/* ===== BASE & RESET ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #0D9488;
  color: white;
}

/* ===== NAVBAR ===== */
#navbar {
  background: rgba(250, 250, 245, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

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

/* ===== MARQUEE ===== */
.marquee-track {
  animation: marquee 30s linear infinite;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== SERVICE CARDS ===== */
.service-card {
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, #0D9488, #2dd4bf);
  transition: width 0.5s ease;
}

.service-card:hover::after {
  width: 100%;
}

/* ===== GALLERY ===== */
.gallery-item {
  position: relative;
  cursor: pointer;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.4) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.5s ease;
  border-radius: inherit;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ===== TESTIMONIAL CARDS ===== */
.testimonial-card {
  position: relative;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .marquee-track {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
  .gallery-item img {
    transition: none;
  }
}

/* ===== MOBILE MENU ===== */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-link {
  display: block;
  padding: 8px 0;
  border-bottom: 1px solid #f1f5f9;
}

.mobile-link:last-child {
  border-bottom: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  #hero h1 {
    font-size: 2.75rem;
  }

  .service-card {
    padding: 1.5rem;
  }

  #about .aspect-\[4\/5\] {
    aspect-ratio: 4/3;
  }

  .gallery-item {
    aspect-ratio: 3/4;
  }
}

@media (max-width: 480px) {
  #hero h1 {
    font-size: 2.25rem;
  }

  .max-w-7xl {
    px-4;
  }
}