.spectrum-page {
    --spectrum-ink-soft: #9aacb6;
    --spectrum-grid: #1d2b33;
    --spectrum-panel: #0a0f13;
    --spectrum-panel-raised: #10171d;
    --spectrum-line: #25333d;
    accent-color: var(--color-mint);
}

.spectrum-page input,
.spectrum-page select,
.spectrum-page button {
    font: inherit;
}

.spectrum-page button,
.spectrum-page summary,
.spectrum-page label {
    -webkit-tap-highlight-color: transparent;
}

.spectrum-page button:not(:disabled),
.spectrum-page summary,
.spectrum-page input[type="range"],
.spectrum-page input[type="file"],
.spectrum-page select {
    cursor: pointer;
}

.spectrum-page button:disabled {
    cursor: not-allowed;
    opacity: 0.44;
}

.spectrum-hero {
    padding: clamp(4.5rem, 8vw, 7rem) 0 clamp(2.5rem, 5vw, 4.25rem);
    overflow: hidden;
}

.spectrum-hero__inner {
    position: relative;
}

.spectrum-hero__inner::after {
    position: absolute;
    z-index: -1;
    width: 29rem;
    height: 20rem;
    inset: 2rem -8rem auto auto;
    border: 1px solid rgb(52 214 255 / 0.13);
    border-radius: 50%;
    box-shadow: inset 0 0 90px rgb(52 214 255 / 0.035);
    content: "";
    transform: rotate(-12deg);
}

.spectrum-hero__eyebrow {
    margin: 0 0 1.25rem;
    color: var(--color-mint);
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.16em;
}

.spectrum-hero h1 {
    max-width: 20ch;
    margin: 0;
    font-size: clamp(2.5rem, 5.4vw, 5.35rem);
    line-height: 1.02;
}

.spectrum-hero__copy {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(18rem, 0.8fr);
    gap: clamp(2rem, 6vw, 6rem);
    align-items: start;
    margin-top: 2rem;
}

.spectrum-hero__copy > p:first-child {
    margin: 0;
    color: #d9e2e6;
    font-size: clamp(1.05rem, 1.8vw, 1.35rem);
    line-height: 1.55;
}

.spectrum-hero__privacy {
    position: relative;
    margin: 0;
    padding-inline-start: 1.5rem;
    color: var(--spectrum-ink-soft);
    font-size: 0.92rem;
}

.spectrum-hero__privacy > span {
    position: absolute;
    width: 0.6rem;
    height: 0.6rem;
    inset: 0.35rem auto auto 0;
    border: 2px solid var(--color-mint);
    border-radius: 50%;
}

.spectrum-tool {
    padding-bottom: clamp(5rem, 9vw, 8rem);
}

.spectrum-console {
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-xl);
    background: #090e12;
    box-shadow: 0 34px 84px rgb(0 0 0 / 0.34);
    overflow: hidden;
}

.spectrum-console__header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: center;
    padding: 1.4rem 1.5rem;
    border-bottom: 1px solid var(--spectrum-line);
    background: #0e151a;
}

.spectrum-console__title-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    align-items: center;
}

.spectrum-console__header h2 {
    margin: 0;
    font-size: clamp(1.4rem, 2vw, 1.9rem);
}

.spectrum-console__header p {
    margin: 0.35rem 0 0;
    color: var(--spectrum-ink-soft);
    font-size: 0.91rem;
}

.spectrum-console__status {
    display: inline-flex;
    gap: 0.45rem;
    align-items: center;
    min-height: 1.85rem;
    padding: 0.2rem 0.7rem;
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-pill);
    color: #c2cdd2;
    font-size: 0.72rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.02em;
}

.spectrum-console__status i {
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: #65747d;
}

.spectrum-console[data-status="active"] .spectrum-console__status {
    border-color: rgb(57 255 182 / 0.3);
    color: var(--color-mint);
}

.spectrum-console[data-status="active"] .spectrum-console__status i {
    background: var(--color-mint);
    box-shadow: 0 0 12px rgb(57 255 182 / 0.45);
}

.spectrum-console[data-status="loading"] .spectrum-console__status i {
    background: var(--color-cyan);
    animation: spectrum-pulse 1.1s ease-in-out infinite;
}

.spectrum-console[data-status="error"] .spectrum-console__status {
    color: #ff7895;
}

.spectrum-console__technical {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 1.75rem;
    margin: 0;
}

.spectrum-console__technical div {
    display: grid;
    gap: 0.1rem;
}

.spectrum-console__technical dt {
    color: #70808a;
    font-size: 0.65rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.spectrum-console__technical dd {
    margin: 0;
    color: #dfe8eb;
    font-family: var(--font-measurement);
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
    font-weight: var(--font-weight-bold);
}

.spectrum-source {
    display: grid;
    grid-template-columns: 13rem minmax(0, 1fr);
    border-bottom: 1px solid var(--spectrum-line);
}

.spectrum-source__tabs {
    display: grid;
    align-content: start;
    padding: 1rem;
    border-inline-end: 1px solid var(--spectrum-line);
    background: #0b1115;
}

.spectrum-source__tabs label {
    display: block;
}

.spectrum-source__tabs input,
.spectrum-source__tabs + input,
.spectrum-segmented input,
.spectrum-range-options input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.spectrum-source__tabs label > span {
    display: flex;
    gap: 0.65rem;
    align-items: center;
    min-height: 2.9rem;
    padding: 0.7rem 0.85rem;
    border-radius: var(--radius-sm);
    color: #91a2ac;
    font-size: 0.88rem;
    font-weight: var(--font-weight-semibold);
}

.spectrum-source__tabs svg,
.spectrum-button svg,
.spectrum-file-drop__icon svg {
    width: 1.1rem;
    height: 1.1rem;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.75;
}

.spectrum-source__tabs input:checked + span {
    background: #162128;
    color: var(--color-mint);
}

.spectrum-source__tabs input:focus-visible + span,
.spectrum-segmented input:focus-visible + span,
.spectrum-range-options input:focus-visible + span {
    outline: 2px solid var(--focus-ring-color);
    outline-offset: 2px;
}

.spectrum-source__panel {
    min-width: 0;
    padding: 1.15rem 1.5rem;
}

.spectrum-source__panel[hidden] {
    display: none;
}

.spectrum-source__primary {
    display: flex;
    gap: 1rem;
    align-items: end;
}

.spectrum-source__panel > p {
    margin: 0.75rem 0 0;
    max-width: none;
    color: #7f909a;
    font-size: 0.77rem;
}

.spectrum-source__panel > p strong {
    color: #b6c4ca;
}

.spectrum-field {
    display: grid;
    gap: 0.35rem;
}

.spectrum-field > span {
    color: #8fa0aa;
    font-size: 0.72rem;
    font-weight: var(--font-weight-semibold);
}

.spectrum-field--device {
    width: min(100%, 24rem);
}

.spectrum-field select,
.spectrum-setting select {
    min-height: 2.75rem;
    padding: 0 2.5rem 0 0.85rem;
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-sm);
    background: #0b1115;
    color: var(--color-text);
}

.spectrum-button {
    min-height: 2.65rem;
    padding: 0.62rem 0.9rem;
    display: inline-flex;
    gap: 0.55rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-sm);
    background: #10171c;
    color: #cfdbdf;
    font-size: 0.78rem;
    font-weight: var(--font-weight-semibold);
    line-height: 1;
}

.spectrum-button:hover:not(:disabled) {
    border-color: #3a4c57;
    background: #162027;
    color: #fff;
    transform: translateY(-1px);
}

.spectrum-button--primary {
    border-color: var(--color-mint);
    background: var(--color-mint);
    color: #04110c;
}

.spectrum-button--primary:hover:not(:disabled) {
    border-color: #78ffd0;
    background: #78ffd0;
    color: #04110c;
}

.spectrum-button--stop {
    color: #ff8ba4;
}

.spectrum-button--icon {
    width: 3rem;
    padding-inline: 0;
}

.spectrum-button[aria-pressed="true"] {
    border-color: rgb(57 255 182 / 0.36);
    color: var(--color-mint);
}

.spectrum-toggle-dot {
    width: 0.48rem;
    height: 0.48rem;
    border: 1px solid currentColor;
    border-radius: 50%;
}

.spectrum-button[aria-pressed="true"] .spectrum-toggle-dot {
    background: currentColor;
    box-shadow: 0 0 8px rgb(57 255 182 / 0.35);
}

.spectrum-file-drop {
    min-height: 4.75rem;
    padding: 0.85rem 1rem;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0.85rem;
    align-items: center;
    border: 1px dashed #32444f;
    border-radius: var(--radius-md);
    background: #0b1115;
}

.spectrum-file-drop[data-dragging="true"] {
    border-color: var(--color-mint);
    background: rgb(57 255 182 / 0.05);
}

.spectrum-file-drop__icon {
    width: 2.7rem;
    height: 2.7rem;
    display: grid;
    place-items: center;
    border-radius: var(--radius-sm);
    background: #162128;
    color: var(--color-cyan);
}

.spectrum-file-drop > span:nth-child(3) {
    display: grid;
}

.spectrum-file-drop strong {
    font-size: 0.86rem;
}

.spectrum-file-drop small {
    color: #7d8f99;
    font-size: 0.74rem;
}

.spectrum-file-drop b {
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-sm);
    font-size: 0.74rem;
}

.spectrum-file-player {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.9rem;
    align-items: center;
}

.spectrum-file-player[hidden] {
    display: none;
}

.spectrum-file-player__body {
    min-width: 0;
}

.spectrum-file-player__body > div {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-bottom: 0.4rem;
}

.spectrum-file-player__body strong {
    overflow: hidden;
    font-size: 0.8rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.spectrum-file-player__body time {
    flex: 0 0 auto;
    color: #91a2ac;
    font-size: 0.72rem;
    font-variant-numeric: tabular-nums;
}

.spectrum-file-player__body input {
    width: 100%;
}

.spectrum-transport {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--spectrum-line);
    background: #0b1115;
}

.spectrum-transport__spacer {
    flex: 1 1 auto;
}

.spectrum-button--export {
    background: transparent;
}

.spectrum-console__alert {
    margin: 1rem 1rem 0;
    padding: 0.75rem 0.9rem;
    border: 1px solid rgb(255 71 111 / 0.35);
    border-radius: var(--radius-sm);
    background: rgb(255 71 111 / 0.07);
    color: #ff9aae;
    font-size: 0.82rem;
}

.spectrum-console__alert[hidden] {
    display: none;
}

.spectrum-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 16rem;
    border-bottom: 1px solid var(--spectrum-line);
}

.spectrum-primary-view {
    min-width: 0;
    padding: 1.25rem;
    border-inline-end: 1px solid var(--spectrum-line);
}

.spectrum-panel-header {
    display: flex;
    gap: 1rem;
    align-items: start;
    justify-content: space-between;
    margin-bottom: 0.9rem;
}

.spectrum-panel-header h3 {
    margin: 0;
    font-size: 1rem;
    letter-spacing: -0.015em;
}

.spectrum-panel-header p {
    margin: 0.2rem 0 0;
    color: #74858f;
    font-size: 0.7rem;
}

.spectrum-cursor-readout,
.spectrum-panel-header > output {
    min-width: 14rem;
    color: #9fb0b9;
    font-family: var(--font-measurement);
    font-size: 0.7rem;
    font-variant-numeric: tabular-nums;
    text-align: end;
}

.spectrum-canvas-wrap {
    position: relative;
    min-height: 24rem;
    border: 1px solid #18252d;
    border-radius: var(--radius-sm);
    background: #080d11;
    overflow: hidden;
}

.spectrum-canvas {
    width: 100%;
    height: auto;
    min-height: 24rem;
    display: block;
    touch-action: none;
}

.spectrum-canvas:focus-visible {
    outline-offset: -3px;
}

.spectrum-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    justify-items: center;
    background: rgb(8 13 17 / 0.74);
    text-align: center;
}

.spectrum-empty[hidden] {
    display: none;
}

.spectrum-empty__icon {
    width: 4.3rem;
    height: 3.2rem;
    margin-bottom: 0.95rem;
    display: grid;
    place-items: center;
    filter: drop-shadow(0 5px 14px rgb(52 214 255 / 0.18));
}

.spectrum-empty__icon img {
    width: 3.85rem;
    height: auto;
    display: block;
}

.spectrum-empty strong {
    font-family: var(--font-display);
    font-size: 1rem;
}

.spectrum-empty p {
    margin: 0.25rem 0 0;
    color: #73848e;
    font-size: 0.76rem;
}

.spectrum-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    align-items: center;
    margin-top: 0.7rem;
    color: #73848e;
    font-size: 0.68rem;
}

.spectrum-legend span {
    display: inline-flex;
    gap: 0.45rem;
    align-items: center;
}

.spectrum-legend i {
    width: 1.4rem;
    height: 2px;
    display: inline-block;
}

.spectrum-legend__live {
    background: var(--color-mint);
}

.spectrum-legend__peak {
    border-top: 1px dashed #dbe5e8;
}

.spectrum-metrics {
    display: grid;
    align-content: start;
}

.spectrum-metric {
    min-height: 8.5rem;
    padding: 1.15rem;
    display: grid;
    align-content: center;
    border-bottom: 1px solid var(--spectrum-line);
}

.spectrum-metric:last-child {
    border-bottom: 0;
}

.spectrum-metric > span {
    color: #74858f;
    font-size: 0.68rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.spectrum-metric output {
    margin: 0.45rem 0 0.25rem;
    color: #f0f6f7;
    font-family: var(--font-measurement);
    font-size: clamp(1.45rem, 2.3vw, 2.2rem);
    font-variant-numeric: tabular-nums;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.035em;
    line-height: 1;
}

.spectrum-metric--primary output {
    color: var(--color-mint);
}

.spectrum-metric small {
    color: #6f808a;
    font-size: 0.66rem;
    line-height: 1.35;
}

.spectrum-analysis-row {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    border-bottom: 1px solid var(--spectrum-line);
}

.spectrum-peaks,
.spectrum-bands {
    min-width: 0;
    padding: 1.25rem;
}

.spectrum-peaks {
    border-inline-end: 1px solid var(--spectrum-line);
}

.spectrum-peak-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.spectrum-peak-list li {
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr) auto auto;
    gap: 0.75rem;
    align-items: center;
    min-height: 2.65rem;
    border-top: 1px solid #172229;
}

.spectrum-peak-list li > span {
    color: #81939e;
    font-size: 0.65rem;
    font-weight: var(--font-weight-bold);
}

.spectrum-peak-list strong,
.spectrum-peak-list b {
    font-family: var(--font-measurement);
    font-size: 0.76rem;
    font-variant-numeric: tabular-nums;
}

.spectrum-peak-list strong {
    color: #d9e4e7;
}

.spectrum-peak-list small {
    color: #7b8d97;
    font-size: 0.7rem;
}

.spectrum-peak-list b {
    color: var(--color-cyan);
}

.spectrum-band-meters {
    display: grid;
    gap: 0.64rem;
}

.spectrum-band-meter {
    display: grid;
    grid-template-columns: minmax(8rem, 0.9fr) minmax(6rem, 1fr);
    gap: 0.75rem;
    align-items: center;
}

.spectrum-band-meter > div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.1rem 0.6rem;
}

.spectrum-band-meter strong {
    overflow: hidden;
    color: #bcc9ce;
    font-size: 0.7rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.spectrum-band-meter small {
    grid-column: 1;
    color: #81939e;
    font-size: 0.59rem;
}

.spectrum-band-meter output {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    color: #84959f;
    font-family: var(--font-measurement);
    font-size: 0.64rem;
    font-variant-numeric: tabular-nums;
}

.spectrum-band-meter > span {
    height: 0.45rem;
    display: block;
    border-radius: var(--radius-pill);
    background: #172229;
    overflow: hidden;
}

.spectrum-band-meter > span i {
    width: var(--level, 0%);
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-mint));
}

.spectrum-spectrogram,
.spectrum-waveform {
    padding: 1.25rem;
    border-bottom: 1px solid var(--spectrum-line);
}

.spectrum-panel-badge {
    color: #70818b;
    font-size: 0.65rem;
}

.spectrum-panel-badge i {
    width: 1.7rem;
    height: 1px;
    margin-inline: 0.45rem;
    display: inline-block;
    background: linear-gradient(90deg, var(--color-mint), #35444d);
    vertical-align: middle;
}

.spectrum-spectrogram__canvas {
    position: relative;
    border: 1px solid #18252d;
    border-radius: var(--radius-sm);
    background: #080d11;
    overflow: hidden;
}

.spectrum-spectrogram canvas,
.spectrum-waveform canvas {
    width: 100%;
    height: auto;
    display: block;
}

.spectrum-spectrogram__axis {
    position: absolute;
    inset: 0 auto 0 0;
    width: 3.7rem;
    padding: 0.5rem 0.4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: linear-gradient(90deg, rgb(8 13 17 / 0.92), transparent);
    pointer-events: none;
}

.spectrum-spectrogram__axis i {
    color: #8999a2;
    font-size: 0.56rem;
    font-style: normal;
}

.spectrum-intensity {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: flex-end;
    margin-top: 0.55rem;
    color: #657680;
    font-size: 0.58rem;
}

.spectrum-intensity i {
    width: 2.5rem;
    height: 0.32rem;
    display: block;
    border-radius: var(--radius-pill);
    background: linear-gradient(90deg, #0d202a, #34d6ff, #e6fff6);
}

.spectrum-waveform canvas {
    border: 1px solid #18252d;
    border-radius: var(--radius-sm);
}

.spectrum-settings {
    border-bottom: 1px solid var(--spectrum-line);
}

.spectrum-settings summary {
    min-height: 4.6rem;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
}

.spectrum-settings summary::-webkit-details-marker {
    display: none;
}

.spectrum-settings summary > span {
    display: grid;
}

.spectrum-settings summary strong {
    font-family: var(--font-display);
    font-size: 0.92rem;
}

.spectrum-settings summary small {
    margin-top: 0.15rem;
    color: #6e7f89;
    font-size: 0.67rem;
}

.spectrum-settings summary > i {
    width: 0.75rem;
    height: 0.75rem;
    border-inline-end: 1px solid #91a2ac;
    border-bottom: 1px solid #91a2ac;
    transform: rotate(45deg);
}

.spectrum-settings[open] summary > i {
    transform: rotate(225deg) translate(-0.2rem, -0.2rem);
}

.spectrum-settings__grid {
    padding: 0 1.25rem 1.25rem;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.spectrum-setting {
    min-width: 0;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.65rem;
    align-content: start;
    border: 0;
}

.spectrum-setting > span,
.spectrum-setting legend {
    width: 100%;
    display: flex;
    justify-content: space-between;
    color: #c9d4d8;
    font-size: 0.72rem;
}

.spectrum-setting output {
    color: var(--color-mint);
    font-family: var(--font-measurement);
    font-variant-numeric: tabular-nums;
}

.spectrum-setting > small {
    color: #71828c;
    font-size: 0.63rem;
    line-height: 1.4;
}

.spectrum-setting input[type="range"],
.spectrum-file-player input[type="range"] {
    height: 0.35rem;
    border-radius: var(--radius-pill);
    appearance: none;
    background: #213039;
}

.spectrum-setting input[type="range"]::-webkit-slider-thumb,
.spectrum-file-player input[type="range"]::-webkit-slider-thumb {
    width: 1rem;
    height: 1rem;
    border: 2px solid #07100c;
    border-radius: 50%;
    appearance: none;
    background: var(--color-mint);
}

.spectrum-setting input[type="range"]::-moz-range-thumb,
.spectrum-file-player input[type="range"]::-moz-range-thumb {
    width: 0.9rem;
    height: 0.9rem;
    border: 2px solid #07100c;
    border-radius: 50%;
    background: var(--color-mint);
}

.spectrum-segmented,
.spectrum-range-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.25rem;
}

.spectrum-range-options {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.spectrum-segmented label > span,
.spectrum-range-options label > span {
    min-height: 2.45rem;
    padding: 0.45rem;
    display: grid;
    place-items: center;
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-sm);
    color: #899aa3;
    font-size: 0.68rem;
    font-weight: var(--font-weight-semibold);
}

.spectrum-segmented input:checked + span,
.spectrum-range-options input:checked + span {
    border-color: rgb(57 255 182 / 0.38);
    background: rgb(57 255 182 / 0.07);
    color: var(--color-mint);
}

.spectrum-accuracy-note {
    margin: 0;
    padding: 1rem 1.25rem;
    color: #7f909a;
    font-size: 0.74rem;
}

.spectrum-accuracy-note strong {
    color: #b8c6cb;
}

.spectrum-editorial > section {
    padding-block: var(--section-space);
}

.spectrum-editorial > section:nth-child(even),
.spectrum-faq {
    background: var(--color-surface);
}

.spectrum-section-heading {
    max-width: 48rem;
    margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.spectrum-section-heading--wide {
    max-width: 61rem;
}

.spectrum-section-heading h2,
.spectrum-explain h2,
.spectrum-tones h2,
.spectrum-centroid h2,
.spectrum-local h2 {
    margin: 0 0 1rem;
}

.spectrum-section-heading p,
.spectrum-explain p,
.spectrum-tones p,
.spectrum-centroid p,
.spectrum-local p {
    color: var(--spectrum-ink-soft);
}

.spectrum-how__steps {
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    list-style: none;
}

.spectrum-how__steps li {
    min-width: 0;
    padding: 0 1.2rem;
    border-inline-start: 1px solid var(--color-border);
}

.spectrum-how__steps li:first-child {
    padding-inline-start: 0;
    border-inline-start: 0;
}

.spectrum-how__steps li:last-child {
    padding-inline-end: 0;
}

.spectrum-how__steps > li > span,
.diagnostic-list article > span,
.spectrum-use-list article > span {
    display: block;
    margin-bottom: 1.25rem;
    color: var(--color-mint);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: var(--font-weight-bold);
}

.spectrum-how__steps h3,
.diagnostic-list h3,
.spectrum-use-list h3,
.frequency-band-notes h3 {
    margin: 0 0 0.55rem;
    font-size: 0.95rem;
}

.spectrum-how__steps p,
.diagnostic-list p,
.spectrum-use-list p,
.frequency-band-notes p {
    margin: 0;
    color: #84959f;
    font-size: 0.82rem;
    line-height: 1.55;
}

.signal-flow {
    margin: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 8rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: center;
}

.signal-flow__stage {
    min-height: 14rem;
    padding: 1.2rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: #090e12;
}

.signal-flow__stage .signal-flow__caption,
.harmonic-figure figcaption,
.hum-figure figcaption {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.signal-flow__stage .signal-flow__caption span,
.harmonic-figure figcaption span,
.hum-figure figcaption span {
    color: #81939e;
    font-size: 0.66rem;
}

.signal-flow__stage .signal-flow__caption strong,
.harmonic-figure figcaption strong,
.hum-figure figcaption strong {
    font-family: var(--font-display);
    font-size: 0.9rem;
}

.signal-flow__stage svg {
    width: 100%;
    margin-top: 2rem;
    fill: none;
    stroke: var(--color-mint);
    stroke-width: 2;
}

.signal-flow__operator {
    display: grid;
    gap: 0.4rem;
    justify-items: center;
    color: var(--color-cyan);
}

.signal-flow__operator span {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: var(--font-weight-bold);
}

.signal-flow__operator i {
    font-size: 2rem;
    font-style: normal;
}

.signal-flow__bars {
    height: 7rem;
    margin-top: 2rem;
    display: flex;
    gap: 3%;
    align-items: end;
}

.signal-flow__bars i {
    width: 6%;
    height: 24%;
    background: var(--color-cyan);
}

.signal-flow__bars i:nth-child(2) { height: 48%; }
.signal-flow__bars i:nth-child(3) { height: 82%; background: var(--color-mint); }
.signal-flow__bars i:nth-child(4) { height: 37%; }
.signal-flow__bars i:nth-child(5) { height: 66%; }
.signal-flow__bars i:nth-child(6) { height: 28%; }
.signal-flow__bars i:nth-child(7) { height: 52%; }
.signal-flow__bars i:nth-child(8) { height: 20%; }
.signal-flow__bars i:nth-child(9) { height: 35%; }
.signal-flow__bars i:nth-child(10) { height: 16%; }
.signal-flow__bars i:nth-child(11) { height: 26%; }
.signal-flow__bars i:nth-child(12) { height: 12%; }

.concept-grid {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
}

.concept-panel {
    min-height: 23rem;
    padding: clamp(1.4rem, 3vw, 2.25rem);
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(15rem, 1.2fr);
    gap: 2rem;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: #090e12;
}

.concept-panel h3 {
    margin: 0 0 0.8rem;
    font-size: 1.3rem;
}

.concept-panel p {
    margin: 0;
    color: #899aa4;
    font-size: 0.88rem;
}

.fft-comparison {
    display: grid;
    gap: 1.2rem;
}

.fft-comparison figure {
    margin: 0;
}

.fft-comparison figcaption {
    display: flex;
    justify-content: space-between;
    color: #788a94;
    font-size: 0.65rem;
}

.fft-comparison figcaption strong {
    color: #d3dee2;
}

.fft-comparison__plot {
    position: relative;
    height: 4.25rem;
    margin-top: 0.45rem;
    border-bottom: 1px solid #32434d;
}

.fft-comparison__plot i {
    position: absolute;
    width: 5%;
    inset: auto auto 0 12%;
    border-top: 1px solid var(--color-mint);
    background: linear-gradient(180deg, rgb(57 255 182 / 0.32), transparent);
}

.fft-comparison__plot i:nth-child(1) { height: 70%; left: 10%; }
.fft-comparison__plot i:nth-child(2) { height: 38%; left: 30%; }
.fft-comparison__plot i:nth-child(3) { height: 82%; left: 48%; }
.fft-comparison__plot i:nth-child(4) { height: 31%; left: 68%; }
.fft-comparison__plot i:nth-child(5) { height: 50%; left: 84%; }
.fft-comparison__plot--large i { width: 2%; }
.fft-comparison__plot--large i:nth-child(6) { height: 24%; left: 74%; }
.fft-comparison__plot--large i:nth-child(7) { height: 42%; left: 88%; }

.view-comparison {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
}

.concept-panel--views {
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    min-height: 0;
}

.view-comparison__heading {
    display: flex;
    gap: 1rem;
    align-items: start;
    justify-content: space-between;
}

.view-comparison__heading h3 {
    margin-bottom: 0.4rem;
}

.view-comparison__heading > span {
    flex: 0 0 auto;
    padding: 0.35rem 0.6rem;
    border: 1px solid #35525b;
    border-radius: var(--radius-pill);
    color: #a6e9dc;
    font-size: 0.72rem;
    font-weight: var(--font-weight-semibold);
}

.view-comparison__figure {
    min-width: 0;
    margin: 0;
    padding: 1.15rem;
    display: flex;
    flex-direction: column;
    border: 1px solid #26343d;
    border-radius: var(--radius-md);
    background: #0b141a;
}

.view-comparison__figure figcaption {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem 0.8rem;
    align-items: baseline;
    justify-content: space-between;
}

.view-comparison__figure figcaption strong {
    color: #e7f0f2;
    font-family: var(--font-display);
    font-size: 1rem;
}

.view-comparison__figure figcaption span {
    color: #9db0b9;
    font-size: 0.76rem;
}

.view-comparison__figure > p {
    max-width: 48ch;
    margin: 0.9rem 0 0;
    color: #b2c1c8;
    font-size: 0.85rem;
    line-height: 1.5;
}

.view-comparison__plot {
    position: relative;
    height: 15rem;
    margin-top: 0.9rem;
    border: 1px solid #253741;
    border-radius: var(--radius-sm);
    background: #081117;
    overflow: hidden;
}

.view-comparison__plot svg {
    position: absolute;
    width: 100%;
    height: 100%;
    inset: 0;
}

.view-comparison__grid {
    fill: none;
    stroke: #1d3039;
    stroke-width: 1;
}

.view-comparison__axes {
    fill: none;
    stroke: #66808a;
    stroke-width: 1.4;
}

.view-comparison__area {
    fill: url(#example-spectrum-fill);
}

.view-comparison__trace {
    fill: none;
    stroke: var(--color-mint);
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2.8;
}

.view-comparison__dominant-point {
    fill: var(--color-mint);
    stroke: #092019;
    stroke-width: 2;
}

.view-comparison__leader {
    fill: none;
    stroke: #99e4da;
    stroke-width: 1.2;
}

.view-comparison__dominant-label {
    position: absolute;
    inset: 0.8rem 0.75rem auto auto;
    max-width: 47%;
    color: #b5f8e4;
    font-size: 0.68rem;
    font-weight: var(--font-weight-semibold);
    text-align: end;
}

.view-comparison__axis {
    position: absolute;
    z-index: 1;
    color: #a6b8c0;
    font-size: 0.72rem;
    font-weight: var(--font-weight-semibold);
    line-height: 1;
}

.view-comparison__axis--y {
    inset: 50% auto auto 0.4rem;
    writing-mode: vertical-rl;
    transform: translateY(-50%) rotate(180deg);
}

.view-comparison__axis--x {
    inset: auto auto 0.4rem 50%;
    transform: translateX(-50%);
}

.view-comparison__heatmap {
    position: absolute;
    inset: 1.4rem 0.85rem 2rem 2.2rem;
    border: 1px solid #2b414c;
    background-color: #0a1720;
    background-image: linear-gradient(rgb(126 164 178 / 0.1) 1px, transparent 1px), linear-gradient(90deg, rgb(126 164 178 / 0.1) 1px, transparent 1px);
    background-size: 100% 25%, 20% 100%;
    overflow: hidden;
}

.view-comparison__energy,
.view-comparison__event {
    position: absolute;
    display: block;
    mix-blend-mode: screen;
}

.view-comparison__energy {
    height: 12%;
    filter: blur(4px);
    background: linear-gradient(90deg, transparent 0%, #17647c 6%, #34d6ff 14%, #39ffb6 22%, #153e59 29%, transparent 35%, #1b7790 44%, #34d6ff 52%, #39ffb6 59%, transparent 65%, #28748c 73%, #ffd184 81%, #39ffb6 87%, transparent 100%);
}

.view-comparison__energy--low { inset: 76% 0 0; height: 18%; opacity: 0.86; }
.view-comparison__energy--mid { inset: 53% 6% auto 4%; opacity: 0.72; }
.view-comparison__energy--high { inset: 32% 12% auto 15%; height: 9%; opacity: 0.55; }
.view-comparison__energy--upper { inset: 13% 3% auto 39%; height: 7%; opacity: 0.4; }

.view-comparison__event {
    width: 9%;
    height: 74%;
    inset: 13% auto auto 13%;
    filter: blur(7px);
    background: linear-gradient(180deg, transparent 0%, #214d78 22%, #34d6ff 46%, #39ffb6 66%, #ffd184 83%, transparent 100%);
    opacity: 0.5;
}

.view-comparison__event--two { left: 37%; top: 25%; height: 64%; width: 7%; opacity: 0.33; }
.view-comparison__event--three { left: 58%; top: 5%; height: 86%; width: 13%; opacity: 0.62; }
.view-comparison__event--four { left: 82%; top: 31%; height: 58%; width: 8%; opacity: 0.38; }

.view-comparison__legend {
    display: flex;
    gap: 0.55rem;
    align-items: center;
    margin-top: auto;
    padding-top: 0.85rem;
    color: #a8bbc3;
    font-size: 0.72rem;
}

.view-comparison__legend i {
    width: min(7rem, 28%);
    height: 0.45rem;
    border-radius: var(--radius-pill);
    background: linear-gradient(90deg, #142a36, #34d6ff 47%, #39ffb6 73%, #ffd184);
}

.spectrum-explain__grid,
.spectrum-tones__layout,
.spectrum-centroid__layout,
.spectrum-local__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
    gap: clamp(3rem, 8vw, 8rem);
    align-items: center;
}

.spectrum-explain__definition {
    padding: 1.75rem;
    border-top: 1px solid var(--color-mint);
    border-bottom: 1px solid var(--color-border);
}

.spectrum-explain__definition > span {
    color: var(--color-mint);
    font-size: 0.66rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.spectrum-explain__definition dl {
    margin: 1.2rem 0 0;
}

.spectrum-explain__definition dl > div {
    padding: 0.85rem 0;
    display: grid;
    grid-template-columns: 8rem minmax(0, 1fr);
    gap: 1rem;
    border-top: 1px solid var(--color-border);
}

.spectrum-explain__definition dt {
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
}

.spectrum-explain__definition dd {
    margin: 0;
    color: #83949e;
    font-size: 0.86rem;
}

.frequency-strip {
    display: flex;
    min-height: 7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.frequency-strip__band {
    flex-grow: var(--band-grow);
    min-width: 0;
    padding: 1rem 0.65rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-inline-end: 1px solid #26343d;
    background: #0a1014;
}

.frequency-strip__band:last-child {
    border-inline-end: 0;
}

.frequency-strip__band:nth-child(1),
.frequency-strip__band:nth-child(2) { box-shadow: inset 0 -1px var(--color-mint); }
.frequency-strip__band:nth-child(3),
.frequency-strip__band:nth-child(4),
.frequency-strip__band:nth-child(5) { box-shadow: inset 0 -1px var(--color-cyan); }
.frequency-strip__band:nth-child(6),
.frequency-strip__band:nth-child(7) { box-shadow: inset 0 -1px #8c8fff; }

.frequency-strip__band strong {
    overflow: hidden;
    color: #d9e3e6;
    font-size: 0.66rem;
    letter-spacing: 0.035em;
    text-overflow: ellipsis;
}

.frequency-strip__band span {
    color: #71828c;
    font-size: 0.58rem;
}

.frequency-band-notes {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 2rem;
}

.frequency-band-notes article {
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.harmonic-figure,
.hum-figure {
    margin: 0;
    padding: 1.4rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: #090e12;
}

.harmonic-figure__plot,
.hum-figure__plot {
    position: relative;
    height: 15rem;
    margin-top: 1.5rem;
    border-bottom: 1px solid #35454e;
    background-image: linear-gradient(#19252c 1px, transparent 1px);
    background-size: 100% 25%;
}

.harmonic-figure__plot > span,
.hum-figure__plot > span {
    position: absolute;
    width: 3px;
    height: var(--peak-h, var(--h));
    inset: auto auto 0 var(--peak-x, var(--x));
    background: linear-gradient(180deg, var(--color-mint), var(--color-cyan));
}

.harmonic-figure__plot > span i,
.hum-figure__plot > span i {
    position: absolute;
    inset: -1.25rem auto auto 50%;
    color: #899aa4;
    font-size: 0.59rem;
    font-style: normal;
    transform: translateX(-50%);
}

.harmonic-figure__labels {
    margin-top: 0.75rem;
    display: flex;
    justify-content: space-between;
    color: #71828c;
    font-size: 0.62rem;
}

.diagnostic-layout {
    display: grid;
    grid-template-columns: minmax(20rem, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(2.5rem, 7vw, 7rem);
    align-items: center;
}

.hum-figure p {
    margin: 1rem 0 0;
    color: #7d8f99;
    font-size: 0.76rem;
}

.diagnostic-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
}

.diagnostic-list article,
.spectrum-use-list article {
    padding-top: 1.1rem;
    border-top: 1px solid var(--color-border);
}

.centroid-scale {
    display: grid;
    grid-template-columns: auto minmax(8rem, 1fr) auto;
    gap: 0.75rem;
    align-items: center;
}

.centroid-scale > span {
    color: #788993;
    font-size: 0.66rem;
}

.centroid-scale > i {
    position: relative;
    height: 0.5rem;
    border-radius: var(--radius-pill);
    background: linear-gradient(90deg, var(--color-mint), var(--color-cyan), #8c8fff);
}

.centroid-scale > i b {
    position: absolute;
    width: 1rem;
    height: 1rem;
    inset: 50% auto auto 52%;
    border: 2px solid #0d1217;
    border-radius: 50%;
    background: #fff;
    transform: translate(-50%, -50%);
}

.centroid-scale > strong {
    grid-column: 1 / -1;
    justify-self: center;
    color: #c8d4d8;
    font-size: 0.72rem;
}

.spectrum-local__grid article {
    align-self: stretch;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.spectrum-local__grid {
    align-items: start;
}

.spectrum-use-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
}

.spectrum-limits__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.spectrum-limits__grid > div {
    padding: clamp(1.5rem, 4vw, 2.75rem);
}

.spectrum-limits__grid > div + div {
    border-inline-start: 1px solid var(--color-border);
}

.spectrum-limits__grid h3 {
    margin: 0 0 1.4rem;
    font-size: 1.15rem;
}

.spectrum-limits__grid ul {
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.9rem;
    list-style: none;
}

.spectrum-limits__grid li {
    position: relative;
    padding-inline-start: 1.7rem;
    color: #a7b6bd;
    font-size: 0.87rem;
}

.spectrum-limits__grid li span {
    position: absolute;
    inset: 0 auto auto 0;
    color: var(--color-mint);
    font-weight: var(--font-weight-bold);
}

.spectrum-limits__grid > div + div li span {
    color: #ff7693;
}

.spectrum-limits__note {
    max-width: 74rem;
    margin: 1.5rem 0 0;
    color: #83949e;
    font-size: 0.86rem;
}

.spectrum-limits__note strong {
    color: #cbd6da;
}

.spectrum-related__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--color-border);
}

.spectrum-related__grid a {
    position: relative;
    min-height: 10rem;
    padding: 1.35rem 3rem 1.35rem 0;
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--color-border);
    color: inherit;
    text-decoration: none;
}

.spectrum-related__grid a:not(:nth-child(3n + 1)) {
    padding-inline-start: 1.35rem;
    border-inline-start: 1px solid var(--color-border);
}

.spectrum-related__grid strong {
    font-family: var(--font-display);
    font-size: 1rem;
}

.spectrum-related__grid span {
    margin-top: 0.55rem;
    color: #84959f;
    font-size: 0.78rem;
}

.spectrum-related__grid i {
    position: absolute;
    inset: 1.35rem 1rem auto auto;
    color: var(--color-cyan);
    font-style: normal;
}

.spectrum-related__grid a:hover strong {
    color: var(--color-mint);
}

.spectrum-faq {
    padding-block: var(--section-space);
}

.spectrum-faq__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(2rem, 6vw, 6rem);
    align-items: start;
}

.spectrum-faq__list details {
    border-top: 1px solid var(--color-border);
}

.spectrum-faq__list details:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--color-border);
}

.spectrum-faq__list summary {
    min-height: 4.75rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    color: #dfe7ea;
    font-family: var(--font-display);
    font-size: 0.94rem;
    font-weight: var(--font-weight-bold);
    list-style: none;
}

.spectrum-faq__list summary::-webkit-details-marker,
.spectrum-faq__list summary::marker {
    display: none;
}

.spectrum-faq__list summary > span:last-child {
    color: var(--color-mint);
    font-family: var(--font-body);
    font-size: 1.25rem;
    font-weight: var(--font-weight-regular);
}

.spectrum-faq__list details[open] summary > span:last-child {
    transform: rotate(45deg);
}

.spectrum-faq__list details p {
    margin: -0.25rem 0 1.35rem;
    color: #8798a2;
    font-size: 0.86rem;
}

@keyframes spectrum-pulse {
    50% { opacity: 0.35; transform: scale(0.75); }
}

@media (max-width: 70rem) {
    .spectrum-console__header {
        grid-template-columns: 1fr;
    }

    .spectrum-console__technical {
        justify-content: start;
    }

    .spectrum-workspace {
        grid-template-columns: minmax(0, 1fr);
    }

    .spectrum-primary-view {
        border-inline-end: 0;
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-metrics {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .spectrum-metric {
        min-height: 7.5rem;
        border-inline-end: 1px solid var(--spectrum-line);
        border-bottom: 0;
    }

    .spectrum-metric:last-child {
        border-inline-end: 0;
    }

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

    .spectrum-how__steps {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 2rem 0;
    }

    .spectrum-how__steps li:nth-child(4) {
        padding-inline-start: 0;
        border-inline-start: 0;
    }

    .concept-panel {
        grid-template-columns: 1fr;
    }

    .frequency-band-notes {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 54rem) {
    .spectrum-hero__copy,
    .spectrum-explain__grid,
    .spectrum-tones__layout,
    .spectrum-centroid__layout,
    .spectrum-local__grid,
    .diagnostic-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .spectrum-source {
        grid-template-columns: 1fr;
    }

    .spectrum-source__tabs {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        border-inline-end: 0;
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-source__tabs label > span {
        justify-content: center;
    }

    .spectrum-analysis-row,
    .concept-grid {
        grid-template-columns: 1fr;
    }

    .spectrum-peaks {
        border-inline-end: 0;
        border-bottom: 1px solid var(--spectrum-line);
    }

    .signal-flow {
        grid-template-columns: 1fr;
    }

    .signal-flow__operator {
        transform: rotate(90deg);
    }

    .frequency-strip {
        min-height: 9rem;
    }

    .frequency-strip__band {
        padding-inline: 0.35rem;
    }

    .frequency-strip__band strong {
        writing-mode: vertical-rl;
        transform: rotate(180deg);
    }

    .frequency-band-notes,
    .spectrum-use-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .spectrum-related__grid a:not(:nth-child(3n + 1)) {
        padding-inline-start: 0;
        border-inline-start: 0;
    }

    .spectrum-related__grid a:nth-child(even) {
        padding-inline-start: 1.35rem;
        border-inline-start: 1px solid var(--color-border);
    }
}

@media (max-width: 40rem) {
    .spectrum-hero {
        padding-top: 3.5rem;
    }

    .spectrum-hero h1 {
        font-size: clamp(2rem, 9.5vw, 3rem);
    }

    .spectrum-hero__copy {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .spectrum-console {
        margin-inline: calc(var(--page-gutter) * -0.35);
        border-radius: var(--radius-md);
    }

    .spectrum-console__header,
    .spectrum-source__panel,
    .spectrum-primary-view,
    .spectrum-peaks,
    .spectrum-bands,
    .spectrum-spectrogram,
    .spectrum-waveform {
        padding: 1rem;
    }

    .spectrum-console__technical {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.75rem;
    }

    .spectrum-console__technical dd {
        font-size: 0.68rem;
    }

    .spectrum-source__primary {
        display: grid;
        grid-template-columns: 1fr;
    }

    .spectrum-field--device {
        width: 100%;
    }

    .spectrum-file-drop {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .spectrum-file-drop b {
        grid-column: 1 / -1;
        text-align: center;
    }

    .spectrum-transport {
        position: sticky;
        z-index: 4;
        top: 0;
        padding: 0.7rem;
    }

    .spectrum-transport .spectrum-button {
        min-height: 2.75rem;
        flex: 1 1 calc(50% - 0.55rem);
    }

    .spectrum-transport__spacer {
        display: none;
    }

    .spectrum-button--export {
        flex-basis: auto !important;
    }

    .spectrum-workspace {
        display: flex;
        flex-direction: column;
    }

    .spectrum-primary-view {
        order: 1;
    }

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

    .spectrum-metric {
        min-height: 7rem;
        border-inline-end: 1px solid var(--spectrum-line);
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-metric:nth-child(even) {
        border-inline-end: 0;
    }

    .spectrum-metric:nth-last-child(-n + 2) {
        border-bottom: 0;
    }

    .spectrum-metric output {
        font-size: 1.35rem;
    }

    .spectrum-panel-header {
        display: grid;
    }

    .spectrum-cursor-readout,
    .spectrum-panel-header > output {
        min-width: 0;
        text-align: start;
    }

    .spectrum-canvas-wrap,
    .spectrum-canvas {
        min-height: 17rem;
    }

    .spectrum-legend {
        gap: 0.5rem 0.8rem;
    }

    .spectrum-peak-list li {
        grid-template-columns: 1.6rem minmax(0, 1fr) auto;
    }

    .spectrum-peak-list small {
        display: none;
    }

    .spectrum-band-meter {
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }

    .spectrum-spectrogram canvas {
        min-height: 13rem;
        object-fit: cover;
    }

    .spectrum-settings__grid {
        grid-template-columns: 1fr;
    }

    .spectrum-how__steps,
    .frequency-band-notes,
    .diagnostic-list,
    .spectrum-use-list,
    .spectrum-limits__grid,
    .spectrum-related__grid,
    .spectrum-faq__list {
        grid-template-columns: 1fr;
    }

    .spectrum-how__steps {
        gap: 0;
    }

    .spectrum-how__steps li,
    .spectrum-how__steps li:nth-child(4) {
        padding: 1.2rem 0;
        display: grid;
        grid-template-columns: 2rem minmax(0, 1fr);
        border-top: 1px solid var(--color-border);
        border-inline-start: 0;
    }

    .spectrum-how__steps li:last-child {
        border-bottom: 1px solid var(--color-border);
    }

    .spectrum-how__steps > li > span {
        margin: 0.2rem 0 0;
    }

    .concept-panel {
        min-height: 0;
        grid-template-columns: 1fr;
    }

    .frequency-strip {
        min-height: 0;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        overflow: visible;
    }

    .frequency-strip__band {
        min-width: 0;
        min-height: 5.4rem;
        border-bottom: 1px solid #26343d;
    }

    .frequency-strip__band strong {
        writing-mode: initial;
        transform: none;
    }

    .spectrum-limits__grid > div + div {
        border-top: 1px solid var(--color-border);
        border-inline-start: 0;
    }

    .spectrum-related__grid a,
    .spectrum-related__grid a:nth-child(even),
    .spectrum-related__grid a:not(:nth-child(3n + 1)) {
        min-height: 7.5rem;
        padding-inline-start: 0;
        border-inline-start: 0;
    }

    .spectrum-faq__list details:nth-last-child(2) {
        border-bottom: 0;
    }
}

@media (max-width: 24rem) {
    .spectrum-console__technical {
        grid-template-columns: 1fr 1fr;
    }

    .spectrum-console__technical div:last-child {
        grid-column: 1 / -1;
    }

    .spectrum-transport .spectrum-button {
        flex-basis: 100%;
    }

    .spectrum-metrics {
        grid-template-columns: 1fr;
    }

    .spectrum-metric,
    .spectrum-metric:nth-child(even) {
        border-inline-end: 0;
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-metric:last-child {
        border-bottom: 0;
    }

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

@media (hover: hover) {
    .spectrum-faq__list summary:hover,
    .spectrum-settings summary:hover {
        color: var(--color-mint);
    }
}

@media (prefers-reduced-motion: reduce) {
    .spectrum-page *,
    .spectrum-page *::before,
    .spectrum-page *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Compact audio workstation */
.spectrum-hero {
    padding: clamp(2rem, 3.8vw, 3.25rem) 0 clamp(1rem, 2.2vw, 1.75rem);
}

.spectrum-hero__inner {
    display: grid;
    justify-items: center;
    gap: 0.55rem;
    text-align: center;
}

.spectrum-hero__inner::after {
    display: none;
}

.spectrum-hero__eyebrow {
    margin: 0;
    letter-spacing: 0.14em;
}

.spectrum-hero h1 {
    max-width: 26ch;
    margin: 0;
    font-size: clamp(2rem, 3.8vw, 3.75rem);
    line-height: 1.09;
}

.spectrum-hero__support {
    max-width: 45rem;
    margin: 0.1rem 0 0;
    color: #aebec5;
    font-size: clamp(0.95rem, 1.3vw, 1.1rem);
}

.spectrum-concepts__fft-intro {
    max-width: 72ch;
    margin: 0 0 2rem;
    color: var(--spectrum-ink-soft);
}

.spectrum-concepts__fft-intro strong {
    color: var(--color-text);
}

.spectrum-tool {
    padding-bottom: 0;
}

.spectrum-console__header {
    display: block;
    padding: 0.85rem 1.15rem;
}

.spectrum-console__header h2 {
    font-size: 1.3rem;
}

.spectrum-console__header p {
    max-width: none;
    margin-top: 0.22rem;
    font-size: 0.78rem;
    line-height: 1.45;
}

.spectrum-toolbar {
    border-bottom: 1px solid var(--spectrum-line);
    background: #0b1115;
}

.spectrum-source {
    grid-template-columns: 16rem minmax(0, 1fr);
    align-items: center;
    border-bottom: 0;
}

.spectrum-source__tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.25rem;
    align-content: center;
    height: 100%;
    padding: 0.55rem 0.7rem;
    border-inline-end: 1px solid var(--spectrum-line);
    background: transparent;
}

.spectrum-source__tabs label > span {
    min-height: 2.45rem;
    padding: 0.45rem 0.5rem;
    justify-content: center;
    gap: 0.35rem;
    font-size: 0.76rem;
    white-space: nowrap;
}

.spectrum-source__tabs svg {
    width: 0.95rem;
    height: 0.95rem;
}

.spectrum-source__panel {
    padding: 0.55rem 0.9rem;
}

.spectrum-source__primary {
    gap: 0.65rem;
    align-items: end;
}

.spectrum-source__panel > p {
    margin-top: 0.3rem;
    font-size: 0.75rem;
    line-height: 1.3;
}

.spectrum-field--device {
    width: min(100%, 17rem);
}

.spectrum-field {
    gap: 0.2rem;
}

.spectrum-field select {
    min-height: 2.35rem;
}

.spectrum-transport {
    padding: 0.5rem 0.7rem;
    gap: 0.4rem;
    border-top: 1px solid var(--spectrum-line);
    border-bottom: 0;
}

.spectrum-transport .spectrum-button,
.spectrum-source__primary .spectrum-button {
    min-height: 2.35rem;
    padding: 0.48rem 0.72rem;
    font-size: 0.75rem;
    white-space: nowrap;
}

.spectrum-toolbar__privacy {
    margin: 0;
    max-width: none;
    padding: 0.15rem 0.9rem 0.55rem;
    color: #82939d;
    font-size: 0.75rem;
    line-height: 1.4;
}

.spectrum-workspace {
    grid-template-columns: minmax(0, 7fr) minmax(15rem, 3fr);
}

.spectrum-primary-view {
    padding: 0;
}

.spectrum-view-switch {
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--spectrum-line);
    background: #0d1419;
}

.spectrum-view-switch button {
    min-height: 2.3rem;
    padding: 0.45rem 0.9rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: #91a2ac;
    font-size: 0.8rem;
    font-weight: var(--font-weight-semibold);
}

.spectrum-view-switch button:hover {
    color: #e5eef0;
}

.spectrum-view-switch button[aria-pressed="true"] {
    border-color: rgb(57 255 182 / 0.3);
    background: rgb(57 255 182 / 0.08);
    color: var(--color-mint);
}

.spectrum-visual-viewport {
    position: relative;
    height: clamp(20rem, 27vw, 23rem);
}

.spectrum-view-panel {
    height: 100%;
    min-height: 0;
    padding: 0.7rem 0.8rem 0.65rem;
    display: flex;
    flex-direction: column;
}

.spectrum-view-panel[hidden] {
    display: none;
}

.spectrum-view-panel .spectrum-panel-header {
    margin-bottom: 0.45rem;
}

.spectrum-view-panel .spectrum-panel-header h3 {
    font-size: 0.91rem;
}

.spectrum-view-panel .spectrum-panel-header p {
    margin-top: 0.05rem;
    font-size: 0.75rem;
}

.spectrum-canvas-wrap {
    min-height: 0;
    flex: 1 1 auto;
}

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

.spectrum-legend {
    margin-top: 0.4rem;
    font-size: 0.72rem;
}

.spectrum-view-panel .spectrum-spectrogram,
.spectrum-view-panel .spectrum-waveform {
    height: 100%;
    min-height: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    border: 0;
}

.spectrum-view-panel .spectrum-spectrogram__canvas,
.spectrum-view-panel .spectrum-waveform canvas {
    min-height: 0;
    flex: 1 1 auto;
}

.spectrum-view-panel .spectrum-spectrogram canvas,
.spectrum-view-panel .spectrum-waveform canvas {
    width: 100%;
    height: 100%;
}

.spectrum-view-panel .spectrum-intensity {
    margin-top: 0.4rem;
}

.spectrum-empty {
    z-index: 1;
}

.spectrum-metrics {
    display: grid;
    grid-template-rows: repeat(4, minmax(0, 1fr)) auto;
    align-content: stretch;
}

.spectrum-metric {
    min-height: 0;
    padding: 0.7rem 0.85rem;
}

.spectrum-metric output {
    margin: 0.28rem 0 0.12rem;
    font-size: clamp(1.3rem, 1.9vw, 1.85rem);
}

.spectrum-metric small {
    font-size: 0.72rem;
}

.spectrum-metrics .spectrum-console__technical {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
    align-items: start;
    margin: 0;
    padding: 0.65rem 0.85rem;
    border-top: 1px solid var(--spectrum-line);
}

.spectrum-metrics .spectrum-console__technical dt {
    font-size: 0.7rem;
    letter-spacing: 0.03em;
}

.spectrum-metrics .spectrum-console__technical dd {
    font-size: 0.75rem;
    overflow-wrap: anywhere;
}

.spectrum-peaks,
.spectrum-bands {
    padding: 0.75rem 1rem;
}

.spectrum-analysis-row .spectrum-panel-header {
    margin-bottom: 0.5rem;
}

.spectrum-analysis-row .spectrum-panel-header p {
    font-size: 0.75rem;
}

.spectrum-peak-list li {
    min-height: 2.1rem;
}

.spectrum-band-meters {
    gap: 0.35rem;
}

.spectrum-settings summary {
    min-height: 3.3rem;
    padding: 0.55rem 0.95rem;
}

.spectrum-settings__grid {
    padding: 0 0.95rem 0.95rem;
}

.spectrum-accuracy-note {
    max-width: none;
    padding: 0.65rem 0.95rem;
    line-height: 1.45;
}

@media (max-width: 70rem) {
    .spectrum-workspace {
        grid-template-columns: minmax(0, 1fr);
    }

    .spectrum-visual-viewport {
        height: 22rem;
    }

    .spectrum-metrics {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        grid-template-rows: auto auto;
    }

    .spectrum-metric {
        min-height: 6rem;
        border-inline-end: 1px solid var(--spectrum-line);
        border-bottom: 0;
    }

    .spectrum-metric:nth-child(4) {
        border-inline-end: 0;
    }

    .spectrum-metrics .spectrum-console__technical {
        grid-column: 1 / -1;
    }
}

@media (max-width: 54rem) {
    .spectrum-source {
        grid-template-columns: 1fr;
    }

    .spectrum-source__tabs {
        height: auto;
        padding: 0.4rem 0.7rem;
        border-inline-end: 0;
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-source__primary {
        display: flex;
    }

    .spectrum-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-template-rows: auto auto auto;
    }

    .spectrum-metric {
        min-height: 5.6rem;
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-metric:nth-child(even) {
        border-inline-end: 0;
    }

    .spectrum-metric:nth-child(4) {
        border-bottom: 0;
    }
}

@media (max-width: 40rem) {
    .spectrum-hero {
        padding: 1.8rem 0 1rem;
    }

    .spectrum-hero h1 {
        font-size: clamp(1.8rem, 7.3vw, 2.65rem);
    }

    .spectrum-console {
        margin-inline: 0;
    }

    .spectrum-console__header {
        padding: 0.8rem;
    }

    .spectrum-source__panel {
        padding: 0.65rem 0.8rem;
    }

    .spectrum-source__primary {
        display: grid;
        grid-template-columns: 1fr;
    }

    .spectrum-field--device {
        width: 100%;
    }

    .spectrum-transport {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        padding: 0.55rem;
    }

    .spectrum-transport .spectrum-button,
    .spectrum-source__primary .spectrum-button {
        min-width: 0;
        min-height: 2.75rem;
        flex: none;
        white-space: normal;
    }

    .spectrum-transport__spacer {
        display: none;
    }

    .spectrum-visual-viewport {
        height: 18.5rem;
    }

    .spectrum-view-switch {
        padding: 0.4rem;
    }

    .spectrum-view-switch button {
        min-width: 0;
        min-height: 2.75rem;
        flex: 1 1 0;
        padding: 0.45rem 0.25rem;
        font-size: 0.77rem;
    }

    .spectrum-view-panel {
        padding: 0.55rem;
    }

    .spectrum-view-panel .spectrum-panel-header {
        display: flex;
        flex-wrap: wrap;
        gap: 0.2rem 0.5rem;
    }

    .spectrum-cursor-readout {
        text-align: start;
    }

    .spectrum-view-panel .spectrum-spectrogram canvas {
        min-height: 0;
        object-fit: fill;
    }

    .spectrum-metric {
        min-height: 5.4rem;
        padding: 0.65rem;
        border-inline-end: 1px solid var(--spectrum-line);
    }

    .spectrum-metric:nth-child(4) {
        border-bottom: 0;
    }

    .spectrum-metric output {
        font-size: 1.25rem;
    }

    .spectrum-metrics .spectrum-console__technical {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        padding: 0.65rem;
    }

    .spectrum-peaks,
    .spectrum-bands {
        padding: 0.75rem;
    }

    .spectrum-settings summary {
        min-height: 3.5rem;
    }
}

@media (max-width: 24rem) {
    .spectrum-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .spectrum-metric,
    .spectrum-metric:nth-child(even) {
        border-bottom: 1px solid var(--spectrum-line);
    }

    .spectrum-metric:nth-last-of-type(-n + 2) {
        border-bottom: 0;
    }

    .spectrum-metrics .spectrum-console__technical {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* Analyzer selects share one inset chevron and control frame. */
.spectrum-tool select {
    width: 100%;
    min-width: 0;
    height: 2.65rem;
    min-height: 2.65rem;
    padding: 0.5rem 2.8rem 0.5rem 0.85rem;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    border: 1px solid var(--spectrum-line);
    border-radius: var(--radius-sm);
    background-color: #0b1115;
    background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2014%209'%3E%3Cpath%20d='M1%201.25%207%207%2013%201.25'%20fill='none'%20stroke='%239fb0b9'%20stroke-width='1.8'%20stroke-linecap='round'%20stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.95rem center;
    background-size: 0.82rem 0.55rem;
    color: var(--color-text);
    font-size: 0.82rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.spectrum-tool select::-ms-expand {
    display: none;
}

.spectrum-tool select:hover:not(:disabled) {
    border-color: #425863;
}

.spectrum-tool select:focus-visible {
    border-color: var(--color-mint);
    outline: 2px solid var(--focus-ring-color);
    outline-offset: 2px;
}

.spectrum-tool select:disabled {
    color: #85949e;
}

.spectrum-tool select option {
    background: #0b1115;
    color: var(--color-text);
}

.spectrum-empty p {
    color: #a5b7bf;
}

@media (max-width: 40rem) {
    .view-comparison {
        grid-template-columns: minmax(0, 1fr);
    }

    .view-comparison__heading {
        flex-wrap: wrap;
    }

    .view-comparison__plot {
        height: 13.5rem;
    }
}