:root {
  --bg: #070b12;
  --bg-2: #0b111d;
  --panel: #111827;
  --panel-soft: #172033;
  --panel-deep: #0d1422;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --muted-2: #94a3b8;
  --line: rgba(255, 255, 255, 0.13);
  --line-strong: rgba(255, 255, 255, 0.22);
  --accent: #d7a82f;
  --accent-bright: #f4c542;
  --accent-soft: rgba(215, 168, 47, 0.14);
  --cyan: #5eead4;
  --max: 1120px;
  --reader: 860px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(215, 168, 47, 0.12), transparent 28rem),
    radial-gradient(circle at bottom left, rgba(94, 234, 212, 0.045), transparent 38rem),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-shell {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.reader {
  width: min(var(--reader), 100%);
}

.nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--text);
}

.brand {
  font-weight: 800;
  color: var(--text) !important;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero {
  padding: 5.5rem 0 4rem;
}

.kicker {
  color: var(--accent-bright);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
}

h1 {
  max-width: 920px;
  font-size: clamp(2.5rem, 6vw, 5.4rem);
  line-height: 0.94;
  margin: 1rem 0;
  letter-spacing: -0.045em;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.8rem);
  line-height: 1.08;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}

h3 {
  margin-top: 0;
}

.lede {
  max-width: 780px;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: var(--muted);
}

p {
  color: var(--muted);
}

strong {
  color: var(--text);
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-deep));
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  padding: 1.25rem;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
}

.card p,
.card li {
  color: var(--muted);
}

.card.accent {
  border-color: rgba(215, 168, 47, 0.38);
  background: linear-gradient(180deg, rgba(215, 168, 47, 0.13), rgba(17, 24, 39, 0.92));
}

.section {
  padding: 3rem 0;
}

.section.compact {
  padding: 1.75rem 0;
}

.rule {
  border-top: 1px solid var(--line);
  margin: 2rem 0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  text-decoration: none;
  font-weight: 800;
  font-size: 0.92rem;
}

.button.primary {
  background: var(--accent-bright);
  color: #111827;
  border-color: var(--accent-bright);
}

.button.secondary {
  background: var(--accent-soft);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.callout {
  border-left: 3px solid var(--accent-bright);
  padding: 1rem 1.25rem;
  background: rgba(215, 168, 47, 0.08);
  border-radius: 0.75rem;
}

.list-clean {
  padding-left: 1.1rem;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  color: var(--muted-2);
  margin-top: 4rem;
  font-size: 0.92rem;
}

.slide {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 4rem 1rem;
}

.slide-inner {
  width: min(980px, 100%);
}

.slide h1 {
  font-size: clamp(2.7rem, 7vw, 6.2rem);
}

.slide .lede {
  max-width: 760px;
}

.progress {
  position: fixed;
  left: 0;
  top: 0;
  height: 4px;
  width: 10%;
  background: var(--accent-bright);
  z-index: 10;
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 3.5rem;
  }
}

/* EVIDENCE_READER_LAYER_V1 */
.evidence-section {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.evidence-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  text-decoration: none;
  color: inherit;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.evidence-card:hover {
  transform: translateY(-2px);
  border-color: rgba(244, 197, 66, 0.45);
  background: linear-gradient(180deg, rgba(215, 168, 47, 0.10), var(--panel-deep));
}

.evidence-icon {
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border-radius: 0.9rem;
  background: var(--accent-soft);
  border: 1px solid rgba(244, 197, 66, 0.35);
  color: var(--accent-bright);
  font-weight: 900;
}

.visual-preview {
  width: 100%;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: var(--panel);
  margin-bottom: 1rem;
}

.reader-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.reader-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(7, 11, 18, 0.94);
  backdrop-filter: blur(12px);
  z-index: 20;
}

.reader-title {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  line-height: 1.1;
}

.reader-meta {
  margin: 0.25rem 0 0;
  color: var(--muted-2);
  font-size: 0.9rem;
}

.reader-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.reader-frame {
  margin: 1.5rem 0 4rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  overflow: hidden;
  background: rgba(17, 24, 39, 0.45);
}

.reader-frame iframe {
  width: 100%;
  min-height: 82vh;
  border: 0;
  display: block;
  background: #111827;
}

.reader-image-wrap {
  padding: 1rem;
}

.reader-image-wrap img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.75rem;
}

.markdown-reader {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 2rem;
  color: var(--muted);
}

.markdown-reader h1,
.markdown-reader h2,
.markdown-reader h3 {
  color: var(--text);
}

.markdown-reader h1 {
  font-size: clamp(2rem, 4vw, 3.8rem);
}

.markdown-reader h2 {
  margin-top: 2rem;
}

.markdown-reader pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
}

.reader-error {
  padding: 2rem;
}

@media (max-width: 760px) {
  .reader-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .evidence-card {
    grid-template-columns: 1fr;
  }
}