/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

/* ===== NAVBAR ===== */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
#navbar.scrolled {
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

/* ===== HERO STAT CARDS ===== */
.stat-card {
  animation: float 6s ease-in-out infinite;
}
.stat-card:nth-child(2) { animation-delay: -1.5s; }
.stat-card:nth-child(3) { animation-delay: -3s; }
.stat-card:nth-child(4) { animation-delay: -4.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

/* ===== SERVICE CARDS ===== */
.service-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.service-card:hover {
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 0 1px rgba(240,180,41,0.1);
}

/* ===== GALLERY ===== */
.gallery-item {
  cursor: pointer;
  transition: transform 0.3s ease;
}
.gallery-item:hover {
  transform: scale(1.02);
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
  .reveal-delay-5 { transition-delay: 0.5s; }
  .reveal-delay-6 { transition-delay: 0.6s; }
}

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

/* ===== CTA SECTION ===== */
.cta-section {
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

/* ===== CONTACT FORM ===== */
.contact-input {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: white;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.contact-input:focus {
  outline: none;
  border-color: rgba(240,180,41,0.5);
  background: rgba(255,255,255,0.08);
}
.contact-input::placeholder {
  color: rgba(255,255,255,0.3);
}

/* ===== SUCCESS MESSAGE ===== */
.success-message {
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== MOBILE MENU LINKS ===== */
.mobile-link {
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.mobile-link:last-child {
  border-bottom: none;
}

/* ===== UTILITY ===== */
.text-shadow {
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

/* ===== FOCUS VISIBLE ===== */
a:focus-visible, button:focus-visible {
  outline: 2px solid #FBBF24;
  outline-offset: 2px;
  border-radius: 4px;
}