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

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

body {
  margin: 0;
  overflow-x: hidden;
}

::selection {
  background: rgba(42, 168, 124, 0.3);
  color: #F0FFF8;
}

/* ===== Navbar ===== */
.nav-fixed {
  background: rgba(5, 10, 24, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.3s ease;
}

.nav-fixed.scrolled {
  background: rgba(5, 10, 24, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
  max-height: 500px;
}

.mobile-link {
  display: block;
  padding: 0.5rem 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, transparent, #6FD4B0, transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

/* ===== Testimonial Cards ===== */
.testimonial-card {
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(111, 212, 176, 0.2);
}

/* ===== Scroll Reveal Animations ===== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
  }
  
  .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; }
}

/* ===== Geometric Shape Animations ===== */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(45deg); }
  50% { transform: translateY(-15px) rotate(45deg); }
}

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

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

.geo-float-circle {
  animation: floatCircle 4s ease-in-out infinite;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0A1628;
}

::-webkit-scrollbar-thumb {
  background: #1B3A5C;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #2AA87C;
}

/* ===== Focus Styles ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid #6FD4B0;
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 767px) {
  .font-display {
    word-spacing: -0.02em;
  }
}