/* Variables y reset básico */
:root {
    --primary-color: #8b5cf6;
    --secondary-color: #a78bfa;
    --accent-color: #c084fc;
    --background-color: #0f0f23;
    --surface-color: #1a1a2e;
    --card-color: #16213e;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 16px;
    --spacing: 1.5rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Contenedor principal */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    background: linear-gradient(135deg, var(--surface-color) 0%, rgba(26, 26, 62, 0.9) 100%);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.header-nav {
    display: flex;
    gap: 1.5rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
    backdrop-filter: blur(5px);
}

.nav-btn:hover {
    background: var(--card-color);
    color: var(--text-primary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.user-profile {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.brain-activity, .neural-connections {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 50px;
    font-size: 0.9rem;
}

.brain-activity i, .neural-connections i {
    color: var(--primary-color);
}

/* Contenido principal */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.view {
    display: none;
    animation: fadeIn 0.5s ease;
}

.view.active {
    display: block;
}

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

/* Visualización Container */
.visualization-container {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.neural-canvas {
    flex: 1;
    background: var(--card-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    min-height: 500px;
}

.visualization-controls {
    width: 320px;
    background: var(--surface-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.control-panel {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

#visual-mode, #cognitive-focus, #intensity {
    width: 100%;
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-color);
    color: var(--text-primary);
    font-size: 0.95rem;
}

#visual-mode {
    padding: 0.75rem 1rem;
}

.region-toggles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.region-toggles label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.region-toggles input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: auto;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

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

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

.btn.accent {
    background: linear-gradient(135deg, var(--accent-color), #d946ef);
    color: white;
}

.btn.accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(192, 132, 252, 0.4);
}

.btn.small {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* Visualización Stats */
.visualization-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--surface-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-bar {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.stat-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
    transition: width 1s ease;
}

/* Analysis View */
.analysis-container {
    background: var(--surface-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.analysis-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.pattern-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.pattern-card {
    background: var(--card-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.pattern-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.pattern-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.pattern-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.pattern-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.pattern-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.pattern-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.trend-chart {
    background: var(--card-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-top: 2rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
}

.comparison-table th {
    background: var(--card-color);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
}

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

.comparison-table tr:hover {
    background: rgba(139, 92, 246, 0.05);
}

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

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

/* Recommendations View */
.recommendations-container {
    background: var(--surface-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.recommendation-types {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.rec-type-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.rec-type-btn:hover {
    background: var(--card-color);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.rec-type-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
}

.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.recommendation-card {
    background: var(--card-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.recommendation-card.priority-high {
    border-left: 4px solid var(--success-color);
}

.recommendation-card.priority-medium {
    border-left: 4px solid var(--warning-color);
}

.recommendation-card.priority-low {
    border-left: 4px solid var(--text-secondary);
}

.recommendation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.rec-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1.5rem;
}

.rec-header i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.rec-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.rec-time {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.rec-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.rec-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Settings View */
.settings-container {
    background: var(--surface-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.settings-section {
    margin-bottom: 2.5rem;
}

.settings-section h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.setting-item label {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.setting-item select, .setting-item input[type="range"] {
    width: 200px;
    padding: 0.5rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--card-color);
    color: var(--text-primary);
}

/* Toggle Switch Styles */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    vertical-align: middle;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition);
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Footer */
.app-footer {
    background: var(--surface-color);
    padding: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section p, .footer-section ul {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    font-size: 1.5rem;
}

.social-links i {
    color: var(--text-secondary);
    transition: var(--transition);
    cursor: pointer;
}

.social-links i:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-version {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .visualization-container {
        flex-direction: column;
    }
    
    .visualization-controls {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .header-nav {
        margin: 1rem 0;
        justify-content: center;
        gap: 1rem;
    }
    
    .user-profile {
        justify-content: center;
        gap: 1rem;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .pattern-grid {
        grid-template-columns: 1fr;
    }
    
    .recommendations-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th, .comparison-table td {
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .app-header {
        padding: 1rem;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .logo i {
        font-size: 1.75rem;
    }
    
    .nav-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .main-content {
        padding: 0.5rem;
    }
    
    .visualization-stats {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Notification Styles */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 300px;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}