/* ─── BASE & RESET ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ─── NAVBAR ─── */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 24px rgba(0, 0, 0, 0.06);
}

#navbar.scrolled .nav-text {
  color: #0f172a;
}

#navbar.scrolled .nav-link {
  color: #475569;
}

#navbar.scrolled .nav-link:hover {
  color: #0d9488;
}

/* ─── SCROLL REVEAL ─── */
.scroll-reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: none;
}

/* Reduced motion */
@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(32px);
  }
  .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stagger children */
.scroll-reveal-delay-1 { transition-delay: 0.1s; }
.scroll-reveal-delay-2 { transition-delay: 0.2s; }
.scroll-reveal-delay-3 { transition-delay: 0.3s; }

/* ─── MARQUEE ─── */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.animate-marquee {
  animation: marquee 30s linear infinite;
}

.animate-marquee:hover {
  animation-play-state: paused;
}

/* ─── MOBILE MENU ─── */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-link {
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid #f1f5f9;
  transition: color 0.2s ease;
}

.mobile-link:last-child {
  border-bottom: none;
}

.mobile-link:hover {
  color: #0d9488;
}

/* ─── CUSTOM SCROLLBAR ─── */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #94a3b8;
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

/* ─── SELECTION ─── */
::selection {
  background: #ccfbf1;
  color: #134e4a;
}