/* lucUI Website — site layer. Uses lucUI tokens, does not replace components. */
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }
body { padding-top: 96px; }

/* ——— Navbar ——— */
.luc-navbar-brand img { width: clamp(34px, 5vw, 44px); height: auto; }
.luc-navbar-brand span { font-size: clamp(0.95rem, 2.5vw, 1.15rem); white-space: nowrap; }
.luc-navbar-links { align-items: center; }
@media (max-width: 1100px) {
  .luc-navbar-links { gap: var(--space-2); }
  .luc-navbar-link { padding: 0.65rem 0.85rem; font-size: 0.82rem; }
}

/* stage hero tightening: site uses stage inside container */
.luc-stage { min-height: auto; padding: clamp(3rem, 8vw, 5.5rem) clamp(1.25rem, 4vw, 3rem); }

/* ——— Code + preview pair ——— */
.luc-demo-pair { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); align-items: start; }
@media (max-width: 860px) { .luc-demo-pair { grid-template-columns: 1fr; } }
.luc-demo-preview {
  background: var(--luc-surface);
  border: 1px solid var(--glass-edge);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; justify-content: flex-start;
  min-height: 100%;
}
.luc-code-window { position: relative; }
.luc-code-window pre { margin: 0; }
.luc-code-window code { white-space: pre; }

/* copy button inside code header */
.luc-code-window .luc-copy-button { margin-left: auto; }

/* ——— Component showcase grid ——— */
.luc-component-row { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

/* ——— Installation tabs ——— */
.luc-install-tabs { max-width: 760px; }
.luc-install-option { display: grid; gap: var(--space-3); }

/* ——— Docs layout ——— */
/* Content is centered; the nav is a slide-in drawer so the page never looks off-center. */
.luc-docs { display: block; }
.luc-docs-main {
  width: min(100%, 860px);
  margin: 0 auto;
  min-width: 0;
}
.luc-docs-nav {
  position: fixed;
  top: 82px;
  left: 0;
  bottom: 0;
  width: min(320px, 86vw);
  max-height: none;
  overflow-y: auto;
  padding: var(--space-4);
  border: 1px solid var(--glass-edge);
  border-left: none;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: var(--luc-surface-strong, var(--luc-surface));
  backdrop-filter: blur(28px) saturate(180%); -webkit-backdrop-filter: blur(28px) saturate(180%);
  box-shadow: var(--shadow-xl);
  z-index: 1025;
  transform: translateX(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform .28s var(--ease-smooth), opacity .2s, visibility .2s;
}
.luc-docs-nav.open {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}
.luc-docs-nav::-webkit-scrollbar { width: 4px; }
.luc-docs-nav a { display: block; padding: 0.45rem 0.65rem; border-radius: var(--radius-sm); color: var(--text-muted); font-size: var(--text-sm); transition: all .15s; }
.luc-docs-nav a:hover { color: var(--text-light); background: rgba(255,255,255,0.06); }
.luc-docs-nav a.active { color: var(--studio-gold); background: rgba(174,157,93,0.12); border: 1px solid rgba(174,157,93,0.25); }
.luc-docs-nav h4 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin: var(--space-4) 0 var(--space-2); }
.luc-docs-nav h4:first-child { margin-top: 0; }
.luc-docs-backdrop {
  position: fixed;
  inset: 82px 0 0 0;
  background: rgba(2,7,13,0.44);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  z-index: 1024;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s, visibility .2s;
}
.luc-docs-backdrop.open { opacity: 1; visibility: visible; }
.luc-docs-toc {
  position: sticky; top: 104px; align-self: start;
  padding: var(--space-4); border: 1px solid var(--glass-edge); border-radius: var(--radius-lg); background: var(--luc-surface);
  font-size: var(--text-sm);
}
.luc-docs-page { display: grid; grid-template-columns: 1fr 220px; gap: var(--space-6); }
@media (max-width: 1100px) { .luc-docs-page { grid-template-columns: 1fr; } .luc-docs-toc { display: none; } }
.luc-docs-toggle { display: inline-flex !important; }

/* doc content helpers */
.luc-doc-section { scroll-margin-top: 110px; }
.luc-doc-card { padding: var(--space-6); }
.luc-doc-h2 { font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.luc-doc-h3 { font-size: var(--text-xl); margin-bottom: var(--space-2); color: var(--text-light); font-family: var(--font-display); }

/* table for props */
.luc-doc-table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border: 1px solid var(--glass-edge); border-radius: var(--radius-md); }
.luc-doc-table th, .luc-doc-table td { padding: 0.7rem 0.9rem; text-align: left; font-size: var(--text-sm); border-bottom: 1px solid var(--glass-edge); }
.luc-doc-table th { color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; font-size: var(--text-xs); background: rgba(255,255,255,0.04); }
.luc-doc-table tr:last-child td { border-bottom: none; }
.luc-doc-table code { color: var(--designer-azure); font-size: 0.86em; }

/* ——— Tutorials ——— */
.luc-tutorial { display: grid; grid-template-columns: 240px 1fr; gap: var(--space-8); align-items: start; }
.luc-tutorial-nav { position: sticky; top: 104px; max-height: calc(100dvh - 112px); overflow-y: auto; padding: var(--space-4); border: 1px solid var(--glass-edge); border-radius: var(--radius-lg); background: var(--luc-surface); backdrop-filter: blur(24px) saturate(160%); -webkit-backdrop-filter: blur(24px) saturate(160%); }
.luc-tutorial-nav a { display: block; padding: 0.4rem 0.6rem; border-radius: var(--radius-sm); color: var(--text-muted); font-size: var(--text-sm); }
.luc-tutorial-nav a:hover { color: var(--text-light); background: rgba(255,255,255,0.06); }
.luc-tutorial-nav a.active { color: var(--studio-gold); background: rgba(174,157,93,0.12); border: 1px solid rgba(174,157,93,0.25); }
.luc-tutorial-nav h4 { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin: var(--space-4) 0 var(--space-2); }
.luc-step { counter-increment: step; position: relative; padding-left: 2.8rem; }
.luc-step::before { content: counter(step); position: absolute; left: 0; top: 0; width: 2rem; height: 2rem; border-radius: 50%; background: var(--studio-gold); color: var(--luca-navy); display: grid; place-items: center; font-weight: 800; font-family: var(--font-display); font-size: 0.85rem; }
.luc-tutorial-steps { counter-reset: step; display: grid; gap: var(--space-8); }
@media (max-width: 900px) { .luc-tutorial { grid-template-columns: 1fr; } .luc-tutorial-nav { position: static; max-height: none; } }

/* ——— Responsive hardening ——— */
@media (max-width: 640px) {
  body { padding-top: 88px; }
  .luc-container { width: min(100% - 1.25rem, var(--luc-content-width)); }
  .luc-grid-cols-2, .luc-grid-cols-3 { grid-template-columns: 1fr; }
  .luc-code-body { font-size: 0.82rem; }
  .luc-footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .luc-btn { min-height: 44px; }
}
@media (max-width: 480px) {
  .luc-stage h1 { line-height: 1.08; }
  .luc-footer { padding: var(--space-8) var(--space-4); }
}
@media (hover: none) and (pointer: coarse) {
  .luc-btn:active { transform: scale(0.97); }
}