/* ============================================================
   ModelDirectory.org — Model Detail Page Styles
   ============================================================ */

/* ── Breadcrumb ── */
.breadcrumb-bar {
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  padding: 10px 0;
}
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.8rem; color: var(--text-3);
}
.breadcrumb a { color: var(--text-3); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--text-2); }
.breadcrumb span:not(a) { color: var(--text-3); }

/* ── Page Layout ── */
.model-page { padding: 40px 0 64px; }

.model-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}

/* ════════════════════════════════════════
   VIEWER
════════════════════════════════════════ */
.viewer-wrap {
  position: relative;               /* anchor for absolute controls */
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 24px;
  background: #0d0f14;
}

/* Placeholder shown before Three.js loads */
.viewer-placeholder {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #0d0f14;
  display: flex; align-items: center; justify-content: center;
}

/* Active state: Three.js canvas fills the container.
   aspect-ratio keeps height consistent; Three.js manages canvas px dimensions. */
.viewer-placeholder.viewer-active {
  aspect-ratio: 16 / 10;
  display: block;
  position: relative;
  z-index: 0;
}

/* Three.js canvas: just ensure block layout; never override px dimensions */
.viewer-placeholder.viewer-active canvas {
  display: block;
}

.viewer-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,.06) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.viewer-center {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-3);
}
.viewer-icon  { width: 56px; height: 56px; opacity: .3; }
.viewer-label { font-size: 0.9rem; font-weight: 600; color: var(--text-2); }
.viewer-sub   { font-size: 0.78rem; color: var(--text-3); text-align: center; max-width: 220px; }

/* Controls toolbar — overlaid bottom-right of viewer-wrap */
.viewer-controls {
  position: absolute; bottom: 12px; right: 12px; z-index: 9999;
  display: flex; align-items: center; gap: 4px;
  background: rgba(8,8,14,.85); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 4px;
  transform: translateZ(0);        /* force GPU compositing layer above WebGL canvas */
}
/* On mobile, move toolbar to bottom-left so it doesn't cover ViewShaper's AR button */
@media (max-width: 768px) {
  .viewer-controls { right: auto; left: 12px; }
}

.viewer-btn {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px; color: var(--text-3);
  background: transparent; border: none; cursor: pointer;
  transition: all var(--transition);
}
.viewer-btn:hover  { background: rgba(255,255,255,.08); color: var(--text); }
.viewer-btn.active { background: rgba(99,102,241,.2);   color: var(--accent); }
.viewer-btn svg    { width: 14px; height: 14px; pointer-events: none; }
.viewer-sep { width: 1px; height: 20px; background: rgba(255,255,255,.08); margin: 0 2px; }

/* ════════════════════════════════════════
   FILES SECTION
════════════════════════════════════════ */
.files-section {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  margin-bottom: 24px;
}
.files-section h3 { margin-bottom: 14px; font-size: 0.95rem; }

.file-list { display: flex; flex-direction: column; gap: 8px; }

.file-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: var(--radius); transition: border-color var(--transition);
}
.file-row:hover { border-color: var(--border-2); }

.file-icon { color: var(--text-3); flex-shrink: 0; }
.file-icon svg { width: 20px; height: 20px; }

.file-info { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.file-name { font-size: 0.85rem; font-weight: 500; color: var(--text); }
.file-size { font-size: 0.75rem; color: var(--text-3); }

.file-fmt-badge {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 3px 8px; border-radius: 4px;
  background: var(--bg-4); color: var(--text-3); border: 1px solid var(--border);
  flex-shrink: 0;
}

.btn-download {
  flex-shrink: 0; padding: 8px 16px !important; font-size: 0.82rem !important;
  display: flex; align-items: center; gap: 6px;
}

/* Unavailable file row (crawled models — file not redistributed) */
.file-row--unavailable {
  opacity: .75;
  cursor: default;
}
.file-row--unavailable:hover { border-color: var(--border); }

.file-no-dl {
  display: flex; align-items: flex-start; gap: 9px;
  padding: 8px 16px 10px;
  font-size: 0.79rem; color: var(--text-3); line-height: 1.55;
}
.file-no-dl svg { flex-shrink: 0; margin-top: 2px; }
.file-no-dl a { color: var(--accent); }
.file-no-dl a:hover { text-decoration: underline; }

/* ════════════════════════════════════════
   COMMENTS
════════════════════════════════════════ */
.comments-section {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
}
.comments-section h3 {
  margin-bottom: 16px; font-size: 0.95rem;
  display: flex; align-items: center; gap: 8px;
}
.comment-count {
  background: var(--bg-4); color: var(--text-3);
  font-size: 0.75rem; padding: 1px 7px; border-radius: 999px;
  border: 1px solid var(--border);
}
.comment-empty { color: var(--text-3); font-size: 0.85rem; margin-bottom: 14px; }
.comment-form { display: flex; gap: 8px; margin-bottom: 8px; }
.comment-form input { flex: 1; height: 36px; font-size: 0.85rem !important; }
.comment-form input:disabled { opacity: .5; cursor: not-allowed; }
.comment-login-note { font-size: 0.78rem; color: var(--text-3); }
.comment-login-note a { color: var(--accent); }

/* ════════════════════════════════════════
   SIDEBAR
════════════════════════════════════════ */
.model-sidebar {
  position: sticky; top: 76px;
  display: flex; flex-direction: column; gap: 10px;
}

/* Top stacked card — clips corners on the whole group */
.sidebar-top-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
}

.sidebar-title-block {
  background: var(--bg-2); border: 1px solid var(--border);
  border-bottom: none;
  padding: 20px 20px 16px;
}
.model-title {
  font-size: 1.15rem; font-weight: 700; letter-spacing: -0.02em;
  line-height: 1.35; margin-bottom: 8px; color: var(--text);
}
.model-creator-line {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.82rem; margin-bottom: 14px;
}
.creator-by { color: var(--text-3); }
.creator-link { color: var(--accent); font-weight: 500; }
.creator-link:hover { text-decoration: underline; }
.creator-verified {
  color: var(--green); font-size: 0.72rem;
  background: var(--green-dim); padding: 1px 6px;
  border-radius: 4px; border: 1px solid rgba(16,185,129,.2);
}
.model-actions {
  display: flex; gap: 6px;
}
.action-btn {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.8rem; font-weight: 500; color: var(--text-2);
  background: var(--bg-3); border: 1px solid var(--border-2);
  border-radius: var(--radius); padding: 6px 12px;
  transition: all var(--transition);
}
.action-btn:hover { color: var(--text); border-color: var(--text-3); }
.action-btn.liked { color: #f87171; border-color: rgba(248,113,113,.3); background: rgba(248,113,113,.08); }

/* Sidebar blocks — base */
.sidebar-block {
  background: var(--bg-2); border: 1px solid var(--border);
  padding: 16px 20px;
}
/* Inside the top stacked card: connect flush (no top border) */
.sidebar-top-card .sidebar-block { border-top: none; }
.sidebar-top-card .model-thumb-block { overflow: hidden; padding: 0; }
/* Standalone bottom cards: full rounded corners */
.model-sidebar > .sidebar-block { border-radius: var(--radius-lg); }

.model-desc { font-size: 0.85rem; color: var(--text-2); line-height: 1.65; }
.model-desc img { max-width: 100%; height: auto; border-radius: var(--radius); }

/* Image placeholder — shown instead of third-party images in crawled descriptions */
.desc-img-placeholder {
  display: block;
  padding: 8px 12px;
  margin: 8px 0;
  background: var(--bg-3);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  font-size: 0.78rem;
  color: var(--text-3);
  font-style: italic;
}

/* Metadata grid */
.meta-grid { display: flex; flex-direction: column; gap: 0; }
.meta-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 0; border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}
.meta-row:last-child { border-bottom: none; }
.meta-label { color: var(--text-3); }
.meta-val { color: var(--text); font-weight: 500; }
.meta-license {
  background: var(--bg-4); color: var(--text-2);
  font-size: 0.72rem; font-weight: 600; padding: 2px 8px;
  border-radius: 4px; border: 1px solid var(--border);
}

/* Proof block */
.proof-block { border-top: none; }
.proof-block-header {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.82rem; font-weight: 600; color: var(--text);
  margin-bottom: 12px;
}
.proof-block-header svg { color: var(--accent); flex-shrink: 0; }
.proof-status {
  margin-left: auto; font-size: 0.7rem; padding: 2px 8px;
  border-radius: 4px;
}
.proof-status.verified {
  background: var(--green-dim); color: var(--green);
  border: 1px solid rgba(16,185,129,.2);
}
.proof-status.unverified {
  background: rgba(245,158,11,.1); color: var(--amber);
  border: 1px solid rgba(245,158,11,.2);
}
.proof-status.registered {
  background: rgba(99,102,241,.12); color: var(--accent);
  border: 1px solid rgba(99,102,241,.25);
}
.proof-detail-rows { display: flex; flex-direction: column; gap: 0; }
.proof-detail-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0; border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
}
.proof-detail-row:last-child { border-bottom: none; }
.proof-detail-row span { color: var(--text-3); }
.proof-detail-row code {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-2);
  background: var(--bg-4); padding: 2px 6px; border-radius: 4px;
  max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
/* Certificate action buttons (Tier 0) */
.proof-actions {
  display: flex; gap: 6px; flex-wrap: wrap;
  margin-top: 10px;
}
.proof-action-btn {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.75rem; font-weight: 500;
  color: var(--text-2); background: var(--bg-4);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 5px 10px; cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}
.proof-action-btn:hover {
  color: var(--accent); background: var(--accent-dim);
  border-color: rgba(99,102,241,.3);
}
.proof-action-btn:disabled {
  opacity: .5; cursor: not-allowed;
}

.proof-link {
  display: inline-block; margin-top: 10px;
  font-size: 0.78rem; color: var(--accent);
  transition: color var(--transition);
}
.proof-link:hover { color: var(--accent-h); }

/* Claim section — standalone rounded card */
.claim-section {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px 20px;
  display: flex; flex-direction: column; gap: 10px;
  font-size: 0.85rem; color: var(--text-2); line-height: 1.55;
}

/* Tags */
.sidebar-block h4 { margin-bottom: 10px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 0.75rem; color: var(--text-3);
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: 4px; padding: 3px 10px;
  transition: all var(--transition); cursor: pointer;
}
.tag:hover { color: var(--text-2); border-color: var(--border-2); }

.sidebar-footer {
  padding: 4px 4px;
}
.report-link { font-size: 0.78rem; color: var(--text-3); transition: color var(--transition); }
.report-link:hover { color: var(--red); }

/* ════════════════════════════════════════
   RELATED SECTION
════════════════════════════════════════ */
.related-section {
  border-top: 1px solid var(--border);
  padding: 48px 0 64px;
  background: var(--bg-2);
}
.related-section h2 { margin-bottom: 24px; }

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 900px) {
  .model-layout { grid-template-columns: 1fr; }
  .model-sidebar { position: static; order: -1; }
}

@media (max-width: 600px) {
  .model-page { padding: 24px 0 48px; }
  .action-btn span { display: none; }
  .action-btn { padding: 8px !important; }
}

/* ── External source link ─────────────────────────────────────────────────── */
.external-source-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--accent, #6366f1);
  text-decoration: none;
  font-weight: 500;
  transition: opacity .15s;
}
.external-source-link:hover { opacity: .75; text-decoration: underline; }

/* ── Visitor sticky CTA bar ── */
.visitor-sticky-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 800;
  background: color-mix(in srgb, var(--bg-2) 96%, transparent);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
  padding: 12px 20px;
  animation: stickySlideUp .3s ease;
}
@keyframes stickySlideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}
.visitor-sticky-inner {
  max-width: 960px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  gap: 16px;
}
.visitor-sticky-text {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.86rem; color: var(--text-2);
}
.visitor-sticky-text strong { color: var(--text); }
.visitor-sticky-cta {
  flex-shrink: 0;
  background: var(--accent); color: #fff;
  font-size: 0.86rem; font-weight: 700;
  padding: 8px 20px; border-radius: 8px;
  text-decoration: none; white-space: nowrap;
  transition: opacity .15s;
}
.visitor-sticky-cta:hover { opacity: .88; color: #fff; }
.visitor-sticky-dismiss {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  font-size: 1.1rem; color: var(--text-3); padding: 4px 8px;
  border-radius: 6px; transition: color .15s, background .15s;
}
.visitor-sticky-dismiss:hover { color: var(--text); background: var(--bg-4); }
@media (max-width: 600px) {
  .visitor-sticky-text { font-size: 0.78rem; }
  .visitor-sticky-text svg { display: none; }
  .visitor-sticky-cta { font-size: 0.8rem; padding: 7px 14px; }
}

/* ── Enhanced proof block for visitors ── */
.proof-block {
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border));
  background: color-mix(in srgb, var(--accent) 3%, var(--bg-2));
  padding: 14px;
  margin-top: 8px;
}
.proof-block-header {
  font-size: 0.84rem;
}
.proof-block-header svg { color: var(--accent); }
.proof-block-num-highlight {
  display: flex; flex-direction: column; align-items: center;
  padding: 10px 0 6px; margin-bottom: 4px;
}
.proof-block-num-big {
  font-family: var(--font-mono); font-size: 1.05rem; font-weight: 700;
  color: var(--accent); letter-spacing: .03em;
}
.proof-block-num-label {
  font-size: 0.68rem; color: var(--text-3); text-transform: uppercase;
  letter-spacing: .07em; margin-top: 2px;
}

/* ── Fullscreen state ── */
.viewer-wrap:fullscreen,
.viewer-wrap:-webkit-full-screen {
  border-radius: 0;
  border: none;
  margin: 0;
  background: #0d0f14;
}
.viewer-wrap:fullscreen .viewer-placeholder,
.viewer-wrap:-webkit-full-screen .viewer-placeholder {
  aspect-ratio: unset;
  height: 100%;
}

/* ── Celebration credits nudge ── */
.celeb-credits-nudge {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.8rem; color: var(--text-3);
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px;
  margin-bottom: 14px;
}
.celeb-upgrade-link {
  margin-left: auto; font-size: 0.78rem; font-weight: 600;
  color: var(--accent); white-space: nowrap;
}
.celeb-upgrade-link:hover { opacity: .8; }