/**
 * AIFA Football Academy - Design System
 * Version: 1.0
 *
 * Table of Contents:
 * 1. CSS Variables (Colors, Typography, Spacing, Shadows, etc.)
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout Utilities
 * 5. Spacing Utilities
 * 6. Color Utilities
 * 7. Display Utilities
 * 8. Flexbox Utilities
 * 9. Grid Utilities
 * 10. Border Utilities
 * 11. Shadow Utilities
 * 12. Animation Utilities
 */

/* ==========================================================================
   1. CSS VARIABLES
   ========================================================================== */

:root {
    /* ----------------------
       Primary Colors (Gold)
       ---------------------- */
    --primary-50: #fefce8;
    --primary-100: #fef9c3;
    --primary-200: #fef08a;
    --primary-300: #fde047;
    --primary-400: #facc15;
    --primary-500: #eab308;  /* Main Primary - Gold */
    --primary-600: #ca8a04;
    --primary-700: #a16207;
    --primary-800: #854d0e;
    --primary-900: #713f12;

    /* Semantic primary aliases */
    --primary: var(--primary-400);
    --primary-light: var(--primary-300);
    --primary-dark: var(--primary-500);
    --primary-hover: var(--primary-300);

    /* ----------------------
       Secondary Colors (White/Light)
       ---------------------- */
    --secondary-50: #ffffff;
    --secondary-100: #fafafa;
    --secondary-200: #f5f5f5;
    --secondary-300: #e5e5e5;
    --secondary-400: #d4d4d4;
    --secondary-500: #a3a3a3;
    --secondary-600: #737373;
    --secondary-700: #525252;
    --secondary-800: #404040;
    --secondary-900: #262626;

    --secondary: var(--secondary-50);

    /* ----------------------
       Dark Colors (Background)
       ---------------------- */
    --dark-50: #1a1a1a;
    --dark-100: #141414;
    --dark-200: #0f0f0f;
    --dark-300: #0a0a0a;  /* Main Dark */
    --dark-400: #050505;
    --dark-500: #030303;  /* Darker */
    --dark-600: #020202;
    --dark-700: #010101;
    --dark-800: #000000;

    --dark: var(--dark-300);
    --darker: var(--dark-500);
    --darkest: var(--dark-800);

    /* ----------------------
       Accent Colors
       ---------------------- */
    --accent-gold: #ffd700;
    --accent-orange: #ff6b35;
    --accent-red: #ef4444;
    --accent-green: #22c55e;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;

    /* ----------------------
       Semantic Colors
       ---------------------- */
    --success: #22c55e;
    --success-light: #86efac;
    --success-dark: #16a34a;

    --warning: #f59e0b;
    --warning-light: #fcd34d;
    --warning-dark: #d97706;

    --error: #ef4444;
    --error-light: #fca5a5;
    --error-dark: #dc2626;
    --danger: #ef4444; /* Alias for error */

    --info: #3b82f6;
    --info-light: #93c5fd;
    --info-dark: #2563eb;

    /* ----------------------
       Glass Effects
       ---------------------- */
    --glass-white-3: rgba(255, 255, 255, 0.03);
    --glass-white-5: rgba(255, 255, 255, 0.05);
    --glass-white-10: rgba(255, 255, 255, 0.1);
    --glass-white-15: rgba(255, 255, 255, 0.15);
    --glass-white-20: rgba(255, 255, 255, 0.2);
    --glass-white-30: rgba(255, 255, 255, 0.3);
    --glass-white-40: rgba(255, 255, 255, 0.4);
    --glass-white-50: rgba(255, 255, 255, 0.5);
    --glass-white-60: rgba(255, 255, 255, 0.6);
    --glass-white-70: rgba(255, 255, 255, 0.7);
    --glass-white-80: rgba(255, 255, 255, 0.8);
    --glass-white-90: rgba(255, 255, 255, 0.9);

    --glass-black-5: rgba(0, 0, 0, 0.05);
    --glass-black-10: rgba(0, 0, 0, 0.1);
    --glass-black-20: rgba(0, 0, 0, 0.2);
    --glass-black-30: rgba(0, 0, 0, 0.3);
    --glass-black-50: rgba(0, 0, 0, 0.5);
    --glass-black-70: rgba(0, 0, 0, 0.7);

    --glass-primary-10: rgba(59, 130, 246, 0.1);
    --glass-primary-15: rgba(59, 130, 246, 0.15);
    --glass-primary-20: rgba(59, 130, 246, 0.2);
    --glass-primary-30: rgba(59, 130, 246, 0.3);

    /* Glass component styles */
    --glass: var(--glass-white-5);
    --glass-border: var(--glass-white-10);
    --glass-hover: var(--glass-white-15);

    /* ----------------------
       Typography
       ---------------------- */
    --font-heading: 'Bebas Neue', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-accent: 'Playfair Display', serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Font Sizes */
    --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;
    --tracking-mega: 0.2em;

    /* ----------------------
       Spacing Scale
       ---------------------- */
    --space-0: 0;
    --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-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 */

    /* ----------------------
       Border Radius
       ---------------------- */
    --radius-none: 0;
    --radius-sm: 0.125rem;   /* 2px */
    --radius-default: 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-4xl: 2rem;      /* 32px */
    --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-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --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);

    /* Glow Shadows */
    --shadow-glow-sm: 0 0 10px rgba(59, 130, 246, 0.3);
    --shadow-glow-md: 0 0 20px rgba(59, 130, 246, 0.4);
    --shadow-glow-lg: 0 0 30px rgba(59, 130, 246, 0.5);
    --shadow-glow-xl: 0 10px 40px rgba(59, 130, 246, 0.4);

    /* Card Shadows */
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-card-gold: 0 10px 30px rgba(59, 130, 246, 0.2);

    /* ----------------------
       Transitions
       ---------------------- */
    --transition-fast: 150ms;
    --transition-normal: 300ms;
    --transition-slow: 500ms;
    --transition-slower: 700ms;

    --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
    --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(0.175, 0.885, 0.32, 1.275);
    --ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* ----------------------
       Z-Index Scale
       ---------------------- */
    --z-negative: -1;
    --z-0: 0;
    --z-10: 10;
    --z-20: 20;
    --z-30: 30;
    --z-40: 40;
    --z-50: 50;
    --z-60: 60;
    --z-70: 70;
    --z-80: 80;
    --z-90: 90;
    --z-100: 100;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
    --z-max: 9999;

    /* ----------------------
       Breakpoints (for reference)
       ---------------------- */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* ----------------------
       Container Widths
       ---------------------- */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1400px;

    /* ----------------------
       Sidebar & Header
       ---------------------- */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
    --header-height: 70px;
    --footer-height: 60px;
}

/* ==========================================================================
   2. RESET & BASE STYLES
   ========================================================================== */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 215, 0, 0.5) transparent;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

/* Custom Scrollbar - Modern Slim Design */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--secondary) 0%, var(--primary) 100%);
}

/* Hide scrollbar when not scrolling (optional - shows on hover/scroll) */
body {
    scrollbar-gutter: stable;
}

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--secondary);
    background-color: var(--darker);
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
    min-width: 320px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Universal overflow prevention */
*::before,
*::after {
    box-sizing: border-box;
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--darker);
}

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

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast) var(--ease-default);
}

a:hover {
    color: var(--primary);
}

/* Images */
img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Lists */
ul,
ol {
    list-style: none;
}

/* Buttons & Inputs */
button,
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
    background: transparent;
    border: none;
    outline: none;
}

button {
    cursor: pointer;
}

/* Focus Styles */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */

/* Headings */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-normal);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-wide);
    color: var(--secondary);
    text-transform: uppercase;
}

h1, .h1 { font-size: clamp(var(--text-5xl), 10vw, var(--text-9xl)); }
h2, .h2 { font-size: clamp(var(--text-4xl), 8vw, var(--text-7xl)); }
h3, .h3 { font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl)); }
h4, .h4 { font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl)); }
h5, .h5 { font-size: var(--text-xl); }
h6, .h6 { font-size: var(--text-lg); }

/* Body Text */
p {
    margin-bottom: var(--space-4);
}

.lead {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    color: var(--glass-white-70);
}

.small {
    font-size: var(--text-sm);
}

.tiny {
    font-size: var(--text-xs);
}

/* Text Styles */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--primary-light), var(--secondary), var(--primary));
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientMove 4s ease infinite;
}

.text-stroke {
    -webkit-text-stroke: 2px var(--glass-white-30);
    color: transparent;
}

.text-accent {
    font-family: var(--font-accent);
    font-style: italic;
    color: var(--primary);
}

.text-mono {
    font-family: var(--font-mono);
}

/* ==========================================================================
   4. LAYOUT UTILITIES
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-2xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 640px) {
    .container { padding-left: var(--space-6); padding-right: var(--space-6); }
}

@media (min-width: 1024px) {
    .container { padding-left: var(--space-8); padding-right: var(--space-8); }
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }

/* Section */
.section {
    padding: var(--space-24) 5%;
    position: relative;
    overflow-x: hidden;
    max-width: 100%;
}

.section-sm { padding: var(--space-16) 5%; }
.section-lg { padding: var(--space-32) 5%; }

/* ==========================================================================
   5. SPACING UTILITIES
   ========================================================================== */

/* Margin */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }
.m-auto { margin: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mt-20 { margin-top: var(--space-20); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }
.mb-20 { margin-bottom: var(--space-20); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.p-10 { padding: var(--space-10); }
.p-12 { padding: var(--space-12); }

.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }

.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-10 { padding-top: var(--space-10); padding-bottom: var(--space-10); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }

/* Gap */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* ==========================================================================
   6. COLOR UTILITIES
   ========================================================================== */

/* Text Colors */
.text-primary { color: var(--primary); }
.text-primary-light { color: var(--primary-light); }
.text-primary-dark { color: var(--primary-dark); }
.text-secondary { color: var(--secondary); }
.text-white { color: #fff; }
.text-dark { color: var(--dark); }
.text-muted { color: var(--glass-white-50); }
.text-light { color: var(--glass-white-70); }

.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.text-danger { color: var(--error); }
.text-info { color: var(--info); }

/* Background Colors */
.bg-primary { background-color: var(--primary); }
.bg-primary-light { background-color: var(--primary-light); }
.bg-primary-dark { background-color: var(--primary-dark); }
.bg-dark { background-color: var(--dark); }
.bg-darker { background-color: var(--darker); }
.bg-white { background-color: #fff; }
.bg-glass { background-color: var(--glass); }

.bg-success { background-color: var(--success); }
.bg-warning { background-color: var(--warning); }
.bg-error { background-color: var(--error); }
.bg-info { background-color: var(--info); }

/* Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.bg-gradient-gold {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.bg-gradient-dark {
    background: linear-gradient(180deg, var(--darker) 0%, var(--dark) 100%);
}

/* ==========================================================================
   7. DISPLAY UTILITIES
   ========================================================================== */

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.visible { visibility: visible; }
.invisible { visibility: hidden; }

.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ==========================================================================
   8. FLEXBOX UTILITIES
   ========================================================================== */

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-row-reverse { flex-direction: row-reverse; }
.flex-col-reverse { flex-direction: column-reverse; }

.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* ==========================================================================
   9. GRID UTILITIES
   ========================================================================== */

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-full { grid-column: 1 / -1; }

/* ==========================================================================
   10. BORDER UTILITIES
   ========================================================================== */

.border { border: 1px solid var(--glass-border); }
.border-0 { border: none; }
.border-2 { border-width: 2px; }
.border-t { border-top: 1px solid var(--glass-border); }
.border-b { border-bottom: 1px solid var(--glass-border); }
.border-l { border-left: 1px solid var(--glass-border); }
.border-r { border-right: 1px solid var(--glass-border); }

.border-primary { border-color: var(--primary); }
.border-white { border-color: #fff; }
.border-glass { border-color: var(--glass-border); }

.rounded-none { border-radius: var(--radius-none); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-default); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-3xl { border-radius: var(--radius-3xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ==========================================================================
   11. SHADOW UTILITIES
   ========================================================================== */

.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-2xl { box-shadow: var(--shadow-2xl); }

.shadow-glow { box-shadow: var(--shadow-glow-md); }
.shadow-glow-lg { box-shadow: var(--shadow-glow-lg); }
.shadow-card { box-shadow: var(--shadow-card); }

/* ==========================================================================
   12. POSITION UTILITIES
   ========================================================================== */

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }

/* ==========================================================================
   13. SIZE UTILITIES
   ========================================================================== */

.w-full { width: 100%; }
.w-auto { width: auto; }
.w-screen { width: 100vw; }
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-screen { height: 100vh; }
.min-h-screen { min-height: 100vh; }

/* ==========================================================================
   14. OVERFLOW UTILITIES
   ========================================================================== */

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }

/* ==========================================================================
   15. TEXT UTILITIES
   ========================================================================== */

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }
.normal-case { text-transform: none; }

.font-thin { font-weight: var(--font-thin); }
.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }
.font-extrabold { font-weight: var(--font-extrabold); }

.italic { font-style: italic; }
.not-italic { font-style: normal; }

.underline { text-decoration: underline; }
.line-through { text-decoration: line-through; }
.no-underline { text-decoration: none; }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Text Sizes */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }
.text-6xl { font-size: var(--text-6xl); }
.text-7xl { font-size: var(--text-7xl); }
.text-8xl { font-size: var(--text-8xl); }

.whitespace-nowrap { white-space: nowrap; }
.whitespace-normal { white-space: normal; }

/* ==========================================================================
   16. CURSOR & INTERACTION
   ========================================================================== */

.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }
.select-none { user-select: none; }
.select-text { user-select: text; }

/* ==========================================================================
   17. TRANSITION UTILITIES
   ========================================================================== */

.transition {
    transition-property: all;
    transition-duration: var(--transition-normal);
    transition-timing-function: var(--ease-default);
}

.transition-fast { transition-duration: var(--transition-fast); }
.transition-slow { transition-duration: var(--transition-slow); }

.ease-in { transition-timing-function: var(--ease-in); }
.ease-out { transition-timing-function: var(--ease-out); }
.ease-in-out { transition-timing-function: var(--ease-in-out); }
.ease-bounce { transition-timing-function: var(--ease-bounce); }

/* ==========================================================================
   18. RESPONSIVE UTILITIES
   ========================================================================== */

/* Mobile menu visibility */
@media (max-width: 991px) {
    .hide-mobile { display: none !important; }
}

@media (min-width: 992px) {
    .hide-desktop { display: none !important; }
}

/* Responsive grid */
@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

/* Responsive flex */
@media (min-width: 768px) {
    .md\:flex-row { flex-direction: row; }
}

/* Responsive display */
@media (max-width: 767px) {
    .mobile\:hidden { display: none; }
}

@media (min-width: 768px) {
    .desktop\:hidden { display: none; }
}