:root {
  --ink: #050a14;
  --panel: #0c1424;
  --panel-2: #0f1a30;
  --panel-3: #101c33;
  --accent: #09d3fb;
  --accent-2: #49e3c3;
  --glow: rgba(9, 211, 251, 0.25);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e9f2ff;
  --muted: #a8b7cb;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", "Jost", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 720px at 85% 5%, rgba(73, 227, 195, 0.10), transparent 60%),
    radial-gradient(1200px 900px at 0% 0%, rgba(9, 211, 251, 0.12), transparent 55%),
    linear-gradient(180deg, #050a14 0%, #060b16 40%, #050812 100%);
  min-height: 100vh;
  scroll-behavior: smooth;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

.guide-header {
  position: sticky;
  top: 0;
  z-index: 70;
  background: #ffffff;
  border-bottom: 1px solid #e6edf5;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.03);
}

.guide-header .bar {
  max-width: 1400px;
  margin: 0 auto;
  padding: 12px 24px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #11182a;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0;
}

.brand img {
  height: 32px;
  width: auto;
}

.brand .dot { display: none; }

.brand span {
  color: inherit;
}

.top-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.top-links a {
  color: #1c2433;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}

.top-links a:hover {
  color: #09d3fb;
  border-color: rgba(9, 211, 251, 0.35);
  background: rgba(9, 211, 251, 0.08);
}

.top-links a.cta {
  background: #09d3fb;
  color: #ffffff;
  border-color: #09d3fb;
  padding: 10px 16px;
  border-radius: 24px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.top-links a.cta:hover {
  background: #241e2f;
  border-color: #241e2f;
  color: #ffffff;
}

.guide-search {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f5f8ff;
  border: 1px solid #e1e8f0;
  border-radius: 14px;
  padding: 8px 12px;
  color: #1c2433;
  position: relative;
}

.guide-search input {
  width: 100%;
  background: transparent;
  border: none;
  color: #1c2433;
  outline: none;
}

.guide-search input::placeholder { color: #8b95a6; }

.guide-search i { color: #7b8797; }

.search-results {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(420px, 78vw);
  background: #0f1a2d;
  border: 1px solid #1f2c45;
  border-radius: 12px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
  display: none;
  max-height: 420px;
  overflow-y: auto;
  z-index: 90;
}

.search-results.open {
  display: block;
}

.search-results a.result {
  display: block;
  padding: 10px 12px;
  color: #e9f2ff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.search-results a.result:last-child {
  border-bottom: none;
}

.search-results a.result strong {
  display: block;
  font-weight: 700;
  margin-bottom: 4px;
}

.search-results a.result span {
  display: block;
  color: #a8b7cb;
  font-size: 13px;
  line-height: 1.35;
}

.search-results .no-results {
  padding: 12px;
  color: #a8b7cb;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  justify-self: end;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid #e1e8f0;
  background: #ffffff;
  color: #11182a;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: #cdd8e5;
  color: #09d3fb;
}

.guide-shell {
  max-width: 1400px;
  margin: 28px auto 60px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 260px 1fr 260px;
  gap: 22px;
}

.guide-sidebar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
  position: sticky;
  top: 86px;
  height: fit-content;
  box-shadow: var(--shadow);
}

.nav-section { margin-bottom: 18px; }
.nav-label {
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-size: 11px;
  color: var(--muted);
  margin: 0 0 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  margin-bottom: 8px;
  border-radius: 12px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  transition: 0.2s ease;
  font-weight: 600;
}

.nav-link small { color: var(--muted); font-weight: 500; }
.nav-link:hover { border-color: var(--border); background: rgba(255, 255, 255, 0.05); }
.nav-link.active { border-color: rgba(9, 211, 251, 0.4); background: rgba(9, 211, 251, 0.08); }

.guide-content {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  padding: 24px 28px;
  box-shadow: var(--shadow);
}

.guide-content h1 { margin-top: 0; margin-bottom: 12px; font-size: 32px; }
.guide-content h2 { margin: 24px 0 12px; font-size: 22px; }
.guide-content h3 { margin: 18px 0 8px; font-size: 18px; }
.guide-content p { color: var(--muted); line-height: 1.6; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(9, 211, 251, 0.12);
  color: var(--text);
  border: 1px solid rgba(9, 211, 251, 0.35);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 14px 0 24px;
}

.guide-card {
  background: var(--panel-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
}

.guide-card h3 { margin: 0 0 8px; }
.guide-card p { margin: 0 0 10px; }

.callout {
  border-radius: var(--radius);
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  margin: 16px 0;
}

.callout.primary { border-color: rgba(9, 211, 251, 0.5); background: rgba(9, 211, 251, 0.06); }
.callout.warn { border-color: rgba(255, 206, 58, 0.5); background: rgba(255, 206, 58, 0.08); }

.list-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 10px 20px; }
.list-grid ul { margin: 0; padding-left: 18px; color: var(--muted); }

.guide-toc {
  position: sticky;
  top: 86px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  height: fit-content;
}

.toc-title { font-weight: 700; margin: 0 0 10px; }
.toc-links { display: grid; gap: 8px; }
.toc-links a { color: var(--muted); }
.toc-links a:hover { color: var(--text); }

.guide-footer {
  max-width: 1400px;
  margin: 0 auto 36px;
  padding: 16px 24px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
}

.tag {
  display: inline-block;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 12px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 14px;
}

.table th, .table td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  color: var(--muted);
}

.table th {
  background: rgba(255, 255, 255, 0.05);
  text-align: left;
  color: var(--text);
}

/* Handbook-style landing layout */
body[data-page="home"] .guide-header {
  background: #ffffff;
  border-bottom: 1px solid #e6edf5;
}

.handbook-main {
  max-width: 1300px;
  margin: 30px auto 64px;
  padding: 0 24px;
}

.handbook-hero {
  padding: 10px 0 6px;
}

.handbook-hero h1 {
  margin: 12px 0 10px;
  font-size: 36px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.handbook-hero p {
  margin: 0 0 14px;
  color: var(--muted);
  max-width: 860px;
}

.handbook-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.handbook-meta {
  color: var(--muted);
  font-size: 13px;
}

.handbook-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.handbook-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  box-shadow: var(--shadow);
  min-height: 230px;
}

.handbook-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--text);
}

.handbook-card p {
  margin: 0 0 10px;
  color: var(--muted);
}

.handbook-card ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.handbook-card a {
  color: #cfd9ff;
  text-decoration: underline;
}

.handbook-card a:hover {
  color: var(--accent);
}

/* Policy layout */
.policy-main {
  max-width: 1100px;
  margin: 32px auto 64px;
  padding: 0 24px;
}

.policy-hero {
  margin-bottom: 18px;
}

.policy-hero h1 {
  margin: 10px 0 8px;
  font-size: 34px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.policy-hero p {
  margin: 0 0 12px;
  color: var(--muted);
}

.policy-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.policy-section {
  margin-top: 14px;
}

.policy-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  box-shadow: var(--shadow);
}

.policy-card h2 {
  margin: 0 0 10px;
  font-size: 20px;
  color: #f5f8ff;
}

.policy-card h3,
.policy-card h4 {
  margin: 12px 0 6px;
  color: #dfe9ff;
  letter-spacing: -0.01em;
}

.policy-card p {
  margin: 0 0 10px;
  color: var(--muted);
}

.policy-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  color: var(--muted);
}

.policy-list--separated {
  gap: 16px;
}

.policy-list--separated li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 14px;
}

.policy-list a {
  color: var(--text);
}

.policy-list a:hover {
  color: var(--accent);
}

.policy-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.policy-pill {
  position: relative;
  display: block;
  height: 150px;
  perspective: 1200px;
  text-decoration: none;
  color: inherit;
}

.pill-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.45s ease, box-shadow 0.2s ease;
  border-radius: 14px;
}

.policy-pill:hover .pill-inner,
.policy-pill:focus-visible .pill-inner {
  transform: rotateY(180deg);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.34);
}

.policy-pill:focus-visible {
  outline: none;
}

.pill-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px;
  border-radius: 14px;
  border: 2px solid #c2d4eb;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.28);
  backface-visibility: hidden;
  text-align: center;
}

.pill-front {
  background: #0f1d3a;
  color: #f3f7ff;
  border-color: #d2e0f4;
}

.pill-back {
  background: #dbe8f3;
  color: #4a6179;
  border-color: #b8cade;
  transform: rotateY(180deg);
}

.pill-acronym {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.pill-front .pill-acronym { color: #ffffff; }
.pill-back .pill-acronym { color: #009ee8; }

.pill-title {
  font-size: 14px;
  font-weight: 700;
  color: #dfe9ff;
}

.pill-desc {
  font-size: 13px;
  line-height: 1.38;
  color: inherit;
}

@media (max-width: 540px) {
  .policy-pill {
    height: 170px;
  }
}

@media (max-width: 1100px) {
  .guide-header .bar { grid-template-columns: 1fr 1fr auto; }
  .guide-shell { grid-template-columns: 240px 1fr; }
  .guide-toc { display: none; }
}

@media (max-width: 900px) {
  .guide-header .bar { grid-template-columns: 1fr auto; }
  .top-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .guide-shell { grid-template-columns: 1fr; }
  .guide-sidebar { position: relative; top: unset; display: none; }
  .guide-sidebar.open { display: block; }
}

@media (max-width: 620px) {
  .guide-shell { padding: 0 16px; }
  .guide-content { padding: 18px 16px; }
}