/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-dark: #4f46e5;
  --color-accent: #ec4899;

  --color-bg: #0a0a14;
  --color-bg-alt: #0f0f1e;
  --color-text: #f3f4f6;
  --color-text-muted: #9ca3af;
  --color-border: rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-heading: 'Space Grotesk', 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);
}

/* ============================================
   SMOOTH SCROLL
   ============================================ */
html {
  scroll-behavior: smooth;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  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(20px);
  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);
}

/* ============================================
   NAVIGATION
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10000;
  background-color: rgba(10, 10, 20, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
  background-color: rgba(10, 10, 20, 0.9);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-link[aria-current="page"] {
  color: #ffffff;
}

.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: linear-gradient(to right, #6366f1, #8b5cf6);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  width: 100%;
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background-color: rgba(10, 10, 20, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-link {
  position: relative;
  transition: color 0.2s ease;
}
.mobile-nav-link[aria-current="page"] {
  background: linear-gradient(to right, #818cf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ============================================
   FORM AUTOFILL -- dark theme override
   ============================================ */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
select:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 30px rgba(255, 255, 255, 0.05) inset !important;
  -webkit-text-fill-color: #f3f4f6 !important;
  caret-color: #f3f4f6;
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@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;
  }
}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-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;
}