:root {
  --bg: #0b1117;
  --surface: #0f1720;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #0f766e;
  --primary-600: #0a5f59;
  --secondary: #d97706;
  --accent: #22d3ee;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(15, 23, 32, 0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
  z-index: 10;
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav { display: flex; gap: 14px; align-items: center; }
.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
}
.nav a:hover { background: rgba(148, 163, 184, 0.12); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.1s ease, background 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-600); }
.btn-secondary { background: rgba(34, 211, 238, 0.15); color: var(--accent); }
.btn-secondary:hover { background: rgba(34, 211, 238, 0.25); }
.btn-outline { border: 1px solid rgba(148, 163, 184, 0.28); color: var(--text); }
.btn-outline:hover { border-color: rgba(148, 163, 184, 0.5); }

.hero {
  background: radial-gradient(1000px 400px at 10% 0%, rgba(34, 211, 238, 0.15), transparent),
              radial-gradient(800px 300px at 90% 10%, rgba(15, 118, 110, 0.35), transparent);
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}
.hero-wrap {
  padding: 80px 0 60px;
  text-align: center;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.1;
  margin: 0 0 14px;
}
.hero p { color: var(--muted); max-width: 760px; margin: 0 auto 22px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.section { padding: 60px 0; }
.section.alt { background: var(--surface); }
.section h2 { font-size: 30px; margin: 0 0 24px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 14px;
  padding: 18px;
}
.card .icon { font-size: 22px; }
.card h3 { margin: 8px 0 6px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }

.testimonials .card { padding: 20px; }
.meta { margin-top: 12px; color: var(--muted); font-size: 14px; }

.contact { text-align: center; }
.contact-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; }

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  background: rgba(15, 23, 32, 0.8);
}
.footer-wrap { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 18px 0; }
.small { font-size: 13px; color: var(--muted); }

@media (max-width: 960px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero h1 { font-size: 36px; }
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .header-wrap { height: auto; padding: 12px 0; gap: 8px; }
  .footer-wrap { flex-direction: column; }
}