*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --text: #1E293B;
  --text-light: #64748B;
  --bg: #FFFFFF;
  --bg-alt: #F8FAFC;
  --border: #E2E8F0;
  --danger: #DC2626;
  --radius: 12px;
  --max-w: 1100px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* ── Nav ── */
.nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
  color: var(--text-light);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: color .15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--primary); }

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
  padding: 80px 24px;
  text-align: center;
}
.hero h1 {
  font-size: 44px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text);
}
.hero p {
  font-size: 18px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 32px;
}
.hero-badges { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-badges a {
  display: inline-block;
  background: var(--text);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: background .15s;
}
.hero-badges a:hover { background: var(--primary-dark); text-decoration: none; }

/* ── Features ── */
.features {
  padding: 64px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.features h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 40px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}
.feature-card .icon {
  font-size: 36px;
  margin-bottom: 12px;
}
.feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-light);
}

/* ── Content pages (privacy, contact) ── */
.page {
  flex: 1;
  padding: 48px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.page h1 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 24px;
}
.page h2 {
  font-size: 22px;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 12px;
}
.page p, .page li {
  color: var(--text-light);
  margin-bottom: 12px;
}
.page ul { padding-left: 20px; }

/* ── Contact form ── */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 14px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color .15s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 12px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: .6; cursor: not-allowed; }

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  display: none;
}
.alert--success { background: #ECFDF5; color: #065F46; display: block; }
.alert--error { background: #FEF2F2; color: #991B1B; display: block; }

/* ── Footer ── */
.footer {
  background: var(--text);
  color: #94A3B8;
  padding: 32px 24px;
  text-align: center;
  margin-top: auto;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  list-style: none;
  margin-bottom: 16px;
}
.footer-links a { color: #CBD5E1; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer p { font-size: 13px; }
.footer a { color: var(--primary); }

/* ── Responsive ── */
@media (max-width: 640px) {
  .hero h1 { font-size: 30px; }
  .hero p { font-size: 16px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 13px; }
}