.sound-dashboard {
    --tool-blue: var(--color-cyan);
    --tool-blue-soft: color-mix(in srgb, var(--color-cyan) 9%, var(--color-dark-surface));
    --tool-green: var(--color-mint);
    --tool-green-soft: color-mix(in srgb, var(--color-mint) 9%, var(--color-dark-surface));
    --tool-yellow: var(--color-warning);
    --tool-orange: color-mix(in srgb, var(--color-warning) 58%, var(--color-danger));
    --tool-red: var(--color-danger);
    --tool-ink: var(--color-dark-text-primary);
    --tool-muted: var(--color-dark-text-secondary);
    --tool-border: var(--color-dark-border);
    --tool-panel: var(--color-dark-surface-elevated);
    --tool-surface: var(--color-dark-surface);
    overflow: hidden;
    border: 1px solid var(--tool-border);
    border-radius: var(--radius-xl);
    background: var(--tool-surface);
    color: var(--tool-ink);
    box-shadow: 0 14px 34px rgb(0 0 0 / 0.3);
}

.sound-dashboard button,
.sound-dashboard input { font: inherit; }

.sound-dashboard__grid {
    padding: var(--space-6);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-8);
}

.sound-dashboard__measurement,
.sound-dashboard__visuals { min-width: 0; }

.sound-dashboard__measurement {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: var(--space-8);
}

.sound-dashboard__reading-header {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.sound-dashboard__status-icon {
    position: relative;
    width: 8rem;
    height: 8rem;
    flex: 0 0 8rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--color-dark-text-secondary);
}

.sound-dashboard__pulse {
    position: absolute;
    inset: 0;
    border: 7px solid color-mix(in srgb, var(--color-dark-text-primary) 28%, transparent);
    border-radius: inherit;
    pointer-events: none;
}

.sound-dashboard__icon-face {
    width: 3.25rem;
    height: 3.25rem;
    display: grid;
    place-items: center;
}

.sound-dashboard__icon-face svg {
    width: 100%;
    height: 100%;
    fill: none;
    stroke: color-mix(in srgb, var(--color-dark-text-primary) 42%, transparent);
    stroke-linecap: round;
    stroke-width: 2.2;
}

.sound-dashboard__reading-copy { min-width: 0; }

.sound-dashboard__value-row {
    display: flex;
    align-items: baseline;
    color: var(--tool-blue);
    line-height: 0.86;
}

.sound-dashboard__value {
    color: inherit;
    font-family: var(--font-measurement);
    font-size: clamp(4.75rem, 7vw, 6rem);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.055em;
}

.sound-dashboard__unit {
    margin-inline-start: var(--space-2);
    color: var(--tool-muted);
    font-size: var(--text-2xl);
    font-weight: var(--font-weight-semibold);
}

.sound-dashboard__status-text {
    margin-block-start: var(--space-4);
    color: var(--tool-ink);
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--leading-snug);
}

.sound-dashboard__stats {
    margin-block-start: var(--space-2);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    color: var(--tool-muted);
    font-size: var(--text-sm);
}

.sound-dashboard__stats div { display: flex; gap: var(--space-1); }
.sound-dashboard__stats dd { color: var(--tool-blue); font-weight: var(--font-weight-semibold); }
.sound-dashboard__stat--min { color: var(--tool-green) !important; }
.sound-dashboard__stat--max { color: var(--tool-red) !important; }

.sound-dashboard__alignment {
    margin-block-start: var(--space-2);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    color: var(--tool-muted);
    font-size: var(--text-xs);
}

.sound-dashboard__alignment button {
    min-height: 2rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--tool-blue);
    cursor: pointer;
}

.sound-dashboard__alignment button:hover {
    text-decoration: underline;
    text-underline-offset: 0.18em;
}

.sound-dashboard__notice,
.sound-dashboard__tip {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    border: 1px solid;
    border-radius: var(--radius-md);
}

.sound-dashboard__notice {
    margin-block-start: var(--space-8);
    padding: var(--space-3) var(--space-4);
    border-color: color-mix(in srgb, var(--tool-green) 45%, var(--tool-border));
    background: var(--tool-green-soft);
    color: var(--tool-ink);
    font-size: var(--text-sm);
}

.sound-dashboard__notice svg,
.sound-dashboard__tip svg {
    width: 1rem;
    height: 1rem;
    flex: 0 0 auto;
    margin-block-start: 0.16rem;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.6;
}

.sound-dashboard__notice p,
.sound-dashboard__tip p { max-width: none; }
.sound-dashboard__guidance { margin-block-start: var(--space-4); }

.sound-dashboard__tip {
    padding: var(--space-3) var(--space-4);
    border-color: color-mix(in srgb, var(--tool-blue) 38%, var(--tool-border));
    background: var(--tool-blue-soft);
    color: var(--tool-ink);
    font-size: var(--text-sm);
}

.sound-dashboard__tip svg,
.sound-dashboard__tip strong { color: var(--tool-blue); }

.sound-dashboard__note {
    margin-block-start: var(--space-4);
    color: var(--tool-muted);
    font-size: var(--text-xs);
    font-style: italic;
    line-height: 1.55;
}

.sound-dashboard__note strong { color: var(--tool-ink); }

.sound-dashboard__quality {
    margin-block-start: var(--space-4);
    padding-block-start: var(--space-3);
    border-block-start: 1px solid var(--tool-border);
}

.sound-dashboard__quality h3 {
    color: var(--tool-ink);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-bold);
    letter-spacing: var(--tracking-tight);
}

.sound-dashboard__quality dl {
    margin-block-start: var(--space-2);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
}

.sound-dashboard__quality dl div {
    min-width: 0;
    display: grid;
    gap: 0.125rem;
}

.sound-dashboard__quality dt {
    color: var(--tool-muted);
    font-size: 0.6875rem;
}

.sound-dashboard__quality dd {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--tool-ink);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    font-variant-numeric: tabular-nums;
}

.sound-dashboard__quality-dot {
    width: 0.45rem;
    height: 0.45rem;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--tool-yellow);
}

.sound-dashboard[data-signal="good"] .sound-dashboard__quality-dot { background: var(--tool-green); }
.sound-dashboard[data-signal="clipping"] .sound-dashboard__quality-dot { background: var(--tool-red); }

.sound-dashboard__measurement-footer {
    display: grid;
    gap: var(--space-4);
}

.sound-dashboard__controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.sound-dashboard__start,
.sound-dashboard__save {
    min-height: 3.625rem;
    padding-inline: var(--space-4);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
}

.sound-dashboard__start {
    background: var(--tool-blue);
    color: var(--color-dark-background);
    box-shadow: 0 5px 12px color-mix(in srgb, var(--tool-blue) 22%, transparent);
}

.sound-dashboard__start:hover:not(:disabled) { filter: brightness(0.92); }

.sound-dashboard[data-state="running"] .sound-dashboard__start {
    background: var(--tool-red);
    color: var(--color-dark-text-primary);
    box-shadow: 0 5px 12px color-mix(in srgb, var(--tool-red) 22%, transparent);
}

.sound-dashboard[data-state="running"] .sound-dashboard__start:hover:not(:disabled) { filter: brightness(0.92); }

.sound-dashboard__save {
    border-color: var(--tool-border);
    background: var(--tool-panel);
    color: var(--tool-ink);
    box-shadow: 0 2px 5px rgb(0 0 0 / 0.16);
}

.sound-dashboard__save svg {
    width: 1.2rem;
    height: 1.2rem;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.sound-dashboard__save:hover:not(:disabled) { border-color: var(--tool-blue); background: var(--tool-surface); }
.sound-dashboard button:disabled { cursor: not-allowed; opacity: 0.5; }

.sound-dashboard__visuals {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-4);
}

.sound-dashboard__chart {
    min-height: 14rem;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--tool-border);
    border-radius: var(--radius-lg);
    background: var(--tool-panel);
}

.sound-dashboard__chart figcaption {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--tool-muted);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
}

.sound-dashboard__chart figcaption svg {
    width: 1rem;
    height: 1rem;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.3;
}

.sound-dashboard__canvas-wrap { min-height: 0; flex: 1; margin-block-start: var(--space-3); }
.sound-dashboard canvas { width: 100%; height: 100%; display: block; }

.sound-dashboard__scale {
    position: relative;
    height: 3.75rem;
    margin-block-start: var(--space-1);
    color: var(--tool-muted);
    font-size: 0.625rem;
}

.sound-dashboard__scale-numbers,
.sound-dashboard__scale-labels { position: relative; height: 1.25rem; }

.sound-dashboard__scale-numbers span,
.sound-dashboard__scale-labels span {
    position: absolute;
    inset-inline-start: var(--scale-position);
    white-space: nowrap;
    transform: translateX(-50%);
}

.sound-dashboard__scale-numbers span:first-child,
.sound-dashboard__scale-labels span:first-child { transform: none; }
.sound-dashboard__scale-numbers span:last-child,
.sound-dashboard__scale-labels span:last-child { transform: translateX(-100%); }

.sound-dashboard__scale-track {
    height: 0.55rem;
    overflow: hidden;
    border-radius: var(--radius-pill);
    background: var(--tool-border);
}

.sound-dashboard__scale-track span {
    width: 0;
    height: 100%;
    display: block;
    border-radius: inherit;
    background: var(--tool-green);
}

.sound-dashboard[data-state="running"] .sound-dashboard__scale-track span {
    transition: width 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.sound-dashboard[data-level="safe"] .sound-dashboard__scale-track span { background: var(--tool-blue); }
.sound-dashboard[data-level="limit"] .sound-dashboard__scale-track span { background: var(--tool-yellow); }
.sound-dashboard[data-level="harmful"] .sound-dashboard__scale-track span { background: var(--tool-orange); }
.sound-dashboard[data-level="danger"] .sound-dashboard__scale-track span { background: var(--tool-red); }

.sound-dashboard__scale-labels { margin-block-start: var(--space-1); }
.sound-dashboard__scale-labels .is-quiet { color: var(--tool-green); }
.sound-dashboard__scale-labels .is-safe { color: var(--tool-blue); }
.sound-dashboard__scale-labels .is-limit { color: var(--tool-yellow); }
.sound-dashboard__scale-labels .is-harmful { color: var(--tool-orange); }
.sound-dashboard__scale-labels .is-danger { color: var(--tool-red); }

.sound-dashboard[data-level="quiet"] .sound-dashboard__status-icon { background: var(--tool-green); }
.sound-dashboard[data-level="safe"] .sound-dashboard__status-icon { background: var(--tool-blue); }
.sound-dashboard[data-level="limit"] .sound-dashboard__status-icon { background: var(--tool-yellow); }
.sound-dashboard[data-level="harmful"] .sound-dashboard__status-icon { background: var(--tool-orange); }
.sound-dashboard[data-level="danger"] .sound-dashboard__status-icon { background: var(--tool-red); }
.sound-dashboard[data-level="quiet"] .sound-dashboard__value { color: var(--tool-green); }
.sound-dashboard[data-level="safe"] .sound-dashboard__value { color: var(--tool-blue); }
.sound-dashboard[data-level="limit"] .sound-dashboard__value { color: var(--tool-yellow); }
.sound-dashboard[data-level="harmful"] .sound-dashboard__value { color: var(--tool-orange); }
.sound-dashboard[data-level="danger"] .sound-dashboard__value { color: var(--tool-red); }
.sound-dashboard[data-state="running"] .sound-dashboard__pulse { animation: dashboard-pulse 1.8s ease-out infinite; }

.sound-dashboard[data-notice="safe"] .sound-dashboard__notice { border-color: color-mix(in srgb, var(--tool-green) 45%, var(--tool-border)); background: var(--tool-green-soft); color: var(--tool-ink); }
.sound-dashboard[data-notice="caution"] .sound-dashboard__notice { border-color: color-mix(in srgb, var(--tool-yellow) 45%, var(--tool-border)); background: color-mix(in srgb, var(--tool-yellow) 9%, var(--tool-surface)); color: var(--tool-ink); }
.sound-dashboard[data-notice="danger"] .sound-dashboard__notice,
.sound-dashboard[data-notice="error"] .sound-dashboard__notice { border-color: color-mix(in srgb, var(--tool-red) 45%, var(--tool-border)); background: color-mix(in srgb, var(--tool-red) 9%, var(--tool-surface)); color: var(--tool-ink); }

.calibration-modal[hidden] { display: none; }
.calibration-modal { position: fixed; z-index: 1000; inset: 0; padding: var(--space-4); display: grid; place-items: center; }
.calibration-modal__backdrop { position: absolute; inset: 0; border: 0; background: rgb(0 0 0 / 0.72); cursor: default; }
.calibration-modal__dialog {
    position: relative;
    width: min(100%, 34rem);
    max-height: calc(100dvh - var(--space-8));
    overflow-y: auto;
    padding: var(--space-6);
    border: 1px solid var(--color-dark-border);
    border-radius: var(--radius-lg);
    background: var(--color-dark-surface);
    color: var(--color-dark-text-primary);
    box-shadow: 0 24px 64px rgb(0 0 0 / 0.42);
}

.calibration-modal__header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); }
.calibration-modal__header h2 { max-width: none; color: var(--color-dark-text-primary); font-family: var(--font-display); font-size: var(--text-xl); font-weight: var(--font-weight-extrabold); letter-spacing: var(--tracking-tight); }
.calibration-modal__header h2 span { color: var(--color-dark-text-secondary); font-size: var(--text-sm); font-weight: var(--font-weight-regular); }
.calibration-modal__header p { margin-block-start: var(--space-2); color: var(--color-dark-text-secondary); font-size: var(--text-sm); }
.calibration-modal__close { width: 2.75rem; height: 2.75rem; flex: 0 0 auto; display: grid; place-items: center; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--color-dark-text-secondary); cursor: pointer; }
.calibration-modal__close:hover { background: var(--color-dark-surface-elevated); }
.calibration-modal__close svg { width: 1.25rem; fill: none; stroke: currentColor; stroke-linecap: round; stroke-width: 1.8; }
.calibration-modal__reading { margin-block-start: var(--space-6); padding: var(--space-4); display: grid; gap: var(--space-2); border: 1px solid color-mix(in srgb, var(--color-cyan) 30%, var(--color-dark-border)); border-radius: var(--radius-md); background: color-mix(in srgb, var(--color-cyan) 7%, var(--color-dark-surface)); }
.calibration-modal__reading p { color: var(--color-dark-text-secondary); font-size: var(--text-sm); }
.calibration-modal__reading p:last-child { font-size: var(--text-xs); }
.calibration-modal__reading label { margin-block-start: var(--space-2); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.calibration-modal__reading input { min-height: 2.75rem; padding-inline: var(--space-3); border: 1px solid var(--color-dark-border); border-radius: var(--radius-sm); background: var(--color-dark-background); color: var(--color-dark-text-primary); }
.calibration-modal__reading input:invalid:not(:placeholder-shown) { border-color: var(--tool-red); }
.calibration-modal__message { min-height: 1.25rem; margin-block-start: var(--space-3); color: var(--color-danger); font-size: var(--text-sm); }
.calibration-modal__explanation { margin-block-start: var(--space-2); display: grid; gap: var(--space-2); color: var(--color-dark-text-secondary); font-size: var(--text-sm); }
.calibration-modal__actions { margin-block-start: var(--space-6); display: flex; justify-content: flex-end; gap: var(--space-3); }
.calibration-modal__save,
.calibration-modal__reset { min-height: 2.75rem; padding-inline: var(--space-4); border-radius: var(--radius-sm); font-weight: var(--font-weight-semibold); cursor: pointer; }
.calibration-modal__save { border: 1px solid var(--tool-blue); background: var(--tool-blue); color: var(--color-dark-background); }
.calibration-modal__reset { border: 1px solid var(--color-dark-border); background: var(--color-dark-surface-elevated); color: var(--color-dark-text-primary); }
.calibration-modal button:disabled { cursor: not-allowed; opacity: 0.5; }

@media (max-width: 64rem) {
    .sound-dashboard__grid { grid-template-columns: 1fr; gap: var(--space-6); }
    .sound-dashboard__measurement { min-height: 32rem; }
    .sound-dashboard__visuals { grid-template-columns: 1fr 1fr; grid-template-rows: 14rem; }
}

@media (max-width: 42rem) {
    .meter-page__inner { width: 100%; }
    .sound-dashboard__grid { padding: var(--space-4); }
    .sound-dashboard__measurement { min-height: 0; }
    .sound-dashboard__reading-header { align-items: flex-start; gap: var(--space-4); }
    .sound-dashboard__status-icon { width: 4.75rem; height: 4.75rem; flex-basis: 4.75rem; }
    .sound-dashboard__pulse { border-width: 4px; }
    .sound-dashboard__icon-face { width: 2.25rem; height: 2.25rem; }
    .sound-dashboard__value { font-size: clamp(3.6rem, 18vw, 5rem); }
    .sound-dashboard__unit { font-size: var(--text-xl); }
    .sound-dashboard__status-text { margin-block-start: var(--space-3); font-size: var(--text-lg); }
    .sound-dashboard__notice { margin-block-start: var(--space-6); }
    .sound-dashboard__controls { grid-template-columns: 1fr; }
    .sound-dashboard__visuals { grid-template-columns: 1fr; grid-template-rows: repeat(2, minmax(14rem, auto)); }
    .sound-dashboard__scale { overflow-x: auto; height: 4.25rem; padding-block-end: var(--space-2); scrollbar-width: thin; }
    .sound-dashboard__scale > * { min-width: 32rem; }
    .calibration-modal__dialog { padding: var(--space-4); }
    .calibration-modal__actions { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (max-width: 25rem) {
    .sound-dashboard__status-icon { width: 4rem; height: 4rem; flex-basis: 4rem; }
    .sound-dashboard__value { font-size: 3.35rem; }
    .sound-dashboard__reading-header { gap: var(--space-3); }
}

@keyframes dashboard-pulse {
    0% { transform: scale(1); opacity: 0.72; }
    72%, 100% { transform: scale(1.22); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .sound-dashboard[data-state="running"] .sound-dashboard__pulse { animation: none; }
    .sound-dashboard[data-state="running"] .sound-dashboard__scale-track span { transition: none; }
}