#src-checker {
  --bg: #fafafa;
  --fg: #0a0a0a;
  --muted: #71717a;
  --border: #e4e4e7;
  --card: #fff;
  --accent: #0a0a0a;
  --hl: #fef08a;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-family: var(--sans);
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  letter-spacing: -0.01em;
  margin: 0 calc(50% - 50vw);
  width: 100vw;
  padding: 80px 20px 120px;
  box-sizing: border-box;
}

#src-checker *, #src-checker *::before, #src-checker *::after { box-sizing: border-box; }
#src-checker .wrap { max-width: 880px; margin: 0 auto; }

#src-checker .bp-badge {
  display: inline-block;
  text-align: center;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
}

#src-checker .hero {
  text-align: center;
  padding: 80px 0 72px;
  position: relative;
  background: var(--bp-color, #e4e4e7);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 0 calc(50% - 50vw) 32px;
  width: 100vw;
}
#src-checker .hero-label {
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 16px;
  font-family: var(--mono);
}
#src-checker .hero-val {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(48px, 12vw, 120px);
  line-height: 1;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
}
#src-checker .hero-x {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.7em;
  margin: 0 0.1em;
}
#src-checker .hero-unit {
  font-size: 0.3em;
  color: var(--muted);
  font-weight: 500;
  margin-left: 0.2em;
}
#src-checker .hero-sub {
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
  font-family: var(--mono);
}
#src-checker .hero-ruler {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 36px;
  pointer-events: none;
}
#src-checker .hero-ticks {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 36px;
}
#src-checker .hero-tick {
  position: absolute;
  top: 0;
  width: 1px;
  height: 8px;
  background: #71717a;
}
#src-checker .hero-tick.major { height: 14px; background: #27272a; }
#src-checker .hero-tick .lbl {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 9px;
  color: #3f3f46;
  white-space: nowrap;
}
#src-checker .hero-tick.start .lbl { left: 2px; transform: none; }
#src-checker .hero-tick.end .lbl   { left: auto; right: 2px; transform: none; }

#src-checker[data-bp="2xs"] { --bp-color: #fbcfe8; }
#src-checker[data-bp="xs"]  { --bp-color: #f9a8d4; }
#src-checker[data-bp="sm"]  { --bp-color: #fdba74; }
#src-checker[data-bp="md"]  { --bp-color: #fde047; }
#src-checker[data-bp="lg"]  { --bp-color: #86efac; }
#src-checker[data-bp="xl"]  { --bp-color: #93c5fd; }
#src-checker[data-bp="2xl"] { --bp-color: #c4b5fd; }
#src-checker[data-bp="3xl"] { --bp-color: #f0abfc; }
#src-checker[data-bp="4xl"] { --bp-color: #67e8f9; }
#src-checker[data-bp="5xl"] { --bp-color: #a5b4fc; }
#src-checker[data-bp="6xl"] { --bp-color: #fcd34d; }

#src-checker section { margin-bottom: 40px; }
#src-checker .srcc-h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
}
#src-checker .metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
#src-checker .metric {
  padding: 14px 16px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
#src-checker .metric:last-child { border-right: none; }
#src-checker .metric .k {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--mono);
  margin-bottom: 4px;
}
#src-checker .metric .v {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

#src-checker .tabs { display: flex; gap: 4px; margin-bottom: 12px; }
#src-checker .tab {
  background: none;
  border: 1px solid var(--border);
  padding: 8px 14px;
  font-size: 13px;
  font-family: var(--sans);
  cursor: pointer;
  border-radius: 6px;
  color: var(--muted);
  font-weight: 500;
}
#src-checker .tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
#src-checker table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13px;
}
#src-checker th, #src-checker td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}
#src-checker th {
  background: #f4f4f5;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.05em;
}
#src-checker tr:last-child td { border-bottom: none; }
#src-checker tr.match td {
  background: var(--hl);
  font-weight: 700;
}
#src-checker td.name { font-family: var(--sans); }

#src-checker .more-btn {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 10px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--fg);
  cursor: pointer;
  font-weight: 500;
}
#src-checker .more-btn:hover { border-color: #a1a1aa; }
#src-checker .more-btn[hidden] { display: none; }

@keyframes srcCheckerSlideIn {
  from { opacity: 0; transform: translateX(-12px); }
  to   { opacity: 1; transform: translateX(0); }
}
#src-checker .anim { animation: srcCheckerSlideIn .5s cubic-bezier(.2,.7,.2,1) both; }

@media (max-width: 1023px) {
  #src-checker { padding: 56px 18px 80px; }
  #src-checker .hero { padding: 56px 0 44px; }
}
@media (max-width: 639px) {
  #src-checker { padding: 36px 14px 60px; }
  #src-checker th, #src-checker td { padding: 8px 10px; font-size: 12px; }
  #src-checker .metric { padding: 12px 14px; }
  #src-checker .hero { padding: 44px 0 32px; }
}