/* =====================================================
   MATERIAL DESIGN 3 - Android Native App Style
   Diseño tipo aplicación nativa de Android
   ===================================================== */

/* Importar Roboto (fuente de Android) */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&display=swap');

/* Variables Material Design 3 - Mejoradas para App Nativa Android */
:root {
    /* Colores primarios Material Design 3 - Más vibrantes */
    --md-primary: #6366F1;
    --md-primary-container: #E0E7FF;
    --md-on-primary: #FFFFFF;
    --md-on-primary-container: #1E1B4B;
    
    /* Colores secundarios - Más modernos */
    --md-secondary: #8B5CF6;
    --md-secondary-container: #EDE9FE;
    --md-on-secondary: #FFFFFF;
    --md-on-secondary-container: #4C1D95;
    
    /* Colores de superficie - Más limpios */
    --md-surface: #FFFFFF;
    --md-surface-variant: #F3F4F6;
    --md-on-surface: #111827;
    --md-on-surface-variant: #6B7280;
    
    /* Colores de fondo - Con gradiente sutil */
    --md-background: #FAFBFC;
    --md-on-background: #111827;
    
    /* Colores de error - Más suaves */
    --md-error: #EF4444;
    --md-error-container: #FEE2E2;
    --md-on-error: #FFFFFF;
    --md-on-error-container: #991B1B;
    
    /* Colores de éxito - Más vibrantes */
    --md-success: #10B981;
    --md-success-container: #D1FAE5;
    
    /* Colores de advertencia - Más cálidos */
    --md-warning: #F59E0B;
    --md-warning-container: #FEF3C7;
    
    /* Elevaciones Material (sombras mejoradas) */
    --md-elevation-0: none;
    --md-elevation-1: 0px 1px 3px 0px rgba(0, 0, 0, 0.12), 0px 1px 2px 0px rgba(0, 0, 0, 0.24);
    --md-elevation-2: 0px 3px 6px 0px rgba(0, 0, 0, 0.15), 0px 2px 4px 0px rgba(0, 0, 0, 0.12);
    --md-elevation-3: 0px 10px 20px 0px rgba(0, 0, 0, 0.15), 0px 3px 6px 0px rgba(0, 0, 0, 0.10);
    --md-elevation-4: 0px 15px 25px 0px rgba(0, 0, 0, 0.15), 0px 5px 10px 0px rgba(0, 0, 0, 0.05);
    --md-elevation-5: 0px 20px 40px 0px rgba(0, 0, 0, 0.2), 0px 7px 13px 0px rgba(0, 0, 0, 0.1);
    
    /* Radios Material */
    --md-radius-xs: 4px;
    --md-radius-sm: 8px;
    --md-radius-md: 12px;
    --md-radius-lg: 16px;
    --md-radius-xl: 28px;
    --md-radius-full: 9999px;
    
    /* Espaciado Material */
    --md-spacing-xs: 4px;
    --md-spacing-sm: 8px;
    --md-spacing-md: 16px;
    --md-spacing-lg: 24px;
    --md-spacing-xl: 32px;
    
    /* Transiciones Material - Más suaves */
    --md-transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --md-transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --md-transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --md-transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Tamaños táctiles Material */
    --md-touch-target: 48px;
    
    /* Colores legacy para compatibilidad */
    --primary: var(--md-primary);
    --primary-hover: #4F46E5;
    --primary-light: var(--md-primary-container);
    --secondary: var(--md-secondary);
    --success: var(--md-success);
    --danger: var(--md-error);
    --accent: var(--md-warning);
    
    --bg-primary: var(--md-surface);
    --bg-secondary: #F9FAFB;
    --bg-tertiary: var(--md-surface-variant);
    --bg-card: var(--md-surface);
    
    --text-primary: var(--md-on-surface);
    --text-secondary: var(--md-on-surface-variant);
    --text-muted: #9CA3AF;
    
    --border-color: #E5E7EB;
    --border-hover: #D1D5DB;
    
    --shadow-sm: var(--md-elevation-1);
    --shadow: var(--md-elevation-2);
    --shadow-md: var(--md-elevation-3);
    --shadow-lg: var(--md-elevation-4);
    
    --radius: var(--md-radius-md);
    --radius-lg: var(--md-radius-lg);
    --radius-xl: var(--md-radius-xl);
    
    --transition: var(--md-transition-base);
    --touch-target: var(--md-touch-target);
}

/* Reset y base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: rgba(103, 80, 164, 0.12);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--md-on-surface);
    background: linear-gradient(180deg, #FAFBFC 0%, #F3F4F6 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

/* Header Material Design - App Bar Mejorado */
.main-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(229, 231, 235, 0.8);
    transition: var(--md-transition-base);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--md-spacing-md);
    width: 100%;
}

.header-content {
    display: grid;
    grid-template-columns: var(--md-touch-target) 1fr var(--md-touch-target);
    align-items: center;
    padding: var(--md-spacing-md) 0;
    gap: var(--md-spacing-md);
    position: relative;
    min-height: 64px;
}

/* Botón de navegación Material */
.btn-back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--md-touch-target);
    height: var(--md-touch-target);
    background: transparent;
    border: none;
    border-radius: var(--md-radius-full);
    cursor: pointer;
    transition: var(--md-transition-fast);
    padding: 0;
    color: var(--md-on-surface);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-back::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-surface);
    opacity: 0;
    border-radius: var(--md-radius-full);
    transition: opacity var(--md-transition-fast);
}

.btn-back:hover::before,
.btn-back:focus::before {
    opacity: 0.08;
}

.btn-back:active::before {
    opacity: 0.12;
}

.back-icon {
    position: relative;
    z-index: 1;
    font-size: 24px;
    line-height: 1;
    user-select: none;
}

/* Logo Material */
.logo {
    margin: 0;
    text-align: center;
    grid-column: 2;
    justify-self: center;
}

.logo a {
    font-size: 20px;
    font-weight: 500;
    color: var(--md-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-spacing-sm);
    padding: var(--md-spacing-sm) 0;
    letter-spacing: 0.15px;
}

/* Header right */
.header-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    grid-column: 3;
}

/* Menú hamburguesa Material */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--md-spacing-sm);
    width: var(--md-touch-target);
    height: var(--md-touch-target);
    justify-content: center;
    align-items: center;
    border-radius: var(--md-radius-full);
    position: relative;
    overflow: hidden;
    transition: var(--md-transition-fast);
}

.menu-toggle::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-surface);
    opacity: 0;
    border-radius: var(--md-radius-full);
    transition: opacity var(--md-transition-fast);
}

.menu-toggle:hover::before,
.menu-toggle:focus::before {
    opacity: 0.08;
}

.menu-toggle:active::before {
    opacity: 0.12;
}

.menu-toggle span {
    position: relative;
    z-index: 1;
    width: 20px;
    height: 2px;
    background: var(--md-on-surface);
    border-radius: 2px;
    transition: var(--md-transition-base);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Navegación Material */
.main-nav {
    display: flex;
    align-items: center;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--md-spacing-xs);
    align-items: center;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: var(--md-on-surface-variant);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    padding: var(--md-spacing-sm) var(--md-spacing-md);
    border-radius: var(--md-radius-xl);
    transition: var(--md-transition-fast);
    display: block;
    min-height: var(--md-touch-target);
    display: flex;
    align-items: center;
    position: relative;
    letter-spacing: 0.1px;
}

.main-nav a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    border-radius: var(--md-radius-xl);
    transition: opacity var(--md-transition-fast);
}

.main-nav a:hover::before,
.main-nav a.active::before {
    opacity: 0.08;
}

.main-nav a:active::before {
    opacity: 0.12;
}

.main-nav a span {
    position: relative;
    z-index: 1;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--md-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--md-spacing-lg) 0;
}

/* Hero Section Material - Mejorado */
.hero {
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-xl) var(--md-spacing-md);
    text-align: center;
    margin-bottom: var(--md-spacing-xl);
    box-shadow: var(--md-elevation-3);
    border: none;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: hero-shine 8s ease-in-out infinite;
}

@keyframes hero-shine {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-10%, -10%) rotate(180deg); }
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: clamp(32px, 7vw, 48px);
    font-weight: 700;
    margin-bottom: var(--md-spacing-md);
    color: var(--md-on-primary);
    line-height: 1.2;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: clamp(16px, 3vw, 20px);
    color: rgba(255, 255, 255, 0.95);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
    letter-spacing: 0.15px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

/* Cards Grid Material */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--md-spacing-md);
    margin: var(--md-spacing-lg) 0;
}

/* Categorías scroll horizontal Material */
.categories-scroll {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    gap: var(--md-spacing-md);
    overflow-x: auto !important;
    overflow-y: visible !important;
    padding: var(--md-spacing-xs) var(--md-spacing-xs) var(--md-spacing-md) var(--md-spacing-xs);
    margin: 0;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--md-surface-variant) transparent;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    align-items: flex-start;
}

.categories-scroll::-webkit-scrollbar {
    height: 4px;
}

.categories-scroll::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 2px;
}

.categories-scroll::-webkit-scrollbar-thumb {
    background: var(--md-surface-variant);
    border-radius: 2px;
}

.categories-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--md-on-surface-variant);
}

/* Category Card Material - Mejorado */
.category-card {
    flex-shrink: 0 !important;
    flex-grow: 0 !important;
    min-width: 300px;
    max-width: 340px;
    width: 300px;
    height: 320px;
    background: var(--md-surface);
    border: none;
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-lg);
    transition: var(--md-transition-base);
    box-shadow: var(--md-elevation-2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-sizing: border-box;
    position: relative;
    cursor: pointer;
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    border-radius: var(--md-radius-lg);
    transition: opacity var(--md-transition-fast);
}

.category-card:hover {
    box-shadow: var(--md-elevation-4);
    transform: translateY(-4px) scale(1.02);
    border-color: var(--md-primary);
}

.category-card:hover::before {
    opacity: 0.12;
}

.category-card:active {
    transform: translateY(-2px) scale(1.01);
    box-shadow: var(--md-elevation-2);
    transition: var(--md-transition-fast);
}

.category-card > * {
    position: relative;
    z-index: 1;
}

.category-card h3 {
    color: var(--md-on-surface);
    margin-bottom: var(--md-spacing-md);
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: -0.2px;
}

.category-card p {
    color: var(--md-on-surface-variant);
    margin-bottom: var(--md-spacing-lg);
    line-height: 1.5;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.25px;
    flex-grow: 1;
}

/* Card Material - Mejorada */
.card {
    background: var(--md-surface);
    border: none;
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-lg);
    transition: var(--md-transition-base);
    box-shadow: var(--md-elevation-2);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    border-radius: var(--md-radius-lg);
    transition: opacity var(--md-transition-fast);
}

.card:hover {
    box-shadow: var(--md-elevation-4);
    transform: translateY(-4px) scale(1.01);
    border-color: var(--md-primary);
}

.card:hover::before {
    opacity: 0.1;
}

.card > * {
    position: relative;
    z-index: 1;
}

.card h3 {
    color: var(--md-on-surface);
    margin-bottom: var(--md-spacing-md);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.2px;
}

.card p {
    color: var(--md-on-surface-variant);
    margin-bottom: var(--md-spacing-lg);
    line-height: 1.5;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.25px;
}

/* Botones Material Design - Mejorados */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--md-spacing-sm);
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    color: var(--md-on-primary);
    border: none;
    border-radius: var(--md-radius-xl);
    font-size: 14px;
    font-weight: 600;
    font-family: 'Roboto', sans-serif;
    cursor: pointer;
    text-decoration: none;
    transition: var(--md-transition-base);
    box-shadow: var(--md-elevation-2);
    min-height: var(--md-touch-target);
    letter-spacing: 0.2px;
    text-transform: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-primary);
    opacity: 0;
    border-radius: var(--md-radius-xl);
    transition: opacity var(--md-transition-fast);
}

.btn:hover {
    box-shadow: var(--md-elevation-3);
    transform: translateY(-2px);
    background: linear-gradient(135deg, var(--primary-hover) 0%, #7C3AED 100%);
}

.btn:hover::before {
    opacity: 0.1;
}

.btn:active {
    box-shadow: var(--md-elevation-1);
    transform: translateY(0) scale(0.98);
    transition: var(--md-transition-fast);
}

.btn:active::before {
    opacity: 0.15;
}

.btn-secondary {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    box-shadow: none;
}

.btn-secondary::before {
    background: var(--md-on-secondary-container);
}

.btn-secondary:hover {
    box-shadow: var(--md-elevation-1);
}

.btn-block {
    width: 100%;
}

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
    min-height: 56px;
}

/* Formularios Material Design */
.form-container {
    max-width: 100%;
    margin: 0 auto;
    background: var(--md-surface);
    padding: var(--md-spacing-lg) var(--md-spacing-md);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-surface-variant);
}

.form-group {
    margin-bottom: var(--md-spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--md-spacing-sm);
    font-weight: 500;
    color: var(--md-on-surface);
    font-size: 12px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group input[type="tel"],
.form-group input[type="file"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px;
    background: transparent;
    border: 1px solid var(--md-outline);
    border-radius: var(--md-radius-sm);
    color: var(--md-on-surface);
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    transition: var(--md-transition-fast);
    -webkit-appearance: none;
    appearance: none;
    min-height: 56px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--md-primary);
    border-width: 2px;
    padding: 15px;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    font-family: 'Roboto', sans-serif;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--md-spacing-md);
}

/* Messages Material */
.message {
    padding: var(--md-spacing-md);
    border-radius: var(--md-radius-sm);
    margin-bottom: var(--md-spacing-lg);
    border-left: 4px solid;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 0.25px;
    box-shadow: var(--md-elevation-1);
}

.message-success {
    background: var(--md-success-container);
    color: var(--md-success);
    border-color: var(--md-success);
}

.message-error {
    background: var(--md-error-container);
    color: var(--md-error);
    border-color: var(--md-error);
}

.message-info {
    background: var(--md-primary-container);
    color: var(--md-primary);
    border-color: var(--md-primary);
}

.message-warning {
    background: var(--md-warning-container);
    color: var(--md-warning);
    border-color: var(--md-warning);
}

/* Footer Material - Mejorado */
.main-footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(229, 231, 235, 0.8);
    padding: var(--md-spacing-lg) 0;
    margin-top: var(--md-spacing-xl);
    text-align: center;
    box-shadow: 0px -2px 8px rgba(0, 0, 0, 0.05);
}

.footer-content p {
    color: var(--md-on-surface-variant);
    margin: var(--md-spacing-xs) 0;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.4px;
}

/* Productos Grid Material */
.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--md-spacing-md);
    margin: var(--md-spacing-lg) 0;
}

.product-card {
    background: var(--md-surface);
    border: none;
    border-radius: var(--md-radius-lg);
    overflow: hidden;
    transition: var(--md-transition-base);
    box-shadow: var(--md-elevation-2);
    position: relative;
    cursor: pointer;
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    transition: opacity var(--md-transition-fast);
    z-index: 1;
}

.product-card:hover {
    box-shadow: var(--md-elevation-4);
    transform: translateY(-4px) scale(1.01);
    border-color: var(--md-primary);
}

.product-card:hover::before {
    opacity: 0.1;
}

.product-card:active {
    transform: translateY(-2px) scale(1.005);
    box-shadow: var(--md-elevation-2);
    transition: var(--md-transition-fast);
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--md-surface-variant);
    display: block;
    position: relative;
    z-index: 0;
}

.product-image-placeholder {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--md-surface-variant);
    font-size: 48px;
    color: var(--md-on-surface-variant);
    position: relative;
    z-index: 0;
}

.product-info {
    padding: var(--md-spacing-md);
    position: relative;
    z-index: 1;
}

.product-category {
    font-size: 11px;
    color: var(--md-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--md-spacing-sm);
    font-weight: 500;
}

.product-card h3 {
    color: var(--md-on-surface);
    margin-bottom: var(--md-spacing-sm);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: -0.1px;
}

.product-description {
    color: var(--md-on-surface-variant);
    font-size: 14px;
    margin-bottom: var(--md-spacing-md);
    line-height: 1.5;
    font-weight: 400;
    letter-spacing: 0.25px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--md-spacing-md);
    padding-top: var(--md-spacing-md);
    border-top: 1px solid var(--md-surface-variant);
}

.product-price {
    font-size: 22px;
    font-weight: 700;
    color: var(--md-primary);
    letter-spacing: -0.3px;
}

.stock-badge {
    padding: 4px 12px;
    border-radius: var(--md-radius-full);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stock-disponible {
    background: var(--md-success-container);
    color: var(--md-success);
}

.stock-bajo {
    background: var(--md-error-container);
    color: var(--md-error);
}

/* Búsqueda Material */
.products-header {
    margin-bottom: var(--md-spacing-lg);
}

.products-header h1 {
    font-size: clamp(32px, 6vw, 42px);
    font-weight: 700;
    margin-bottom: var(--md-spacing-lg);
    color: var(--md-on-surface);
    line-height: 1.2;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.search-form {
    display: flex;
    gap: var(--md-spacing-md);
    margin-bottom: var(--md-spacing-lg);
    flex-direction: column;
}

.search-input {
    flex: 1;
    padding: 16px;
    background: var(--md-surface);
    border: 1px solid var(--md-outline);
    border-radius: var(--md-radius-sm);
    color: var(--md-on-surface);
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    transition: var(--md-transition-fast);
    min-height: 56px;
}

.search-input:focus {
    outline: none;
    border-color: var(--md-primary);
    border-width: 2px;
    padding: 15px;
}

/* Filtros Material */
.filters-top {
    background: var(--md-surface);
    padding: var(--md-spacing-lg) var(--md-spacing-md);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-elevation-1);
    margin-bottom: var(--md-spacing-lg);
    width: 100%;
    overflow: hidden;
    box-sizing: border-box;
    border: 1px solid var(--md-surface-variant);
}

.filters-top h3 {
    margin-bottom: var(--md-spacing-md);
    color: var(--md-on-surface);
    font-size: 16px;
    font-weight: 500;
    padding: 0;
    width: 100%;
    text-align: left;
    letter-spacing: 0.15px;
}

.filters-scroll {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--md-spacing-sm);
    padding: 0;
    margin: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.filters-scroll > *,
.filters-scroll > a {
    display: flex !important;
    align-items: center;
    justify-content: center;
}

.filter-chip {
    display: flex !important;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    background: var(--md-surface-variant);
    color: var(--md-on-surface-variant);
    text-decoration: none;
    border-radius: var(--md-radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--md-transition-fast);
    border: none;
    min-height: var(--md-touch-target);
    text-align: center;
    word-wrap: break-word;
    overflow-wrap: break-word;
    -webkit-tap-highlight-color: transparent;
    width: 100%;
    box-sizing: border-box;
    letter-spacing: 0.1px;
    position: relative;
    overflow: hidden;
}

.filter-chip::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-on-surface-variant);
    opacity: 0;
    border-radius: var(--md-radius-full);
    transition: opacity var(--md-transition-fast);
}

.filter-chip:hover::before {
    opacity: 0.08;
}

.filter-chip:active::before {
    opacity: 0.12;
}

.filter-chip.active {
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    color: var(--md-on-primary);
    font-weight: 600;
    box-shadow: var(--md-elevation-2);
    transform: scale(1.05);
}

.filter-chip span {
    position: relative;
    z-index: 1;
}

.products-results {
    margin-top: 0;
}

/* Detalle de Producto Material */
.product-detail {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--md-spacing-lg);
    background: var(--md-surface);
    padding: var(--md-spacing-md);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-surface-variant);
    margin: var(--md-spacing-lg) 0;
}

.main-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--md-radius-md);
    background: var(--md-surface-variant);
    border: 1px solid var(--md-surface-variant);
}

.main-image-placeholder {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--md-surface-variant);
    border-radius: var(--md-radius-md);
    font-size: 64px;
    color: var(--md-on-surface-variant);
    border: 1px solid var(--md-surface-variant);
}

.product-price-large {
    font-size: 40px;
    font-weight: 700;
    color: var(--md-primary);
    display: block;
    margin: var(--md-spacing-md) 0;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-price-section {
    margin: var(--md-spacing-lg) 0;
    padding: var(--md-spacing-lg) 0;
    border-top: 1px solid var(--md-surface-variant);
    border-bottom: 1px solid var(--md-surface-variant);
}

.product-description-full,
.product-specs,
.product-info-meta {
    margin: var(--md-spacing-lg) 0;
}

.product-description-full h3,
.product-specs h3 {
    color: var(--md-on-surface);
    margin-bottom: var(--md-spacing-md);
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.15px;
}

.specs-content {
    background: var(--md-surface-variant);
    padding: var(--md-spacing-md);
    border-radius: var(--md-radius-sm);
    white-space: pre-line;
    color: var(--md-on-surface-variant);
    line-height: 1.8;
    font-size: 14px;
    border: 1px solid var(--md-surface-variant);
    font-weight: 400;
    letter-spacing: 0.25px;
}

/* Reserva Material */
.reservation-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--md-spacing-lg);
    margin: var(--md-spacing-lg) 0;
}

.reservation-summary {
    background: var(--md-surface);
    padding: var(--md-spacing-lg);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-surface-variant);
    order: 2;
}

.reservation-items {
    margin: var(--md-spacing-lg) 0;
}

.reservation-item {
    display: flex;
    justify-content: space-between;
    padding: var(--md-spacing-md) 0;
    border-bottom: 1px solid var(--md-surface-variant);
    flex-wrap: wrap;
    gap: var(--md-spacing-sm);
}

.reservation-item:last-child {
    border-bottom: none;
}

.item-info {
    flex: 1;
    min-width: 200px;
}

.item-info h4 {
    margin-bottom: var(--md-spacing-xs);
    color: var(--md-on-surface);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.15px;
}

.item-category {
    font-size: 12px;
    color: var(--md-on-surface-variant);
    font-weight: 400;
    letter-spacing: 0.4px;
}

.item-quantity {
    font-size: 12px;
    color: var(--md-on-surface-variant);
    margin-top: var(--md-spacing-xs);
    font-weight: 400;
    letter-spacing: 0.4px;
}

.item-price {
    font-weight: 500;
    color: var(--md-primary);
    font-size: 16px;
    align-self: flex-start;
    letter-spacing: 0.15px;
}

.reservation-total {
    margin-top: var(--md-spacing-lg);
    padding-top: var(--md-spacing-lg);
    border-top: 2px solid var(--md-surface-variant);
    font-size: 24px;
    text-align: right;
    font-weight: 500;
    color: var(--md-on-surface);
    letter-spacing: 0px;
}

.reservation-form-container {
    background: var(--md-surface);
    padding: var(--md-spacing-lg) var(--md-spacing-md);
    border-radius: var(--md-radius-lg);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-surface-variant);
}

.no-products {
    text-align: center;
    padding: var(--md-spacing-xl) var(--md-spacing-lg);
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    border: 1px solid var(--md-surface-variant);
    box-shadow: var(--md-elevation-1);
}

/* Páginas de Autenticación Material - Mejoradas */
.auth-container {
    max-width: 500px;
    margin: 3rem auto;
    padding: 0 var(--md-spacing-md);
}

.auth-box {
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-xl);
    box-shadow: var(--md-elevation-4);
    border: 1px solid rgba(229, 231, 235, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.auth-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary) 0%, var(--md-secondary) 100%);
}

.auth-box h2 {
    margin-bottom: var(--md-spacing-md);
    color: var(--md-on-surface);
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-box .form-group {
    margin-bottom: var(--md-spacing-lg);
}

.auth-box label {
    display: block;
    margin-bottom: var(--md-spacing-sm);
    font-weight: 500;
    color: var(--md-on-surface);
    font-size: 12px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.auth-box input[type="text"],
.auth-box input[type="email"],
.auth-box input[type="tel"],
.auth-box input[type="password"] {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--md-outline);
    border-radius: var(--md-radius-sm);
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    transition: var(--md-transition-fast);
    background: transparent;
    color: var(--md-on-surface);
    min-height: 56px;
}

.auth-box input:focus {
    outline: none;
    border-color: var(--md-primary);
    border-width: 2px;
    padding: 15px;
}

.auth-box .btn {
    width: 100%;
    margin-top: var(--md-spacing-md);
}

/* Página de Perfil Material */
.profile-container {
    max-width: 800px;
    margin: var(--md-spacing-lg) auto;
    padding: 0 var(--md-spacing-md);
}

.profile-container h1 {
    margin-bottom: var(--md-spacing-lg);
    color: var(--md-on-surface);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-sections {
    display: flex;
    flex-direction: column;
    gap: var(--md-spacing-lg);
}

.profile-section {
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-lg);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-surface-variant);
}

.profile-section h2 {
    margin-bottom: var(--md-spacing-lg);
    color: var(--md-on-surface);
    font-size: 22px;
    font-weight: 600;
    border-bottom: 2px solid var(--md-primary);
    padding-bottom: var(--md-spacing-md);
    letter-spacing: -0.2px;
}

/* Responsive - Tablets y Desktop */
@media (min-width: 640px) {
    .container {
        padding: 0 var(--md-spacing-lg);
    }
    
    .main-content {
        padding: var(--md-spacing-xl) 0;
    }
    
    .hero {
        padding: var(--md-spacing-xl) var(--md-spacing-xl);
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--md-spacing-lg);
    }
    
    .category-card {
        min-width: 300px;
        width: 300px;
        height: 280px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--md-spacing-lg);
    }
    
    .form-container {
        padding: var(--md-spacing-xl);
        max-width: 600px;
    }
    
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .search-form {
        flex-direction: row;
    }
    
    .filters-top {
        padding: var(--md-spacing-lg);
    }
    
    .product-detail {
        grid-template-columns: 1fr 1fr;
        padding: var(--md-spacing-xl);
    }
    
    .main-image,
    .main-image-placeholder {
        height: 400px;
    }
    
    .reservation-container {
        grid-template-columns: 1fr 1.5fr;
    }
    
    .reservation-summary {
        order: 1;
        position: sticky;
        top: 100px;
    }
}

@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }
    
    .main-nav {
        display: flex !important;
    }
    
    .filters-scroll {
        gap: var(--md-spacing-md);
    }
    
    .filter-chip {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .filters-top {
        padding: var(--md-spacing-lg) var(--md-spacing-md);
    }
}

@media (min-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--md-spacing-xl);
    }
    
    .category-card {
        min-width: 320px;
        width: 320px;
        height: 280px;
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--md-spacing-xl);
    }
    
    .form-container {
        max-width: 800px;
    }
}

/* Menú Móvil Material */
@media (max-width: 767px) {
    .header-content {
        grid-template-columns: var(--md-touch-target) 1fr var(--md-touch-target);
        gap: var(--md-spacing-sm);
    }
    
    .logo a {
        font-size: 18px;
    }
    
    .btn-back {
        width: var(--md-touch-target);
        height: var(--md-touch-target);
    }
    
    .btn-back .back-icon {
        font-size: 24px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--md-surface);
        border-bottom: 1px solid var(--md-surface-variant);
        box-shadow: var(--md-elevation-3);
        padding: var(--md-spacing-md);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: var(--md-spacing-xs);
        width: 100%;
    }
    
    .main-nav a {
        width: 100%;
        padding: var(--md-spacing-md);
        border-radius: var(--md-radius-xl);
    }
}

/* Scrollbar Material - Mejorada */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--md-surface-variant);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    border-radius: 5px;
    border: 2px solid var(--md-surface-variant);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, #7C3AED 100%);
}

/* Mejoras para APK/WebView */
@supports (-webkit-touch-callout: none) {
    body {
        -webkit-overflow-scrolling: touch;
    }
}

/* Prevenir zoom en inputs en iOS */
@media screen and (max-width: 768px) {
    input[type="color"],
    input[type="date"],
    input[type="datetime"],
    input[type="datetime-local"],
    input[type="email"],
    input[type="month"],
    input[type="number"],
    input[type="password"],
    input[type="search"],
    input[type="tel"],
    input[type="text"],
    input[type="time"],
    input[type="url"],
    input[type="week"],
    select:focus,
    textarea {
        font-size: 16px !important;
    }
}

/* Variables adicionales para compatibilidad */
:root {
    --md-outline: #79747E;
    --primary-color: var(--md-primary);
    --text-dark: var(--md-on-surface);
    --text-light: var(--md-on-surface-variant);
}

/* Animaciones Material - Mejoradas */
@keyframes material-ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* Aplicar animaciones a elementos */
.product-card,
.category-card,
.card {
    animation: fadeInUp 0.5s ease-out;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }

/* Estilos para Mis Reservas - App-like */
.reservas-list {
    display: grid;
    gap: var(--md-spacing-lg);
}

.reserva-card {
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-lg);
    margin-bottom: var(--md-spacing-lg);
    box-shadow: var(--md-elevation-2);
    border: 1px solid rgba(229, 231, 235, 0.5);
    transition: var(--md-transition-base);
    position: relative;
    overflow: hidden;
}

.reserva-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    transition: opacity var(--md-transition-fast);
}

.reserva-card:hover {
    box-shadow: var(--md-elevation-4);
    transform: translateY(-2px);
    border-color: var(--md-primary);
}

.reserva-card:hover::before {
    opacity: 0.05;
}

.reserva-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--md-spacing-md);
    flex-wrap: wrap;
    gap: var(--md-spacing-md);
    position: relative;
    z-index: 1;
}

.reserva-header h3 {
    margin: 0 0 var(--md-spacing-xs) 0;
    color: var(--md-on-surface);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.2px;
}

.reserva-header p {
    margin: 0;
    color: var(--md-on-surface-variant);
    font-size: 14px;
    font-weight: 400;
}

.estado-badge {
    padding: 8px 16px;
    border-radius: var(--md-radius-full);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    letter-spacing: 0.5px;
    box-shadow: var(--md-elevation-1);
}

.estado-badge.estado-pendiente {
    background: var(--md-warning-container);
    color: var(--md-warning);
}

.estado-badge.estado-confirmada {
    background: var(--md-primary-container);
    color: var(--md-primary);
}

.estado-badge.estado-preparada {
    background: var(--md-secondary-container);
    color: var(--md-secondary);
}

.estado-badge.estado-completada {
    background: var(--md-success-container);
    color: var(--md-success);
}

.estado-badge.estado-cancelada {
    background: var(--md-error-container);
    color: var(--md-error);
}

.reserva-items-list {
    margin: var(--md-spacing-md) 0;
    position: relative;
    z-index: 1;
}

.reserva-item-card {
    display: flex;
    gap: var(--md-spacing-md);
    padding: var(--md-spacing-md);
    background: var(--md-surface-variant);
    border-radius: var(--md-radius-sm);
    margin-bottom: var(--md-spacing-sm);
    align-items: center;
}

.reserva-item-image {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--md-radius-sm);
    background: var(--md-surface);
}

.reserva-item-info {
    flex: 1;
}

.reserva-item-info h4 {
    margin: 0 0 var(--md-spacing-xs) 0;
    color: var(--md-on-surface);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.1px;
}

.reserva-item-info p {
    margin: 0;
    color: var(--md-on-surface-variant);
    font-size: 13px;
}

.reserva-item-price {
    font-weight: 700;
    color: var(--md-primary);
    font-size: 18px;
    letter-spacing: -0.3px;
}

.reserva-total-card {
    margin-top: var(--md-spacing-lg);
    padding-top: var(--md-spacing-lg);
    border-top: 2px solid var(--md-surface-variant);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.reserva-total-label {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    letter-spacing: -0.2px;
}

.reserva-total-amount {
    font-size: 28px;
    font-weight: 700;
    color: var(--md-primary);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Estilos para Mis Mensajes - App-like */
.mensajes-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--md-spacing-lg);
    padding-bottom: var(--md-spacing-md);
    border-bottom: 2px solid var(--md-primary);
    flex-wrap: wrap;
    gap: var(--md-spacing-md);
}

.mensajes-header h1 {
    margin: 0;
    font-size: clamp(24px, 5vw, 32px);
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-icon {
    display: flex;
    align-items: center;
    gap: var(--md-spacing-sm);
    font-size: 14px;
    padding: 12px 20px;
    border-radius: var(--md-radius-xl);
    text-decoration: none;
    transition: var(--md-transition-base);
    white-space: nowrap;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    color: var(--md-on-primary);
    border: none;
    box-shadow: var(--md-elevation-2);
    font-weight: 600;
}

.btn-icon:hover {
    box-shadow: var(--md-elevation-3);
    transform: translateY(-2px);
}

.mensajes-filters {
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-md);
    margin-bottom: var(--md-spacing-lg);
    box-shadow: var(--md-elevation-2);
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.mensajes-filter-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--md-spacing-sm);
}

.mensaje-filter-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--md-spacing-sm);
    padding: var(--md-spacing-md) var(--md-spacing-sm);
    background: var(--md-surface-variant);
    color: var(--md-on-surface-variant);
    text-decoration: none;
    border-radius: var(--md-radius-md);
    border: 2px solid transparent;
    transition: var(--md-transition-base);
    min-height: 80px;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.mensaje-filter-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    transition: opacity var(--md-transition-fast);
}

.mensaje-filter-btn:hover::before {
    opacity: 0.08;
}

.mensaje-filter-btn.active {
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    color: var(--md-on-primary);
    border-color: var(--md-primary);
    box-shadow: var(--md-elevation-2);
    transform: scale(1.05);
}

.mensaje-filter-btn .filter-icon {
    font-size: 28px;
    line-height: 1;
    position: relative;
    z-index: 1;
}

.mensaje-filter-btn .filter-text {
    font-size: 13px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.mensajes-list {
    display: grid;
    gap: var(--md-spacing-lg);
}

.mensaje-card {
    background: var(--md-surface);
    border-radius: var(--md-radius-lg);
    padding: var(--md-spacing-lg);
    box-shadow: var(--md-elevation-2);
    border-left: 4px solid var(--md-on-surface-variant);
    transition: var(--md-transition-base);
    position: relative;
    overflow: hidden;
}

.mensaje-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--md-primary);
    opacity: 0;
    transition: opacity var(--md-transition-fast);
}

.mensaje-card:hover {
    box-shadow: var(--md-elevation-4);
    transform: translateY(-2px);
    border-left-color: var(--md-primary);
}

.mensaje-card:hover::before {
    opacity: 0.05;
}

.mensaje-card.estado-respondido {
    border-left-color: var(--md-success);
}

.mensaje-card.estado-leido {
    border-left-color: var(--md-primary);
}

.mensaje-card.estado-nuevo {
    border-left-color: var(--md-warning);
}

.mensaje-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--md-spacing-md);
    flex-wrap: wrap;
    gap: var(--md-spacing-md);
    position: relative;
    z-index: 1;
}

.mensaje-header h3 {
    margin: 0 0 var(--md-spacing-xs) 0;
    color: var(--md-on-surface);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.1px;
}

.mensaje-header p {
    margin: 0;
    color: var(--md-on-surface-variant);
    font-size: 13px;
}

.mensaje-estado-badge {
    padding: 6px 12px;
    border-radius: var(--md-radius-full);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--md-elevation-1);
}

.mensaje-estado-badge.estado-respondido {
    background: var(--md-success-container);
    color: var(--md-success);
}

.mensaje-estado-badge.estado-leido {
    background: var(--md-primary-container);
    color: var(--md-primary);
}

.mensaje-estado-badge.estado-nuevo {
    background: var(--md-warning-container);
    color: var(--md-warning);
}

.mensaje-body {
    position: relative;
    z-index: 1;
}

.mensaje-body p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: var(--md-spacing-sm);
    font-size: 14px;
}

.mensaje-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--md-spacing-md);
    padding-top: var(--md-spacing-md);
    border-top: 1px solid var(--md-surface-variant);
    flex-wrap: wrap;
    gap: var(--md-spacing-sm);
    position: relative;
    z-index: 1;
}

.mensaje-footer span {
    color: var(--md-on-surface-variant);
    font-size: 12px;
}

/* Mejoras para páginas con headers flex */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--md-spacing-lg);
    flex-wrap: wrap;
    gap: var(--md-spacing-md);
}

.page-header h1 {
    margin: 0;
    font-size: clamp(28px, 6vw, 36px);
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Mejoras de legibilidad */
@media (max-width: 768px) {
    body {
        font-size: 16px;
        line-height: 1.5;
    }
    
    h1 {
        font-size: clamp(24px, 6vw, 32px);
        line-height: 1.3;
        margin-bottom: var(--md-spacing-md);
        font-weight: 400;
    }
    
    h2 {
        font-size: clamp(20px, 5vw, 26px);
        line-height: 1.3;
        margin-bottom: var(--md-spacing-md);
        font-weight: 400;
    }
    
    h3 {
        font-size: clamp(18px, 4vw, 22px);
        line-height: 1.4;
        font-weight: 500;
    }
    
    .btn {
        min-height: 48px;
        font-size: 16px;
        padding: 12px 24px;
    }
    
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="password"],
    input[type="number"],
    select,
    textarea {
        min-height: 48px;
        font-size: 16px;
        padding: 14px 16px;
    }
    
    .card {
        padding: var(--md-spacing-md);
        margin-bottom: var(--md-spacing-md);
    }
    
    .container {
        padding: 0 var(--md-spacing-md);
    }
    
    .form-group {
        margin-bottom: var(--md-spacing-lg);
    }
    
    .message {
        padding: var(--md-spacing-md);
        font-size: 14px;
        line-height: 1.5;
    }
}

/* Mejoras para tablets */
@media (min-width: 640px) and (max-width: 1023px) {
    .container {
        padding: 0 var(--md-spacing-lg);
    }
    
    .card {
        padding: var(--md-spacing-lg);
    }
}

/* Feedback táctil mejorado */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
    }
    
    .btn:active {
        transform: scale(0.98);
    }
    
    .card:hover {
        transform: none;
    }
    
    .card:active {
        transform: scale(0.99);
    }
    
    button,
    a.btn,
    input[type="submit"],
    input[type="button"] {
        -webkit-tap-highlight-color: rgba(103, 80, 164, 0.12);
        tap-highlight-color: rgba(103, 80, 164, 0.12);
    }
}

/* Scroll suave en móvil */
@media (max-width: 768px) {
    html {
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
    }
    
    .categories-scroll {
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x proximity;
    }
    
    .category-card {
        scroll-snap-align: start;
    }
}