/* DAI Guide additions.
   Intentionally zero-JavaScript and designed to sit on top of /dai/assets/css/site.css. */

.guide-shell {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.guide-sidebar {
  position: sticky;
  top: 94px;
  max-height: calc(100vh - 120px);
  overflow: auto;
  border: 1px solid var(--border, #263545);
  border-radius: 16px;
  background: var(--panel, #111821);
  padding: 14px;
}

.guide-sidebar strong {
  display: block;
  margin: 3px 8px 10px;
}

.guide-sidebar a {
  display: block;
  padding: 7px 8px;
  border-radius: 8px;
  color: var(--muted, #a8b7c5);
  font-size: .88rem;
}

.guide-sidebar a:hover {
  color: var(--text, #eaf2f8);
  background: var(--panel-2, #17212d);
  text-decoration: none;
}

.guide-content { min-width: 0; }

.guide-hero {
  border: 1px solid var(--border, #263545);
  border-radius: 22px;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(117,213,255,.08), rgba(142,227,161,.04)),
    var(--panel, #111821);
}

.guide-hero h1 {
  margin: 5px 0 10px;
  font-size: clamp(2.35rem, 6vw, 4.9rem);
  line-height: .98;
  letter-spacing: -.045em;
}

.guide-hero p {
  margin-bottom: 0;
  color: var(--muted, #a8b7c5);
  max-width: 850px;
}

.guide-stats,
.guide-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin-top: 20px;
}

.guide-stat,
.guide-card {
  border: 1px solid var(--border, #263545);
  border-radius: 14px;
  background: var(--panel, #111821);
  padding: 15px;
}

.guide-stat strong,
.guide-card h3 {
  display: block;
  margin: 0 0 4px;
  color: var(--accent-2, #8ee3a1);
}

.guide-card p,
.guide-stat {
  color: var(--muted, #a8b7c5);
}

.guide-section {
  padding: 30px 0;
  border-bottom: 1px solid var(--border, #263545);
}

.guide-section:last-child { border-bottom: 0; }

.guide-section h2 {
  margin: 0 0 8px;
  font-size: 1.8rem;
}

.guide-section h3 {
  margin: 26px 0 8px;
}

.guide-section p,
.guide-section li {
  color: var(--muted, #a8b7c5);
}

.guide-lead {
  font-size: 1.03rem;
  max-width: 880px;
}

.guide-flow {
  margin: 17px 0;
  border: 1px solid var(--border, #263545);
  border-radius: 14px;
  background: var(--panel, #111821);
  overflow: auto;
}

.guide-flow pre {
  margin: 0;
  padding: 17px;
  color: var(--text, #eaf2f8);
  font: .9rem/1.55 "SFMono-Regular", Consolas, monospace;
}

.guide-code {
  margin: 16px 0;
  border: 1px solid var(--border, #263545);
  border-radius: 14px;
  background: #070b0f;
  overflow: auto;
}

.guide-code .label {
  padding: 8px 13px;
  border-bottom: 1px solid rgba(255,255,255,.09);
  color: #9cb2c4;
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.guide-code pre {
  margin: 0;
  padding: 16px;
  color: #dff4ff;
  font: .88rem/1.55 "SFMono-Regular", Consolas, monospace;
}

.guide-callout {
  margin: 18px 0;
  padding: 15px 18px;
  border-left: 4px solid var(--accent, #75d5ff);
  border-radius: 0 12px 12px 0;
  background: var(--panel, #111821);
  color: var(--muted, #a8b7c5);
}

.guide-callout strong { color: var(--accent, #75d5ff); }

.guide-callout.warning {
  border-left-color: #ffd98a;
}

.guide-callout.warning strong { color: #ffd98a; }

.guide-table-wrap {
  overflow: auto;
  border: 1px solid var(--border, #263545);
  border-radius: 12px;
}

.guide-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: var(--panel, #111821);
}

.guide-table th,
.guide-table td {
  padding: 10px 12px;
  border-top: 1px solid var(--border, #263545);
  text-align: left;
  vertical-align: top;
  font-size: .87rem;
}

.guide-table th {
  color: var(--muted, #a8b7c5);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: .74rem;
}

.guide-table td code {
  color: var(--accent, #75d5ff);
}

.guide-details {
  margin: 12px 0;
  border: 1px solid var(--border, #263545);
  border-radius: 13px;
  overflow: hidden;
  background: var(--panel, #111821);
}

.guide-details summary {
  cursor: pointer;
  list-style: none;
  padding: 13px 15px;
  font-weight: 800;
  background: var(--panel-2, #17212d);
}

.guide-details summary::-webkit-details-marker { display: none; }
.guide-details summary::before {
  content: "+";
  color: var(--accent, #75d5ff);
  margin-right: 8px;
}
.guide-details[open] summary::before { content: "−"; }

.guide-details .guide-table-wrap {
  border: 0;
  border-radius: 0;
}

.guide-pager {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 34px;
}

.guide-pager a,
.guide-index-card {
  border: 1px solid var(--border, #263545);
  background: var(--panel, #111821);
  border-radius: 12px;
}

.guide-pager a {
  padding: 10px 13px;
}

.guide-index {
  display: grid;
  gap: 12px;
}

.guide-index-card {
  display: block;
  padding: 18px;
}

.guide-index-card strong {
  display: block;
  color: var(--text, #eaf2f8);
  margin-bottom: 4px;
}

.guide-index-card span {
  color: var(--muted, #a8b7c5);
}

.guide-badge {
  display: inline-block;
  padding: 2px 7px;
  margin-left: 6px;
  border: 1px solid var(--border, #263545);
  border-radius: 999px;
  color: var(--muted, #a8b7c5);
  font-size: .7rem;
}

.guide-param-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 10px;
}

.guide-param {
  border: 1px solid var(--border, #263545);
  border-radius: 12px;
  background: var(--panel, #111821);
  padding: 13px;
}

.guide-param code {
  color: var(--accent, #75d5ff);
  font-weight: 700;
}

.guide-param small {
  display: block;
  margin-top: 4px;
  color: var(--muted, #a8b7c5);
}

@media (max-width: 900px) {
  .guide-shell { grid-template-columns: 1fr; }
  .guide-sidebar {
    position: static;
    max-height: none;
  }
  .guide-stats,
  .guide-cards,
  .guide-param-grid { grid-template-columns: 1fr; }
}

.guide-sidebar a.current {
  color: var(--text, #eaf2f8);
  background: var(--panel-2, #17212d);
  font-weight: 800;
}