:root {
  /* Colors */
  --color-primary: #4f46e5;
  --color-primary-light: #818cf8;
  --color-primary-dark: #3730a3;
  --color-accent: #ec4899;

  --color-bg: #f8fafc;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  
  /* Typography */
  --font-heading: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Layout */
  --max-width: 1280px;

  /* ── Standard Tokens (auto-injected) ── */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --radius-default: 4px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

/* Navigation Structural CSS */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10000;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease;
}

.site-header.is-scrolled {
  transform: translateY(-1rem);
}
.site-header.is-scrolled > div {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
  border-radius: 0 0 2rem 2rem;
  padding-top: 1rem;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* Scroll Reveal Animations */
[data-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);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal-stagger].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-stagger].is-visible > *:nth-child(2) { transition-delay: 100ms; }
[data-reveal-stagger].is-visible > *:nth-child(3) { transition-delay: 200ms; }
[data-reveal-stagger].is-visible > *:nth-child(4) { transition-delay: 300ms; }
[data-reveal-stagger].is-visible > *:nth-child(5) { transition-delay: 400ms; }
[data-reveal-stagger].is-visible > *:nth-child(6) { transition-delay: 500ms; }
[data-reveal-stagger].is-visible > * { opacity: 1; transform: translateY(0); }

/* Icon sizing */
.icon { display: inline-block; width: 1.25em; height: 1.25em; vertical-align: -0.15em; flex-shrink: 0; }
.icon-sm { width: 1em; height: 1em; }
.icon-lg { width: 1.5em; height: 1.5em; }
.icon-xl { width: 2em; height: 2em; }
.icon.hidden { display: none; }

/* Custom Animations */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}
.animate-float {
  animation: float 6s ease-in-out infinite;
}

@keyframes float-delayed {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}
.animate-float-delayed {
  animation: float-delayed 7s ease-in-out infinite 2s;
}body { margin: 0; }

/* ── Base typography (auto-injected) ── */
body { font-family: var(--font-body, 'Inter', -apple-system, system-ui, sans-serif); }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading, var(--font-body, 'Inter', -apple-system, system-ui, sans-serif)); }

.mobile-menu { background-color: var(--color-bg, #111); }
.mobile-menu-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: inherit;
  padding: 0.5rem;
  line-height: 1;
  z-index: 1;
}