/* OP Testy — monochrome liquid-glass UI system
   One shared layer for navigation, typography, surfaces and interaction states. */

:root {
  color: #050505;
  background: #f0f0ee;
  --app-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI Variable", "Segoe UI", Helvetica, Arial, sans-serif;
  font-family: var(--app-font);
  color-scheme: light;
  --app-canvas: #f0f0ee;
  --app-paper: #ffffff;
  --app-paper-soft: #ecece8;
  --app-ink: #050505;
  --app-ink-soft: #111111;
  --app-muted: #666666;
  --app-muted-light: #8c8c8c;
  --app-line: rgba(5, 5, 5, 0.10);
  --app-line-strong: rgba(5, 5, 5, 0.17);
  --app-accent: #050505;
  --app-accent-hover: #000000;
  --app-accent-soft: rgba(5, 5, 5, 0.055);
  --app-success: #147a54;
  --app-success-soft: #e5f5ed;
  --app-danger: #b53b47;
  --app-danger-soft: #fbeaec;
  --app-silver-button: rgba(203, 211, 219, 0.74);
  --app-silver-button-hover: rgba(221, 227, 233, 0.9);
  --app-silver-button-border: rgba(104, 116, 128, 0.34);
  --app-silver-button-text: #17191c;
  --app-silver-button-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), inset 0 -1px 0 rgba(62, 72, 82, 0.1), 0 8px 22px rgba(18, 24, 30, 0.11);
  --app-radius-sm: 10px;
  --app-radius: 18px;
  --app-radius-lg: 28px;
  --app-control-radius: 999px;
  --app-shadow-sm: 0 1px 2px rgba(16, 18, 24, 0.04), 0 8px 24px rgba(16, 18, 24, 0.05);
  --app-shadow: 0 20px 55px rgba(20, 27, 45, 0.10);
  --app-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --app-motion-fast: 160ms;
  --app-motion-base: 220ms;
  --app-motion-reveal: 650ms;
  --academy-ink: #101010;
  --academy-muted: #6f6f6f;
  --academy-line: rgba(0, 0, 0, 0.10);
  --academy-paper: #fbfbfb;
  --academy-wash: #f1f1f1;

  /* Compatibility aliases while page-specific styles are kept intentionally scoped. */
  --premium-black: var(--app-ink);
  --premium-ink: var(--app-ink-soft);
  --premium-muted: var(--app-muted);
  --premium-canvas: var(--app-canvas);
  --premium-paper: var(--app-paper);
  --premium-soft: var(--app-paper-soft);
  --premium-line: var(--app-line);
  --premium-line-strong: var(--app-line-strong);
  --page-bg: var(--app-canvas);
  --page-card: var(--app-paper);
  --page-line: var(--app-line);
  --page-muted: var(--app-muted);
}

*,
*::before,
*::after { box-sizing: border-box; }

small { font-size: inherit; }

html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--app-canvas);
  -webkit-text-size-adjust: 100%;
}

body,
body:not(.about-body) {
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  background: var(--app-canvas);
  color: var(--app-ink);
  font-family: var(--app-font);
  font-size: 16px;
  line-height: 1.5;
  text-align: left;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before { display: none; }
button,
input,
select,
textarea { font: inherit; }
button,
a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; }
.hidden,
[hidden] { display: none !important; }

:where(a, button, input, select, summary):focus-visible {
  outline: 3px solid rgba(49, 87, 232, 0.25);
  outline-offset: 3px;
}

::selection { background: rgba(49, 87, 232, 0.17); }

/* Shared navigation ---------------------------------------------------- */
.site-header,
.topbar {
  position: sticky;
  z-index: 100;
  top: 0;
  width: 100%;
  padding: 0 24px;
  border: 0;
  border-bottom: 1px solid var(--app-line);
  background: rgba(250, 250, 251, 0.88);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  backdrop-filter: blur(18px) saturate(1.15);
}

.site-header-inner,
.topbar-inner {
  width: min(100%, 1200px);
  height: 72px;
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto minmax(170px, 1fr);
  align-items: center;
  gap: 20px;
  margin: 0 auto;
}

.site-brand,
.brand-link {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 10px;
  color: var(--app-ink);
  font-size: 15px;
  font-weight: 760;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.site-brand-mark,
.topbar-brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border: 1px solid var(--app-line);
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 1px 2px rgba(16, 18, 24, 0.06);
}

.primary-navigation,
.topbar-nav {
  position: relative;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-self: center;
  gap: 2px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.primary-navigation > a,
.topbar-nav > a {
  position: relative;
  z-index: 1;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--app-muted);
  font-size: 14px;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.primary-navigation > a:hover,
.topbar-nav > a:hover { background: rgba(16, 18, 24, 0.045); color: var(--app-ink); }
.primary-navigation > a.active,
.primary-navigation > a.is-indicator-target,
.topbar-nav > a.active,
.topbar-nav > a.is-indicator-target { color: var(--app-ink); }

.nav-active-indicator {
  position: absolute;
  z-index: 0;
  left: 0;
  bottom: -16px;
  height: 2px;
  border-radius: 999px;
  background: var(--app-accent);
  opacity: 0;
  pointer-events: none;
}
.nav-indicator-ready .nav-active-indicator { opacity: 1; }
.nav-indicator-animate .nav-active-indicator { transition: width 260ms var(--app-ease), transform 260ms var(--app-ease), opacity 160ms ease; }

.header-actions,
.topbar-actions {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 8px;
}

.header-login,
.nav-login-button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border: 1px solid var(--app-line-strong);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--app-ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(16, 18, 24, 0.03);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}
.header-login:hover,
.nav-login-button:hover { border-color: rgba(16, 18, 24, 0.30); background: #fff; transform: translateY(-1px); }

.profile-icon-link {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--app-line-strong);
  border-radius: 11px;
  background: #fff;
  color: var(--app-ink);
}
.profile-icon-link svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-width: 1.7; }

#menuContainer { position: relative; display: none; }
#menuBtn,
.shell-menu-button {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--app-line-strong);
  border-radius: 10px;
  background: #fff;
  color: var(--app-ink);
  cursor: pointer;
}
.menu-glyph { width: 16px; height: 12px; display: flex; justify-content: space-between; flex-direction: column; }
.menu-glyph span { width: 100%; height: 1.5px; display: block; border-radius: 2px; background: currentColor; transition: transform 240ms var(--app-ease); transform-origin: center; }
.menu-glyph span:last-child { width: 11px; align-self: flex-end; }
#menuBtn[aria-expanded="true"] .menu-glyph span:first-child,
.shell-menu-button[aria-expanded="true"] .menu-glyph span:first-child { transform: translateY(5.25px) rotate(45deg); }
#menuBtn[aria-expanded="true"] .menu-glyph span:last-child,
.shell-menu-button[aria-expanded="true"] .menu-glyph span:last-child { width: 100%; transform: translateY(-5.25px) rotate(-45deg); }

#menuDropdown,
.shell-menu-dropdown {
  position: absolute;
  z-index: 120;
  top: calc(100% + 10px);
  right: 0;
  width: min(280px, calc(100vw - 28px));
  display: grid;
  gap: 2px;
  padding: 8px;
  border: 1px solid var(--app-line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 24px 60px rgba(16, 18, 24, 0.16);
}
#menuDropdown a,
.shell-menu-dropdown a { min-height: 42px; display: flex; align-items: center; padding: 0 12px; border-radius: 9px; color: var(--app-ink); font-size: 14px; font-weight: 640; text-decoration: none; }
#menuDropdown a:hover,
.shell-menu-dropdown a:hover { background: var(--app-paper-soft); }

body.access-checking .site-header::after,
body.access-checking .topbar::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--app-accent) 45%, transparent 100%);
  background-size: 220% 100%;
  content: "";
  animation: accessProgress 1.1s linear infinite;
}
@keyframes accessProgress { to { background-position: -220% 0; } }

/* Shared footer -------------------------------------------------------- */
.site-footer,
.contact-footer {
  width: min(calc(100% - 48px), 1200px);
  min-height: 126px;
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  align-items: start;
  column-gap: clamp(36px, 8vw, 110px);
  row-gap: 0;
  margin: 0 auto;
  padding: 34px 0 44px;
  border: 0;
  background: #e8e8e5;
  box-shadow: 0 0 0 100vmax #e8e8e5;
  clip-path: inset(0 -100vmax);
  color: var(--app-muted);
}
.footer-brand { grid-column: 1; grid-row: 1 / span 2; display: grid; align-content: start; gap: 5px; }
.footer-brand strong { color: var(--app-ink); font-size: 14px; }
.footer-brand span { color: var(--app-muted-light); font-size: 14px; }
.footer-disclaimer { grid-column: 2; grid-row: 1; max-width: 780px; margin: 0; color: var(--app-muted-light); font-size: 14px; line-height: 1.65; }

/* Shared type, forms and actions -------------------------------------- */
.page-eyebrow,
.eyebrow {
  margin: 0 0 12px;
  color: var(--app-accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.primary-link,
.primary-btn,
.secondary-btn,
.quiet-btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.primary-link,
.primary-btn { border-color: var(--app-accent); background: var(--app-accent); color: #fff; }
.primary-link:hover,
.primary-btn:hover { background: var(--app-accent-hover); transform: translateY(-1px); }
.secondary-btn,
.quiet-btn { border-color: var(--app-line-strong); background: #fff; color: var(--app-ink); }
.secondary-btn:hover,
.quiet-btn:hover { border-color: rgba(16, 18, 24, 0.32); }
input,
select {
  min-height: 44px;
  border: 1px solid var(--app-line-strong);
  border-radius: 10px;
  background: #fff;
  color: var(--app-ink);
}
input::placeholder { color: #a0a6b0; }

/* Homepage ------------------------------------------------------------- */
.home-body { background: var(--app-canvas); }
.home-page { width: min(calc(100% - 48px), 1200px); padding: 34px 0 96px; }
.home-hero {
  min-height: 660px;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.72fr);
  gap: clamp(54px, 7vw, 96px);
  padding: clamp(56px, 7vw, 86px) clamp(8px, 3vw, 34px);
  border: 0;
  border-radius: 0;
  background: transparent;
}
.home-eyebrow { margin-bottom: 20px; color: var(--app-accent); font-size: 14px; letter-spacing: 0.15em; }
.home-hero h1 { max-width: 690px; font-size: clamp(54px, 5.6vw, 78px); font-weight: 700; line-height: 1.04; letter-spacing: -0.065em; }
.home-lead { max-width: 610px; margin-top: 27px; color: var(--app-muted); font-size: 16px; line-height: 1.75; }
.home-actions { gap: 10px; margin-top: 34px; }
.home-button {
  min-height: 48px;
  padding: 0 19px;
  border-color: var(--app-line-strong);
  border-radius: 11px;
  font-size: 14px;
  box-shadow: none;
}
.home-button-primary { border-color: var(--app-accent); background: var(--app-accent); color: #fff; box-shadow: 0 10px 24px rgba(49, 87, 232, 0.19); }
.home-button-primary:hover { background: var(--app-accent-hover); }
.home-button-secondary:hover { border-color: rgba(16, 18, 24, 0.32); }

.home-feature-showcase {
  overflow: hidden;
  padding: 30px;
  border: 0;
  border-radius: var(--app-radius-lg);
  background:
    radial-gradient(circle at 84% 8%, rgba(91, 123, 255, 0.30), transparent 30%),
    linear-gradient(145deg, #151a2a 0%, #0e111a 100%);
  color: #fff;
  box-shadow: 0 28px 75px rgba(18, 25, 47, 0.22);
}
.home-showcase-heading { padding-bottom: 19px; border-color: rgba(255, 255, 255, 0.13); }
.home-showcase-heading span { color: rgba(255, 255, 255, 0.48); }
.home-showcase-heading strong { color: #fff; }
.home-feature-list > a { border-color: rgba(255, 255, 255, 0.11); color: #fff; }
.home-feature-list small { color: rgba(255, 255, 255, 0.56); }
.home-feature-icon { border: 1px solid rgba(255, 255, 255, 0.52); border-radius: 15px; background: rgba(255, 255, 255, 0.36); }
.home-feature-list > a:hover .home-feature-icon { border-color: rgba(255, 255, 255, 0.72); background: rgba(255, 255, 255, 0.45); }
.home-feature-icon img { filter: none; opacity: 1; }
.home-showcase-cta { min-height: 46px; border: 1px solid rgba(255, 255, 255, 0.14); border-radius: 11px; background: #fff; color: var(--app-ink); }
.home-showcase-cta:hover { background: #edf0ff; }

.home-metrics { width: min(100%, 1100px); padding: 44px 0; border-top: 1px solid var(--app-line); border-bottom: 1px solid var(--app-line); }
.home-metrics > div { border-color: var(--app-line); }
.home-metrics strong { font-size: 28px; }
.home-metrics span { color: var(--app-muted); }
.home-process { width: min(100%, 1100px); padding: 116px 0; }
.home-process h2,
.home-cta h2,
.home-links h2 { font-weight: 680; }
.home-process ol { border-color: var(--app-line-strong); }
.home-process li { border-color: var(--app-line); }
.home-process li:hover { background: transparent; }
.home-process li > span { color: var(--app-accent); }
.home-end-grid { gap: 16px; }
.home-cta,
.home-links { border-radius: var(--app-radius-lg); }
.home-cta { background: linear-gradient(145deg, #151a2a, #0f121b); }
.home-cta .home-eyebrow { color: #90a6ff; }
.home-button-light { border-color: #fff; background: #fff; }
.home-links { border-color: var(--app-line); box-shadow: var(--app-shadow-sm); }
.home-links nav,
.home-links nav a { border-color: var(--app-line); }
/* Offer and Academy marketing ----------------------------------------- */
body.offer-body,
.academy-marketing-body { background: var(--app-canvas); color: var(--app-ink); }
.offer-hero,
.academy-marketing-hero {
  width: min(calc(100% - 48px), 1200px);
  min-height: 660px;
  gap: clamp(52px, 7vw, 92px);
  margin-top: 22px;
  padding: clamp(58px, 7vw, 88px) clamp(8px, 3vw, 34px);
  border: 0;
  border-radius: 0;
  background: transparent;
}
.academy-marketing-hero { width: 100%; }
.offer-hero > *,
.academy-marketing-hero > *,
.about2-hero > * { min-width: 0; }
.offer-kicker,
.academy-marketing-eyebrow { color: var(--app-accent); font-size: 14px; letter-spacing: 0.15em; }
.offer-kicker span { background: var(--app-accent); }
.offer-hero h1,
.academy-marketing-copy h1 { font-size: clamp(52px, 5.6vw, 76px); font-weight: 690; line-height: 0.98; letter-spacing: -0.064em; }
.offer-lead,
.academy-marketing-lead { color: var(--app-muted); line-height: 1.75; }
.offer-button,
.offer-text-link,
.academy-marketing-button { min-height: 48px; border-radius: 11px; font-size: 14px; }
.offer-button-primary,
.academy-marketing-button.is-dark { border-color: var(--app-accent); background: var(--app-accent); box-shadow: 0 10px 24px rgba(49, 87, 232, 0.18); }
.offer-button-primary:hover,
.academy-marketing-button.is-dark:hover { background: var(--app-accent-hover); }

.pricing-card,
.academy-volume-card {
  border: 0;
  border-radius: var(--app-radius-lg);
  background:
    radial-gradient(circle at 84% 5%, rgba(91, 123, 255, 0.32), transparent 30%),
    linear-gradient(145deg, #151a2a, #0e111a);
  box-shadow: 0 30px 80px rgba(18, 25, 47, 0.23);
  color: #fff;
}
.pricing-card-top,
.academy-volume-heading { border-color: rgba(255, 255, 255, 0.13); color: rgba(255, 255, 255, 0.50); }
.pricing-card-top strong,
.pricing-price > strong,
.pricing-price span,
.academy-volume-main strong { color: #fff; }
.pricing-price small,
.pricing-equivalent,
.pricing-card li,
.pricing-note,
.academy-volume-main span,
.academy-volume-card dt,
.academy-volume-card > p { color: rgba(255, 255, 255, 0.60); }
.pricing-equivalent,
.academy-volume-card dl,
.academy-volume-card dl div { border-color: rgba(255, 255, 255, 0.12); }
.academy-volume-card dd { color: #fff; }
.pricing-card li::before { border-color: #91a7ff; }
.pricing-card .offer-button-dark { border-color: #fff; background: #fff; color: var(--app-ink); }
.pricing-card .offer-button-dark:hover { background: #e9eeff; }

.offer-proof,
.academy-proof { border-color: var(--app-line); }
.academy-proof { border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.academy-proof div { border-color: var(--app-line); }
.benefits-section,
.academy-curriculum,
.academy-experience { padding-top: 116px; padding-bottom: 116px; }
.benefit-grid { gap: 14px; border: 0; }
.benefit-grid article {
  min-height: 290px;
  padding: 28px;
  border: 0 !important;
  border-radius: var(--app-radius);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: inset 0 0 0 1px var(--app-line);
}
.benefit-grid article:hover { background: #fff; box-shadow: var(--app-shadow-sm); }
.benefit-visual { border: 0; background: var(--app-accent-soft); }
.academy-curriculum-list,
.academy-curriculum-list li { border-color: var(--app-line); }
.academy-curriculum-list li > span,
.academy-experience-grid span { color: var(--app-accent); }
.academy-sample {
  border-radius: var(--app-radius-lg);
  background: linear-gradient(145deg, #151a2a, #0e111a);
}
.academy-sample-window { border: 0; border-radius: var(--app-radius); box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28); }
.academy-experience-grid,
.academy-experience-grid article { border-color: var(--app-line); }
.learning-path,
.offer-final,
.academy-final-cta { border-radius: var(--app-radius-lg); background: linear-gradient(145deg, #151a2a, #0e111a); }
.offer-final .offer-button-primary,
.academy-final-cta .academy-marketing-button { box-shadow: none; }
.faq-list,
.faq-list details { border-color: var(--app-line); }

/* Quiz and authentication --------------------------------------------- */
.quiz-page {
  width: min(calc(100% - 48px), 1200px);
  margin: 0 auto;
  padding: 58px 0 104px;
}
.quiz-page-header { max-width: 820px; margin: 0 0 34px; text-align: left; }
.quiz-eyebrow { margin: 0 0 11px; color: var(--app-accent); font-size: 14px; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.quiz-page-header h1 { margin: 0; color: var(--app-ink); font-size: clamp(42px, 5vw, 66px); font-weight: 690; line-height: 1; letter-spacing: -0.058em; }

.quiz-workspace.container {
  width: 100%;
  max-width: none;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  animation: none;
}
.quiz-workspace.container::before {
  grid-column: 1;
  grid-row: 1 / 3;
  z-index: 0;
  border-radius: var(--app-radius-lg);
  background: #fff;
  box-shadow: var(--app-shadow);
  content: "";
}
.quiz-workspace-header {
  grid-column: 1;
  grid-row: 1;
  z-index: 1;
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0;
  padding: 0 30px;
  border: 0;
  border-bottom: 1px solid var(--app-line);
}
.quiz-set-display,
.quiz-score-display { min-width: 0; display: grid; gap: 3px; }
.quiz-set-display > span,
.quiz-score-display > span { color: var(--app-muted-light); font-size: 14px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.quiz-set-display strong,
.quiz-score-display strong { overflow: hidden; color: var(--app-ink); font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }
.quiz-score-display { margin-left: auto; text-align: right; }
.quiz-score-display strong { color: var(--app-accent); font-variant-numeric: tabular-nums; }
.quiz-workspace-tools { display: flex; align-items: center; }
.quiz-workspace #quickRestart {
  position: static;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: var(--app-paper-soft);
  color: var(--app-muted);
  box-shadow: none;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, transform 220ms var(--app-ease);
}
.quiz-workspace #quickRestart:hover { background: var(--app-accent-soft); color: var(--app-accent); transform: rotate(-20deg); }
.quiz-workspace #quickRestart svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.quiz-workspace #quickRestart.is-loading svg { animation: quizRestart 0.8s linear infinite; }
@keyframes quizRestart { to { transform: rotate(-360deg); } }

.quiz-launch { min-height: 0; }
.quiz-launch:not(.hidden) { display: contents; }
.quiz-launch-main {
  grid-column: 1;
  grid-row: 2;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(300px, 0.68fr);
  grid-template-rows: auto auto auto auto;
  align-items: start;
  column-gap: clamp(38px, 5vw, 68px);
  padding: clamp(36px, 4vw, 48px) clamp(42px, 5.5vw, 68px) clamp(38px, 4.2vw, 50px);
}
.quiz-launch-kicker { grid-column: 1; margin: 0 0 11px; color: var(--app-accent); font-size: 14px; font-weight: 800; letter-spacing: 0.13em; text-transform: uppercase; }
.quiz-launch-main h2 { grid-column: 1; max-width: 650px; margin: 0; color: var(--app-ink); font-size: clamp(38px, 4vw, 52px); font-weight: 680; line-height: 1.02; letter-spacing: -0.055em; }
.quiz-launch-main > p:not(.quiz-launch-kicker):not(.quiz-access-note) { grid-column: 1; max-width: 650px; margin: 17px 0 0; color: var(--app-muted); font-size: 14px; line-height: 1.7; }
.olympiad-blueprint { width: 100%; display: grid; grid-column: 2; grid-row: 1 / 4; grid-template-columns: 1fr; align-self: stretch; gap: 0; margin-top: 0; border-top: 1px solid var(--app-line); border-bottom: 1px solid var(--app-line); }
.olympiad-blueprint > div { min-height: 84px; display: flex; align-items: center; justify-content: center; gap: 13px; padding: 16px 0; }
.olympiad-blueprint > div + div { padding-left: 0; border-top: 1px solid var(--app-line); border-left: 0; }
.olympiad-blueprint span { color: var(--app-accent); font-size: 14px; font-weight: 800; }
.olympiad-blueprint strong { color: var(--app-ink); font-size: 15px; }
.olympiad-blueprint small { color: var(--app-muted); font-size: 14px; }
.test-specs { width: 100%; display: flex; flex-wrap: wrap; grid-column: 1; gap: 8px 20px; margin-top: 22px; padding: 18px 0 0; border: 0; border-top: 1px solid var(--app-line); color: var(--app-muted); font-size: 14px; }
.test-specs strong { color: var(--app-ink); }
.quiz-access-note { width: 100%; margin: 24px 0 0; padding: 13px 15px; border: 0; border-radius: 10px; background: var(--app-accent-soft); color: #46506c; font-size: 14px; line-height: 1.55; }
.quiz-access-note strong { color: var(--app-accent-hover); }
#startBtn,
.generator-primary,
.generator-secondary {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 26px 0 0;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 14px;
  font-weight: 720;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}
#startBtn { border-color: var(--app-accent); background: var(--app-accent); color: #fff; box-shadow: 0 10px 24px rgba(49, 87, 232, 0.18); }
#startBtn:hover { background: var(--app-accent-hover); transform: translateY(-1px); }
.quiz-launch-main #startBtn { grid-column: 2; align-self: end; justify-self: end; min-width: 176px; margin: 22px 0 0; }

.quiz-launch-aside.quiz-generator {
  grid-column: 1;
  grid-row: 3;
  z-index: 1;
  min-width: 0;
  margin-top: 28px;
  padding: clamp(38px, 4vw, 50px);
  border: 0;
  border-radius: var(--app-radius-lg);
  background:
    radial-gradient(circle at 88% 2%, rgba(91, 123, 255, 0.34), transparent 30%),
    linear-gradient(145deg, #151a2a, #0e111a);
  color: #fff;
  box-shadow: var(--app-shadow);
}
.generator-heading { padding-right: 0; }
.generator-badge { position: static; display: inline-flex; margin-bottom: 23px; padding: 6px 8px; border: 1px solid rgba(255,255,255,0.16); border-radius: 7px; background: rgba(255,255,255,0.07); color: #aebcff; font-size: 14px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.quiz-generator .quiz-launch-kicker { margin-bottom: 9px; color: rgba(255,255,255,0.48); }
.quiz-generator h3 { max-width: 370px; margin: 0; color: #fff; font-size: 25px; font-weight: 650; line-height: 1.14; letter-spacing: -0.035em; }
.generator-block { margin-top: 27px; }
.generator-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; color: rgba(255,255,255,0.52); font-size: 14px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; }
.generator-label strong { color: #fff; font-size: 14px; }
.generator-segments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; padding: 4px; border: 1px solid rgba(255,255,255,0.12); border-radius: 11px; background: rgba(0,0,0,0.16); }
.generator-segments button { min-height: 38px; padding: 0 8px; border: 0; border-radius: 8px; background: transparent; color: rgba(255,255,255,0.55); font-size: 14px; font-weight: 700; cursor: pointer; }
.generator-segments button:hover { color: #fff; }
.generator-segments button.is-selected { background: #fff; color: var(--app-ink); box-shadow: 0 3px 12px rgba(0,0,0,0.20); }
.generator-primary { width: 100%; border-color: #fff; background: #fff; color: var(--app-ink); box-shadow: none; }
.generator-primary:hover { background: #e9eeff; }
.generator-divider { display: flex; align-items: center; gap: 10px; margin: 25px 0 18px; color: rgba(255,255,255,0.36); font-size: 14px; text-align: center; }
.generator-divider::before,
.generator-divider::after { height: 1px; flex: 1; background: rgba(255,255,255,0.12); content: ""; }
.category-fields { display: grid; gap: 12px; }
.category-field { display: grid; gap: 7px; color: rgba(255,255,255,0.50); font-size: 14px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.custom-picker { position: relative; min-width: 0; text-transform: none; }
.custom-picker-native { display: none; }
.custom-picker-trigger {
  width: 100%;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0;
  padding: 0 13px 0 14px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 11px;
  background: #191918;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-align: left;
  box-shadow: none;
  cursor: pointer;
}
.custom-picker-trigger:hover:not(:disabled),
.custom-picker.is-open .custom-picker-trigger { border-color: rgba(255,255,255,0.42); background: #20201f; transform: none; }
.custom-picker-trigger:disabled { color: #777771; opacity: .62; cursor: not-allowed; }
.custom-picker-trigger > span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.custom-picker-chevron { width: 8px; height: 8px; flex: 0 0 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform 160ms ease; }
.custom-picker.is-open .custom-picker-chevron { transform: translateY(2px) rotate(225deg); }
.custom-picker-menu {
  position: absolute;
  top: calc(100% + 7px);
  right: 0;
  left: 0;
  z-index: 40;
  max-height: 260px;
  display: grid;
  gap: 3px;
  padding: 6px;
  overflow-y: auto;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  background: #171716;
  box-shadow: 0 22px 50px rgba(0,0,0,0.48);
}
.custom-picker-option {
  width: 100%;
  min-height: 40px;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 9px 11px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #b9b9b3;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
  text-align: left;
  box-shadow: none;
  cursor: pointer;
}
.custom-picker-option:hover,
.custom-picker-option:focus-visible { background: #2a2a28; color: #fff; transform: none; }
.custom-picker-option.is-selected { background: #fff; color: #111; }
.generator-secondary { width: 100%; margin-top: 13px; border-color: rgba(255,255,255,0.15); background: transparent; color: #fff; }
.generator-secondary:hover:not(:disabled) { border-color: rgba(255,255,255,0.32); background: rgba(255,255,255,0.06); }
.generator-secondary:disabled { opacity: 0.38; cursor: not-allowed; }

#quizBox { grid-column: 1; grid-row: 2; z-index: 1; padding: clamp(34px, 5vw, 58px); }
.question-meta { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.question-context { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; color: #3f3f3f; font-size: 14px; font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; }
.difficulty-pill { padding: 5px 8px; border: 0; border-radius: 7px; background: var(--app-paper-soft); color: var(--app-muted); }
.difficulty-pill.is-hard { background: #f8e9ed; color: #a43b50; }
.save-review-button {
  width: 38px;
  height: 38px;
  min-height: 38px;
  display: grid;
  flex: 0 0 38px;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 1px solid var(--app-line-strong);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--app-muted);
  box-shadow: none;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}
.save-review-button::before {
  width: 14px;
  height: 19px;
  display: block;
  background: currentColor;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 73%, 0 100%);
  content: "";
}
.save-review-button:hover { border-color: rgba(0, 0, 0, 0.34); background: #fff; color: var(--app-ink); transform: translateY(-1px); }
.save-review-button.is-saved,
.save-review-button.is-saved:hover {
  border-color: #dfad00;
  background: #fff3ad;
  color: #e4ad00;
}
.save-review-button:focus-visible { outline: 3px solid rgba(228, 173, 0, 0.25); outline-offset: 2px; }
.question-text { max-width: 930px; margin: 0 0 30px; color: var(--app-ink); font-size: clamp(22px, 2.4vw, 31px); font-weight: 650; line-height: 1.3; letter-spacing: -0.035em; }
#answers { display: grid; gap: 10px; }
#answers button {
  width: 100%;
  min-height: 66px;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 13px 18px;
  border: 1px solid var(--app-line);
  border-radius: 13px;
  background: #fff;
  color: var(--app-ink-soft);
  font-size: 14px;
  font-weight: 540;
  line-height: 1.5;
  text-align: left;
  box-shadow: none;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}
#answers button:hover:not(:disabled) { border-color: rgba(49,87,232,0.42); background: #fafbff; transform: translateY(-1px); }
.answer-letter { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; background: var(--app-paper-soft); color: var(--app-muted); font-size: 14px; font-weight: 800; text-transform: uppercase; }
.answer-copy { min-width: 0; }
#answers button.correct { border-color: rgba(20,122,84,0.30); background: var(--app-success-soft); color: #0f6445; }
#answers button.correct .answer-letter { background: var(--app-success); color: #fff; }
#answers button.wrong { border-color: rgba(181,59,71,0.30); background: var(--app-danger-soft); color: #92303b; }
#answers button.wrong .answer-letter { background: var(--app-danger); color: #fff; }
#answers button.neutral { background: var(--app-paper-soft); color: var(--app-muted); }
#answers button.checking { position: relative; color: transparent; }
#answers button.checking::after { position: absolute; top: 50%; left: 50%; width: 18px; height: 18px; margin: -9px; border: 2px solid rgba(49,87,232,0.20); border-top-color: var(--app-accent); border-radius: 50%; content: ""; animation: spin 0.7s linear infinite; }

#result { margin-top: 22px; padding: 20px 22px; border: 0; border-left: 3px solid var(--app-success); border-radius: 0 12px 12px 0; background: #f3f8f5; color: #33443d; }
#result p { margin: 0; font-size: 14px; line-height: 1.7; }
#result p + p { margin-top: 10px; }
.quiz-actions { display: flex; align-items: center; gap: 10px; margin-top: 22px; }
.quiz-actions #aiContainer { width: auto; margin: 0; }
.quiz-actions #askAiBtn,
.quiz-actions #nextBtn,
.summary-actions button,
.summary-actions a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0 16px;
  border: 1px solid var(--app-line-strong);
  border-radius: 10px;
  background: #fff;
  color: var(--app-ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: none;
  cursor: pointer;
}
.quiz-actions #nextBtn { margin-left: auto; border-color: var(--app-accent); background: var(--app-accent); color: #fff; }
.quiz-actions #askAiBtn:hover { border-color: rgba(16,18,24,0.32); }
.quiz-actions #nextBtn:hover { background: var(--app-accent-hover); }
.ai-explanation { margin-top: 18px; padding: 22px; border: 0; border-radius: 14px; background: var(--app-accent-soft); color: #333d5d; }
.ai-explanation > strong { color: var(--app-accent-hover); }
.ai-content { margin-top: 10px; font-size: 14px; line-height: 1.7; }
.ai-content p { margin: 0; }
.ai-content p + p { margin-top: 12px; }
.ai-content ul, .ai-content ol { margin: 8px 0 0; padding-left: 22px; }
.ai-content li + li { margin-top: 4px; }
.ai-content code { padding: 2px 5px; border-radius: 5px; background: rgba(0, 0, 0, 0.08); font: 0.92em ui-monospace, SFMono-Regular, Consolas, monospace; }
.ai-content blockquote { margin: 10px 0 0; padding-left: 12px; border-left: 3px solid rgba(51, 61, 93, 0.24); }
.ai-content a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.ai-fail-message { margin-top: 18px; padding: 14px; border-radius: 10px; background: var(--app-danger-soft); color: var(--app-danger); font-size: 14px; }
.quiz-summary { max-width: 820px; }
.quiz-summary h2 { margin: 0; font-size: clamp(38px, 4vw, 54px); letter-spacing: -0.05em; }
.summary-score { margin-top: 22px; color: var(--app-muted); font-size: 17px; }
.summary-score strong { color: var(--app-accent); }
.summary-details { margin-top: 26px; padding: 10px 22px; border: 0; border-radius: 14px; background: var(--app-paper-soft); }
.summary-details h3 { margin: 12px 0; }
.summary-row { display: flex; justify-content: space-between; gap: 18px; padding: 12px 0; border-bottom: 1px solid var(--app-line); color: var(--app-muted); font-size: 14px; }
.summary-row:last-child { border-bottom: 0; }
.summary-row strong { color: var(--app-ink); }
.summary-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.summary-actions > :first-child { border-color: var(--app-accent); background: var(--app-accent); color: #fff; }
.quiz-workspace.is-loading { opacity: 1 !important; pointer-events: none; }
.quiz-page button,
.overlay button { margin: 0; }
.generator-segments button:hover,
.overlay button:hover { transform: none; }
#startBtn[aria-busy="true"] { position: relative; padding-right: 44px; }
#startBtn[aria-busy="true"]::after { position: absolute; right: 16px; width: 15px; height: 15px; border: 2px solid rgba(255,255,255,0.35); border-top-color: #fff; border-radius: 50%; content: ""; animation: spin 0.7s linear infinite; }

.overlay {
  position: fixed;
  z-index: 500;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 24px;
  background: rgba(9, 12, 20, 0.62);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
#paywallOverlay {
  overflow: auto;
  padding: 12px;
}
.auth-card,
.verification-card,
.paywall-card {
  position: relative;
  width: min(100%, 480px);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 32px;
  border: 1px solid rgba(255,255,255,0.75);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 32px 90px rgba(5, 8, 16, 0.28);
  color: var(--app-ink);
}
.auth-logo { width: 44px; height: 44px; display: block; margin: 0 auto 14px; border-radius: 12px; }
.auth-card h1,
.verification-card h2,
.paywall-card h2 { margin: 0; font-size: 26px; letter-spacing: -0.04em; text-align: center; }
.auth-card > p,
.verification-card > p,
.paywall-subtitle { color: var(--app-muted); font-size: 14px; line-height: 1.6; text-align: center; }
.auth-tabs { display: grid; grid-template-columns: repeat(2,1fr); gap: 4px; margin-top: 22px; padding: 4px; border: 0; border-radius: 11px; background: var(--app-paper-soft); }
.auth-tab { min-height: 38px; border: 0; border-radius: 8px; background: transparent; color: var(--app-muted); font-size: 14px; font-weight: 700; cursor: pointer; }
.auth-tab.active { background: #fff; color: var(--app-ink); box-shadow: 0 2px 8px rgba(16,18,24,0.08); }
.email-auth-form { display: grid; gap: 8px; margin-top: 20px; }
.email-auth-form label,
.code-form label { color: var(--app-muted); font-size: 14px; font-weight: 750; }
.email-auth-form input { width: 100%; padding: 0 12px; }
.email-auth-form .marketing-consent {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  margin-top: 8px;
  color: var(--app-muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
  cursor: pointer;
}
.email-auth-form .marketing-consent.mode-hidden { display: none; }
.email-auth-form .marketing-consent input {
  width: 18px;
  min-height: 18px;
  height: 18px;
  margin: 1px 0 0;
  padding: 0;
  accent-color: var(--app-accent);
}
.email-auth-btn,
.google-btn,
.verification-primary,
.verification-secondary,
.subscribe-btn { width: 100%; min-height: 46px; border-radius: 10px; font-size: 14px; font-weight: 700; }
.email-auth-btn,
.verification-primary,
.subscribe-btn { margin-top: 8px; border: 1px solid var(--app-accent); background: var(--app-accent); color: #fff; }
.google-btn,
.verification-secondary { border: 1px solid var(--app-line-strong); background: #fff; color: var(--app-ink); }
.google-btn { display: flex; align-items: center; justify-content: center; gap: 10px; }
.auth-divider { display: flex; align-items: center; gap: 10px; margin: 18px 0; color: var(--app-muted-light); font-size: 14px; }
.auth-divider::before,
.auth-divider::after { height: 1px; flex: 1; background: var(--app-line); content: ""; }
.reset-password-btn,
.sign-out-link,
.code-toggle-btn { border: 0; background: transparent; color: var(--app-muted); font-size: 14px; cursor: pointer; }
.password-requirement,
.auth-footer { color: var(--app-muted-light); font-size: 14px; }
.auth-message { margin: 8px 0 0; font-size: 14px; }
.auth-error { color: var(--app-danger); }
.auth-success { color: var(--app-success); }
.verification-hint { padding: 12px; border: 0; border-radius: 10px; background: var(--app-paper-soft); }
.premium-badge { display: table; margin: 0 auto 12px; padding: 6px 8px; border-radius: 7px; background: var(--app-accent-soft); color: var(--app-accent); font-size: 14px; font-weight: 800; letter-spacing: 0.12em; }
.paywall-dismiss,
.auth-dismiss { position: absolute; top: 17px; right: 17px; width: 34px; height: 34px; border: 0; border-radius: 9px; background: var(--app-paper-soft); color: var(--app-muted); cursor: pointer; }
.paywall-card { position: relative; width: min(100%, 560px); }
#paywallOverlay .paywall-card {
  max-height: calc(100vh - 24px);
  max-height: calc(100dvh - 24px);
  overflow: auto;
  padding: 22px 28px 18px;
}
.user-info-bar { display: flex; align-items: center; gap: 10px; margin: 18px 0; padding: 12px; border-radius: 11px; background: var(--app-paper-soft); }
.user-avatar { width: 36px; height: 36px; border-radius: 10px; object-fit: cover; }
.user-text { min-width: 0; display: grid; }
.user-name { color: var(--app-ink); font-size: 14px; font-weight: 700; }
.user-email-text { overflow: hidden; color: var(--app-muted); font-size: 14px; text-overflow: ellipsis; }
.features-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px 18px; margin: 18px 0; padding: 0; list-style: none; }
.paywall-card.code-entry-open .features-list,
.paywall-card:has(.code-panel-shell.open) .features-list { display: grid; }
.features-list li { display: flex; gap: 8px; color: var(--app-muted); font-size: 14px; line-height: 1.45; }
.feature-check { display: grid; width: 18px; height: 18px; flex: 0 0 18px; place-items: center; border-radius: 50%; background: #16865d; }
.feature-check::after { display: block; width: 7px; height: 4px; margin-top: -1px; border-left: 1.5px solid #fff; border-bottom: 1.5px solid #fff; content: ""; transform: rotate(-45deg); }
.price-box { padding: 18px; border: 0; border-radius: 14px; background: #141927; color: #fff; }
.price-row { display: flex; align-items: baseline; gap: 6px; }
.price-amount { font-size: 38px; font-weight: 750; letter-spacing: -0.05em; }
.price-currency { font-size: 14px; font-weight: 800; }
.price-month,
.price-period { color: rgba(255,255,255,0.58); font-size: 14px; }
.code-panel-shell {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 320ms var(--app-ease), opacity 220ms ease;
  will-change: grid-template-rows;
}
.code-panel-shell.open { grid-template-rows: 1fr; opacity: 1; }
.code-panel-inner { min-height: 0; overflow: hidden; transform: translateY(-6px); transition: transform 320ms var(--app-ease); }
.code-panel-shell.open .code-panel-inner { transform: translateY(0); }
.code-form { padding: 6px 0 0; }
.code-form label { margin-bottom: 4px; font-size: 13px; line-height: 1.2; }
.code-input-row { display: grid; grid-template-columns: minmax(0, 1fr) 96px; align-items: center; gap: 8px; margin-top: 0; }
.code-input-row input,
.code-input-row button { height: 40px; min-height: 40px; align-self: center; margin: 0; }
.code-input-row input { min-width: 0; padding: 0 11px; }
.code-input-row input:focus { border-color: var(--app-accent); box-shadow: inset 0 0 0 2px rgba(49, 87, 232, 0.24); }
.code-input-row input:focus-visible { outline: 2px solid var(--app-accent); outline-offset: -2px; }
.code-input-row button { display: flex; align-items: center; justify-content: center; min-width: 0; padding: 0; border: 0; border-radius: 10px; background: var(--app-ink); color: #fff; font-size: 14px; font-weight: 700; line-height: 1; }
.code-status { min-height: 0; margin: 6px 0 0; font-size: 13px; line-height: 1.3; }
.code-status:empty { display: none; }
.spinner,
.profile-loader,
.academy-loader { width: 26px; height: 26px; border: 2px solid rgba(49,87,232,0.18); border-top-color: var(--app-accent); border-radius: 50%; animation: spin 0.75s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Analytics and authenticated product pages -------------------------- */
.content-page,
.academy-page { width: min(calc(100% - 48px), 1160px); margin: 0 auto; padding: 72px 0 104px; }
.content-heading,
.academy-heading { margin-bottom: 38px; }
.content-heading h1,
.academy-heading h1 { margin: 0; color: var(--app-ink); font-size: clamp(42px, 5vw, 62px); font-weight: 680; line-height: 1; letter-spacing: -0.055em; }
.content-heading > p:last-child,
.academy-heading > div > p:not(.page-eyebrow) { max-width: 690px; margin: 18px 0 0; color: var(--app-muted); font-size: 14px; line-height: 1.7; }
.analytics-loading,
.academy-state,
.access-state { min-height: 280px; display: grid; align-content: center; justify-items: start; gap: 10px; padding: 38px; border: 0; border-radius: var(--app-radius-lg); background: #fff; box-shadow: var(--app-shadow-sm); }
.analytics-loading { overflow: hidden; }
.loading-line { width: min(100%, 540px); height: 16px; border-radius: 6px; background: linear-gradient(90deg, #edf0f4, #f8f9fb, #edf0f4); background-size: 220% 100%; animation: skeleton 1.2s linear infinite; }
.loading-line.short { width: min(62%, 340px); }
@keyframes skeleton { to { background-position: -220% 0; } }
.access-state h2,
.academy-state h1 { max-width: 650px; margin: 0; font-size: clamp(30px, 4vw, 44px); letter-spacing: -0.045em; }
.access-state p:not(.page-eyebrow),
.academy-state > p:not(.page-eyebrow) { max-width: 620px; margin: 0; color: var(--app-muted); line-height: 1.7; }
.metric-band { display: grid; grid-template-columns: repeat(4,1fr); overflow: hidden; border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.metric-item { min-height: 126px; padding: 27px; border-color: var(--app-line); }
.metric-label { color: var(--app-muted); font-size: 14px; font-weight: 720; letter-spacing: 0.06em; text-transform: uppercase; }
.metric-value { margin-top: 9px; color: var(--app-ink); font-size: 31px; letter-spacing: -0.04em; }
.analytics-section { margin-top: 16px; padding: 32px; border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.section-heading-row { align-items: flex-end; margin-bottom: 18px; }
.section-heading-row h2 { margin: 0; font-size: 24px; letter-spacing: -0.035em; }
.section-meta { padding: 6px 8px; border-radius: 7px; background: var(--app-paper-soft); color: var(--app-muted); font-size: 14px; font-weight: 700; }
.section-intro { color: var(--app-muted); font-size: 14px; }
.review-library { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.review-card { min-height: 210px; padding: 20px; border: 1px solid var(--app-line); border-radius: 14px; background: #fff; box-shadow: none; }
.review-card h3 { font-size: 15px; line-height: 1.45; }
.review-card-actions button,
.history-filters button,
.show-all-button { min-height: 36px; padding: 0 11px; border: 1px solid var(--app-line-strong); border-radius: 9px; background: #fff; color: var(--app-ink); font-size: 14px; font-weight: 700; }
.review-remove { color: var(--app-danger) !important; }
.review-empty,
.history-empty { padding: 30px; border: 0; border-radius: 14px; background: var(--app-paper-soft); }
.category-row { padding: 17px 0; border-color: var(--app-line); }
.category-track { background: var(--app-paper-soft); }
.category-fill { background: var(--app-accent); }
.history-filters { gap: 6px; }
.history-filters button.is-selected { border-color: var(--app-accent); background: var(--app-accent); color: #fff; }
.history-item { overflow: hidden; border: 1px solid var(--app-line); border-radius: 13px; background: #fff; }
.answer-review { border-color: var(--app-line); }

.academy-heading { display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,380px); align-items: end; gap: 48px; }
.academy-overview { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.academy-overview span { padding: 7px 9px; border-radius: 8px; background: var(--app-accent-soft); color: var(--app-accent); font-size: 14px; font-weight: 700; }
.academy-search { display: grid; gap: 8px; color: var(--app-muted); font-size: 14px; font-weight: 720; letter-spacing: 0.06em; text-transform: uppercase; }
.academy-search input { width: 100%; padding: 0 13px; text-transform: none; }
.academy-layout { display: grid; grid-template-columns: 270px minmax(0,1fr); gap: 16px; align-items: start; }
.academy-sidebar,
.academy-reader { border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.academy-sidebar { position: sticky; top: 88px; padding: 12px; }
.academy-sidebar-heading { padding: 10px 10px 14px; }
.academy-module-button { width: 100%; min-height: 44px; display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 7px; padding: 8px 10px; border: 0; border-radius: 9px; background: transparent; color: var(--app-muted); text-align: left; cursor: pointer; }
.academy-module-button:hover { background: var(--app-paper-soft); color: var(--app-ink); }
.academy-module-button.active { background: var(--app-accent-soft); color: var(--app-accent-hover); }
.academy-module-button span:first-child { font-size: 14px; font-weight: 800; }
.academy-module-button span:last-child { font-size: 14px; font-weight: 650; line-height: 1.35; }
.academy-resources { margin-top: 12px; padding: 18px 10px 8px; border-top: 1px solid var(--app-line); }
.academy-resources h2 { font-size: 14px; text-transform: uppercase; }
.academy-resources a { display: block; padding: 7px 0; color: var(--app-muted); font-size: 14px; }
.academy-reader { min-height: 720px; padding: clamp(32px, 5vw, 58px); }
.module-header h2 { margin: 0; font-size: clamp(34px, 4vw, 50px); letter-spacing: -0.05em; }
.module-number { color: var(--app-accent); }
.module-meta { color: var(--app-muted-light); }
.academy-section-list { border-color: var(--app-line); }
.academy-section-list a { color: var(--app-muted); }
.academy-content .academy-section { padding: 34px 0; border-color: var(--app-line); }
.academy-section h3 { font-size: 23px; letter-spacing: -0.03em; }
.academy-section p,
.academy-section li { color: #515966; line-height: 1.78; }
.module-loading { border-radius: 12px; background: rgba(255,255,255,0.94); }

/* About and contact ---------------------------------------------------- */
.about-body.about-v2 { background: var(--app-canvas); color: var(--app-ink); }
.about2-page { width: min(calc(100% - 48px), 1200px); margin: 0 auto; padding: 34px 0 96px; }
.about2-eyebrow { margin: 0 0 16px; color: var(--app-accent); font-size: 14px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.about2-hero { min-height: 660px; display: grid; grid-template-columns: minmax(0,1fr) minmax(420px,.82fr); align-items: center; gap: clamp(48px,6vw,78px); padding: clamp(54px,7vw,84px) clamp(8px,3vw,34px); }
.about2-hero-copy h1 { max-width: 730px; margin: 0; font-size: clamp(52px,5.6vw,76px); font-weight: 690; line-height: .99; letter-spacing: -.062em; }
.about2-lead { max-width: 650px; margin: 25px 0 0; color: var(--app-muted); font-size: 16px; line-height: 1.75; }
.about2-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.about2-button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 18px; border: 1px solid var(--app-line-strong); border-radius: 11px; color: var(--app-ink); font-size: 14px; font-weight: 700; text-decoration: none; }
.about2-button-primary { border-color: var(--app-accent); background: var(--app-accent); color: #fff; box-shadow: 0 10px 24px rgba(49,87,232,.18); }
.about2-button-secondary { background: #fff; }
.about2-funnel { padding: 34px; border: 0; border-radius: var(--app-radius-lg); background: linear-gradient(145deg,#151a2a,#0e111a); box-shadow: 0 30px 80px rgba(18,25,47,.23); color: #fff; }
.about2-card-heading { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.48); font-size: 14px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.about2-final-number { display: grid; gap: 5px; padding: 32px 0; }
.about2-final-number strong { color: #fff; font-size: 34px; letter-spacing: -.045em; }
.about2-final-number span { color: rgba(255,255,255,.55); font-size: 14px; }
.about2-route { margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.12); list-style: none; }
.about2-route li { min-height: 72px; display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 9px; border-bottom: 1px solid rgba(255,255,255,.12); }
.about2-route li > span { color: #91a7ff; font-size: 14px; font-weight: 800; }
.about2-route li div { display: grid; gap: 2px; }
.about2-route li strong { font-size: 14px; }
.about2-route li small { color: rgba(255,255,255,.45); font-size: 14px; }
.about2-route li > b { color: #fff; font-size: 14px; }
.about2-funnel > p { margin: 20px 0 0; color: rgba(255,255,255,.42); font-size: 14px; line-height: 1.6; }
.about2-overview,
.about2-stages { padding: 116px clamp(8px,3vw,34px); }
.about2-section-heading { max-width: 900px; }
.about2-section-heading h2 { margin: 0; font-size: clamp(40px,4.8vw,62px); font-weight: 670; line-height: 1.02; letter-spacing: -.055em; }
.about2-section-heading > p:last-child { max-width: 680px; margin: 22px 0 0; color: var(--app-muted); font-size: 16px; line-height: 1.7; }
.about2-principles { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 56px; border-top: 1px solid var(--app-line-strong); border-bottom: 1px solid var(--app-line-strong); }
.about2-principles article { min-height: 240px; padding: 28px; border-right: 1px solid var(--app-line); }
.about2-principles article:first-child { padding-left: 0; }
.about2-principles article:last-child { border-right: 0; }
.about2-principles article > span { color: var(--app-accent); font-size: 14px; font-weight: 800; }
.about2-principles h3 { margin: 66px 0 10px; font-size: 20px; }
.about2-principles p { margin: 0; color: var(--app-muted); font-size: 14px; line-height: 1.7; }
.about2-section-heading-split { max-width: none; display: grid; grid-template-columns: 1fr minmax(280px,430px); align-items: end; gap: 60px; }
.about2-section-heading-split > p:last-child { margin: 0; }
.about2-stage-list { margin: 52px 0 0; padding: 0; border-top: 1px solid var(--app-line-strong); list-style: none; }
.about2-stage-list > li { min-height: 224px; display: grid; grid-template-columns: 70px minmax(0,1fr) minmax(300px,380px); align-items: center; gap: 30px; padding: 38px 0; border-bottom: 1px solid var(--app-line); }
.about2-stage-number { width: 48px; height: 48px; display: grid; place-items: center; align-self: start; border: 1px solid rgba(49,87,232,.18); border-radius: 14px; background: var(--app-accent-soft); color: var(--app-accent); font-size: 17px; font-weight: 800; letter-spacing: -.02em; }
.about2-stage-copy small { color: var(--app-muted); font-size: 14px; font-weight: 750; letter-spacing: .07em; text-transform: uppercase; }
.about2-stage-copy h3 { margin: 10px 0 13px; font-size: 30px; letter-spacing: -.04em; }
.about2-stage-copy p { max-width: 640px; margin: 0; color: var(--app-muted); font-size: 15px; line-height: 1.7; }
.about2-stage-list dl { margin: 0; }
.about2-stage-list dl div { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding: 15px 0; border-bottom: 1px solid var(--app-line); }
.about2-stage-list dt { color: var(--app-muted); font-size: 14px; line-height: 1.4; }
.about2-stage-list dd { margin: 0; color: var(--app-ink); font-size: 14px; font-weight: 750; line-height: 1.4; text-align: right; }
.about2-scoring { display: grid; grid-template-columns: repeat(2,1fr) 1.3fr; gap: 0; margin-top: 16px; overflow: hidden; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.about2-scoring > * { min-height: 140px; display: flex; justify-content: center; flex-direction: column; margin: 0; padding: 24px; border-right: 1px solid var(--app-line); }
.about2-scoring > *:last-child { border-right: 0; }
.about2-scoring span,
.about2-scoring small { color: var(--app-muted); font-size: 14px; }
.about2-scoring strong { margin: 7px 0; font-size: 25px; letter-spacing: -.04em; }
.about2-scoring p { color: var(--app-muted); font-size: 14px; line-height: 1.65; }
.about2-sources { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; margin: 0 0 24px; padding: 54px; border: 0; border-radius: var(--app-radius-lg); background: #fff; box-shadow: var(--app-shadow-sm); }
.about2-sources h2 { margin: 0; font-size: 38px; letter-spacing: -.045em; }
.about2-sources nav { display: grid; border-top: 1px solid var(--app-line); }
.about2-sources nav a { display: flex; justify-content: space-between; padding: 16px 0; border-bottom: 1px solid var(--app-line); color: var(--app-ink); font-size: 14px; font-weight: 680; text-decoration: none; }
.about2-sources nav a::after { color: var(--app-accent); content: "↗"; }
.about2-legal { color: var(--app-muted-light); font-size: 14px; line-height: 1.65; }

.about2-founder { min-height: 700px; display: grid; grid-template-columns: minmax(300px,.65fr) minmax(0,1.1fr); align-items: center; gap: clamp(60px,9vw,130px); padding: clamp(70px,9vw,120px) clamp(8px,3vw,34px); }
.about2-founder-mark { aspect-ratio: 1; display: grid; place-items: center; position: relative; overflow: hidden; border-radius: var(--app-radius-lg); background: linear-gradient(145deg,#151a2a,#0e111a); box-shadow: 0 30px 80px rgba(18,25,47,.22); color: #fff; }
.about2-founder-mark > span { font-size: clamp(74px,10vw,142px); font-weight: 720; letter-spacing: -.08em; opacity: .28; }
.about2-founder-mark > div { position: absolute; right: 28px; bottom: 28px; display: grid; }
.about2-founder-mark strong { font-size: 38px; letter-spacing: -.05em; }
.about2-founder-mark small { color: #91a7ff; font-size: 14px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.about2-founder-copy { max-width: 680px; }
.about2-founder-copy h1 { margin: 0; font-size: clamp(46px,5.5vw,72px); font-weight: 690; line-height: 1; letter-spacing: -.06em; }
.about2-founder-lead { margin: 27px 0 0; color: var(--app-ink); font-size: 17px; font-weight: 620; line-height: 1.65; }
.about2-founder-copy > p:not(.about2-eyebrow):not(.about2-founder-lead) { margin: 18px 0 0; color: var(--app-muted); font-size: 14px; line-height: 1.8; }
.about2-signature { display: grid; gap: 3px; margin-top: 30px; padding-top: 19px; border-top: 1px solid var(--app-line); }
.about2-signature strong { font-size: 14px; }
.about2-signature span { color: var(--app-muted); font-size: 14px; }
.about2-contact { scroll-margin-top: 88px; padding: 108px clamp(8px,3vw,34px) 24px; border-top: 1px solid var(--app-line-strong); }
.about2-contact .contact-title { margin-bottom: 42px; }
.about2-contact .contact-title h2 { margin: 0; font-size: clamp(48px,5.6vw,72px); font-weight: 690; letter-spacing: -.06em; }
.about2-contact .contact-option h3 { margin: 12px 0 8px; font-size: 25px; letter-spacing: -.04em; }

.contact-main { width: min(calc(100% - 48px), 1040px); padding: 92px 0 110px; }
.contact-title { max-width: 760px; margin-bottom: 48px; }
.contact-title > p { color: var(--app-accent); font-size: 14px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.contact-title h1 { margin: 0; font-size: clamp(52px,6vw,76px); font-weight: 690; letter-spacing: -.06em; }
.contact-title > span { display: block; max-width: 650px; margin-top: 20px; color: var(--app-muted); font-size: 15px; line-height: 1.75; }
.contact-options { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.contact-option { min-height: 250px; display: flex; align-items: flex-start; justify-content: space-between; flex-direction: column; padding: 32px; border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.contact-option > div > p { color: var(--app-accent); font-size: 14px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.contact-option h2 { margin: 12px 0 8px; font-size: 25px; letter-spacing: -.04em; }
.contact-option span { color: var(--app-muted); font-size: 14px; }
.contact-option a { min-height: 42px; display: inline-flex; align-items: center; margin-top: 30px; padding: 0 14px; border: 1px solid var(--app-line-strong); border-radius: 10px; color: var(--app-ink); font-size: 14px; font-weight: 700; text-decoration: none; }
.contact-option a.contact-primary { border-color: var(--app-accent); background: var(--app-accent); color: #fff; }
.contact-note { display: grid; gap: 6px; margin-top: 16px; padding: 20px 22px; border: 0; border-radius: 13px; background: var(--app-accent-soft); }
.contact-note strong { color: var(--app-accent-hover); font-size: 14px; }
.contact-note span { color: #5e6680; font-size: 14px; }

/* Profile -------------------------------------------------------------- */
.state-screen { min-height: 100vh; display: grid; align-content: center; justify-items: center; gap: 12px; padding: 24px; background: var(--app-canvas); }
.state-loading-copy { margin: 0; color: var(--app-muted); font-size: 14px; }
.state-panel { width: min(100%,560px); padding: 42px; border: 0; border-radius: var(--app-radius-lg); background: #fff; box-shadow: var(--app-shadow); text-align: center; }
.state-panel .brand-mark { color: var(--app-accent); }
.profile-app { min-height: 100vh; }
.topbar-account { min-width: 0; display: flex; align-items: center; gap: 8px; color: var(--app-muted); font-size: 14px; }
.topbar-avatar,
.topbar-initials { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; background: var(--app-accent); color: #fff; object-fit: cover; font-size: 14px; font-weight: 800; }
.topbar-account > span:last-child { max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-layout { width: min(calc(100% - 48px),1180px); min-height: calc(100vh - 72px); display: grid; grid-template-columns: 220px minmax(0,1fr); gap: 0; margin: 0 auto; }
.profile-nav { position: sticky; top: 72px; height: calc(100vh - 72px); display: flex; flex-direction: column; padding: 42px 24px 32px 0; border: 0; border-right: 1px solid var(--app-line); }
.profile-tab,
.logout-btn { min-height: 42px; padding: 0 12px; border: 0; border-radius: 9px; background: transparent; color: var(--app-muted); font-size: 14px; font-weight: 680; text-align: left; cursor: pointer; }
.profile-tab:hover { background: rgba(255,255,255,.65); color: var(--app-ink); }
.profile-tab.active { background: #fff; color: var(--app-accent); box-shadow: var(--app-shadow-sm); }
.logout-btn { margin-top: auto; color: var(--app-danger); }
.profile-content { min-width: 0; padding: 64px 0 100px 54px; }
.profile-view { max-width: 850px; }
.view-header { margin-bottom: 38px; }
.view-header h1 { margin: 0; font-size: clamp(40px,5vw,58px); letter-spacing: -.055em; }
.identity-row { min-height: 130px; display: flex; align-items: center; gap: 18px; padding: 26px; border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.profile-avatar,
.profile-initials { width: 66px; height: 66px; display: grid; place-items: center; border-radius: 18px; background: var(--app-accent); color: #fff; object-fit: cover; font-size: 18px; font-weight: 800; }
.identity-row > div:last-child { display: grid; gap: 4px; }
.identity-row strong { font-size: 19px; }
.identity-row span { color: var(--app-muted); font-size: 14px; }
.detail-list { margin-top: 16px; padding: 8px 24px; border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.detail-list div { display: flex; justify-content: space-between; gap: 24px; padding: 17px 0; border-bottom: 1px solid var(--app-line); }
.detail-list div:last-child { border-bottom: 0; }
.detail-list dt { color: var(--app-muted); font-size: 14px; }
.detail-list dd { margin: 0; color: var(--app-ink); font-size: 14px; font-weight: 700; text-align: right; }
.subscription-summary,
.redeem-tool,
.admin-generator { padding: 28px; border: 0; border-radius: var(--app-radius); background: #fff; box-shadow: var(--app-shadow-sm); }
.subscription-summary { display: grid; grid-template-columns: 1fr auto; gap: 28px; }
.subscription-summary h2 { margin: 12px 0 5px; }
.subscription-summary p,
.redeem-tool p { color: var(--app-muted); }
.status-badge { display: inline-flex; padding: 6px 8px; border: 0; border-radius: 7px; background: var(--app-success-soft); color: var(--app-success); font-size: 14px; font-weight: 800; }
.status-badge.inactive { background: var(--app-danger-soft); color: var(--app-danger); }
.plan-price { display: grid; align-content: start; justify-items: end; }
.plan-price strong { font-size: 24px; }
.plan-price span { color: var(--app-muted); font-size: 14px; }
.button-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.redeem-tool { margin-top: 28px; }
.inline-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: 16px; }
.inline-form input { min-width: 0; padding: 0 12px; }
.admin-heading { display: flex; justify-content: space-between; gap: 20px; }
.admin-field-grid { gap: 14px; }
.admin-generator input { padding: 0 11px; }
.new-code-result { border: 0; border-radius: 13px; background: var(--app-accent-soft); }
.code-item { border: 1px solid var(--app-line); border-radius: 13px; background: #fff; box-shadow: none; }

/* Standalone status pages --------------------------------------------- */
body.success-page,
body.system-page { background: var(--app-canvas); color: var(--app-ink); }
.success-page .card,
.system-page main { width: min(100%,560px); padding: 42px; border: 0; border-radius: var(--app-radius-lg); background: #fff; box-shadow: var(--app-shadow); }
.success-page .card { text-align: center; }
.success-page .btn,
.system-page a { border-radius: 10px; background: var(--app-accent); box-shadow: 0 10px 24px rgba(49,87,232,.18); }
.success-page .note { border: 0; border-radius: 11px; background: var(--app-paper-soft); }

/* Responsive ----------------------------------------------------------- */
@media (max-width: 1120px) {
  .primary-navigation > a,
  .topbar-nav > a { padding: 0 8px; font-size: 14px; }
  .site-header-inner,
  .topbar-inner { grid-template-columns: minmax(130px,1fr) auto minmax(130px,1fr); }
  .home-hero,
  .offer-hero,
  .academy-marketing-hero,
  .about2-hero { grid-template-columns: minmax(0,1fr) 390px; gap: 42px; }
}

@media (max-width: 930px) {
  .site-header,
  .topbar { padding: 0 18px; }
  .site-header-inner,
  .topbar-inner { height: 66px; grid-template-columns: 1fr auto; }
  .primary-navigation,
  .topbar-nav { display: none; }
  #menuContainer { display: block; }
  .header-actions,
  .topbar-actions { grid-column: 2; }
  .nav-active-indicator { display: none; }
  .home-hero,
  .offer-hero,
  .academy-marketing-hero,
  .about2-hero { grid-template-columns: 1fr; }
  .home-feature-showcase,
  .pricing-card,
  .academy-volume-card,
  .about2-funnel { width: min(100%,620px); }
  .quiz-launch { grid-template-columns: 1fr; }
  .quiz-launch-main {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    padding: 44px;
  }
  .olympiad-blueprint {
    grid-template-columns: repeat(2, 1fr);
    align-self: auto;
    margin-top: 24px;
  }
  .olympiad-blueprint > div { padding: 17px 20px 17px 0; }
  .olympiad-blueprint > div + div { padding-left: 20px; border-top: 0; border-left: 1px solid var(--app-line); }
  .test-specs { margin-top: 18px; padding-top: 16px; }
  .quiz-launch-main #startBtn { align-self: flex-end; min-width: 176px; margin: 22px 0 0 auto; }
  .quiz-launch-aside.quiz-generator { border-radius: var(--app-radius-lg); }
  .academy-heading { grid-template-columns: 1fr; gap: 24px; }
  .academy-layout { grid-template-columns: 1fr; }
  .academy-sidebar { position: static; }
  .academy-module-list { display: none; }
  .academy-module-select { display: grid; }
  .about2-section-heading-split { grid-template-columns: 1fr; gap: 22px; }
  .about2-stage-list > li { grid-template-columns: 58px minmax(0,1fr); }
  .about2-stage-list dl { grid-column: 2; }
  .about2-founder { grid-template-columns: 280px minmax(0,1fr); gap: 48px; }
  .profile-layout { grid-template-columns: 180px minmax(0,1fr); }
  .profile-content { padding-left: 36px; }
}

@media (max-width: 720px) {
  .site-header,
  .topbar { padding: 0 14px; }
  .site-brand span,
  .brand-link span { font-size: 14px; }
  .header-login,
  .nav-login-button { min-height: 38px; padding: 0 12px; font-size: 14px; }
  .site-footer,
  .contact-footer { width: calc(100% - 32px); grid-template-columns: 1fr; gap: 14px; }
  .site-footer .footer-brand,
  .contact-footer .footer-brand,
  .site-footer .footer-disclaimer,
  .contact-footer .footer-disclaimer,
  .site-footer .footer-legal,
  .contact-footer .footer-legal { grid-column: 1; grid-row: auto; }
  .site-footer .footer-legal,
  .contact-footer .footer-legal { margin-top: 0; }
  .home-page,
  .quiz-page,
  .content-page,
  .academy-page,
  .about2-page,
  .contact-main { width: calc(100% - 24px); }
  .home-hero,
  .offer-hero,
  .academy-marketing-hero,
  .about2-hero { width: 100%; min-height: 0; margin-top: 0; padding: 54px 8px 40px; }
  .home-hero h1,
  .offer-hero h1,
  .academy-marketing-copy h1,
  .about2-hero-copy h1 { font-size: clamp(43px,13vw,60px); }
  .home-feature-showcase,
  .pricing-card,
  .academy-volume-card,
  .about2-funnel { padding: 24px; border-radius: 22px; }
  .home-metrics,
  .offer-proof { width: calc(100% - 16px); grid-template-columns: 1fr; padding: 20px 0; }
  .home-metrics > div,
  .home-metrics > div:first-child,
  .offer-proof > div,
  .offer-proof > div:first-child { min-height: 86px; padding: 0; border-right: 0; border-bottom: 1px solid var(--app-line); }
  .home-metrics > div:last-child,
  .offer-proof > div:last-child { border-bottom: 0; }
  .home-process,
  .benefits-section,
  .academy-curriculum,
  .academy-experience { width: calc(100% - 16px); padding: 82px 0; }
  .home-process ol,
  .about2-principles { grid-template-columns: 1fr; }
  .home-process li,
  .home-process li:first-child,
  .about2-principles article,
  .about2-principles article:first-child { min-height: auto; padding: 26px 0; border-right: 0; border-bottom: 1px solid var(--app-line); }
  .about2-principles article:last-child { border-bottom: 0; }
  .home-process h3,
  .about2-principles h3 { margin-top: 28px; }
  .home-end-grid,
  .benefit-grid,
  .contact-options { grid-template-columns: 1fr; }
  .home-cta,
  .home-links,
  .learning-path,
  .offer-final,
  .academy-final-cta { border-radius: 22px; }
  .offer-hero-actions,
  .academy-marketing-actions,
  .about2-actions { align-items: stretch; flex-direction: column; }
  .offer-hero-actions > *,
  .academy-marketing-actions > *,
  .about2-actions > * { width: 100%; }
  .benefit-grid { gap: 10px; }
  .benefit-grid article { min-height: 240px; }
  .academy-proof { grid-template-columns: repeat(2,1fr); }
  .quiz-page { padding-top: 42px; }
  .quiz-workspace.container { border-radius: 0; }
  .quiz-workspace.container::before,
  .quiz-launch-aside.quiz-generator { border-radius: 20px; }
  .quiz-launch-aside.quiz-generator { margin-top: 18px; }
  .quiz-launch-main { padding: 38px 24px 42px; }
  .quiz-launch-aside.quiz-generator { padding: 38px 24px; }
  .olympiad-blueprint { grid-template-columns: 1fr; }
  .olympiad-blueprint > div { padding-right: 0; }
  .olympiad-blueprint > div + div { padding-left: 0; border-top: 1px solid var(--app-line); border-left: 0; }
  .quiz-launch-main #startBtn { width: 100%; min-width: 0; }
  #quizBox { padding: 32px 22px 40px; }
  .question-meta { align-items: flex-start; flex-direction: column; }
  .question-text { font-size: 22px; }
  .quiz-actions { align-items: stretch; flex-direction: row; }
  .quiz-actions #aiContainer,
  .quiz-actions #nextBtn { width: auto; flex: 1 1 0; }
  .quiz-actions #askAiBtn { width: 100%; }
  .quiz-actions #nextBtn { margin-left: 0; }
  .features-list { grid-template-columns: 1fr; }
  .metric-band { grid-template-columns: repeat(2,1fr); }
  .metric-item:nth-child(2) { border-right: 0; }
  .metric-item:nth-child(-n+2) { border-bottom: 1px solid var(--app-line); }
  .review-library { grid-template-columns: 1fr; }
  .analytics-section { padding: 24px 20px; }
  .academy-reader { padding: 30px 22px; }
  .about2-overview,
  .about2-stages { padding: 82px 8px; }
  .about2-stage-list > li { grid-template-columns: 52px 1fr; gap: 16px; }
  .about2-stage-list dl { grid-column: 1 / -1; }
  .about2-scoring { grid-template-columns: 1fr; }
  .about2-scoring > * { min-height: 120px; border-right: 0; border-bottom: 1px solid var(--app-line); }
  .about2-scoring > *:last-child { border-bottom: 0; }
  .about2-sources { grid-template-columns: 1fr; gap: 30px; padding: 32px 24px; }
  .about2-founder { grid-template-columns: 1fr; padding: 64px 8px 84px; }
  .about2-founder-mark { width: min(100%,430px); }
  .about2-contact { padding: 72px 8px 8px; }
  .contact-main { padding: 72px 0 88px; }
  .profile-layout { width: 100%; display: block; }
  .profile-nav { position: sticky; z-index: 20; top: 66px; width: 100%; height: auto; flex-direction: row; gap: 4px; overflow-x: auto; padding: 10px 14px; border-right: 0; border-bottom: 1px solid var(--app-line); background: rgba(245,246,248,.94); backdrop-filter: blur(14px); }
  .profile-tab { flex: 0 0 auto; }
  .logout-btn { margin: 0 0 0 auto; flex: 0 0 auto; }
  .profile-content { padding: 48px 16px 88px; }
  .subscription-summary { grid-template-columns: 1fr; }
  .plan-price { justify-items: start; }
}

@media (max-width: 430px) {
  .site-brand-mark,
  .topbar-brand-mark { width: 32px; height: 32px; flex-basis: 32px; }
  .site-brand span,
  .brand-link span { display: none; }
  .home-actions { align-items: stretch; flex-direction: column; }
  .home-button { width: 100%; }
  .home-feature-list > a { grid-template-columns: 52px 1fr; }
  .home-feature-icon { width: 48px; height: 48px; }
  .home-feature-icon img { width: 40px; height: 40px; }
  .quiz-workspace-header { padding: 0 18px; }
  .quiz-score-display { margin-left: 0; }
  .quiz-set-display { flex: 1; }
  #answers button { grid-template-columns: 30px 1fr; gap: 10px; padding: 12px; font-size: 14px; }
  .answer-letter { width: 29px; height: 29px; }
  .auth-card,
  .verification-card,
  .paywall-card { padding: 25px 20px; border-radius: 18px; }
  #paywallOverlay .paywall-card { padding: 18px 20px 14px; }
  .paywall-header { margin-bottom: 10px; }
  .paywall-header h2 { font-size: 20px; line-height: 1.2; }
  .premium-badge { margin-bottom: 6px; }
  .features-list { gap: 0; margin: 10px 0; }
  .features-list li { padding: 5px 0; font-size: 13px; line-height: 1.3; }
  .price-box { margin-bottom: 8px; padding: 12px; }
  .price-amount { font-size: 38px; }
  .subscribe-btn { min-height: 42px; margin-top: 6px; }
  .code-input-row,
  .inline-form { grid-template-columns: 1fr; }
  #paywallOverlay .code-input-row { grid-template-columns: minmax(0, 1fr) 92px; }
  .contact-title h1 { font-size: 48px; }
  .about2-contact .contact-title h2 { font-size: 48px; }
  .contact-option { padding: 26px 22px; }
  .detail-list div { align-items: flex-start; flex-direction: column; gap: 5px; }
  .detail-list dd { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* Monochrome liquid-glass direction ---------------------------------- */
:root {
  /* Neutralize the legacy quiz theme as well as the shared application tokens. */
  --bg: #f0f0ee;
  --surface: rgba(255, 255, 255, 0.68);
  --surface-raised: rgba(255, 255, 255, 0.56);
  --border: rgba(0, 0, 0, 0.16);
  --border-subtle: rgba(0, 0, 0, 0.09);
  --glass-border: rgba(255, 255, 255, 0.88);
  --accent: #111111;
  --accent-hover: #000000;
  --focus: #111111;
  --accent-glow: rgba(0, 0, 0, 0.18);
  --silver: #bcbcbc;
  --silver-hover: #dedede;
  --silver-glow: rgba(0, 0, 0, 0.10);
  --text-primary: #151515;
  --text-secondary: #535353;
  --text-muted: #787878;
  --correct: #111111;
  --correct-bg: rgba(0, 0, 0, 0.065);
  --wrong: #666666;
  --wrong-bg: rgba(0, 0, 0, 0.045);
  --neutral: #c9c9c9;
  --neutral-bg: rgba(0, 0, 0, 0.04);
  --app-canvas: #f0f0ee;
  --app-paper: rgba(255, 255, 255, 0.82);
  --app-paper-soft: rgba(0, 0, 0, 0.045);
  --app-ink: #050505;
  --app-ink-soft: #202020;
  --app-muted: #666666;
  --app-muted-light: #8c8c8c;
  --app-line: rgba(0, 0, 0, 0.09);
  --app-line-strong: rgba(0, 0, 0, 0.16);
  --app-accent: #080808;
  --app-accent-hover: #000000;
  --app-accent-soft: rgba(0, 0, 0, 0.055);
  --app-success: #111111;
  --app-success-soft: rgba(0, 0, 0, 0.065);
  --app-danger: #4b4b4b;
  --app-danger-soft: rgba(0, 0, 0, 0.045);
  --app-radius-sm: 12px;
  --app-radius: 22px;
  --app-radius-lg: 30px;
  --app-shadow-sm: 0 1px 0 rgba(255, 255, 255, 0.92) inset, 0 12px 34px rgba(0, 0, 0, 0.055);
  --app-shadow: 0 1px 0 rgba(255, 255, 255, 0.92) inset, 0 28px 80px rgba(0, 0, 0, 0.10);
  --glass-regular: rgba(255, 255, 255, 0.68);
  --glass-strong: rgba(255, 255, 255, 0.82);
  --glass-edge: rgba(255, 255, 255, 0.88);
  --glass-dark: rgba(7, 7, 7, 0.93);
  --glass-shadow: 0 1px 0 rgba(255, 255, 255, 0.95) inset, 0 -1px 0 rgba(0, 0, 0, 0.035) inset, 0 24px 70px rgba(0, 0, 0, 0.085);
}

html { background: #f0f0ee; }

body,
body:not(.about-body),
.home-body,
body.offer-body,
.academy-marketing-body,
.about-body.about-v2,
body.success-page,
body.system-page {
  background:
    radial-gradient(920px 520px at 8% -10%, #ffffff 0%, rgba(255, 255, 255, 0) 68%),
    radial-gradient(760px 500px at 96% 8%, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0) 72%),
    linear-gradient(145deg, #f5f5f3 0%, #ececea 100%);
  color: var(--app-ink);
  font-family: var(--app-font);
  font-kerning: normal;
}

:where(a, button, input, select, summary):focus-visible {
  outline: 2px solid #050505;
  outline-offset: 3px;
}

::selection { background: rgba(0, 0, 0, 0.14); }

/* Floating navigation is the primary liquid-glass layer. */
.site-header,
.topbar {
  top: 10px;
  padding: 0 20px;
  border: 0;
  background: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.site-header-inner,
.topbar-inner {
  height: 60px;
  padding: 0 10px 0 14px;
  border: 1px solid var(--glass-edge);
  border-radius: 22px;
  background: var(--glass-regular);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: blur(28px) saturate(1.35);
  backdrop-filter: blur(28px) saturate(1.35);
}

.site-brand-mark,
.topbar-brand-mark {
  border-color: rgba(255, 255, 255, 0.9);
  border-radius: 11px;
  box-shadow: 0 1px 0 #fff inset, 0 4px 12px rgba(0, 0, 0, 0.08);
}

.primary-navigation,
.topbar-nav { gap: 5px; }

/* The rounded header is the only glass layer; clear legacy nav filtering. */
.primary-navigation,
.topbar-nav {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.primary-navigation > a,
.topbar-nav > a {
  flex: 0 0 auto;
  min-height: 36px;
  border-radius: 12px;
  color: #656565;
  white-space: nowrap;
  transition: color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.primary-navigation > a:hover,
.topbar-nav > a:hover { background: rgba(255, 255, 255, 0.58); color: #050505; }

.primary-navigation > a.active,
.primary-navigation > a.is-indicator-target,
.topbar-nav > a.active,
.topbar-nav > a.is-indicator-target {
  background: rgba(255, 255, 255, 0.76);
  color: #050505;
  box-shadow: 0 1px 0 #fff inset, 0 5px 14px rgba(0, 0, 0, 0.07);
}

.nav-active-indicator {
  top: calc(50% - 18px);
  bottom: auto;
  height: 36px;
  display: block;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 1px 0 #fff inset, 0 5px 14px rgba(0, 0, 0, 0.07);
}

.nav-indicator-animate .nav-active-indicator {
  transition:
    width 360ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 160ms ease;
}

.primary-navigation.nav-indicator-ready > a:hover,
.primary-navigation.nav-indicator-ready > a.active,
.primary-navigation.nav-indicator-ready > a.is-indicator-target,
.topbar-nav.nav-indicator-ready > a:hover,
.topbar-nav.nav-indicator-ready > a.active,
.topbar-nav.nav-indicator-ready > a.is-indicator-target {
  background: transparent;
  box-shadow: none;
}

.header-login,
.nav-login-button {
  min-height: 38px;
  padding: 0 16px;
  border-color: #050505;
  border-radius: 999px;
  background: #050505;
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.22) inset, 0 7px 16px rgba(0, 0, 0, 0.13);
}

.header-login:hover,
.nav-login-button:hover { border-color: #000; background: #000; }

.profile-icon-link,
#menuBtn,
.shell-menu-button {
  border-color: rgba(255, 255, 255, 0.86);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
  color: #111;
  box-shadow: 0 1px 0 #fff inset, 0 6px 16px rgba(0, 0, 0, 0.06);
  -webkit-backdrop-filter: blur(18px) saturate(1.25);
  backdrop-filter: blur(18px) saturate(1.25);
}
.site-header #menuBtn {
  border-color: rgba(255, 255, 255, 0.86);
  background: #f7f7f5;
  color: #111;
  box-shadow: 0 1px 0 #fff inset, 0 6px 16px rgba(0, 0, 0, 0.06);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.site-header #menuBtn .menu-glyph span { background: #111; }

#menuDropdown,
.shell-menu-dropdown {
  border-color: rgba(0, 0, 0, 0.14);
  border-radius: 20px;
  background: #f7f7f5;
  box-shadow: 0 1px 0 #fff inset, 0 24px 70px rgba(0, 0, 0, 0.2);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

#menuDropdown a:hover,
.shell-menu-dropdown a:hover { background: rgba(255, 255, 255, 0.7); }

/* Monochrome controls with restrained specular highlights. */
.page-eyebrow,
.eyebrow,
.home-eyebrow,
.offer-kicker,
.academy-marketing-eyebrow,
.quiz-eyebrow,
.quiz-launch-kicker,
.about2-eyebrow,
.contact-title > p,
.contact-option > div > p { color: #454545; }

.offer-kicker span { background: #111; }

.primary-link,
.primary-btn,
.home-button-primary,
.offer-button-primary,
.academy-marketing-button.is-dark,
.about2-button-primary,
.contact-option a.contact-primary,
#startBtn,
.email-auth-btn,
.checkout-btn,
.code-submit-btn {
  border-color: #050505;
  border-radius: var(--app-control-radius);
  background: #050505;
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.22) inset, 0 10px 24px rgba(0, 0, 0, 0.14);
}

.primary-link:hover,
.primary-btn:hover,
.home-button-primary:hover,
.offer-button-primary:hover,
.academy-marketing-button.is-dark:hover,
.about2-button-primary:hover,
.contact-option a.contact-primary:hover,
#startBtn:hover,
.email-auth-btn:hover,
.checkout-btn:hover,
.code-submit-btn:hover { border-color: #000; background: #000; }

.secondary-btn,
.quiet-btn:not(.danger-btn),
.home-button-secondary,
.offer-text-link,
.academy-marketing-button:not(.is-dark),
.about2-button-secondary,
.contact-option a:not(.contact-primary),
.google-btn,
.paywall-dismiss,
.auth-dismiss {
  border-color: var(--glass-edge);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: #111;
  box-shadow: 0 1px 0 #fff inset, 0 7px 18px rgba(0, 0, 0, 0.06);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
}

input,
select,
textarea {
  border-color: rgba(255, 255, 255, 0.9);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.62);
  color: #050505;
  box-shadow: 0 1px 0 #fff inset, 0 5px 16px rgba(0, 0, 0, 0.045);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
  backdrop-filter: blur(16px) saturate(1.15);
}

input:focus,
select:focus,
textarea:focus { border-color: rgba(0, 0, 0, 0.34); box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.06), 0 1px 0 #fff inset; }

/* Standard translucent content surfaces; glass stays strongest on controls. */
.analytics-loading,
.access-state,
.metric-band,
.analytics-section,
.academy-sidebar,
.academy-reader,
.contact-option,
.state-panel,
.identity-row,
.detail-list,
.subscription-summary,
.redeem-tool,
.admin-generator,
.about2-scoring,
.about2-sources,
.academy-proof {
  border: 1px solid var(--glass-edge);
  background: var(--glass-regular);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: blur(22px) saturate(1.18);
  backdrop-filter: blur(22px) saturate(1.18);
}

.home-feature-showcase,
.pricing-card,
.academy-volume-card,
.quiz-launch-aside.quiz-generator,
.academy-sample,
.learning-path,
.offer-final,
.academy-final-cta,
.home-cta,
.about2-funnel,
.about2-founder-mark {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(145deg, rgba(20, 20, 20, 0.97), rgba(0, 0, 0, 0.96));
  color: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.13) inset, 0 30px 80px rgba(0, 0, 0, 0.17);
}

.home-cta .home-eyebrow,
.about2-route li > span,
.about2-founder-mark small,
.generator-badge { color: rgba(255, 255, 255, 0.62); }

.home-showcase-cta,
.pricing-card .offer-button-dark,
.generator-primary { border-color: #fff; border-radius: 999px; background: #fff; color: #050505; }
.home-showcase-cta:hover,
.pricing-card .offer-button-dark:hover,
.generator-primary:hover { background: #e8e8e6; }

.benefit-grid article,
.contact-option,
.review-card,
.history-item,
.code-item {
  border: 1px solid var(--glass-edge) !important;
  background: rgba(255, 255, 255, 0.58);
  box-shadow: 0 1px 0 #fff inset, 0 12px 34px rgba(0, 0, 0, 0.055);
}

.benefit-visual,
.quiz-access-note,
.difficulty-pill,
.academy-overview span,
.new-code-result,
.verification-hint,
.contact-note,
.section-meta { background: rgba(0, 0, 0, 0.045); color: #3f3f3f; }

.quiz-access-note strong,
.contact-note strong,
.academy-overview span,
.module-number,
.about2-principles article > span,
.about2-stage-number,
.home-process li > span,
.academy-curriculum-list li > span,
.academy-experience-grid span,
.state-panel .brand-mark { color: #111; }

.pricing-card li::before { border-color: rgba(255, 255, 255, 0.7); }

/* Quiz alignment and monochrome answer states. */
.quiz-workspace.container { border-radius: 30px; }
.quiz-workspace-header { min-height: 72px; padding: 0 32px; }
.quiz-score-display strong { color: #050505; }
.quiz-workspace #quickRestart {
  width: 40px;
  height: 40px;
  border: 1px solid var(--glass-edge);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.56);
  color: #202020;
  box-shadow: 0 1px 0 #fff inset, 0 7px 18px rgba(0, 0, 0, 0.055);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.quiz-workspace #quickRestart:hover { background: rgba(255, 255, 255, 0.9); color: #000; }
.generator-badge,
.generator-segments,
.custom-picker-trigger,
.custom-picker-menu,
.generator-secondary { border-color: rgba(255, 255, 255, 0.18); }
.generator-segments button.is-selected { background: #fff; color: #050505; }
.custom-picker-menu { background: #0d0d0d; }
.question-meta { align-items: center; }
.save-review-button { color: #5f5f59; }
.save-review-button:hover { color: #111; }
.save-review-button.is-saved,
.save-review-button.is-saved:hover { color: #e4ad00; }
.difficulty-pill.is-hard { background: rgba(0, 0, 0, 0.08); color: #333; }
#answers button { border-color: rgba(0, 0, 0, 0.10); background: rgba(255, 255, 255, 0.56); }
#answers button:hover:not(:disabled) { border-color: rgba(0, 0, 0, 0.34); background: rgba(255, 255, 255, 0.84); }
.answer-letter { background: rgba(0, 0, 0, 0.055); color: #4a4a4a; }
#answers button.correct {
  border: 2px solid #159447 !important;
  background: #c9f7dc !important;
  color: #075c2a !important;
  box-shadow: 0 0 0 3px rgba(21, 148, 71, 0.10) !important;
}
#answers button.correct .answer-letter { background: #087a34 !important; color: #fff !important; }
#answers button.wrong {
  border: 2px solid #dc2626 !important;
  background: #ffd7d7 !important;
  color: #8f1111 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.10) !important;
}
#answers button.wrong .answer-letter { background: #c81e1e !important; color: #fff !important; }
#result { border-left-color: var(--app-success); background: #f3f8f5; color: #33443d; }

.overlay {
  background: rgba(238, 238, 236, 0.48);
  -webkit-backdrop-filter: blur(26px) saturate(1.15);
  backdrop-filter: blur(26px) saturate(1.15);
}

.auth-card,
.verification-card,
.paywall-card {
  border: 1px solid var(--glass-edge);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 1px 0 #fff inset, 0 34px 100px rgba(0, 0, 0, 0.18);
  -webkit-backdrop-filter: blur(32px) saturate(1.24);
  backdrop-filter: blur(32px) saturate(1.24);
}

.auth-tab.active { color: #050505; }
.premium-badge { background: rgba(0, 0, 0, 0.055); color: #333; }
.feature-check { background: #16865d; }
.feature-check::after { border-color: #fff; }
.price-box { background: #090909; }

/* Statistics and product pages use one alignment grid and avoid nested boxes. */
.content-page,
.academy-page { width: min(calc(100% - 48px), 1160px); }

.content-page { padding-top: 72px; }
.content-heading { max-width: 760px; margin-bottom: 42px; }
.content-heading h1 { font-size: clamp(42px, 5vw, 60px); line-height: 1.02; letter-spacing: -0.055em; }
.content-heading > p:last-child { max-width: 680px; margin-top: 18px; }

.analytics-loading,
.access-state { width: 100%; max-width: none; min-height: 260px; padding: 42px; }
.metric-band { border-radius: 22px; }
.metric-item { min-height: 124px; padding: 28px 30px; }

.analytics-section {
  margin-top: 18px;
  padding: 38px 40px 40px;
  border-radius: 26px;
}

.section-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 24px;
  margin-bottom: 24px;
}
.section-heading-row > div { min-width: 0; }
.section-heading-row h2 { font-size: 26px; line-height: 1.1; }
.section-heading-row .page-eyebrow { margin-bottom: 10px; }
.section-meta {
  align-self: end;
  margin-bottom: 1px;
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  box-shadow: 0 1px 0 #fff inset;
}
.section-intro { max-width: 720px; margin: -4px 0 26px; line-height: 1.7; }

.history-filters {
  width: max-content;
  max-width: 100%;
  display: inline-grid;
  grid-auto-flow: column;
  gap: 2px;
  margin: 0 0 24px;
  padding: 4px;
  border: 1px solid var(--glass-edge);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 1px 0 #fff inset, 0 8px 22px rgba(0, 0, 0, 0.05);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
}

.history-filters button {
  min-height: 36px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #4f4f4f;
  box-shadow: none;
}
.history-filters button:hover { background: rgba(255, 255, 255, 0.65); color: #050505; }
.history-filters button.is-selected { border-color: #050505; background: #050505; color: #fff; box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset; }

.history-list { display: grid; gap: 10px; }
.review-empty,
.history-empty {
  min-height: 190px;
  display: grid;
  align-content: center;
  justify-items: start;
  padding: 34px 0 12px;
  border: 0;
  border-top: 1px solid var(--app-line);
  border-radius: 0;
  background: transparent;
}
.history-empty h3 { font-size: 20px; letter-spacing: -0.025em; }
.history-empty p { max-width: 680px; margin: 8px 0 22px; line-height: 1.7; }
.history-empty .primary-link { margin: 0; }
.category-track { background: rgba(0, 0, 0, 0.06); }
.category-fill { background: #111; }
.history-item { border-radius: 16px; }
.history-summary:hover { background: rgba(255, 255, 255, 0.62); }
.answer-marker { border-color: #a0a0a0; color: #555; }
.answer-review.is-correct .answer-marker { border-color: #111; background: #111; color: #fff; }
.answer-review.is-wrong .answer-marker { border-color: #777; background: #777; color: #fff; }
.answer-review-content h4,
.history-stat strong { color: #222; }
.answer-category,
.answer-choice-lines .correct-choice { color: #111; }

/* Academy, profile, and status controls remain monochrome. */
.academy-module-button.active { background: rgba(0, 0, 0, 0.065); color: #050505; }
.academy-module-button.active .academy-module-number { color: #050505; }
.academy-section p,
.academy-section li { color: #5d5d5d; }
.profile-tab.active { background: rgba(255, 255, 255, 0.72); color: #050505; }
.topbar-avatar,
.topbar-initials,
.profile-avatar,
.profile-initials { background: #111; }
.status-badge,
.status-badge.inactive { background: rgba(0, 0, 0, 0.06); color: #222; }
.logout-btn,
.review-remove { color: #555 !important; }

/* Neutralize the few higher-specificity colors retained by legacy page files. */
.home-cta > p:not(.home-eyebrow) { color: rgba(255, 255, 255, 0.62); }
.offer-proof span,
.academy-proof span,
.academy-existing-access { color: #707070; }
.path-copy > p:last-child,
.learning-path li p,
.offer-final-action span,
.academy-final-cta p:not(.academy-marketing-eyebrow) { color: rgba(255, 255, 255, 0.62); }
.learning-path .offer-kicker,
.offer-final .offer-kicker,
.learning-path li > span,
.offer-final .offer-checkout-status,
.academy-sample .academy-marketing-eyebrow,
.academy-sample .academy-section-heading > p { color: rgba(255, 255, 255, 0.54); }
.offer-final .offer-checkout-status.is-error { color: rgba(255, 255, 255, 0.72); }
.academy-volume-card > p { color: rgba(255, 255, 255, 0.54); }
.academy-sample-window { background: #f8f8f8; }
.academy-sample-window > aside { background: #efefef; }
.academy-sample-window > aside > span,
.academy-sample-window > aside li,
.academy-sample-window > aside small,
.academy-sample-window > article > p:first-child,
.academy-sample-window article > p,
.academy-sample-window article > ol span,
.academy-sample-note span { color: #686868; }
.academy-sample-note { background: #ececec; }
.academy-curriculum-list li > span,
.academy-experience-grid span { color: #8b8b8b; }
.contact-title h1,
.academy-state h1 { color: #050505; }
.contact-title > span,
.contact-option div > span,
.contact-note span,
.academy-state > p:not(.page-eyebrow),
.academy-state-actions > a:not(.primary-link),
.state-panel p { color: #666; }

.success-page .card,
.system-page main {
  border: 1px solid var(--glass-edge);
  border-radius: 28px;
  background: var(--glass-strong);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: blur(26px) saturate(1.18);
  backdrop-filter: blur(26px) saturate(1.18);
}
.success-page .status-icon,
.success-page .status-icon.pending,
.success-page .status-icon.error {
  border-color: rgba(0, 0, 0, 0.16);
  background: rgba(0, 0, 0, 0.055);
  color: #111;
}
.success-page .status-icon::after { border-color: #111; }
.success-page .status-icon.pending::after { border-color: rgba(0, 0, 0, 0.18); border-top-color: #111; }
.success-page .status-icon.error::after { color: #333; }
.success-page #statusMessage,
.success-page #statusNote,
body.system-page p { color: #666; }
.success-page .btn,
.system-page a { border-color: #050505; border-radius: 999px; background: #050505; box-shadow: 0 10px 24px rgba(0, 0, 0, 0.14); }

@media (max-width: 1120px) {
  .site-header,
  .topbar { padding: 0 14px; }
  .site-header-inner,
  .topbar-inner { grid-template-columns: minmax(110px, 1fr) auto minmax(110px, 1fr); gap: 12px; }
  .primary-navigation,
  .topbar-nav { gap: 1px; }
  .primary-navigation > a,
  .topbar-nav > a { padding-right: 7px; padding-left: 7px; font-size: 14px; }
}

@media (max-width: 930px) {
  .site-header-inner,
  .topbar-inner { grid-template-columns: 1fr auto; }
}

@media (max-width: 720px) {
  .site-header,
  .topbar { top: 8px; padding: 0 10px; }
  .site-header-inner,
  .topbar-inner { height: 56px; padding: 0 8px 0 11px; border-radius: 20px; }
  .content-page,
  .academy-page { width: min(calc(100% - 24px), 1160px); }
  .content-page { padding-top: 50px; }
  .content-heading { margin-bottom: 30px; }
  .content-heading h1 { font-size: 39px; }
  .analytics-section { padding: 26px 22px 28px; border-radius: 22px; }
  .section-heading-row { grid-template-columns: minmax(0, 1fr) auto; gap: 12px; margin-bottom: 20px; }
  .section-heading-row h2 { font-size: 22px; }
  .section-meta { padding: 6px 8px; font-size: 14px; }
  .history-filters { width: 100%; grid-template-columns: repeat(4, minmax(max-content, 1fr)); overflow-x: auto; }
  .history-filters button { padding: 0 11px; }
  .review-empty,
  .history-empty { min-height: 170px; padding-top: 28px; }
  .quiz-workspace-header { padding: 0 20px; }
  .question-meta { align-items: flex-start; }
}

@media (max-width: 430px) {
  .header-login,
  .nav-login-button { min-height: 36px; padding: 0 13px; }
  .content-heading h1 { font-size: 35px; }
  .analytics-section { padding: 24px 18px 26px; }
  .section-heading-row { align-items: start; }
  .section-meta { margin-top: 2px; }
  .history-filters button { padding: 0 10px; font-size: 14px; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header-inner,
  .topbar-inner,
  #menuDropdown,
  .shell-menu-dropdown,
  .overlay,
  .auth-card,
  .verification-card,
  .paywall-card { background: #f7f7f5; -webkit-backdrop-filter: none; backdrop-filter: none; }
}

/* Legal navigation and privacy controls */
.footer-legal {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  margin-top: 10px;
  padding-top: 0;
  border-top: 0;
}
.footer-legal a,
.footer-legal button {
  padding: 0;
  border: 0;
  background: none;
  color: #555;
  font: inherit;
  font-size: 14px;
  text-decoration: underline;
  text-decoration-color: rgba(0, 0, 0, 0.25);
  text-underline-offset: 3px;
  cursor: pointer;
}
.footer-legal a:hover,
.footer-legal button:hover { color: #050505; text-decoration-color: currentColor; }

.cookie-consent,
.cookie-settings {
  position: fixed;
  inset: 0;
  z-index: 5000;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 18px;
  background: rgba(5, 5, 5, 0.34);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
body.cookie-layer-open { overflow: hidden; }
.cookie-consent[hidden],
.cookie-settings[hidden] { display: none; }
.cookie-consent { display: grid; align-items: end; }
.cookie-settings { display: grid; align-items: safe center; justify-items: center; }
.cookie-consent-card,
.cookie-settings-card {
  width: min(100%, 920px);
  max-height: calc(100dvh - 36px);
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 26px;
  background: rgba(250, 250, 248, 0.96);
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.24);
  scrollbar-width: thin;
  color: #111;
}
.cookie-consent-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 0 auto;
  padding: 26px 28px;
}
.cookie-consent-eyebrow {
  margin: 0 0 8px;
  color: #6b6b67;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.cookie-consent-copy h2,
.cookie-settings-heading h2 { margin: 0; color: #050505; font-size: 24px; line-height: 1.1; }
.cookie-consent-copy > p:not(.cookie-consent-eyebrow) { max-width: 680px; margin: 10px 0; color: #52524e; font-size: 14px; line-height: 1.55; }
.cookie-consent-copy a,
.cookie-settings-note a { color: #111; font-size: 14px; font-weight: 700; }
.cookie-consent-actions { display: grid; grid-template-columns: repeat(2, minmax(150px, 1fr)); gap: 9px; min-width: 0; }
.cookie-button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid #111;
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
}
.cookie-button-primary { background: #050505; color: #fff; }
.cookie-button-secondary { background: #fff; color: #111; }
.cookie-settings-link {
  position: static;
  grid-column: 1 / -1;
  justify-self: center;
  padding: 6px;
  border: 0;
  background: none;
  color: #555;
  font: inherit;
  font-size: 14px;
  text-decoration: underline;
  white-space: nowrap;
  cursor: pointer;
}
.cookie-settings-card { padding: 26px; }
.cookie-settings-heading { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 20px; }
.cookie-settings-close { width: 38px; height: 38px; border: 1px solid rgba(0,0,0,.12); border-radius: 50%; background: #fff; color: #111; cursor: pointer; }
.cookie-settings-close,
.checkout-dialog-close,
.paywall-dismiss,
.auth-dismiss {
  display: grid;
  place-items: center;
  padding: 0;
  font-size: 0;
  line-height: 0;
}
.cookie-settings-close::before,
.cookie-settings-close::after,
.checkout-dialog-close::before,
.checkout-dialog-close::after,
.paywall-dismiss::before,
.paywall-dismiss::after,
.auth-dismiss::before,
.auth-dismiss::after {
  grid-area: 1 / 1;
  width: 14px;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  content: "";
}
.cookie-settings-close::before,
.checkout-dialog-close::before,
.paywall-dismiss::before,
.auth-dismiss::before { transform: rotate(45deg); }
.cookie-settings-close::after,
.checkout-dialog-close::after,
.paywall-dismiss::after,
.auth-dismiss::after { transform: rotate(-45deg); }
.cookie-setting-row { display: flex; gap: 24px; align-items: center; justify-content: space-between; padding: 18px 0; border-top: 1px solid rgba(0,0,0,.1); }
.cookie-setting-row strong { display: block; margin-bottom: 4px; font-size: 15px; }
.cookie-setting-row p { margin: 0; color: #666; font-size: 14px; line-height: 1.45; }
.cookie-setting-row input {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  min-width: 22px;
  min-height: 22px;
  flex: 0 0 22px;
  display: grid;
  place-content: center;
  margin: 0;
  padding: 0;
  border: 1.5px solid #a8a8a2;
  border-radius: 5px;
  background: #fff;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  cursor: pointer;
}
.cookie-setting-row input:checked {
  border-color: #050505;
  background: #050505 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 10'%3E%3Cpath d='M1 5l3 3 7-7' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px 10px no-repeat;
}
.cookie-setting-row input:focus-visible { outline: 3px solid rgba(0, 0, 0, 0.18); outline-offset: 3px; }
.cookie-required-badge { padding: 6px 9px; border-radius: 999px; background: #ecece8; color: #4b4b47; font-size: 14px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.cookie-settings-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
.cookie-settings-note { margin: 14px 0 0; color: #666; font-size: 14px; text-align: center; }

@media (max-width: 760px) {
  .cookie-consent-card { padding: 22px; border-radius: 22px; }
}
@media (max-height: 500px) and (min-width: 431px) {
  .cookie-settings-card { padding-block: 18px; }
  .cookie-settings-heading { margin-bottom: 14px; }
  .cookie-setting-row { padding-block: 14px; }
  .cookie-settings-actions { margin-top: 14px; }
  .cookie-settings-note { margin-top: 10px; }
}
@media (max-width: 430px) {
  .cookie-consent,
  .cookie-settings { padding: 10px; }
  .cookie-consent-card,
  .cookie-settings-card { max-height: calc(100dvh - 20px); }
  .cookie-consent-actions,
  .cookie-settings-actions { grid-template-columns: 1fr; }
  .cookie-settings-link { grid-column: auto; }
  .cookie-consent-copy h2,
  .cookie-settings-heading h2 { font-size: 21px; }
  .cookie-setting-row { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .cookie-consent *,
  .cookie-settings * { scroll-behavior: auto !important; transition: none !important; }
}

/* Silver glass navigation and vacuum-pull authentication toggle. */
.site-header-inner,
.topbar-inner {
  border-color: rgba(255, 255, 255, 0.92);
  background:
    linear-gradient(112deg,
      rgba(255, 255, 255, 0.82) 0%,
      rgba(220, 225, 229, 0.66) 34%,
      rgba(248, 249, 250, 0.76) 58%,
      rgba(198, 205, 211, 0.62) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.98),
    inset 0 -1px 0 rgba(93, 103, 112, 0.11),
    0 18px 48px rgba(39, 47, 54, 0.13),
    0 3px 10px rgba(55, 64, 72, 0.07);
  -webkit-backdrop-filter: blur(34px) saturate(0.86) contrast(1.04);
  backdrop-filter: blur(34px) saturate(0.86) contrast(1.04);
}

.site-brand-mark,
.contact-brand-mark,
.topbar-brand-mark {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  object-fit: contain;
  filter: none;
  mix-blend-mode: normal;
}

.auth-logo {
  object-fit: contain;
  filter: none;
  mix-blend-mode: normal;
}

.auth-tabs {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid rgba(100, 109, 118, 0.13);
  background: rgba(184, 191, 198, 0.2);
  box-shadow:
    inset 0 1px 2px rgba(75, 84, 92, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.auth-tabs::before {
  z-index: 0;
  border-color: rgba(255, 255, 255, 0.9);
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.94), rgba(220, 225, 229, 0.82));
  box-shadow:
    inset 0 1px 0 #fff,
    0 5px 14px rgba(43, 52, 60, 0.15),
    0 1px 3px rgba(43, 52, 60, 0.1);
  will-change: transform;
}

.auth-tab,
.auth-tab.active {
  position: relative;
  z-index: 1;
  background: transparent !important;
  box-shadow: none !important;
  transition: color 220ms ease, transform 380ms cubic-bezier(0.22, 1, 0.36, 1);
}

.auth-tabs.vacuum-to-register::before {
  animation: authVacuumRight 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
  transform-origin: right center;
}

.auth-tabs.vacuum-to-login::before {
  animation: authVacuumLeft 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
  transform-origin: left center;
}

.auth-tabs.vacuum-to-register .auth-tab:first-child,
.auth-tabs.vacuum-to-login .auth-tab:last-child {
  transform: scale(0.98);
}

@keyframes authVacuumRight {
  0% { transform: translate3d(0, 0, 0) scaleX(1); }
  34% { transform: translate3d(20%, 0, 0) scaleX(1.3); }
  68% { transform: translate3d(86%, 0, 0) scaleX(0.76); }
  100% { transform: translate3d(calc(100% + 2px), 0, 0) scaleX(1); }
}

@keyframes authVacuumLeft {
  0% { transform: translate3d(calc(100% + 2px), 0, 0) scaleX(1); }
  34% { transform: translate3d(82%, 0, 0) scaleX(1.3); }
  68% { transform: translate3d(14%, 0, 0) scaleX(0.76); }
  100% { transform: translate3d(0, 0, 0) scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .nav-indicator-animate .nav-active-indicator { transition: opacity 160ms ease; }
  .auth-tabs.vacuum-to-register::before,
  .auth-tabs.vacuum-to-login::before { animation: none; }
}

/* One shared silver treatment for secondary actions across every app surface. */
.secondary-btn,
.quiet-btn:not(.danger-btn),
.home-button-secondary,
.offer-text-link,
.academy-marketing-button:not(.is-dark),
.about2-button-secondary,
.contact-option a:not(.contact-primary),
.auth-card .google-btn,
.verification-card .verification-secondary,
.quiz-generator .generator-secondary,
.summary-actions .summary-secondary,
.cookie-consent .cookie-button-secondary,
.cookie-settings .cookie-button-secondary {
  border: 1px solid var(--app-silver-button-border);
  border-radius: var(--app-control-radius);
  background: var(--app-silver-button);
  color: var(--app-silver-button-text);
  box-shadow: var(--app-silver-button-shadow);
  -webkit-backdrop-filter: blur(18px) saturate(0.78);
  backdrop-filter: blur(18px) saturate(0.78);
  transition: background 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.secondary-btn:hover:not(:disabled),
.quiet-btn:not(.danger-btn):hover:not(:disabled),
.home-button-secondary:hover,
.offer-text-link:hover,
.academy-marketing-button:not(.is-dark):hover,
.about2-button-secondary:hover,
.contact-option a:not(.contact-primary):hover,
.auth-card .google-btn:hover:not(:disabled),
.verification-card .verification-secondary:hover:not(:disabled),
.quiz-generator .generator-secondary:hover:not(:disabled),
.summary-actions .summary-secondary:hover:not(:disabled),
.cookie-consent .cookie-button-secondary:hover:not(:disabled),
.cookie-settings .cookie-button-secondary:hover:not(:disabled) {
  border-color: rgba(91, 104, 116, 0.46);
  background: var(--app-silver-button-hover);
  color: #0b0c0e;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86), 0 11px 26px rgba(18, 24, 30, 0.15);
  transform: translateY(-1px);
}

.quiz-generator .generator-secondary:disabled,
.verification-card .verification-secondary:disabled,
.secondary-btn:disabled,
.quiet-btn:not(.danger-btn):disabled {
  border-color: rgba(130, 141, 151, 0.2);
  background: rgba(203, 211, 219, 0.34);
  color: rgba(23, 25, 28, 0.55);
  box-shadow: none;
  opacity: 1;
  cursor: not-allowed;
}

/* Shared typography and motion contracts ---------------------------------- */
:is(.auth-card, .verification-card, .paywall-card) :is(button, input, select, textarea),
.code-panel-shell :is(button, input) {
  font-family: var(--app-font);
}

.auth-footer a {
  color: var(--app-ink);
  font-weight: 700;
  text-decoration-color: rgba(5, 5, 5, 0.34);
  text-underline-offset: 3px;
}

.ai-explanation { color: #3f3f3f; }
.about2-stage-number { border-color: rgba(5, 5, 5, 0.14); }
.academy-loader {
  border-color: rgba(5, 5, 5, 0.16);
  border-top-color: var(--app-ink);
}

.site-motion-ready [data-site-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--app-motion-reveal) var(--app-ease) var(--site-reveal-delay, 0ms),
    transform var(--app-motion-reveal) var(--app-ease) var(--site-reveal-delay, 0ms);
  will-change: opacity, transform;
}

.site-motion-ready [data-site-reveal].is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
  .site-motion-ready [data-site-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Quiz result polish ----------------------------------------------------- */
.quiz-summary {
  max-width: 840px;
  padding: clamp(22px, 3vw, 34px) 0 8px;
}

.summary-score {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

.summary-details {
  position: relative;
  overflow: hidden;
  margin-top: 30px;
  padding: 26px;
  border: 1px solid rgba(5, 5, 5, 0.08);
  border-radius: 24px;
  background:
    radial-gradient(circle at 100% 0, rgba(20, 122, 84, 0.09), transparent 34%),
    linear-gradient(145deg, #fcfcfb, #f0f1ee);
  box-shadow: 0 1px 0 #fff inset, 0 18px 42px rgba(20, 27, 45, 0.08);
}

.summary-details::before {
  position: absolute;
  top: 0;
  left: 26px;
  width: 72px;
  height: 3px;
  border-radius: 0 0 999px 999px;
  background: #050505;
  content: "";
}

.summary-details h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: #111;
  font-size: 16px;
  letter-spacing: -0.02em;
  text-align: left;
}

.summary-details h3::before {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: 3px;
  background: #050505;
  box-shadow: 0 0 0 4px rgba(5, 5, 5, 0.07);
  content: "";
}

.summary-row {
  min-height: 54px;
  align-items: center;
  margin-top: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(5, 5, 5, 0.07);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 1px 0 #fff inset, 0 5px 14px rgba(20, 27, 45, 0.045);
  color: #626262;
  font-size: 14px;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.summary-row:hover {
  transform: translateY(-1px);
  box-shadow: 0 1px 0 #fff inset, 0 9px 20px rgba(20, 27, 45, 0.08);
}

.summary-row strong {
  min-width: 44px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  padding: 0 9px;
  border-radius: 10px;
  background: rgba(5, 5, 5, 0.06);
  color: #111;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.summary-row:nth-of-type(1),
.summary-row:nth-of-type(2) {
  border-color: rgba(20, 122, 84, 0.14);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(232, 248, 239, 0.8));
  color: #28634d;
}

.summary-row:nth-of-type(1) strong,
.summary-row:nth-of-type(2) strong {
  background: #d9f1e2;
  color: #0f7046;
}

.summary-row:nth-of-type(3),
.summary-row:nth-of-type(4) {
  border-color: rgba(181, 59, 71, 0.12);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(255, 241, 242, 0.82));
  color: #8d5960;
}

.summary-row:nth-of-type(3) strong,
.summary-row:nth-of-type(4) strong {
  background: #f9e1e4;
  color: #a83f4a;
}

.summary-row:nth-of-type(5) {
  background: rgba(255, 255, 255, 0.54);
  color: #777;
}

.summary-row:nth-of-type(6) {
  margin-top: 14px;
  border-color: rgba(5, 5, 5, 0.15);
  background: linear-gradient(135deg, #f8f8f6, #e4e6e3);
  color: #1e1e1e;
  box-shadow: 0 1px 0 #fff inset, 0 8px 20px rgba(20, 27, 45, 0.09);
}

.summary-row:nth-of-type(6) strong {
  background: #050505;
  color: #fff;
}

.summary-actions {
  align-items: center;
  gap: 12px;
  margin-top: 26px;
}

.summary-actions #previewLoginBtn {
  flex-basis: 100%;
}

.summary-actions #newQuizBtn.summary-secondary {
  border: 1px solid var(--app-silver-button-border);
  border-radius: var(--app-control-radius);
  background: var(--app-silver-button);
  color: var(--app-silver-button-text);
  box-shadow: var(--app-silver-button-shadow);
}

.summary-actions #newQuizBtn.summary-secondary:hover:not(:disabled) {
  border-color: rgba(91, 104, 116, 0.46);
  background: var(--app-silver-button-hover);
  color: #0b0c0e;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86), 0 11px 26px rgba(18, 24, 30, 0.15);
}

.summary-actions > a:last-child {
  border-color: rgba(5, 5, 5, 0.14);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 1px 0 #fff inset, 0 7px 18px rgba(20, 27, 45, 0.06);
}

@media (max-width: 600px) {
  .summary-details { padding: 22px 16px 16px; }
  .summary-details::before { left: 16px; }
  .summary-row { gap: 12px; padding-right: 10px; padding-left: 10px; }
  .summary-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .summary-actions #previewLoginBtn { grid-column: 1 / -1; }
  .summary-actions > a:last-child { grid-column: 1 / -1; }
}

/* Saved-question library ------------------------------------------------ */
.review-library-tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.saved-quiz-link {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid #050505;
  border-radius: 11px;
  background: #050505;
  color: #fff;
  font-size: 13px;
  font-weight: 760;
  letter-spacing: -0.01em;
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(5, 5, 5, 0.14);
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.saved-quiz-link:hover {
  transform: translateY(-1px);
  background: #1c1c1c;
  box-shadow: 0 11px 24px rgba(5, 5, 5, 0.18);
}

.review-card {
  display: flex;
  flex-direction: column;
  min-height: 230px;
  padding: 24px;
  border: 1px solid rgba(5, 5, 5, 0.09) !important;
  border-radius: 18px;
  background: linear-gradient(145deg, #fff, #f8faf8) !important;
  box-shadow: 0 1px 0 #fff inset, 0 14px 34px rgba(20, 27, 45, 0.07) !important;
}

.review-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: #7b827f;
  font-size: 11px;
  font-weight: 780;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.review-card-meta > span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 5px 8px;
  border: 1px solid rgba(5, 5, 5, 0.07);
  border-radius: 8px;
  background: rgba(5, 5, 5, 0.045);
}

.review-card-meta .answer-category {
  border-color: rgba(20, 122, 84, 0.12);
  background: rgba(20, 122, 84, 0.08);
  color: #28634d;
}

.review-card h3 {
  margin: 18px 0 26px;
  color: #111;
  font-size: 16px;
  font-weight: 680;
  line-height: 1.55;
  letter-spacing: -0.015em;
}

.review-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.review-card-actions button {
  min-height: 40px;
  padding: 0 13px;
  border: 1px solid rgba(5, 5, 5, 0.14);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.78);
  color: #222;
  font-size: 13px;
  font-weight: 760;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.review-card-actions button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(5, 5, 5, 0.34);
  background: #fff;
}

.review-card-actions .review-reveal {
  border-color: #050505;
  background: #050505;
  color: #fff;
}

.review-card-actions .review-reveal:hover:not(:disabled) {
  border-color: #1c1c1c;
  background: #1c1c1c;
}

.review-card-actions .review-remove {
  border-color: transparent;
  background: transparent;
  color: #747b78 !important;
}

.review-card-actions .review-remove:hover:not(:disabled) {
  border-color: rgba(181, 59, 71, 0.14);
  background: rgba(255, 241, 242, 0.75);
  color: #a83f4a !important;
}

.review-answer {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid rgba(20, 122, 84, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
  color: #27332d;
}

.review-answer.is-revealed {
  border-color: rgba(20, 122, 84, 0.2);
  background: rgba(246, 252, 248, 0.92);
}

.review-answer-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #0f7046;
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.review-answer-heading strong {
  min-width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: #147a54;
  color: #fff;
  font-size: 13px;
}

.review-answer-options {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.review-answer-option {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  padding: 10px 11px;
  border: 1px solid rgba(5, 5, 5, 0.08);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.76);
  color: #454b48;
  font-size: 13px;
  line-height: 1.45;
}

.review-answer-option.is-correct {
  border-color: rgba(20, 122, 84, 0.22);
  background: #e8f6ed;
  color: #1f6047;
}

.review-answer-letter {
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(5, 5, 5, 0.07);
  color: #262b29;
  font-size: 12px;
  font-weight: 800;
}

.review-answer-option.is-correct .review-answer-letter {
  background: #147a54;
  color: #fff;
}

.review-answer-copy {
  padding-top: 4px;
}

.review-answer-details > p {
  margin: 14px 0 0;
  color: #59645e;
  font-size: 13px;
  line-height: 1.6;
}

@media (max-width: 600px) {
  .review-library-tools {
    width: 100%;
    justify-content: flex-start;
  }

  .saved-quiz-link {
    width: 100%;
  }

  .review-card {
    padding: 20px;
  }
}