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

:root {
    --bg: #f4f4f0;
    --fg: #111111;
    --border: #111111;
    --accent: #0000ff;
    --panel-bg: #f9f9f5;
}

.dark {
    --bg: #111111;
    --fg: #e0e0e0;
    --border: #444444;
    --accent: #40A2E3;
    --panel-bg: #1a1a1a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--fg);
    min-height: 100vh;
    transition: background-color 0.1s, color 0.1s;
}

.activation-lab-page {
    overflow-x: hidden;
}

.font-mono-tech {
    font-family: 'Space Mono', monospace;
}

.site-nav {
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
}

.site-footer {
    border-top: 1px solid var(--border);
    padding: 16px 24px;
    margin-top: 48px;
}

.site-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    opacity: 0.5;
}

.site-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.site-brand {
    color: var(--fg);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.site-nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--fg);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.875rem;
}

.nav-link:hover {
    color: var(--accent);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.hidden {
    display: none !important;
}

.placeholder {
    opacity: 0.5;
    font-style: italic;
}

.main-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
}

@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
}

.evolution-panel {
    border: 1px solid var(--border);
    padding: 16px;
}

.controls {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}

.controls #evolve-btn {
    margin-left: auto;
}

.primary-btn, .secondary-btn {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 8px 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.1s;
}

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

.theme-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--fg);
    padding: 4px 12px;
    text-transform: uppercase;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.theme-btn:hover {
    background: var(--fg);
    color: var(--bg);
}

.primary-btn:disabled, .secondary-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.primary-btn:disabled:hover, .secondary-btn:disabled:hover {
    background: transparent;
    color: var(--fg);
}

.generation-info, .selection-info {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    min-width: 0;
}

.image-cell {
    position: relative;
    aspect-ratio: 1;
    cursor: pointer;
    border: 1px solid var(--border);
    box-shadow: inset 0 0 0 0 var(--border);
    transition: box-shadow 0.1s, border-color 0.1s;
    min-width: 0;
    width: 100%;
    overflow: hidden;
}

.image-cell:hover {
    box-shadow: inset 0 0 0 1px var(--border);
}

.image-cell.selected {
    box-shadow: inset 0 0 0 2px var(--border);
}

.image-cell.viewing {
    border-style: dashed;
}

.image-cell canvas {
    width: 100%;
    height: 100%;
    display: block;
    max-width: 100%;
}

.image-cell .select-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 18px;
    height: 18px;
    background: var(--fg);
    color: var(--bg);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
}

.image-cell.selected .select-badge {
    display: flex;
}

.network-panel {
    border: 1px solid var(--border);
    padding: 16px;
    display: flex;
    flex-direction: column;
    height: fit-content;
}

.network-panel h2 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.inspector-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.view-toggle {
    display: flex;
    gap: 6px;
}

.mode-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.toggle-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.65;
}

.view-toggle .secondary-btn {
    padding: 6px 10px;
}

.view-toggle .secondary-btn.is-active {
    background: var(--fg);
    color: var(--bg);
}

.network-info {
    font-size: 12px;
    margin-bottom: 12px;
    min-height: 20px;
}

.network-info .placeholder {
    opacity: 0.5;
    font-style: italic;
}

.network-visualization {
    border: 1px solid var(--border);
    height: 300px;
    overflow: hidden;
}

#network-svg {
    width: 100%;
    height: 300px;
    display: block;
}

#phylogeny-svg {
    width: 100%;
    height: 300px;
    display: block;
    cursor: grab;
    user-select: none;
}

#phylogeny-svg.dragging {
    cursor: grabbing;
}

.phylogeny-controls {
    margin-top: 8px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.phylogeny-controls .secondary-btn {
    padding: 6px 8px;
}

.network-stats {
    margin-top: 12px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.panel-footer-actions {
    margin-top: 12px;
    display: flex;
    gap: 8px;
}

.panel-footer-actions > .secondary-btn,
.panel-footer-actions > .download-menu > .secondary-btn {
    flex: 1;
}

.download-menu {
    position: relative;
    flex: 1;
}

.download-menu #download-preview-btn {
    width: 100%;
}

.download-resolution-menu {
    position: absolute;
    right: 0;
    bottom: calc(100% + 6px);
    min-width: 140px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    z-index: 20;
}

.download-resolution-menu .resolution-option-btn {
    width: 100%;
    padding: 6px 10px;
    font-size: 11px;
    justify-content: flex-start;
    text-transform: none;
    letter-spacing: 0.03em;
}

.panel-wide-action {
    margin-top: 8px;
    width: 100%;
}

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

.save-actions #save-genome-btn {
    flex: 1;
}

.icon-upload-btn {
    width: 36px;
    min-width: 36px;
    padding: 0;
    font-size: 16px;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

.icon-upload-btn input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.stat-item {
    text-align: center;
    padding: 8px 4px;
    border: 1px solid var(--border);
}

.stat-item .stat-value {
    font-size: 16px;
    font-weight: bold;
}

.stat-item .stat-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.6;
}

.lab-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.lab-header h1 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.lab-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.page-tabs {
    display: inline-flex;
    border: 1px solid var(--border);
}

.page-tab {
    border: 0;
    border-right: 1px solid var(--border);
    background: transparent;
    color: var(--fg);
    padding: 8px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.1s;
}

.page-tab:last-child {
    border-right: 0;
}

.page-tab:hover {
    background: var(--fg);
    color: var(--bg);
}

.page-tab.is-active {
    background: var(--fg);
    color: var(--bg);
}

.lab-network-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lab-controls {
    margin-bottom: 0;
    align-items: center;
}

.file-upload-btn {
    position: relative;
    overflow: hidden;
}

.file-upload-btn input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.lab-zoom-controls {
    display: flex;
    gap: 6px;
    margin-left: auto;
}

.lab-zoom-controls .secondary-btn {
    padding: 6px 10px;
}

.lab-network-stage {
    border: 1px solid var(--border);
    width: 100%;
    aspect-ratio: 5 / 4;
    min-height: 420px;
    overflow: hidden;
}

#editor-network-svg {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
    user-select: none;
}

#editor-network-svg.dragging {
    cursor: grabbing;
}

.lab-connection-editor {
    border: 1px solid var(--border);
    padding: 10px;
    min-height: 88px;
}

.lab-connection-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.connection-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 12px;
}

.connection-label {
    opacity: 0.65;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 10px;
}

#connection-value-input {
    width: 112px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--fg);
    padding: 4px 6px;
    font-size: 12px;
}

.connection-slider-row {
    align-items: center;
}

#connection-value-slider {
    width: 180px;
}

.connection-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.connection-buttons .secondary-btn {
    padding: 6px 8px;
    min-width: 58px;
}

.connection-wide-btn {
    width: 100%;
}

.lab-preview-panel {
    gap: 12px;
}

.lab-preview-stage {
    border: 1px solid var(--border);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    background: var(--panel-bg);
}

.lab-preview-stage canvas {
    width: 100%;
    height: auto;
    max-height: 460px;
    display: block;
}

.lab-connection-picker {
    border: 1px solid var(--border);
    padding: 8px;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 6px;
    max-height: 170px;
    overflow-y: auto;
}

.lab-connection-picker .placeholder {
    grid-column: 1 / -1;
    margin: 2px 0;
}

.connection-chip {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--fg);
    font-size: 10px;
    min-height: 28px;
    padding: 0;
    cursor: pointer;
}

.connection-chip:hover {
    background: var(--fg);
    color: var(--bg);
}

.connection-chip.is-active {
    background: #0000ff;
    color: #fff;
    border-color: #0000ff;
}

@media (max-width: 900px) {
    .site-nav {
        padding: 12px 16px;
    }

    .site-footer {
        padding: 12px 16px;
    }

    .activation-lab-page .container {
        padding: 12px 16px;
    }

    .activation-lab-page .main-layout > * {
        min-width: 0;
    }

    .lab-zoom-controls {
        margin-left: 0;
    }

    .lab-network-stage {
        min-height: 300px;
    }

    body:not(.activation-lab-page) .evolution-panel .controls .panel-footer-actions {
        margin-top: 0;
        margin-left: auto;
        width: auto;
    }

    body:not(.activation-lab-page) .evolution-panel > #evolve-btn {
        width: 100%;
        display: flex;
        margin-top: 14px;
    }
}

@media (max-width: 520px) {
    body:not(.activation-lab-page) .evolution-panel .controls {
        flex-wrap: wrap;
        gap: 6px;
    }

    body:not(.activation-lab-page) .evolution-panel .generation-info,
    body:not(.activation-lab-page) .evolution-panel .selection-info {
        font-size: 10px;
        letter-spacing: 0.03em;
        white-space: nowrap;
    }

    body:not(.activation-lab-page) .evolution-panel .controls .panel-footer-actions {
        gap: 6px;
    }

    body:not(.activation-lab-page) .evolution-panel .controls .panel-footer-actions .secondary-btn {
        flex: 0 0 auto;
        padding: 6px 8px;
        font-size: 10px;
        letter-spacing: 0.03em;
        white-space: nowrap;
    }

    body:not(.activation-lab-page) .evolution-panel > #evolve-btn {
        padding: 8px 10px;
        font-size: 10px;
        letter-spacing: 0.03em;
    }

    .page-tabs {
        display: flex;
        width: 100%;
        max-width: 100%;
    }

    .page-tab {
        flex: 1 1 0;
        min-width: 0;
        padding: 8px 6px;
        font-size: 11px;
        letter-spacing: 0.04em;
    }

    .activation-lab-page .lab-controls {
        gap: 6px;
    }

    .activation-lab-page .lab-controls .secondary-btn,
    .activation-lab-page .lab-controls .file-upload-btn {
        min-width: 0;
        padding: 6px 8px;
        font-size: 10px;
    }

    .activation-lab-page .lab-zoom-controls {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
        width: 100%;
    }

    .activation-lab-page .lab-zoom-controls .secondary-btn {
        min-width: 0;
        width: 100%;
        padding: 6px 8px;
        font-size: 10px;
    }

    .activation-lab-page .connection-row {
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    .activation-lab-page #connection-value-input,
    .activation-lab-page #connection-value-slider {
        width: 100%;
        max-width: 100%;
    }
}