.deepdoc-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-canvas);
}

.deepdoc-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(var(--color-paper-noise) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-paper-noise) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, var(--color-ink), transparent);
  opacity: 0.82;
}

.deepdoc-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 1.08fr);
  gap: 64px;
  align-items: center;
  padding-top: 74px;
  padding-bottom: 76px;
}

.deepdoc-hero-copy {
  position: relative;
  z-index: 2;
}

.deepdoc-hero h1 {
  max-width: 720px;
  margin-bottom: 24px;
}

.deepdoc-hero .lead {
  max-width: 650px;
  margin-bottom: 0;
}

.deepdoc-facts {
  margin-top: 28px;
}

.deepdoc-mini-map {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.deepdoc-mini-map svg {
  display: block;
  width: 100%;
  height: auto;
}

.deepdoc-mini-chrome {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  padding-inline: 16px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-soft);
}

.deepdoc-mini-chrome span {
  width: 9px;
  height: 9px;
  flex: none;
  border-radius: var(--radius-pill);
  background: var(--color-ink-muted);
}

.deepdoc-mini-chrome span:nth-child(2) {
  opacity: 0.55;
}

.deepdoc-mini-chrome span:nth-child(3) {
  opacity: 0.3;
}

.deepdoc-mini-chrome b {
  margin-left: 7px;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.deepdoc-grid {
  fill: none;
  stroke: var(--color-border);
  stroke-width: 1;
  opacity: 0.38;
}

.deepdoc-route-muted {
  fill: none;
  stroke: var(--color-route-muted);
  stroke-width: 2;
  stroke-dasharray: 7 8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.deepdoc-route-glow {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 14;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.13;
}

.deepdoc-route-active {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.deepdoc-node circle {
  fill: var(--color-surface);
  stroke: var(--color-accent);
  stroke-width: 3;
}

.deepdoc-label {
  fill: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.deepdoc-mini-legend {
  display: flex;
  min-height: 44px;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  padding: 9px 17px;
  border-top: 1px solid var(--color-border);
  color: var(--color-ink-muted);
  font-size: 12px;
}

.deepdoc-mini-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.deepdoc-mini-legend i {
  display: block;
  width: 28px;
  height: 0;
  flex: none;
}

.deepdoc-line-active {
  border-top: 4px solid var(--color-accent);
}

.deepdoc-line-muted {
  border-top: 2px dashed var(--color-route-muted);
}

.deepdoc-orbit {
  position: absolute;
  right: -12%;
  bottom: -42%;
  width: 420px;
  height: 420px;
  pointer-events: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  opacity: 0.48;
}

.deepdoc-orbit::before,
.deepdoc-orbit::after {
  position: absolute;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  content: "";
}

.deepdoc-orbit::before {
  inset: 54px;
}

.deepdoc-orbit::after {
  inset: 112px;
  border-color: var(--color-accent);
}

.deepdoc-article {
  position: relative;
  max-width: 1080px;
}

.deepdoc-intro,
.deepdoc-section,
.deepdoc-end {
  max-width: var(--reading-width);
  margin-inline: auto;
}

.deepdoc-intro {
  padding-top: 54px;
  color: var(--color-ink);
  font-size: 18px;
}

.deepdoc-section {
  padding-top: 92px;
}

.deepdoc-section + .deepdoc-section {
  margin-top: 18px;
  border-top: 1px solid var(--color-border);
}

.deepdoc-section h2 {
  max-width: 760px;
}

.deepdoc-section h3 {
  margin-top: 42px;
  font-size: 24px;
}

.deepdoc-section p {
  color: var(--color-ink);
}

.deepdoc-section .callout {
  margin-top: 34px;
  margin-bottom: 34px;
}

.deepdoc-section .table-scroll {
  margin-top: 34px;
  margin-bottom: 34px;
}

.deepdoc-section pre {
  margin-top: 28px;
  margin-bottom: 28px;
}

.deepdoc-end {
  margin-top: 96px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
}

.deepdoc-end h3 {
  margin-bottom: 10px;
}

.deepdoc-end p:last-child {
  color: var(--color-ink-muted);
}

.deepdoc-end a {
  color: var(--color-accent-deep);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-route-muted);
  text-underline-offset: 3px;
}

@media (max-width: 1040px) {
  .deepdoc-hero-inner {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .deepdoc-hero-copy {
    max-width: 780px;
  }

  .deepdoc-mini-map {
    max-width: 780px;
  }

  .deepdoc-orbit {
    right: -24%;
  }
}

@media (max-width: 768px) {
  .deepdoc-hero-inner {
    gap: 36px;
    padding-top: 48px;
    padding-bottom: 52px;
  }

  .deepdoc-mini-map {
    border-radius: var(--radius-sm);
  }

  .deepdoc-mini-chrome b {
    max-width: 72%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .deepdoc-orbit {
    display: none;
  }

  .deepdoc-intro {
    padding-top: 40px;
    font-size: 17px;
  }

  .deepdoc-section {
    padding-top: 72px;
  }

  .deepdoc-section h3 {
    margin-top: 34px;
    font-size: 22px;
  }

  .deepdoc-end {
    margin-top: 72px;
    padding: 24px 20px;
  }
}

@media (max-width: 520px) {
  .deepdoc-mini-legend {
    gap: 10px;
  }

  .deepdoc-mini-map svg {
    min-height: 190px;
  }

  .deepdoc-section {
    padding-top: 58px;
  }

  .deepdoc-section .callout {
    margin-top: 28px;
    margin-bottom: 28px;
  }
}