/**
 * Design Tokens for Prince Company Management System
 * CSS Custom Properties for consistent theming
 * 
 * ملف متغيرات التصميم: يحتوي على جميع القيم الثابتة (ألوان، مسافات، خطوط، ظلال)
 * استخدام: استخدم var(--token-name) بدلاً من القيم المباشرة لسهولة الصيانة والتعديل
 * مثال: padding: var(--spacing-md); color: var(--color-primary);
 */

:root {
  /* Colors - Primary Palette */
  --color-primary: #4582ec;
  --color-primary-dark: #2d68c4;
  --color-primary-light: #6ba3f5;
  --color-primary-50: #e3f0fd;
  --color-primary-100: #bdd8fa;
  --color-primary-200: #94bff8;
  --color-primary-300: #6ba3f5;
  --color-primary-400: #4582ec;
  --color-primary-500: #2d68c4;
  --color-primary-600: #1f4fa3;
  --color-primary-700: #153882;
  --color-primary-800: #0c2261;
  --color-primary-900: #050c40;

  --color-secondary: #adb5bd;
  --color-secondary-dark: #868e96;
  --color-secondary-light: #ced4da;

  /* Colors - Semantic */
  --color-success: #02b875;
  --color-success-dark: #018a5a;
  --color-success-light: #4dd4a3;
  --color-success-50: #ccf1e3;
  --color-success-100: #99e3c7;
  --color-success-200: #4dd4a3;
  --color-success-300: #02b875;
  --color-success-400: #018a5a;
  --color-success-500: #015c3d;

  --color-warning: #f0ad4e;
  --color-warning-dark: #e08a1a;
  --color-warning-light: #f7d08b;
  --color-warning-50: #fef3e7;
  --color-warning-100: #fde5c8;
  --color-warning-200: #fbd7a9;
  --color-warning-300: #f7d08b;
  --color-warning-400: #f0ad4e;
  --color-warning-500: #e08a1a;

  --color-danger: #d9534f;
  --color-danger-dark: #b02a26;
  --color-danger-light: #e68985;
  --color-danger-50: #f9e6e5;
  --color-danger-100: #f3cdcb;
  --color-danger-200: #edb4b1;
  --color-danger-300: #e68985;
  --color-danger-400: #d9534f;
  --color-danger-500: #b02a26;

  --color-info: #17a2b8;
  --color-info-dark: #117a8b;
  --color-info-light: #5bc0de;
  --color-info-50: #d1ecf1;
  --color-info-100: #a2dae3;
  --color-info-200: #73c8d5;
  --color-info-300: #5bc0de;
  --color-info-400: #17a2b8;
  --color-info-500: #117a8b;

  /* Colors - Neutral */
  --color-neutral-50: #f8f9fa;
  --color-neutral-100: #e9ecef;
  --color-neutral-200: #dee2e6;
  --color-neutral-300: #ced4da;
  --color-neutral-400: #adb5bd;
  --color-neutral-500: #868e96;
  --color-neutral-600: #495057;
  --color-neutral-700: #343a40;
  --color-neutral-800: #212529;
  --color-neutral-900: #000;

  /* Spacing Scale (8px base) */
  --spacing-xs: 0.25rem; /* 4px */
  --spacing-sm: 0.5rem; /* 8px */
  --spacing-md: 1rem; /* 16px */
  --spacing-lg: 1.5rem; /* 24px */
  --spacing-xl: 2rem; /* 32px */
  --spacing-2xl: 3rem; /* 48px */
  --spacing-3xl: 4rem; /* 64px */
  --spacing-4xl: 5rem; /* 80px */
  --spacing-5xl: 6rem; /* 96px */

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-family-arabic: "Segoe UI", "Cairo", "Tajawal", sans-serif;
  --font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem; /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem; /* 20px */
  --font-size-2xl: 1.5rem; /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem; /* 48px */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;

  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.25rem; /* 4px */
  --radius-md: 0.5rem; /* 8px */
  --radius-lg: 0.75rem; /* 12px */
  --radius-xl: 1rem; /* 16px */
  --radius-2xl: 1.5rem; /* 24px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-none: none;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);

  /* Sidebar */
  --sidebar-width: 310px; /* زيادة عرض القائمة قليلاً */
  --sidebar-width-collapsed: 90px; /* عرض مناسب للقائمة المغلقة */
  --sidebar-bg: var(--color-neutral-800);
  --sidebar-color: var(--color-neutral-100);
  --sidebar-hover-bg: var(--color-neutral-700);
  --sidebar-active-bg: var(--color-primary);
  --sidebar-active-color: #fff;
  --sidebar-border-color: var(--color-neutral-700);
  --sidebar-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Top Nav */
  --topnav-height: 60px;
  --topnav-bg: #fff;
  --topnav-color: var(--color-neutral-800);
  --topnav-shadow: var(--shadow-sm);
  --topnav-border-color: var(--color-neutral-200);

  /* Content Area */
  --content-padding: var(--spacing-lg);
  --content-bg: var(--color-neutral-50);

  /* Card Colors */
  --card-bg: #fff;
  --card-border: var(--color-neutral-200);

  /* Text Colors */
  --text-primary: var(--color-neutral-900);
  --text-secondary: var(--color-neutral-600);

  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-offcanvas-backdrop: 1040;
  --z-offcanvas: 1045;
  --z-modal-backdrop: 1050;
  --z-modal: 1055;
  --z-tooltip: 1070;
  --z-popover: 1080;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-all: all var(--transition-base);

  /* Breakpoints (for JS use, CSS uses Bootstrap breakpoints) */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-2xl: 1400px;
}

/* RTL Overrides */
[dir="rtl"] {
  --spacing-direction-start: var(--spacing-md);
  --spacing-direction-end: var(--spacing-md);
  font-family: var(--font-family-arabic);
}

/* LTR Support (if needed in future) */
[dir="ltr"] {
  font-family: var(--font-family-base);
}

/* Dark Mode Variables */
[data-theme="dark"] {
  /* Colors - Primary (same in dark mode) */
  --color-primary: #5a9df5;
  --color-primary-dark: #4582ec;
  --color-primary-light: #7db3f8;

  /* Colors - Neutral (inverted) */
  --color-neutral-50: #1a1a1a;
  --color-neutral-100: #2d2d2d;
  --color-neutral-200: #404040;
  --color-neutral-300: #525252;
  --color-neutral-400: #666666;
  --color-neutral-500: #808080;
  --color-neutral-600: #999999;
  --color-neutral-700: #b3b3b3;
  --color-neutral-800: #cccccc;
  --color-neutral-900: #e6e6e6;

  /* Background Colors */
  --content-bg: #1a1a1a;
  --sidebar-bg: #121212;
  --sidebar-hover-bg: #2d2d2d;
  --topnav-bg: #1f1f1f;
  --topnav-color: var(--color-neutral-200);

  /* Sidebar Colors in Dark Mode */
  --sidebar-color: var(--sidebar-color-dark);
  --sidebar-active-color: #fff;

  /* Card Colors */
  --card-bg: #252525;
  --card-border: #404040;

  /* Text Colors - فاتحة للقراءة المريحة */
  --text-primary: #f5f5f5;
  --text-secondary: #d0d0d0;

  /* Additional text colors for better contrast */
  --text-muted: #b0b0b0;
  --text-light: #ffffff;
}

/* Focus Styles */
:root {
  --focus-ring-width: 2px;
  --focus-ring-color: var(--color-primary);
  --focus-ring-offset: 2px;
  --focus-ring: 0 0 0 var(--focus-ring-width) var(--focus-ring-color);
  --focus-ring-offset: 0 0 0 var(--focus-ring-width) var(--focus-ring-color),
    0 0 0 calc(var(--focus-ring-width) + var(--focus-ring-offset)) transparent;
}