/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ===== NAV ===== */
#site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
#site-header.scrolled {
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #0d9488;
  border-radius: 1px;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }
.nav-link:hover { color: #0d9488; }

/* ===== MOBILE NAV ===== */
.mobile-nav-link { position: relative; }
#mobile-nav { animation: slideDown 0.3s ease; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal[data-revealed="true"] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
}

/* ===== SERVICE CARDS ===== */
.service-card { transition: transform 0.3s ease, box-shadow 0.3s ease; }
.service-card:hover { transform: translateY(-4px); }

/* ===== GALLERY ===== */
.gallery-item { transition: transform 0.4s ease; }
.gallery-item:hover .gallery-img { transform: scale(1.05); }

/* ===== BUTTONS ===== */
.btn-primary {
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.2s ease;
}
.btn-primary:hover { transform: translateY(-1px); }

/* ===== FORM ===== */
input:focus, select:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f0fdfa; }
::-webkit-scrollbar-thumb { background: #99f6e4; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #5eead4; }
</style>