:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #9b59b6;
    --bg-color: #ecf0f1;
    --card-bg: #ffffff;
    --text-color: #2c3e50;
    --border-color: #bdc3c7;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* Tabs Navigation */
.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    background: var(--card-bg);
    padding: 15px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.tab-btn {
    flex: 1;
    min-width: 120px;
    padding: 12px 20px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
}

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

.tab-btn.active {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

/* Tab Content */
.tab-content {
    display: none;
}

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

/* Canvas Wrapper */
.canvas-wrapper {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

canvas {
    width: 100%;
    height: auto;
    display: block;
}

/* Framework Container */
.framework-container,
.wellbeing-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.controls-panel {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.controls-panel h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.control-group {
    margin-bottom: 20px;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.95rem;
}

.value-display {
    background: var(--secondary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 700;
    min-width: 50px;
    text-align: center;
}

input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--bg-color);
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--secondary-color);
    cursor: pointer;
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--primary-color);
    transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--secondary-color);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Scenario Buttons */
.scenario-buttons {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

.scenario-buttons h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.scenario-btn {
    display: block;
    width: 100%;
    padding: 12px 20px;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--secondary-color), var(--info-color));
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.scenario-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Score Display */
.score-display {
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(135deg, var(--success-color), var(--info-color));
    color: white;
    border-radius: 12px;
    text-align: center;
}

.score-display h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.score-value {
    font-size: 3rem;
    font-weight: 700;
}

/* Framework Description */
.framework-description {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.framework-description h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.framework-description p {
    line-height: 1.8;
    color: var(--text-color);
}

/* Timeline */
.timeline-container {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.era-info {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    min-height: 200px;
}

.era-info h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.era-info p {
    line-height: 1.8;
    color: var(--text-color);
}

/* Demographics */
.demographics-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chart-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

.chart-wrapper {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.chart-wrapper h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.prediction-panel {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.prediction-panel h4 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.prediction-results {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-color);
    border-radius: 8px;
}

.prediction-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.prediction-label {
    font-weight: 600;
    color: var(--primary-color);
}

.prediction-value {
    color: var(--secondary-color);
    font-weight: 700;
}

/* Well-being */
.wellbeing-controls {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.wellbeing-controls h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.dimension-list {
    margin-bottom: 25px;
}

.dimension-item {
    display: grid;
    grid-template-columns: 1fr 2fr 60px;
    gap: 15px;
    align-items: center;
    margin-bottom: 15px;
    padding: 15px;
    background: var(--bg-color);
    border-radius: 8px;
}

.bar-container {
    height: 24px;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--info-color));
    border-radius: 12px;
    transition: width 0.5s ease;
}

.dimension-value {
    text-align: center;
    font-weight: 700;
    color: var(--secondary-color);
}

.maslow-comparison {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

.maslow-comparison h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

/* Explorer */
.explorer-container {
    padding: 20px 0;
}

.s-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.s-card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 25px;
    transition: var(--transition);
    cursor: pointer;
}

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

.s-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 15px;
}

.s-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
    text-align: center;
}

.s-card > p {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 15px;
    line-height: 1.6;
}

.expand-btn {
    display: block;
    width: 100%;
    padding: 10px 20px;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

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

.s-details {
    display: none;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

.s-card.expanded .s-details {
    display: block;
}

.s-details h4 {
    color: var(--primary-color);
    margin-top: 15px;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.s-details h4:first-child {
    margin-top: 0;
}

.s-details ul {
    list-style-position: inside;
    margin-bottom: 15px;
}

.s-details li {
    padding: 5px 0;
    color: var(--text-color);
}

.s-details p {
    color: var(--text-color);
    line-height: 1.6;
}

/* Comparison */
.comparison-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.values-evolution {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.values-evolution h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* Education */
.education-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.education-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.education-section h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.education-section p {
    line-height: 1.8;
    color: var(--text-color);
}

.case-studies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.case-card {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.case-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.case-card p {
    line-height: 1.6;
    color: var(--text-color);
}

/* Footer */
footer {
    margin-top: 40px;
    padding: 20px;
    text-align: center;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

footer p {
    color: var(--text-color);
    margin-bottom: 5px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .framework-container,
    .wellbeing-container {
        grid-template-columns: 1fr;
    }

    .chart-row {
        grid-template-columns: 1fr;
    }

    .dimension-item {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-btn {
        min-width: 100%;
    }

    .s-grid {
        grid-template-columns: 1fr;
    }

    .case-studies {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }

    .controls-panel,
    .education-section {
        padding: 20px;
    }

    .score-value {
        font-size: 2.5rem;
    }
}

/* Loading State */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    color: var(--text-color);
    font-size: 1.1rem;
}

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

.tab-content.active {
    animation: fadeIn 0.3s ease;
}

/* Accessibility */
.tab-btn:focus,
.scenario-btn:focus,
.expand-btn:focus,
input[type="range"]:focus {
    outline: 3px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .tabs,
    .controls-panel,
    footer {
        display: none;
    }

    .tab-content {
        display: block !important;
    }

    canvas {
        max-width: 100%;
        page-break-inside: avoid;
    }
}