/* Shared styles for project / demo pages (e.g. /maringba/, /musicassistant/).
   Self-contained, matches the /home/ aesthetic. */

:root {
  --ink: #1c1d21;
  --muted: #6a6f78;
  --faint: #9aa0a8;
  --accent: #2f5b8f;
  --rule: #e7e8ea;
  --bg: #fdfdfc;
  --card: #ffffff;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
a:hover { border-bottom-color: var(--accent); }

.proj-wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 2rem 5rem;
}

.proj-back {
  display: inline-block;
  margin-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.proj-back:hover { color: var(--accent); }

/* ---- Hero ---- */
.proj-hero { text-align: center; margin-bottom: 2.5rem; }
.proj-title {
  margin: 0 0 1rem;
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.proj-authors { margin: 0 0 0.4rem; font-size: 1.02rem; }
.proj-authors .me { font-weight: 700; }
.proj-venue { margin: 0 0 0.3rem; color: var(--muted); font-size: 0.95rem; }
.proj-award { color: #b4451f; font-weight: 600; }

.proj-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.4rem;
}
.proj-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
}
.proj-btn:hover { background: var(--ink); color: #fff; border-bottom-color: var(--ink); }

/* ---- Media / figures ---- */
.proj-figure { margin: 0 0 2.5rem; text-align: center; }
.proj-figure img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--rule);
}
.proj-figure figcaption {
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.proj-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 0 0 2.5rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--rule);
}
.proj-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Placeholder for assets not yet provided. */
.proj-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 220px;
  margin: 0 0 2.5rem;
  padding: 2rem;
  border: 1.5px dashed var(--rule);
  border-radius: 8px;
  color: var(--faint);
  font-size: 0.9rem;
  background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(0,0,0,0.012) 12px, rgba(0,0,0,0.012) 24px);
}

/* ---- Sections ---- */
.proj-section { margin-top: 3rem; }
.proj-section > h2 {
  margin: 0 0 1.1rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--faint);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}
.proj-section p { margin: 0 0 1rem; }

/* ---- Audio example cards ---- */
.proj-audio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}
.proj-audio-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 1rem 1.1rem 1.1rem;
}
.proj-audio-song { font-weight: 600; font-size: 0.98rem; margin: 0 0 0.15rem; }
.proj-audio-context { color: var(--muted); font-size: 0.85rem; margin: 0 0 0.7rem; }
.proj-audio-card audio { width: 100%; height: 38px; }

/* ---- Citation ---- */
.proj-cite { position: relative; }
.proj-cite pre {
  margin: 0;
  background: #f6f7f8;
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #2b2d31;
}
.proj-copy {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  color: var(--muted);
  cursor: pointer;
}
.proj-copy:hover { color: var(--accent); border-color: var(--accent); }

/* ---- Footer ---- */
.proj-footer {
  margin-top: 3.5rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--rule);
  color: var(--faint);
  font-size: 0.83rem;
  text-align: center;
}

@media (max-width: 620px) {
  .proj-wrap { padding: 1.5rem 1.2rem 3.5rem; }
  .proj-title { font-size: 1.6rem; }
  .proj-audio-grid { grid-template-columns: 1fr; }
}

/* ---- Poster → play video player (shared component) ---- */
.vplayer {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #05070d;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--rule);
  cursor: pointer;
  margin-bottom: 2.5rem;
}
.vplayer-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.vplayer-play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 78px; height: 78px;
  border: none;
  border-radius: 50%;
  background: rgba(20, 24, 32, 0.62);
  color: #fff;
  font-size: 1.5rem;
  padding-left: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  transition: background 0.2s ease, transform 0.2s ease;
}
.vplayer:hover .vplayer-play { background: rgba(47, 91, 143, 0.85); transform: translate(-50%, -50%) scale(1.06); }
.vplayer-media { position: absolute; inset: 0; width: 100%; height: 100%; background: #000; }
.vplayer-frame { position: absolute; inset: 0; }
.vplayer-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---- Saliency matrix ---- */
.mtx-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.mtx { border-collapse: collapse; width: 100%; min-width: 520px; }
.mtx th, .mtx td { padding: 0.6rem 0.7rem; text-align: center; border-bottom: 1px solid var(--rule); }
.mtx thead th {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--faint);
}
.mtx thead th.mtx-standard { color: #b0b5bc; font-style: italic; }
.mtx tbody th {
  text-align: left;
  font-weight: 600;
  font-size: 0.92rem;
  white-space: nowrap;
  padding-right: 1.2rem;
}
.mtx-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: #fff;
  color: var(--accent);
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.mtx-btn:hover { border-color: var(--accent); }
.mtx-btn.is-playing { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---- Lead paragraph (overview under the hero video) ---- */
.proj-lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--ink);
  margin: 0 0 2.6rem;
}
@media (max-width: 620px) { .proj-lead { font-size: 1.08rem; } }

/* ---- Saliency matrix player bar ---- */
.mtx-player {
  margin-top: 1.5rem;
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 0.9rem 1.1rem 1rem;
  background: #fff;
}
.mtx-player[hidden] { display: none; }
.mtx-player-top { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.75rem; }
.mtx-pp {
  flex: 0 0 auto;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: #fff;
  color: var(--accent);
  font-size: 0.75rem;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
.mtx-pp:hover { border-color: var(--accent); }
.mtx-player-label { flex: 1 1 auto; min-width: 0; font-weight: 600; font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mtx-player-time { flex: 0 0 auto; color: var(--muted); font-size: 0.82rem; font-variant-numeric: tabular-nums; }
.mtx-timeline {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: #e9ebee;
  cursor: pointer;
  touch-action: none;
}
.mtx-fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--accent); border-radius: 999px; }
.mtx-marker {
  position: absolute;
  top: 50%;
  width: 14px; height: 14px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid #fff;
  background: #e0a33a;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.12);
  cursor: pointer;
  padding: 0;
}
.mtx-marker:hover { background: #c98a1f; }
.mtx-hint { margin-top: 0.6rem; color: var(--faint); font-size: 0.78rem; }
.mtx-hint::first-letter { color: #e0a33a; }

/* ---- Approach walkthrough ---- */
.wt { margin-top: 0.5rem; }
.wt-step { display: flex; gap: 1rem; padding: 1.4rem 0; border-top: 1px solid var(--rule); }
.wt-step:first-child { border-top: none; padding-top: 0.5rem; }
.wt-num {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 700;
}
.wt-body { flex: 1 1 auto; min-width: 0; }
.wt-title { margin: 0 0 0.2rem; font-weight: 600; font-size: 1.02rem; }
.wt-desc { margin: 0 0 0.8rem; color: var(--muted); font-size: 0.92rem; }
.wt-audios { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.8rem; }
.wt-audio { background: var(--card); border: 1px solid var(--rule); border-radius: 8px; padding: 0.7rem 0.85rem; }
.wt-audio .lab { display: block; font-size: 0.82rem; margin: 0 0 0.4rem; color: var(--muted); }
.wt-audio.after .lab { color: var(--accent); font-weight: 600; }
.wt-audio audio { width: 100%; height: 34px; }

/* ---- Matrix scheduling disclaimer ---- */
.mtx-note {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.7rem 0 0;
  padding: 0.55rem 0.75rem;
  border-left: 3px solid #e0a33a;
  background: rgba(224, 163, 58, 0.08);
  border-radius: 0 6px 6px 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}
.mtx-note-badge {
  flex: 0 0 auto;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #a9741a;
  background: rgba(224, 163, 58, 0.22);
  border-radius: 4px;
  padding: 0.08rem 0.4rem;
  margin-top: 0.05rem;
}

/* Walkthrough step figure */
.wt-fig {
  display: block;
  width: 100%;
  max-width: 620px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  margin: 0 0 0.9rem;
  background: #fff;
}

/* Audio Examples row: cards beside the Drake meme */
.ax-row { display: flex; gap: 1.5rem; align-items: flex-start; }
.ax-row .proj-audio-grid { flex: 1 1 auto; min-width: 0; }
.ax-meme {
  flex: 0 0 auto;
  width: 240px;
  border-radius: 10px;
  border: 1px solid var(--rule);
}
@media (max-width: 700px) {
  .ax-row { flex-direction: column; }
  .ax-meme { width: 100%; max-width: 300px; align-self: center; }
}

/* Comparison blocks (project pages) */
.cmp { padding: 1.3rem 0; border-top: 1px solid var(--rule); }

/* Compact (non-hero) example grid + expand button */
.more-btn {
  margin-top: 1rem;
  background: none;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  cursor: pointer;
}
.more-btn:hover { border-color: var(--accent); background: rgba(47, 91, 143, 0.05); }
.proj-audio-grid.compact { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 0.6rem; margin-top: 1rem; }
.proj-audio-grid.compact .proj-audio-card { padding: 0.6rem 0.7rem; }
.proj-audio-grid.compact .proj-audio-song { font-size: 0.85rem; margin-bottom: 0.4rem; }
.proj-audio-grid.compact audio { height: 32px; }

/* Display math blocks in the approach walkthrough */
.wt-math { overflow-x: auto; overflow-y: hidden; margin: 0.4rem 0 1rem; }
.wt-math mjx-container { margin: 0.3rem 0 !important; }

/* Side-by-side figure row (project pages) */
.fig-row { display: flex; flex-wrap: wrap; gap: 1.3rem; align-items: flex-start; }
.fig-row .proj-figure { flex: 1 1 300px; margin: 0 0 1.5rem; }

/* Bulleted list in project prose */
.proj-list { margin: 0 0 1rem; padding-left: 1.2rem; }
.proj-list li { margin: 0 0 0.4rem; }

/* Walkthrough lyric line + audio (MultiVerse) */
.wt-lyric {
  margin: 0.15rem 0 0.7rem;
  padding: 0.55rem 0.9rem;
  border-left: 3px solid var(--accent);
  background: #f6f7f8;
  border-radius: 0 6px 6px 0;
  font-style: italic;
  color: var(--ink);
}
.wt-step audio { width: 100%; max-width: 440px; height: 36px; display: block; }