@import url("./styles-original.css?v=20260717");

/* Keep the document in the normal vertical flow so every section remains reachable. */
html,
body {
    width: 100%;
    height: auto;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto !important;
    overscroll-behavior-y: auto;
}
body {
    position: static;
    touch-action: pan-y;
}
#app-main {
    height: auto;
    min-height: 0;
    max-height: none;
    overflow: visible;
    align-items: start;
    grid-auto-rows: max-content;
}

.visualization-area {
    height: auto;
    min-height: 0;
    max-height: none;
    overflow: visible;
    align-self: start;
    grid-template-rows: max-content max-content !important;
}

.controls-panel {
    position: static;
    top: auto;
    max-height: none;
    overflow: visible;
    align-self: start;
}

.visualization-area,
.charts-row,
.spd-panel,
.cie-panel {
    min-width: 0;
}

.charts-row {
    display: grid;
    grid-template-columns: minmax(0, 1.65fr) minmax(300px, 1fr);
    gap: 18px;
    align-items: stretch;
}

.spd-panel,
.cie-panel {
    overflow: hidden;
    align-self: stretch;
    height: 100%;
}

.spd-panel {
    display: flex;
    flex-direction: column;
}

.canvas-wrapper {
    width: 100%;
    min-width: 0;
}

#cie-canvas-wrapper {
    width: 100%;
    aspect-ratio: 1 / 1;
    height: auto;
    max-height: none;
}

#spd-canvas,
#cie-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.presets-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    font: inherit;
    cursor: pointer;
    text-align: left;
}

.presets-toggle strong {
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
}

.presets-toggle strong span {
    font-size: 0.72rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 4px;
}

.presets-toggle-icon {
    font-size: 0.9rem;
    line-height: 1;
    transition: transform 0.2s ease;
}

.presets-toggle[aria-expanded="true"] .presets-toggle-icon {
    transform: rotate(180deg);
}

.presets-section .preset-buttons[hidden] {
    display: none !important;
}

.presets-section .preset-buttons:not([hidden]) {
    margin-top: 10px;
}

/* Give the real-time optimizer enough room for readable controls. */
.optimizer-section {
    height: auto !important;
    min-height: max-content;
    padding: 20px 22px 22px;
    overflow: visible;
    align-self: start;
    box-sizing: border-box;
}

.optimizer-header {
    margin-bottom: 4px;
}

.optimizer-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.9fr);
    gap: 24px;
    margin-top: 18px;
    align-items: start;
    height: auto;
    min-height: 0;
}

.target-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.target-row {
    min-width: 0;
    padding: 12px 14px;
}

.metamer-controls {
    grid-column: 1 / -1;
}

.metamer-profile-heading {
    display: flex;
    align-items: baseline;
    gap: 7px;
    margin-bottom: 7px;
}

.metamer-profile-heading strong {
    font-size: 0.75rem;
}

.metamer-profile-heading span {
    color: var(--text-muted);
    font-size: 0.64rem;
}

.metamer-profile-options {
    display: grid;
    grid-template-columns: 0.7fr 1fr 1fr;
    gap: 4px;
    padding: 3px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: rgba(255,255,255,0.42);
}

.metamer-profile-options label {
    position: relative;
    display: flex;
    min-height: 38px;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-size: 0.7rem;
}

.metamer-profile-options label:has(input:checked) {
    color: var(--text-primary);
    background: #fff;
    box-shadow: 0 1px 3px rgba(42,37,30,0.12);
}

.metamer-profile-options input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.metamer-profile-options small {
    color: var(--text-muted);
    font-size: 0.57rem;
}

.metamer-readout {
    display: flex;
    min-height: 18px;
    margin-top: 6px;
    color: var(--text-muted);
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.64rem;
}

.preset-action-container {
    gap: 14px;
    height: auto;
    min-height: 0;
}

.optimizer-mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 3px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: rgba(255,255,255,0.42);
}

.optimizer-mode-tabs button {
    min-height: 34px;
    border: 0;
    border-radius: 4px;
    color: var(--text-secondary);
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-size: 0.75rem;
}

.optimizer-mode-tabs button span {
    margin-left: 4px;
    color: var(--text-muted);
    font-size: 0.64rem;
}

.optimizer-mode-tabs button[aria-selected="true"] {
    color: var(--text-primary);
    background: #fff;
    box-shadow: 0 1px 3px rgba(42,37,30,0.12);
}

.optimizer-mode-panel[hidden] {
    display: none;
}

.schedule-mode-panel {
    display: grid;
    gap: 8px;
}

.schedule-clock-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.schedule-clock-row > div {
    display: flex;
    flex-direction: column;
}

#schedule-clock {
    font-family: "JetBrains Mono", monospace;
    font-size: 1.25rem;
}

#schedule-current-stage,
.schedule-note {
    color: var(--text-muted);
    font-size: 0.67rem;
}

.schedule-auto-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
}

.schedule-stage-list {
    display: grid;
    gap: 5px;
}

.schedule-stage-row {
    display: grid;
    grid-template-columns: 68px minmax(0, 1fr) 30px;
    gap: 7px;
    align-items: center;
    min-height: 38px;
    padding: 5px 7px;
    border: 1px solid var(--border);
    border-radius: 5px;
    background: rgba(255,255,255,0.4);
}

.schedule-stage-row.is-active {
    border-color: var(--accent);
    background: rgba(222,169,71,0.1);
}

.schedule-stage-row input[type="time"] {
    width: 68px;
    border: 0;
    color: var(--text-primary);
    background: transparent;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.68rem;
}

.schedule-stage-label {
    display: flex;
    min-width: 0;
    flex-direction: column;
    font-size: 0.7rem;
}

.schedule-stage-label small {
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.6rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.schedule-preview-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    background: #fff;
    cursor: pointer;
}

.schedule-note {
    margin: 0;
    line-height: 1.4;
}

.optimizer-presets-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.opt-preset-btn {
    min-height: 54px;
    padding: 9px 8px;
}

.optimizer-action-stack {
    gap: 8px;
}

@media (max-width: 1180px) {
    .charts-row {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .spd-panel,
    .cie-panel {
        height: auto;
        align-self: start;
    }

    .cie-panel {
        width: min(100%, 680px);
        justify-self: center;
    }

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

@media (max-width: 720px) {
    .optimizer-section {
        padding: 16px;
    }

    .target-controls,
    .optimizer-presets-grid {
        grid-template-columns: 1fr;
    }
}

/* Professional spectral analysis */
.action-curve-menu {
    position: relative;
}

.action-curve-menu > summary {
    min-height: 32px;
    padding: 6px 10px;
    border: 1px solid rgba(72, 64, 52, 0.16);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
    color: #4c463e;
    font-size: 12px;
    font-weight: 650;
    cursor: pointer;
    list-style: none;
}

.action-curve-menu > summary::-webkit-details-marker {
    display: none;
}

.action-curve-popover {
    position: absolute;
    z-index: 20;
    top: calc(100% + 8px);
    right: 0;
    width: 286px;
    padding: 10px;
    border: 1px solid rgba(72, 64, 52, 0.14);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 12px 30px rgba(52, 45, 34, 0.16);
}

.action-curve-popover label {
    display: grid;
    grid-template-columns: 18px 12px minmax(0, 1fr) auto;
    align-items: center;
    gap: 7px;
    min-height: 30px;
    font-size: 12px;
}

.action-curve-popover .action-curve-swatch {
    width: 10px;
    height: 3px;
    border-radius: 2px;
    background: var(--curve-color);
}

.action-curve-popover .action-curve-label {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.action-curve-popover [data-action-curve-der],
.action-curve-popover .action-curve-reference {
    min-width: 34px;
    color: var(--text-primary);
    font: 650 11px "JetBrains Mono", monospace;
    text-align: right;
    white-space: nowrap;
}

.action-curve-popover .action-curve-reference {
    color: var(--text-muted);
    font-style: normal;
}

.action-curve-popover small {
    display: block;
    margin-top: 7px;
    color: #81786c;
    line-height: 1.45;
}

.professional-analysis-panel {
    grid-column: 1 / -1;
    padding: 0;
    overflow: visible;
}

.professional-analysis-panel > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 15px 18px;
    cursor: pointer;
    list-style: none;
}

.professional-analysis-panel > summary::-webkit-details-marker {
    display: none;
}

.professional-analysis-panel > summary > span:first-child {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.professional-analysis-panel > summary strong {
    font-size: 15px;
}

.professional-analysis-panel > summary small,
.professional-analysis-panel > summary > span:last-child {
    color: #898176;
    font-size: 12px;
}

.professional-analysis-panel[open] > summary {
    border-bottom: 1px solid rgba(72, 64, 52, 0.1);
}

.professional-analysis-body {
    display: grid;
    grid-template-columns: minmax(340px, 0.8fr) minmax(430px, 1.2fr);
    gap: 16px;
    padding: 16px 18px 18px;
}

.professional-coordinate-grid {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.professional-coordinate-grid > div,
.alpha-opic-grid > div {
    min-width: 0;
    padding: 11px 12px;
    border-radius: 8px;
    background: #f7f7f9;
}

.professional-coordinate-grid span,
.alpha-opic-grid span,
.alpha-opic-grid small {
    display: block;
    color: #7b746a;
    font-size: 11px;
}

.professional-coordinate-grid strong {
    display: block;
    margin-top: 5px;
    font: 650 14px "JetBrains Mono", monospace;
}

.professional-diagram-section {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
}

.professional-diagram-section figure {
    min-width: 0;
    width: min(100%, 720px);
    justify-self: center;
    margin: 0;
    padding: 12px;
    border: 1px solid rgba(72, 64, 52, 0.1);
    border-radius: 10px;
    background: #fff;
}

.professional-diagram-section figcaption {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.professional-diagram-section figcaption strong {
    color: #302d29;
    font-size: 13px;
}

.professional-diagram-section figcaption span {
    color: #847c71;
    font: 500 11px "JetBrains Mono", monospace;
}

.professional-diagram-section canvas {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
}

.alpha-opic-section,
.channel-contribution-section {
    min-width: 0;
    padding: 14px;
    border: 1px solid rgba(72, 64, 52, 0.1);
    border-radius: 10px;
}

.professional-subhead {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.professional-subhead strong,
.professional-subhead small {
    display: block;
}

.professional-subhead small {
    margin-top: 3px;
    color: #847c71;
    font-size: 11px;
}

.professional-subhead select {
    max-width: 160px;
    height: 32px;
    border: 1px solid rgba(72, 64, 52, 0.16);
    border-radius: 7px;
    background: #fff;
}

.alpha-opic-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 7px;
}

.alpha-opic-grid span {
    padding-left: 8px;
    border-left: 3px solid var(--curve-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.alpha-opic-grid strong {
    display: block;
    margin-top: 8px;
    font: 700 18px "JetBrains Mono", monospace;
}

.channel-contribution-list {
    display: grid;
    gap: 8px;
}

.channel-contribution-row {
    display: grid;
    grid-template-columns: minmax(95px, 0.65fr) minmax(120px, 1.5fr) 48px;
    align-items: center;
    gap: 9px;
    font-size: 11px;
}

.channel-contribution-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.channel-contribution-name i {
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 6px;
    border-radius: 50%;
    background: var(--channel-color);
}

.channel-contribution-track {
    height: 7px;
    overflow: hidden;
    border-radius: 5px;
    background: #e9e7e3;
}

.channel-contribution-track b {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--channel-color);
}

.channel-contribution-row > strong {
    text-align: right;
    font: 650 11px "JetBrains Mono", monospace;
}

.channel-contribution-section > p,
.professional-data-status {
    margin: 11px 0 0;
    color: #847c71;
    font-size: 10px;
    line-height: 1.45;
}

.professional-data-status {
    grid-column: 1 / -1;
}

@media (max-width: 1200px) {
    .professional-analysis-body {
        grid-template-columns: 1fr;
    }

    .professional-coordinate-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .alpha-opic-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 620px) {
    .professional-analysis-panel > summary > span:first-child {
        display: block;
    }

    .professional-coordinate-grid,
    .alpha-opic-grid {
        grid-template-columns: 1fr 1fr;
    }

    .channel-contribution-row {
        grid-template-columns: minmax(80px, 0.8fr) minmax(80px, 1fr) 44px;
    }

    .professional-diagram-section {
        grid-template-columns: 1fr;
    }
}

/* Final chart composition: analysis above, live colour and daily plan together. */
.charts-row {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    grid-template-areas:
        "spd cie"
        "combo combo";
}

.charts-row > .spd-panel { grid-area: spd; }
.charts-row > .cie-panel { grid-area: cie; }
.charts-row > .emitter-preview { grid-area: combo; }

.charts-row > .emitter-preview {
    display: grid;
    grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.8fr);
    grid-template-rows: auto minmax(0, 1fr) auto;
    column-gap: 18px;
    align-items: stretch;
}

.charts-row > .emitter-preview > .emitter-preview-heading {
    grid-column: 1;
    grid-row: 1;
}

.charts-row > .emitter-preview > .emitter-preview-stage {
    grid-column: 1;
    grid-row: 2;
    margin-top: 12px;
}

.charts-row > .emitter-preview > .emitter-metamer-controls {
    grid-column: 1;
    grid-row: 3;
}

.charts-row > .emitter-preview > .tuning-group-health {
    grid-column: 2;
    grid-row: 1 / 4;
    min-width: 0;
    margin: 0;
    padding: 0 0 0 18px;
    border: 0;
    border-left: 1px solid var(--divider);
    border-radius: 0;
    background: transparent;
    align-self: stretch;
}

.charts-row > .emitter-preview .health-condition-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.charts-row > .emitter-preview .preset-action-container {
    width: 100%;
}

.charts-row > .emitter-preview .schedule-mode-panel {
    width: 100%;
    box-sizing: border-box;
}

.charts-row > .emitter-preview .schedule-stage-list {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
    max-height: none;
    overflow: visible;
}

.charts-row > .emitter-preview .schedule-stage-row {
    grid-template-columns: minmax(0, 1fr) 28px;
    grid-template-rows: auto auto;
    gap: 5px;
}

.charts-row > .emitter-preview .schedule-stage-row input[type="time"] {
    grid-column: 1;
    width: 100%;
}

.charts-row > .emitter-preview .schedule-stage-row > .schedule-stage-label {
    grid-column: 1;
}

.charts-row > .emitter-preview .schedule-preview-btn {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
}

@media (max-width: 1000px) {
    .charts-row {
        grid-template-columns: 1fr;
        grid-template-areas:
            "spd"
            "cie"
            "combo";
    }

    .charts-row > .emitter-preview {
        grid-template-columns: 1fr;
    }

    .charts-row > .emitter-preview > .emitter-preview-heading,
    .charts-row > .emitter-preview > .emitter-preview-stage,
    .charts-row > .emitter-preview > .emitter-metamer-controls,
    .charts-row > .emitter-preview > .tuning-group-health {
        grid-column: 1;
        grid-row: auto;
    }

    .charts-row > .emitter-preview > .tuning-group-health {
        margin-top: 14px;
        padding: 14px 0 0;
        border-top: 1px solid var(--divider);
        border-left: 0;
    }
}

@media (max-width: 720px) {
    .charts-row > .emitter-preview .health-condition-grid,
    .charts-row > .emitter-preview .schedule-stage-list {
        grid-template-columns: 1fr;
    }
}

/* Unified Apple-style scientific workspace */
:root {
    --canvas: #f5f5f7;
    --surface: #ffffff;
    --surface-secondary: #f9f9fb;
    --surface-control: #ececf0;
    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-muted: #86868b;
    --divider: rgba(0, 0, 0, 0.10);
    --action: #0071e3;
    --action-soft: rgba(0, 113, 227, 0.09);
    --health: #248a3d;
    --health-soft: rgba(36, 138, 61, 0.09);
    --duration-press: 120ms;
    --duration-state: 180ms;
    --duration-value: 220ms;
    --duration-control: 220ms;
    --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
    --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
    --border: var(--divider);
    --glass-bg: var(--surface);
    --glass-border: var(--divider);
    --glass-border-hover: rgba(0, 113, 227, 0.28);
    --accent: var(--action);
    --accent-blue: var(--action);
    --gold: var(--action);
    --card-radius: 8px;
    --panel-shadow: 0 2px 12px rgba(0, 0, 0, 0.055);
}

* { box-sizing: border-box; }

html { background: var(--canvas); }

body {
    margin: 0;
    color: var(--text-primary);
    background: var(--canvas);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
}

.bg-grid,
.kicker,
.title-sub { display: none !important; }

.page-hero {
    display: flex;
    width: min(1600px, calc(100% - 40px));
    min-height: 66px;
    margin: 0 auto;
    padding: 16px 0 12px;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
}

.page-hero h1,
.page-hero p { margin: 0; }

.page-hero h1 { line-height: 1; }

.page-hero h1 {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.title-logo,
.title-brand-logo {
    display: block;
    height: auto;
    flex: 0 0 auto;
}

.title-logo {
    width: clamp(86px, 8vw, 118px);
    max-height: 34px;
}

.page-hero-title {
    display: flex;
    min-width: 0;
    align-items: flex-end;
    gap: 14px;
}

.title-brand {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 2px;
    color: var(--text-muted);
    font-size: 0.62rem;
    font-weight: 500;
    line-height: 1.35;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.title-brand-logo {
    width: 38px;
    max-height: 13px;
}

.title-brand-copy {
    min-width: 0;
}

.title-main {
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", sans-serif;
    font-size: clamp(1.55rem, 2.2vw, 2.15rem);
    font-weight: 650;
    letter-spacing: 0;
}

.page-hero p {
    color: var(--text-secondary);
    font-size: 0.78rem;
    line-height: 1.45;
    text-align: right;
}

#app-main {
    width: min(1600px, calc(100% - 40px));
    margin: 0 auto;
    padding: 0 0 24px;
    grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
    grid-template-rows: auto auto;
    grid-template-areas:
        "controls charts"
        "optimizer metrics";
    gap: 14px;
}

.controls-panel { grid-area: controls; }
.charts-row { grid-area: charts; }
.optimizer-section { grid-area: optimizer; }
.metrics-workspace { grid-area: metrics; }

.glass-card,
.metric-group,
.tuning-group {
    border: 1px solid var(--divider);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--panel-shadow);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.glass-card:hover { border-color: var(--divider); }

.controls-panel,
.spd-panel,
.cie-panel,
.optimizer-section,
.metric-group,
.color-samples-panel {
    animation: none !important;
}

.left-column {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-self: start;
}

.controls-panel {
    position: static;
    padding: 16px;
}

.panel-header,
.spd-header,
.cie-header,
.optimizer-header,
.color-samples-header {
    padding-bottom: 11px;
    border-bottom: 1px solid var(--divider);
}

.panel-header h2,
.spd-header h2,
.cie-header h2,
.optimizer-header h2,
.color-samples-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.98rem;
    font-weight: 650;
    letter-spacing: 0;
}

.panel-header h2 span,
.spd-header h2 span,
.cie-header h2 span,
.optimizer-header h2 span,
.section-heading h2 span,
.section-heading h3 span { display: none; }

.mode-toggle-container,
.optimizer-mode-tabs,
.color-samples-controls,
.metamer-profile-options {
    border: 0;
    border-radius: 7px;
    background: var(--surface-control);
}

.mode-toggle-container { margin-top: 12px; }
.mode-label { color: var(--text-secondary); font-size: 0.72rem; }
.mode-label.active { color: var(--text-primary); }

.data-note,
.spd-import,
.emitter-preview,
.target-row,
.metamer-controls,
.pastel-debug-panel,
.schedule-mode-panel {
    border-color: var(--divider);
    border-radius: 7px;
    background: var(--surface-secondary);
}

.data-note { color: var(--text-secondary); }
.data-note strong { color: var(--text-primary); }

.import-btn,
.preset-btn,
.opt-preset-btn,
.journey-icon-btn,
.export-recipe-btn,
.schedule-preview-btn,
.optimizer-mode-tabs button,
.color-samples-controls label,
.metamer-profile-options label,
.pastel-color-card {
    transition: color var(--duration-state) var(--ease-out), background-color var(--duration-state) var(--ease-out), border-color var(--duration-state) var(--ease-out), box-shadow var(--duration-state) var(--ease-out), transform var(--duration-press) var(--ease-out);
}

.pastel-palette-grid,
.metric-group-grid {
    display: grid;
}

.metric-group-grid {
    gap: 8px;
}

.controls-panel {
    height: auto !important;
}

.optimizer-functional-grid {
    align-items: start;
}

.tuning-group,
.metric-group-health {
    align-self: start;
}

.metric-group-health {
    grid-row: 1;
}

button:active,
.color-samples-controls label:active,
.metamer-profile-options label:active,
.pastel-color-card:active { transform: scale(0.97); }

.import-btn,
.preset-btn,
.opt-preset-btn,
.journey-icon-btn,
.export-recipe-btn,
.schedule-preview-btn {
    color: var(--text-primary);
    border-color: var(--divider);
    background: var(--surface);
    box-shadow: none;
}

.preset-btn.reset { color: var(--action); }

.optimizer-mode-tabs button[aria-selected="true"],
.color-samples-controls label:has(input:checked),
.metamer-profile-options label:has(input:checked) {
    color: var(--text-primary);
    background: var(--surface);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.14);
}

.visualization-area {
    display: grid;
    gap: 14px;
}

.charts-row { gap: 14px; }
.metrics-workspace { }

.spd-panel,
.cie-panel { padding: 16px; }

.canvas-wrapper {
    margin-top: 12px;
    border: 1px solid var(--divider);
    border-radius: 7px;
    background: #fff;
}

.optimizer-section { padding: 16px; }
.optimizer-desc { margin: 3px 0 0; color: var(--text-secondary); font-size: 0.7rem; }
.ai-badge { margin-right: 7px; color: var(--action); border: 0; background: var(--action-soft); }

.optimizer-functional-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 14px;
}

.tuning-group {
    min-width: 0;
    padding: 14px;
    box-shadow: none;
}

.tuning-group-health { border-top-color: rgba(36, 138, 61, 0.36); }
.section-heading { margin-bottom: 10px; }
.section-eyebrow { color: var(--text-secondary); font-size: 0.62rem; letter-spacing: 0; text-transform: none; }
.section-heading h2,
.section-heading h3 { font-size: 0.95rem; }
.section-heading p { color: var(--text-secondary); }

.target-controls,
.health-condition-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.health-condition-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.metamer-controls { grid-column: 1 / -1; }
.target-row { padding: 9px 10px; }
.target-row label { color: var(--text-primary); font-size: 0.7rem; }
.target-row label span { color: var(--action); }
.tuning-group-health .target-row label span { color: var(--health); }

input[type="range"] { accent-color: var(--action); }
.tuning-group-health input[type="range"] { accent-color: var(--health); }

.pastel-debug-panel {
    margin-top: 10px;
    padding: 10px;
    border: 1px solid var(--divider);
    box-shadow: none;
}

.pastel-palette-grid { grid-template-columns: repeat(6, minmax(38px, 1fr)); gap: 5px; }
.pastel-color-card { height: 42px; border-radius: 6px; }
.pastel-color-card.is-selected { border-color: var(--action); box-shadow: 0 0 0 3px var(--action-soft); }

.preset-action-container {
    margin-top: 10px;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
}

.optimizer-action-stack {
    display: flex !important;
    flex-direction: row !important;
    justify-content: space-between;
    align-items: center;
    gap: 12px !important;
    margin-top: 4px;
}

.optimizer-action-stack > * {
    margin: 0 !important;
}
.optimizer-mode-tabs { padding: 3px; }
.optimizer-mode-tabs button { min-height: 32px; }
.optimizer-mode-panel { opacity: 1; transition: opacity 160ms var(--ease-out); }
.optimizer-mode-panel.is-entering { opacity: 0; }
.optimizer-mode-panel[hidden] { display: none; }
.optimizer-presets-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.opt-preset-btn { min-height: 40px; padding: 7px; }
.opt-preset-btn.is-selected { color: var(--action); border-color: rgba(0, 113, 227, 0.35); background: var(--action-soft); }

.metrics-workspace {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 3fr);
    grid-template-areas:
        "quality health"
        "samples samples";
    gap: 14px;
    align-items: start;
}

.metric-group-quality { grid-area: quality; }
.metric-group-health { grid-area: health; }
.color-samples-panel { grid-area: samples; }

.metric-group { padding: 15px; box-shadow: none; }
.metric-group-quality { margin: 0; }
.color-samples-panel { margin: 0; padding: 15px; box-shadow: none; }
.metric-group-health { margin: 0; }
.quality-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.health-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.metric-card {
    min-height: 102px;
    padding: 10px;
    border: 0;
    border-radius: 7px;
    background: var(--surface-secondary);
    box-shadow: none;
    animation: none !important;
}

.metric-card:hover { border: 0; transform: none; box-shadow: none; }
.metric-card.pulse { animation: none !important; }
.metric-icon { color: var(--action); border: 0; background: var(--action-soft); }
.metric-group-health .metric-icon { color: var(--health); background: var(--health-soft); }
.metric-label { color: var(--text-secondary); }
.metric-value { color: var(--text-primary); }

.metric-bar { overflow: hidden; background: rgba(0, 0, 0, 0.07); }
.metric-bar::after {
    width: 100% !important;
    transform: scaleX(var(--bar-scale, 0));
    transform-origin: left center;
    background: var(--bar-color, var(--action));
    transition: transform var(--duration-value) var(--ease-out), background-color var(--duration-state) var(--ease-out);
}

.color-samples-header { margin-bottom: 10px; }
.color-samples-controls { padding: 3px; }
.color-samples-grid { min-height: 180px; }
.tcs-bar-fill { transform-origin: left center; transition: transform var(--duration-value) var(--ease-out); }

#app-footer {
    width: min(1600px, calc(100% - 40px));
    margin: 0 auto;
    padding: 14px 0 24px;
    color: var(--text-secondary);
    border-top: 1px solid var(--divider);
}

#app-footer > p:first-child { display: none; }
.build-version { margin-left: 8px; opacity: 0.72; white-space: nowrap; }

@media (hover: hover) and (pointer: fine) {
    .import-btn:hover,
    .preset-btn:hover,
    .opt-preset-btn:hover,
    .journey-icon-btn:hover,
    .export-recipe-btn:hover,
    .schedule-preview-btn:hover,
    .pastel-color-card:hover {
        transform: translateY(-1px);
        border-color: rgba(0, 113, 227, 0.28);
    }
}

/* Independent page columns prevent unrelated sections from sharing row height. */
#app-main {
    display: grid;
    grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
    grid-template-rows: none;
    grid-template-areas: none;
    align-items: start;
}

.left-column,
.right-column {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-self: start;
}

.left-column > *,
.right-column > * {
    width: 100%;
    box-sizing: border-box;
}

.left-column .controls-panel {
    align-self: stretch;
}

.controls-panel,
.optimizer-section,
.charts-row,
.metrics-workspace {
    grid-area: auto;
}

.charts-row {
    grid-template-columns: minmax(0, 1.55fr) minmax(270px, 0.9fr) minmax(170px, 0.46fr);
}

.charts-row .emitter-preview {
    min-width: 0;
    height: 100%;
    padding: 16px;
    border-top: 1px solid var(--divider);
    grid-template-rows: auto minmax(0, 1fr) auto;
    align-items: center;
    align-self: stretch;
}

.charts-row .emitter-disc {
    width: clamp(88px, 8.5vw, 132px);
    align-self: center;
}

.charts-row .emitter-preview-values {
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

@media (max-width: 900px) and (min-width: 721px) {
    .charts-row {
        grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.9fr);
    }

    .charts-row .emitter-preview {
        grid-column: 1 / -1;
        height: auto;
        grid-template-columns: auto 110px minmax(0, 1fr);
        grid-template-rows: auto;
        justify-items: start;
    }

    .charts-row .emitter-disc {
        width: 84px;
        justify-self: center;
    }

    .charts-row .emitter-preview-values {
        align-items: flex-start;
        justify-self: end;
    }
}

/* Current-colour controls and chart-side circadian plan. */
.charts-row {
    grid-template-columns: minmax(360px, 1.35fr) minmax(250px, 0.78fr) minmax(180px, 0.46fr) minmax(290px, 0.72fr);
    align-items: stretch;
}

.charts-row > .tuning-group-health {
    min-width: 0;
    margin: 0;
    padding: 14px;
    align-self: stretch;
    border: 1px solid var(--divider);
    border-radius: 8px;
    background: var(--surface-primary);
}

.charts-row > .tuning-group-health .health-condition-grid {
    grid-template-columns: 1fr;
    gap: 8px;
}

.charts-row > .tuning-group-health .preset-action-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.charts-row > .tuning-group-health .schedule-stage-list {
    max-height: 188px;
    overflow-y: auto;
}

.charts-row > .tuning-group-health .optimizer-action-stack {
    grid-template-columns: 1fr;
}

.emitter-metamer-controls {
    width: calc(100% + 32px);
    margin: 14px -16px -16px;
    padding: 12px 16px 14px;
    box-sizing: border-box;
    border-top: 1px solid var(--divider);
    background: var(--surface-secondary);
}

.emitter-metamer-controls .metamer-profile-heading {
    margin-bottom: 8px;
}

.emitter-metamer-controls .metamer-profile-options {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    min-height: 42px;
    gap: 6px;
    padding: 3px;
}

.metamer-profile-button {
    min-width: 0;
    height: 36px;
    padding: 0 8px;
    border: 1px solid transparent;
    border-radius: 5px;
    color: var(--text-secondary);
    background: transparent;
    font: inherit;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transform: none !important;
}

.metamer-profile-button.is-selected {
    color: var(--action);
    border-color: rgba(0, 113, 227, 0.32);
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 92, 184, 0.14);
}

.emitter-metamer-controls .metamer-status,
.emitter-metamer-controls .metamer-colour-delta {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 0.68rem;
    line-height: 1.45;
}

.emitter-metamer-controls .metamer-colour-delta:empty {
    display: none;
}

.emitter-metamer-controls .metamer-colour-delta.outside-tolerance {
    color: #b54708;
}

.quality-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

@media (max-width: 1450px) {
    .charts-row {
        grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.9fr) minmax(180px, 0.55fr);
    }

    .charts-row > .tuning-group-health {
        grid-column: 1 / -1;
    }
}

@media (max-width: 1180px) {
    .quality-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .charts-row {
        grid-template-columns: 1fr;
    }

    .charts-row > .tuning-group-health {
        grid-column: auto;
    }

    .quality-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Final component geometry overrides legacy responsive declarations. */
.pastel-palette-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metamer-profile-options {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    min-height: 44px;
    border-color: rgba(0, 113, 227, 0.24);
    background: rgba(0, 113, 227, 0.055);
}

.metamer-profile-options label {
    height: 38px;
    min-height: 38px;
    box-sizing: border-box;
    border: 1px solid transparent;
    font-weight: 600;
    transform: none !important;
}

.metamer-profile-options label:has(input:checked) {
    color: var(--action);
    border-color: rgba(0, 113, 227, 0.32);
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 92, 184, 0.14);
}

.metrics-workspace {
    grid-template-areas:
        "quality health"
        "samples samples";
}

.metrics-workspace > .tuning-group-health {
    grid-area: circadian;
    width: 100%;
    box-sizing: border-box;
}

.color-samples-grid {
    align-items: stretch;
}

.tcs-bars,
.ces-vector-wrap {
    height: clamp(320px, 28vw, 410px);
    min-height: 320px;
    box-sizing: border-box;
}

.ces-vector-graphic {
    width: auto;
    height: 100%;
    max-width: 100%;
}

@media (max-width: 720px) {
    .tcs-bars,
    .ces-vector-wrap {
        height: 340px;
        min-height: 340px;
    }
}

@media (max-width: 1180px) {
    #app-main {
        grid-template-columns: 1fr;
    }
}

/* Authoritative workspace layout. Keep this block last. */
.charts-row {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(340px, 1fr);
    grid-template-areas:
        "spd cie"
        "combo combo";
    gap: 14px;
    align-items: start;
}

.charts-row > .spd-panel {
    grid-area: spd;
}

.charts-row > .cie-panel {
    grid-area: cie;
}

.charts-row > .emitter-preview {
    grid-area: combo;
    display: grid;
    grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.8fr);
    grid-template-rows: auto minmax(0, 1fr) auto;
    column-gap: 18px;
    width: 100%;
    box-sizing: border-box;
    align-items: stretch;
}

.charts-row > .emitter-preview > .emitter-preview-heading {
    grid-column: 1;
    grid-row: 1;
}

.charts-row > .emitter-preview > .emitter-preview-stage {
    grid-column: 1;
    grid-row: 2;
    width: 100%;
    min-height: 210px;
    margin-top: 12px;
    aspect-ratio: auto;
    flex-direction: row;
    box-sizing: border-box;
}

.charts-row > .emitter-preview > .emitter-metamer-controls {
    grid-column: 1;
    grid-row: 3;
}

.charts-row > .emitter-preview > .tuning-group-health {
    grid-column: 2;
    grid-row: 1 / 4;
    min-width: 0;
    width: 100%;
    margin: 0;
    padding: 0 0 0 18px;
    border: 0;
    border-left: 1px solid var(--divider);
    border-radius: 0;
    background: transparent;
    box-sizing: border-box;
    align-self: stretch;
}

.charts-row > .emitter-preview .health-condition-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.charts-row > .emitter-preview .preset-action-container,
.charts-row > .emitter-preview .schedule-mode-panel {
    width: 100%;
    box-sizing: border-box;
}

.charts-row > .emitter-preview .schedule-stage-list {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
    width: 100%;
    max-height: none;
    overflow: visible;
}

.charts-row > .emitter-preview .schedule-stage-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 28px;
    grid-template-rows: auto auto;
    gap: 5px;
    min-width: 0;
}

.charts-row > .emitter-preview .schedule-stage-row input[type="time"] {
    grid-column: 1;
    grid-row: 1;
    width: 100%;
    min-width: 0;
}

.charts-row > .emitter-preview .schedule-stage-label {
    grid-column: 1;
    grid-row: 2;
    min-width: 0;
}

.charts-row > .emitter-preview .schedule-preview-btn {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
}

@media (max-width: 1000px) {
    .charts-row {
        grid-template-columns: 1fr;
        grid-template-areas:
            "spd"
            "cie"
            "combo";
    }

    .charts-row > .emitter-preview {
        grid-template-columns: 1fr;
    }

    .charts-row > .emitter-preview > .emitter-preview-heading,
    .charts-row > .emitter-preview > .emitter-preview-stage,
    .charts-row > .emitter-preview > .emitter-metamer-controls,
    .charts-row > .emitter-preview > .tuning-group-health {
        grid-column: 1;
        grid-row: auto;
    }

    .charts-row > .emitter-preview > .tuning-group-health {
        margin-top: 14px;
        padding: 14px 0 0;
        border-top: 1px solid var(--divider);
        border-left: 0;
    }
}

@media (max-width: 720px) {
    .charts-row > .emitter-preview .health-condition-grid,
    .charts-row > .emitter-preview .schedule-stage-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .charts-row .emitter-preview {
        height: auto;
        min-height: 190px;
    }
}

/* Keep each functional region content-sized in the unified workspace. */
.controls-panel {
    height: auto !important;
}

.optimizer-functional-grid {
    align-items: start;
}

.tuning-group,
.metric-group-health {
    align-self: start;
}

.metric-group-health {
    grid-row: auto;
}

@media (max-width: 720px) {
    .import-btn {
        min-width: 0;
    }

    .import-btn small {
        white-space: nowrap;
        font-size: 0.68rem;
    }
}

@media (max-width: 1180px) {
    #app-main { grid-template-columns: 1fr; }
    .controls-panel { position: static; }
    .optimizer-functional-grid { grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr); }
    .health-condition-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .pastel-palette-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .metrics-workspace {
        grid-template-columns: 1fr;
        grid-template-areas:
            "quality"
            "health"
            "samples";
    }
    .metric-group-quality,
    .color-samples-panel,
    .metric-group-health { grid-column: 1; grid-row: auto; }
    .health-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
    .page-hero,
    #app-main,
    #app-footer { width: min(100% - 24px, 1600px); }
    .page-hero { min-height: 0; padding: 14px 0 10px; align-items: flex-start; flex-direction: column; gap: 4px; }
    .page-hero-title { width: 100%; flex-wrap: wrap; gap: 3px 10px; }
    .title-brand { max-width: 100%; margin-left: auto; text-align: right; white-space: normal; }
    .page-hero p { text-align: left; }
    .charts-row { grid-template-columns: 1fr; }
    .target-controls,
    .health-condition-grid { grid-template-columns: 1fr; }
    .quality-grid,
    .health-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .optimizer-presets-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .pastel-palette-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .controls-panel,
    .spd-panel,
    .cie-panel,
    .optimizer-section,
    .metric-group,
    .color-samples-panel { padding: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    html:focus-within { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; }
    button,
    .import-btn,
    .preset-btn,
    .opt-preset-btn,
    .journey-icon-btn,
    .export-recipe-btn,
    .schedule-preview-btn,
    .optimizer-mode-panel,
    .metric-bar::after,
    .tcs-bar-fill,
    .pastel-color-card {
        animation: none !important;
        transform: none !important;
        transition-duration: 0.01ms !important;
    }
}

/* Standard colour sample comparison */
.color-samples-panel {
    margin-top: 12px;
    padding: 16px;
}

.color-samples-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 10px;
}

.color-samples-header h2 {
    margin: 0;
    font-size: 1rem;
}

.color-samples-header h2 span,
.color-samples-header p,
.color-samples-note {
    color: var(--text-muted);
}

.color-samples-header h2 span {
    margin-left: 6px;
    font-size: 0.76rem;
    font-weight: 400;
}

.color-samples-header p,
.color-samples-note {
    margin: 4px 0 0;
    font-size: 0.72rem;
    line-height: 1.45;
}

.color-samples-controls {
    display: inline-flex;
    flex: 0 0 auto;
    gap: 4px;
    padding: 3px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.48);
}

.color-samples-controls label {
    position: relative;
    padding: 6px 10px;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.74rem;
    white-space: nowrap;
}

.color-samples-controls label:has(input:checked) {
    color: var(--text-primary);
    background: #fff;
    box-shadow: 0 1px 3px rgba(42, 37, 30, 0.12);
}

.color-samples-controls input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.color-samples-legend {
    display: flex;
    justify-content: flex-end;
    gap: 14px;
    margin-bottom: 7px;
    color: var(--text-muted);
    font-size: 0.67rem;
}

.color-samples-legend span::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 5px;
    border: 1px solid rgba(42, 37, 30, 0.2);
    vertical-align: -1px;
}

.color-samples-legend span:last-child::before {
    border-style: dashed;
}

.color-samples-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.tcs-bars {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 5px;
    justify-content: center;
}

.tcs-ra-summary {
    margin: 0 0 5px 36px;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.78rem;
}

.tcs-bar-row {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) 34px;
    gap: 8px;
    align-items: center;
    min-width: 0;
}

.tcs-bar-name,
.tcs-bar-value {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.7rem;
}

.tcs-bar-value {
    text-align: right;
}

.tcs-bar-track {
    height: 11px;
    overflow: hidden;
    border-radius: 2px;
    background:
        repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), rgba(42,37,30,0.14) calc(10% - 1px) 10%),
        #e4dfd7;
}

.tcs-bar-fill {
    display: block;
    height: 100%;
    background: #8dbf62;
}

.tcs-bar-fill.is-low {
    filter: saturate(1.15);
}

.tcs-axis {
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    margin: 0 34px 0 36px;
    color: var(--text-muted);
    font-family: "JetBrains Mono", monospace;
    font-size: 0.58rem;
}

.tcs-axis span {
    transform: translateX(-50%);
    text-align: center;
}

.tcs-axis span:last-child {
    transform: translateX(50%);
}

.ces-vector-wrap {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

.ces-vector-graphic {
    position: relative;
    width: min(100%, 520px);
    aspect-ratio: 1;
    overflow: hidden;
    border: 1px solid rgba(42, 37, 30, 0.14);
    border-radius: 6px;
    background:
        radial-gradient(circle, rgba(255,255,255,0.94) 0 17%, rgba(255,255,255,0.58) 47%, rgba(255,255,255,0.12) 74%),
        conic-gradient(from 90deg, #ef7373, #f3aa6b, #e7dc78, #a9dc75, #68cf9c, #63c9d4, #719ce0, #9b83d4, #cf78bf, #ef7373);
}

.ces-vector-graphic svg {
    display: block;
    width: 100%;
    height: 100%;
}

.ces-vector-summary {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.7rem;
    line-height: 1.7;
}

.ces-corner-metric {
    position: absolute;
    display: flex;
    color: #231f1b;
    flex-direction: column;
    line-height: 1;
}

.ces-corner-metric strong {
    font-family: "JetBrains Mono", monospace;
    font-size: clamp(1rem, 3vw, 1.65rem);
}

.ces-corner-metric span {
    margin-top: 4px;
    font-size: 0.7rem;
}

.ces-rf { top: 4%; left: 4%; }
.ces-rg { top: 4%; right: 4%; align-items: flex-end; }
.ces-cct { bottom: 4%; left: 4%; }
.ces-duv { right: 4%; bottom: 4%; align-items: flex-end; }

.color-sample-swatch {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-width: 0;
    height: 54px;
    overflow: hidden;
    border: 1px solid rgba(42, 37, 30, 0.16);
    border-radius: 5px;
    background: #fff;
}

.color-sample-ref,
.color-sample-test {
    min-width: 0;
}

.color-sample-test {
    border-left: 1px dashed rgba(42, 37, 30, 0.42);
}

.color-sample-test.is-unavailable {
    background:
        repeating-linear-gradient(135deg, rgba(42, 37, 30, 0.04) 0 5px, rgba(42, 37, 30, 0.11) 5px 6px),
        #f5f2ec;
}

.color-sample-label {
    position: absolute;
    left: 50%;
    bottom: 3px;
    transform: translateX(-50%);
    padding: 1px 4px;
    border-radius: 3px;
    color: #fff;
    background: rgba(20, 18, 15, 0.66);
    font-family: "JetBrains Mono", monospace;
    font-size: 0.58rem;
    line-height: 1.2;
    white-space: nowrap;
}

.color-samples-empty {
    grid-column: 1 / -1;
    margin: 0;
    padding: 16px;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.76rem;
}

.pastel-fit-status {
    margin: 10px 0 0;
    color: var(--text-secondary);
    font-size: 0.72rem;
}

.pastel-fit-status.is-warning {
    color: #a44c28;
}

.is-pastel-mode .color-samples-legend {
    display: none;
}



.pastel-color-card {
    position: relative;
    display: flex;
    min-width: 0;
    height: 54px;
    padding: 7px;
    border: 1px solid rgba(42, 37, 30, 0.16);
    border-radius: 5px;
    color: #2a251f;
    cursor: pointer;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    font: inherit;
    text-align: left;
    transition: border-color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

.pastel-color-card:hover {
    transform: translateY(-1px);
    border-color: rgba(42, 37, 30, 0.44);
}

.pastel-color-card:focus-visible,
.pastel-color-card.is-selected {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(204, 139, 30, 0.22);
}

.pastel-color-card strong,
.pastel-color-card span {
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.72);
}

.pastel-color-card strong {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.62rem;
}

.pastel-color-card span {
    font-size: 0.68rem;
}

@media (max-width: 720px) {
    .color-samples-header {
        flex-direction: column;
    }

    .color-samples-controls {
        width: 100%;
    }

    .color-samples-controls label {
        flex: 1;
        text-align: center;
    }

    .color-samples-grid {
        grid-template-columns: 1fr;
    }

    .tcs-bar-row { grid-template-columns: 24px minmax(0, 1fr) 30px; gap: 5px; }
    .tcs-axis { margin-right: 30px; margin-left: 29px; }
}

/* Final colour-analysis controls inherit the unified interaction system. */
.color-samples-controls {
    border: 0;
    background: var(--surface-control);
}

.color-samples-controls label:has(input:checked) {
    color: var(--text-primary);
    background: var(--surface);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.14);
}

.pastel-color-card {
    border-color: var(--divider);
    border-radius: 6px;
    transition: color var(--duration-state) var(--ease-out), background-color var(--duration-state) var(--ease-out), border-color var(--duration-state) var(--ease-out), box-shadow var(--duration-state) var(--ease-out), transform var(--duration-press) var(--ease-out);
}

.pastel-color-card:hover {
    transform: none;
    border-color: var(--divider);
}

.pastel-color-card:focus-visible,
.pastel-color-card.is-selected {
    border-color: var(--action);
    box-shadow: 0 0 0 3px var(--action-soft);
}

@media (hover: hover) and (pointer: fine) {
    .pastel-color-card:hover {
        transform: translateY(-1px);
        border-color: rgba(0, 113, 227, 0.28);
    }
}

/* Match the live-colour preview to the SPD and chromaticity panels. */
.charts-row .emitter-preview {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-items: normal;
}

.charts-row .emitter-preview-heading {
    min-height: 23px;
    padding-bottom: 11px;
    border-bottom: 1px solid var(--divider);
}

.charts-row .emitter-preview-heading h3 {
    color: var(--text-primary);
    font-size: 0.98rem;
    font-weight: 650;
}

.emitter-preview-stage {
    min-height: 0;
    margin-top: 12px;
    padding: 14px 10px 12px;
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border: 1px solid var(--divider);
    border-radius: 7px;
    background: #fff;
}

.charts-row .emitter-preview-values {
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

@media (max-width: 900px) and (min-width: 721px) {
    .charts-row .emitter-preview {
        display: flex;
    }

    .charts-row .emitter-preview-stage {
        width: 100%;
        flex-direction: row;
        justify-content: flex-start;
        box-sizing: border-box;
    }
}

/* Proportional chart workspace: shrink the complete group, never one chart. */
.charts-row {
    grid-template-columns:
        minmax(0, 2.22fr)
        minmax(0, 1fr)
        minmax(0, 0.68fr)
        minmax(0, 0.95fr);
    font-size: 0.86rem;
    align-items: start;
}

.charts-row > * {
    min-width: 0;
}

.charts-row .spd-panel,
.charts-row .cie-panel,
.charts-row .emitter-preview,
.charts-row > .tuning-group-health {
    height: auto;
    align-self: start;
    padding: 12px;
}

.charts-row .spd-panel .canvas-wrapper {
    flex: none;
    width: 100%;
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 7.2;
}

.charts-row .cie-panel .canvas-wrapper,
#cie-canvas-wrapper {
    flex: none;
    width: 100%;
    height: auto;
    min-height: 0;
    aspect-ratio: 1 / 1;
}

.charts-row .emitter-preview-stage {
    flex: none;
    width: 100%;
    min-height: 0;
    aspect-ratio: 1 / 1.35;
    box-sizing: border-box;
}

.emitter-metamer-controls {
    width: calc(100% + 24px);
    margin: 12px -12px -12px;
    padding: 10px 12px 12px;
}

@media (max-width: 1450px) {
    #app-main {
        grid-template-columns: 1fr;
    }

    .charts-row {
        grid-template-columns:
            minmax(0, 2.22fr)
            minmax(0, 1fr)
            minmax(0, 0.68fr)
            minmax(0, 0.95fr);
    }

    .charts-row > .tuning-group-health {
        grid-column: auto;
    }
}

@media (max-width: 1000px) {
    .charts-row {
        grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    }

    .charts-row > .tuning-group-health {
        grid-column: auto;
    }
}

@media (max-width: 720px) {
    .charts-row {
        grid-template-columns: 1fr;
    }
}

/* Readable chart composition: two proportional rows instead of four narrow strips. */
.charts-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-areas:
        "spd spd cie"
        "emitter health health";
    align-items: start;
}

.charts-row > .spd-panel { grid-area: spd; }
.charts-row > .cie-panel { grid-area: cie; }
.charts-row > .emitter-preview { grid-area: emitter; }
.charts-row > .tuning-group-health { grid-area: health; }

.quality-grid #card-cct { order: 1; }
.quality-grid #card-delta-uv { order: 2; }
.quality-grid #card-cri { order: 3; }
.quality-grid #card-r9 { order: 4; }
.quality-grid #card-rf { order: 5; }
.quality-grid #card-rg { order: 6; }

.charts-row .emitter-preview-stage {
    aspect-ratio: auto;
    min-height: 210px;
    flex-direction: row;
    gap: 18px;
}

.charts-row .emitter-preview-values {
    align-items: flex-start;
}

.charts-row > .tuning-group-health .health-condition-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.charts-row > .tuning-group-health .preset-action-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 150px;
    align-items: start;
}

.charts-row > .tuning-group-health .schedule-stage-list {
    max-height: 230px;
}

@media (max-width: 1000px) {
    .charts-row {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "spd spd"
            "cie emitter"
            "health health";
    }
}

@media (max-width: 720px) {
    .charts-row {
        grid-template-columns: 1fr;
        grid-template-areas:
            "spd"
            "cie"
            "emitter"
            "health";
    }

    .charts-row > .tuning-group-health .health-condition-grid,
    .charts-row > .tuning-group-health .preset-action-container {
        grid-template-columns: 1fr;
    }
}

.panel-loading-state {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.72rem;
    background: var(--surface-control);
}

.panel-loading-state[hidden] {
    display: none;
}

.local-file-warning {
    width: min(1600px, calc(100% - 40px));
    margin: 12px auto 0;
    padding: 10px 14px;
    border: 1px solid rgba(184, 112, 0, 0.28);
    border-radius: 7px;
    color: #7a4a00;
    background: rgba(255, 183, 77, 0.14);
    font-size: 0.82rem;
    line-height: 1.5;
}

.local-file-warning[hidden] {
    display: none;
}

@media (max-width: 720px) {
    .local-file-warning {
        width: min(100% - 24px, 1600px);
    }
}