:root {
  --bg: #ffffff;
  --bg-alt: #f5f6f8;
  --text: #1c1f24;
  --muted: #5b6270;
  --accent: #2f5bea;
  --accent-text: #ffffff;
  --border: #e3e6eb;
  --radius: 14px;
  --max: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --bg-alt: #171a20;
    --text: #eceef2;
    --muted: #a0a7b4;
    --accent: #6d8dff;
    --accent-text: #0f1115;
    --border: #262a33;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); }
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

header.site {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
header.site .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 16px;
}
.logo { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; margin-left: 20px; font-size: .95rem; }
nav a:hover { color: var(--text); }
@media (max-width: 640px) {
  nav a { margin-left: 12px; font-size: .85rem; }
  nav a.hide-sm { display: none; }
}

.hero { padding: 96px 0 72px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px;
  background: var(--accent); color: var(--accent-text); text-decoration: none; font-weight: 600;
}
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); margin-left: 8px; }

section { padding: 72px 0; }
section.alt { background: var(--bg-alt); }
section h2 { font-size: 1.8rem; margin: 0 0 8px; letter-spacing: -0.01em; }
section .lead { color: var(--muted); margin: 0 0 36px; max-width: 680px; }

.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px;
}
section.alt .card { background: var(--bg); }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: .95rem; }
.tag { display: inline-block; font-size: .75rem; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px; margin-top: 14px; }

.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { padding: 10px 0; border-bottom: 1px solid var(--border); }
.info-list strong { display: inline-block; min-width: 110px; }

footer.site { border-top: 1px solid var(--border); padding: 32px 0; color: var(--muted); font-size: .9rem; }
footer.site .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer.site a { color: var(--muted); }

.legal { padding: 56px 0 80px; max-width: 760px; }
.legal h1 { font-size: 2rem; margin-bottom: 4px; }
.legal h2 { font-size: 1.25rem; margin-top: 36px; }
.legal .updated { color: var(--muted); margin-top: 0; }

.legal h3 { font-size: 1.05rem; margin: 24px 0 4px; }