/* Orb Studio — Guide page (orbstudio.space/guide/)
   Layout + typography only — tokens, header, footer, buttons, dots/aurora
   all come from site.css, loaded first. */

.guide-hero {
  padding: 132px 0 40px;
  border-bottom: 1px solid var(--line-soft);
}
.guide-hero h1 { margin: 10px 0 12px; font-size: clamp(2.2rem, 4.4vw, 3.2rem); }
.guide-hero .lead { color: var(--muted); max-width: 42em; }
.guide-hero .lead strong { color: var(--text); }

.guide-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 28px 120px;
}

/* ---------- sidebar ---------- */

.guide-sidebar {
  position: sticky;
  top: 84px;
  max-height: calc(100svh - 104px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.guide-search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.guide-search-box svg {
  position: absolute; left: 13px;
  color: var(--muted);
  pointer-events: none;
}
#guide-search {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--rim);
  background: rgba(16, 20, 42, 0.6);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px 10px 36px;
  transition: border-color 0.2s, background 0.2s;
}
#guide-search::placeholder { color: var(--muted); }
#guide-search:focus {
  outline: none;
  border-color: rgba(201, 107, 255, 0.5);
  background: rgba(16, 20, 42, 0.85);
}

.guide-nav {
  overflow-y: auto;
  padding-right: 4px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.guide-nav-group { display: flex; flex-direction: column; gap: 2px; }
.guide-nav-label {
  margin: 4px 0 4px 12px;
  color: var(--violet);
}
.guide-nav-link {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  padding: 7px 12px;
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}
.guide-nav-link:hover { color: var(--rim); background: rgba(159, 190, 255, 0.05); }
.guide-nav-link.active {
  color: var(--rim);
  background: rgba(201, 107, 255, 0.1);
  border-left-color: var(--violet);
  font-weight: 500;
}
.guide-search-empty {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 6px 12px;
}

.guide-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--rim);
  background: rgba(16, 20, 42, 0.7);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 14px;
  cursor: pointer;
}
.guide-nav-toggle svg { transition: transform 0.2s; }
.guide-nav-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }

/* ---------- document ---------- */

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

.guide-section { padding-top: 8px; }
.guide-section:not(:first-child) {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--line-soft);
}
.guide-section-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 28px;
}

.guide-article {
  scroll-margin-top: 96px;
  padding: 34px 0;
}
.guide-article:not(:first-child) { border-top: 1px solid var(--line-soft); }
.guide-article > h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--rim);
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}

.guide-article-body { color: var(--text); font-size: 1rem; line-height: 1.7; }
.guide-article-body > * + * { margin-top: 16px; }
.guide-article-body h4 {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 600;
  color: var(--rim);
  margin-top: 28px !important;
}
.guide-article-body h5 {
  font-family: var(--font-display);
  font-size: 0.98rem; font-weight: 600;
  color: var(--glass);
  margin-top: 20px !important;
}
.guide-article-body p { color: var(--text); }
.guide-article-body ul, .guide-article-body ol { padding-left: 1.4em; color: var(--text); }
.guide-article-body li { padding-left: 0.2em; }
.guide-article-body li + li { margin-top: 8px; }
.guide-article-body li::marker { color: var(--violet); }
.guide-article-body strong { color: var(--rim); }
.guide-article-body a.guide-link { color: var(--cyan); border-bottom: 1px solid rgba(125, 227, 255, 0.3); }
.guide-article-body a.guide-link:hover { border-color: var(--cyan); }
.guide-article-body a[target="_blank"] { color: var(--violet); }
.guide-article-body a[target="_blank"]:hover { text-decoration: underline; }
.guide-article-body .ext-mark { font-size: 0.75em; margin-left: 1px; opacity: 0.7; }

.guide-callout {
  display: block;
  background: rgba(125, 227, 255, 0.06);
  border-left: 2px solid var(--cyan);
  border-radius: 0 10px 10px 0;
  padding: 12px 16px;
  color: var(--glass);
  font-size: 0.95rem;
}

.guide-article-body pre {
  background: rgba(7, 6, 13, 0.7);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
}
.guide-article-body pre code {
  white-space: pre;
  background: none; border: none; padding: 0;
  color: var(--rim);
}
.guide-article-body code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: rgba(159, 190, 255, 0.1);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0.1em 0.42em;
  color: var(--rim);
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .guide-shell { grid-template-columns: 1fr; gap: 20px; padding: 28px 20px 90px; }
  .guide-nav-toggle { display: flex; }
  .guide-sidebar {
    position: static; max-height: none;
  }
  .guide-nav {
    display: none;
    max-height: 60vh;
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    padding: 14px;
    background: rgba(16, 20, 42, 0.5);
  }
  .guide-sidebar.open .guide-nav { display: flex; }
  .guide-hero { padding: 112px 0 32px; }
}