:root {
  --bg: #F5F7FB;
  --card: #ffffff;
  --text: #0f2238;
  --muted: #3c4c5f;
  --navy: #0A1E3C;
  --red: #C82828;
  --accent: linear-gradient(135deg, #0A1E3C, #C82828);
  --shadow: 0 10px 30px rgba(0,0,0,.08);
}

html[data-theme='dark'] {
  --bg: #0b1424;
  --card: #111b2e;
  --text: #e6eefc;
  --muted: #b3c0d6;
  --shadow: 0 10px 30px rgba(0,0,0,.4);
}

* { box-sizing: border-box; }
html, body { margin:0; padding:0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; color: var(--text); background: var(--bg); }
a { color: var(--navy); text-decoration: none; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 22px; }

.site-header { backdrop-filter: blur(10px); position: sticky; top:0; z-index: 50; background: color-mix(in srgb, var(--card) 88%, transparent); box-shadow: var(--shadow); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 12px; }
.brand { display:flex; align-items:center; gap:.6rem; font-weight:800; letter-spacing:.3px; color: var(--text); }
.brand .logo { width:38px; height:38px; border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,.2); }

.nav-right { display:flex; align-items:center; gap:12px; }
.nav { display:flex; gap: 18px; align-items:center; }
.nav a { padding:10px 12px; border-radius:12px; color: var(--text); }
.nav a:hover { background: color-mix(in srgb, var(--card) 70%, transparent); }
.nav .cta { background: var(--navy); color: white; box-shadow: var(--shadow); }
.nav .cta:hover { background: #08152b; }
.nav-toggle { display:none; background:var(--navy); color:white; border:0; padding:10px 12px; border-radius:10px; }

.theme-toggle { background: var(--card); border:1px solid color-mix(in srgb, var(--navy) 20%, transparent); color: var(--text); padding:8px 12px; border-radius:10px; box-shadow: var(--shadow); }
.theme-toggle:hover { background: color-mix(in srgb, var(--card) 70%, transparent); }

.hero { padding: 90px 0 54px; background: radial-gradient(1000px 400px at -10% -20%, color-mix(in srgb, var(--navy) 12%, transparent), transparent), radial-gradient(900px 360px at 110% -30%, color-mix(in srgb, var(--red) 14%, transparent), transparent); }
.hero .grid { display:grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items:center; }
.badge { display:inline-block; padding:6px 10px; border-radius:999px; background: color-mix(in srgb, var(--red) 18%, transparent); color:#FFFFFF; font-weight:700; letter-spacing:.3px; }
h1 { font-size: 46px; margin:.5rem 0 1rem; line-height:1.1; }
.lead { font-size: 18px; color: var(--muted); line-height:1.7; }
.btn { display:inline-block; padding:12px 16px; background: var(--navy); color:white; border-radius:12px; box-shadow: var(--shadow); }
.btn.alt { background: #C82828; }

.section { padding: 48px 0; }
.section h2 { margin:0 0 .8rem; }
.kicker { color: #C82828; font-weight:700; letter-spacing:.18px; text-transform: uppercase; font-size: 12px; }

.card-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 28px 0; }
.card { background: var(--card); border-radius:16px; padding:20px; box-shadow: var(--shadow); border:1px solid color-mix(in srgb, var(--navy) 12%, transparent); }
.card h3 { margin: 0 0 .4rem; }
blockquote { background: var(--card); border-left:4px solid #C82828; border-radius:12px; padding:14px 18px; box-shadow: var(--shadow); }

.site-footer { background: #0b1424; color:white; margin-top: 40px; }
.site-footer h4 { margin-bottom:.4rem; color:white; }
.site-footer .cols { display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 28px 0; }
.copy { border-top:1px solid rgba(255,255,255,.1); padding: 12px 0 24px; font-size: 13px; color:#bcd; }
.site-footer a { color: #FFFFFF; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

.grid-2 { display:grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.form { background: var(--card); padding:20px; border-radius:14px; box-shadow: var(--shadow); border:1px solid color-mix(in srgb, var(--navy) 12%, transparent); }
label { display:block; margin:.6rem 0 .2rem; font-weight:600; }
input, textarea { width:100%; padding:12px 12px; border-radius:10px; border:1px solid #cfd7e3; background: color-mix(in srgb, var(--card) 90%, transparent); color: var(--text); }
button { padding:12px 16px; border:0; border-radius:10px; background:#C82828; color:white; cursor:pointer; box-shadow: var(--shadow); }

.post { background: var(--card); border-radius:16px; padding:20px; box-shadow: var(--shadow); border:1px solid color-mix(in srgb, var(--navy) 12%, transparent); }
.post h3 { margin-top:0; }
.post .meta { color: var(--muted); font-size: 13px; }

@media (max-width: 980px) {
  .hero .grid, .site-footer .cols, .card-grid, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .nav { display:none; position: absolute; top:72px; right: 12px; background: var(--card); padding:10px; border-radius:12px; box-shadow: var(--shadow); flex-direction: column; }
  .nav a { display:block; }
  .nav-toggle { display:block; }
}