.analytics-dashboard {
    max-width: 100%;
}

.analytics-dashboard h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--accent-cyan);
}

.analytics-dashboard h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--accent-purple);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.analytics-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 2px solid var(--border);
    text-align: center;
    transition: all 0.3s ease;
}

.analytics-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.analytics-value {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-green);
    margin-bottom: 0.5rem;
}

.analytics-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.analytics-section {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 2px solid var(--border);
    margin-bottom: 2rem;
}

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

.category-section-label {
    grid-column: 1 / -1;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: -0.5rem;
}

.category-section-label:not(:first-child) {
    margin-top: 0.5rem;
}

.analytics-category {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.category-name {
    font-weight: 700;
    color: var(--text-primary);
}

.category-counts {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.progress-bars {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mini-progress {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.mini-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.mini-bar {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.mini-fill {
    height: 100%;
    transition: width 0.3s ease;
}

.analytics-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.port-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.problem-port, .strong-port {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.port-info {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.port-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-cyan);
    min-width: 60px;
}

.port-name {
    color: var(--text-primary);
}

.port-stats {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.error-rate {
    font-weight: 700;
}

.review-count {
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
    font-style: italic;
}

.exam-history-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.exam-stat {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border);
}

.exam-stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.exam-stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.exam-history-table-wrapper {
    overflow-x: auto;
    margin-top: 1rem;
}

.exam-history-table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'Space Mono', monospace;
}

.exam-history-table thead {
    background: var(--bg-secondary);
}

.exam-history-table th {
    padding: 1rem;
    text-align: left;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border);
}

.exam-history-row {
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
}

.exam-history-row:hover {
    background: var(--bg-secondary);
}

.exam-history-table td {
    padding: 1rem;
    color: var(--text-primary);
}

.pass-badge, .fail-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.pass-badge {
    background: rgba(0, 255, 136, 0.2);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.fail-badge {
    background: rgba(255, 0, 110, 0.2);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.exam-history-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 1rem;
    font-style: italic;
}

.import-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 39, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    padding: 2rem;
}

.import-dialog {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 16px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.import-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 2px solid var(--border);
}

.import-header h2 {
    margin: 0;
    color: var(--accent-cyan);
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s ease;
}

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

.import-tabs {
    display: flex;
    gap: 0.5rem;
    padding: 1.5rem 2rem 0 2rem;
    border-bottom: 2px solid var(--border);
}

.import-tab {
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    color: var(--text-muted);
    cursor: pointer;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

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

.import-tab.active {
    background: var(--bg-card);
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    font-weight: 700;
}

.import-content {
    padding: 2rem;
}

.import-panel {
    display: none;
}

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

.import-instructions {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.format-example {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.import-textarea {
    width: 100%;
    min-height: 300px;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    resize: vertical;
    margin-bottom: 1.5rem;
}

.import-textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.import-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.import-status {
    display: none;
    padding: 1rem;
    margin: 1.5rem 2rem 2rem 2rem;
    border-radius: 8px;
    font-weight: 700;
    text-align: center;
}

.import-status.success {
    background: rgba(0, 255, 136, 0.2);
    border: 2px solid var(--accent-green);
    color: var(--accent-green);
}

.import-status.error {
    background: rgba(255, 0, 110, 0.2);
    border: 2px solid var(--accent-red);
    color: var(--accent-red);
}