/* ============================================
   DOXA · 全局设计系统
   靛蓝 · 验证绿 · 纸色 · 衬线标题
   清晰 · 干净 · 无 AI 彩边模板
   ============================================ */

:root {
  --doxa-indigo: #1E2A78;
  --doxa-indigo-deep: #151d55;
  --doxa-indigo-soft: #EEF0F8;
  --doxa-paper: #FAF8F2;
  --doxa-paper-2: #F3F0E7;
  --doxa-verified: #15A06A;
  --doxa-verified-soft: #E3F4EC;
  --doxa-ink: #14161F;
  --doxa-gray: #5A5E70;
  --doxa-faint: #8B8F9C;
  --doxa-line: #E4E1D8;
  --doxa-line-strong: #D0CBBE;
  --doxa-muted: #F5F3ED;
  --doxa-surface: #FFFFFF;
  --doxa-shadow-sm: 0 1px 2px rgba(20, 22, 31, 0.04);
  --doxa-shadow: 0 4px 16px rgba(20, 22, 31, 0.06);
  --doxa-radius: 12px;
  --doxa-radius-sm: 8px;
  --font-serif: Georgia, "Source Han Serif SC", "Songti SC", "Noto Serif SC", "SimSun", serif;
  --font-sans: Inter, -apple-system, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--doxa-paper);
  color: var(--doxa-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0 0 0.55em;
  color: var(--doxa-indigo);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.75rem); }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; }

a {
  color: var(--doxa-indigo);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover { color: var(--doxa-verified); }

:focus-visible {
  outline: 2px solid var(--doxa-verified);
  outline-offset: 2px;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Navigation ---------- */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--doxa-line);
  background: rgba(250, 248, 242, 0.92);
  backdrop-filter: blur(12px) saturate(1.15);
  -webkit-backdrop-filter: blur(12px) saturate(1.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand:hover { opacity: 0.88; }

.brand-icon {
  height: 30px;
  width: auto;
  display: block;
}

.brand-word {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  letter-spacing: 0.14em;
  color: var(--doxa-indigo);
  font-weight: 650;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-left: auto;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--doxa-gray);
  padding: 4px 2px;
  transition: color 0.15s var(--ease);
}

.nav-link:hover { color: var(--doxa-indigo); }

.nav-link.is-active {
  color: var(--doxa-verified);
  font-weight: 600;
}

/* 全站导航契约：一级导航固定，学院相关页面共用同一条学院导航。 */
.academy-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 44px;
  padding: 8px 24px;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
  background: var(--doxa-indigo);
  border-bottom: 1px solid var(--doxa-indigo-deep);
}
.academy-nav::-webkit-scrollbar { display: none; }
.academy-nav a {
  flex: 0 0 auto;
  padding: 5px 12px;
  color: rgba(255,255,255,.78);
  font-size: .84rem;
  text-decoration: none;
  border-radius: 6px;
}
.academy-nav a:hover { color: #fff; background: rgba(255,255,255,.1); }
.academy-nav a.is-active { color: #fff; background: var(--doxa-verified); font-weight: 650; }
.academy-nav .academy-label {
  padding: 5px 14px 5px 0;
  margin-right: 4px;
  color: #fff;
  font-family: var(--font-serif);
  font-weight: 700;
  border-right: 1px solid rgba(255,255,255,.24);
}

/* 单层主导航：学院总览是可直接进入的链接，箭头按钮只负责展开学院目录。 */
.academy-menu {
  position: relative;
  display: inline-flex;
  align-items: stretch;
  flex: 0 0 auto;
}
.academy-menu-link { padding-right: 5px; }
.academy-menu-toggle {
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  min-height: 100%;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 0;
  background: transparent;
  color: var(--doxa-gray);
  font: inherit;
  font-size: 0;
  cursor: pointer;
  transition: color .15s var(--ease), border-color .15s var(--ease);
}
.academy-menu-toggle::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: -4px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform .16s var(--ease);
}
.academy-menu-toggle:hover,
.academy-menu.is-open .academy-menu-toggle { color: var(--doxa-indigo); border-bottom-color: var(--doxa-indigo); }
.academy-menu.is-open .academy-menu-toggle::before { margin-top: 4px; transform: rotate(225deg); }
.academy-menu-panel {
  position: absolute;
  top: 100%;
  left: -10px;
  z-index: 120;
  min-width: 220px;
  padding: 8px;
  background: rgba(255,255,255,.98);
  border: 1px solid var(--doxa-line);
  border-radius: 6px;
  box-shadow: 0 16px 32px rgba(20,22,31,.14);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity .16s var(--ease), transform .16s var(--ease), visibility .16s;
}
.academy-menu-panel::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
}
.academy-menu.is-open .academy-menu-panel,
.academy-menu:focus-within .academy-menu-panel { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.academy-menu-panel a { display: block; padding: 9px 10px; color: var(--doxa-gray); text-decoration: none; font-size: .84rem; border-radius: 4px; }
.academy-menu-panel a:hover { color: var(--doxa-indigo); background: var(--doxa-indigo-soft); }
.academy-nav { display: none !important; }
/* 子页面不再叠加第二条固定导航；页面内通过 context/tabs 提供局部路径。 */
.academy-nav, .math-subnav, .ac-subnav, .cn-subnav { display: none !important; }

/* 学院识别标志：五院共用同一比例，内容页可在 Hero 或卡片中复用。 */
.faculty-hero-logo {
  display: block;
  width: 96px;
  height: 96px;
  margin: 0 0 18px;
  object-fit: contain;
}
.faculty-card-logo {
  display: block;
  width: 76px;
  height: 76px;
  margin: 0 0 16px;
  object-fit: contain;
}

@media (min-width: 761px) {
  .nav-actions.nav-scroll { overflow: visible; }
}

@media (max-width: 760px) {
  .site-nav { padding: 11px 16px; gap: 10px; }
  .site-nav .nav-actions { gap: 4px 12px; overflow-x: auto; flex-wrap: nowrap; justify-content: flex-start; }
  .site-nav .nav-link { font-size: .78rem; white-space: nowrap; }
  .academy-nav { padding: 7px 16px; }
  .academy-nav a { font-size: .78rem; padding-inline: 10px; }
  .academy-menu-toggle { width: 22px; min-height: 38px; }
  .academy-menu-panel { left: 0; min-width: 210px; }
}

/* 学院及其入口页面保持同一条对齐规则：品牌固定左侧，导航组固定右侧。 */
@media (min-width: 761px) {
  .site-nav .nav-actions { margin-left: auto !important; justify-content: flex-end !important; }
}

/* 学院页面统一为同一套“期刊版面”语言；学院颜色只作为状态强调。 */
body:has(.academy-nav) {
  background: var(--doxa-paper) !important;
  background-image: none !important;
}
body:has(.academy-nav) .ac-hub-hero,
body:has(.academy-nav) .cn-hub-hero,
body:has(.academy-nav) .math-hero,
body:has(.academy-nav) .ci-hero,
body:has(.academy-nav) .course-intro {
  background: var(--doxa-paper) !important;
  background-image: none !important;
  border-bottom: 1px solid var(--doxa-line) !important;
}
body:has(.academy-nav) .ac-hub-hero::before,
body:has(.academy-nav) .math-hero::before { background: var(--doxa-verified) !important; }
body:has(.academy-nav) .ac-hub-hero::after,
body:has(.academy-nav) .math-hero::after { display: none !important; }
body:has(.academy-nav) .hub-card,
body:has(.academy-nav) .ac-card,
body:has(.academy-nav) .module,
body:has(.academy-nav) .overall,
body:has(.academy-nav) .day {
  border-radius: 6px;
  box-shadow: none !important;
}
body:has(.academy-nav) .hub-card:hover,
body:has(.academy-nav) .ac-card:hover { transform: none; box-shadow: none !important; }
body:has(.academy-nav) .site-footer,
body:has(.academy-nav) .site-foot {
  margin-top: 56px;
  border-top: 0;
}

.lang-toggle {
  background: transparent;
  border: 1px solid var(--doxa-line-strong);
  color: var(--doxa-indigo);
  padding: 5px 11px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.8rem;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.lang-toggle:hover {
  background: var(--doxa-indigo);
  border-color: var(--doxa-indigo);
  color: var(--doxa-paper);
}

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 64px 24px 56px;
  background:
    radial-gradient(ellipse 70% 55% at 50% -5%, rgba(30, 42, 120, 0.07), transparent 60%);
}

.hero-mark {
  width: 132px;
  height: 114px;
  margin: 0 auto 24px;
}

.hero-logo {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-lead {
  font-size: 1.08rem;
  color: var(--doxa-gray);
  max-width: 580px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.hero-actions {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.12s var(--ease), box-shadow 0.12s, background 0.12s, color 0.12s;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-sans);
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--doxa-indigo);
  color: var(--doxa-paper);
  box-shadow: var(--doxa-shadow-sm);
}

.btn-primary:hover {
  background: var(--doxa-indigo-deep);
  color: var(--doxa-paper);
}

.btn-secondary {
  background: transparent;
  color: var(--doxa-indigo);
  border-color: var(--doxa-indigo);
}

.btn-secondary:hover {
  background: var(--doxa-indigo);
  color: var(--doxa-paper);
}

/* ---------- Sections ---------- */
.section {
  padding: 64px 0;
}

.section-muted {
  background: var(--doxa-muted);
  border-top: 1px solid var(--doxa-line);
  border-bottom: 1px solid var(--doxa-line);
}

.section-lead {
  color: var(--doxa-gray);
  font-size: 1.02rem;
  max-width: 600px;
  line-height: 1.65;
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.card {
  background: var(--doxa-surface);
  border: 1px solid var(--doxa-line);
  border-radius: var(--doxa-radius);
  padding: 22px 20px;
  box-shadow: var(--doxa-shadow-sm);
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.15s var(--ease);
}

.card:hover {
  box-shadow: var(--doxa-shadow);
  border-color: var(--doxa-line-strong);
  transform: translateY(-1px);
}

.card h3 {
  margin-bottom: 0.45em;
  font-size: 1.1rem;
}

.card p {
  color: var(--doxa-gray);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Academy / feature tiles on home */
.academy-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.academy-tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  background: var(--doxa-surface);
  border: 1px solid var(--doxa-line);
  border-radius: var(--doxa-radius);
  padding: 20px 18px;
  box-shadow: var(--doxa-shadow-sm);
  min-height: 148px;
  transition: transform 0.15s var(--ease), box-shadow 0.15s, border-color 0.15s;
}

.academy-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--doxa-shadow);
  border-color: var(--doxa-line-strong);
  color: inherit;
}

.academy-tile .at-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--doxa-indigo-soft);
  color: var(--doxa-indigo);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
}

.academy-tile h3 {
  font-size: 1.1rem;
  margin: 0;
  color: var(--doxa-ink);
}

.academy-tile p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--doxa-gray);
  line-height: 1.55;
  flex: 1;
}

.academy-tile .at-meta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--doxa-verified);
}

.academy-tile.soon .at-meta { color: var(--doxa-faint); }
.academy-tile.soon .at-mark {
  background: var(--doxa-paper-2);
  color: var(--doxa-gray);
}

/* ---------- States ---------- */
.states {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 28px 0 40px;
}

.state {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 10px;
  row-gap: 6px;
  align-items: center;
  background: var(--doxa-surface);
  border: 1px solid var(--doxa-line);
  border-radius: var(--doxa-radius);
  padding: 16px 18px;
  box-shadow: var(--doxa-shadow-sm);
}

.state-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.verified .state-dot { background: var(--doxa-verified); }
.doubt .state-dot { background: #B5793F; }
.unverified .state-dot { background: var(--doxa-gray); }

.state-name {
  font-weight: 700;
  color: var(--doxa-indigo);
  font-family: var(--font-serif);
}

.state-desc {
  grid-column: 1 / -1;
  color: var(--doxa-gray);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* ---------- Flow ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.flow-step {
  text-align: left;
  background: var(--doxa-surface);
  border: 1px solid var(--doxa-line);
  border-radius: var(--doxa-radius);
  padding: 20px 18px;
  box-shadow: var(--doxa-shadow-sm);
}

.flow-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--doxa-faint);
  margin-bottom: 10px;
}

.flow-step h4 {
  margin-bottom: 0.35em;
  color: var(--doxa-indigo);
}

.flow-step p {
  color: var(--doxa-gray);
  font-size: 0.92rem;
  margin: 0;
  line-height: 1.55;
}

/* ---------- Compare table ---------- */
.table-wrap {
  overflow-x: auto;
  margin-top: 28px;
  border: 1px solid var(--doxa-line);
  border-radius: var(--doxa-radius);
  background: var(--doxa-surface);
  box-shadow: var(--doxa-shadow-sm);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

.compare-table th,
.compare-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--doxa-line);
  text-align: left;
  vertical-align: top;
}

.compare-table tr:last-child td { border-bottom: none; }

.compare-table th {
  color: var(--doxa-indigo);
  font-weight: 700;
  font-family: var(--font-serif);
  background: var(--doxa-paper-2);
  font-size: 0.95rem;
}

.compare-table td { color: var(--doxa-ink); font-size: 0.95rem; }

.compare-table .positive {
  color: var(--doxa-verified);
  font-weight: 600;
}

/* ---------- Timeline (no colored left rail aesthetic abuse) ---------- */
.timeline {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.timeline li {
  position: relative;
  padding: 16px 18px;
  background: var(--doxa-surface);
  border: 1px solid var(--doxa-line);
  border-radius: var(--doxa-radius);
  box-shadow: var(--doxa-shadow-sm);
}

.timeline-phase {
  display: block;
  color: var(--doxa-indigo);
  font-weight: 700;
  font-family: var(--font-serif);
  margin-bottom: 4px;
  font-size: 1.05rem;
}

.timeline p {
  color: var(--doxa-gray);
  margin: 0;
  font-size: 0.95rem;
}

/* ---------- CTA ---------- */
.cta { text-align: center; }

.waitlist {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}

.waitlist input[type="email"] {
  padding: 11px 14px;
  border: 1px solid var(--doxa-line);
  border-radius: 8px;
  min-width: 260px;
  font-size: 1rem;
  background: var(--doxa-surface);
  color: var(--doxa-ink);
  font-family: var(--font-sans);
}

.waitlist input[type="email"]:focus {
  outline: none;
  border-color: var(--doxa-indigo);
  box-shadow: 0 0 0 3px rgba(30, 42, 120, 0.1);
}

.note {
  margin-top: 14px;
  font-size: 0.875rem;
  color: var(--doxa-gray);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--doxa-indigo);
  color: var(--doxa-paper);
  padding: 44px 0;
  margin-top: 0;
}

.footer-inner { text-align: center; }

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  letter-spacing: 0.14em;
  font-weight: 650;
}

.footer-icon {
  height: 26px;
  width: auto;
  display: block;
}

.footer-slogan {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(250, 248, 242, 0.8);
}

.footer-copyright {
  margin: 14px 0 0;
  font-size: 0.82rem;
  color: rgba(250, 248, 242, 0.65);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 16px;
  }

  .nav-actions {
    width: 100%;
    justify-content: flex-start;
    gap: 8px 12px;
  }

  .hero { padding: 44px 16px 40px; }

  .section { padding: 48px 0; }

  .waitlist {
    flex-direction: column;
    width: 100%;
  }

  .waitlist input[type="email"] { width: 100%; min-width: 0; }

  .container,
  .container-wide { padding: 0 16px; }
}

/* ============================================
   DOXA Editorial System · 2026-08-09
   统一首页 / 数学版面 / AI 课程的期刊工作台语言
   ============================================ */
:root {
  --doxa-indigo: #18266f;
  --doxa-indigo-deep: #111a4b;
  --doxa-indigo-soft: #f1f3f9;
  --doxa-paper: #fbfaf7;
  --doxa-paper-2: #f5f3ee;
  --doxa-verified: #15986a;
  --doxa-verified-soft: #e8f5ef;
  --doxa-ink: #17191f;
  --doxa-gray: #60646f;
  --doxa-faint: #8a8e98;
  --doxa-line: #e6e4dd;
  --doxa-line-strong: #cbc8be;
  --doxa-muted: #f6f5f1;
  --doxa-surface: #ffffff;
  --doxa-shadow-sm: none;
  --doxa-shadow: none;
  --doxa-radius: 6px;
  --doxa-radius-sm: 4px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --font-sans: Inter, "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

body { background: var(--doxa-paper); line-height: 1.65; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.editorial-shell { width: min(100% - 48px, 1280px); margin-inline: auto; }

.site-nav {
  min-height: 66px;
  display: grid;
  grid-template-columns: auto minmax(360px, 1fr);
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--doxa-line);
  backdrop-filter: blur(16px);
  box-shadow: none;
}

.brand { gap: 12px; }
.brand-icon { height: 28px; }
.brand-word { font-family: var(--font-serif); font-weight: 700; font-size: 1.18rem; letter-spacing: 0.16em; }
.nav-actions { justify-content: flex-start; flex-wrap: nowrap; gap: 24px; min-width: 0; }
.nav-scroll { overflow-x: auto; scrollbar-width: thin; scrollbar-color: var(--doxa-line-strong) transparent; }
.nav-link { position: relative; flex: 0 0 auto; color: #272a32; font-size: 0.88rem; font-weight: 560; padding: 21px 0 19px; }
.nav-link::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: transparent; }
.nav-link:hover, .nav-link.is-active { color: var(--doxa-indigo); }
.nav-link.is-active::after { background: var(--doxa-indigo); }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 22px; border-radius: 4px; box-shadow: none; transform: none; transition: background 0.15s, border-color 0.15s, color 0.15s; }
.btn:hover { transform: none; }
.btn-compact { min-height: 40px; padding: 8px 18px; }

.editorial-hero { background: var(--doxa-surface); border-bottom: 1px solid var(--doxa-line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 72px; align-items: center; padding-top: 56px; padding-bottom: 0; }
.hero-copy { padding: 28px 0 46px; }
.issue-label, .section-kicker { margin: 0 0 14px; color: var(--doxa-gray); font-family: var(--font-sans); font-size: 0.76rem; font-weight: 650; letter-spacing: 0.12em; text-transform: uppercase; }
.hero-copy h1 { max-width: 760px; margin: 0; color: var(--doxa-indigo); font-size: clamp(2.7rem, 5vw, 4.45rem); line-height: 1.18; letter-spacing: -0.045em; }
.hero-copy .hero-lead { max-width: 720px; margin: 24px 0 28px; color: #424650; font-size: 1.08rem; line-height: 1.8; }
.hero-copy .hero-actions { display: flex; justify-content: flex-start; gap: 14px; }

.trust-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 40px 0 0; padding-top: 20px; border-top: 1px solid var(--doxa-line); }
.trust-list div { padding: 0 22px; border-left: 1px solid var(--doxa-line); }
.trust-list div:first-child { padding-left: 0; border-left: 0; }
.trust-list dt { color: var(--doxa-indigo); font-size: 0.88rem; font-weight: 700; }
.trust-list dd { margin: 4px 0 0; color: var(--doxa-gray); font-size: 0.8rem; }

.learning-panel { align-self: end; margin-top: 0; padding: 0; border: 1px solid var(--doxa-line); border-bottom: 0; border-radius: 6px 6px 0 0; background: #fff; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 20px; border-bottom: 1px solid var(--doxa-line); }
.panel-heading h2 { margin: 0; font-size: 1.1rem; }
.panel-heading a { font-size: 0.78rem; font-weight: 650; text-decoration: none; }
.panel-kicker { margin: 20px 20px 5px; color: var(--doxa-gray); font-size: 0.75rem; }
.learning-panel h3 { margin: 0 20px 18px; font-size: 1.35rem; color: var(--doxa-ink); }
.learning-progress { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; padding: 0 20px; }
.progress-line { height: 6px; overflow: hidden; background: #edece7; }
.progress-line span { display: block; height: 100%; width: 0; background: var(--doxa-indigo); transition: width 0.35s; }
.learning-progress strong { color: var(--doxa-indigo); font-size: 0.82rem; }
.learning-stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: 20px; padding: 16px 0; border-top: 1px solid var(--doxa-line); border-bottom: 1px solid var(--doxa-line); }
.learning-stats div { padding: 0 12px; border-left: 1px solid var(--doxa-line); }
.learning-stats div:first-child { padding-left: 0; border-left: 0; }
.learning-stats dt { color: var(--doxa-faint); font-size: 0.7rem; }
.learning-stats dd { margin: 3px 0 0; color: var(--doxa-ink); font-size: 0.85rem; font-weight: 700; }
.next-lesson { margin: 0 20px 16px; }
.next-lesson span { display: block; color: var(--doxa-faint); font-size: 0.7rem; }
.next-lesson strong { display: block; margin-top: 3px; font-family: var(--font-serif); font-size: 0.96rem; line-height: 1.5; }
.learning-panel > .btn { margin: 0 20px 20px; }

.editorial-section { padding: 40px 0; background: var(--doxa-surface); border-bottom: 1px solid var(--doxa-line); }
.section-heading-row { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.section-heading-row h2 { margin: 0; font-size: clamp(1.55rem, 3vw, 2rem); }
.section-heading-row .section-kicker { margin-bottom: 5px; }
.text-link { font-size: 0.82rem; font-weight: 650; text-decoration: none; white-space: nowrap; }
.content-index { border-top: 1px solid var(--doxa-line-strong); }
.index-head, .index-row { display: grid; grid-template-columns: minmax(300px, 2.5fr) minmax(90px, .75fr) minmax(96px, .85fr) minmax(96px, .85fr) minmax(150px, 1.15fr) 56px; gap: 20px; align-items: center; }
.index-head { padding: 12px 14px; color: var(--doxa-faint); font-size: 0.7rem; font-weight: 650; letter-spacing: 0.04em; }
.index-row { min-height: 92px; padding: 16px 14px; border-top: 1px solid var(--doxa-line); }
.index-row[hidden] { display: none; }
.index-row:hover { background: #fcfcfa; }
.index-title h3 { margin: 0 0 4px; font-size: 1rem; color: var(--doxa-ink); }
.index-title h3 a { color: inherit; text-decoration: none; }
.index-title p { margin: 0; color: var(--doxa-gray); font-size: 0.8rem; line-height: 1.55; }
.index-field, .index-source { color: #333741; font-size: 0.78rem; }
.index-source { color: var(--doxa-indigo); font-weight: 650; }
.index-review { color: #4c5059; font-size: 0.76rem; line-height: 1.55; }
.index-review small { color: var(--doxa-faint); font-size: inherit; }
.status { display: inline-flex; justify-self: start; padding: 3px 8px; border: 1px solid var(--doxa-line-strong); border-radius: 3px; font-size: 0.7rem; font-weight: 700; }
.status-verified { color: #087a4d; background: var(--doxa-verified-soft); border-color: #b5ddca; }
.status-review { color: var(--doxa-indigo); background: var(--doxa-indigo-soft); border-color: #cdd3e9; }
.row-action { color: var(--doxa-indigo); font-size: 0.78rem; font-weight: 700; text-decoration: none; }
.domain-section { background: var(--doxa-paper); }
.domain-frame { padding: 24px 24px 8px; border: 1px solid var(--doxa-line); background: #fff; }
.domain-index { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--doxa-line); }
.domain-index a { min-height: 96px; padding: 20px 16px; border-left: 1px solid var(--doxa-line); text-align: center; text-decoration: none; }
.domain-index a:first-child { border-left: 0; }
.domain-index strong { display: block; color: var(--doxa-ink); font-family: var(--font-serif); font-size: 0.9rem; }
.domain-index span { display: block; margin-top: 6px; color: var(--doxa-faint); font-size: 0.7rem; }
.domain-index a:hover strong { color: var(--doxa-indigo); }

.principles-section { background: var(--doxa-indigo); color: #fff; }
.principles-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 72px; align-items: start; }
.principles-section h2, .principles-section .section-kicker { color: #fff; }
.principle-copy p { margin: 0 0 18px; color: rgba(255, 255, 255, .78); font-size: 1rem; line-height: 1.85; }
.principle-copy .text-link { color: #fff; text-decoration: underline; }

@media (max-width: 1120px) {
  .site-nav { grid-template-columns: auto 1fr; gap: 18px; padding: 0 20px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) 330px; gap: 40px; }
  .index-head { display: none; }
  .index-row { grid-template-columns: minmax(280px, 1.8fr) repeat(3, minmax(90px, .65fr)) 56px; }
  .index-review { grid-column: 2 / 5; }
  .domain-index { grid-template-columns: repeat(3, 1fr); }
  .domain-index a:nth-child(4) { border-left: 0; border-top: 1px solid var(--doxa-line); }
  .domain-index a:nth-child(5), .domain-index a:nth-child(6) { border-top: 1px solid var(--doxa-line); }
}

@media (max-width: 780px) {
  .editorial-shell { width: min(100% - 32px, 1280px); }
  .site-nav { position: sticky; min-height: 58px; display: flex; flex-wrap: wrap; gap: 0 18px; padding: 12px 16px; }
  .brand { order: 1; }
  .nav-actions { order: 3; width: 100%; gap: 12px; margin-top: 8px; border-top: 1px solid var(--doxa-line); overflow: visible; }
  .nav-actions.nav-scroll { overflow: visible; }
  .nav-link { padding: 11px 0 9px; font-size: .78rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 0; padding-top: 14px; }
  .hero-copy { padding: 30px 0 38px; }
  .hero-copy h1 { font-size: clamp(2.35rem, 12vw, 3.35rem); }
  .hero-copy h1 br { display: none; }
  .hero-copy .hero-lead { font-size: .98rem; }
  .trust-list { grid-template-columns: 1fr; }
  .trust-list div { padding: 12px 0; border-left: 0; border-top: 1px solid var(--doxa-line); }
  .trust-list div:first-child { border-top: 0; }
  .learning-panel { margin: 0; border-bottom: 1px solid var(--doxa-line); border-radius: 6px; }
  .editorial-section { padding: 34px 0; }
  .index-row { grid-template-columns: 1fr auto; gap: 10px 16px; padding: 18px 4px; }
  .index-title { grid-column: 1 / -1; }
  .index-field, .index-source, .status { font-size: .72rem; }
  .index-review { grid-column: 1 / 2; }
  .row-action { grid-column: 2 / 3; grid-row: 3; }
  .domain-frame { padding: 20px 16px 4px; }
  .domain-index { grid-template-columns: repeat(2, 1fr); }
  .domain-index a { border-top: 1px solid var(--doxa-line); }
  .domain-index a:nth-child(odd) { border-left: 0; }
  .domain-index a:nth-child(-n+2) { border-top: 0; }
  .principles-grid { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 480px) {
  .hero-copy .hero-actions { flex-direction: column; }
  .hero-copy .hero-actions .btn { width: 100%; }
  .learning-stats { grid-template-columns: 1fr 1fr; gap: 14px 0; }
  .learning-stats div:nth-child(3) { grid-column: 1 / -1; border-left: 0; padding-left: 0; padding-top: 12px; border-top: 1px solid var(--doxa-line); }
  .section-heading-row { align-items: flex-start; flex-direction: column; }
  .domain-index { grid-template-columns: 1fr; }
  .domain-index a { border-left: 0; }
  .domain-index a:nth-child(2) { border-top: 1px solid var(--doxa-line); }
}

/* ============================================
   DOXA Home v3 · 2026-08-13
   Research-led landing page
   ============================================ */
.home-v3 {
  --home-shell: 1180px;
  --home-indigo: #162467;
  --home-indigo-deep: #0f194c;
  --home-paper: #f8f6ef;
  --home-line: #dedbd1;
  background: var(--home-paper);
}

.home-v3 .site-nav {
  min-height: 72px;
  padding-inline: max(24px, calc((100vw - var(--home-shell)) / 2));
  background: rgba(248, 246, 239, .96);
}

.home-v3 .nav-actions { justify-content: flex-end; }
.home-v3 .brand-word { font-family: var(--font-sans); font-size: 1.02rem; font-weight: 720; letter-spacing: .2em; }
.home-v3 .nav-link { padding-block: 23px 21px; }
.home-v3 .nav-link.is-active { color: var(--doxa-indigo); }
.home-v3 .nav-link.is-active::after { background: var(--doxa-verified); }

.home-shell {
  width: min(calc(100% - 48px), var(--home-shell));
  margin-inline: auto;
}

.home-eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--doxa-gray);
  font-size: .72rem;
  font-weight: 720;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.home-eyebrow > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--doxa-verified);
}

.home-hero {
  position: relative;
  overflow: hidden;
  background: var(--home-paper);
  border-bottom: 1px solid var(--home-line);
}

.home-hero::after {
  content: "∴";
  position: absolute;
  right: max(-38px, calc((100vw - var(--home-shell)) / 2 - 150px));
  top: -116px;
  color: rgba(22, 36, 103, .035);
  font-family: Georgia, serif;
  font-size: 28rem;
  line-height: 1;
  pointer-events: none;
}

.home-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, .65fr);
  gap: 96px;
  align-items: center;
  min-height: 690px;
  padding-block: 76px;
}

.home-hero-copy h1 {
  max-width: 760px;
  margin: 0;
  color: var(--home-indigo);
  font-size: clamp(3.5rem, 6vw, 5.75rem);
  line-height: 1.08;
  letter-spacing: -.065em;
}

.home-hero-lead {
  max-width: 660px;
  margin: 28px 0 0;
  color: #444852;
  font-size: 1.08rem;
  line-height: 1.9;
}

.home-hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-top: 34px;
}

.home-v3 .btn-primary {
  min-height: 52px;
  gap: 30px;
  padding-inline: 24px;
  background: var(--home-indigo);
  border-color: var(--home-indigo);
}

.home-v3 .btn-primary:hover { background: var(--home-indigo-deep); border-color: var(--home-indigo-deep); }

.home-text-action {
  color: var(--home-indigo);
  font-size: .88rem;
  font-weight: 720;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.home-metrics {
  display: flex;
  gap: 0;
  margin: 56px 0 0;
}

.home-metrics div {
  min-width: 132px;
  padding: 0 26px;
  border-left: 1px solid var(--home-line);
}

.home-metrics div:first-child { padding-left: 0; border-left: 0; }
.home-metrics dt { color: var(--home-indigo); font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
.home-metrics dd { margin: 7px 0 0; color: var(--doxa-gray); font-size: .72rem; letter-spacing: .04em; }

.feature-paper {
  position: relative;
  background: #fff;
  border: 1px solid var(--home-line);
  box-shadow: 18px 18px 0 rgba(22, 36, 103, .055);
}

.feature-paper::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 4px;
  height: 88px;
  background: var(--doxa-verified);
}

.feature-paper-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 56px;
  padding: 0 22px;
  border-bottom: 1px solid var(--home-line);
  color: var(--doxa-faint);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.verified-mark {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #087a4d;
  font-size: .7rem;
  font-weight: 720;
  white-space: nowrap;
}

.verified-mark i, .entry-state i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.feature-paper-body { padding: 32px 28px 26px; }
.paper-code { margin: 0 0 22px; color: var(--doxa-faint); font-family: var(--font-mono); font-size: .66rem; letter-spacing: .08em; }
.feature-paper h2 { margin: 0; color: var(--home-indigo); font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.25; letter-spacing: -.04em; }
.feature-paper-body > p:not(.paper-code) { margin: 22px 0 0; color: var(--doxa-gray); font-size: .88rem; line-height: 1.8; }
.paper-meta { display: grid; grid-template-columns: repeat(3, 1fr); margin: 28px 0 0; padding-top: 18px; border-top: 1px solid var(--home-line); }
.paper-meta div { padding-inline: 12px; border-left: 1px solid var(--home-line); }
.paper-meta div:first-child { padding-left: 0; border-left: 0; }
.paper-meta dt { color: var(--doxa-faint); font-size: .62rem; }
.paper-meta dd { margin: 4px 0 0; color: var(--doxa-ink); font-size: .75rem; font-weight: 680; }
.feature-paper-link { display: flex; align-items: center; justify-content: space-between; min-height: 58px; padding: 0 28px; color: var(--home-indigo); border-top: 1px solid var(--home-line); font-size: .8rem; font-weight: 720; text-decoration: none; }
.feature-paper-link:hover { color: #fff; background: var(--home-indigo); }

.home-principles { background: #fff; border-bottom: 1px solid var(--home-line); }
.principles-row { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 70px; min-height: 126px; }
.principles-row > p { margin: 0; color: var(--doxa-gray); font-family: var(--font-serif); font-size: 1.1rem; }
.principles-row > p strong { color: var(--home-indigo); font-weight: 700; }
.principles-row ol { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; list-style: none; }
.principles-row li { padding-left: 20px; color: var(--doxa-ink); border-left: 1px solid var(--home-line); font-size: .8rem; font-weight: 680; }
.principles-row li span { display: block; margin-bottom: 5px; color: var(--doxa-faint); font-family: var(--font-mono); font-size: .65rem; font-weight: 500; }

.home-section { padding: 96px 0; }
.home-section-head { display: grid; grid-template-columns: 1fr 420px; align-items: end; gap: 80px; margin-bottom: 38px; }
.home-section-head.compact { grid-template-columns: 1fr auto; }
.home-section-head .home-eyebrow { margin-bottom: 12px; }
.home-section-head h2 { margin: 0; color: var(--home-indigo); font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.25; letter-spacing: -.045em; }
.section-intro { margin: 0; color: var(--doxa-gray); font-size: .92rem; line-height: 1.8; }

.academy-showcase { background: var(--home-paper); }
.academy-showcase-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--home-line); border-left: 1px solid var(--home-line); }
.academy-entry { display: flex; flex-direction: column; min-height: 350px; padding: 24px; color: inherit; background: rgba(255,255,255,.7); border-right: 1px solid var(--home-line); border-bottom: 1px solid var(--home-line); text-decoration: none; transition: background .2s var(--ease), transform .2s var(--ease); }
.academy-entry-wide { grid-column: span 2; padding: 30px; }
.academy-entry:hover { z-index: 1; color: inherit; background: #fff; box-shadow: 0 14px 36px rgba(22,36,103,.08); transform: translateY(-3px); }
.academy-entry-top { display: flex; align-items: flex-start; justify-content: space-between; min-height: 98px; }
.academy-entry-top img { width: 56px; height: 56px; object-fit: cover; border-radius: 2px; }
.academy-entry-wide .academy-entry-top img { width: 68px; height: 68px; }
.entry-index { color: #9a9da5; font-family: var(--font-mono); font-size: .7rem; }
.entry-state { display: flex; align-items: center; gap: 7px; margin: 0 0 10px; color: #777b84; font-size: .66rem; font-weight: 680; letter-spacing: .03em; }
.entry-state.is-live { color: #087a4d; }
.academy-entry h3 { margin: 0; color: var(--home-indigo); font-size: 1.5rem; letter-spacing: -.03em; }
.academy-entry-wide h3 { font-size: 1.85rem; }
.academy-entry h3 + p { max-width: 430px; margin: 12px 0 0; color: var(--doxa-gray); font-size: .84rem; line-height: 1.75; }
.academy-entry footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: auto; padding-top: 20px; color: var(--doxa-faint); border-top: 1px solid var(--home-line); font-size: .69rem; }
.academy-entry footer b { color: var(--home-indigo); font-size: 1rem; }

@media (min-width: 981px) {
  .academy-entry.is-building { grid-column: span 2; min-height: 300px; }
}

.latest-section { background: #fff; border-top: 1px solid var(--home-line); }
.latest-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 0; border: 1px solid var(--home-line); }
.latest-lead-card { display: flex; min-height: 410px; flex-direction: column; padding: 36px; border-right: 1px solid var(--home-line); }
.latest-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--doxa-faint); font-size: .68rem; font-weight: 680; }
.latest-lead-card h3 { max-width: 500px; margin: 70px 0 0; color: var(--home-indigo); font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.25; letter-spacing: -.045em; }
.latest-lead-card h3 a, .latest-list h3 a { color: inherit; text-decoration: none; }
.latest-lead-card h3 a:hover, .latest-list h3 a:hover { color: var(--doxa-verified); }
.latest-lead-card > p { max-width: 560px; margin: 18px 0 0; color: var(--doxa-gray); font-size: .9rem; line-height: 1.8; }
.latest-lead-card footer { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-top: auto; padding-top: 28px; color: var(--doxa-faint); font-size: .7rem; }
.latest-lead-card footer a { font-weight: 720; text-decoration: none; }
.latest-list { display: grid; grid-template-rows: 1fr 1fr; }
.latest-list article { display: grid; grid-template-columns: 40px 1fr auto; gap: 20px; align-items: start; padding: 34px; }
.latest-list article + article { border-top: 1px solid var(--home-line); }
.latest-number { color: var(--doxa-faint); font-family: var(--font-mono); font-size: .68rem; }
.latest-list p { margin: 0 0 12px; color: var(--doxa-faint); font-size: .66rem; }
.latest-list h3 { margin: 0; color: var(--home-indigo); font-size: 1.24rem; line-height: 1.45; }
.latest-list h3 + span { display: block; margin-top: 20px; color: var(--doxa-faint); font-size: .67rem; }
.latest-arrow { color: var(--home-indigo); font-size: 1rem; text-decoration: none; }

.learning-resume { padding: 96px 0; color: #fff; background: var(--home-indigo); }
.learning-resume-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 120px; align-items: center; }
.learning-resume .home-eyebrow { color: rgba(255,255,255,.58); }
.learning-resume h2 { margin: 0; color: #fff; font-size: clamp(2.2rem, 4vw, 3.5rem); line-height: 1.25; letter-spacing: -.045em; }
.learning-resume h2 + p { max-width: 500px; margin: 22px 0 0; color: rgba(255,255,255,.66); font-size: .9rem; }
.resume-card { padding: 30px; color: var(--doxa-ink); background: var(--home-paper); }
.resume-card-head { display: flex; align-items: center; justify-content: space-between; color: var(--doxa-gray); font-size: .72rem; }
.resume-card-head strong { color: var(--home-indigo); font-family: var(--font-serif); font-size: 1.5rem; }
.resume-track { height: 6px; margin-top: 16px; overflow: hidden; background: #dfddd5; }
.resume-track i { display: block; width: 0; height: 100%; background: var(--doxa-verified); transition: width .35s; }
.resume-card dl { display: grid; grid-template-columns: 1fr 1fr; margin: 26px 0; padding: 20px 0; border-top: 1px solid var(--home-line); border-bottom: 1px solid var(--home-line); }
.resume-card dl div + div { padding-left: 24px; border-left: 1px solid var(--home-line); }
.resume-card dt { color: var(--home-indigo); font-family: var(--font-serif); font-size: 1.15rem; font-weight: 700; }
.resume-card dd { margin: 4px 0 0; color: var(--doxa-faint); font-size: .66rem; }
.resume-next span { display: block; color: var(--doxa-faint); font-size: .65rem; }
.resume-next strong { display: block; margin-top: 5px; color: var(--doxa-ink); font-family: var(--font-serif); font-size: 1rem; }
.home-v3 .resume-button { display: flex; justify-content: space-between; width: 100%; margin-top: 22px; color: #fff; background: var(--home-indigo); border-color: var(--home-indigo); border-radius: 2px; text-decoration: none; }
.home-v3 .resume-button:hover { color: #fff; background: var(--home-indigo-deep); }

.home-footer { padding: 54px 0; background: var(--home-indigo-deep); }
.home-footer-inner { display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.home-footer .footer-brand { justify-content: flex-start; }
.home-footer .footer-brand + p { margin: 10px 0 0; color: rgba(255,255,255,.58); font-family: var(--font-serif); font-size: .82rem; }
.home-footer .footer-copyright { margin: 0; text-align: right; line-height: 1.8; }

@media (max-width: 980px) {
  .home-hero-grid { grid-template-columns: 1fr 330px; gap: 48px; min-height: 620px; }
  .home-hero-copy h1 { font-size: clamp(3rem, 7vw, 4.7rem); }
  .home-section-head { grid-template-columns: 1fr 340px; gap: 48px; }
  .academy-showcase-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learning-resume-grid { gap: 64px; }
}

@media (max-width: 780px) {
  .home-v3 .site-nav { padding-inline: 16px; }
  .home-v3 .nav-actions { justify-content: flex-start; }
  .home-shell { width: min(calc(100% - 32px), var(--home-shell)); }
  .home-hero-grid { grid-template-columns: 1fr; gap: 48px; min-height: 0; padding-block: 58px 66px; }
  .home-hero::after { top: -60px; right: -100px; font-size: 18rem; }
  .home-hero-copy h1 { font-size: clamp(3rem, 13vw, 4.8rem); }
  .home-hero-lead { max-width: 600px; }
  .feature-paper { max-width: 520px; box-shadow: 12px 12px 0 rgba(22,36,103,.055); }
  .principles-row { grid-template-columns: 1fr; gap: 24px; padding-block: 30px; }
  .home-section { padding: 70px 0; }
  .home-section-head, .home-section-head.compact { grid-template-columns: 1fr; gap: 18px; }
  .section-intro { max-width: 560px; }
  .latest-grid, .learning-resume-grid { grid-template-columns: 1fr; }
  .latest-lead-card { border-right: 0; border-bottom: 1px solid var(--home-line); }
  .learning-resume-grid { gap: 42px; }
}

@media (max-width: 520px) {
  .home-v3 .site-nav { display: flex; }
  .home-v3 .nav-actions { gap: 14px; }
  .home-v3 .nav-link { padding-block: 10px 8px; }
  .home-hero-grid { padding-top: 44px; }
  .home-hero-copy h1 { font-size: clamp(2.65rem, 12.5vw, 3.25rem); word-break: keep-all; }
  .home-section-head h2 { word-break: keep-all; }
  .home-hero-lead { font-size: .98rem; line-height: 1.8; }
  .home-hero-actions { align-items: stretch; flex-direction: column; gap: 18px; }
  .home-hero-actions .btn { width: 100%; justify-content: space-between; }
  .home-metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 42px; }
  .home-metrics div { min-width: 0; padding: 0 12px; }
  .home-metrics dt { font-size: 1.2rem; }
  .feature-paper-body { padding-inline: 22px; }
  .paper-meta div { padding-inline: 7px; }
  .principles-row ol { grid-template-columns: 1fr; }
  .principles-row li { display: flex; gap: 12px; padding: 10px 0; border-top: 1px solid var(--home-line); border-left: 0; }
  .principles-row li span { margin: 0; }
  .academy-showcase-grid { grid-template-columns: 1fr; }
  .academy-entry-wide { grid-column: auto; }
  .academy-entry { min-height: 320px; }
  .latest-lead-card { min-height: 430px; padding: 26px; }
  .latest-lead-card h3 { margin-top: 52px; }
  .latest-list article { grid-template-columns: 28px 1fr auto; gap: 12px; padding: 26px 20px; }
  .resume-card { padding: 24px 20px; }
  .home-footer-inner { align-items: flex-start; flex-direction: column; }
  .home-footer .footer-copyright { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .academy-entry, .resume-track i { transition: none; }
  .academy-entry:hover { transform: none; }
}

/* Keep the academy menu inside the viewport on right-aligned page headers. */
.nav-actions .academy-menu-panel { left: auto; right: 0; }