/* ════════════════════════════════════════════════════════════════════
   DOCUMENTATION PAGE — sidebar, product picker, content grid
   Uses tokens from index.css: --bg, --bg-elev, --bg-elev-2, --bg-elev-3,
   --line, --line-strong, --ink, --ink-2, --ink-3, --ink-4, --accent,
   --accent-deep, --accent-soft, --accent-ink, --font-display, --font-body,
   --font-mono
   ════════════════════════════════════════════════════════════════════ */

.docs-layout {
  padding: 40px 0 80px;
  min-height: 100vh;
}

/* 2-col grid: sidebar | main */
.docs-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 24px;
}

@media (max-width: 1024px) {
  .docs-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ════════════ SIDEBAR ════════════ */
.docs-sidebar {
  position: sticky;
  top: 24px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 10px;

  /* Firefox */
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

/* WebKit / Blink — Chrome, Edge, Safari, Brave */
.docs-sidebar::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.docs-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.docs-sidebar::-webkit-scrollbar-thumb {
  background-color: var(--line-strong);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.docs-sidebar::-webkit-scrollbar-thumb:hover {
  background-color: var(--ink-3);
  background-clip: padding-box;
}

.docs-sidebar::-webkit-scrollbar-corner {
  background: transparent;
}

/* Search */
.docs-search {
  position: relative;
  margin-bottom: 16px;
}

.docs-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 13px;
  pointer-events: none;
}

.docs-search input {
  width: 100%;
  padding: 10px 50px 10px 32px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 13px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.docs-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.docs-search kbd {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1px 5px;
}

/* Product picker */
.docs-product-picker {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.dpp-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  margin-bottom: 10px;
}

.dpp-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 4px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  text-align: left;
  cursor: pointer;
  text-decoration: none;
  transition: all .15s ease;
}

.dpp-item:hover {
  background: var(--bg-elev);
  border-color: var(--line);
}

.dpp-item.active {
  background: var(--bg-elev);
  border-color: var(--accent);
}

.dpp-mark {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  background: var(--bg-elev-3);
  color: var(--ink-2);
}

.dpp-item.active .dpp-mark {
  background: var(--accent);
  color: var(--accent-ink);
}

.dpp-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.2;
}

.dpp-tag {
  display: inline-block;
  margin-top: 3px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 2px;
}

.dpp-tag-active {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--line-accent);
}

.dpp-tag-new {
  background: var(--info-soft);
  color: var(--info);
  border: 1px solid var(--info-soft);
}

/* Nav groups */
.docs-nav-group {
  margin-bottom: 8px;
}

.dng-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  border-radius: 3px;
  transition: background .12s ease;
  color: var(--ink-2);
}

.dng-head:hover {
  background: var(--bg-elev);
}

.dng-head-text {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  flex: 1;
}

.dng-count {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--ink-3);
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1px 5px;
  min-width: 22px;
  text-align: center;
}

.dng-chev {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  transition: transform .2s ease;
}

.docs-nav-group.open .dng-chev {
  transform: rotate(180deg);
}

.dng-list {
  list-style: none;
  padding: 4px 0 8px 4px;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}

.docs-nav-group.open .dng-list {
  max-height: 3000px;
}

.dng-list li {
  margin: 0;
}

.dng-list a {
  display: block;
  padding: 5px 10px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-3);
  text-decoration: none;
  border-left: 1px solid var(--line);
  margin-left: 6px;
  transition: all .12s ease;
}

.dng-list a:hover {
  color: var(--ink);
  border-left-color: var(--ink-3);
}

.dng-list a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

/* ════════════ MAIN CONTENT ════════════ */
.docs-main {
  min-width: 0;
}

.docs-head {
  padding-bottom: 28px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.docs-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.docs-meta-tag {
  padding: 2px 8px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--accent);
}

.docs-h1 {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--ink);
  margin: 0 0 14px;
}

.docs-intro {
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 640px;
  margin: 0;
}

.docs-intro strong {
  color: var(--ink);
  font-weight: 600;
}

.docs-section {
  margin-bottom: 56px;
}

/* Quick start grid */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (max-width: 640px) {
  .quick-grid { grid-template-columns: 1fr; }
}

.quick-card {
  display: block;
  padding: 20px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  text-decoration: none;
  transition: all .15s ease;
  position: relative;
}

.quick-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.qc-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

.qc-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  line-height: 1.3;
}

.qc-desc {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink-3);
  margin-bottom: 12px;
}

.qc-action {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.quick-card:hover .qc-action {
  color: var(--accent-deep);
}

/* Section grid */
.section-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

@media (max-width: 640px) {
  .section-grid { grid-template-columns: 1fr; }
}

.section-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  text-decoration: none;
  transition: all .15s ease;
}

.section-card:hover {
  border-color: var(--accent);
  background: var(--bg-elev-2);
}

.sc-letter {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.sc-body {
  flex: 1;
  min-width: 0;
}

.sc-title {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.3;
  margin-bottom: 2px;
}

.sc-count {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.sc-arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-3);
  flex-shrink: 0;
}

.section-card:hover .sc-arrow {
  color: var(--accent);
}

/* Other products grid */
.other-products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

@media (max-width: 768px) {
  .other-products { grid-template-columns: 1fr; }
}

.op-card {
  display: block;
  padding: 20px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  text-decoration: none;
  transition: all .15s ease;
}

.op-card:hover {
  border-color: var(--accent);
}

.op-tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--info-soft);
  color: var(--info);
  border: 1px solid var(--info-soft);
  border-radius: 2px;
  margin-bottom: 12px;
}

.op-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.op-desc {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-3);
}

/* Support resources strip */
.docs-resources {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 8px;
}

@media (max-width: 640px) {
  .docs-resources { grid-template-columns: 1fr; }
}

.dr-card {
  padding: 14px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 3px;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: all .12s ease;
}

.dr-card:hover {
  border-color: var(--line-strong);
}

.dr-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.dr-arrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
}

.dr-card:hover .dr-arrow {
  color: var(--accent);
}

/* No-results state */
.docs-no-results {
  display: none;
  text-align: center;
  padding: 24px 16px;
  color: var(--ink-3);
  font-size: 12.5px;
  border: 1px dashed var(--line);
  border-radius: 3px;
  margin: 12px 0;
}

.docs-no-results.visible {
  display: block;
}