/* Quasicrystal Diffraction Observatory — dedicated chamber styles */
.qc-app {
    --qc-ink: #ecf4ff;
    --qc-muted: #91a7c1;
    --qc-dim: #6d8098;
    --qc-line: rgba(150, 187, 224, .22);
    --qc-line-strong: rgba(150, 213, 255, .44);
    --qc-blue: #79c9ff;
    --qc-cyan: #7ee9dc;
    --qc-violet: #bda5ff;
    --qc-amber: #ffc878;
    --qc-panel: rgba(8, 19, 35, .76);
    color: var(--qc-ink);
}
.qc-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.48fr) minmax(300px, .82fr);
    gap: 18px;
    align-items: start;
}
.qc-stage,
.qc-controls,
.qc-readouts,
.qc-diagnostics,
.qc-notes article,
.qc-formula-wrap > *,
.qc-guide {
    background: var(--qc-panel);
    border: 1px solid var(--qc-line);
    box-shadow: 0 18px 48px rgba(0, 0, 0, .2);
}
.qc-stage { min-width: 0; overflow: hidden; }
.qc-stage__head,
.qc-card-head,
.qc-control-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}
.qc-stage__head { padding: 22px 22px 16px; }
.qc-stage__head h2,
.qc-card-head h2,
.qc-notes h2,
.qc-guide h2 {
    margin: 4px 0 8px;
    color: var(--qc-ink);
    font-size: clamp(1.12rem, 2.2vw, 1.55rem);
    line-height: 1.22;
}
.qc-stage__head p:not(.eyebrow):not(.qc-route-chip) {
    max-width: 690px;
    margin: 0;
    color: var(--qc-muted);
    line-height: 1.6;
}
.qc-route-chip {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    margin: 0 0 10px;
    padding: 4px 8px;
    border: 1px solid var(--qc-line-strong);
    color: var(--qc-cyan);
    font: 700 .68rem/1.2 var(--font-mono, monospace);
    letter-spacing: .12em;
}
.qc-state-badge,
.qc-validity-badge,
.qc-diagnostics-badge {
    flex: 0 0 auto;
    padding: 7px 9px;
    border: 1px solid var(--qc-line-strong);
    color: var(--qc-cyan);
    font: 700 .68rem/1.2 var(--font-mono, monospace);
    letter-spacing: .08em;
}
.qc-canvas-frame {
    position: relative;
    border-top: 1px solid var(--qc-line);
    border-bottom: 1px solid var(--qc-line);
    background: #071220;
}
#qcCanvas {
    display: block;
    width: 100%;
    height: auto;
    min-height: 0;
    background: #071220;
    outline: none;
    cursor: crosshair;
}
#qcCanvas:focus-visible { box-shadow: inset 0 0 0 3px var(--qc-amber); }
.qc-canvas-legend {
    position: absolute;
    right: 13px;
    bottom: 11px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
    color: #c9d9ea;
    font: .67rem/1.2 var(--font-mono, monospace);
    pointer-events: none;
}
.qc-canvas-legend span { display: inline-flex; align-items: center; gap: 5px; }
.qc-canvas-legend i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.qc-legend-point { background: var(--qc-blue); }
.qc-legend-local { background: var(--qc-cyan); }
.qc-legend-peak { background: var(--qc-amber); }
.qc-canvas-fallback {
    margin: 14px 18px 0;
    padding: 12px 14px;
    border: 1px solid rgba(255, 200, 120, .48);
    color: #f4d5a5;
    background: rgba(72, 45, 18, .26);
}
.qc-canvas-fallback strong { display: block; margin-bottom: 4px; color: var(--qc-amber); }
.qc-canvas-fallback p { margin: 0 0 6px; }
#qcFallbackSummary { color: #d7e5f3; font: .76rem/1.55 var(--font-mono, monospace); }
.qc-canvas-help,
.qc-live { padding: 0 18px; color: var(--qc-muted); font-size: .78rem; line-height: 1.55; }
.qc-live { min-height: 1.4em; color: var(--qc-cyan); font-family: var(--font-mono, monospace); }
.qc-metric-grid,
.qc-readout-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    margin: 0;
    border-top: 1px solid var(--qc-line);
    background: var(--qc-line);
}
.qc-metric-grid > div,
.qc-readout-grid > div { min-width: 0; padding: 12px 13px; background: rgba(5, 16, 30, .86); }
.qc-metric-grid dt,
.qc-readout-grid dt {
    margin-bottom: 5px;
    color: var(--qc-dim);
    font: .63rem/1.25 var(--font-mono, monospace);
    letter-spacing: .05em;
    text-transform: uppercase;
}
.qc-metric-grid dd,
.qc-readout-grid dd {
    margin: 0;
    color: var(--qc-ink);
    font: 700 .9rem/1.2 var(--font-mono, monospace);
    overflow-wrap: anywhere;
}
.qc-controls { padding: 18px; }
.qc-control-head { align-items: center; margin-bottom: 14px; }
.qc-control-head h2 { margin: 3px 0 0; font-size: 1.15rem; }
.qc-control-readout { color: var(--qc-cyan); font: 700 .7rem/1.2 var(--font-mono, monospace); letter-spacing: .06em; }
.qc-status { margin: 0 0 15px; padding: 11px 12px; border: 1px solid var(--qc-line); background: rgba(18, 37, 60, .58); }
.qc-status > p { margin: 0 0 8px; color: var(--qc-dim); font: 700 .65rem/1.2 var(--font-mono, monospace); letter-spacing: .12em; }
.qc-status dl { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; margin: 0; }
.qc-status dt { color: var(--qc-dim); font: .62rem/1.2 var(--font-mono, monospace); }
.qc-status dd { margin: 2px 0 0; color: var(--qc-ink); font: 700 .77rem/1.2 var(--font-mono, monospace); }
.qc-control-group { padding: 14px 0; border-top: 1px solid var(--qc-line); }
.qc-control-group:first-of-type { border-top: 0; }
.qc-section-heading { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 9px; }
.qc-section-heading h3,
.qc-shortcut-note h3 { margin: 0; color: var(--qc-ink); font: 700 .73rem/1.2 var(--font-mono, monospace); letter-spacing: .1em; }
.qc-section-heading span { color: var(--qc-muted); font: .72rem/1.2 var(--font-mono, monospace); }
.qc-segmented { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.qc-segmented button,
.qc-action-grid button,
.qc-output-row button,
#qcRunDiagnostics {
    min-height: 44px;
    border: 1px solid var(--qc-line-strong);
    border-radius: 0;
    background: rgba(13, 31, 52, .9);
    color: var(--qc-ink);
    font: 700 .69rem/1.2 var(--font-mono, monospace);
    letter-spacing: .04em;
    cursor: pointer;
}
.qc-segmented button:hover,
.qc-action-grid button:hover,
.qc-output-row button:hover,
#qcRunDiagnostics:hover { border-color: var(--qc-cyan); }
.qc-segmented button.is-active { border-color: var(--qc-cyan); background: rgba(46, 118, 133, .34); color: #e6ffff; }
.qc-segmented button:focus-visible,
.qc-action-grid button:focus-visible,
.qc-output-row button:focus-visible,
#qcRunDiagnostics:focus-visible,
.qc-range input:focus-visible,
.qc-guide a:focus-visible { outline: 3px solid var(--qc-amber); outline-offset: 2px; }
.qc-range { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 9px 12px; }
.qc-range + .qc-range { margin-top: 14px; }
.qc-range label { color: var(--qc-muted); font-size: .78rem; }
.qc-range output { min-width: 52px; color: var(--qc-cyan); text-align: right; font: 700 .77rem/1.2 var(--font-mono, monospace); }
.qc-range input { grid-column: 1 / -1; width: 100%; min-height: 28px; accent-color: var(--qc-cyan); }
.qc-action-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; }
.qc-action-grid .primary-control { border-color: var(--qc-cyan); color: var(--qc-cyan); }
.qc-control-help { margin: 9px 0 0; color: var(--qc-dim); font-size: .74rem; line-height: 1.5; }
.qc-shortcut-note { margin-top: 5px; padding: 12px; border: 1px dashed var(--qc-line-strong); }
.qc-shortcut-note p { margin: 8px 0 0; color: var(--qc-muted); font-size: .72rem; line-height: 1.55; }
.qc-shortcut-note kbd { display: inline-block; padding: 2px 5px; border: 1px solid var(--qc-line-strong); color: var(--qc-ink); font: .68rem/1 var(--font-mono, monospace); }
.qc-results { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; margin-top: 18px; }
.qc-readouts,
.qc-diagnostics { min-width: 0; }
.qc-card-head { align-items: center; padding: 18px 18px 13px; }
.qc-card-head h2 { margin-bottom: 0; font-size: 1.12rem; }
.qc-card-head > span { flex: 0 0 auto; color: var(--qc-cyan); font: 700 .68rem/1.2 var(--font-mono, monospace); }
.qc-readout-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.qc-readout-grid .is-wide { grid-column: 1 / -1; }
.qc-readout-note,
.qc-test-case { margin: 0; padding: 13px 18px 17px; color: var(--qc-muted); font-size: .76rem; line-height: 1.55; }
.qc-test-case { padding-top: 0; color: var(--qc-cyan); font-family: var(--font-mono, monospace); }
.qc-table-wrap { overflow-x: auto; margin: 0 18px 14px; border: 1px solid var(--qc-line); }
.qc-table-wrap table { width: 100%; min-width: 410px; border-collapse: collapse; font: .72rem/1.3 var(--font-mono, monospace); }
.qc-table-wrap th,
.qc-table-wrap td { padding: 8px 9px; border-bottom: 1px solid var(--qc-line); text-align: left; }
.qc-table-wrap tr:last-child td { border-bottom: 0; }
.qc-table-wrap th { color: var(--qc-dim); font-size: .63rem; letter-spacing: .07em; }
.qc-table-wrap td { color: var(--qc-ink); }
.qc-table-wrap td:last-child { color: var(--qc-cyan); text-align: right; }
#qcRunDiagnostics { width: calc(100% - 36px); margin: 0 18px 10px; }
.qc-output-row { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin: 0 18px 15px; }
.qc-report-details { margin: 0 18px 18px; border-top: 1px solid var(--qc-line); }
.qc-report-details summary { padding-top: 12px; color: var(--qc-muted); cursor: pointer; font-size: .76rem; }
#qcReportOutput { max-height: 230px; overflow: auto; margin: 10px 0 0; padding: 12px; border: 1px solid var(--qc-line); color: #cfe6f5; background: rgba(3, 11, 21, .8); white-space: pre-wrap; font: .69rem/1.5 var(--font-mono, monospace); }
.qc-notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.qc-notes article { padding: 18px; }
.qc-notes article p,
.qc-notes li,
.qc-guide p,
.qc-guide li { color: var(--qc-muted); font-size: .79rem; line-height: 1.65; }
.qc-notes article p:last-child { margin-bottom: 0; }
.qc-notes ul,
.qc-guide ul { margin: 0; padding-left: 1.15rem; }
.qc-formula-wrap { display: grid; grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: 18px; margin-top: 18px; }
.qc-formula-wrap > * { min-width: 0; }
.qc-formula-note { padding: 16px 18px; }
.qc-formula-note summary { color: var(--qc-ink); cursor: pointer; font: 700 .78rem/1.2 var(--font-mono, monospace); }
.qc-formula-note p { color: var(--qc-muted); font-size: .78rem; line-height: 1.65; }
.qc-formula-note code,
.qc-notes code,
.qc-control-help code { color: var(--qc-cyan); font-family: var(--font-mono, monospace); }
.qc-guide { padding: 18px; }
.qc-guide__note { color: var(--qc-amber) !important; }
.qc-guide__local { color: var(--qc-cyan) !important; font-family: var(--font-mono, monospace); }
.qc-lower-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.qc-lower-grid > * { min-width: 0; }
.qc-app + .qc-lower-grid { margin-bottom: 18px; }
@media (max-width: 980px) {
    .qc-layout,
    .qc-results,
    .qc-formula-wrap { grid-template-columns: 1fr; }
    .qc-notes,
    .qc-lower-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
    .qc-stage__head,
    .qc-card-head { flex-direction: column; gap: 10px; }
    .qc-controls { padding: 15px; }
    .qc-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .qc-readout-grid { grid-template-columns: 1fr 1fr; }
    .qc-notes,
    .qc-lower-grid { grid-template-columns: 1fr; }
    .qc-stage__head { padding: 17px 15px 13px; }
    .qc-canvas-help,
    .qc-live { padding-left: 15px; padding-right: 15px; }
    .qc-canvas-legend { right: 8px; bottom: 7px; gap: 5px 8px; font-size: .61rem; }
    .qc-table-wrap { margin-left: 15px; margin-right: 15px; }
    #qcRunDiagnostics { width: calc(100% - 30px); margin-left: 15px; margin-right: 15px; }
    .qc-output-row,
    .qc-report-details { margin-left: 15px; margin-right: 15px; }
}
@media (prefers-reduced-motion: reduce) {
    .qc-app *,
    .qc-app *::before,
    .qc-app *::after {
        transition-duration: 0.001ms !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
}