/* Static exam pages (built by scripts/build-exam-pages.mjs). Tokens copied from
   src/assets/main.css; keep the two palettes in step. */
:root {
  --color-ink: #12203B;
  --color-ink-soft: #4A5872;
  --color-page: #EEF2F8;
  --color-card: #FFFFFF;
  --color-card-alt: #F5F7FB;
  --color-border: #D8DFEB;
  --color-primary: #1E4FD6;
  --color-primary-hover: #173FB0;
  --color-primary-deep: #0A1E5E;
  --color-primary-soft: #E7EEFF;
  --color-accent: #0E7468;
  --color-accent-bright: #2DD4BF;
  --color-accent-soft: #E3F8F5;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05), 0 2px 8px rgba(15, 23, 42, 0.05);
  --focus-ring: rgba(45, 212, 191, 0.55);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--color-page); color: var(--color-ink); font: 16px/1.6 var(--font-sans); }
a { color: var(--color-primary); }
a:hover { color: var(--color-primary-hover); }
:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 2px; }
h1, h2 { font-family: var(--font-display); line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(30px, 5vw, 44px); margin: 8px 0 14px; }
h2 { font-size: 24px; margin: 0 0 8px; }
.ep-wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
main section { margin: 0 0 48px; }

.ep-nav { background: var(--color-card); border-bottom: 1px solid var(--color-border); }
.ep-nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.ep-logo { display: flex; align-items: center; gap: 10px; font: 800 19px var(--font-display); color: var(--color-ink); text-decoration: none; }
.ep-nav nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.ep-nav nav a:not(.ep-btn) { color: var(--color-ink-soft); text-decoration: none; font-weight: 500; font-size: 15px; }
.ep-nav nav a:not(.ep-btn):hover { color: var(--color-ink); }

.ep-btn { display: inline-block; background: var(--color-primary); color: #fff; font-weight: 600; text-decoration: none; padding: 12px 20px; border-radius: var(--radius-md); }
.ep-btn:hover { background: var(--color-primary-hover); color: #fff; }
.ep-btn-sm { padding: 8px 14px; font-size: 14px; }

.ep-crumbs { font-size: 14px; color: var(--color-ink-soft); padding: 20px 0 0; }
.ep-crumbs a { color: var(--color-ink-soft); }
.ep-hero { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 32px; margin: 16px 0 48px; box-shadow: var(--shadow-sm); }
.ep-eyebrow { margin: 0; font-size: 14px; font-weight: 600; color: var(--color-accent); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ep-code { display: inline-block; font-weight: 700; font-size: 13px; letter-spacing: 0.02em; color: var(--color-primary-deep); background: var(--color-primary-soft); border-radius: var(--radius-sm); padding: 2px 8px; }
.ep-lead { font-size: 18px; color: var(--color-ink-soft); max-width: 760px; margin: 0 0 20px; }
.ep-lead strong { color: var(--color-ink); }
.ep-facts { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0 0 24px; }
.ep-facts li { background: var(--color-card-alt); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 8px 14px; font-size: 15px; }
.ep-cta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 20px 0 0; }
.ep-cta span { font-size: 14px; color: var(--color-ink-soft); }
.ep-sub { color: var(--color-ink-soft); margin: 0 0 18px; }

.ep-q { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 22px 24px; margin: 0 0 16px; }
.ep-q-meta { margin: 0 0 8px; font-size: 13px; font-weight: 600; color: var(--color-accent); }
.ep-q-stem p { margin: 0 0 12px; }
.ep-q-stem pre { background: var(--color-primary-deep); color: #fff; padding: 12px 14px; border-radius: var(--radius-md); overflow-x: auto; font-size: 14px; }
.ep-q-options { margin: 0 0 14px; padding-left: 26px; }
.ep-q-options li { padding: 4px 0; }
.ep-q-answer summary, .ep-faq summary { cursor: pointer; font-weight: 600; color: var(--color-primary); }
.ep-q-answer[open] { background: var(--color-accent-soft); border-radius: var(--radius-md); padding: 12px 14px; }
.ep-q-answer p { margin: 8px 0 0; }
.ep-q-answer ol, .ep-q-answer ul { margin: 8px 0 0; padding-left: 22px; }
.ep-q-stem img { display: block; max-width: 100%; height: auto; border: 1px solid var(--color-border); border-radius: var(--radius-md); margin: 0 0 12px; }
.ep-q-statements, .ep-q-items { margin: 0 0 14px; padding-left: 22px; }
.ep-q-statements li, .ep-q-items li { padding: 4px 0; }
.ep-q-choices { color: var(--color-ink-soft); font-size: 14px; }
.ep-tip { background: var(--color-card-alt); border-radius: var(--radius-md); padding: 12px 16px; }

.ep-pick { margin: 0; padding-left: 20px; }
.ep-pick li { padding: 4px 0; }
.ep-table-wrap { overflow-x: auto; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.ep-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
.ep-table th, .ep-table td { text-align: left; vertical-align: top; padding: 12px 16px; border-bottom: 1px solid var(--color-border); }
.ep-table thead th { background: var(--color-card-alt); font-family: var(--font-display); font-size: 17px; }
.ep-table tbody th { width: 26%; color: var(--color-ink-soft); font-weight: 600; }
.ep-table tr:last-child th, .ep-table tr:last-child td { border-bottom: 0; }

.ep-cols { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; }
.ep-topics { list-style: none; padding: 0; margin: 0; }
.ep-topics li { display: grid; grid-template-columns: minmax(0, 1fr) 90px 40px; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--color-border); font-size: 15px; }
.ep-bar { height: 8px; border-radius: 4px; background: linear-gradient(to right, var(--color-accent-bright) var(--w), var(--color-border) var(--w)); }
.ep-pct { text-align: right; font-variant-numeric: tabular-nums; color: var(--color-ink-soft); }
.ep-formats { padding-left: 20px; margin: 0 0 32px; }
.ep-route { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; counter-reset: step; }
.ep-route li { display: flex; align-items: center; gap: 8px; }
.ep-route li + li::before { content: '→'; color: var(--color-ink-soft); }
.ep-route a, .ep-route strong { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 4px 10px; text-decoration: none; }
.ep-route strong { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.ep-cards { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; padding: 0; margin: 0; }
.ep-cards a { display: flex; flex-direction: column; gap: 6px; height: 100%; background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 18px; color: var(--color-ink); text-decoration: none; }
.ep-cards a:hover { border-color: var(--color-primary); }
.ep-cards .ep-code { align-self: flex-start; }
.ep-card-meta { font-size: 13px; color: var(--color-ink-soft); }

.ep-faq { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 14px 18px; margin: 0 0 10px; }
.ep-faq p { margin: 10px 0 0; }
.ep-final { text-align: center; background: var(--color-primary-deep); color: #fff; border-radius: var(--radius-lg); padding: 40px 24px; }
.ep-final p { color: #D6DEF0; }
.ep-final .ep-cta { justify-content: center; }

.ep-footer { border-top: 1px solid var(--color-border); background: var(--color-card); padding: 24px 0; font-size: 14px; color: var(--color-ink-soft); }
.ep-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.ep-footer a { color: var(--color-ink-soft); }

@media (max-width: 760px) {
  .ep-wrap { padding: 0 16px; }
  .ep-hero { padding: 22px 18px; }
  .ep-q { padding: 18px 16px; }
  .ep-cols { grid-template-columns: 1fr; gap: 0; }
  .ep-nav nav { gap: 14px; }
  .ep-nav nav a[href="/faq"] { display: none; }
}