/* ====================================
   BASE.CSS - Configuración fundamental
   ==================================== */

/* Variables CSS */
:root {
    /* Colores */
    --color-primary: #007bff;
    --color-primary-dark: #0056b3;
    --color-secondary: #6c757d;
    --color-success: #28a745;
    --color-whatsapp: #25d366;
    --color-whatsapp-dark: #1da851;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #cccccc;
    --color-background: #f8f9fa;
    --color-background-dark: #e9ecef;
    
    /* Tipografía */
    --font-primary: 'Poppins', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.3rem;
    --font-size-xxl: 1.8rem;
    --font-size-hero: 4rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --line-height-base: 1.6;
    --line-height-tight: 1.8;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --spacing-section: 6rem;
    
    /* Bordes y sombras */
    --border-radius-sm: 10px;
    --border-radius-md: 15px;
    --border-radius-lg: 50px;
    --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.22);
    
    /* Transiciones */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.6s ease;
    
    /* Z-index */
    --z-background: -100;
    --z-overlay: -50;
    --z-content: 1;
    --z-header: 100;
    --z-buttons: 1000;
    --z-modal: 2000;
    --z-tooltip: 3000;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    overflow-x: hidden;
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* Utilidades de layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--spacing-section) 0;
}

/* Utilidades de texto */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted { color: var(--color-text-muted); }

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

/* Utilidades de espaciado */
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* Botones base */
.btn {
    display: inline-block;
    padding: 15px 30px;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-primary);
    text-decoration: none;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: var(--z-buttons);
    pointer-events: auto !important;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(45deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-text);
}

.btn-whatsapp {
    background: var(--color-whatsapp) !important;
    border-color: var(--color-whatsapp) !important;
    color: var(--color-white);
}

.btn-whatsapp:hover {
    background: var(--color-whatsapp-dark) !important;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Utilidades de visualización */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }

/* Utilidades flex */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-column {
    flex-direction: column;
}

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

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

/* Grid utilities */
.grid {
    display: grid;
}

.grid-auto-fit {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }