/**
 * Estilos para el Frontend del Fitness Manager
 * Versión: 1.0.0
 */

/* Variables CSS */
:root {
    --fm-primary: #007cba;
    --fm-primary-dark: #005a87;
    --fm-secondary: #32373c;
    --fm-success: #46b450;
    --fm-warning: #ffb900;
    --fm-error: #dc3232;
    --fm-light-gray: #f8f9fa;
    --fm-medium-gray: #e9ecef;
    --fm-dark-gray: #6c757d;
    --fm-border-radius: 8px;
    --fm-box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --fm-transition: all 0.3s ease;
}

/* Contenedor principal del shortcode */
.fitness-manager-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--fm-secondary);
}

/* Mensaje de bienvenida */
.fitness-welcome {
    background: linear-gradient(135deg, var(--fm-primary), var(--fm-primary-dark));
    color: white;
    padding: 30px;
    border-radius: var(--fm-border-radius);
    margin-bottom: 30px;
    text-align: center;
    box-shadow: var(--fm-box-shadow);
}

.fitness-welcome h2 {
    margin: 0 0 10px 0;
    font-size: 28px;
    font-weight: 600;
}

.fitness-welcome p {
    margin: 0;
    font-size: 16px;
    opacity: 0.9;
}

/* Sistema de pestañas */
.fitness-tabs {
    display: flex;
    background: white;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    margin-bottom: 20px;
    overflow: hidden;
}

.fitness-tab {
    flex: 1;
    padding: 15px 20px;
    background: var(--fm-light-gray);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--fm-dark-gray);
    transition: var(--fm-transition);
    position: relative;
}

.fitness-tab:hover {
    background: var(--fm-medium-gray);
    color: var(--fm-secondary);
}

.fitness-tab.active {
    background: var(--fm-primary);
    color: white;
}

.fitness-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
}

/* Contenido de pestañas */
.fitness-tab-content {
    display: none;
    background: white;
    padding: 30px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    margin-bottom: 20px;
}

.fitness-tab-content.active {
    display: block;
}

/* Tarjetas de estadísticas */
.fitness-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.fitness-stat-card {
    background: white;
    padding: 25px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    text-align: center;
    transition: var(--fm-transition);
    border-left: 4px solid var(--fm-primary);
}

.fitness-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.fitness-stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--fm-primary);
    margin: 0;
    line-height: 1;
}

.fitness-stat-label {
    font-size: 14px;
    color: var(--fm-dark-gray);
    margin: 10px 0 0 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Formularios */
.fitness-form {
    background: white;
    padding: 30px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    margin-bottom: 20px;
}

.fitness-form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.fitness-form-group {
    margin-bottom: 20px;
}

.fitness-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--fm-secondary);
}

.fitness-form-group input,
.fitness-form-group select,
.fitness-form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--fm-medium-gray);
    border-radius: var(--fm-border-radius);
    font-size: 14px;
    transition: var(--fm-transition);
}

.fitness-form-group input:focus,
.fitness-form-group select:focus,
.fitness-form-group textarea:focus {
    outline: none;
    border-color: var(--fm-primary);
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.fitness-form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Botones */
.fitness-btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--fm-primary);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: var(--fm-border-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--fm-transition);
    text-align: center;
}

.fitness-btn:hover {
    background: var(--fm-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 124, 186, 0.3);
}

.fitness-btn:active {
    transform: translateY(0);
}

.fitness-btn.secondary {
    background: var(--fm-dark-gray);
}

.fitness-btn.secondary:hover {
    background: var(--fm-secondary);
}

.fitness-btn.success {
    background: var(--fm-success);
}

.fitness-btn.warning {
    background: var(--fm-warning);
}

.fitness-btn.error {
    background: var(--fm-error);
}

.fitness-btn.small {
    padding: 8px 16px;
    font-size: 13px;
}

.fitness-btn.large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Gráficos */
.fitness-chart-container {
    background: white;
    padding: 30px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    margin-bottom: 20px;
}

.fitness-chart-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--fm-secondary);
    text-align: center;
}

.fitness-chart-wrapper {
    position: relative;
    height: 400px;
}

/* Perfil de usuario */
.fitness-profile {
    background: white;
    padding: 30px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    margin-bottom: 20px;
}

.fitness-profile-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--fm-light-gray);
}

.fitness-profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-right: 20px;
    object-fit: cover;
    border: 4px solid var(--fm-primary);
}

.fitness-profile-info h3 {
    margin: 0 0 5px 0;
    font-size: 24px;
    color: var(--fm-secondary);
}

.fitness-profile-info p {
    margin: 0;
    color: var(--fm-dark-gray);
}

/* Rutinas */
.fitness-routines {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.fitness-routine-card {
    background: white;
    padding: 25px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    transition: var(--fm-transition);
}

.fitness-routine-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.fitness-routine-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 15px 0;
    color: var(--fm-secondary);
}

.fitness-routine-description {
    color: var(--fm-dark-gray);
    margin-bottom: 20px;
    line-height: 1.5;
}

.fitness-routine-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--fm-dark-gray);
    margin-bottom: 15px;
}

.fitness-routine-exercises {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fitness-routine-exercises li {
    padding: 8px 0;
    border-bottom: 1px solid var(--fm-light-gray);
}

.fitness-routine-exercises li:last-child {
    border-bottom: none;
}

/* Historial de entrenamientos */
.fitness-training-history {
    background: white;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    overflow: hidden;
}

.fitness-training-table {
    width: 100%;
    border-collapse: collapse;
}

.fitness-training-table th,
.fitness-training-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--fm-light-gray);
}

.fitness-training-table th {
    background: var(--fm-light-gray);
    font-weight: 600;
    color: var(--fm-secondary);
}

.fitness-training-table tbody tr:hover {
    background: var(--fm-light-gray);
}

/* Alertas y mensajes */
.fitness-alert {
    padding: 15px 20px;
    border-radius: var(--fm-border-radius);
    margin-bottom: 20px;
    border-left: 4px solid;
}

.fitness-alert.success {
    background: rgba(70, 180, 80, 0.1);
    border-color: var(--fm-success);
    color: #2d5016;
}

.fitness-alert.warning {
    background: rgba(255, 185, 0, 0.1);
    border-color: var(--fm-warning);
    color: #8f5d00;
}

.fitness-alert.error {
    background: rgba(220, 50, 50, 0.1);
    border-color: var(--fm-error);
    color: #8b1538;
}

.fitness-alert.info {
    background: rgba(0, 124, 186, 0.1);
    border-color: var(--fm-primary);
    color: #0d4f70;
}

/* Loading spinner */
.fitness-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--fm-light-gray);
    border-radius: 50%;
    border-top-color: var(--fm-primary);
    animation: fitness-spin 1s ease-in-out infinite;
}

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

/* Modal */
.fitness-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.fitness-modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: var(--fm-border-radius);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.fitness-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: var(--fm-dark-gray);
}

.fitness-modal-close:hover {
    color: var(--fm-secondary);
}

/* Login/Registro */
.fitness-login-form {
    max-width: 400px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: var(--fm-border-radius);
    box-shadow: var(--fm-box-shadow);
    text-align: center;
}

.fitness-login-form h3 {
    margin-bottom: 30px;
    color: var(--fm-secondary);
}

.fitness-login-form .fitness-form-group {
    text-align: left;
}

/* Responsive Design */
@media (max-width: 768px) {
    .fitness-manager-container {
        padding: 15px;
    }
    
    .fitness-tabs {
        flex-direction: column;
    }
    
    .fitness-tab {
        text-align: center;
    }
    
    .fitness-tab.active::after {
        display: none;
    }
    
    .fitness-stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .fitness-form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .fitness-profile-header {
        flex-direction: column;
        text-align: center;
    }
    
    .fitness-profile-avatar {
        margin: 0 0 15px 0;
    }
    
    .fitness-routines {
        grid-template-columns: 1fr;
    }
    
    .fitness-training-table {
        font-size: 14px;
    }
    
    .fitness-training-table th,
    .fitness-training-table td {
        padding: 10px 8px;
    }
    
    .fitness-modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 20px;
    }
    
    .fitness-chart-wrapper {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .fitness-welcome {
        padding: 20px;
    }
    
    .fitness-welcome h2 {
        font-size: 24px;
    }
    
    .fitness-tab-content {
        padding: 20px;
    }
    
    .fitness-form {
        padding: 20px;
    }
    
    .fitness-stat-card {
        padding: 20px;
    }
    
    .fitness-stat-value {
        font-size: 28px;
    }
    
    .fitness-chart-wrapper {
        height: 250px;
    }
}

/* Utilidades */
.fitness-text-center {
    text-align: center;
}

.fitness-text-left {
    text-align: left;
}

.fitness-text-right {
    text-align: right;
}

.fitness-mt-20 {
    margin-top: 20px;
}

.fitness-mb-20 {
    margin-bottom: 20px;
}

.fitness-hidden {
    display: none;
}

.fitness-flex {
    display: flex;
}

.fitness-justify-between {
    justify-content: space-between;
}

.fitness-align-center {
    align-items: center;
}

.fitness-gap-10 {
    gap: 10px;
}

.fitness-gap-20 {
    gap: 20px;
}

/* Animaciones de entrada */
@keyframes fitness-fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fitness-fade-in {
    animation: fitness-fade-in 0.5s ease-out;
}

/* Estilos específicos para [mi_cuenta_fitness] */
.fitness-account-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Encabezado del perfil mejorado */
.fitness-account-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 40px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.fitness-account-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.05"/><circle cx="50" cy="10" r="1" fill="white" opacity="0.03"/><circle cx="10" cy="90" r="1" fill="white" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.fitness-profile-photo {
    position: relative;
    text-align: center;
    z-index: 1;
}

.fitness-avatar-large {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 5px solid rgba(255,255,255,0.3);
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 25px;
}

.fitness-change-photo-btn {
    position: absolute;
    bottom: 35px;
    right: calc(50% - 65px + 15px);
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.fitness-change-photo-btn:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    transform: scale(1.1);
}

.fitness-profile-info {
    flex: 1;
    z-index: 1;
    position: relative;
}

.fitness-user-name {
    margin: 15px 0 10px;
    color: white;
    font-size: 2.5em;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.fitness-user-email {
    margin: 0 0 15px;
    color: rgba(255,255,255,0.9);
    font-size: 1.1em;
    font-weight: 300;
}

.fitness-member-since {
    margin: 0 0 10px;
    color: rgba(255,255,255,0.9);
    font-size: 1.2em;
    font-weight: 300;
}

.fitness-user-phone {
    margin: 0;
    color: rgba(255,255,255,0.9);
    font-size: 1em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Estadísticas rápidas - 4 cards en línea horizontal */
.fitness-quick-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.fitness-stat-card {
    background: white;
    padding: 30px 20px;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.fitness-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--fm-primary), #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.fitness-stat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.fitness-stat-card:hover::before {
    transform: scaleX(1);
}

.fitness-stat-icon {
    font-size: 3em;
    line-height: 1;
    margin-bottom: 15px;
    display: block;
    filter: grayscale(0.2);
}

.fitness-stat-content h3 {
    margin: 15px 0 10px;
    font-size: 3.2em;
    font-weight: 800;
    color: var(--fm-secondary);
    line-height: 1;
}

.fitness-stat-content p {
    margin: 0;
    color: #6c757d;
    font-size: 1em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Secciones de la cuenta mejoradas */
.fitness-account-section {
    background: white;
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid rgba(0,0,0,0.05);
    margin-bottom: 40px;
    transition: transform 0.3s ease;
}

.fitness-account-section:hover {
    transform: translateY(-3px);
}

.fitness-account-section h2 {
    margin: 0 0 25px 0;
    color: var(--fm-secondary);
    font-size: 1.6em;
    font-weight: 700;
    border-bottom: 3px solid #667eea;
    padding-bottom: 15px;
    position: relative;
}

.fitness-account-section h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 50px;
    height: 3px;
    background: #764ba2;
}

/* Grid de información mejorado */
.fitness-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.fitness-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
    border-bottom: 1px solid #f1f3f4;
    transition: background-color 0.2s ease;
}

.fitness-info-item:hover {
    background-color: #f8f9fa;
    margin: 0 -35px;
    padding: 18px 35px;
    border-radius: 12px;
}

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

.fitness-info-item label {
    font-weight: 600;
    color: #495057;
    font-size: 1em;
    flex: 1;
}

.fitness-info-item span {
    color: var(--fm-secondary);
    font-size: 1em;
    font-weight: 500;
    flex: 1;
    text-align: right;
}

/* Grid físico */
.fitness-physical-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.fitness-physical-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--fm-light-gray);
    border-radius: var(--fm-border-radius);
    transition: var(--fm-transition);
}

.fitness-physical-card:hover {
    background: var(--fm-medium-gray);
}

.fitness-physical-icon {
    font-size: 36px;
    line-height: 1;
}

.fitness-physical-content h3 {
    margin: 0 0 5px 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--fm-primary);
}

.fitness-physical-content p {
    margin: 0 0 5px 0;
    color: var(--fm-dark-gray);
    font-size: 14px;
}

.fitness-physical-content small {
    font-size: 12px;
    color: var(--fm-dark-gray);
}

.fitness-change.positive {
    color: var(--fm-success);
}

.fitness-change.negative {
    color: var(--fm-error);
}

.fitness-bmi-category {
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 12px;
    background: var(--fm-primary);
    color: white;
}

.fitness-goal-progress {
    font-weight: 500;
    color: var(--fm-primary);
}

/* Información médica */
.fitness-medical-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.fitness-medical-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fitness-medical-item label {
    font-weight: 600;
    color: var(--fm-secondary);
}

.fitness-medical-content {
    padding: 15px;
    background: var(--fm-light-gray);
    border-radius: var(--fm-border-radius);
    border-left: 4px solid var(--fm-warning);
    line-height: 1.5;
}

/* Actividad reciente */
.fitness-activity-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fitness-activity-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid var(--fm-light-gray);
}

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

.fitness-activity-icon {
    font-size: 24px;
    line-height: 1;
}

.fitness-activity-content {
    flex: 1;
}

.fitness-activity-description {
    margin: 0 0 5px 0;
    color: var(--fm-secondary);
    font-weight: 500;
}

.fitness-activity-date {
    color: var(--fm-dark-gray);
    font-size: 12px;
}

.fitness-no-activity {
    text-align: center;
    color: var(--fm-dark-gray);
    font-style: italic;
    padding: 40px 20px;
}

/* Acciones de la cuenta */
.fitness-account-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

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

.fitness-btn-secondary {
    background: var(--fm-dark-gray);
    color: white;
}

.fitness-btn-outline {
    background: transparent;
    color: var(--fm-primary);
    border: 2px solid var(--fm-primary);
}

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

/* Modal de foto */
#fitness-photo-modal .fitness-modal-content {
    max-width: 500px;
}

.fitness-form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Responsive Design Mejorado para [mi_cuenta_fitness] */
@media (max-width: 1024px) {
    .fitness-quick-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .fitness-account-container {
        padding: 15px;
    }
    
    .fitness-account-header {
        padding: 30px 20px;
        margin-bottom: 30px;
    }
    
    .fitness-user-name {
        font-size: 2em;
    }
    
    .fitness-quick-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        margin-bottom: 30px;
    }
    
    .fitness-stat-card {
        padding: 25px 15px;
    }
    
    .fitness-stat-content h3 {
        font-size: 2.5em;
    }
    
    .fitness-stat-icon {
        font-size: 2.5em;
    }
    
    .fitness-info-grid {
        grid-template-columns: 1fr;
    }
    
    .fitness-account-section {
        padding: 25px;
    }
    
    .fitness-info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 15px 0;
    }
    
    .fitness-info-item span {
        text-align: left;
        font-weight: 600;
        color: #667eea;
    }
    
    .fitness-physical-grid {
        grid-template-columns: 1fr;
    }
    
    .fitness-physical-card {
        flex-direction: column;
        text-align: center;
    }
    
    .fitness-account-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .fitness-account-actions .fitness-btn {
        width: 100%;
        max-width: 300px;
        margin: 8px 0;
    }
    
    .fitness-change-photo-btn {
        right: calc(50% - 65px + 10px);
        width: 40px;
        height: 40px;
        bottom: 30px;
    }
}

@media (max-width: 480px) {
    .fitness-account-container {
        padding: 15px;
    }
    
    .fitness-quick-stats {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .fitness-avatar-large {
        width: 100px;
        height: 100px;
    }
    
    .fitness-user-name {
        font-size: 1.8em;
    }
    
    .fitness-stat-card {
        padding: 20px 10px;
    }
    
    .fitness-stat-content h3 {
        font-size: 2em;
    }
    
    .fitness-stat-icon {
        font-size: 2em;
    }
    
    .fitness-stat-content p {
        font-size: 0.85em;
    }
    
    .fitness-account-section {
        padding: 20px;
    }
    
    .fitness-account-actions .fitness-btn {
        width: 100%;
        margin: 10px 0;
    }
    
    .fitness-change-photo-btn {
        right: calc(50% - 50px + 8px);
        width: 35px;
        height: 35px;
        bottom: 25px;
        font-size: 14px;
    }
}

@media (max-width: 360px) {
    .fitness-quick-stats {
        grid-template-columns: 1fr;
    }
}

/* Estilos adicionales para mejor UX */
.fitness-account-container {
    background: #f8f9fa;
}

/* Animaciones mejoradas */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fitness-stat-card {
    animation: fadeInUp 0.6s ease-out;
}

.fitness-stat-card:nth-child(2) {
    animation-delay: 0.1s;
}

.fitness-stat-card:nth-child(3) {
    animation-delay: 0.2s;
}

.fitness-stat-card:nth-child(4) {
    animation-delay: 0.3s;
}

.fitness-account-section {
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

/* Mejoras en botones de acción */
.fitness-account-actions .fitness-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    margin: 0 10px;
    font-weight: 600;
    font-size: 1em;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fitness-account-actions .fitness-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.fitness-account-actions .fitness-btn.secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.fitness-account-actions .fitness-btn.secondary:hover {
    box-shadow: 0 10px 25px rgba(245, 87, 108, 0.4);
}

.fitness-account-actions .fitness-btn.tertiary {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.fitness-account-actions .fitness-btn.tertiary:hover {
    box-shadow: 0 10px 25px rgba(67, 233, 123, 0.4);
}

/* Estilos para el sistema QR personalizado */
.fitness-user-qr-container {
    max-width: 500px;
    margin: 40px auto;
    padding: 0;
}

.fitness-qr-card {
    background: white;
    border-radius: 25px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.fitness-qr-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.02) 0%, rgba(118, 75, 162, 0.02) 100%);
    pointer-events: none;
}

.fitness-qr-header {
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.fitness-qr-header h3 {
    font-size: 1.8em;
    font-weight: 700;
    color: #2c3e50;
    margin: 0 0 10px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.fitness-qr-header p {
    font-size: 1.1em;
    color: #6c757d;
    margin: 0;
    font-weight: 500;
}

.fitness-qr-image-wrapper {
    position: relative;
    display: inline-block;
    margin: 20px 0;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    background: white;
    padding: 20px;
}

.fitness-qr-image {
    width: 300px;
    height: 300px;
    border-radius: 15px;
    display: block;
}

.fitness-qr-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.fitness-logo-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    border: 4px solid white;
}

.fitness-logo-text {
    color: white;
    font-weight: 800;
    font-size: 0.7em;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.fitness-qr-info {
    margin: 30px 0;
    position: relative;
    z-index: 1;
}

.fitness-qr-info p {
    margin: 15px 0;
    font-size: 1em;
}

.fitness-qr-info strong {
    color: #2c3e50;
    font-weight: 600;
}

.fitness-qr-instructions {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    padding: 20px;
    border-radius: 15px;
    border-left: 4px solid #667eea;
    margin: 20px 0;
    font-style: italic;
    color: #495057;
    line-height: 1.6;
}

.fitness-qr-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
    position: relative;
    z-index: 1;
}

.fitness-qr-actions .fitness-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9em;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fitness-qr-actions .fitness-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.fitness-qr-actions .fitness-btn.fitness-btn-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.fitness-qr-actions .fitness-btn.fitness-btn-secondary:hover {
    box-shadow: 0 10px 25px rgba(245, 87, 108, 0.4);
}

.fitness-qr-actions .fitness-btn.fitness-btn-tertiary {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.fitness-qr-actions .fitness-btn.fitness-btn-tertiary:hover {
    box-shadow: 0 10px 25px rgba(67, 233, 123, 0.4);
}

/* Página de escaneo QR */
.fitness-qr-scan-page {
    max-width: 600px;
    margin: 50px auto;
    padding: 40px;
    text-align: center;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    animation: fadeInUp 0.6s ease-out;
}

.fitness-qr-success h1 {
    color: #28a745;
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(40, 167, 69, 0.1);
}

.fitness-qr-error h1 {
    color: #dc3545;
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(220, 53, 69, 0.1);
}

.fitness-scan-details {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1) 0%, rgba(52, 201, 36, 0.1) 100%);
    padding: 25px;
    border-radius: 15px;
    margin: 25px 0;
    border-left: 4px solid #28a745;
}

.fitness-scan-details p {
    margin: 10px 0;
    font-size: 1.1em;
    color: #2c3e50;
}

/* Responsive para QR */
@media (max-width: 768px) {
    .fitness-user-qr-container {
        margin: 20px auto;
        padding: 0 15px;
    }
    
    .fitness-qr-card {
        padding: 30px 20px;
    }
    
    .fitness-qr-image {
        width: 250px;
        height: 250px;
    }
    
    .fitness-logo-circle {
        width: 70px;
        height: 70px;
    }
    
    .fitness-logo-text {
        font-size: 0.6em;
    }
    
    .fitness-qr-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .fitness-qr-actions .fitness-btn {
        width: 100%;
        max-width: 250px;
        margin: 5px 0;
    }
}

@media (max-width: 480px) {
    .fitness-qr-image {
        width: 200px;
        height: 200px;
    }
    
    .fitness-logo-circle {
        width: 60px;
        height: 60px;
    }
    
    .fitness-logo-text {
        font-size: 0.5em;
    }
    
    .fitness-qr-scan-page {
        margin: 20px auto;
        padding: 30px 20px;
    }
}

/* Estilos para la sección QR dentro de [mi_cuenta_fitness] */
.fitness-qr-section {
    text-align: center;
    padding: 20px 0;
}

.fitness-qr-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    padding: 25px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 15px;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.fitness-qr-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.fitness-qr-stat-number {
    font-size: 2em;
    font-weight: 800;
    color: #667eea;
    line-height: 1;
}

.fitness-qr-stat-label {
    font-size: 0.9em;
    color: #6c757d;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
}

/* Responsive para sección QR en cuenta */
@media (max-width: 768px) {
    .fitness-qr-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .fitness-qr-stat-number {
        font-size: 1.8em;
    }
}

/* Integración QR en el diseño general de la cuenta */
.fitness-account-section .fitness-user-qr-container {
    margin: 20px 0;
}

.fitness-account-section .fitness-qr-card {
    box-shadow: none;
    border: 1px solid #e9ecef;
    padding: 25px;
}

.fitness-account-section .fitness-qr-image {
    width: 200px;
    height: 200px;
}

.fitness-account-section .fitness-logo-circle {
    width: 50px;
    height: 50px;
}

.fitness-account-section .fitness-logo-text {
    font-size: 0.5em;
}
    
    .fitness-account-section {
        padding: 20px;
    }
    
    .fitness-user-name {
        font-size: 24px;
    }
    
    .fitness-stat-card {
        padding: 20px;
        flex-direction: column;
        text-align: center;
    }
    
    .fitness-stat-icon {
        font-size: 36px;
    }
    
    .fitness-physical-icon {
        font-size: 28px;
    }
}

/* Print styles */
@media print {
    .fitness-tabs,
    .fitness-btn,
    .fitness-modal,
    .fitness-change-photo-btn,
    .fitness-account-actions {
        display: none !important;
    }
    
    .fitness-tab-content {
        display: block !important;
    }
    
    .fitness-manager-container,
    .fitness-account-container {
        max-width: none;
        margin: 0;
        padding: 0;
    }
    
    .fitness-account-section {
        break-inside: avoid;
        margin-bottom: 20px;
    }
}