*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; line-height: 1.6; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

:root {
  --bg: #0b1020;
  --bg-elev: #0f152a;
  --text: #e7ecf3;
  --muted: #b7c1d6;
  --card: #111832;
  --accent: #0ea5e9;
  --ring: rgba(14,165,233,.35);
  --shadow: 0 10px 30px rgba(2,8,23,.35);
}
.light {
  --bg: #f7fafc;
  --bg-elev: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --card: #ffffff;
  --accent: #0ea5e9;
  --ring: rgba(14,165,233,.25);
  --shadow: 0 10px 30px rgba(2,8,23,.08);
}

body { font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji"; background: var(--bg); color: var(--text); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

header { position: sticky; top: 0; z-index: 40; backdrop-filter: saturate(180%) blur(8px); background: color-mix(in oklab, var(--bg-elev) 70%, transparent); border-bottom: 1px solid color-mix(in oklab, var(--text) 12%, transparent); }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
.logo { font-weight: 800; letter-spacing: .3px; }
.logo span { color: var(--accent); }
nav ul { list-style: none; display: flex; gap: 18px; padding: 0; margin: 0; }
nav a { padding: 8px 10px; border-radius: 10px; color: var(--muted); }
nav a:hover, nav a:focus { outline: none; color: var(--text); background: color-mix(in oklab, var(--accent) 20%, transparent); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--accent); color: #031022; border-radius: 12px; font-weight: 700; box-shadow: var(--shadow); border: 1px solid color-mix(in oklab, var(--accent) 60%, #fff 0%); }
.btn:focus { outline: 2px solid var(--ring); outline-offset: 2px; }

.hero { padding: 72px 0 24px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; }
.title { font-size: clamp(28px, 4vw, 48px); line-height: 1.1; margin: 0 0 10px; }
.subtitle { color: var(--muted); font-size: clamp(16px, 2.2vw, 18px); margin: 0 0 18px; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.pill { padding: 6px 10px; border: 1px solid color-mix(in oklab, var(--text) 16%, transparent); border-radius: 999px; color: var(--muted); font-size: 13px; }
.hero { display: grid; grid-template-columns: 1fr; }

section { padding: 48px 0; }
.section-title { font-size: 24px; margin: 0 0 18px; }
.muted { color: var(--muted); }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(12, 1fr); }
.card { grid-column: span 12; background: var(--card); border: 1px solid color-mix(in oklab, var(--text) 12%, transparent); border-radius: 16px; padding: 16px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag { font-size: 12px; padding: 4px 8px; border-radius: 999px; border: 1px solid color-mix(in oklab, var(--text) 16%, transparent); color: var(--muted); }

@media (min-width: 700px) { .card { grid-column: span 6; } }
@media (min-width: 1000px) { .card { grid-column: span 4; } }

footer { border-top: 1px solid color-mix(in oklab, var(--text) 12%, transparent); padding: 28px 0; color: var(--muted); font-size: 14px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.spacer { height: 24px; }

.link { color: var(--accent); border-bottom: 1px dashed color-mix(in oklab, var(--accent) 70%, transparent); }
.link:hover { border-bottom-style: solid; }