/* Base & Typography */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background-color: rgba(15, 118, 110, 0.15);
  color: #0f766e;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Navbar scroll state */
.nav-scrolled {
  background: rgba(255, 255, 255, 0.97) !important;
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 20px rgba(0, 0, 0, 0.04);
}

.nav-logo-text {
  transition: color 0.3s ease;
}

.nav-scrolled .nav-logo-text {
  color: #0f172a;
}

.nav-scrolled .nav-logo-sub {
  color: #64748b;
}

/* Scroll reveal animations */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
.reveal[data-delay="6"] { transition-delay: 0.6s; }

.reveal-hidden {
  opacity: 0;
  transform: translateY(24px);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal-hidden {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
}

/* Service cards */
.service-card {
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s ease, border-color 0.4s ease, background-color 0.4s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(15, 118, 110, 0.08);
}

/* Mobile nav links */
.mobile-nav-link {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Image hover effects */
img {
  max-width: 100%;
  height: auto;
}

/* Focus styles */
*:focus-visible {
  outline: 2px solid #0f766e;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Smooth image loading */
img {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

/* Print styles */
@media print {
  nav, #contactForm, iframe { display: none; }
  body { color: #000; background: #fff; }
  .bg-teal-950 { background: #0f172a !important; }
}