:root {
  --bg-primary: #07090e;
  --bg-surface: #0e131d;
  --bg-card: #131b28;
  --bg-card-hover: #192436;
  --bg-card-glass: rgba(19, 27, 40, 0.7);
  
  --border-dim: rgba(255, 255, 255, 0.08);
  --border-muted: rgba(255, 255, 255, 0.16);
  --border-focus: rgba(0, 242, 254, 0.45);
  
  --text-main: #f0f6fc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --accent-cyan: #00f2fe;
  --accent-blue: #38bdf8;
  --accent-emerald: #00f5a0;
  --accent-amber: #f59e0b;
  
  --gradient-brand: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00f5a0 100%);
  --gradient-subtle: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0) 100%);
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  
  --container-max: 1160px;
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-primary);
}

.ambient-glow {
  position: fixed;
  top: -240px;
  right: -120px;
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.07) 0%, rgba(0, 245, 160, 0.02) 55%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.ambient-glow-2 {
  position: fixed;
  bottom: -240px;
  left: -160px;
  width: 750px;
  height: 750px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.05) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-brand);
  z-index: 1000;
  width: 0%;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.7);
  transition: width 60ms ease-out;
}

::selection {
  background: #00f2fe;
  color: #000;
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

img, svg {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
  position: relative;
  z-index: 1;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  padding: 10px 18px;
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--accent-cyan);
}

.badge.available {
  background: rgba(0, 245, 160, 0.08);
  border-color: rgba(0, 245, 160, 0.3);
  color: var(--accent-emerald);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.site-header {
  border-bottom: 1px solid var(--border-dim);
  background: rgba(7, 9, 14, 0.86);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all var(--transition-fast);
}

.site-header.scrolled {
  border-bottom-color: var(--border-muted);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-icon {
  width: 32px;
  height: 32px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link.active {
  color: var(--accent-cyan);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gradient-brand);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-smooth);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #07090e;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 245, 160, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border-color: var(--border-dim);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-muted);
  transform: translateY(-2px);
}

.btn-icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-dim);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  color: var(--text-muted);
}

.menu-toggle-icon {
  width: 22px;
  height: 22px;
}

.theme-switch-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 20px;
  border: 1px solid var(--border-muted);
  background: var(--bg-surface);
  color: var(--text-muted);
  font-weight: 500;
}

.theme-switch-pill:hover {
  border-color: var(--accent-cyan);
  color: var(--text-main);
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-dim);
  background: #040609;
  padding-block: 60px 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 14px;
  max-width: 420px;
  line-height: 1.6;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-link:hover {
  color: var(--accent-cyan);
}

.footer-meta {
  border-top: 1px solid var(--border-dim);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 16px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

@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;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #0e131d;
    border-bottom: 1px solid var(--border-dim);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    align-items: flex-start;
  }

  .site-nav.is-open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}