/* ============================================
   VARIABLES Y CONFIGURACIÓN GLOBAL
   ============================================ */
:root {
    /* Colores */
    --color-primary: #3b82f6;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-background: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --color-input-bg: #ffffff;
    --color-input-border: #cbd5e1;
    --color-input-focus: #3b82f6;
    --color-button-bg: #3b82f6;
    --color-button-text: #ffffff;
    --color-button-hover: #2563eb;
    --color-button-active: #1d4ed8;
    --color-error: #ef4444;
    --color-error-bg: #fef2f2;
    --color-success: #10b981;
    --color-success-bg: #f0fdf4;
    
    /* Tipografía */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 13px;
    --font-weight-normal: 400;
    --font-weight-bold: 700;
    
    /* Espaciado */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 10px;
    --spacing-lg: 14px;
    --spacing-xl: 18px;
    --spacing-xxl: 24px;
    
    /* Border */
    --border-width: 1px;
    --border-radius: 8px;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* Transiciones */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
}

/* ============================================
   TEMA OSCURO
   ============================================ */
.dark-theme {
    --color-background: #0f172a;
    --color-surface: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-border: #475569;
    --color-input-bg: #1e293b;
    --color-input-border: #475569;
    --color-input-focus: #60a5fa;
    --color-button-bg: #3b82f6;
    --color-button-text: #ffffff;
    --color-button-hover: #60a5fa;
    --color-button-active: #1d4ed8;
    --color-error: #f87171;
    --color-error-bg: #7f1d1d;
    --color-success: #34d399;
    --color-success-bg: #064e3b;
    --color-primary-light: #1e3a5f;
}

.dark-theme body {
    background: linear-gradient(135deg, #0f172a 0%, #1a1f35 100%);
}

.dark-theme .app-container,
.dark-theme .promotions-container {
    background: linear-gradient(135deg, #0f172a 0%, #1a1f35 100%);
}

.dark-theme .app-main {
    background: transparent;
}

.dark-theme .login-content {
    background: linear-gradient(135deg, #0f172a 0%, #1a1f35 100%);
}

.dark-theme .form-group input[type="text"]:focus,
.dark-theme .form-group input[type="password"]:focus,
.dark-theme .form-group input[type="email"]:focus {
    border-color: var(--color-input-focus);
    background-color: #0f172a;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

.dark-theme .business-card:hover {
    background: linear-gradient(135deg, #1e293b 0%, #293548 100%);
}

/* Dark theme - Header y sidebar */
.dark-theme .app-header,
.dark-theme .promotions-header {
    background-color: var(--color-surface);
}

.dark-theme .promotions-sidebar {
    background-color: var(--color-surface);
}

.dark-theme .menu-item:hover,
.dark-theme .menu-item.active {
    background-color: var(--color-primary-light);
}

/* Dark theme - Tables y cards */
.dark-theme .stat-card,
.dark-theme .birthdays-section,
.dark-theme .contacts-table,
.dark-theme .promotion-card,
.dark-theme .settings-group {
    background-color: var(--color-surface);
}

.dark-theme .table-header,
.dark-theme .contacts-table thead {
    background-color: var(--color-primary-light);
}

.dark-theme .contacts-table tbody tr:hover {
    background-color: var(--color-background);
}

/* Dark theme - Buttons */
.dark-theme .filter-btn,
.dark-theme .filter-select,
.dark-theme .btn-action {
    background-color: var(--color-surface);
    border-color: var(--color-border);
}

.dark-theme .filter-btn:hover,
.dark-theme .filter-select:hover {
    background-color: var(--color-background);
}

.dark-theme .btn-action:hover {
    background-color: var(--color-background);
}

.dark-theme .status-inactive {
    background-color: var(--color-background);
    border-color: var(--color-border);
    color: var(--color-text-secondary);
}

.dark-theme .status-inactive:hover {
    background-color: #2d3a4e;
}

/* Dark theme - Modal */
.dark-theme .modal-content {
    background-color: var(--color-surface);
}

.dark-theme .btn-modal-cancel {
    background-color: var(--color-background);
    color: var(--color-text);
}

.dark-theme .btn-modal-cancel:hover {
    background-color: var(--color-border);
}

/* Dark theme - Inputs */
.dark-theme .form-group input,
.dark-theme .contacts-toolbar input,
.dark-theme .messages-toolbar input {
    background-color: var(--color-input-bg);
    border-color: var(--color-input-border);
    color: var(--color-text);
}

.dark-theme .form-group input::placeholder,
.dark-theme .contacts-toolbar input::placeholder,
.dark-theme .messages-toolbar input::placeholder {
    color: var(--color-text-secondary);
}

.dark-theme .form-group input:focus {
    border-color: var(--color-input-focus);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
    background-color: var(--color-input-bg);
}

/* Dark theme - Promo card images */
.dark-theme .promo-image {
    background-color: var(--color-background);
}

/* Dark theme - Mobile menu */
.dark-theme .mobile-menu-panel {
    background-color: var(--color-surface);
}

/* ============================================
   RESET Y ESTILOS BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    width: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   CONTENEDOR PRINCIPAL
   ============================================ */
.login-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--color-background);
}

/* ============================================
   HEADER
   ============================================ */
.login-header {
    padding: 18px var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--color-border);
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.login-header h1 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--color-primary);
    margin: 0;
}

/* ============================================
   CONTENIDO PRINCIPAL
   ============================================ */
.login-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* ============================================
   WRAPPER DEL FORMULARIO
   ============================================ */
.login-form-wrapper {
    width: 100%;
    max-width: 400px;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    box-shadow: var(--shadow-md);
}

.login-form-wrapper h2 {
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
    color: var(--color-text);
}

/* ============================================
   FORMULARIO
   ============================================ */
.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Grupo de formulario */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

/* Etiquetas */
.form-group label {
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.2px;
    color: var(--color-text);
    text-transform: uppercase;
    margin-bottom: 3px;
}

/* Inputs */
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"] {
    width: 100%;
    padding: 8px 10px;
    border: var(--border-width) solid var(--color-input-border);
    border-radius: var(--border-radius);
    background-color: var(--color-input-bg);
    font-size: 13px;
    font-family: var(--font-family);
    font-size: 13px;
    color: var(--color-text);
    outline: none;
    transition: all var(--transition-normal);
}

.form-group input[type="text"]::placeholder,
.form-group input[type="password"]::placeholder,
.form-group input[type="email"]::placeholder {
    color: var(--color-text-secondary);
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus,
.form-group input[type="email"]:focus {
    border-color: var(--color-input-focus);
    background-color: #f0f9ff;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ============================================
   CHECKBOX GROUP
   ============================================ */
.checkbox-group {
    gap: var(--spacing-xs);
    margin: var(--spacing-sm) 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.2px;
    color: var(--color-text);
    cursor: pointer;
    user-select: none;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
    border-radius: 4px;
}

/* ============================================
   BOTÓN LOGIN
   ============================================ */
.btn-login {
    padding: 9px var(--spacing-lg);
    margin-top: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--color-button-bg);
    color: var(--color-button-text);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.3px;
    cursor: pointer;
    text-transform: uppercase;
    outline: none;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-login:hover:not(:disabled) {
    background-color: var(--color-button-hover);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-login:active:not(:disabled) {
    background-color: var(--color-button-active);
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

/* ============================================
   BOTÓN DEMO
   ============================================ */
.btn-demo {
    padding: 10px 24px;
    border: none;
    border-radius: var(--border-radius);
    background-color: #10b981;
    color: white;
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.3px;
    cursor: pointer;
    text-transform: uppercase;
    outline: none;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    margin-top: var(--spacing-md);
}

.btn-demo:hover {
    background-color: #059669;
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

.btn-demo:active {
    background-color: #047857;
    transform: translateY(0);
}

.btn-demo:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

/* ============================================
   BOTÓN PRIMARY
   ============================================ */
.btn-primary {
    padding: 10px 24px;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--color-primary);
    color: var(--color-button-text);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.3px;
    cursor: pointer;
    text-transform: uppercase;
    outline: none;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-button-hover);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    background-color: var(--color-button-active);
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

/* ============================================
   MENSAJE DE ERROR
   ============================================ */
.error-message {
    margin-top: var(--spacing-md);
    padding: 8px 10px;
    display: none;
    background-color: var(--color-error-bg);
    border: var(--border-width) solid var(--color-error);
    border-radius: var(--border-radius);
    color: var(--color-error);
    font-size: 11px;
    font-weight: 500;
    animation: slideDown var(--transition-normal);
}

.error-message.show {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .login-container {
        padding: 0;
    }
    
    .login-header {
        padding: var(--spacing-lg);
    }
    
    .login-header h1 {
        font-size: 20px;
    }
    
    .login-content {
        padding: var(--spacing-lg);
    }
    
    .login-form-wrapper {
        max-width: 100%;
        padding: var(--spacing-lg);
    }
    
    .login-form-wrapper h2 {
        font-size: 18px;
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .login-header {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .login-header h1 {
        font-size: 18px;
    }
    
    .login-content {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .login-form-wrapper {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .login-form-wrapper h2 {
        font-size: 16px;
        margin-bottom: var(--spacing-md);
    }
    
    .login-form {
        gap: var(--spacing-md);
    }
}

/* ============================================
   DASHBOARD - CONTENEDOR PRINCIPAL
   ============================================ */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* ============================================
   DASHBOARD - HEADER
   ============================================ */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px var(--spacing-lg);
    background-color: var(--color-surface);
    border-bottom: var(--border-width) solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-left {
    flex: 1;
}

.app-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--color-primary);
    margin: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.user-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--color-text);
    text-transform: uppercase;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
    color: white;
    flex-shrink: 0;
}

.avatar-initials {
    color: var(--color-button-text);
    font-weight: 700;
    font-size: 12px;
}

.user-name {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 600;
    white-space: nowrap;
}

.settings-btn {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    text-decoration: none;
    text-transform: uppercase;
    padding: 6px 12px;
    border: 1px solid var(--color-primary-light);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    background-color: transparent;
}

.settings-btn:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.logout-btn {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--color-error);
    text-decoration: none;
    text-transform: uppercase;
    padding: 6px 12px;
    border: 1px solid #fecaca;
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    background-color: transparent;
}

.logout-btn:hover {
    background-color: #fecaca;
    color: var(--color-error);
}

/* ============================================
   DASHBOARD - CONTENIDO PRINCIPAL
   ============================================ */
.app-main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 120px;
}

.business-selection {
    width: 100%;
    max-width: 900px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--color-text);
    text-align: center;
    margin: 0 0 var(--spacing-md) 0;
    text-transform: uppercase;
}

.section-divider {
    height: 2px;
    background-color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    border-radius: 1px;
}

/* ============================================
   NEGOCIOS - GRID
   ============================================ */
.businesses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    width: 100%;
}

/* ============================================
   TARJETA DE NEGOCIO
   ============================================ */
.business-card {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.business-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.business-card:active {
    transform: translateY(-2px);
}

.card-content {
    text-align: center;
}

.business-name {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
}

/* ============================================
   RESPONSIVE - DASHBOARD
   ============================================ */
@media (max-width: 768px) {
    .app-header {
        padding: 12px var(--spacing-md);
        flex-wrap: wrap;
    }
    
    .header-right {
        gap: var(--spacing-lg);
    }
    
    .app-main {
        padding: 80px var(--spacing-md) var(--spacing-lg);
    }
    
    .businesses-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .business-card {
        min-height: 160px;
        padding: var(--spacing-lg);
    }
    
    .section-title {
        font-size: 16px;
    }
}

/* ============================================
   AJUSTES - SETTINGS PAGE
   ============================================ */
.settings-container {
    max-width: 400px;
    margin: 0 auto;
}

.settings-group {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.settings-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: var(--color-text);
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
}

.zoom-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.zoom-btn {
    width: 36px;
    height: 36px;
    border: var(--border-width) solid var(--color-border);
    border-radius: calc(var(--border-radius) - 2px);
    background-color: var(--color-background);
    color: var(--color-text);
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.zoom-btn:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.zoom-btn:active {
    transform: scale(0.95);
}

#zoomSlider {
    flex: 1;
    height: 4px;
    border-radius: 2px;
    background: var(--color-border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

#zoomSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

#zoomSlider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.zoom-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    min-width: 45px;
    text-align: right;
}

.settings-help {
    font-size: 11px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* ============================================
   THEME TOGGLE
   ============================================ */
.theme-toggle-container {
    margin-bottom: var(--spacing-lg);
}

.theme-toggle {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-surface);
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.theme-toggle.active {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: var(--color-button-text);
}

.theme-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ============================================
   RESPONSIVE - AJUSTES
   ============================================ */
@media (max-width: 768px) {
    .settings-container {
        max-width: 100%;
        padding: 0;
    }
    
    .settings-group {
        margin-bottom: var(--spacing-lg);
    }
}
.text-center {
    text-align: center;
}

.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-0 {
    margin-bottom: 0;
}

/* ============================================
   PROMOTIONS - CONTENEDOR PRINCIPAL
   ============================================ */
.promotions-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

/* ============================================
   PROMOTIONS - HEADER
   ============================================ */
.promotions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px var(--spacing-lg);
    background-color: var(--color-surface);
    border-bottom: var(--border-width) solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-left {
    flex: 1;
}

.promotions-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--color-text);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.promotions-title span {
    color: var(--color-primary);
}

@media (max-width: 480px) {
    .promotions-title {
        font-size: 13px;
    }
    
    .promotions-title::before {
        content: "";
    }
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.user-label {
    display: none;
}

.user-avatar {
    width: 28px;
    height: 28px;
}

.avatar-initials {
    font-size: 10px;
}

/* ============================================
   MOBILE MENU STYLES (HIDDEN ON DESKTOP)
   ============================================ */

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-right: 12px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2.5px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 200;
    animation: fadeIn 0.3s ease;
}

.mobile-menu-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100vh;
    background-color: var(--color-surface);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 201;
    flex-direction: column;
    animation: slideInLeft 0.3s ease;
}

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

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

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: var(--border-width) solid var(--color-border);
}

.mobile-menu-header h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-text);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-items {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
    display: flex;
    flex-direction: column;
}

.mobile-menu-item {
    padding: 14px 16px;
    text-decoration: none;
    color: var(--color-text);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    display: block;
}

.mobile-menu-item:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.mobile-menu-item.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.mobile-menu-items hr {
    border: none;
    border-top: var(--border-width) solid var(--color-border);
    margin: 8px 0;
}

/* Por defecto en PC, se muestran ambos (PANEL DE PROMOCIONES + nombre) */
.title-prefix {
    display: inline;
}

#businessName {
    display: inline;
}

/* ============================================
   PROMOTIONS - WRAPPER
   ============================================ */
.promotions-wrapper {
    display: flex;
    flex: 1;
    margin-top: 60px;
}

@media (max-width: 480px) {
    .promotions-wrapper {
        margin-top: 50px;
    }
}

/* ============================================
   PROMOTIONS - SIDEBAR
   ============================================ */
.promotions-sidebar {
    width: 140px;
    background-color: var(--color-surface);
    border-right: var(--border-width) solid var(--color-border);
    padding: var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    z-index: 99;
    overflow-y: auto;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.menu-item {
    padding: var(--spacing-md) var(--spacing-lg);
    text-decoration: none;
    color: var(--color-text);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-normal);
    border-left: 3px solid transparent;
}

.menu-item:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.menu-item.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.sidebar-menu-bottom {
    margin-top: auto;
    padding: var(--spacing-lg) 0;
    border-top: var(--border-width) solid var(--color-border);
}

/* ============================================
   PROMOTIONS - MAIN CONTENT
   ============================================ */
.promotions-main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    overflow-y: auto;
    margin-left: 140px;
}

/* ============================================
   STATS GRID
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.stat-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    margin: 0 0 var(--spacing-md) 0;
}

.stat-count {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
}

/* ============================================
   BIRTHDAYS SECTION
   ============================================ */
.birthdays-section {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.section-heading {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--color-text);
    text-transform: uppercase;
    margin: 0 0 var(--spacing-lg) 0;
}

/* ============================================
   TABLE
   ============================================ */
.birthdays-table {
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--color-primary-light);
    border-bottom: var(--border-width) solid var(--color-primary);
}

.table-header .table-cell {
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.3px;
    color: var(--color-primary);
    text-transform: uppercase;
}

.table-body {
    display: flex;
    flex-direction: column;
}

.table-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: var(--border-width) solid var(--color-border);
    transition: background-color var(--transition-normal);
}

.table-row:hover {
    background-color: var(--color-background);
}

.table-row:last-child {
    border-bottom: none;
}

.table-cell {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    color: var(--color-text);
}

/* ============================================
   RESPONSIVE - PROMOTIONS
   ============================================ */
@media (max-width: 768px) {
    /* Ocultar menú hamburger en tablets */
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .title-prefix {
        display: inline !important;
    }
    
    #businessName {
        display: inline !important;
    }
    
    .promotions-sidebar {
        width: 110px;
        padding: var(--spacing-md) 0;
    }
    
    .menu-item {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 10px;
    }
    
    .promotions-main {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    
    .promotions-title {
        font-size: 14px;
    }
}

/* ============================================
   CONTACTOS - CONTACTS PAGE
   ============================================ */
.contacts-container {
    display: flex;
    height: 100%;
}

.contacts-main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

/* ============================================
   CONTACTS TOOLBAR
   ============================================ */
.contacts-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-lg);
}

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

.filter-btn {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    color: var(--color-text);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.2px;
}

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

.filter-select {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    color: var(--color-text);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.2px;
    font-family: var(--font-family);
}

.filter-select:hover {
    background-color: var(--color-background);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================================
   CONTACTS TABLE
   ============================================ */
.contacts-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.contacts-table thead {
    background-color: var(--color-primary-light);
    border-bottom: var(--border-width) solid var(--color-primary);
}

.contacts-table th {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: var(--color-primary);
    text-transform: uppercase;
    text-align: left;
    border-bottom: var(--border-width) solid var(--color-primary);
}

.contacts-table tbody tr {
    border-bottom: var(--border-width) solid var(--color-border);
    transition: background-color var(--transition-fast);
}

.contacts-table tbody tr:hover {
    background-color: var(--color-background);
}

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

.contacts-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    color: var(--color-text);
}

.cell-nombre {
    font-weight: 600;
}

.cell-acciones {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* ============================================
   ACTION BUTTONS
   ============================================ */
.btn-action {
    background-color: transparent;
    border: var(--border-width) solid var(--color-border);
    color: var(--color-text-secondary);
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

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

.btn-edit:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-delete:hover {
    border-color: var(--color-error);
    color: var(--color-error);
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    display: flex;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    animation: fadeIn var(--transition-fast);
    justify-content: center;
    align-items: center;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: var(--color-surface);
    padding: var(--spacing-xl);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.modal-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.close-modal {
    background-color: transparent;
    border: none;
    font-size: 24px;
    font-weight: bold;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-modal:hover {
    color: var(--color-text);
}

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

.form-group label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: var(--color-text);
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    border: var(--border-width) solid var(--color-input-border);
    border-radius: calc(var(--border-radius) - 2px);
    background-color: var(--color-input-bg);
    color: var(--color-text);
    box-sizing: border-box;
    transition: border-color var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-input-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.modal-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
}

.btn-modal {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    font-weight: 600;
    border-radius: calc(var(--border-radius) - 2px);
    border: var(--border-width) solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.2px;
}

.btn-modal-submit {
    background-color: var(--color-primary);
    color: var(--color-button-text);
}

.btn-modal-submit:hover {
    background-color: var(--color-button-hover);
}

.btn-modal-cancel {
    background-color: var(--color-background);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-modal-cancel:hover {
    background-color: var(--color-border);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ============================================
   RESPONSIVE - CONTACTS
   ============================================ */
@media (max-width: 768px) {
    .contacts-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
    }
    
    .modal-content {
        width: 95%;
        margin: 30% auto;
        padding: var(--spacing-lg);
    }
    
    .contacts-table {
        font-size: 11px;
    }
    
    .contacts-table th,
    .contacts-table td {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

@media (max-width: 768px) {
    /* Header adjustments - NO fixed en móvil */
    .promotions-header {
        position: static;
        padding: 6px 4px;
        height: auto;
        display: flex;
        align-items: center;
        gap: 4px;
    }
    
    .header-left {
        display: flex;
        align-items: center;
        gap: 6px;
        flex: 0 0 auto;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column;
        flex-shrink: 0;
        padding: 4px;
        margin: 0;
        width: auto;
        height: auto;
        justify-content: center;
        align-items: center;
        background: none;
        border: none;
        cursor: pointer;
        pointer-events: auto;
        z-index: 1000;
    }
    
    .mobile-menu-toggle span {
        width: 22px;
        height: 2px;
        margin: 2px 0;
        background-color: var(--color-primary);
        display: block;
    }
    
    .promotions-title {
        font-size: 13px;
        margin: 0;
        flex: 0 0 auto;
        text-align: left;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .title-prefix {
        display: none !important;
    }
    
    #businessName {
        font-weight: 700;
        color: var(--color-primary);
        display: inline;
        white-space: nowrap;
    }
    
    .header-right {
        display: none !important;
    }
    
    /* Hide original sidebar */
    .promotions-sidebar {
        display: none !important;
    }
    
    .promotions-wrapper {
        flex-direction: column;
        margin-top: 0;
    }
    
    .promotions-main {
        padding: 8px 6px;
        margin-left: 0;
        margin-top: 0;
    }
    
    /* Show mobile menu when active */
    .mobile-menu-panel.active {
        display: flex;
    }
    
    .mobile-menu-overlay.active {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .stat-card {
        padding: 10px 8px;
    }
    
    .stat-title {
        font-size: 9px;
    }
    
    .stat-count {
        font-size: 22px;
    }
    
    .section-heading {
        font-size: 11px;
    }
    
    .table-header .table-cell {
        padding: 6px 4px;
        font-size: 9px;
    }
    
    .table-cell {
        padding: 6px 4px;
        font-size: 10px;
    }
    
    .birthdays-section {
        padding: 8px;
    }
}

/* ============================================
   MENSAJES - MESSAGES & PROMOTIONS PAGE
   ============================================ */
.mensajes-main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    overflow-y: auto;
}

/* ============================================
   MESSAGES TOOLBAR
   ============================================ */
.messages-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-lg);
}

.messages-toolbar .filters {
    display: flex;
    gap: var(--spacing-md);
}

/* ============================================
   PROMOTIONS LIST
   ============================================ */
.promotions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ============================================
   PROMOTION CARD
   ============================================ */
.promotion-card {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: grid;
    grid-template-columns: 120px 1fr 180px;
    gap: var(--spacing-lg);
    align-items: center;
    transition: all var(--transition-normal);
}

.promotion-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.promo-image {
    width: 120px;
    height: 120px;
    border-radius: calc(var(--border-radius) - 2px);
    overflow: hidden;
    background-color: var(--color-background);
}

.promo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.promo-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.promo-title {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
}

.promo-description {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.4;
}

.promo-date {
    font-size: 11px;
    color: var(--color-text-secondary);
    margin: 0;
}

.promo-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.promo-status {
    display: flex;
    gap: var(--spacing-sm);
}

.status-btn {
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
    border: var(--border-width) solid var(--color-border);
    border-radius: calc(var(--border-radius) - 2px);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    background-color: var(--color-background);
    color: var(--color-text);
}

.status-active {
    border-color: var(--color-success);
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.status-active:hover {
    background-color: #d1fae5;
}

.status-inactive {
    border-color: #d1d5db;
    background-color: #f9fafb;
    color: var(--color-text-secondary);
}

.status-inactive:hover {
    background-color: #f3f4f6;
}

.btn-edit-promo {
    padding: 8px 16px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
    border: var(--border-width) solid var(--color-border);
    border-radius: calc(var(--border-radius) - 2px);
    background-color: var(--color-background);
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
}

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

.btn-edit-promo:active {
    transform: translateY(1px);
}

/* ============================================
   FORM GROUP TEXTAREA
   ============================================ */
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    font-family: var(--font-family);
    border: var(--border-width) solid var(--color-input-border);
    border-radius: calc(var(--border-radius) - 2px);
    background-color: var(--color-input-bg);
    color: var(--color-text);
    box-sizing: border-box;
    transition: border-color var(--transition-fast);
    resize: vertical;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--color-input-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================================
   RESPONSIVE - MENSAJES
   ============================================ */
@media (max-width: 768px) {
    .messages-toolbar {
        flex-direction: column;
        align-items: stretch;
        margin-bottom: var(--spacing-lg);
    }
    
    .messages-toolbar .filters {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
    }
    
    .promotion-card {
        grid-template-columns: 80px 1fr 100px;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .promo-image {
        width: 80px;
        height: 80px;
    }
    
    .promo-title {
        font-size: 12px;
    }
    
    .promo-description {
        font-size: 11px;
        display: none;
    }
    
    .status-btn {
        padding: 5px 10px;
        font-size: 10px;
    }
    
    .btn-edit-promo {
        padding: 6px 12px;
        font-size: 10px;
    }
    
    .mensajes-main {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .promotion-card {
        grid-template-columns: 60px 1fr;
        gap: 6px;
        padding: 8px 4px;
    }
    
    .promo-image {
        width: 60px;
        height: 60px;
        grid-row: 1 / 3;
    }
    
    .promo-content {
        gap: 4px;
    }
    
    .promo-actions {
        grid-column: 2;
        flex-direction: row;
        gap: 4px;
        align-items: center;
        justify-content: flex-end;
    }
    
    .promo-title {
        font-size: 10px;
    }
    
    .promo-description {
        font-size: 9px;
        display: none;
    }
    
    .promo-date {
        display: none;
    }
    
    .status-btn {
        padding: 3px 6px;
        font-size: 8px;
    }
    
    .btn-edit-promo {
        padding: 3px 6px;
        font-size: 8px;
    }
    
    .messages-toolbar {
        flex-direction: column;
        gap: 6px;
    }
    
    .messages-toolbar .filters {
        flex-direction: column;
        gap: 4px;
        width: 100%;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .mensajes-main {
        padding: 8px 4px;
    }
}

/* ============================================
   ENVIAR - SEND CAMPAIGNS PAGE
   ============================================ */
.enviar-main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    overflow-y: auto;
}

/* ============================================
   CAMPAIGNS LIST
   ============================================ */
.campaigns-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ============================================
   CAMPAIGN CARD (DEPRECATED - Use promotion-card)
   ============================================ */
/* Estilos antiguos mantenidos para compatibilidad - las campañas ahora usan .promotion-card */
.campaign-card {
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: grid;
    grid-template-columns: 120px 1fr 180px;
    gap: var(--spacing-lg);
    align-items: center;
    transition: all var(--transition-normal);
}

.campaign-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.campaign-card.sent {
    opacity: 0.8;
    border-color: var(--color-success);
}

.campaign-image {
    width: 120px;
    height: 120px;
    border-radius: calc(var(--border-radius) - 2px);
    overflow: hidden;
    background-color: var(--color-background);
}

.campaign-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.campaign-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.campaign-title {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
}

.campaign-description {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.4;
}

.campaign-date {
    font-size: 11px;
    color: var(--color-text-secondary);
    margin: 0;
}

.campaign-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.btn-send {
    padding: 8px 16px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
    border: var(--border-width) solid var(--color-border);
    border-radius: calc(var(--border-radius) - 2px);
    background-color: var(--color-background);
    color: var(--color-success);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
}

.btn-send:hover:not(:disabled) {
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.btn-send:active:not(:disabled) {
    transform: translateY(1px);
}

.btn-send:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-send.btn-sent {
    background-color: var(--color-success-bg);
    border-color: var(--color-success);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* ============================================
   RESPONSIVE - ENVIAR
   ============================================ */
@media (max-width: 768px) {
    .campaign-card {
        grid-template-columns: 100px 1fr 120px;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .campaign-image {
        width: 100px;
        height: 100px;
    }
    
    .campaign-title {
        font-size: 13px;
    }
    
    .campaign-description {
        font-size: 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .btn-send {
        padding: 8px 16px;
        font-size: 11px;
    }
    
    .enviar-main {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .campaign-card {
        grid-template-columns: 80px 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .campaign-image {
        width: 80px;
        height: 80px;
        grid-row: 1 / 4;
    }
    
    .campaign-actions {
        grid-column: 2;
        justify-content: flex-end;
    }
    
    .campaign-title {
        font-size: 12px;
    }
    
    .campaign-description {
        font-size: 11px;
        -webkit-line-clamp: 1;
        line-clamp: 1;
    }
    
    .campaign-date {
        display: none;
    }
    
    .btn-send {
        padding: 6px 12px;
        font-size: 10px;
    }
    
    .enviar-main {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.hidden {
    display: none !important;
}

/* ============================================
   CAMPAIGNS SECTION
   ============================================ */
.campaigns-section {
    display: block;
}

/* ============================================
   SELECT CONTACTS SECTION
   ============================================ */
.select-contacts-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    height: 100%;
    min-height: 500px;
}

.contacts-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--color-border);
}

.contacts-header-bar .section-title {
    margin: 0;
    flex: 1;
}

.header-actions {
    display: flex;
    gap: var(--spacing-lg);
}

.btn-secondary {
    padding: 10px 24px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-background);
    border-color: var(--color-text-secondary);
    color: var(--color-text);
}

.btn-secondary:active:not(:disabled) {
    transform: translateY(1px);
}

.btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   CONTACTS SELECTION TABLE
   ============================================ */
.contacts-selection-wrapper {
    max-height: 500px;
    overflow-y: auto;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-surface);
}

.contacts-selection-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.contacts-selection-table tbody {
    display: table-row-group !important;
    visibility: visible !important;
}

.contacts-selection-table thead {
    background-color: var(--color-primary-light);
    border-bottom: var(--border-width) solid var(--color-primary);
    position: sticky;
    top: 0;
}

.contacts-selection-table th {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: var(--color-primary);
    text-transform: uppercase;
    text-align: left;
    border-bottom: var(--border-width) solid var(--color-primary);
}

.contacts-selection-table tbody tr {
    border-bottom: var(--border-width) solid var(--color-border);
    transition: background-color var(--transition-fast);
    background-color: var(--color-surface);
    visibility: visible !important;
}

.contacts-selection-table tbody tr:hover {
    background-color: var(--color-background);
}

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

.contacts-selection-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 12px;
    color: var(--color-text);
    background-color: var(--color-surface);
    visibility: visible !important;
}

/* ============================================
   TEMA OSCURO - TABLA DE CONTACTOS
   ============================================ */
.dark-theme .contacts-selection-table tbody tr {
    background-color: var(--color-surface);
}

.dark-theme .contacts-selection-table tbody tr:hover {
    background-color: #334155;
}

.dark-theme .contacts-selection-table td {
    color: var(--color-text);
    background-color: var(--color-surface);
}

/* ============================================
   TABLE COLUMNS
   ============================================ */
.col-select {
    text-align: center;
    width: 50px;
}

.col-nombre {
    font-weight: 600;
    width: 20%;
}

.col-cumpleaños {
    width: 12%;
}

.col-email {
    width: 30%;
}

.col-celular {
    width: 25%;
}

/* ============================================
   CHECKBOX STYLING
   ============================================ */
.checkbox-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
    border-radius: 3px;
    border: var(--border-width) solid var(--color-border);
}

.checkbox-input:hover {
    border-color: var(--color-primary);
}

.checkbox-input:indeterminate {
    accent-color: var(--color-primary);
}

.contact-checkbox {
    margin: 0;
}

/* ============================================
   RESPONSIVE - SELECT CONTACTS
   ============================================ */
@media (max-width: 768px) {
    .contacts-header-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .contacts-selection-table th,
    .contacts-selection-table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 11px;
    }
    
    .col-nombre {
        width: 25%;
    }
    
    .col-cumpleaños {
        width: 15%;
    }
    
    .col-email {
        width: 35%;
    }
    
    .col-celular {
        display: none;
    }
}

@media (max-width: 480px) {
    .contacts-header-bar {
        padding-bottom: var(--spacing-md);
    }
    
    .contacts-header-bar .section-title {
        font-size: 14px;
    }
    
    .header-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 8px 12px;
        font-size: 11px;
    }
    
    .contacts-selection-table th,
    .contacts-selection-table td {
        padding: var(--spacing-sm) var(--spacing-xs);
        font-size: 10px;
    }
    
    .col-nombre {
        width: 40%;
    }
    
    .col-cumpleaños {
        width: 20%;
    }
    
    .col-email {
        width: 40%;
    }
    
    .col-celular {
        display: none;
    }
    
    .contacts-selection-wrapper {
        max-height: 50vh;
    }
}

/* ============================================
   RESPONSIVE DESIGN - TABLETS Y MÓVILES
   ============================================ */

/* TABLETS EN PORTRAIT (768px - 1024px) */
@media (max-width: 1024px) {
    .promotions-wrapper {
        flex-direction: column;
    }
    
    .promotions-sidebar {
        position: static;
        width: 100%;
        height: auto;
        padding: 0;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .sidebar-menu {
        display: flex;
        flex-direction: row;
        gap: 0;
        padding: 0;
    }
    
    .menu-item {
        flex: 1;
        text-align: center;
        padding: 12px 8px;
        border-right: 1px solid var(--color-border);
    }
    
    .sidebar-menu-bottom {
        border-top: 1px solid var(--color-border);
        margin-top: 0;
    }
    
    .promotions-main {
        padding: var(--spacing-lg);
    }
}

/* TABLETS EN LANDSCAPE (1025px Y MÓVILES GRANDES) */
@media (max-width: 768px) {
    /* Header */
    .promotions-header {
        height: 50px;
    }
    
    .promotions-title {
        font-size: 16px;
    }
    
    /* Sidebar como top nav */
    .promotions-sidebar {
        position: static;
        width: 100%;
        height: auto;
        padding: 0;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .sidebar-menu {
        display: flex;
        flex-direction: row;
        gap: 0;
        padding: 0;
    }
    
    .menu-item {
        flex: 1;
        text-align: center;
        padding: 10px;
        border-right: 1px solid var(--color-border);
        font-size: 11px;
    }
    
    .sidebar-menu-bottom {
        border-top: 1px solid var(--color-border);
        margin-top: 0;
    }
    
    /* Main content */
    .promotions-main {
        padding: var(--spacing-md);
    }
    
    /* Stats */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Tables */
    .contacts-table,
    .contacts-selection-table {
        font-size: 12px;
    }
    
    .contacts-table th,
    .contacts-table td,
    .contacts-selection-table th,
    .contacts-selection-table td {
        padding: 8px 4px;
    }
    
    /* Modals */
    .modal-content {
        width: 95%;
        max-width: 95%;
    }
    
    /* Forms */
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    .modal-buttons {
        gap: var(--spacing-sm);
    }
    
    .btn-modal {
        flex: 1;
        padding: 10px;
        font-size: 12px;
    }
    
    /* Birthdays */
    .birthdays-section {
        padding: var(--spacing-md);
    }
    
    .table-header,
    .table-body .table-row {
        font-size: 11px;
    }
}

/* MÓVILES (máximo 480px) */
@media (max-width: 480px) {
    /* Container */
    .promotions-container {
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }
    
    /* Header - Más compacto */
    .promotions-header {
        height: 45px;
        padding: 8px 12px;
    }
    
    .promotions-title {
        font-size: 14px;
        font-weight: 600;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 11px;
    }
    
    /* Sidebar como bottom nav o horizontal */
    .promotions-sidebar {
        position: static;
        width: 100%;
        padding: 0;
        border: none;
        order: 2;
    }
    
    .sidebar-menu {
        display: flex;
        flex-direction: row;
        gap: 0;
        padding: 0;
    }
    
    .menu-item {
        flex: 1;
        padding: 10px 4px;
        text-align: center;
        font-size: 10px;
        border-right: 1px solid var(--color-border);
        overflow: hidden;
        white-space: nowrap;
        text-overflow: ellipsis;
    }
    
    .menu-item:last-child {
        border-right: none;
    }
    
    .menu-item.active {
        background-color: var(--color-primary-light);
        font-weight: 700;
    }
    
    .sidebar-menu-bottom {
        border-top: 1px solid var(--color-border);
        margin-top: 0;
    }
    
    /* Main content */
    .promotions-main {
        flex: 1;
        padding: var(--spacing-sm);
        order: 1;
    }
    
    .section-title {
        font-size: 14px;
        margin-bottom: var(--spacing-sm);
    }
    
    /* Stats - Single column */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-title {
        font-size: 11px;
    }
    
    .stat-count {
        font-size: 18px;
    }
    
    /* Toolbar */
    .contacts-toolbar,
    .messages-toolbar {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .filters {
        width: 100%;
        gap: var(--spacing-xs);
    }
    
    .filter-select,
    .filter-btn,
    .btn-primary {
        width: 100%;
        padding: 8px 12px;
        font-size: 12px;
    }
    
    /* Tables - Card layout */
    .contacts-table-wrapper {
        overflow-x: auto;
    }
    
    .contacts-table,
    .promotions-list {
        width: 100%;
        font-size: 11px;
    }
    
    .contacts-table th,
    .contacts-table td {
        padding: 6px 4px;
        font-size: 10px;
    }
    
    th:nth-child(n+4),
    td:nth-child(n+4) {
        display: none;
    }
    
    /* Modals - Full width */
    .modal {
        padding: 12px;
    }
    
    .modal-content {
        width: 100%;
        max-width: 100%;
        margin: auto;
    }
    
    .modal-header {
        margin-bottom: var(--spacing-md);
    }
    
    .modal-title {
        font-size: 14px;
    }
    
    .close-modal {
        font-size: 20px;
    }
    
    .modal-form {
        width: 100%;
    }
    
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    .form-group label {
        font-size: 11px;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 13px;
        padding: 8px;
    }
    
    .modal-buttons {
        gap: var(--spacing-sm);
        flex-direction: column;
    }
    
    .btn-modal {
        width: 100%;
        padding: 10px;
        font-size: 12px;
    }
    
    /* Promociones list - Card style */
    .promotion-card {
        margin-bottom: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .promotion-image {
        height: 150px;
    }
    
    .promotion-title {
        font-size: 12px;
    }
    
    .promotion-description {
        font-size: 11px;
    }
    
    /* Birthdays */
    .birthdays-section {
        padding: var(--spacing-md);
    }
    
    .table-header,
    .table-row {
        padding: var(--spacing-sm);
        font-size: 11px;
    }
    
    /* Filters y selects */
    .filter-select {
        font-size: 12px;
    }
    
    /* Campañas */
    .campaigns-list {
        gap: var(--spacing-md);
    }
    
    .campaign-card {
        padding: var(--spacing-md);
    }
    
    .campaign-title {
        font-size: 12px;
    }
}

/* LANDSCAPE MODE (cualquier pantalla en horizontal) */
@media (orientation: landscape) and (max-height: 600px) {
    .promotions-header {
        height: 40px;
    }
    
    .promotions-title {
        font-size: 12px;
    }
    
    .promotions-main {
        max-height: calc(100vh - 40px - 50px);
        overflow-y: auto;
    }
    
    .sidebar-menu {
        padding: 0;
    }
    
    .menu-item {
        padding: 8px;
        font-size: 9px;
    }
    
    .stat-card {
        padding: 10px;
    }
    
    .stat-count {
        font-size: 16px;
    }
}

/* iPad Pro y tablets grandes (768px+) */
@media (min-width: 768px) and (max-width: 1024px) {
    .promotions-sidebar {
        width: 150px;
    }
    
    .sidebar-menu {
        flex-direction: column;
    }
    
    .menu-item {
        flex: 1;
        text-align: left;
        padding: 12px;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        max-width: 90%;
    }
}

/* Tema light en pantallas pequeñas */
@media (max-width: 480px) {
    body {
        background: var(--color-background);
    }
    
    .promotions-container {
        background: var(--color-background);
    }
    
    .modal {
        background-color: rgba(0, 0, 0, 0.5);
    }
}

/* Ajustes de performance en móviles */
@media (max-width: 480px) {
    * {
        -webkit-tap-highlight-color: transparent;
    }
    
    button,
    a {
        min-height: 44px;
        min-width: 44px;
    }
    
    input,
    textarea,
    select {
        min-height: 44px;
    }
}

/* ============================================
   REGISTRO - REGISTRATION PAGES
   ============================================ */
.registration-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--color-background);
}

.registration-header {
    padding: 24px var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--color-border);
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.registration-header-gym {
    background: linear-gradient(135deg, #f8fafc 0%, #e8f5e9 100%);
}

.header-content {
    text-align: center;
}

.registration-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--color-primary);
    margin: 0 0 var(--spacing-sm) 0;
}

.registration-header-gym .registration-title {
    color: #10b981;
}

.registration-subtitle {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
    letter-spacing: 0.3px;
}

.registration-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.registration-card {
    width: 100%;
    max-width: 600px;
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

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

.card-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm) 0;
    letter-spacing: -0.3px;
}

.card-header p {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin: 0;
}

.registration-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-section {
    border: none;
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: calc(var(--border-radius) - 2px);
    margin: 0;
}

.section-legend {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--color-primary);
    text-transform: uppercase;
    margin: 0 0 var(--spacing-lg) 0;
    padding: 0;
    display: block;
}

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

.registration-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.registration-form label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: var(--color-text);
    text-transform: uppercase;
}

.registration-form input[type="text"],
.registration-form input[type="email"],
.registration-form input[type="tel"],
.registration-form input[type="date"],
.registration-form select,
.registration-form textarea {
    width: 100%;
    padding: 8px 10px;
    font-size: 13px;
    font-family: var(--font-family);
    border: var(--border-width) solid var(--color-input-border);
    border-radius: calc(var(--border-radius) - 2px);
    background-color: var(--color-input-bg);
    color: var(--color-text);
    transition: all var(--transition-normal);
    outline: none;
}

.registration-form input::placeholder,
.registration-form textarea::placeholder {
    color: var(--color-text-secondary);
}

.registration-form input:focus,
.registration-form select:focus,
.registration-form textarea:focus {
    border-color: var(--color-input-focus);
    background-color: #f0f9ff;
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.registration-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233b82f6' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 30px;
}

.registration-form textarea {
    resize: vertical;
    min-height: 80px;
}

.form-error {
    font-size: 11px;
    color: var(--color-error);
    display: none;
    font-weight: 500;
}

.form-error-message {
    padding: 10px 12px;
    background-color: var(--color-error-bg);
    border: var(--border-width) solid var(--color-error);
    border-radius: var(--border-radius);
    color: var(--color-error);
    font-size: 12px;
    font-weight: 600;
    display: none;
    text-align: center;
}

.duplicate-warning {
    padding: 12px 14px;
    background-color: #fffbeb;
    border: var(--border-width) solid #fbbf24;
    border-radius: var(--border-radius);
    color: #92400e;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    margin: 10px 0;
    line-height: 1.5;
}

.duplicate-warning p {
    margin: 0;
}

.duplicate-warning strong {
    font-weight: 700;
    color: #d97706;
}

.success-message {
    padding: 10px 12px;
    background-color: var(--color-success-bg);
    border: var(--border-width) solid var(--color-success);
    border-radius: var(--border-radius);
    color: var(--color-success);
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    display: none;
    animation: slideDown var(--transition-normal);
}

/* ============================================
   MODAL DE LOADING
   ============================================ */
.modal-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* ============================================
   ICONO DE CARGA EN HEADER
   ============================================ */
.header-loading-icon {
    background-color: transparent;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-fast);
    margin-right: 15px;
}

.header-loading-icon:hover {
    color: var(--color-primary-dark);
    transform: scale(1.1);
}

.header-loading-icon svg {
    animation: spin 2s linear infinite;
}

.loading-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--color-success);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
}

/* ============================================
   PANEL FLOTANTE DE PROGRESO
   ============================================ */
.progress-panel {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    background-color: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 320px;
    max-width: 90vw;
    animation: slideUpIn var(--transition-normal);
}

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

.progress-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: var(--border-width) solid var(--color-border);
}

.progress-panel-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.progress-panel-close {
    background-color: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: 18px;
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-panel-close:hover {
    color: var(--color-text);
}

.progress-panel-body {
    padding: 15px;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 4px;
}

.progress-text {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin: 0;
    font-weight: 600;
    text-align: center;
}

#loadingText {
    color: var(--color-text);
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.registration-form .checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.registration-form .checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 12px;
    color: var(--color-text);
    font-weight: 500;
    cursor: pointer;
    user-select: none;
    line-height: 1.4;
}

.registration-form input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.form-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.btn {
    padding: 10px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.3px;
    cursor: pointer;
    text-transform: uppercase;
    outline: none;
    transition: all var(--transition-normal);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-button-text);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-button-hover);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    background-color: var(--color-button-active);
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--color-background);
    color: var(--color-text);
    border: var(--border-width) solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-border);
    border-color: var(--color-text-secondary);
}

.btn-secondary:active:not(:disabled) {
    transform: translateY(1px);
}

.card-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: var(--border-width) solid var(--color-border);
}

.card-footer p {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin: 0;
}

.card-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.card-footer a:hover {
    color: var(--color-button-hover);
    text-decoration: underline;
}

.registration-footer {
    text-align: center;
    padding: var(--spacing-lg);
    border-top: var(--border-width) solid var(--color-border);
    background-color: var(--color-surface);
    font-size: 11px;
    color: var(--color-text-secondary);
}

/* ============================================
   RESPONSIVE - REGISTRATION
   ============================================ */
@media (max-width: 768px) {
    .registration-header {
        padding: 18px var(--spacing-md);
    }
    
    .registration-title {
        font-size: 22px;
    }
    
    .registration-subtitle {
        font-size: 13px;
    }
    
    .registration-main {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .registration-card {
        max-width: 100%;
        padding: var(--spacing-lg);
    }
    
    .card-header h2 {
        font-size: 16px;
    }
    
    .card-header p {
        font-size: 12px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .form-section {
        padding: var(--spacing-md);
        margin: 0;
    }
    
    .section-legend {
        font-size: 11px;
        margin-bottom: var(--spacing-md);
    }
    
    .form-actions {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .registration-header {
        padding: 16px var(--spacing-sm);
    }
    
    .registration-title {
        font-size: 18px;
    }
    
    .registration-subtitle {
        font-size: 12px;
    }
    
    .registration-main {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .registration-card {
        padding: var(--spacing-md);
        border-radius: calc(var(--border-radius) - 2px);
    }
    
    .card-header {
        margin-bottom: var(--spacing-lg);
    }
    
    .card-header h2 {
        font-size: 14px;
    }
    
    .card-header p {
        font-size: 11px;
    }
    
    .registration-form {
        gap: var(--spacing-md);
    }
    
    .form-section {
        padding: var(--spacing-sm);
    }
    
    .section-legend {
        font-size: 10px;
        margin-bottom: var(--spacing-sm);
    }
    
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    .registration-form label {
        font-size: 10px;
    }
    
    .registration-form input,
    .registration-form select,
    .registration-form textarea {
        font-size: 12px;
        padding: 8px;
    }
    
    .registration-form textarea {
        min-height: 70px;
    }
    
    .registration-form .checkbox-label {
        font-size: 11px;
    }
    
    .form-actions {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 11px;
        width: 100%;
    }
    
    .card-footer {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }
    
    .card-footer p {
        font-size: 11px;
    }
    
    .registration-footer {
        padding: var(--spacing-md);
        font-size: 10px;
    }
}