/* ======================================
   HIGHSCORE WERKSTATT - MAIN STYLES
   ====================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* ======================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ====================================== */

:root {
  /* Colors - Vibrant Pinball Theme */
  --color-primary: #00d9ff;
  --color-primary-dark: #0099cc;
  --color-primary-light: #5ce1ff;
  
  --color-secondary: #ff00ff;
  --color-secondary-dark: #cc00cc;
  --color-secondary-light: #ff66ff;
  
  --color-accent: #ff6b00;
  --color-accent-dark: #cc5500;
  --color-accent-light: #ff9933;
  
  --color-success: #00ff88;
  --color-warning: #ffcc00;
  --color-error: #ff3366;
  
  /* Background Colors */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #13131a;
  --color-bg-tertiary: #1a1a26;
  --color-bg-card: rgba(26, 26, 38, 0.8);
  --color-bg-glass: rgba(26, 26, 38, 0.6);
  
  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #b8b8cc;
  --color-text-muted: #787890;
  
  /* Border & Shadow */
  --color-border: rgba(0, 217, 255, 0.2);
  --color-border-hover: rgba(0, 217, 255, 0.5);
  
  --shadow-glow-primary: 0 0 20px rgba(0, 217, 255, 0.4);
  --shadow-glow-secondary: 0 0 20px rgba(255, 0, 255, 0.4);
  --shadow-glow-accent: 0 0 20px rgba(255, 107, 0, 0.4);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* Typography */
  --font-primary: 'Orbitron', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 400ms ease-in-out;
  
  /* Layout */
  --max-width-sm: 640px;
  --max-width-md: 768px;
  --max-width-lg: 1024px;
  --max-width-xl: 1280px;
  --max-width-2xl: 1536px;
  
  --nav-height: 70px;
  --footer-height: 60px;
}

/* ======================================
   RESET & BASE STYLES
   ====================================== */

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

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

body {
  font-family: var(--font-secondary);
  background-color: var(--color-bg-primary);
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(0, 217, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(255, 107, 0, 0.03) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ======================================
   TYPOGRAPHY
   ====================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-size: var(--font-size-5xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--font-size-4xl);
  color: var(--color-primary);
}

h3 {
  font-size: var(--font-size-3xl);
  color: var(--color-primary-light);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-primary-light);
}

/* ======================================
   LAYOUT UTILITIES
   ====================================== */

.container {
  width: 100%;
  max-width: var(--max-width-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: var(--max-width-2xl);
}

.container-narrow {
  max-width: var(--max-width-md);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-sm {
  padding: var(--spacing-2xl) 0;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-column {
  flex-direction: column;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* ======================================
   RESPONSIVE DESIGN
   ====================================== */

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --nav-height: 60px;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
  }
}

/* ======================================
   UTILITY CLASSES
   ====================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}