:root {
  --primary: #1a2a3a;
  --primary-light: #2a3a4a;
  --accent: #00b4d8;
  --accent-dark: #0096b7;
  --light: #f8f9fa;
  --dark: #111827;
  --gray: #6b7280;
  --white: #ffffff;
  --max-width: 1200px;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--dark);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-dark); }

.skip-nav {
  position: absolute; top: -100%; left: 0; background: var(--accent); color: var(--white);
  padding: 0.5rem 1rem; z-index: 1000; font-weight: 600;
}
.skip-nav:focus { top: 0; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
  background: var(--primary);
  color: var(--white);
  padding: 1rem 0;
  position: sticky; top: 0; z-index: 100;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.logo { font-size: 1.25rem; font-weight: 700; color: var(--white); }
.logo span { color: var(--accent); }

.main-nav ul { list-style: none; display: flex; gap: 1.5rem; }
.main-nav a {
  color: var(--white); opacity: 0.85; font-weight: 500; padding: 0.25rem 0;
  border-bottom: 2px solid transparent; transition: opacity 0.2s, border-color 0.2s;
}
.main-nav a:hover, .main-nav a.active { opacity: 1; border-bottom-color: var(--accent); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--accent-dark) 100%);
  color: var(--white);
  padding: 5rem 1.5rem;
  text-align: center;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; max-width: 800px; margin-left: auto; margin-right: auto; }
.hero p { font-size: 1.2rem; opacity: 0.9; max-width: 600px; margin: 0 auto 2rem; }

/* Buttons */
.btn {
  display: inline-block; padding: 0.75rem 2rem; border-radius: var(--radius);
  font-weight: 600; font-size: 1rem; border: none; cursor: pointer; transition: background 0.2s, transform 0.1s;
  text-align: center;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-dark); color: var(--white); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }

/* Sections */
.section { padding: 4rem 1.5rem; }
.section--light { background: var(--light); }
.section--dark { background: var(--primary); color: var(--white); }
.section h2 { text-align: center; margin-bottom: 2.5rem; font-size: 2rem; }
.section h2 span { color: var(--accent); }

/* Cards grid */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.card {
  background: var(--white); border-radius: var(--radius); padding: 2rem;
  box-shadow: var(--shadow); text-align: center; transition: transform 0.2s;
}
.card:hover { transform: translateY(-4px); }
.card__icon { width: 48px; height: 48px; margin: 0 auto 1rem; color: var(--accent); }
.card h3 { margin-bottom: 0.75rem; font-size: 1.15rem; }
.card p { color: var(--gray); font-size: 0.95rem; }

/* Process steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-top: 2rem; }
.step { text-align: center; }
.step__num {
  width: 48px; height: 48px; border-radius: 50%; background: var(--accent); color: var(--white);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.25rem;
  margin: 0 auto 1rem;
}
.step h3 { margin-bottom: 0.5rem; }

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--white); text-align: center; padding: 4rem 1.5rem;
}
.cta-banner h2 { margin-bottom: 1rem; }
.cta-banner p { opacity: 0.9; margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto; }

/* Contact */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.contact-info dt { font-weight: 600; color: var(--primary); margin-bottom: 0.25rem; }
.contact-info dd { color: var(--gray); margin-bottom: 1.25rem; margin-left: 0; }
.contact-info svg { vertical-align: middle; margin-right: 0.5rem; }

.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 600; margin-bottom: 0.5rem; }
.form-group input, .form-group textarea {
  width: 100%; padding: 0.75rem; border: 1px solid #d1d5db; border-radius: var(--radius);
  font-size: 1rem; font-family: inherit; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,180,216,0.2); }
.form-group textarea { resize: vertical; min-height: 120px; }

.map-placeholder {
  height: 200px; border-radius: var(--radius);
  background: linear-gradient(135deg, #d1d5db 0%, #9ca3af 100%);
  display: flex; align-items: center; justify-content: center; color: var(--gray); margin-top: 2rem;
}

/* Footer */
.site-footer {
  background: var(--dark); color: rgba(255,255,255,0.7); padding: 3rem 1.5rem 2rem;
}
.site-footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
.site-footer h3 { color: var(--white); margin-bottom: 1rem; font-size: 1.1rem; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 0.5rem; }
.site-footer a { color: rgba(255,255,255,0.7); }
.site-footer a:hover { color: var(--accent); }
.footer-bottom { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; margin-top: 1.5rem; text-align: center; font-size: 0.9rem; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.75rem; }
  .hero p { font-size: 1rem; }
  .site-header .container { flex-direction: column; text-align: center; }
  .main-nav ul { gap: 1rem; }
  .contact-layout { grid-template-columns: 1fr; }
  .site-footer .container { grid-template-columns: 1fr; text-align: center; }
}