/* CogBattery site. Layout after a report-card benchmark page: sticky bar, type-only hero,
   eyebrow-labelled sections divided by hairlines, framed sortable tables. */
:root {
  --blue: #2f5fb3; --navy: #1b365d; --teal: #0f766e; --pale: #eaf0f8; --pale-rule: #d3dfee;
  --teal-pale: #e6f2f0; --ink: #222222; --ink-soft: #4a4a4a; --gray: #6f6f6f; --line: #e4e7ec;
  --bg: #ffffff; --card: #ffffff; --hover: #f6f9fd; --code-bg: #0f2036; --code-ink: #dce7f5;
  --lo: 47, 95, 179; --hi: 196, 84, 40;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --blue: #8cb0f0; --navy: #c9dafa; --teal: #5ec4b6; --pale: #1e2a3b; --pale-rule: #2c3c55;
    --teal-pale: #17302d; --ink: #e8e9ec; --ink-soft: #c3c7cf; --gray: #a2a8b3; --line: #2c3038;
    --bg: #15171b; --card: #1a1d22; --hover: #1f242c; --code-bg: #0b1626; --code-ink: #dce7f5;
    --lo: 110, 150, 230; --hi: 235, 130, 90;
  }
}
:root[data-theme="dark"] {
  --blue: #8cb0f0; --navy: #c9dafa; --teal: #5ec4b6; --pale: #1e2a3b; --pale-rule: #2c3c55;
  --teal-pale: #17302d; --ink: #e8e9ec; --ink-soft: #c3c7cf; --gray: #a2a8b3; --line: #2c3038;
  --bg: #15171b; --card: #1a1d22; --hover: #1f242c; --code-bg: #0b1626; --code-ink: #dce7f5;
  --lo: 110, 150, 230; --hi: 235, 130, 90;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 60px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 var(--font); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1020px; margin: 0 auto; padding: 10px 20px; display: flex; align-items: baseline; gap: 16px; }
.wordmark { font-weight: 800; font-size: 1.02rem; letter-spacing: -0.01em; color: var(--navy); }
.wordmark span { color: var(--blue); }
.wordmark:hover { text-decoration: none; }
.topbar-links { margin-left: auto; display: flex; gap: 18px; overflow-x: auto; }
.topbar-links a { color: var(--ink-soft); font-size: .86rem; font-weight: 500; white-space: nowrap; }
.topbar-links a:hover { color: var(--blue); text-decoration: none; }

.hero { max-width: 860px; margin: 0 auto; padding: 64px 20px 40px; text-align: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.25; color: var(--navy); margin: 0 0 10px; }
.subtitle { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--ink-soft); max-width: 704px; margin: 0 auto 20px; }
.venue { font-size: .92rem; font-weight: 700; color: var(--teal); margin: 0 0 24px; }
.btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; }
.btn { display: inline-flex; align-items: center; padding: 8px 17px; border-radius: 999px; font-size: .88rem; font-weight: 600;
  background: var(--blue); color: #ffffff; border: 1px solid var(--blue); transition: background .15s; }
.btn:hover { background: var(--navy); border-color: var(--navy); text-decoration: none; }
.btn.ghost { background: var(--bg); color: var(--blue); }
.btn.ghost:hover { background: var(--pale); }

.section { max-width: 1020px; margin: 0 auto; padding: 44px 20px; border-top: 1px solid var(--line); }
.section.first { border-top: 0; padding-top: 8px; }
.kicker { font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; color: var(--teal); margin: 0 0 5px; }
h2 { font-size: 1.65rem; font-weight: 800; letter-spacing: -0.015em; margin: 0 0 16px; }
h3 { font-size: 1.08rem; font-weight: 700; margin: 1.9rem 0 .6rem; }
p, li { color: var(--ink-soft); }
strong, b { color: var(--ink); }

.features { list-style: none; padding: 0; margin: 20px 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.features li { background: var(--pale); border-radius: 8px; padding: 15px 18px; font-size: .9rem; }
.features b { display: block; font-size: 1.6rem; font-weight: 800; color: var(--navy); line-height: 1.2; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.two-col h3 { margin-top: 0; }
.finding { margin-bottom: 8px; }

.figure { margin: 28px 0 0; text-align: center; }
.figure img { max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.fignote, .table-note, .note, footer { color: var(--gray); font-size: .82rem; }
.callout { background: var(--teal-pale); border-left: 4px solid var(--teal); border-radius: 0 8px 8px 0; padding: 14px 18px; font-size: .9rem; margin: 20px 0 0; }
.callout p { margin: 0; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; margin: 12px 0; }
table.grid { border-collapse: collapse; width: 100%; font-size: .87rem; background: var(--card); }
.grid th { background: var(--pale); color: var(--navy); font-weight: 700; text-align: left; padding: 10px 12px;
  border-bottom: 2px solid var(--pale-rule); position: sticky; top: 0; white-space: nowrap; }
.grid td { padding: 8px 12px; border-bottom: 1px solid var(--line); color: var(--ink-soft); vertical-align: top; }
.grid tr:last-child td { border-bottom: 0; }
.grid tbody tr:hover td, .grid tr:hover td { background-color: var(--hover); }
.grid td.num, .grid th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.grid tr.group td { background: var(--bg); font-weight: 700; color: var(--teal); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.models th { cursor: pointer; }
.models th:hover { color: var(--blue); }
.models th.sorted { color: var(--blue); }
.models th.sorted::after { content: " \25BE"; font-size: .7em; }
.models th.sorted.asc::after { content: " \25B4"; }
.models td.m { white-space: nowrap; font-weight: 600; color: var(--ink); position: sticky; left: 0; background: var(--card); box-shadow: inset -1px 0 0 var(--line); }
.models th:first-child { left: 0; z-index: 2; }
.controls { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin: 24px 0 8px; font-size: .9rem; color: var(--ink-soft); }
select { font: inherit; padding: 3px 8px; background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 2px; vertical-align: -1px; margin-left: 8px; }
.sw.lo { background: rgba(var(--lo), .55); } .sw.hi { background: rgba(var(--hi), .55); }

.examples { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ex { background: var(--pale); border-radius: 8px; padding: 15px 18px; }
.ex h4 { margin: 0 0 8px; color: var(--navy); }
.ex p { font-size: .9rem; margin: 8px 0 0; }
pre { background: var(--code-bg); color: var(--code-ink); border-radius: 8px; padding: 16px 20px; overflow-x: auto; font: .82rem/1.65 var(--mono); margin: 0; }
code { font-family: var(--mono); font-size: .88em; background: var(--pale); border-radius: 4px; padding: .1em .35em; }
pre code { background: none; padding: 0; }
ol.steps li { margin: 6px 0; }

footer { border-top: 1px solid var(--line); text-align: center; padding: 36px 16px 44px; }

@media (max-width: 800px) {
  .two-col, .examples { grid-template-columns: 1fr; }
  .topbar-inner { flex-wrap: wrap; }
  .topbar-links { margin-left: 0; width: 100%; }
}
@media (max-width: 640px) {
  .hero { padding: 40px 16px 28px; }
  .section { padding: 36px 16px; }
}