/* 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;
}

/* Scroll Reveal Animations */
.scroll-reveal {
  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);
}

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

.scroll-reveal.revealed:nth-child(2) { transition-delay: 0.1s; }
.scroll-reveal.revealed:nth-child(3) { transition-delay: 0.2s; }
.scroll-reveal.revealed:nth-child(4) { transition-delay: 0.3s; }
.scroll-reveal.revealed:nth-child(5) { transition-delay: 0.35s; }
.scroll-reveal.revealed:nth-child(6) { transition-delay: 0.4s; }

/* Hero Animations */
.hero-subtitle {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-headline {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.hero-desc {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

.hero-cta {
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.8s both;
}

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

/* Navbar */
#navbar {
  transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#navbar.scrolled {
  background-color: rgba(28, 28, 30, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-logo {
  transition: color 0.3s ease;
}

/* Scroll Indicator */
.scroll-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.scroll-indicator:hover {
  border-color: rgba(255, 255, 255, 0.7);
  transform: scale(1.1);
}

/* Mobile Menu */
#mobile-menu.open {
  opacity: 1 !important;
  pointer-events: all !important;
}

#mobile-menu.closed {
  opacity: 0 !important;
  pointer-events: none !important;
}

.mobile-link {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

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

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(6) { transition-delay: 0.3s; }

/* Selection */
::selection {
  background-color: #E8635A;
  color: white;
}

/* Focus styles */
:focus-visible {
  outline: 2px solid #E8635A;
  outline-offset: 2px;
}

/* Smooth image loading */
img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

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

::-webkit-scrollbar-track {
  background: #1C1C1E;
}

::-webkit-scrollbar-thumb {
  background: #E8635A;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #D4524A;
}