/* Simple reset */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Liberation Sans', sans-serif; color: #111827; background: #ffffff; }

:root {
  --primary: #2563eb;
  --text: #111827;
  --muted: #6b7280;
  --bg-alt: #f9fafb;
  --border: #e5e7eb;
}

.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

.site-header { position: sticky; top: 0; background: rgba(255,255,255,0.9); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); z-index: 10; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.2px; color: inherit; text-decoration: none; }
.brand .logo { width: 32px; height: 32px; display: block; border-radius: 8px; }
.brand .name { font-size: 18px; }
.nav a { color: var(--text); text-decoration: none; margin-left: 16px; font-weight: 500; }
.nav a:hover { color: var(--primary); }

.hero { padding: 96px 0 64px; background: linear-gradient(180deg, #ffffff 0%, #eef6ff 40%, #eaf2ff 100%); border-bottom: 1px solid var(--border); }
.hero h1 { font-size: clamp(28px, 4vw, 40px); margin: 0 0 12px; }
.hero p { color: var(--muted); font-size: 18px; margin: 0 0 24px; }

.section { padding: 56px 0; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { margin-top: 0; font-size: 28px; }
.section p { color: var(--text); }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; padding: 0; margin: 16px 0 24px; list-style: none; }
.features li { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }

.cta { display: flex; gap: 12px; align-items: center; }
.button { display: inline-block; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border); color: var(--text); text-decoration: none; font-weight: 600; transition: all 0.15s ease; background: #fff; }
.button:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(0,0,0,0.08); }
.button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.button.primary:hover { filter: brightness(0.95); }

.site-footer { border-top: 1px solid var(--border); background: #fff; color: var(--muted); font-size: 14px; }
.site-footer .container { padding: 24px 20px; }

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e5e7eb;
    --muted: #9ca3af;
    --bg-alt: #0b1220;
    --border: #1f2937;
  }
  body { background: #0a0f1a; color: var(--text); }
  /* Improve hero contrast on dark mode */
  .hero { background: linear-gradient(180deg, rgba(10,15,26,1) 0%, rgba(13,20,33,1) 40%, rgba(16,24,39,1) 100%); }
  .hero h1 { color: var(--text); }
  .hero p { color: #cbd5e1; }
  .section.alt { background: #0b1220; }
  .nav a { color: var(--text); }
  .button { background: #0e1726; color: var(--text); border-color: var(--border); }
  .features li { background: #0e1726; border-color: var(--border); }
  .site-header { background: rgba(10,15,26,0.75); }
  .site-footer { background: #0b1220; }
}