:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #4b4b50;
  --muted: #6e6e73;
  --border: #d2d2d7;
  --accent: #c2410c;
  --accent-hover: #9a3208;
  --radius: 14px;
  --maxw: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

.site-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-weight: 600;
  font-size: 19px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }

.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--text-secondary); font-size: 16px; }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 22px 24px;
}

.hero { text-align: center; padding: 40px 0 24px; }

h1 {
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  font-weight: 700;
}

.tagline {
  font-size: 21px;
  color: var(--text-secondary);
  margin: 0 auto 22px;
  max-width: 34ch;
}

.lead {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 56ch;
  margin: 0 auto 32px;
}

.actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 980px;
  font-size: 17px;
  font-weight: 500;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--accent); color: #ffffff; }
.btn-primary:hover { background: var(--accent-hover); color: #ffffff; }

.btn-secondary {
  background: var(--surface);
  color: var(--accent);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 32px;
  margin: 24px 0;
}

.page-title {
  font-size: 34px;
  letter-spacing: -0.02em;
  margin: 8px 0 4px;
}

.effective {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 8px;
}

h2 {
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 30px 0 10px;
}

p { margin: 0 0 16px; color: var(--text-secondary); }
.card p, .card li { color: var(--text-secondary); }

ul { padding-left: 22px; margin: 0 0 16px; }
li { margin: 0 0 8px; }

strong { color: var(--text); font-weight: 600; }

.contact-email {
  font-size: 18px;
  font-weight: 500;
}

.site-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 22px 48px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
}
.site-footer a { color: var(--muted); }

@media (max-width: 520px) {
  h1 { font-size: 34px; }
  .tagline { font-size: 19px; }
  main { padding-top: 32px; }
  .card { padding: 24px 20px; }
  .nav-links { gap: 14px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: #1c1c1e;
    --text: #f5f5f7;
    --text-secondary: #c7c7cc;
    --muted: #98989d;
    --border: #38383a;
    --accent: #ff7a45;
    --accent-hover: #ff9269;
  }
  .site-header { background: rgba(28, 28, 30, 0.85); }
  .btn-primary { color: #1d1d1f; }
  .btn-primary:hover { color: #1d1d1f; }
}