/* CSS Değişkenleri - Modern Tasarım Sistemi */
:root {
  /* Renkler */
  --primary-color: #2c3e50;  /* Koyu gri-mavi - daha yumuşak */
  --secondary-color: #34495e; /* Orta koyu gri */
  --accent-color: #3498db;    /* Açık mavi - daha okunabilir */
  --highlight-color: #e74c3c; /* Kırmızı - kontrastlı ama yumuşak */
  --success-color: #27ae60;   /* Yeşil - daha koyu ve okunabilir */
  --warning-color: #f39c12;   /* Turuncu - daha koyu */
  --danger-color: #c0392b;    /* Koyu kırmızı */
  --info-color: #2980b9;      /* Mavi - daha koyu */
  
  /* Nötr Renkler */
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: var(--black);
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #555;
  --gray-700: #333;
  --gray-800: #1a1a1a;
  --gray-900: #000000;
  --black: #000000;
  
  /* Gradyanlar - Daha yumuşak ve okunabilir */
  --gradient-primary: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);  /* Mavi'den koyu griye */
  --gradient-secondary: linear-gradient(135deg, #95a5a6 0%, #7f8c8d 100%); /* Gri tonları */
  --gradient-accent: linear-gradient(135deg, #ecf0f1 0%, #bdc3c7 100%);    /* Açık gri gradyan */
  --gradient-dark: linear-gradient(135deg, #34495e 0%, #2c3e50 100%);      /* Koyu gradyan */
  
  /* Tipografi */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-secondary: 'Poppins', sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
  
  /* Font Boyutları */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 3rem;       /* 48px */
  --text-6xl: 3.75rem;    /* 60px */
  
  /* Font Ağırlıkları */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Satır Yükseklikleri */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Boşluklar */
  --space-1: 0.25rem;     /* 4px */
  --space-2: 0.5rem;      /* 8px */
  --space-3: 0.75rem;     /* 12px */
  --space-4: 1rem;        /* 16px */
  --space-5: 1.25rem;     /* 20px */
  --space-6: 1.5rem;      /* 24px */
  --space-8: 2rem;        /* 32px */
  --space-10: 2.5rem;     /* 40px */
  --space-12: 3rem;       /* 48px */
  --space-16: 4rem;       /* 64px */
  --space-20: 5rem;       /* 80px */
  --space-24: 6rem;       /* 96px */
  --space-32: 8rem;       /* 128px */
  
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;  /* 2px */
  --radius-base: 0.25rem; /* 4px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --radius-3xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;
  
  /* Gölgeler */
  --shadow-xs: 0 0 0 1px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-none: none;
  
  /* Animasyon */
  --transition-fast: 150ms;
  --transition-base: 250ms;
  --transition-slow: 350ms;
  --transition-slower: 500ms;
  
  /* Z-index */
  --z-negative: -1;
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-modal: 1000;
  --z-popover: 1100;
  --z-tooltip: 1200;
  --z-notification: 1300;
  
  /* Container */
  --container-xs: 475px;
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* Dark Mode Kaldırıldı - Sadece Light Mode Aktif */