:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #1e293b;
  --text-light: #475569;
  --muted: #64748b;
  --line: #e2e8f0;
  --line-light: #f1f5f9;
  --primary: #3b82f6;
  --primary-light: #dbeafe;
  --hover-bg: #f8fafc;
}

* { box-sizing: border-box; }
html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}
body {
  margin: 0;
  font-family: "IBM Plex Sans", "Noto Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.hero {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px 20px;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.025em;
}

.sub {
  color: var(--text-light);
  margin-top: 12px;
  font-size: 1.05rem;
  line-height: 1.6;
}

main {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 40px;
  display: grid;
  gap: 24px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  min-width: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.2s ease;
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.arch-panel {
  padding: 0;
  width: 100%;
  max-width: 100%;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.arch-wrap {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 0;
  margin: 0;
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.arch {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: auto;
  aspect-ratio: 2094 / 906;
  border-radius: 0;
  border: 0;
  background: #fff;
  display: block;
  object-fit: contain;
}

.link-buttons {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  padding: 12px 24px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--line);
  transition: all 0.2s ease;
  font-size: 0.95rem;
  min-height: 48px;
  white-space: nowrap;
}

.link-btn.hf {
  color: #5a4300;
  background: linear-gradient(135deg, #fff9e6 0%, #fff4bf 100%);
  border-color: #e9d46d;
  box-shadow: 0 2px 8px rgba(233, 212, 109, 0.25);
}

.link-btn.hf:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(233, 212, 109, 0.35);
  border-color: #d4bf5c;
}

.link-btn.dataset {
  color: #064e3b;
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border-color: #7dd3a8;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.18);
}

.link-btn.dataset:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.28);
  border-color: #34d399;
}

.icon { font-size: 1rem; line-height: 1; }

.link-copy {
  display: grid;
  gap: 1px;
  line-height: 1.15;
}

.link-label {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  opacity: 0.72;
}

.icon-svg {
  width: 18px;
  height: 18px;
  display: block;
  flex: 0 0 auto;
  fill: currentColor;
}

.stats {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.table-wrap {
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: 10px;
  background: var(--card);
}

#groups {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.emoji-group {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  padding: 16px;
  min-width: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.2s ease;
}

.emoji-group:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 8px 12px;
}

.group-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  background: var(--primary-light);
  border: 1px solid var(--primary);
  border-radius: 999px;
  padding: 8px 16px;
  color: var(--primary);
  font-size: 0.95rem;
}

.emoji-lg {
  display: inline-block;
  font-size: 1.58rem;
  line-height: 1;
  vertical-align: middle;
}

.group-count {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.sample-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  table-layout: fixed;
}

.sample-table th,
.sample-table td {
  border-bottom: 1px solid var(--line-light);
  padding: 12px 10px;
  text-align: left;
  vertical-align: middle;
  font-size: 0.92rem;
}

.sample-table th {
  position: sticky;
  top: 0;
  background: var(--hover-bg);
  z-index: 1;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid var(--line);
}

.sample-table th.emoji-head,
.sample-table th.audio-head {
  text-align: center;
  width: 46px;
  padding: 8px 2px;
  vertical-align: middle;
}

.sample-table th.audio-head {
  font-size: 0.7rem;
  white-space: nowrap;
  width: 62px;
}

.sample-table th.emoji-head .emoji-lg {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin: 0 auto;
  line-height: 1;
}

.group-row {
  background: var(--card);
  transition: background-color 0.15s ease;
}

.group-row:hover {
  background: var(--hover-bg);
}

.group-row:last-child td {
  border-bottom: none;
}

.text-cell {
  line-height: 1.5;
  word-break: break-word;
  overflow-wrap: break-word;
  color: var(--text);
}

.audio-cell {
  width: 46px;
  text-align: center;
  padding: 8px 4px;
  vertical-align: middle;
}

.audio-cell .play-mini {
  display: flex;
  margin: 0 auto;
}

.missing {
  color: #7a859c;
  font-size: 0.82rem;
}

.play-mini {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  transition: all 0.2s ease;
}

.play-mini:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: scale(1.08);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
}

.play-mini:active {
  transform: scale(1);
}

.play-mini .icon-glyph {
  width: 12px;
  height: 12px;
  fill: var(--primary);
  display: block;
  flex: 0 0 auto;
  transition: fill 0.2s ease;
}

.play-mini:hover .icon-glyph {
  fill: var(--primary);
}

/* Optical: play triangle looks left-heavy */
.play-mini:not(.is-playing) .icon-glyph {
  transform: translateX(0.8px);
}

.play-mini.is-playing {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.play-mini.is-playing .icon-glyph {
  fill: #ffffff;
  transform: translateX(0);
}

.play-mini.is-loading {
  opacity: 0.6;
  cursor: wait;
}

@media (max-width: 900px) {
  .sample-table {
    display: block;
    width: 100%;
    min-width: 0;
  }

  .sample-table thead {
    display: none;
  }

  .sample-table tbody {
    display: block;
  }

  .sample-table tr.group-row {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 8px 6px;
    padding: 10px;
    border-bottom: 1px solid var(--line);
    background: #ffffff;
  }

  .sample-table tr.group-row:last-child {
    border-bottom: 0;
  }

  .sample-table tr.group-row td {
    border-bottom: 0;
    padding: 0;
  }

  .text-cell {
    grid-column: 1 / -1;
    min-width: 0;
    max-width: none;
    line-height: 1.4;
  }

  .audio-cell {
    min-width: 0;
    width: auto;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .audio-cell .play-mini {
    margin: 0;
  }
}

@media (max-width: 640px) {
  .link-buttons {
    align-items: stretch;
    flex-direction: column;
  }

  .link-btn {
    width: 100%;
    white-space: normal;
    text-align: center;
  }

  .sample-table tr.group-row {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .group-head { align-items: flex-start; flex-direction: column; }
}