/* 
 * UIT Unión Innova Textil - Sistema de Diseño Profesional
 * 
 * Este archivo implementa un sistema de diseño completo siguiendo
 * las mejores prácticas de UI/UX para empresas de nivel enterprise.
 */

:root {
    /* ===== PALETA DE COLORES CORPORATIVA ===== */
    --uit-primary: #00d4aa;
    --uit-primary-50: #e6faf5;
    --uit-primary-100: #b3f0e0;
    --uit-primary-200: #80e6cc;
    --uit-primary-300: #4ddcb7;
    --uit-primary-400: #1ad2a3;
    --uit-primary-500: #00d4aa;      /* Color base */
    --uit-primary-600: #00b894;
    --uit-primary-700: #009c7e;
    --uit-primary-800: #008068;
    --uit-primary-900: #006452;
    
    --uit-neutral-50: #fafafa;
    --uit-neutral-100: #f5f5f5;
    --uit-neutral-200: #e5e5e5;
    --uit-neutral-300: #d4d4d4;
    --uit-neutral-400: #a3a3a3;
    --uit-neutral-500: #737373;
    --uit-neutral-600: #525252;
    --uit-neutral-700: #404040;
    --uit-neutral-800: #262626;
    --uit-neutral-900: #171717;
    
    --uit-dark: #2c2c2c;
    --uit-black: #000000;
    --uit-white: #ffffff;
    
    /* ===== SISTEMA DE ESPACIADO ===== */
    --space-xs: 0.25rem;    /* 4px */
    --space-sm: 0.5rem;     /* 8px */
    --space-md: 1rem;       /* 16px */
    --space-lg: 1.5rem;     /* 24px */
    --space-xl: 2rem;       /* 32px */
    --space-2xl: 3rem;      /* 48px */
    --space-3xl: 4rem;      /* 64px */
    --space-4xl: 6rem;      /* 96px */
    --space-5xl: 8rem;      /* 128px */
    
    /* ===== SISTEMA DE TIPOGRAFÍA ===== */
    --font-family-sans: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, 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-size-6xl: 3.75rem;   /* 60px */
    --font-size-7xl: 4.5rem;    /* 72px */
    
    --font-weight-light: 300;
    --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-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    /* ===== SISTEMA DE SOMBRAS ===== */
    --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 0 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-uit: 0 10px 25px -3px rgba(0, 212, 170, 0.15), 0 4px 6px -2px rgba(0, 212, 170, 0.1);
    --shadow-uit-lg: 0 20px 40px -5px rgba(0, 212, 170, 0.2), 0 10px 20px -5px rgba(0, 212, 170, 0.1);
    
    /* ===== SISTEMA DE BORDES ===== */
    --border-radius-none: 0;
    --border-radius-sm: 0.125rem;   /* 2px */
    --border-radius-base: 0.25rem;  /* 4px */
    --border-radius-md: 0.375rem;   /* 6px */
    --border-radius-lg: 0.5rem;     /* 8px */
    --border-radius-xl: 0.75rem;    /* 12px */
    --border-radius-2xl: 1rem;      /* 16px */
    --border-radius-3xl: 1.5rem;    /* 24px */
    --border-radius-full: 9999px;
    
    --border-width-0: 0px;
    --border-width-1: 1px;
    --border-width-2: 2px;
    --border-width-4: 4px;
    --border-width-8: 8px;
    
    /* ===== SISTEMA DE TRANSICIONES ===== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* ===== SISTEMA DE 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-toast: 1080;
    
    /* ===== SISTEMA DE BREAKPOINTS ===== */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
    
    /* ===== SISTEMA DE CONTAINERS ===== */
    --container-padding: var(--space-md);
    --container-max-width: 1280px;
    --container-narrow: 768px;
    --container-wide: 1440px;
}

/* ===== RESET PROFESIONAL ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--uit-neutral-800);
    background-color: var(--uit-white);
    overflow-x: hidden;
}

/* ===== SISTEMA DE TIPOGRAFÍA UTILITARIA ===== */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }
.text-5xl { font-size: var(--font-size-5xl); }
.text-6xl { font-size: var(--font-size-6xl); }
.text-7xl { font-size: var(--font-size-7xl); }

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

.leading-tight { line-height: var(--line-height-tight); }
.leading-snug { line-height: var(--line-height-snug); }
.leading-normal { line-height: var(--line-height-normal); }
.leading-relaxed { line-height: var(--line-height-relaxed); }
.leading-loose { line-height: var(--line-height-loose); }

/* ===== SISTEMA DE ESPACIADO UTILITARIO ===== */
.p-xs { padding: var(--space-xs); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }
.p-3xl { padding: var(--space-3xl); }
.p-4xl { padding: var(--space-4xl); }
.p-5xl { padding: var(--space-5xl); }

.m-xs { margin: var(--space-xs); }
.m-sm { margin: var(--space-sm); }
.m-md { margin: var(--space-md); }
.m-lg { margin: var(--space-lg); }
.m-xl { margin: var(--space-xl); }
.m-2xl { margin: var(--space-2xl); }
.m-3xl { margin: var(--space-3xl); }
.m-4xl { margin: var(--space-4xl); }
.m-5xl { margin: var(--space-5xl); }

/* ===== SISTEMA DE SOMBRAS UTILITARIO ===== */
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.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-uit { box-shadow: var(--shadow-uit); }
.shadow-uit-lg { box-shadow: var(--shadow-uit-lg); }

/* ===== SISTEMA DE BORDES UTILITARIO ===== */
.rounded-none { border-radius: var(--border-radius-none); }
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded { border-radius: var(--border-radius-base); }
.rounded-md { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-xl { border-radius: var(--border-radius-xl); }
.rounded-2xl { border-radius: var(--border-radius-2xl); }
.rounded-3xl { border-radius: var(--border-radius-3xl); }
.rounded-full { border-radius: var(--border-radius-full); }

/* ===== SISTEMA DE TRANSICIONES UTILITARIO ===== */
.transition-fast { transition: all var(--transition-fast); }
.transition-normal { transition: all var(--transition-normal); }
.transition-slow { transition: all var(--transition-slow); }
.transition-bounce { transition: all var(--transition-bounce); }

/* ===== COMPONENTES BASE PROFESIONALES ===== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.container-wide {
    max-width: var(--container-wide);
}

/* ===== SISTEMA DE GRID AVANZADO ===== */
.grid-auto-fit {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--min-width, 250px), 1fr));
    gap: var(--gap, var(--space-lg));
}

.grid-auto-fill {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--min-width, 250px), 1fr));
    gap: var(--gap, var(--space-lg));
}

/* ===== SISTEMA DE FLEXBOX UTILITARIO ===== */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-around {
    display: flex;
    align-items: center;
    justify-content: space-around;
}

/* ===== SISTEMA DE ANIMACIONES PROFESIONALES ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s var(--transition-normal) forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s var(--transition-normal) forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s var(--transition-normal) forwards;
}

.animate-scale-in {
    animation: scaleIn 0.5s var(--transition-normal) forwards;
}

.animate-slide-in-up {
    animation: slideInUp 0.8s var(--transition-bounce) forwards;
}

/* ===== SISTEMA DE ESTADOS ===== */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.hover-scale {
    transition: transform var(--transition-normal);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-glow {
    transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: var(--shadow-uit-lg);
}

/* ===== SISTEMA DE FOCUS VISIBLE ===== */
.focus-visible {
    outline: 2px solid var(--uit-primary);
    outline-offset: 2px;
}

/* ===== SISTEMA DE RESPONSIVE UTILITARIO ===== */
@media (min-width: 640px) {
    .sm\:hidden { display: none; }
    .sm\:block { display: block; }
    .sm\:flex { display: flex; }
    .sm\:grid { display: grid; }
}

@media (min-width: 768px) {
    .md\:hidden { display: none; }
    .md\:block { display: block; }
    .md\:flex { display: flex; }
    .md\:grid { display: grid; }
}

@media (min-width: 1024px) {
    .lg\:hidden { display: none; }
    .lg\:block { display: block; }
    .lg\:flex { display: flex; }
    .lg\:grid { display: grid; }
}

@media (min-width: 1280px) {
    .xl\:hidden { display: none; }
    .xl\:block { display: block; }
    .xl\:flex { display: flex; }
    .xl\:grid { display: grid; }
}

/* ===== SISTEMA DE ACCESIBILIDAD ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== SISTEMA DE PRINT ===== */
@media print {
    .no-print { display: none !important; }
    .print-only { display: block !important; }
}