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

:root {
    --primary-color: #e91e63;
    --secondary-color: #2196f3;
    --accent-color: #ff9800;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --text-primary: #333;
    --text-secondary: #666;
    --bg-light: #f5f5f5;
    --border-color: #ddd;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, var(--primary-color), #ff5722);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

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

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

/* Tabs */
.tabs {
    display: flex;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    flex: 1;
    min-width: 120px;
    padding: 16px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    position: relative;
}

.tab-btn:hover {
    background: rgba(233, 30, 99, 0.1);
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
}

/* Tab Content */
.tab-content {
    display: none;
    padding: 30px;
    animation: fadeIn 0.3s ease;
}

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

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

.view-header {
    margin-bottom: 30px;
    text-align: center;
}

.view-header h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.view-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Canvas */
.canvas-container {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.canvas-container.large {
    padding: 30px;
}

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

/* Controls */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 8px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.control-group input[type="range"] {
    width: 150px;
}

.control-group select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: white;
    font-size: 1rem;
    cursor: pointer;
}

/* Stats Panel */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--danger-color);
    margin-bottom: 5px;
}

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

.stat-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    padding: 25px;
    border-radius: 12px;
    margin-top: 30px;
    border-left: 4px solid var(--secondary-color);
}

.info-box h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.info-box ul {
    list-style: none;
}

.info-box li {
    margin-bottom: 15px;
    line-height: 1.8;
}

.info-box strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Country Data Table */
.country-data {
    overflow-x: auto;
    margin-top: 30px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

tr:hover {
    background: var(--bg-light);
}

/* Timeline Controls */
.timeline-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    justify-content: center;
    margin: 30px 0;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 8px;
}

.btn-primary, .btn-secondary {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #d81b60;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.speed-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Case Analysis */
.case-intro {
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 30px;
    border-left: 4px solid var(--accent-color);
}

.case-intro h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.simulation-info {
    background: var(--bg-light);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.milestone h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.milestone p {
    font-size: 1.1rem;
    line-height: 1.8;
}

.case-analysis {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.analysis-item {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

.analysis-item ul {
    list-style: none;
}

.analysis-item li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.6;
}

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

/* Solution Cards */
.solution-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.solution-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--success-color);
    transition: transform 0.2s ease;
}

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

.solution-card h3 {
    color: var(--success-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.policy-list {
    margin-bottom: 20px;
}

.policy-list p {
    margin-bottom: 12px;
    line-height: 1.6;
}

.policy-list strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 5px;
}

.impact {
    padding-top: 15px;
    border-top: 2px solid var(--border-color);
}

.impact strong {
    color: var(--success-color);
    font-weight: 600;
}

/* Calculator */
.calculator-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    padding: 25px;
    background: var(--bg-light);
    border-radius: 12px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.input-group input,
.input-group select {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    background: white;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
}

.currency {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-left: 5px;
}

.calculator-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.result-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.result-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.result-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.result-explanation {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #f3e5f5, #e1bee7);
    padding: 25px;
    border-radius: 12px;
    margin-top: 20px;
}

.result-explanation h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.result-explanation p {
    line-height: 1.8;
    color: var(--text-primary);
}

/* Footer */
footer {
    background: var(--bg-light);
    padding: 20px 30px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 1.8rem;
    }

    header .subtitle {
        font-size: 1rem;
    }

    .tabs {
        flex-wrap: nowrap;
    }

    .tab-btn {
        min-width: 100px;
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    .tab-content {
        padding: 20px;
    }

    .view-header h2 {
        font-size: 1.5rem;
    }

    .stats-panel {
        grid-template-columns: 1fr;
    }

    .controls {
        flex-direction: column;
    }

    .control-group {
        width: 100%;
    }

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

    .solution-cards {
        grid-template-columns: 1fr;
    }

    .calculator-inputs {
        grid-template-columns: 1fr;
    }

    .calculator-results {
        grid-template-columns: 1fr;
    }

    .timeline-controls {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    header {
        padding: 30px 20px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .tab-btn {
        min-width: 80px;
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}