/* CSS Variables */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* App Container */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.header-content {
    max-width: 600px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Main Content */
.main-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    flex: 1;
    overflow: hidden;
}

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

.tab-btn {
    flex: 1;
    min-width: 100px;
    padding: 16px 12px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    white-space: nowrap;
}

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

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: var(--bg-primary);
}

.tab-icon {
    font-size: 1.25rem;
}

/* Tab Content */
.tab-content {
    padding: 30px;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Panel Header */
.panel-header {
    margin-bottom: 30px;
}

.panel-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.panel-header p {
    color: var(--text-secondary);
}

/* Quick Add Section */
.quick-add-section, .custom-add-section, .added-sources-section {
    margin-bottom: 30px;
}

.quick-add-section h3, .custom-add-section h3, .added-sources-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.quick-add-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 10px;
}

.quick-add-btn {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

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

.quick-add-btn.added {
    border-color: var(--secondary-color);
    background: #d1fae5;
    color: #065f46;
}

.service-icon {
    font-size: 1.25rem;
}

/* Form Styles */
.add-form {
    background: var(--bg-secondary);
    padding: 25px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

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

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

.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-danger:hover {
    background: #dc2626;
}

/* Sources List */
.sources-list {
    display: grid;
    gap: 12px;
}

.source-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.source-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.source-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.source-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.source-details h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.source-details p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.source-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.data-tag {
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: 9999px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.source-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
}

/* Category Overview */
.category-overview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.category-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.category-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.category-name {
    font-weight: 600;
    color: var(--text-primary);
}

.category-count {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.category-services {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Category Colors */
.category-social-media .category-icon { background: #fce7f3; }
.category-search-email .category-icon { background: #dbeafe; }
.category-shopping .category-icon { background: #fef3c7; }
.category-financial .category-icon { background: #d1fae5; }
.category-entertainment .category-icon { background: #ede9fe; }
.category-professional .category-icon { background: #e0e7ff; }
.category-messaging .category-icon { background: #cffafe; }
.category-transportation .category-icon { background: #fee2e2; }
.category-health .category-icon { background: #dcfce7; }
.category-gaming .category-icon { background: #fef9c3; }
.category-education .category-icon { background: #f3e8ff; }
.category-other .category-icon { background: #f3f4f6; }

/* Category Details */
.category-details {
    margin-top: 20px;
}

.category-detail-section {
    margin-bottom: 25px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border-color);
}

.category-detail-section h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.category-service-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.category-service-item {
    padding: 8px 14px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
}

/* Visualization Controls */
.viz-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.viz-btn {
    padding: 10px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

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

/* Visualization Container */
.visualization-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    min-height: 400px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.viz-panel {
    display: none;
    width: 100%;
    height: 400px;
}

.viz-panel.active {
    display: block;
}

.viz-panel canvas {
    width: 100% !important;
    height: 100% !important;
}

#treemap-container {
    width: 100%;
    height: 400px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-content: flex-start;
}

.treemap-item {
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
    color: white;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.treemap-item:hover {
    transform: scale(1.02);
    z-index: 1;
}

.treemap-item span {
    font-size: 0.75rem;
    opacity: 0.9;
}

/* Visualization Stats */
.viz-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Risk Assessment */
.risk-overview {
    text-align: center;
    margin-bottom: 30px;
}

.risk-meter {
    display: inline-block;
    padding: 30px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.risk-gauge {
    width: 250px;
    height: 125px;
    background: linear-gradient(90deg, #10b981 0%, #f59e0b 50%, #ef4444 100%);
    border-radius: 125px 125px 0 0;
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}

.risk-gauge::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 180px;
    height: 90px;
    background: var(--bg-secondary);
    border-radius: 90px 90px 0 0;
}

.risk-needle {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 6px;
    height: 90px;
    background: var(--text-primary);
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(-90deg);
    transition: transform 0.5s ease;
    z-index: 1;
    border-radius: 3px;
}

.risk-labels {
    position: absolute;
    bottom: 10px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 2;
}

.risk-low { color: #065f46; }
.risk-medium { color: #92400e; }
.risk-high { color: #991b1b; }

.risk-score-display {
    font-size: 2.5rem;
    font-weight: 700;
}

#risk-score-value {
    color: var(--primary-color);
}

.risk-score-label {
    color: var(--text-secondary);
    font-size: 1.5rem;
}

/* Risk Factors */
.risk-factors, .risk-breakdown {
    margin-bottom: 30px;
}

.risk-factors h3, .risk-breakdown h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.risk-factors-list {
    display: grid;
    gap: 12px;
}

.risk-factor-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.risk-factor-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.risk-factor-icon.low { background: #d1fae5; }
.risk-factor-icon.medium { background: #fef3c7; }
.risk-factor-icon.high { background: #fee2e2; }

.risk-factor-content {
    flex: 1;
}

.risk-factor-content h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.risk-factor-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.risk-factor-score {
    font-weight: 700;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.risk-factor-score.low { background: #d1fae5; color: #065f46; }
.risk-factor-score.medium { background: #fef3c7; color: #92400e; }
.risk-factor-score.high { background: #fee2e2; color: #991b1b; }

/* Risk Breakdown Chart */
.risk-breakdown-chart {
    display: grid;
    gap: 12px;
}

.risk-bar-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.risk-bar-label {
    width: 120px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.risk-bar-container {
    flex: 1;
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.risk-bar {
    height: 100%;
    border-radius: var(--radius-sm);
    transition: width 0.5s ease;
}

.risk-bar.low { background: linear-gradient(90deg, #10b981, #34d399); }
.risk-bar.medium { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.risk-bar.high { background: linear-gradient(90deg, #ef4444, #f87171); }

.risk-bar-value {
    width: 50px;
    text-align: right;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Privacy Tips */
.tips-section {
    margin-bottom: 30px;
}

.tips-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.tips-list {
    display: grid;
    gap: 15px;
}

.tip-card {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.tip-card.personalized {
    border-left: 4px solid var(--primary-color);
}

.tip-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tip-content h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.tip-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.resource-card {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.resource-card h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.resource-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 20px;
    margin-top: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.powered-by {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.powered-by a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.powered-by a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.disclaimer {
    font-size: 0.8125rem;
    color: var(--text-light);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-container {
        padding: 10px;
    }

    .header {
        padding: 20px;
    }

    .logo {
        flex-direction: column;
        gap: 10px;
    }

    .logo h1 {
        font-size: 1.375rem;
    }

    .tabs {
        justify-content: flex-start;
    }

    .tab-btn {
        min-width: 80px;
        padding: 12px 8px;
    }

    .tab-text {
        font-size: 0.75rem;
    }

    .tab-content {
        padding: 20px;
    }

    .quick-add-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .source-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .source-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .category-overview {
        grid-template-columns: repeat(2, 1fr);
    }

    .viz-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .risk-gauge {
        width: 200px;
        height: 100px;
    }

    .risk-gauge::after {
        width: 140px;
        height: 70px;
    }

    .risk-needle {
        height: 70px;
    }

    .tip-card {
        flex-direction: column;
    }

    .risk-bar-label {
        width: 80px;
        font-size: 0.75rem;
    }

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

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.125rem;
    }

    .quick-add-grid {
        grid-template-columns: 1fr;
    }

    .category-overview {
        grid-template-columns: 1fr;
    }

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

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

    .viz-btn {
        width: 100%;
    }
}