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

/* ===== NAVBAR ===== */
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #059669;
  transition: width 0.3s;
}
.nav-link:hover::after { width: 100%; }

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(5, 152, 105, 0.1);
}

/* ===== MOBILE MENU ===== */
.mobile-link { border-radius: 0.5rem; padding-left: 0.5rem; }
.mobile-link:hover { background: #ecfdf5; color: #059669; }

/* ===== HERO FLOATING CARDS ===== */
@keyframes float1 {
  0%, 100% { transform: translateY(0px) rotate(2deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0px) translateX(0); }
  50% { transform: translateY(-10px) translateX(4px); }
}
@keyframes float4 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}
@keyframes float5 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
}
@keyframes blob1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}
@keyframes blob2 {
  0%, 100% { transform: translate(0, 0) rotate(12deg) scale(1); }
  33% { transform: translate(-25px, 20px) rotate(18deg) scale(1.05); }
  66% { transform: translate(15px, -15px) rotate(6deg) scale(0.95); }
}
.hero-float-1 { animation: float1 5s ease-in-out infinite; }
.hero-float-2 { animation: float2 4s ease-in-out infinite 0.5s; }
.hero-float-3 { animation: float3 4.5s ease-in-out infinite 1s; }
.hero-float-4 { animation: float4 3.5s ease-in-out infinite 0.3s; }
.hero-float-5 { animation: float5 4s ease-in-out infinite 0.8s; }
.hero-blob-1 { animation: blob1 8s ease-in-out infinite; }
.hero-blob-2 { animation: blob2 10s ease-in-out infinite; }

/* ===== SERVICE CARDS ===== */
.service-card {
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 1.5rem;
  opacity: 0;
  transition: opacity 0.4s;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 100%);
}
.service-card:hover::before { opacity: 1; }

/* ===== GALLERY ===== */
.gallery-item {
  position: relative;
  overflow: hidden;
}
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 78, 59, 0.4) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s;
}
.gallery-item:hover::after { opacity: 1; }

/* ===== 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; }
}

/* ===== BACK TO TOP ===== */
#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ===== FORM ===== */
input:focus, select:focus, textarea:focus {
  box-shadow: 0 0 0 3px rgba(5, 152, 105, 0.15);
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}