/* ============================================================
   AkademikTR Design Tokens — variables.css
   Tek kaynak: Tüm renkler, spacing, radius buradan gelir
   ============================================================ */
:root {
  /* --- Brand Colors --- */
  --primary: #4545a1;
  --primary-dark: #373785;
  --primary-light: #ececf7;

  --secondary: #f59e0b;
  --secondary-dark: #d97706;

  --danger: #ff4b4b;
  --danger-dark: #ea2b2b;

  --warning: #ffc800;
  --warning-dark: #e5b400;

  /* --- Text --- */
  --text-primary: #0f172a;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  /* --- Backgrounds --- */
  --bg-white: #ffffff;
  --bg-surface: #f8fafc;
  --bg-off: #f1f5f9;

  /* --- Borders --- */
  --border-light: #e2e8f0;
  --border-color: #e2e8f0;
  --border-dark: #cbd5e1;

  /* --- Radius --- */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* --- Shadows --- */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.05);

  /* --- Typography --- */
  --font-sans: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: var(--font-sans);
  --font-body: var(--font-sans);
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semi: 600;
  --font-weight-bold: 700;
  --font-weight-extra: 800;
  --font-weight-black: 900;

  /* --- Spacing Scale --- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* --- Transitions --- */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* --- Z-Index --- */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-navbar: 1000;
  --z-overlay: 1100;
  --z-modal: 1200;
  --z-preloader: 2147483647;

  /* --- Layout --- */
  --container-max: 1200px;
  --navbar-height: 64px;
  --sidebar-width: 336px;
}