/* === Base & Reset === */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #1a5c3a;
  color: white;
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #fdfcfa;
}
::-webkit-scrollbar-thumb {
  background: #a8d8b8;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #1a5c3a;
}

/* === Navbar === */
#navbar {
  backdrop-filter: blur(0px);
  background: transparent;
}

#navbar.scrolled {
  background: rgba(253, 252, 250, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(26, 92, 58, 0.08);
}

/* === Mobile Menu === */
.mobile-link {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease;
}

.mobile-menu-open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu-open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu-open .mobile-link:nth-child(4) { transition-delay: 0.25s; }

/* === Service Cards === */
.service-card {
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #1a5c3a 0%, #0f3822 100%);
  opacity: 0;
  transition: opacity 0.5s ease;
  border-radius: inherit;
  z-index: 0;
}

.service-card > * {
  position: relative;
  z-index: 1;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(26, 92, 58, 0.2);
}

/* === Animations === */
.fade-up {
  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);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }

/* === Product Cards === */
.group:hover .group-hover\\:scale-110 {
  transform: scale(1.1);
}

/* === Geometric shape float animation === */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(var(--rotate, 0deg)); }
  50% { transform: translateY(-20px) rotate(var(--rotate, 0deg)); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.35; }
}

.shape-float {
  animation: float 6s ease-in-out infinite;
}

.shape-pulse {
  animation: pulse-glow 4s ease-in-out infinite;
}

/* === Typography refinements === */
.font-display {
  letter-spacing: -0.02em;
}

/* === Focus styles === */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #1a5c3a;
  outline-offset: 2px;
  border-radius: 4px;
}

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

  .service-card {
    padding: 1.5rem;
  }

  #about .relative > div:first-child {
    margin-bottom: 2rem;
  }
}

@media (max-width: 640px) {
  #hero h1 {
    font-size: 2.25rem;
  }

  section {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* === Reduced motion === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
  .fade-up {
    opacity: 1;
    transform: none;
  }
}