:root {
  --bg: #0c1016;
  --bg-2: #141a24;
  --bg-3: #1b2433;
  --line: #2a3548;
  --text: #e8eef8;
  --muted: #93a0b5;
  --faint: #6c7a90;
  --cyan: #3ee0c6;
  --amber: #f0b45a;
  --violet: #9b8cff;
  --rose: #ff7b8a;
  --lcd: #5aa7ff;
  --oled: #3ee0c6;
  --microled: #f0b45a;
  --microoled: #9b8cff;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "IBM Plex Sans JP", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: var(--sans);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(62, 224, 198, 0.08), transparent 50%),
    radial-gradient(900px 500px at 110% 0%, rgba(240, 180, 90, 0.08), transparent 45%),
    var(--bg);
  min-height: 100vh;
}

a { color: var(--cyan); }
button, select { font-family: inherit; }

.wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }

.hero {
  padding: 48px 0 28px;
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 32px;
  align-items: end;
}
.kicker {
  color: var(--amber);
  letter-spacing: 0.16em;
  font-size: 12px;
  text-transform: uppercase;
  margin: 0 0 10px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.2;
  margin: 0 0 14px;
  font-weight: 600;
}
.lede { color: var(--muted); margin: 0; max-width: 58ch; line-height: 1.7; }

.stack-preview {
  background: linear-gradient(180deg, #1a2230, #10151d);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.stack-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 10px;
  align-items: center;
  margin: 6px 0;
}
.stack-row b { font-size: 11px; color: var(--faint); font-weight: 500; }
.stack-bar {
  height: 26px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 12px;
  color: #081018;
  font-weight: 600;
}
.stack-bar.l1 { background: #7ec8ff; }
.stack-bar.l2 { background: #f0b45a; }
.stack-bar.l3 { background: #d9a3ff; }
.stack-bar.l4 { background: #3ee0c6; }
.stack-bar.l5 { background: #9bdc7c; }
.stack-bar.l6 { background: #ffb4c0; }

.tabs {
  display: flex;
  gap: 8px;
  padding: 8px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  width: max-content;
  margin: 10px 0 28px;
}
.tabs button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
}
.tabs button[aria-selected="true"] {
  background: var(--bg-3);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line);
}

.panel { display: none; padding-bottom: 80px; }
.panel.active { display: block; }

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin: 8px 0 18px;
}
.section-head h2 { margin: 0 0 6px; font-size: 24px; }
.section-head p { margin: 0; color: var(--muted); }

.layer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.layer-nav a, .ghost, .chip, .expand {
  text-decoration: none;
  color: var(--muted);
  border: 1px solid var(--line);
  background: var(--bg-2);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
}
.ghost, .expand { cursor: pointer; color: var(--text); }
.ghost:hover, .expand:hover, .chip:hover { border-color: var(--cyan); }

.layer-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 16px;
}
.layer-card h3 { margin: 0 0 6px; }
.layer-card .summary { color: var(--muted); margin: 0 0 16px; }
.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.option {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}
.option h4 { margin: 0 0 6px; font-size: 15px; }
.option p { margin: 0 0 10px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.traits { display: flex; flex-wrap: wrap; gap: 6px; }
.trait {
  font-size: 11px;
  color: #d5e7e2;
  background: rgba(62, 224, 198, 0.12);
  border-radius: 999px;
  padding: 3px 8px;
}
.families { margin-top: 10px; font-size: 11px; color: var(--faint); font-family: var(--mono); }

.fam { display: inline-block; padding: 1px 6px; border-radius: 999px; margin-right: 4px; color: #081018; }
.fam.lcd { background: var(--lcd); }
.fam.oled { background: var(--oled); }
.fam.microled { background: var(--microled); }
.fam.microoled { background: var(--microoled); }

.compare-controls, .builder {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 18px;
}
.builder-layer { margin-bottom: 14px; }
.builder-layer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.builder-layer-head strong { font-size: 14px; }
.hint { color: var(--faint); font-size: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  cursor: pointer;
  color: var(--text);
}
.chip[aria-pressed="true"] {
  background: rgba(62, 224, 198, 0.16);
  border-color: var(--cyan);
  color: #d9fff7;
}
.chip.wildcard { opacity: 0.72; border-style: dashed; }
.chip.incompat { opacity: 0.38; }

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  margin: 8px 0 16px;
  color: var(--muted);
  font-size: 14px;
}
.status-row b { color: var(--text); }

.combo-grid, .product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 16px; }
.price { color: var(--amber); font-weight: 600; margin: 0 0 10px; }
.meta { color: var(--faint); font-size: 12px; margin: 0 0 12px; line-height: 1.5; }
.bars { display: grid; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 92px 1fr 72px; gap: 8px; align-items: center; font-size: 11px; color: var(--muted); }
.bar-track { height: 6px; background: #0d131c; border-radius: 99px; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, var(--cyan), var(--amber)); border-radius: 99px; }
.filled-note { margin: 10px 0 0; font-size: 12px; color: var(--faint); }

.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 16px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--bg-3); position: sticky; top: 0; }
td .sub { color: var(--faint); font-size: 12px; }

.empty {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 16px;
}

.footer {
  color: var(--faint);
  font-size: 12px;
  padding: 10px 0 40px;
  line-height: 1.6;
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .tabs { width: 100%; overflow: auto; }
  .bar-row { grid-template-columns: 1fr; }
}