/* ── Base & Reset ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

/* ── Hero Gradient ── */
.hero-gradient {
  background: linear-gradient(135deg, #0f766e 0%, #115e59 30%, #1e293b 70%, #0f172a 100%);
}

/* ── Hero Pattern ── */
.hero-pattern {
  background-image: radial-gradient(circle at 25% 25%, rgba(45, 212, 191, 0.15) 0%, transparent 50%),
                    radial-gradient(circle at 75% 75%, rgba(45, 212, 191, 0.1) 0%, transparent 50%);
}

/* ── Navbar ── */
#navbar {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
#navbar.scrolled {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #2dd4bf;
  transition: width 0.2s ease;
}
.nav-link:hover::after {
  width: 100%;
}

/* ── Mobile Menu ── */
#mobile-menu {
  animation: slideDown 0.3s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Service Cards ── */
.service-card {
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #14b8a6, #2dd4bf);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.service-card:hover::before {
  transform: scaleX(1);
}

/* ── Scroll Reveal ── */
.scroll-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
  }
  .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Gallery ── */
.gallery-item {
  overflow: hidden;
  border-radius: 0.75rem;
}
.gallery-item img {
  transition: transform 0.5s ease;
}
.gallery-item:hover img {
  transform: scale(1.05);
}

/* ── Button Focus ── */
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid #14b8a6;
  outline-offset: 2px;
}

/* ── Smooth Scroll Offset for Fixed Nav ── */
section[id] {
  scroll-margin-top: 80px;
}
</style>