/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #f3f4f6;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #d1d5db;
    --background: #ffffff;
    --error-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    
    /* Tamaños de fuente accesibles */
    --font-size-small: 0.875rem;
    --font-size-base: 1rem;
    --font-size-large: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

/* Modo de alto contraste */
.high-contrast {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #000000;
    --text-primary: #000000;
    --text-secondary: #000000;
    --border-color: #000000;
    --background: #ffffff;
}

/* Configuración de fuente grande */
.large-text {
    --font-size-small: 1.125rem;
    --font-size-base: 1.25rem;
    --font-size-large: 1.375rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    min-height: 100vh;
}

/* Accesibilidad - Focus visible */
*:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip links para lectores de pantalla */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Header */
.header {
    background: var(--background);
    border-bottom: 2px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.logo:focus,
.logo:hover {
    color: var(--accent-color);
}

/* Navegación */
.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link:focus {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    border: 2px solid transparent;
    border-radius: 0.375rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 44px; /* Mínimo para accesibilidad táctil */
    min-width: 44px;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--secondary-color);
}

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

.btn-danger {
    background-color: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-large);
}

/* Contenedores */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 120px);
}

/* Tarjetas */
.card {
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

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

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--background);
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
    min-height: 44px;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Componentes de color */
.color-palette {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.color-item {
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: var(--spacing-md);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.color-item:hover,
.color-item:focus,
.color-item.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.color-swatch {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
    border: 3px solid var(--border-color);
}

.color-name {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.color-description {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    font-style: italic;
}

/* Grid de prendas */
.clothes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.clothing-card {
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: var(--spacing-md);
    background: var(--background);
    transition: all 0.2s ease;
}

.clothing-card:hover,
.clothing-card:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.clothing-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.375rem;
    margin-bottom: var(--spacing-md);
}

.clothing-info h3 {
    font-size: var(--font-size-large);
    margin-bottom: var(--spacing-sm);
}

.clothing-colors {
    display: flex;
    gap: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.clothing-color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

/* Alertas y mensajes */
.alert {
    padding: var(--spacing-md);
    border-radius: 0.375rem;
    margin-bottom: var(--spacing-lg);
    border: 2px solid;
}

.alert-success {
    background-color: #ecfdf5;
    border-color: var(--success-color);
    color: #065f46;
}

.alert-error {
    background-color: #fef2f2;
    border-color: var(--error-color);
    color: #991b1b;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: var(--warning-color);
    color: #92400e;
}

/* Controles de accesibilidad */
.accessibility-controls {
    position: fixed;
    top: 80px;
    right: var(--spacing-md);
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    padding: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    max-width: 280px;
}

.accessibility-controls h3 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-large);
}

.accessibility-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 24px;
    background-color: var(--secondary-color);
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.toggle-switch.active {
    background-color: var(--primary-color);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.2s;
}

.toggle-switch.active::after {
    transform: translateX(26px);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav {
        flex-direction: column;
        width: 100%;
    }
    
    .clothes-grid {
        grid-template-columns: 1fr;
    }
    
    .color-palette {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .accessibility-controls {
        position: static;
        margin: var(--spacing-lg) 0;
        max-width: none;
    }
}

/* Animaciones accesibles */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Soporte para modo oscuro del sistema */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #1f2937;
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --border-color: #374151;
        --secondary-color: #374151;
    }
}

/* Estados de carga */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Utilidades */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.hidden { display: none; }
.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;
}
.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); }
.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); }