@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Dark theme is the default — applied when the user has no preference,
   when prefers-color-scheme is dark, or when detection fails. */
:root {
  --bg: #0f1419;
  --fg: #e4e7eb;
  --fg-muted: #8a93a0;
  --border: #2a3340;
  --surface: #161b22;
  --surface-alt: #1d242e;
  --input-bg: #1d242e;
  --accent: #4d8af0;
  --accent-bg: #1a2a44;
  --gold-bg: #5e4818;
  --silver-bg: #2d3742;
  --bronze-bg: #4a331a;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --radius: 8px;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #111418;
    --fg-muted: #5b6470;
    --border: #e4e7eb;
    --surface: #f7f8fa;
    --surface-alt: #eef1f4;
    --input-bg: #ffffff;
    --accent: #1a5ce8;
    --accent-bg: #e6edfa;
    --gold-bg: #fcf3d7;
    --silver-bg: #eef1f4;
    --bronze-bg: #f4e7d8;
    --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  }
}

/* Tell the UA to draw built-in widgets (scrollbars, form controls)
   in the matching scheme. */
html { color-scheme: dark light; }

.wip-banner {
  background: #f0c850;
  color: #1a1206;
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.6rem 1rem;
  border-bottom: 2px solid #b8861b;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-ui);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 1rem;
}
.site-title {
  font-size: 1.75rem;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}
.site-nav {
  margin: 0 0 1rem;
  font-size: 0.95rem;
}
.site-nav strong { color: var(--fg); }
.site-nav a {
  color: var(--accent);
  text-decoration: none;
}
.site-nav a:hover { text-decoration: underline; }
.site-nav-sep {
  color: var(--fg-muted);
  margin: 0 0.35rem;
}
.site-tagline {
  margin: 0;
  color: var(--fg-muted);
  max-width: 65ch;
}
.site-tagline em { font-style: italic; color: var(--fg); }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
@media (min-width: 720px) {
  .controls { grid-template-columns: 1.6fr 1fr; }
}
.control-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.baseline-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}
#baseline {
  width: 7.5rem;
  padding: 0.45rem 0.6rem;
  font: inherit;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--fg);
}
#baseline:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.presets {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.preset-btn, .res-btn {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--input-bg);
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
  color: var(--fg);
}
.preset-btn:hover, .res-btn:hover { border-color: var(--accent); color: var(--accent); }
.preset-active, .res-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.preset-active:hover, .res-active:hover { color: #fff; border-color: var(--accent); }
.control-hint {
  margin: 0.5rem 0 0;
  color: var(--fg-muted);
  font-size: 0.875rem;
}
.resolution-row {
  display: inline-flex;
  gap: 0.4rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.gpu-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.gpu-table th, .gpu-table td {
  padding: 0.7rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.gpu-table th {
  background: var(--surface);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}
.gpu-table th:hover { background: var(--surface-alt); }
.gpu-table th.num, .gpu-table td.num { text-align: right; }
.gpu-table tbody tr:last-child td { border-bottom: 0; }
.gpu-table tbody tr:hover { background: var(--surface); }
.gpu-table th.sort-active::after {
  content: ' ↓';
  color: var(--fg-muted);
  font-weight: 400;
}
.gpu-table th.sort-active.sort-asc::after { content: ' ↑'; }

.rank-1 td { background: var(--gold-bg); font-weight: 500; }
.rank-2 td { background: var(--silver-bg); }
.rank-3 td { background: var(--bronze-bg); }

.unavailable td { color: var(--fg-muted); font-style: italic; }
.partial-mark { color: var(--accent); font-weight: 600; }

.gpu-cell {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.gpu-cell .gpu-name { font-weight: 600; }
.gpu-cell .gpu-meta {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 400;
}
.price-cell a {
  color: var(--accent);
  text-decoration: none;
}
.price-cell a:hover { text-decoration: underline; }

.empty-state {
  padding: 1.5rem;
  text-align: center;
  color: var(--fg-muted);
  margin: 0;
}

.meta {
  margin: 1.5rem 0;
  font-size: 0.875rem;
  color: var(--fg-muted);
}
.meta strong { color: var(--fg); }
.meta a { color: var(--accent); text-decoration: none; }
.meta a:hover { text-decoration: underline; }
.meta p { margin: 0 0 0.5rem; }
.meta p:last-child { margin-bottom: 0; }

.price-mode-toggle {
  display: inline-flex;
  gap: 0.25rem;
  vertical-align: baseline;
  margin: 0 0.15rem;
}
.mode-btn {
  padding: 0.15rem 0.55rem;
  border: 1px solid var(--border);
  background: var(--input-bg);
  border-radius: 999px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--fg);
  line-height: 1.3;
}
.mode-btn:hover { border-color: var(--accent); color: var(--accent); }
.mode-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.mode-active:hover { color: #fff; }

.methodology {
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
}
.methodology summary {
  padding: 0.85rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  list-style-position: inside;
}
.methodology[open] summary { border-bottom: 1px solid var(--border); }
.methodology-body {
  padding: 0.5rem 1.25rem 1.25rem;
}
.methodology-body h3 {
  font-size: 1rem;
  margin: 1.1rem 0 0.4rem;
}
.methodology-body p { margin: 0 0 0.6rem; }
.methodology-body ul { margin: 0.4rem 0 0.6rem 1.25rem; padding: 0; }

.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 0.875rem;
}