/* ===== CSS VARIABLES & RESET ===== */
:root {
  --color-bg: #0d0d1a;
  --color-surface: #1a1a2e;
  --color-surface2: #16213e;
  --color-border: #2a2a4a;
  --color-text: #e0e0ff;
  --color-text-muted: #8888aa;

  --color-neon-pink: #ff006e;
  --color-neon-cyan: #00f5ff;
  --color-neon-gold: #ffd60a;
  --color-neon-green: #06ffa5;
  --color-neon-purple: #bf5af2;

  --sidebar-width: 300px;
  --header-height: 60px;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-neon-pink: 0 0 10px rgba(255, 0, 110, 0.5), 0 0 20px rgba(255, 0, 110, 0.3);
  --shadow-neon-cyan: 0 0 10px rgba(0, 245, 255, 0.5), 0 0 20px rgba(0, 245, 255, 0.3);
  --shadow-neon-gold: 0 0 10px rgba(255, 214, 10, 0.5), 0 0 20px rgba(255, 214, 10, 0.3);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;

  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Courier New', monospace;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background grid pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

canvas {
  display: block;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
}

.neon-text-pink {
  color: var(--color-neon-pink);
  text-shadow: 0 0 10px rgba(255, 0, 110, 0.8);
}

.neon-text-cyan {
  color: var(--color-neon-cyan);
  text-shadow: 0 0 10px rgba(0, 245, 255, 0.8);
}

.neon-text-gold {
  color: var(--color-neon-gold);
  text-shadow: 0 0 10px rgba(255, 214, 10, 0.8);
}

/* ===== SHARED COMPONENTS ===== */

/* Neon Button */
.btn-neon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 2px solid var(--color-neon-cyan);
  border-radius: var(--radius-sm);
  color: var(--color-neon-cyan);
  background: transparent;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
  text-transform: uppercase;
}

.btn-neon:hover {
  background: rgba(0, 245, 255, 0.12);
  box-shadow: var(--shadow-neon-cyan);
  transform: translateY(-1px);
}

.btn-neon.pink {
  border-color: var(--color-neon-pink);
  color: var(--color-neon-pink);
}

.btn-neon.pink:hover {
  background: rgba(255, 0, 110, 0.12);
  box-shadow: var(--shadow-neon-pink);
}

.btn-neon.gold {
  border-color: var(--color-neon-gold);
  color: var(--color-neon-gold);
}

.btn-neon.gold:hover {
  background: rgba(255, 214, 10, 0.12);
  box-shadow: var(--shadow-neon-gold);
}

/* Badge */
.badge-new {
  display: inline-block;
  padding: 2px 7px;
  background: var(--color-neon-pink);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 1px;
  border-radius: 4px;
  text-transform: uppercase;
  box-shadow: var(--shadow-neon-pink);
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neon-cyan);
}

/* Header shared */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(13, 13, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-neon-cyan);
  text-shadow: 0 0 15px rgba(0, 245, 255, 0.6);
  white-space: nowrap;
}

.site-logo span {
  color: var(--color-neon-pink);
  text-shadow: 0 0 15px rgba(255, 0, 110, 0.6);
}

.header-spacer {
  flex: 1;
}

/* Utility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}