/* Open Source Claude Cowork — comparison hub.
   Design language lifted from Kortix/Suna: monochrome "ink" identity,
   one earned accent, hairline borders, Roobert-style sans + mono. */
:root {
  --bg: #ffffff;
  --surface: #fafafa;
  --surface-2: #f2f2f2;
  --ink: #0a0a0a;
  --ink-weak: #555555;
  --ink-muted: #8a8a8a;
  --border: #e6e6e6;
  --border-strong: #d0d0d0;
  --accent: #0a66c2; /* earned accent — links + focus */
  --accent-weak: #e8f1fb;
  --code-bg: #f5f5f5;
  --radius: 10px;
  --maxw: 980px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; color: var(--ink); display: flex; align-items: center; gap: 10px; }
.brand .mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: var(--ink); color: var(--bg);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 800; font-family: var(--mono);
}
.brand .tld { color: var(--ink-muted); font-weight: 400; font-family: var(--mono); font-size: 0.85rem; }
nav a { color: var(--ink-weak); margin-left: 20px; font-size: 0.94rem; }
nav a:hover { color: var(--ink); text-decoration: none; }

/* Hero */
.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--border); }
.eyebrow {
  font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--accent); margin: 0 0 14px;
}
.hero h1 {
  font-size: clamp(1.9rem, 4.6vw, 3rem);
  line-height: 1.12; letter-spacing: -0.025em; margin: 0 0 18px; font-weight: 750;
}
.hero .lede { font-size: 1.16rem; color: var(--ink-weak); max-width: 46em; margin: 0 0 24px; }
.hero .meta { font-size: 0.86rem; color: var(--ink-muted); font-family: var(--mono); }

/* Section */
section { padding: 44px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }
h2 { font-size: 1.5rem; letter-spacing: -0.015em; margin: 0 0 8px; font-weight: 720; }
h3 { font-size: 1.08rem; margin: 22px 0 8px; font-weight: 680; }
.section-sub { color: var(--ink-weak); margin: 0 0 22px; max-width: 44em; }
p { max-width: 52em; }

/* Comparison table */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table.cmp { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 680px; }
table.cmp th, table.cmp td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
table.cmp thead th {
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--ink-weak); font-weight: 700; background: var(--surface);
  position: sticky; top: 0;
}
table.cmp tbody tr:last-child td { border-bottom: none; }
table.cmp td.dim { font-weight: 600; white-space: nowrap; color: var(--ink-weak); }
table.cmp td.flag-open { color: #1a7f37; font-weight: 600; }
table.cmp td.flag-partial { color: #9a6b00; font-weight: 600; }
table.cmp td.flag-closed { color: #b3261e; font-weight: 600; }
table.cmp td small { display: block; color: var(--ink-muted); font-weight: 400; margin-top: 2px; }
.footnote { font-size: 0.8rem; color: var(--ink-muted); margin-top: 12px; }

/* Platform cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; background: var(--surface);
}
.card h3 { margin-top: 0; }
.card .tag {
  display: inline-block; font-family: var(--mono); font-size: 0.72rem;
  padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border-strong);
  color: var(--ink-weak); margin-bottom: 10px;
}
.card ul { margin: 0; padding-left: 18px; }
.card li { margin-bottom: 6px; color: var(--ink-weak); }
.card a.site { font-weight: 600; }

/* Callouts */
.callout {
  border-left: 3px solid var(--accent); background: var(--accent-weak);
  padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0; margin: 18px 0;
}
.callout.alt { border-left-color: var(--ink); background: var(--surface-2); }
.callout p { margin: 0; }

/* Steps */
ol.steps { padding-left: 22px; max-width: 52em; }
ol.steps li { margin-bottom: 12px; }
ol.steps code { background: var(--code-bg); }

/* FAQ */
details {
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 10px; padding: 14px 18px; background: var(--surface);
}
details summary { cursor: pointer; font-weight: 620; }
details p { margin: 10px 0 0; color: var(--ink-weak); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border); padding: 28px 0 44px;
  color: var(--ink-muted); font-size: 0.85rem;
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.disclaimer { font-size: 0.78rem; color: var(--ink-muted); max-width: 60em; }

@media (max-width: 640px) {
  nav a { margin-left: 12px; }
}