:root {
  --navy: #154273;
  --navy-light: #1a5a8a;
  --navy-dark: #0f3258;
  --accent: #e8f0fe;
  --gray: #f8f9fa;
  --text: #2c3e50;
  --text-light: #6c757d;
}

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

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

/* Navbar */
.navbar {
  background: white;
  border-bottom: 2px solid var(--navy);
  padding: 0.75rem 0;
}
.navbar-brand img { height: 45px; }
.navbar .nav-link {
  color: var(--navy) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
}
.navbar .nav-link:hover { color: var(--navy-light) !important; }
.navbar .nav-link.active { color: var(--navy) !important; border-bottom: 2px solid var(--navy); }
.lang-link {
  color: var(--text-light) !important;
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem !important;
}
.lang-link.active { color: var(--navy) !important; font-weight: 600; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
}
.hero img { max-height: 120px; margin-bottom: 1.5rem; }
.hero h1 { font-weight: 700; font-size: 2.2rem; margin-bottom: 0.75rem; }
.hero p { font-size: 1.1rem; opacity: 0.9; max-width: 700px; margin: 0 auto 1.5rem; }
.hero .btn { padding: 0.75rem 2rem; font-weight: 600; border-radius: 30px; }

/* Sections */
.section { padding: 3rem 0; }
.section h2 { color: var(--navy); font-weight: 700; margin-bottom: 2rem; text-align: center; }
.section-alt { background: var(--gray); }

/* Service card */
.service-card {
  background: white;
  border: 1px solid #e9ecef;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
  height: 100%;
}
.service-card:hover {
  box-shadow: 0 4px 20px rgba(21,66,115,0.1);
  transform: translateY(-3px);
}
.service-card .icon {
  width: 60px; height: 60px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
  color: var(--navy);
}
.service-card h5 { color: var(--navy); font-weight: 600; margin-bottom: 0.75rem; }
.service-card p { font-size: 0.95rem; color: var(--text-light); }
.service-card .btn-sm { font-size: 0.85rem; margin-top: 0.5rem; }

/* Contact form */
.contact-form { max-width: 700px; margin: 0 auto; }
.contact-form .form-label { font-weight: 500; color: var(--navy); }
.contact-form .form-control { border-radius: 8px; border-color: #dee2e6; }
.contact-form .form-control:focus { border-color: var(--navy); box-shadow: 0 0 0 0.2rem rgba(21,66,115,0.15); }
.contact-form .btn { padding: 0.6rem 2.5rem; border-radius: 30px; font-weight: 600; }
.form-check-input:checked { background-color: var(--navy); border-color: var(--navy); }
.form-text { font-size: 0.8rem; color: var(--text-light); }

/* Alert */
#form-alert { display: none; border-radius: 8px; }
#form-alert.show { display: block; }

/* Footer */
.footer {
  background: var(--navy);
  color: white;
  text-align: center;
  padding: 1.5rem 0;
  margin-top: auto;
  font-size: 0.9rem;
}

/* Buttons */
.btn-primary { background-color: var(--navy); border-color: var(--navy); }
.btn-primary:hover { background-color: var(--navy-light); border-color: var(--navy-light); }
.btn-outline-primary { color: var(--navy); border-color: var(--navy); }
.btn-outline-primary:hover { background-color: var(--navy); color: white; }

@media (max-width: 768px) {
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 1rem; }
  .service-card { margin-bottom: 1rem; }
}