/**
 * SAMA VINTAGE - Base CSS
 * Variables, reset, utilidades y estilos base
 * Versión: 1.0.0
 */

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

:root {
    /* Colores principales */
    --color-primary: #8B1E2D;
    --color-primary-dark: #6B1521;
    --color-secondary: #D4A574;
    
    /* Colores de fondo */
    --color-bg: #FFFFFF;
    --color-bg-light: #FAF8F5;
    --color-bg-cream: #F5F0E8;
    
    /* Colores de texto */
    --color-text: #2C2C2C;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-white: #FFFFFF;
    
    /* Colores de estado */
    --color-success: #48bb78;
    --color-error: #f56565;
    --color-warning: #ed8936;
    --color-info: #4299e1;
    
    /* Tipografía */
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* 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 */
    
    /* Bordes */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 9999px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* ============================================
   2. RESET Y BASE
   ============================================ */

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

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

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   3. UTILIDADES
   ============================================ */

/* Contenedores */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

/* Texto */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

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

/* Espaciado */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

/* Flexbox */
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }

/* Visually hidden (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;
}

/* ============================================
   4. COMPONENTES BASE
   ============================================ */

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border: 1px solid var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

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

.btn-small {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.8125rem;
}

/* Tarjetas */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

/* Formularios */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 30, 45, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Secciones */
.section {
    padding: var(--space-4xl) var(--space-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    color: var(--color-primary);
    font-weight: 500;
}

/* ============================================
   5. LAYOUT BASE
   ============================================ */

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

/* Grid base */
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================
   6. ANIMACIONES
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

/* ============================================
   7. RESPONSIVE BASE
   ============================================ */

@media (max-width: 1024px) {
    :root {
        --space-4xl: 4rem;
    }
    
    .container {
        padding: 0 var(--space-lg);
    }
    
    .section {
        padding: var(--space-3xl) var(--space-lg);
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root {
        --space-3xl: 2.5rem;
        --space-4xl: 3rem;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    .section {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 { grid-template-columns: 1fr; }
    
    .btn {
        width: 100%;
    }
}

/* ============================================
   8. PRINT STYLES
   ============================================ */

@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 10pt;
        color: var(--color-text-light);
    }
}
/* En móvil la cinta superior solo muestra el primer mensaje para no ocupar media pantalla */
@media (max-width: 640px) {
    .trust-ribbon span:not(:first-child) { display: none; }
}