/* =============================================
   TÜYO Landing Page - CSS Variables (Design System)
   ============================================= */

:root {
  /* ===== Arka Plan Renkleri ===== */
  --bg-primary: #09090D;
  --bg-surface: #12121A;
  --bg-card: #1A1A24;
  --bg-elevated: #242430;
  
  /* ===== Neon Yeşil ===== */
  --neon-green: #00FF88;
  --neon-green-light: #33FF9F;
  --neon-green-dark: #00CC6F;
  --neon-green-glow: rgba(0, 255, 136, 0.4);
  --neon-green-subtle: rgba(0, 255, 136, 0.1);
  
  /* ===== Neon Mor ===== */
  --neon-purple: #B026FF;
  --neon-purple-light: #C44EFF;
  --neon-purple-dark: #9000E6;
  --neon-purple-glow: rgba(176, 38, 255, 0.4);
  --neon-purple-subtle: rgba(176, 38, 255, 0.1);
  
  /* ===== Ek Aksan Renkler ===== */
  --gold: #FFD700;
  --neon-red: #FF3366;
  --neon-blue: #00D9FF;
  --neon-orange: #FF9500;
  
  /* ===== Metin Renkleri ===== */
  --text-primary: #FFFFFF;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  --text-dark: #374151;
  
  /* ===== Glassmorphism ===== */
  --glass-bg: rgba(26, 26, 36, 0.7);
  --glass-bg-light: rgba(26, 26, 36, 0.5);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-hover: rgba(255, 255, 255, 0.2);
  
  /* ===== Shadows ===== */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 25px 80px rgba(0, 0, 0, 0.6);
  --shadow-neon-green: 0 0 30px var(--neon-green-glow);
  --shadow-neon-purple: 0 0 30px var(--neon-purple-glow);
  
  /* ===== Typography ===== */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Font Sizes */
  --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;
  --text-7xl: 4.5rem;
  
  /* Line Heights */
  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;
  
  /* ===== Spacing ===== */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  
  /* ===== Border Radius ===== */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;
  
  /* ===== Transitions ===== */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* ===== Z-Index ===== */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-tooltip: 500;
  
  /* ===== Container ===== */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  
  /* ===== iPhone Mockup ===== */
  --mockup-width: 280px;
  --mockup-height: 580px;
  --mockup-bezel: 12px;
  --mockup-radius: 45px;
}

/* ===== Dark Mode Overrides (default is dark) ===== */
@media (prefers-color-scheme: light) {
  :root {
    /* Site her zaman dark mode kalacak */
  }
}