:root {
  --docs-bg: var(--bg-primary, #0d1117);
  --docs-surface: var(--bg-secondary, #161b22);
  --docs-surface-soft: color-mix(in srgb, var(--docs-surface) 88%, white 12%);
  --docs-surface-strong: color-mix(in srgb, var(--docs-surface) 94%, black 6%);
  --docs-border: var(--border-primary, rgba(240, 246, 252, 0.12));
  --docs-text: var(--text-primary, #e6edf3);
  --docs-muted: var(--text-muted, #8b949e);
  --docs-green: var(--accent-green-bright, #3fb950);
  --docs-blue: var(--accent-blue, #58a6ff);
  --docs-purple: var(--accent-purple, #bc8cff);
  --docs-amber: #d29922;
  --docs-button-text: #08130c;
  --docs-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
  --docs-shadow-soft: 0 10px 24px rgba(0, 0, 0, 0.12);
  --docs-hero-bg: radial-gradient(circle at top right,
  color-mix(in srgb, var(--docs-green) 16%, transparent) 0%,
  transparent 34%),
  radial-gradient(circle at left top,
      color-mix(in srgb, var(--docs-blue) 10%, transparent) 0%,
      transparent 30%),
  linear-gradient(180deg,
      color-mix(in srgb, var(--docs-surface-soft) 92%, white 8%) 0%,
      var(--docs-surface) 100%);
}

html[data-theme="light"] {
  --docs-bg: var(--bg-primary, #f6f8fa);
  --docs-surface: var(--bg-secondary, #ffffff);
  --docs-surface-soft: #f6f8fa;
  --docs-surface-strong: #ffffff;
  --docs-border: var(--border-primary, rgba(27, 31, 36, 0.12));
  --docs-text: var(--text-primary, #1f2328);
  --docs-muted: var(--text-muted, #57606a);
  --docs-green: var(--accent-green-bright, #2da44e);
  --docs-blue: var(--accent-blue, #0969da);
  --docs-purple: var(--accent-purple, #8250df);
  --docs-button-text: #ffffff;
  --docs-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
  --docs-shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.08);
}

body {
  color: var(--docs-text);
  background: var(--docs-bg);
}

.docs-shell {
  max-width: 1440px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  color: var(--docs-text);
}

.docs-shell--detail {
  padding-top: 24px;
}

.docs-eyebrow {
  margin: 0 0 12px;
  font: 600 12px/1.3 "JetBrains Mono", monospace;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--docs-green);
}

.docs-hero {
  position: relative;
  margin-bottom: 24px;
  padding: 28px 28px 24px;
  border: 1px solid var(--docs-border);
  border-radius: 28px;
  background: var(--docs-hero-bg);
  box-shadow: var(--docs-shadow);
  overflow: hidden;
}

.docs-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
      180deg,
      color-mix(in srgb, white 8%, transparent),
      transparent 38%
  );
  opacity: 0.5;
}

.docs-hero > * {
  position: relative;
  z-index: 1;
}

.docs-hero h1,
.doc-detail-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 1.2rem + 2.2vw, 3.8rem);
  line-height: 1.04;
  color: var(--docs-text);
  letter-spacing: -0.03em;
}

.docs-lead {
  margin: 12px 0 0;
  color: var(--docs-muted);
  font-size: 1.02rem;
}

.docs-toolbar,
.doc-card,
.doc-detail-side,
.doc-thumbs,
.doc-preview-surface,
.docs-empty,
.docs-sidebar,
.docs-hero-card {
  border: 1px solid var(--docs-border);
  background: var(--docs-surface);
  border-radius: 24px;
  box-shadow: var(--docs-shadow);
}

.docs-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 220px 220px auto;
  gap: 12px;
  padding: 12px;
  margin-top: 22px;
  margin-bottom: 24px;
  border-radius: 20px;
  background: color-mix(in srgb, var(--docs-surface) 82%, transparent);
  box-shadow: none;
}

.docs-toolbar input,
.docs-toolbar select {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid var(--docs-border);
  background: var(--docs-surface-soft);
  color: var(--docs-text);
  padding: 0 14px;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.docs-toolbar input::placeholder {
  color: var(--docs-muted);
}

.docs-toolbar input:focus,
.docs-toolbar select:focus {
  border-color: color-mix(in srgb, var(--docs-green) 48%, var(--docs-border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--docs-green) 14%, transparent);
}

.docs-button--primary {
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid transparent;
  background: var(--docs-green);
  color: var(--docs-button-text);
  font-weight: 700;
  padding: 0 16px;
  transition: transform 180ms ease, filter 180ms ease, box-shadow 180ms ease;
}

.docs-button--primary:hover,
.docs-button--primary:focus-visible {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 10px 20px color-mix(in srgb, var(--docs-green) 24%, transparent);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.doc-card {
  position: relative;
  overflow: hidden;
}

.doc-card__link {
  position: absolute;
  inset: 0;
  z-index: 3;
}

.doc-cover {
  min-height: 180px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-bottom: 1px solid var(--docs-border);
  background: radial-gradient(circle at top right, color-mix(in srgb, var(--cover-color, var(--docs-green)) 18%, transparent) 0%, transparent 42%),
  linear-gradient(180deg, color-mix(in srgb, var(--docs-surface-soft) 92%, transparent), color-mix(in srgb, var(--docs-surface) 96%, transparent));
}

.accent-green {
  --cover-color: var(--docs-green);
}

.accent-blue {
  --cover-color: var(--docs-blue);
}

.accent-purple {
  --cover-color: var(--docs-purple);
}

.accent-amber {
  --cover-color: var(--docs-amber);
}

.doc-cover__eyebrow,
.doc-cover__type,
.doc-card__topline {
  font: 600 11px/1.3 "JetBrains Mono", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--docs-muted);
}

.doc-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  font: inherit;
  letter-spacing: normal;
  text-transform: none;
  color: inherit;
}

.doc-meta-row span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--docs-border) 82%, transparent);
  background: color-mix(in srgb, var(--docs-surface) 78%, transparent);
  color: var(--docs-muted);
  font: 600 0.82rem/1.2 var(--font, "Inter", sans-serif);
  letter-spacing: 0;
  text-transform: none;
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.doc-cover strong {
  font-size: 1.25rem;
  line-height: 1.15;
  color: var(--docs-text);
}

.doc-card__body {
  padding: 18px;
}

.doc-card__body h3 {
  margin: 0 0 10px;
  color: var(--docs-text);
}

.doc-card__body p,
.doc-viewer-note,
.doc-file-item span,
.doc-file-item small {
  color: var(--docs-muted);
}

.doc-detail-hero,
.doc-viewer-grid {
  display: grid;
  gap: 24px;
  margin-bottom: 24px;
}

.doc-detail-hero {
  grid-template-columns: minmax(0, 1.35fr) 360px;
  align-items: stretch;
}

.doc-detail-main {
  position: relative;
  padding: 28px 28px 24px;
  border: 1px solid var(--docs-border);
  border-radius: 28px;
  background: var(--docs-hero-bg);
  box-shadow: var(--docs-shadow);
  overflow: hidden;
}

.doc-detail-main::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
      180deg,
      color-mix(in srgb, white 8%, transparent),
      transparent 42%
  );
  opacity: 0.45;
}

.doc-detail-main > * {
  position: relative;
  z-index: 1;
}

.doc-detail-main h1 {
  margin-bottom: 12px;
}

.doc-detail-main span {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
}

.doc-detail-side,
.docs-empty,
.docs-sidebar,
.docs-hero-card {
  padding: 22px;
}

.doc-detail-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(180deg,
  color-mix(in srgb, var(--docs-surface-soft) 92%, white 8%) 0%,
  var(--docs-surface) 100%);
}

.doc-detail-side h2,
.docs-empty h3,
.doc-thumbs h2 {
  margin: 0 0 10px;
  color: var(--docs-text);
}

.doc-viewer-grid {
  grid-template-columns: 220px minmax(0, 1fr);
  align-items: start;
}

.doc-thumbs {
  height: 640px;
  display: flex;
  flex-direction: column;
  padding: 18px;
  background: linear-gradient(180deg,
  color-mix(in srgb, var(--docs-surface-soft) 92%, white 8%) 0%,
  var(--docs-surface) 100%);
}

.doc-thumbs h2 {
  flex-shrink: 0;
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: 14px;
}

#pdf-thumbs {
  flex: 1;
  min-height: 0;
  padding: 1px 0;
  overflow-y: auto;
}

.doc-preview-surface {
  position: relative;
  padding: 18px 36px 36px;
  overflow: hidden;
  min-height: 640px;
  background: linear-gradient(180deg,
  color-mix(in srgb, var(--docs-surface-soft) 72%, white 28%) 0%,
  var(--docs-surface) 100%);
}

.doc-preview-actions {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

.doc-preview-actions button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: auto;
  min-width: 44px;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--docs-border);
  background: color-mix(in srgb, var(--docs-surface-soft) 88%, white 12%);
  color: var(--docs-text);
  box-shadow: var(--docs-shadow-soft);
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.doc-preview-actions button:hover,
.doc-preview-actions button:focus-visible {
  transform: translateY(-50%) scale(1.03);
  border-color: color-mix(in srgb, var(--docs-green) 40%, var(--docs-border));
  background: color-mix(in srgb, var(--docs-surface-strong) 88%, white 12%);
}

.doc-preview-actions button:disabled {
  opacity: 0.45;
  cursor: default;
  transform: translateY(-50%);
}

.doc-preview-actions #prev-page {
  left: 12px;
}

.doc-preview-actions #next-page {
  right: 12px;
}

.doc-preview-actions #page-info {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  pointer-events: auto;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--docs-border);
  background: color-mix(in srgb, var(--docs-surface-soft) 88%, white 12%);
  color: var(--docs-text);
  box-shadow: var(--docs-shadow-soft);
  font-size: 14px;
  line-height: 1;
  white-space: nowrap;
}

.pdf-stage {
  display: block;
  min-height: 520px;
}

.pdf-canvas {
  background: white;
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
  display: block;
  width: 100%;
  height: auto;
}

.pdf-zoom-button {
  position: absolute;
  top: 14px;
  z-index: 20;
  min-width: 38px;
  min-height: 38px;
  border-radius: 10px;
  border: 1px solid var(--docs-border);
  background: color-mix(in srgb, var(--docs-surface-soft) 88%, white 12%);
  color: var(--docs-text);
  cursor: pointer;
  box-shadow: var(--docs-shadow-soft);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.pdf-zoom-button:hover,
.pdf-zoom-button:focus-visible {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--docs-green) 40%, var(--docs-border));
  background: color-mix(in srgb, var(--docs-surface-strong) 88%, white 12%);
}

.pdf-zoom-button--in {
  right: 60px;
}

.pdf-zoom-button--out {
  right: 16px;
}

.doc-file-list {
  display: flex;
  flex-direction: column;
  max-height: 220px;
  gap: 12px;
  padding: 1px 0;
  overflow-y: auto;
}

.doc-file-item {
  display: block;
  text-decoration: none;
  color: var(--docs-text);
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--docs-border);
  background: var(--docs-surface-soft);
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.doc-file-item:hover,
.doc-file-item:focus-visible {
  background: var(--docs-surface-strong);
  border-color: color-mix(in srgb, var(--docs-green) 26%, var(--docs-border));
  transform: translateY(-1px);
  box-shadow: var(--docs-shadow-soft);
}

.doc-file-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--docs-text);
}

.thumb-item {
  width: 100%;
  min-height: 52px;
  border-radius: 16px;
  border: 1px solid var(--docs-border);
  background: var(--docs-surface-soft);
  color: var(--docs-text);
  margin-bottom: 10px;
  padding: 10px;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.thumb-item:hover,
.thumb-item:focus-visible {
  border-color: color-mix(in srgb, var(--docs-green) 28%, var(--docs-border));
  background: color-mix(in srgb, var(--docs-green) 8%, var(--docs-surface-soft));
  transform: translateY(-1px);
}

.thumb-item.is-active {
  border-color: color-mix(in srgb, var(--docs-green) 52%, var(--docs-border));
  background: color-mix(in srgb, var(--docs-green) 12%, var(--docs-surface-soft));
  box-shadow: 0 8px 18px color-mix(in srgb, var(--docs-green) 10%, transparent);
}

.thumb-canvas {
  width: 100%;
  height: auto;
  border-radius: 10px;
  background: white;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
}

.thumb-label {
  padding: 8px 2px 2px;
  margin-bottom: 0;
  font: 600 11px/1.3 "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--docs-muted);
  text-align: center;
}

.docs-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--docs-muted);
  font-size: 0.95rem;
}

.docs-breadcrumbs a {
  color: var(--docs-text);
  text-decoration: none;
}

.docs-breadcrumbs a:hover,
.docs-breadcrumbs a:focus-visible {
  color: var(--docs-green);
}

.docs-empty {
  padding: 22px;
}

@media (max-width: 1100px) {
  .doc-detail-hero,
  .doc-viewer-grid {
    grid-template-columns: 1fr;
  }

  .doc-thumbs {
    height: 320px;
    min-height: 0;
  }

  #pdf-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    grid-auto-rows: max-content;
    gap: 12px;
    min-height: 0;
    align-items: start;
    overflow-y: auto;
  }

  .thumb-item {
    height: auto;
    min-height: max-content;
    align-self: start;
    display: block;
    margin-bottom: 0;
  }

  .thumb-canvas {
    display: block;
    width: 100%;
    height: auto;
  }
}

@media (max-width: 820px) {
  .docs-shell {
    padding: 24px 16px 48px;
  }

  .docs-toolbar {
    grid-template-columns: 1fr;
  }

  .docs-hero,
  .doc-detail-main,
  .doc-detail-side,
  .doc-preview-surface,
  .doc-thumbs,
  .docs-empty,
  .docs-sidebar,
  .docs-hero-card {
    border-radius: 22px;
  }

  .docs-hero,
  .doc-detail-main {
    padding: 22px 20px 20px;
  }

  .doc-viewer-grid,
  .doc-preview-surface,
  .pdf-stage,
  #pdf-stage {
    min-width: 0;
    width: 100%;
    max-width: 100%;
  }

  .doc-preview-surface {
    padding: 16px 18px 56px;
    min-height: auto;
    overflow-x: hidden;
    box-sizing: border-box;
  }

  .pdf-canvas {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
  }

  .pdf-zoom-button--in {
    right: 56px;
  }

  .pdf-zoom-button--out {
    right: 14px;
  }
}

@media (max-width: 640px) {
  .docs-hero h1,
  .doc-detail-hero h1 {
    font-size: clamp(1.8rem, 1.2rem + 4vw, 2.4rem);
  }

  .docs-lead {
    font-size: 0.98rem;
  }

  .doc-detail-main span {
    gap: 8px;
  }

  .doc-preview-actions button {
    min-width: 40px;
    min-height: 40px;
  }

  .doc-preview-actions #prev-page {
    left: 8px;
  }

  .doc-preview-actions #next-page {
    right: 8px;
  }

  .doc-preview-actions #page-info {
    bottom: 8px;
    font-size: 13px;
  }
}