/* ===============================================
   PARKING MADRID - GLOBAL STYLES
   Sistema de diseño unificado
   =============================================== */

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

/* Variables globales */
:root {
    /* Colores principales */
    --primary-gradient: #667eea;
    --primary-color: #667eea;
    --primary-dark: #5a6fd6;
    --secondary-color: #764ba2;
    --accent-color: #00a8e8;
    
    /* Colores de texto */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    
    /* Colores de fondo */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #1a1a2e;
    
    /* Colores semánticos */
    --success-color: #10b981;
    --success-light: #d1fae5;
    --warning-color: #f59e0b;
    --warning-light: #fef3c7;
    --danger-color: #ef4444;
    --danger-light: #fee2e2;
    --info-color: #3b82f6;
    --info-light: #dbeafe;
    
    /* Colores de zonas */
    --zona-azul: #3b82f6;
    --zona-azul-light: #dbeafe;
    --zona-verde: #10b981;
    --zona-verde-light: #d1fae5;
    --madrid-central: #f97316;
    --madrid-central-light: #ffedd5;
    
    /* Bordes y sombras */
    --border-color: #e2e8f0;
    --border-radius-sm: 6px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --border-radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* 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-tooltip: 600;
}

/* Fuentes - Google Fonts Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===============================================
   TIPOGRAFÍA
   =============================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ===============================================
   NAVEGACIÓN GLOBAL
   =============================================== */

.navbar-global {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.navbar-global .nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--text-primary) !important;
    text-decoration: none;
}


.nav-logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.nav-links a.active {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

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

/* Menú móvil */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

/* ===============================================
   CONTENEDORES
   =============================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-lg {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-sm {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===============================================
   HERO SECTIONS
   =============================================== */

.hero-global {
    position: relative;
    background: var(--primary-color);
    padding: var(--spacing-3xl) var(--spacing-lg);
    color: white;
    overflow: hidden;
}

.hero-global::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-global .container {
    position: relative;
    z-index: 1;
}

.hero-global h1 {
    color: white;
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-global .lead {
    font-size: var(--font-size-xl);
    opacity: 0.95;
    max-width: 800px;
    margin-bottom: var(--spacing-xl);
}

.hero-compact {
    padding: var(--spacing-xl) var(--spacing-lg);
}

.hero-compact h1 {
    font-size: var(--font-size-3xl);
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.hero-global .breadcrumb {
    color: rgba(255, 255, 255, 0.8);
}

.hero-global .breadcrumb a {
    color: white;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--text-muted);
}

/* ===============================================
   BOTONES
   =============================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    border-radius: var(--border-radius-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--border-radius);
}

/* ===============================================
   CARDS
   =============================================== */

.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.card-body {
    padding: var(--spacing-lg);
}

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

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* Card con icono */
.card-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

/* Card clickable */
.card-link {
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-link:hover {
    color: inherit;
}

/* ===============================================
   BADGES
   =============================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.badge-success {
    background: var(--success-light);
    color: var(--success-color);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning-color);
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger-color);
}

.badge-info {
    background: var(--info-light);
    color: var(--info-color);
}

/* Badges de zona */
.badge-zona-azul {
    background: var(--zona-azul-light);
    color: var(--zona-azul);
}

.badge-zona-verde {
    background: var(--zona-verde-light);
    color: var(--zona-verde);
}

.badge-madrid-central {
    background: var(--madrid-central-light);
    color: var(--madrid-central);
}

/* Badges de dificultad */
.badge-dificultad-muy-alta {
    background: #fecaca;
    color: #dc2626;
}

.badge-dificultad-alta {
    background: #fed7aa;
    color: #ea580c;
}

.badge-dificultad-media {
    background: #fef08a;
    color: #ca8a04;
}

.badge-dificultad-baja {
    background: #bbf7d0;
    color: #16a34a;
}

/* ===============================================
   ALERTAS
   =============================================== */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.alert-success {
    background: var(--success-light);
    border-left: 4px solid var(--success-color);
    color: #065f46;
}

.alert-warning {
    background: var(--warning-light);
    border-left: 4px solid var(--warning-color);
    color: #92400e;
}

.alert-danger {
    background: var(--danger-light);
    border-left: 4px solid var(--danger-color);
    color: #991b1b;
}

.alert-info {
    background: var(--info-light);
    border-left: 4px solid var(--info-color);
    color: #1e40af;
}

/* ===============================================
   TABLAS
   =============================================== */

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
}

.table thead {
    background: var(--primary-color);
    color: white;
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===============================================
   FORMULARIOS
   =============================================== */

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

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
    color: var(--text-light);
}

/* Search input */
.search-box {
    position: relative;
}

.search-box .form-input {
    padding-left: 48px;
}

.search-box-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: var(--font-size-lg);
}

/* ===============================================
   GRID LAYOUTS
   =============================================== */

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

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ===============================================
   SECCIONES
   =============================================== */

.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header .lead {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.section-alt {
    background: var(--bg-primary);
}

/* ===============================================
   STATS / MÉTRICAS
   =============================================== */

.stat-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.stat-value {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--spacing-xs);
}

/* ===============================================
   PRECIOS
   =============================================== */

.price-display {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
}

.price-period {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
}

.price-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.price-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.price-card.featured {
    border-color: var(--primary-color);
    position: relative;
}

.price-card.featured::before {
    content: 'Más popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

/* ===============================================
   MAPA
   =============================================== */

.map-container {
    height: 500px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.map-fullscreen {
    height: calc(100vh - 70px);
    border-radius: 0;
}

/* ===============================================
   FOOTER GLOBAL
   =============================================== */

.footer-global {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .nav-logo {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.footer-column h4 {
    color: white;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* ===============================================
   LOADING / SKELETON
   =============================================== */

.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--spacing-sm);
}

.skeleton-heading {
    height: 2em;
    width: 60%;
    margin-bottom: var(--spacing-md);
}

.skeleton-card {
    height: 200px;
}

/* ===============================================
   UTILIDADES
   =============================================== */

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

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

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

/* Espaciado */
.mt-0 { margin-top: 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); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.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); }

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

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

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

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

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

.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); }

/* Visibilidad */
.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;
}

/* ===============================================
   RESPONSIVE
   =============================================== */

@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
    }
    
    .navbar-global .nav-container {
        height: 60px;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: var(--z-dropdown);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links a {
        padding: var(--spacing-md);
        justify-content: center;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: none;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-global {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    .container,
    .container-lg,
    .container-sm {
        padding: 0 var(--spacing-md);
    }
    
    .btn {
        width: 100%;
    }
    
    .btn + .btn {
        margin-top: var(--spacing-sm);
    }
}

/* ===============================================
   ANIMACIONES
   =============================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.4s ease forwards;
}

.animate-slide-down {
    animation: slideDown 0.4s ease forwards;
}

/* Animación escalonada para listas */
.stagger-animation > * {
    opacity: 0;
    animation: slideUp 0.4s ease forwards;
}

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

/* ===============================================
   PRINT STYLES
   =============================================== */

@media print {
    .navbar-global,
    .footer-global,
    .btn,
    .nav-toggle {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero-global {
        background: none;
        color: black;
        padding: var(--spacing-md);
    }
    
    .hero-global h1,
    .hero-global .lead {
        color: black;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}