/* ============================================
   Design Tokens - SchoolSelect
   CSS Custom Properties Design System
   ============================================ */

:root {
    /* ---- Colors ---- */

    /* Primary */
    --color-primary-50: #eef4fd;
    --color-primary-100: #d4e3fa;
    --color-primary-200: #a9c7f5;
    --color-primary-300: #7eabf0;
    --color-primary-400: #538eeb;
    --color-primary: #3671E0;
    --color-primary-600: #2b5ab3;
    --color-primary-700: #204386;
    --color-primary-800: #162d5a;
    --color-primary-900: #0b162d;

    /* Accent (Teal) */
    --color-accent-50: #eaf7f6;
    --color-accent-100: #c9edeb;
    --color-accent-200: #93dbd7;
    --color-accent-300: #5dc9c3;
    --color-accent: #2C9F99;
    --color-accent-600: #237f7a;
    --color-accent-700: #1a5f5c;
    --color-accent-800: #12403d;
    --color-accent-900: #09201f;

    /* Semantic */
    --color-success: #22c55e;
    --color-success-light: #dcfce7;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    /* Neutrals */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Surfaces */
    --color-surface: #ffffff;
    --color-surface-raised: #ffffff;
    --color-surface-overlay: rgba(0, 0, 0, 0.5);
    --color-surface-muted: var(--color-gray-50);

    /* Text */
    --color-text: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-muted: var(--color-gray-400);
    --color-text-inverse: #ffffff;
    --color-text-link: var(--color-primary);
    --color-text-link-hover: var(--color-primary-700);

    /* ---- Typography ---- */
    --font-family-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-heading: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 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-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

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

    /* ---- Spacing ---- */
    --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 */

    /* ---- Shadows ---- */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px 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-primary: 0 4px 14px rgba(54, 113, 224, 0.35);
    --shadow-accent: 0 4px 14px rgba(44, 159, 153, 0.35);

    /* ---- Border Radius ---- */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* ---- Transitions ---- */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* ---- Z-index ---- */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-mobile-nav: 1080;

    /* ---- Layout ---- */
    --navbar-height: 64px;
    --footer-min-height: auto;
    --sidebar-width: 260px;
    --container-max: 1200px;
}