/**
 * Design Tokens - Freguesia App
 * 
 * Pure CSS variables (tokens only) - no utility classes.
 * This file provides the foundation for both Tailwind and custom CSS.
 * 
 * Token Categories:
 * - Colors (primary, secondary, accent, neutral, semantic)
 * - Spacing (8-point grid)
 * - Typography (fonts, sizes, weights, line-heights)
 * - Shadows (elevation system)
 * - Border Radius
 * - Transitions & Easing
 * - Z-Index Scale
 * - Glassmorphism
 */

:root {
    /* ============================================
       COLORS
       ============================================ */
    
    /* Primary - Blue (Trust, Professional) */
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;
    --color-primary-200: #bfdbfe;
    --color-primary-300: #93c5fd;
    --color-primary-400: #60a5fa;
    --color-primary-500: #3b82f6;
    --color-primary-600: #2563eb;
    --color-primary-700: #1d4ed8;
    --color-primary-800: #1e40af;
    --color-primary-900: #1e3a8a;

    /* Tailwind-compatible aliases for primary */
    --color-blue-50: var(--color-primary-50);
    --color-blue-100: var(--color-primary-100);
    --color-blue-200: var(--color-primary-200);
    --color-blue-300: var(--color-primary-300);
    --color-blue-400: var(--color-primary-400);
    --color-blue-500: var(--color-primary-500);
    --color-blue-600: var(--color-primary-600);
    --color-blue-700: var(--color-primary-700);
    --color-blue-800: var(--color-primary-800);
    --color-blue-900: var(--color-primary-900);

    /* Secondary - Emerald/Teal (Growth, Nature) */
    --color-secondary-50: #ecfdf5;
    --color-secondary-100: #d1fae5;
    --color-secondary-200: #a7f3d0;
    --color-secondary-300: #6ee7b7;
    --color-secondary-400: #34d399;
    --color-secondary-500: #10b981;
    --color-secondary-600: #059669;
    --color-secondary-700: #047857;
    --color-secondary-800: #065f46;
    --color-secondary-900: #064e3b;

    /* Tailwind-compatible aliases for secondary (emerald) */
    --color-emerald-50: var(--color-secondary-50);
    --color-emerald-100: var(--color-secondary-100);
    --color-emerald-200: var(--color-secondary-200);
    --color-emerald-300: var(--color-secondary-300);
    --color-emerald-400: var(--color-secondary-400);
    --color-emerald-500: var(--color-secondary-500);
    --color-emerald-600: var(--color-secondary-600);
    --color-emerald-700: var(--color-secondary-700);
    --color-emerald-800: var(--color-secondary-800);
    --color-emerald-900: var(--color-secondary-900);

    /* Accent - Amber (Energy, Warmth) */
    --color-accent-50: #fffbeb;
    --color-accent-100: #fef3c7;
    --color-accent-200: #fde68a;
    --color-accent-300: #fcd34d;
    --color-accent-400: #fbbf24;
    --color-accent-500: #f59e0b;
    --color-accent-600: #d97706;
    --color-accent-700: #b45309;
    --color-accent-800: #92400e;
    --color-accent-900: #78350f;

    /* Tailwind-compatible aliases for accent (amber) */
    --color-amber-50: var(--color-accent-50);
    --color-amber-100: var(--color-accent-100);
    --color-amber-200: var(--color-accent-200);
    --color-amber-300: var(--color-accent-300);
    --color-amber-400: var(--color-accent-400);
    --color-amber-500: var(--color-accent-500);
    --color-amber-600: var(--color-accent-600);
    --color-amber-700: var(--color-accent-700);
    --color-amber-800: var(--color-accent-800);
    --color-amber-900: var(--color-accent-900);

    /* Neutrals (Gray) */
    --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;
    --color-gray-950: #030712;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* ============================================
       SPACING (8-point grid)
       ============================================ */
    --space-0: 0;
    --space-px: 1px;
    --space-0-5: 0.125rem;  /* 2px */
    --space-1: 0.25rem;     /* 4px */
    --space-1-5: 0.375rem;  /* 6px */
    --space-2: 0.5rem;      /* 8px */
    --space-2-5: 0.625rem;  /* 10px */
    --space-3: 0.75rem;     /* 12px */
    --space-3-5: 0.875rem;  /* 14px */
    --space-4: 1rem;        /* 16px */
    --space-5: 1.25rem;     /* 20px */
    --space-6: 1.5rem;      /* 24px */
    --space-7: 1.75rem;     /* 28px */
    --space-8: 2rem;        /* 32px */
    --space-9: 2.25rem;     /* 36px */
    --space-10: 2.5rem;     /* 40px */
    --space-11: 2.75rem;    /* 44px */
    --space-12: 3rem;       /* 48px */
    --space-14: 3.5rem;     /* 56px */
    --space-16: 4rem;       /* 64px */
    --space-20: 5rem;       /* 80px */
    --space-24: 6rem;       /* 96px */
    --space-28: 7rem;       /* 112px */
    --space-32: 8rem;       /* 128px */
    --space-36: 9rem;       /* 144px */
    --space-40: 10rem;      /* 160px */
    --space-44: 11rem;      /* 176px */
    --space-48: 12rem;      /* 192px */
    --space-52: 13rem;      /* 208px */
    --space-56: 14rem;      /* 224px */
    --space-60: 15rem;      /* 240px */
    --space-64: 16rem;      /* 256px */
    --space-72: 18rem;      /* 288px */
    --space-80: 20rem;      /* 320px */
    --space-96: 24rem;      /* 384px */

    /* ============================================
       TYPOGRAPHY
       ============================================ */
    
    /* Font Families */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --font-mono: 'Fira Code', 'Monaco', monospace;

    /* Font Sizes (1.25 scale) */
    --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 */
    --text-7xl: 4.5rem;     /* 72px */
    --text-8xl: 6rem;       /* 96px */
    --text-9xl: 8rem;       /* 128px */

    /* Font Weights */
    --font-thin: 100;
    --font-extralight: 200;
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;

    /* Letter Spacing */
    --tracking-tighter: -0.05em;
    --tracking-tight: -0.025em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;
    --tracking-wider: 0.05em;
    --tracking-widest: 0.1em;

    /* ============================================
       SHADOWS (Elevation System)
       ============================================ */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    --shadow-none: 0 0 #0000;

    /* Colored Shadows */
    --shadow-primary: 0 10px 40px -10px rgb(59 130 246 / 0.4);
    --shadow-secondary: 0 10px 40px -10px rgb(16 185 129 / 0.4);
    --shadow-accent: 0 10px 40px -10px rgb(245 158 11 / 0.4);

    /* Hover Shadows (for cards) */
    --shadow-hover: 0 20px 40px -10px rgb(0 0 0 / 0.15), 0 10px 20px -10px rgb(0 0 0 / 0.1);

    /* Soft shadows for modern UI */
    --shadow-soft: 0 2px 15px -3px rgba(0, 0, 0, 0.07), 0 10px 20px -2px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 4px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-large: 0 10px 40px -10px rgba(0, 0, 0, 0.15), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
    --shadow-glow-lg: 0 0 40px rgba(59, 130, 246, 0.15);

    /* ============================================
       BORDER RADIUS
       ============================================ */
    --radius-none: 0;
    --radius-sm: 0.125rem;  /* 2px */
    --radius-md: 0.25rem;   /* 4px - Tailwind default */
    --radius-lg: 0.5rem;    /* 8px - Standard modern feel */
    --radius-xl: 0.75rem;   /* 12px */
    --radius-2xl: 1rem;     /* 16px */
    --radius-3xl: 1.5rem;   /* 24px */
    --radius-4xl: 2rem;     /* 32px */
    --radius-5xl: 2.5rem;   /* 40px */
    --radius-full: 9999px;

    /* ============================================
       TRANSITIONS
       ============================================ */
    --transition-fast: 150ms;
    --transition-base: 200ms;
    --transition-slow: 300ms;
    --transition-slower: 500ms;

    /* Easing Functions */
    --ease-linear: linear;
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

    /* ============================================
       Z-INDEX SCALE
       ============================================ */
    --z-auto: auto;
    --z-0: 0;
    --z-10: 10;
    --z-20: 20;
    --z-30: 30;
    --z-40: 40;
    --z-50: 50;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-toast: 800;

    /* ============================================
       GLASSMORPHISM
       ============================================ */
    --glass-bg: rgb(255 255 255 / 0.8);
    --glass-bg-dark: rgb(17 24 39 / 0.8);
    --glass-border: rgb(255 255 255 / 0.2);
    --glass-blur: 12px;
    --glass-blur-lg: 20px;

    /* ============================================
       BREAKPOINTS (for reference in JS)
       ============================================ */
    --breakpoint-xs: 475px;
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
    --breakpoint-3xl: 1600px;

    /* ============================================
       CONTAINER WIDTHS
       ============================================ */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;

    /* ============================================
       ASPECT RATIOS
       ============================================ */
    --aspect-square: 1 / 1;
    --aspect-video: 16 / 9;
    --aspect-4-3: 4 / 3;
    --aspect-3-2: 3 / 2;
    --aspect-2-3: 2 / 3;
    --aspect-9-16: 9 / 16;
}

/* ============================================
   DARK MODE VARIABLES
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --glass-bg: rgb(17 24 39 / 0.8);
        --glass-border: rgb(255 255 255 / 0.1);
    }
}

/* Dark mode class-based override */
.dark {
    --glass-bg: rgb(17 24 39 / 0.8);
    --glass-border: rgb(255 255 255 / 0.1);
}