/* Base */
:root {
  --bg: #ffffff;
  --text: #0f172a; /* slate-900 */
  --muted-text: #475569; /* slate-600 */
  --accent: #0ea5a1; /* teal-500 */
  --accent-600: #0d9488; /* teal-600 */
  --border: #e5e7eb; /* gray-200 */
  --muted-bg: #f8fafc; /* slate-50 */
  --shadow: 0 8px 30px rgba(2, 6, 23, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

a { color: var(--accent-600); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.2px;
}
.nav { display: flex; gap: 18px; }
.nav a { color: var(--muted-text); font-weight: 500; }
.nav a:hover { color: var(--text); }

/* Hero */
.hero { padding: 80px 0 48px; }
.hero-inner { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; align-items: center; }
.hero-content h1 { font-size: clamp(28px, 4vw, 44px); line-height: 1.15; margin: 0 0 14px; }
.hero-content p { color: var(--muted-text); font-size: 18px; margin: 0 0 22px; }
.hero-ctas { display: flex; gap: 12px; margin-bottom: 16px; }
.btn {
  display: inline-block;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-primary { background: var(--accent); color: white; box-shadow: 0 10px 24px rgba(13, 148, 136, 0.25); }
.btn-primary:hover { background: var(--accent-600); transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); background: white; }
.btn-ghost:hover { background: var(--muted-bg); transform: translateY(-1px); }
.hero-facts { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; padding: 0; list-style: none; color: var(--muted-text); }
.hero-visual { position: relative; height: 260px; }
.hero-visual .shape { position: absolute; inset: 0; background: radial-gradient(1100px 400px at 30% 20%, rgba(14, 165, 161, 0.14), transparent 60%),
  radial-gradient(800px 300px at 70% 60%, rgba(14, 165, 161, 0.10), transparent 60%);
  border-radius: 18px; box-shadow: var(--shadow);
}

/* Sections */
.section { padding: 60px 0; }
.section.muted { background: var(--muted-bg); }
.section h2 { font-size: clamp(24px, 3vw, 34px); margin: 0 0 10px; }
.section-subtitle { color: var(--muted-text); margin-bottom: 24px; }

.grid { display: grid; gap: 18px; }
.cards { grid-template-columns: repeat(3, 1fr); }
.features { grid-template-columns: repeat(3, 1fr); }
.testimonials { grid-template-columns: repeat(3, 1fr); }

.card, .feature, .testimonial, .contact-info { border: 1px solid var(--border); background: #fff; border-radius: 16px; padding: 18px; box-shadow: var(--shadow); }
.card h3, .feature h3 { margin: 0 0 6px; }
.testimonial p { margin: 0 0 8px; color: var(--text); }
.testimonial footer { color: var(--muted-text); font-size: 14px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.footer-nav { display: flex; gap: 14px; }

/* Elevation toggle */
[data-elevate] { transition: box-shadow 0.25s ease, transform 0.25s ease; }
[data-elevate]:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(2, 6, 23, 0.12); }

/* Reveal on scroll */
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { height: 180px; }
  .hero-facts { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .cards, .features, .testimonials { grid-template-columns: 1fr; }
  .nav { display: none; }
}

/* Prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, [data-reveal] { transition: none; }
}