/* what: main stylesheet for guardian one console
   why: dark industrial theme matching portfolio aesthetic
   relations: loaded by index.html, styles all tabs and components */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-success: #22c55e;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #2d2d3a;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 2rem;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header .subtitle {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Footer */
.footer {
    padding: 1.5rem;
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.wasi-highlight {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Tab Navigation */
.tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    position: relative;
}

.tab:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
    background: rgba(59, 130, 246, 0.1);
}

.tab.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-color: transparent;
    color: white;
    font-weight: 600;
    box-shadow:
        0 0 20px rgba(0, 212, 255, 0.4),
        0 0 40px rgba(124, 58, 237, 0.2),
        0 4px 15px rgba(0, 0, 0, 0.3);
}

/* Content Area */
.content {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.tab-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--accent-primary);
}

/* Comparison Grid */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.comparison-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.comparison-card.docker {
    border-left: 4px solid var(--accent-danger);
}

.comparison-card.wasm {
    border-left: 4px solid var(--accent-success);
}

.comparison-card h3 {
    margin-bottom: 1rem;
}

.comparison-card ul {
    list-style: none;
}

.comparison-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.comparison-card li:last-child {
    border-bottom: none;
}

/* ============================================================================
   Problem Tab Styles
   ============================================================================ */

.problem-tab {
    max-width: 900px;
    margin: 0 auto;
}

.tab-intro {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Quote Cards Section */
.quotes-section {
    margin-bottom: 2.5rem;
}

.quotes-section h3 {
    text-align: center;
    margin-bottom: 0.5rem;
}

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

.quote-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.quote-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.quote-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.quote-avatar {
    font-size: 2rem;
}

.quote-author {
    display: flex;
    flex-direction: column;
}

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

.quote-role {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.quote-text {
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.quote-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.quote-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.quote-links {
    display: flex;
    gap: 1rem;
}

.quote-link {
    font-size: 0.85rem;
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.quote-link:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.quote-link.article {
    color: var(--accent-secondary);
}

/* Vulnerabilities Section */
.vulnerabilities-section {
    margin-bottom: 2.5rem;
}

.vulnerabilities-section h3 {
    text-align: center;
    margin-bottom: 0.5rem;
}

.cve-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

.cve-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    border-left: 4px solid var(--accent-danger);
}

.cve-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.cve-id {
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.cve-id:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.severity-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.severity-badge.critical {
    background: var(--accent-danger);
    color: white;
}

.severity-badge.high {
    background: var(--accent-warning);
    color: var(--bg-primary);
}

.cve-name {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.cve-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ICS Stats */
.ics-stats h4 {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border: 1px solid var(--accent-primary);
    border-radius: 12px;
    padding: 1.25rem;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-source {
    display: block;
    font-size: 0.7rem;
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.stat-source:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.wasm-contrast {
    margin-top: 1.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(0, 212, 255, 0.1));
    border: 1px solid var(--accent-success);
    border-radius: 8px;
    text-align: center;
}

.wasm-contrast p {
    color: var(--text-primary);
    margin: 0;
}

/* Comparison Section */
.comparison-section {
    margin-bottom: 2rem;
}

.comparison-section h3 {
    text-align: center;
    margin-bottom: 1rem;
}

.comparison-table {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border-color);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row.header {
    background: var(--bg-secondary);
}

.comparison-row.header .comparison-cell {
    font-weight: 700;
    color: var(--text-primary);
}

.comparison-cell {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.comparison-cell.property {
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-cell.docker {
    background: rgba(239, 68, 68, 0.05);
}

.comparison-cell.docker.bad {
    color: var(--accent-danger);
}

.comparison-cell.wasm {
    background: rgba(34, 197, 94, 0.05);
}

.comparison-cell.wasm.good {
    color: var(--accent-success);
}

/* CTA Button */
.problem-cta {
    text-align: center;
    margin-top: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border-radius: 12px;
}

.problem-cta p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.4);
}

/* Mobile Problem Tab */
@media (max-width: 768px) {
    .quote-cards {
        grid-template-columns: 1fr;
    }

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

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

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

    .comparison-row.header {
        display: none;
    }

    .comparison-cell {
        padding: 0.5rem 1rem;
    }

    .comparison-cell.property {
        background: var(--bg-secondary);
        padding-top: 1rem;
    }

    .comparison-cell::before {
        display: block;
        font-weight: 600;
        font-size: 0.7rem;
        color: var(--text-secondary);
        margin-bottom: 0.25rem;
    }

    .comparison-cell.docker::before {
        content: "Docker:";
    }

    .comparison-cell.wasm::before {
        content: "WASM:";
    }
}

/* Architecture Diagram */
.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.purdue-level {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.purdue-level.level-3 {
    border-left: 4px solid #8b5cf6;
}

.purdue-level.level-2 {
    border-left: 4px solid var(--accent-primary);
}

.purdue-level.level-1 {
    border-left: 4px solid var(--accent-success);
}

.purdue-level.level-0 {
    border-left: 4px solid var(--accent-warning);
}

.level-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
}

.level-content {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.component {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.component.guardian {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(124, 58, 237, 0.2));
    border: 1px solid var(--accent-primary);
}

/* Metrics */
.metrics-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.metric-card h4 {
    margin-bottom: 1rem;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.metric-row:last-child {
    border-bottom: none;
}

.metric-row .label {
    color: var(--text-secondary);
}

.metric-row .value.measured {
    color: var(--accent-success);
}

.metric-row .value.estimate {
    color: var(--accent-warning);
}

/* Attack Arena */
.attack-arena {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.attack-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.attack-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-danger), #dc2626);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.attack-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.attack-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    filter: grayscale(50%);
}

.attack-btn.run-all {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

.attack-result {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 4px solid var(--accent-primary);
    display: none;
}

.attack-result.visible {
    display: block;
}

/* Run Buttons */
.demo-section {
    margin-bottom: 1.5rem;
}

.demo-section h3 {
    margin-bottom: 0.5rem;
}

.section-desc {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.run-btn.primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.run-btn.primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.run-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.run-btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.run-btn.python {
    background: linear-gradient(135deg, var(--accent-warning), #d97706);
    color: white;
}

.run-btn.wasm {
    background: linear-gradient(135deg, var(--accent-success), #16a34a);
    color: white;
}

.run-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Startup Time Badge */
.startup-time {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.startup-time .time {
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.startup-time .time.success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-success);
}

.startup-time .time.warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
}

/* Terminal warning color */
.terminal-line.warning {
    color: var(--accent-warning);
}

.terminal-line.info {
    color: var(--accent-primary);
}

.terminal-line.danger {
    color: var(--accent-danger);
}

/* Comparison Banner */
.comparison-banner {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border: 1px solid var(--accent-primary);
    border-radius: 8px;
    padding: 1rem 2rem;
    margin: 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.comparison-banner .metric {
    font-size: 1.1rem;
}

.comparison-banner .vs {
    color: var(--text-secondary);
}

.comparison-banner .speedup {
    color: var(--accent-success);
    font-size: 1.2rem;
}

/* Attack Section */
.attack-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.attack-section h3 {
    margin-bottom: 0.5rem;
}

.attack-desc {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.attack-results {
    margin-top: 1rem;
}

.attack-results h4 {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Demo Panels */
.demo-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.panel {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.panel.python-panel {
    border-top: 4px solid var(--accent-warning);
}

.panel.wasm-panel {
    border-top: 4px solid var(--accent-success);
}

.terminal {
    background: #000;
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
    margin-top: 1rem;
}

.terminal-line {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.terminal-line.success {
    color: var(--accent-success);
}

/* Proof Tab */
.video-placeholder {
    margin-bottom: 2rem;
}

.video-frame {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 4rem;
    text-align: center;
    border: 2px dashed var(--border-color);
}

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

.measured-metrics table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.measured-metrics th,
.measured-metrics td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.measured-metrics th {
    color: var(--text-secondary);
}

.foundation-links {
    margin-top: 2rem;
}

.foundation-links ul {
    list-style: none;
    margin-top: 1rem;
}

.foundation-links li {
    padding: 0.5rem 0;
}

.foundation-links a {
    color: var(--accent-primary);
    text-decoration: none;
}

.foundation-links a:hover {
    text-decoration: underline;
}

/* ============================================================================
   Proof Tab - Simulation Button and Metrics
   ============================================================================ */

.simulation-control {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.simulation-btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
}

.simulation-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.3);
}

.simulation-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

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

.measured-metrics {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.measured-metrics h3 {
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

.measured-metrics table {
    width: 100%;
    border-collapse: collapse;
}

.measured-metrics th,
.measured-metrics td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.measured-metrics th {
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.measured-metrics td.success {
    color: var(--accent-success);
    font-weight: 600;
}

.measured-metrics td.warning {
    color: var(--accent-warning);
    font-weight: 600;
}

.metrics-note {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ============================================================================
   Protocol Gateway Pattern - Demo Tab Styles
   ============================================================================ */

/* Metrics Banner */
.metrics-banner {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-card);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.metric-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-success);
}

.metric-value.warning {
    color: var(--accent-warning);
}

/* Sensor Comparison */
.sensor-comparison {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.sensor-comparison h4 {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.sensor-row {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.sensor-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.sensor-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.sensor-value {
    font-size: 1.3rem;
    font-weight: 700;
}

.sensor-value.success {
    color: var(--accent-success);
}

.sensor-value.warning {
    color: var(--accent-warning);
}

.action-btn.run-sensor {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    margin-left: auto;
}

/* Terminals Container */
.terminals-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.terminal-panel {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Terminal content area - fixed height, scrollable */
.terminal {
    padding: 0.75rem 1rem;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.8rem;
    max-height: 220px;
    overflow-y: auto;
    flex-grow: 1;
}

.terminal-panel.python-panel {
    border-top: 3px solid var(--accent-warning);
}

.terminal-panel.wasm-panel {
    border-top: 3px solid var(--accent-success);
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.terminal-title {
    font-weight: 600;
}

.terminal-status {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-success);
}

.terminal-status.crashed {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
    animation: pulse 1s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Worker/Instance Boxes */
.workers-panel,
.instances-panel {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.workers-label,
.instances-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.worker-box,
.instance-box {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s;
}

.worker-box.active,
.instance-box.healthy {
    background: var(--accent-success);
    color: white;
}

/* Leader node special styling */
.instance-box.leader.healthy {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
}

/* Python leader node (same gold but will have orange border to show slow election) */
.worker-box.leader.active {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
}

.worker-box.idle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.worker-box.dead,
.instance-box.faulty {
    background: var(--accent-danger);
    color: white;
    animation: shake 0.3s;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-4px);
    }

    75% {
        transform: translateX(4px);
    }
}

/* Memory indicator badge */
.memory-indicator {
    margin-left: auto;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.memory-indicator.warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
}

.memory-indicator.success {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-success);
}

/* Stats Container */
.stats-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stats-panel {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.stats-panel.python-stats {
    border-left: 3px solid var(--accent-warning);
}

.stats-panel.wasm-stats {
    border-left: 3px solid var(--accent-success);
}

.stats-panel h4 {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.stats-row {
    display: flex;
    justify-content: space-around;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-value.error {
    color: var(--accent-danger);
}

.stat-value.warn {
    color: var(--accent-warning);
}

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

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* Attack Actions */
.attack-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.action-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.action-btn.attack {
    background: linear-gradient(135deg, var(--accent-danger), #dc2626);
    color: white;
}

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

.action-btn.reset {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.action-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Attack button selected state */
.attack-btn.selected {
    border-color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.1);
}

/* Attack button running state */
.attack-btn.running {
    border-color: var(--accent-warning);
    background: rgba(245, 158, 11, 0.2);
    animation: pulse 1s infinite;
}

/* Info Box - Browser vs Hardware Explanation */
.info-box {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(124, 58, 237, 0.05));
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 12px;
}

.info-box h4 {
    margin-bottom: 0.75rem;
    color: var(--accent-primary);
    font-size: 1rem;
}

.info-box p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.info-box ul {
    list-style: none;
    margin: 0.75rem 0;
    padding-left: 1rem;
}

.info-box li {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.25rem 0;
    position: relative;
}

.info-box li::before {
    content: "•";
    color: var(--accent-primary);
    position: absolute;
    left: -1rem;
}

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

.info-box code {
    background: rgba(0, 212, 255, 0.1);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    color: var(--accent-primary);
}

.info-box .hardware-note {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.info-box .raft-note {
    margin-bottom: 0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.5rem;
    }

    .tabs {
        gap: 0.25rem;
    }

    .tab {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }

    .content {
        padding: 1rem;
    }

    .terminals-container,
    .stats-container {
        grid-template-columns: 1fr;
    }
}

/* Disable tooltips on touch devices */
@media (hover: none) and (pointer: coarse) {

    [title]:hover::after,
    [title]:hover::before {
        display: none !important;
    }
}

/* Custom instant tooltips (no delay) */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 0.75rem;
    background: rgba(15, 15, 20, 0.95);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 400;
    white-space: nowrap;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s, visibility 0.1s;
    z-index: 1000;
    pointer-events: none;
    max-width: 300px;
    white-space: normal;
    text-align: center;
    line-height: 1.4;
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Arrow for tooltip */
[data-tooltip]::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(15, 15, 20, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.1s, visibility 0.1s;
    z-index: 1001;
}

[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Disable custom tooltips on touch devices */
@media (hover: none) and (pointer: coarse) {

    [data-tooltip]::after,
    [data-tooltip]::before {
        display: none;
    }
}

/* Keep native title as fallback */
@media (hover: hover) {
    [title]:hover {
        cursor: help;
    }
}

/* WIT Code Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--accent-primary);
    max-width: 700px;
    max-height: 80vh;
    width: 100%;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-weight: 600;
    color: var(--accent-primary);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.25rem 0.5rem;
}

.modal-close:hover {
    color: var(--accent-danger);
}

.wit-code {
    padding: 1rem;
    margin: 0;
    overflow-x: auto;
    max-height: 60vh;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-primary);
    background: #0d0d12;
    white-space: pre;
}

/* WIT link in info box */
.wit-link {
    color: var(--accent-primary);
    text-decoration: none;
    cursor: pointer;
    border-bottom: 1px dashed var(--accent-primary);
}

.wit-link:hover {
    color: var(--accent-secondary);
    border-bottom-color: var(--accent-secondary);
}

/* Mobile modal adjustments */
@media (max-width: 768px) {
    .modal-content {
        max-height: 90vh;
        margin: 0.5rem;
    }

    .wit-code {
        font-size: 0.7rem;
        padding: 0.75rem;
    }
}

/* Info Box Styling */
.info-box {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 12px;
    padding: 1.25rem;
    margin-top: 1.5rem;
}

.info-box h4 {
    margin: 0 0 0.75rem 0;
    color: var(--text-primary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.info-box p {
    margin: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.info-box ul {
    margin: 0.75rem 0;
    padding-left: 1.25rem;
}

.info-box li {
    margin: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.demo-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hardware-note {
    margin-top: 1rem !important;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(59, 130, 246, 0.2);
    font-style: italic;
}

/* ============================================================================
   Grouped Attack Sections - Security & Availability
   ============================================================================ */

.attack-group {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.attack-group h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

/* Security group - red/orange accent */
.security-group {
    border-left: 4px solid var(--accent-danger);
}

/* Availability group - blue/cyan accent */
.availability-group {
    border-left: 4px solid var(--accent-primary);
}

.attack-badge {
    font-size: 0.7rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.security-group .attack-badge {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
}

.availability-group .attack-badge {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
}

/* Leader attack buttons - slightly different styling */
.attack-btn.leader-btn {
    background: linear-gradient(135deg, var(--accent-primary), #6366f1);
}

.attack-btn.leader-btn:hover:not(:disabled) {
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Attack actions container (below both groups) */
.attack-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

/* Info sections within info-box */
.info-section {
    margin: 1rem 0;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}

.info-section h5 {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.info-section ul {
    margin: 0;
    padding-left: 1.25rem;
}

.wit-note {
    margin-top: 1rem !important;
}

/* Action buttons (Run All, Reset) */
.action-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.action-btn.runall {
    background: linear-gradient(135deg, #f59e0b, #dc2626);
}

.action-btn.reset {
    background: linear-gradient(135deg, #6b7280, #4b5563);
}

.action-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.action-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    filter: grayscale(50%);
}

.wit-subnote {
    margin-top: 0.25rem !important;
    margin-left: 1rem;
    padding: 0.5rem 0.75rem;
    background: rgba(59, 130, 246, 0.05);
    border-left: 2px solid rgba(59, 130, 246, 0.3);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.wit-subnote code {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    font-family: 'Fira Code', monospace;
}

/* Stats Container - improved with dividers */
.stats-container {
    display: flex;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.stats-panel {
    flex: 1;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    border: 1px solid var(--border-color);
}

.stats-panel.python-stats {
    border-left: 3px solid var(--accent-warning);
}

.stats-panel.wasm-stats {
    border-left: 3px solid var(--accent-success);
}

.stats-panel h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.stats-row {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0.75rem 0.5rem;
    position: relative;
}

/* Dividers between stat items */
.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: linear-gradient(to bottom,
            transparent,
            var(--border-color) 20%,
            var(--border-color) 80%,
            transparent);
}

.stat-item .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: 'Fira Code', monospace;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.stat-item .stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-item .stat-value.error {
    color: var(--accent-danger);
}

.stat-item .stat-value.warn {
    color: var(--accent-warning);
}

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

/* Responsive stats for smaller screens */
@media (max-width: 768px) {
    .stats-container {
        flex-direction: column;
    }

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

/* ============================================================================
   Proof Tab - Hardware Video & Foundation Projects
   ============================================================================ */

/* Hardware Video Placeholder */
.hardware-video-placeholder {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 212, 255, 0.1));
    border: 2px dashed var(--accent-secondary);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.hardware-video-placeholder .video-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.hardware-video-placeholder h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.hardware-video-placeholder p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Foundation Projects - Card Layout */
.foundation-projects {
    margin-top: 2rem;
}

.foundation-projects h3 {
    margin-bottom: 0.75rem;
}

.foundation-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-cards {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-card {
    flex: 1;
    min-width: 180px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.project-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
}

.project-card .project-icon {
    font-size: 2rem;
}

.project-card .project-name {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 1rem;
}

.project-card .project-desc {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .project-cards {
        flex-direction: column;
    }

    .project-card {
        min-width: 100%;
    }
}

/* ============================================================================
   Hardware Tab - Redesigned with Purdue Zones & Component Showcase
   ============================================================================ */

.hardware-tab {
    max-width: 1100px;
    margin: 0 auto;
}

.hardware-intro {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    text-align: center;
}

/* Section Navigation */
.section-nav {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.section-btn {
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.section-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
    background: rgba(0, 212, 255, 0.1);
}

.section-btn.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-color: transparent;
    color: white;
    font-weight: 600;
}

/* Purdue Diagram */
.architecture-section h3 {
    text-align: center;
    margin-bottom: 0.5rem;
}

.purdue-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.purdue-level {
    width: 100%;
    max-width: 700px;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    border: 1px solid var(--border-color);
    position: relative;
}

.purdue-level.level-3 {
    border-left: 4px solid #8b5cf6;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), var(--bg-card));
}

.purdue-level.level-2 {
    border-left: 4px solid var(--accent-primary);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), var(--bg-card));
}

.purdue-level.level-1 {
    border-left: 4px solid var(--accent-warning);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), var(--bg-card));
}

.purdue-level.level-0 {
    border-left: 4px solid var(--accent-success);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), var(--bg-card));
}

.purdue-level.guardian-zone {
    border: 2px solid var(--accent-primary);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.level-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.level-badge {
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

.level-components {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.level-components.cluster-nodes {
    justify-content: center;
}

.cluster-label,
.protocol-label {
    text-align: center;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 600;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Hardware Cards */
.hw-card {
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    min-width: 90px;
    text-align: center;
}

.hw-card.node {
    border: 1px solid var(--border-color);
}

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

.hw-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.hw-role {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.status-led {
    font-size: 0.8rem;
}

.status-led.blue {
    color: #3b82f6;
}

.status-led.green {
    color: var(--accent-success);
}

.status-led.red {
    color: var(--accent-danger);
}

/* Component Cards Section */
.components-section h3 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.component-category {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
}

.component-category h4 {
    margin-bottom: 1rem;
    color: var(--accent-primary);
    font-size: 1rem;
}

.component-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.component-card {
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.card-name {
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    min-width: 150px;
}

.card-role {
    color: var(--text-secondary);
    font-size: 0.85rem;
    flex: 1;
}

.card-zone {
    background: var(--bg-primary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    color: var(--accent-primary);
    border: 1px solid var(--border-color);
}

/* Compliance Section */
.compliance-section h3 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.compliance-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.zone {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.zone.green {
    border-left: 4px solid var(--accent-success);
}

.zone.yellow {
    border-left: 4px solid var(--accent-warning);
}

.zone.red {
    border-left: 4px solid var(--accent-danger);
}

.zone-badge {
    font-size: 1.25rem;
}

.zone-info {
    display: flex;
    flex-direction: column;
}

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

.zone-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.conduit {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--accent-secondary);
    padding: 0.25rem 0;
}

.compliance-note {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border: 1px solid var(--accent-primary);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    font-size: 0.9rem;
}

/* Toolchain Section */
.toolchain-section h3 {
    margin-bottom: 0.5rem;
    text-align: center;
}

.toolchain-intro {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 1.5rem;
}

.toolchain-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    max-width: 400px;
    margin: 0 auto 1.5rem;
}

.tool-box {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    text-align: center;
}

.tool-box .tool-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

.tool-box .tool-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    display: block;
}

.tool-box .tool-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
}

.tool-features {
    list-style: none;
    margin-top: 0.75rem;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tool-features li {
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
}

.tool-features li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.tool-flow {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.toolchain-value {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    max-width: 500px;
    margin: 0 auto;
}

.toolchain-value h4 {
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.toolchain-value ul {
    list-style: none;
}

.toolchain-value li {
    padding: 0.4rem 0;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.toolchain-value li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-success);
}

/* Responsive Hardware Tab */
@media (max-width: 768px) {
    .section-nav {
        gap: 0.25rem;
    }

    .section-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .purdue-level {
        padding: 0.75rem 1rem;
    }

    .level-components {
        flex-direction: column;
        align-items: center;
    }

    .hw-card {
        width: 100%;
        max-width: 200px;
    }

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

/* Tech Badges (WIT/WASM Icons) */
.tech-badges {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 0.75rem 0;
    flex-wrap: wrap;
}

.tech-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(0, 212, 255, 0.2));
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--accent-secondary);
}

.tech-badge span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tech-icon {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

/* ============================================================================
   Click-to-Toggle Tooltip System - Works on Desktop and Mobile
   ============================================================================ */

.section-hint {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* Info button - clickable on all devices */
.info-btn {
    background: none;
    border: none;
    font-size: 0.9rem;
    color: var(--accent-primary);
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    margin-left: 0.5rem;
    border-radius: 50%;
    transition: all 0.2s;
}

.info-btn:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

/* Tooltip popup - shown via Leptos signal, centered overlay */
.tooltip-popup {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 1000;
    background: var(--bg-secondary);
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    padding: 1.25rem;
    max-width: 400px;
    width: 90%;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.7);
    animation: tooltip-fade-in 0.15s ease-out;
}

/* Overlay to catch clicks outside tooltip and close it */
.tooltip-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0, 0, 0, 0.3);
}

@keyframes tooltip-fade-in {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tooltip-popup .tooltip-content {
    display: block;
}

.tooltip-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    font-size: 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
}

.tooltip-close:hover {
    color: var(--accent-danger);
}

/* ============================================================================
   WIT/WASM Highlight - Special emphasis for key tech
   ============================================================================ */

/* L2 Guardian Zone gets a special glowing border */
.purdue-level.level-2.guardian-zone {
    border: 2px solid var(--accent-secondary);
    box-shadow:
        0 0 15px rgba(124, 58, 237, 0.3),
        inset 0 0 30px rgba(124, 58, 237, 0.05);
    position: relative;
}

.purdue-level.level-2.guardian-zone::before {
    content: "★ WASI 0.2 + WIT Contract";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-secondary);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.75rem;
    border-radius: 4px;
    white-space: nowrap;
}

/* Zone 2 in IEC 62443 also gets highlight */
.zone.yellow {
    border: 2px solid var(--accent-secondary) !important;
    box-shadow: 0 0 12px rgba(124, 58, 237, 0.25);
}

/* ============================================================================
   Mobile Responsive Hardware Tab
   ============================================================================ */

@media (max-width: 768px) {
    .purdue-diagram {
        padding: 0 0.5rem;
    }

    .purdue-level {
        padding: 0.75rem;
    }

    .level-header {
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
    }

    .level-name {
        font-size: 0.9rem;
    }

    .tech-badges {
        gap: 0.75rem;
    }

    .tech-badge {
        padding: 0.4rem 0.75rem;
    }

    .tech-icon {
        width: 30px;
        height: 30px;
    }

    .tech-badge span {
        font-size: 0.75rem;
    }

    .level-components {
        flex-direction: column;
        align-items: center;
    }

    .hw-card {
        width: 100%;
        max-width: 180px;
    }

    /* Tooltip popup mobile - full width at bottom */
    .tooltip-popup {
        margin: 0.5rem 0;
    }

    /* Components section mobile */
    .components-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .component-card {
        flex-direction: column;
        text-align: center;
        gap: 0.25rem;
    }

    .card-name,
    .card-role {
        flex: none;
        min-width: auto;
    }

    /* Compliance section mobile */
    .compliance-diagram {
        padding: 0 0.5rem;
    }

    .zone {
        padding: 0.75rem 1rem;
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
    }

    .zone-info {
        align-items: center;
    }

    .conduit {
        font-size: 0.65rem;
    }

    /* Toolchain section mobile */
    .toolchain-diagram {
        max-width: 100%;
        padding: 0 0.5rem;
    }

    .tool-box {
        padding: 1rem;
    }

    .tool-icon {
        font-size: 1.5rem !important;
    }

    .tool-name {
        font-size: 1rem !important;
    }

    .tool-features li {
        font-size: 0.8rem;
    }

    /* WIT label on mobile */
    .purdue-level.level-2.guardian-zone::before {
        font-size: 0.6rem;
        padding: 0.1rem 0.5rem;
    }
}