:root {
  --navy: #0f172a;
  --slate: #475569;
  --light: #f8fafc;
  --border: #e2e8f0;
  --white: #ffffff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, Arial, sans-serif; background: var(--light); color: var(--navy); }
a { color: inherit; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(14px); background: rgba(248,250,252,0.88); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0; }
.brand { font-size: 1.125rem; font-weight: 800; }
nav { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
nav a { text-decoration: none; color: #334155; font-weight: 600; }
.hero { background: linear-gradient(135deg, #ffffff 0%, #dbeafe 55%, #e0f2fe 100%); border-bottom: 1px solid var(--border); }
.hero-grid, .grid, .footer-grid, .stats-grid, .tag-grid { display: grid; gap: 18px; }
.hero-grid { grid-template-columns: 1.15fr 0.85fr; align-items: start; padding: 56px 0; }
.grid.two-col { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid.three-col { grid-template-columns: repeat(3, minmax(0,1fr)); }
.footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); padding: 28px 0; }
.stats-grid { grid-template-columns: repeat(4, minmax(0,1fr)); margin-top: 28px; }
.tag-grid { grid-template-columns: repeat(4, minmax(0,1fr)); margin-top: 14px; }
.pill, .badge { display: inline-block; border-radius: 999px; font-weight: 800; }
.pill { background: var(--navy); color: white; padding: 8px 14px; font-size: 13px; letter-spacing: .02em; }
.badge { background: var(--navy); color: white; padding: 6px 10px; font-size: 12px; }
h1 { font-size: clamp(42px, 7vw, 72px); line-height: 1.02; margin: 20px 0 16px; letter-spacing: -0.04em; }
h2 { font-size: 2rem; line-height: 1.1; margin: 0 0 10px; }
h3 { font-size: 1.4rem; margin: 0 0 8px; }
.lead, .section-copy, .card p, .site-footer p { color: var(--slate); line-height: 1.75; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn { border-radius: 16px; padding: 14px 18px; text-decoration: none; font-weight: 800; display: inline-block; }
.btn-dark { background: var(--navy); color: white; border: none; }
.btn-light { background: white; color: var(--navy); border: 1px solid var(--border); }
.full { width: 100%; }
.card, .small-card { background: white; border: 1px solid var(--border); box-shadow: 0 10px 30px rgba(15,23,42,.06); }
.card { border-radius: 24px; padding: 24px; }
.small-card { border-radius: 18px; padding: 16px; }
.small-card span { display: block; color: #64748b; font-size: 14px; margin-top: 6px; }
.section { padding: 56px 0 0; }
.section-kicker { color: #64748b; font-size: 14px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.alert-form { display: grid; gap: 12px; }
.alert-form input, .alert-form select { width: 100%; height: 48px; border-radius: 16px; border: 1px solid #cbd5e1; padding: 0 14px; font-size: 16px; }
.success-message { background: #ecfeff; color: #155e75; border: 1px solid #a5f3fc; padding: 14px; border-radius: 16px; font-size: 14px; }
.hidden { display: none; }
.map-card { background: linear-gradient(135deg, #ecfeff 0%, #dbeafe 100%); }
.lake-map { width: 100%; height: auto; display: block; }
.map-tag { background: rgba(255,255,255,.82); border: 1px solid rgba(255,255,255,.95); border-radius: 14px; padding: 12px; font-size: 14px; }
.site-footer { border-top: 1px solid var(--border); margin-top: 48px; background: white; }
@media (max-width: 1024px) {
  .hero-grid, .grid.two-col, .grid.three-col, .footer-grid, .stats-grid, .tag-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .hero-grid, .grid.two-col, .grid.three-col, .footer-grid, .stats-grid, .tag-grid { grid-template-columns: 1fr; }
}