:root {
  --deepdoc-hero-min: 680px;
  --deepdoc-hero-gap: clamp(38px, 6vw, 92px);
  --deepdoc-copy-width: 720px;
  --deepdoc-map-width: 520px;
  --deepdoc-map-height: 480px;
  --deepdoc-map-inset: 34px;
  --deepdoc-grid-size: 32px;
  --deepdoc-line-width: 4px;
  --deepdoc-node-size: 18px;
  --deepdoc-node-large: 28px;
  --deepdoc-chapter-space: clamp(78px, 9vw, 124px);
  --deepdoc-paragraph-gap: 18px;
  --deepdoc-table-gap: 34px;
  --deepdoc-mark-width: 96px;
  --deepdoc-mark-height: 4px;
  --deepdoc-map-shadow: 14px 14px 0 var(--color-black);
}

.deepdoc-hero {
  position: relative;
  min-height: var(--deepdoc-hero-min);
  overflow: hidden;
  border-bottom: 2px solid var(--color-border);
  background:
    linear-gradient(var(--color-grid) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-grid) 1px, var(--color-transparent) 1px),
    var(--color-bg);
  background-size: var(--deepdoc-grid-size) var(--deepdoc-grid-size);
}

.deepdoc-hero::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - var(--deepdoc-map-inset));
  width: 2px;
  content: "";
  background: linear-gradient(
    var(--color-transparent),
    var(--color-accent),
    var(--color-border),
    var(--color-transparent)
  );
}

.deepdoc-hero-grid {
  min-height: var(--deepdoc-hero-min);
  display: grid;
  grid-template-columns: minmax(0, var(--deepdoc-copy-width)) minmax(360px, var(--deepdoc-map-width));
  align-items: center;
  justify-content: space-between;
  gap: var(--deepdoc-hero-gap);
  padding-top: 64px;
  padding-bottom: 64px;
}

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

.deepdoc-hero-copy .eyebrow {
  margin-bottom: 24px;
}

.deepdoc-hero-copy h1 {
  max-width: var(--deepdoc-copy-width);
}

.deepdoc-hero-copy .lead {
  max-width: 680px;
  margin: 26px 0 0;
}

.deepdoc-hero-copy .chip-row {
  margin-top: 26px;
}

.deepdoc-intro {
  max-width: 690px;
  margin-top: 30px;
  padding: 20px 22px;
  border-left: 5px solid var(--color-accent);
  background: var(--color-panel);
  box-shadow: 6px 6px 0 var(--color-black);
  color: var(--color-text-muted);
}

.deepdoc-intro p {
  margin: 0;
}

.deepdoc-intro a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.deepdoc-map {
  position: relative;
  width: min(100%, var(--deepdoc-map-width));
  height: var(--deepdoc-map-height);
  justify-self: end;
  border: 3px solid var(--color-border-bright);
  background:
    linear-gradient(var(--color-grid) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-grid) 1px, var(--color-transparent) 1px),
    var(--color-panel);
  background-size: var(--deepdoc-grid-size) var(--deepdoc-grid-size);
  box-shadow: var(--deepdoc-map-shadow);
  clip-path: polygon(
    0 0,
    calc(100% - var(--cut-medium)) 0,
    100% var(--cut-medium),
    100% 100%,
    var(--cut-medium) 100%,
    0 calc(100% - var(--cut-medium))
  );
}

.deepdoc-map::before,
.deepdoc-map::after {
  position: absolute;
  content: "";
  background: var(--color-accent);
}

.deepdoc-map::before {
  top: 58px;
  right: 0;
  width: 42%;
  height: 3px;
}

.deepdoc-map::after {
  top: 0;
  bottom: 0;
  left: 58%;
  width: 2px;
  opacity: 0.55;
}

.deepdoc-map-label {
  position: absolute;
  top: 18px;
  left: 20px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.deepdoc-map-gate {
  position: absolute;
  inset: 82px 36px 76px;
  border: 18px solid var(--color-border);
  box-shadow:
    inset 8px 8px 0 var(--color-black),
    8px 8px 0 var(--color-black);
  clip-path: polygon(
    var(--cut-medium) 0,
    100% 0,
    100% calc(100% - var(--cut-medium)),
    calc(100% - var(--cut-medium)) 100%,
    0 100%,
    0 var(--cut-medium)
  );
}

.deepdoc-map-gate::before {
  position: absolute;
  inset: 34px;
  content: "";
  border: 3px solid var(--color-accent);
  background: var(--color-bg);
}

.deepdoc-map-node {
  position: absolute;
  z-index: 3;
  width: var(--deepdoc-node-size);
  height: var(--deepdoc-node-size);
  border: 4px solid var(--color-bg);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-text);
}

.deepdoc-map-node.node-entry {
  top: 72%;
  left: -9px;
}

.deepdoc-map-node.node-route {
  top: 54%;
  left: 28%;
}

.deepdoc-map-node.node-region {
  top: 34%;
  left: 58%;
  background: var(--color-text);
  box-shadow: 0 0 0 3px var(--color-accent);
}

.deepdoc-map-node.node-service {
  top: 13%;
  right: -14px;
  width: var(--deepdoc-node-large);
  height: var(--deepdoc-node-large);
  background: var(--color-success);
  box-shadow: 0 0 0 4px var(--color-success-soft);
}

.deepdoc-map-line {
  position: absolute;
  z-index: 2;
  display: block;
  height: var(--deepdoc-line-width);
  background: var(--color-accent);
  transform-origin: left center;
}

.deepdoc-map-line.line-entry {
  top: 75%;
  left: 0;
  width: 31%;
  transform: rotate(-23deg);
}

.deepdoc-map-line.line-region {
  top: 57%;
  left: 29%;
  width: 35%;
  background: var(--color-text);
  transform: rotate(-27deg);
}

.deepdoc-map-line.line-service {
  top: 37%;
  left: 59%;
  width: 43%;
  transform: rotate(-29deg);
}

.deepdoc-map-code {
  position: absolute;
  z-index: 4;
  padding: 3px 7px;
  border: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.deepdoc-map-code.code-local {
  bottom: 9%;
  left: 4%;
}

.deepdoc-map-code.code-edge {
  top: 43%;
  left: 39%;
}

.deepdoc-map-code.code-ai {
  top: 2%;
  right: 2%;
  border-color: var(--color-success);
  color: var(--color-success);
}

.deepdoc-map-status {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.deepdoc-manual {
  position: relative;
}

.deepdoc-manual::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: max(var(--gutter), calc((100% - var(--reading-width)) / 2 - 68px));
  width: 4px;
  content: "";
  background: linear-gradient(
    var(--color-accent),
    var(--color-border) 18%,
    var(--color-border) 82%,
    var(--color-accent)
  );
}

.deepdoc-section {
  position: relative;
  padding-top: var(--deepdoc-chapter-space);
  padding-bottom: var(--deepdoc-chapter-space);
  border-top: 1px solid var(--color-border);
}

.deepdoc-section:nth-child(even) {
  background:
    linear-gradient(90deg, var(--color-panel-glow), var(--color-transparent) 34%),
    var(--color-panel);
}

.deepdoc-section:nth-child(odd) {
  background:
    linear-gradient(var(--color-grid) 1px, var(--color-transparent) 1px),
    var(--color-bg);
  background-size: var(--deepdoc-grid-size) var(--deepdoc-grid-size);
}

.deepdoc-section .prose {
  position: relative;
  color: var(--color-text-soft);
}

.deepdoc-section .prose > h2 {
  margin-top: 0;
  padding-bottom: 20px;
  border-bottom: 3px solid var(--color-border);
}

.deepdoc-section .prose > h2::after {
  display: block;
  width: var(--deepdoc-mark-width);
  height: var(--deepdoc-mark-height);
  margin-top: 20px;
  content: "";
  background: var(--color-accent);
}

.deepdoc-section .prose h3 {
  margin-top: 44px;
  padding-left: 16px;
  border-left: 4px solid var(--color-accent);
}

.deepdoc-section .prose p {
  margin-bottom: var(--deepdoc-paragraph-gap);
}

.deepdoc-section .table-scroll {
  margin-top: var(--deepdoc-table-gap);
  margin-bottom: var(--deepdoc-table-gap);
}

.deepdoc-section pre {
  margin-top: var(--deepdoc-table-gap);
  margin-bottom: var(--deepdoc-table-gap);
}

.chapter-mark {
  position: absolute;
  top: 4px;
  left: calc(var(--gutter) * -1);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  transform: translateX(-100%);
}

.chapter-mark::after {
  width: 36px;
  height: 3px;
  content: "";
  background: var(--color-accent);
}

.deepdoc-section .check-list {
  padding: 20px 24px;
  border: 2px solid var(--color-border);
  background: var(--color-panel);
  box-shadow: var(--shadow-hard);
}

.deepdoc-section .check-list ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.deepdoc-section .check-list li {
  padding-left: 0;
}

.deepdoc-section .promo-block {
  margin-bottom: 10px;
}

@media (max-width: 1120px) {
  .deepdoc-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(330px, 430px);
  }

  .deepdoc-map {
    height: 430px;
  }

  .chapter-mark {
    position: static;
    margin-bottom: 20px;
    transform: none;
  }

  .deepdoc-manual::before {
    display: none;
  }
}

@media (max-width: 900px) {
  .deepdoc-hero::before {
    display: none;
  }

  .deepdoc-hero-grid {
    grid-template-columns: 1fr;
  }

  .deepdoc-map {
    width: min(100%, var(--deepdoc-map-width));
    justify-self: start;
  }
}

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

  .deepdoc-map {
    height: 390px;
  }

  .deepdoc-map-gate {
    inset: 74px 28px 68px;
  }

  .deepdoc-section {
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .deepdoc-section .prose h3 {
    margin-top: 38px;
  }
}

@media (max-width: 520px) {
  .deepdoc-map {
    height: 330px;
  }

  .deepdoc-map-gate {
    inset: 68px 20px 62px;
    border-width: 12px;
  }

  .deepdoc-map-gate::before {
    inset: 22px;
  }

  .deepdoc-map-status {
    right: 12px;
    bottom: 12px;
  }

  .deepdoc-map-code.code-edge {
    display: none;
  }

  .deepdoc-intro {
    padding: 18px;
  }

  .deepdoc-section .check-list {
    padding: 18px;
    box-shadow: 5px 5px 0 var(--color-black);
  }
}

@media (prefers-reduced-motion: reduce) {
  .deepdoc-map-node,
  .deepdoc-map-line {
    animation: none;
  }
}