/* Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  overflow-x: hidden;
}

/* Hero Animations */
.hero-element {
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 0.8s ease forwards;
}

.hero-element:nth-child(1) { animation-delay: 0.1s; }
.hero-element:nth-child(2) { animation-delay: 0.25s; }
.hero-element:nth-child(3) { animation-delay: 0.4s; }
.hero-element:nth-child(4) { animation-delay: 0.55s; }
.hero-element:nth-child(5) { animation-delay: 0.7s; }

@keyframes heroReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll Reveal Animations — Progressive Enhancement */
@media (prefers-reduced-motion: no-preference) {
  .reveal-up,
  .reveal-left,
  .reveal-right {
    opacity: 0;
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-up {
    transform: translateY(40px);
  }

  .reveal-left {
    transform: translateX(-40px);
  }

  .reveal-right {
    transform: translateX(40px);
  }

  .reveal-up.revealed,
  .reveal-left.revealed,
  .reveal-right.revealed {
    opacity: 1;
    transform: translate(0, 0);
  }
}

/* Default state: always visible (no JS = no animation, but content shows) */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .js-enabled .reveal-up,
  .js-enabled .reveal-left,
  .js-enabled .reveal-right {
    opacity: 0;
  }
  .js-enabled .reveal-up { transform: translateY(40px); }
  .js-enabled .reveal-left { transform: translateX(-40px); }
  .js-enabled .reveal-right { transform: translateX(40px); }
}

/* Navbar transition */
.nav-scrolled {
  background: rgba(4, 11, 24, 0.95) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-scrolled .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
}

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

::-webkit-scrollbar-track {
  background: #06112A;
}

::-webkit-scrollbar-thumb {
  background: #1ABF82;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3ED8A0;
}

/* Selection */
::selection {
  background: rgba(26, 191, 130, 0.3);
  color: #06112A;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #1ABF82;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Image loading placeholder */
img {
  background: linear-gradient(135deg, #e2e8f0 0%, #f1f5f9 100%);
}

/* Smooth transitions for all interactive elements */
a, button {
  transition: all 0.3s ease;
}