*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Hero Gradient ── */
.hero-gradient {
  background: linear-gradient(135deg, #0d1f33 0%, #1a3a5c 30%, #0d1f33 60%, #050b14 100%);
}

.hero-overlay {
  background: linear-gradient(
    to bottom,
    rgba(5, 11, 20, 0.55) 0%,
    rgba(13, 31, 51, 0.45) 50%,
    rgba(5, 11, 20, 0.75) 100%
  );
}

.hero-img {
  filter: brightness(0.7) saturate(1.1);
}

/* ── Hero Animations ── */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroZoom {
  from {
    transform: scale(1.08);
  }
  to {
    transform: scale(1);
  }
}

.hero-badge {
  animation: heroFadeUp 0.8s ease both;
  animation-delay: 0.2s;
}

.hero-title {
  animation: heroFadeUp 0.8s ease both;
  animation-delay: 0.4s;
}

.hero-subtitle {
  animation: heroFadeUp 0.8s ease both;
  animation-delay: 0.6s;
}

.hero-ctas {
  animation: heroFadeUp 0.8s ease both;
  animation-delay: 0.8s;
}

.hero-img {
  animation: heroZoom 1.2s ease both;
}

/* ── Scroll Indicator ── */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(8px); opacity: 1; }
}

.scroll-indicator {
  animation: scrollBounce 2s ease-in-out infinite;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
  color: #050b14;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.875rem 2rem;
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(74, 222, 128, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(74, 222, 128, 0.45);
  background: linear-gradient(135deg, #86efac 0%, #4ade80 100%);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  color: #f0f4f8;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 2rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* ── CTA Gradient ── */
.cta-gradient {
  background: linear-gradient(135deg, #0d1f33 0%, #142d4a 50%, #0d1f33 100%);
}

/* ── Navbar ── */
#navbar {
  background: transparent;
}

#navbar.scrolled {
  background: rgba(5, 11, 20, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ── Reveal Animations (below-fold only, progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal-text {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .reveal-left {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-right {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal-card {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .reveal-grid > * {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
}

/* JS will add these classes for scroll-triggered animation */
.reveal-text.animate-in {
  animation: revealFadeUp 0.7s ease forwards;
}

.reveal-left.animate-in {
  animation: revealSlideLeft 0.7s ease forwards;
}

.reveal-right.animate-in {
  animation: revealSlideRight 0.7s ease forwards;
}

.reveal-card.animate-in {
  animation: revealFadeUp 0.6s ease forwards;
}

.reveal-grid > *:nth-child(1).animate-in { animation-delay: 0s; }
.reveal-grid > *:nth-child(2).animate-in { animation-delay: 0.1s; }
.reveal-grid > *:nth-child(3).animate-in { animation-delay: 0.2s; }
.reveal-grid > *:nth-child(4).animate-in { animation-delay: 0.15s; }
.reveal-grid > *:nth-child(5).animate-in { animation-delay: 0.25s; }
.reveal-grid > *:nth-child(6).animate-in { animation-delay: 0.3s; }

@keyframes revealFadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes revealSlideLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes revealSlideRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ── Mobile Menu ── */
#mobileMenu {
  animation: menuSlideDown 0.3s ease;
}

@keyframes menuSlideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Utility ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}