/* ===================================
   VINANSIO UNIFIED THEME SYSTEM
   ===================================
   
   This file contains all theme variables, color schemes,
   typography, spacing, and core design tokens for the
   entire Vinansio application.
   
   Version: 1.0
   Last Updated: 2025-07-30
   ================================== */

/* ===================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ================================== */

:root {
    /* ===== COLOR PALETTE ===== */
    
    /* Primary Brand Colors */
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;
    --color-primary-200: #bfdbfe;
    --color-primary-300: #93c5fd;
    --color-primary-400: #60a5fa;
    --color-primary-500: #3b82f6;  /* Main primary */
    --color-primary-600: #2563eb;
    --color-primary-700: #1d4ed8;
    --color-primary-800: #1e40af;
    --color-primary-900: #1e3a8a;
    
    /* Secondary Colors */
    --color-secondary-50: #f8fafc;
    --color-secondary-100: #f1f5f9;
    --color-secondary-200: #e2e8f0;
    --color-secondary-300: #cbd5e1;
    --color-secondary-400: #94a3b8;
    --color-secondary-500: #64748b;  /* Main secondary */
    --color-secondary-600: #475569;
    --color-secondary-700: #334155;
    --color-secondary-800: #1e293b;
    --color-secondary-900: #0f172a;
    
    /* Semantic Colors */
    --color-success-50: #f0fdf4;
    --color-success-100: #dcfce7;
    --color-success-200: #bbf7d0;
    --color-success-300: #86efac;
    --color-success-400: #4ade80;
    --color-success-500: #22c55e;  /* Main success */
    --color-success-600: #16a34a;
    --color-success-700: #15803d;
    --color-success-800: #166534;
    --color-success-900: #14532d;
    
    --color-danger-50: #fef2f2;
    --color-danger-100: #fee2e2;
    --color-danger-200: #fecaca;
    --color-danger-300: #fca5a5;
    --color-danger-400: #f87171;
    --color-danger-500: #ef4444;  /* Main danger */
    --color-danger-600: #dc2626;
    --color-danger-700: #b91c1c;
    --color-danger-800: #991b1b;
    --color-danger-900: #7f1d1d;
    
    --color-warning-50: #fffbeb;
    --color-warning-100: #fef3c7;
    --color-warning-200: #fde68a;
    --color-warning-300: #fcd34d;
    --color-warning-400: #fbbf24;
    --color-warning-500: #f59e0b;  /* Main warning */
    --color-warning-600: #d97706;
    --color-warning-700: #b45309;
    --color-warning-800: #92400e;
    --color-warning-900: #78350f;
    
    --color-info-50: #f0f9ff;
    --color-info-100: #e0f2fe;
    --color-info-200: #bae6fd;
    --color-info-300: #7dd3fc;
    --color-info-400: #38bdf8;
    --color-info-500: #0ea5e9;  /* Main info */
    --color-info-600: #0284c7;
    --color-info-700: #0369a1;
    --color-info-800: #075985;
    --color-info-900: #0c4a6e;
    
    /* Neutral Colors */
    --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;
    
    /* Background Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-background: var(--color-gray-50);
    --color-surface: var(--color-white);
    --color-surface-hover: var(--color-gray-50);
    
    /* Text Colors */
    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-muted: var(--color-gray-500);
    --color-text-disabled: var(--color-gray-400);
    --color-text-inverse: var(--color-white);
    
    /* Border Colors */
    --color-border-light: var(--color-gray-200);
    --color-border-medium: var(--color-gray-300);
    --color-border-dark: var(--color-gray-400);
    
    /* ===== TYPOGRAPHY ===== */
    
    /* Font Families */
    --font-family-sans: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
    
    /* Font Weights */
    --font-weight-thin: 100;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Font Sizes */
    --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-size-6xl: 3.75rem;     /* 60px */
    
    /* Line Heights */
    --line-height-none: 1;
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    /* ===== SPACING ===== */
    
    --spacing-0: 0;
    --spacing-px: 1px;
    --spacing-0-5: 0.125rem;   /* 2px */
    --spacing-1: 0.25rem;      /* 4px */
    --spacing-1-5: 0.375rem;   /* 6px */
    --spacing-2: 0.5rem;       /* 8px */
    --spacing-2-5: 0.625rem;   /* 10px */
    --spacing-3: 0.75rem;      /* 12px */
    --spacing-3-5: 0.875rem;   /* 14px */
    --spacing-4: 1rem;         /* 16px */
    --spacing-5: 1.25rem;      /* 20px */
    --spacing-6: 1.5rem;       /* 24px */
    --spacing-7: 1.75rem;      /* 28px */
    --spacing-8: 2rem;         /* 32px */
    --spacing-9: 2.25rem;      /* 36px */
    --spacing-10: 2.5rem;      /* 40px */
    --spacing-11: 2.75rem;     /* 44px */
    --spacing-12: 3rem;        /* 48px */
    --spacing-14: 3.5rem;      /* 56px */
    --spacing-16: 4rem;        /* 64px */
    --spacing-20: 5rem;        /* 80px */
    --spacing-24: 6rem;        /* 96px */
    --spacing-28: 7rem;        /* 112px */
    --spacing-32: 8rem;        /* 128px */
    --spacing-36: 9rem;        /* 144px */
    --spacing-40: 10rem;       /* 160px */
    --spacing-44: 11rem;       /* 176px */
    --spacing-48: 12rem;       /* 192px */
    --spacing-52: 13rem;       /* 208px */
    --spacing-56: 14rem;       /* 224px */
    --spacing-60: 15rem;       /* 240px */
    --spacing-64: 16rem;       /* 256px */
    --spacing-72: 18rem;       /* 288px */
    --spacing-80: 20rem;       /* 320px */
    --spacing-96: 24rem;       /* 384px */
    
    /* ===== 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;
    
    /* ===== SHADOWS ===== */
    
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
    
    /* ===== TRANSITIONS ===== */
    
    --transition-none: none;
    --transition-all: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 100ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* ===== Z-INDEX ===== */
    
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal-backdrop: 1040;
    --z-index-modal: 1050;
    --z-index-popover: 1060;
    --z-index-tooltip: 1070;
    --z-index-toast: 1080;
}

/* ===================================
   GLOBAL BASE STYLES
   ================================== */

/* Reset and normalize */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: var(--line-height-normal);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY BASE ===== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-4);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary-600);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--color-primary-700);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

/* Lists */
ul, ol {
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
}

li {
    margin-bottom: var(--spacing-1);
}

/* Code */
code {
    font-family: var(--font-family-mono);
    font-size: 0.875em;
    background-color: var(--color-gray-100);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-base);
    color: var(--color-gray-800);
}

pre {
    font-family: var(--font-family-mono);
    background-color: var(--color-gray-100);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin-bottom: var(--spacing-4);
}

pre code {
    background: none;
    padding: 0;
}

/* ===== FOCUS STYLES ===== */

:focus {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

/* ===== SELECTION STYLES ===== */

::selection {
    background-color: var(--color-primary-200);
    color: var(--color-primary-900);
}

::-moz-selection {
    background-color: var(--color-primary-200);
    color: var(--color-primary-900);
}

/* ===== SCROLLBAR STYLES ===== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-gray-100);
    border-radius: var(--radius-base);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: var(--radius-base);
    transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-300) var(--color-gray-100);
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Mobile first approach */
@media (min-width: 640px) {
    /* sm: Small devices (landscape phones, 640px and up) */
    :root {
        --container-max-width: 640px;
    }
}

@media (min-width: 768px) {
    /* md: Medium devices (tablets, 768px and up) */
    :root {
        --container-max-width: 768px;
    }
}

@media (min-width: 1024px) {
    /* lg: Large devices (desktops, 1024px and up) */
    :root {
        --container-max-width: 1024px;
    }
}

@media (min-width: 1280px) {
    /* xl: Extra large devices (large desktops, 1280px and up) */
    :root {
        --container-max-width: 1280px;
    }
}

@media (min-width: 1536px) {
    /* 2xl: 2X Extra large devices (larger desktops, 1536px and up) */
    :root {
        --container-max-width: 1536px;
    }
}