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

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50% { opacity: 1; }
  100% { transform: scaleY(1); transform-origin: top; opacity: 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-fade-up {
  animation: fadeInUp 0.8s ease-out both;
}

.animate-scroll-line {
  animation: scrollLine 2s ease-in-out infinite;
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.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; }

/* ===== Header ===== */
#header {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#header.scrolled {
  background: rgba(253, 246, 227, 0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(5, 150, 105, 0.08), 0 4px 24px rgba(0, 0, 0, 0.04);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: #059669;
  border-radius: 1px;
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-link:hover::after {
  width: calc(100% - 32px);
  left: 16px;
}

/* ===== Service Cards ===== */
.service-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, background 0.4s ease, border-color 0.4s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px -20px rgba(5, 150, 105, 0.15);
}

/* ===== Gallery ===== */
.gallery-item {
  cursor: pointer;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: 0 24px 64px -16px rgba(5, 150, 105, 0.2);
}

/* ===== Testimonials ===== */
.testimonial-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-4px);
}

/* ===== Mobile Menu ===== */
#mobile-menu {
  animation: fadeIn 0.3s ease;
}

.mobile-link {
  transition: all 0.2s ease;
}

/* ===== Selection ===== */
::selection {
  background: rgba(5, 150, 105, 0.2);
  color: #047857;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #FDF6E3;
}
::-webkit-scrollbar-thumb {
  background: #059669;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #047857;
}

/* ===== Focus visible ===== */
*:focus-visible {
  outline: 2px solid #059669;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Responsive tweaks ===== */
@media (max-width: 768px) {
  .service-card:hover {
    transform: none;
  }
}