/* ============================================================
 *  MOTHER TOOL — THE Frequency Detector (Homepage)
 *  Styles for the ultimate frequency detection widget
 * ============================================================ */

/* ── Section wrapper ── */
.mother-tool-section {
    padding: var(--space-xl) 0 var(--space-lg);
}

.mother-tool {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.mother-tool::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-secondary), var(--color-primary), transparent);
    opacity: 0.6;
}

/* ── Header ── */
.mt-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.mt-header__title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 2rem);
    color: var(--color-primary);
    text-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
    margin: 0 0 var(--space-xs);
}

.mt-header__sub {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ── Use-case tags ── */
.mt-use-cases {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.mt-use-tag {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    padding: 3px 10px;
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: rgba(0, 229, 255, 0.04);
}

/* ── Actions bar ── */
.mt-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--space-sm);
}

.mt-privacy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(0, 255, 65, 0.04);
    border: 1px solid rgba(0, 255, 65, 0.12);
    border-radius: var(--radius-md);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    text-align: center;
}

/* ── Mic indicator ── */
.mt-mic-indicator {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.mt-mic-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff1744;
    animation: mt-pulse 1s ease infinite;
}

@keyframes mt-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ── Main grid: left panel + right panel ── */
.mt-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

/* ── Left panel ── */
.mt-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Gauge container */
.mt-gauge-wrap {
    text-align: center;
}

.mt-gauge-wrap svg {
    width: 260px;
    max-width: 100%;
    height: auto;
}

.mt-hz-display {
    font-family: var(--font-display);
    font-size: 2.8rem;
    fill: var(--color-primary);
    filter: drop-shadow(0 0 12px rgba(0, 255, 65, 0.3));
}

.mt-note-display {
    font-family: var(--font-display);
    font-size: 1.1rem;
    fill: var(--color-secondary);
}

.mt-gauge-arc-bg {
    fill: none;
    stroke: rgba(0, 255, 65, 0.08);
    stroke-width: 10;
    stroke-linecap: round;
}

.mt-gauge-arc-fill {
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 10;
    stroke-linecap: round;
    filter: drop-shadow(0 0 6px rgba(0, 255, 65, 0.4));
    transition: stroke-dashoffset 0.1s ease;
}

/* Wavelength display */
.mt-wavelength {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: -4px;
    margin-bottom: var(--space-xs);
}

/* Tuning badge */
.mt-tuning-badge {
    font-family: var(--font-display);
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 700;
    text-align: center;
    padding: 6px 20px;
    border-radius: var(--radius-md);
    letter-spacing: 0.08em;
    margin-bottom: var(--space-sm);
    transition: all 0.2s ease;
}

.mt-tuning-badge--intune {
    color: #00c853;
    background: rgba(0, 200, 83, 0.1);
    border: 2px solid rgba(0, 200, 83, 0.4);
    text-shadow: 0 0 12px rgba(0, 200, 83, 0.4);
}

.mt-tuning-badge--close {
    color: #ffb300;
    background: rgba(255, 179, 0, 0.08);
    border: 2px solid rgba(255, 179, 0, 0.3);
}

.mt-tuning-badge--off {
    color: #ff1744;
    background: rgba(255, 23, 68, 0.08);
    border: 2px solid rgba(255, 23, 68, 0.3);
}

.mt-tuning-badge--waiting {
    color: var(--color-text-muted);
    background: transparent;
    border: 2px solid var(--color-border);
}

/* Target vs Detected comparison */
.mt-target-compare {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
}

.mt-target-compare__label {
    text-transform: uppercase;
    font-size: 0.55rem;
    letter-spacing: 0.06em;
}

.mt-target-compare__value {
    color: var(--color-primary);
    font-weight: bold;
}

.mt-target-compare__vs {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.mt-target-compare__diff {
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: var(--radius-full);
}

.mt-target-compare__diff--good { color: #00c853; background: rgba(0, 200, 83, 0.1); }
.mt-target-compare__diff--ok { color: #ffb300; background: rgba(255, 179, 0, 0.1); }
.mt-target-compare__diff--bad { color: #ff1744; background: rgba(255, 23, 68, 0.1); }

/* Cents meter */
.mt-cents-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.mt-cents-label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    min-width: 50px;
}

.mt-cents-track {
    flex: 1;
    height: 18px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}

.mt-cents-center {
    position: absolute;
    top: 2px;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 30%;
    background: rgba(0, 200, 83, 0.12);
    border-radius: var(--radius-full);
}

.mt-cents-needle {
    position: absolute;
    top: 2px;
    bottom: 2px;
    width: 6px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 8px rgba(0, 255, 65, 0.6);
    transition: left 0.1s ease;
}

.mt-cents-value {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    min-width: 55px;
    text-align: right;
}

/* dB meter */
.mt-db-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mt-db-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.mt-db-label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    min-width: 50px;
}

.mt-db-track {
    flex: 1;
    height: 14px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.mt-db-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00c853, #00ff41 60%, #ffb300 80%, #ff1744 95%);
    border-radius: var(--radius-full);
    transition: width 0.08s ease;
}

.mt-db-peak {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #ff1744;
    transition: left 0.05s ease;
}

.mt-db-value {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    min-width: 70px;
    text-align: right;
}

/* Confidence bar */
.mt-conf-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.mt-conf-label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    min-width: 50px;
}

.mt-conf-track {
    flex: 1;
    height: 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.mt-conf-fill {
    height: 100%;
    width: 0%;
    background: var(--color-success, #00c853);
    border-radius: var(--radius-full);
    transition: width 0.15s ease, background 0.2s ease;
}

.mt-conf-value {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    min-width: 35px;
    text-align: right;
}

/* Band + Stability badges */
.mt-badges {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.mt-badge {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 3px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.mt-badge--band {
    border-color: rgba(0, 229, 255, 0.3);
    color: var(--color-secondary);
}

.mt-badge--stable {
    border-color: rgba(0, 200, 83, 0.3);
    color: #00c853;
}

.mt-badge--unstable {
    border-color: rgba(255, 183, 0, 0.3);
    color: #ffb300;
}

/* Diagnosis card */
.mt-diagnosis {
    background: rgba(0, 255, 65, 0.03);
    border: 1px solid rgba(0, 255, 65, 0.1);
    border-left: 4px solid var(--color-text-muted);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    min-height: 70px;
    transition: border-left-color 0.3s ease;
}

.mt-diagnosis--noise {
    border-left-color: #ff9800;
}

.mt-diagnosis--intune {
    border-left-color: #00c853;
}

.mt-diagnosis--offtune {
    border-left-color: #ffb300;
}

.mt-diagnosis--music {
    border-left-color: var(--color-secondary);
}

.mt-diagnosis__title {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    font-weight: bold;
}

.mt-diagnosis__text {
    font-size: var(--fs-sm);
    color: var(--color-text);
    line-height: 1.5;
}

.mt-diagnosis__detail {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    margin-top: 4px;
    font-family: var(--font-mono);
}

.mt-diagnosis__icon {
    font-size: 1.2rem;
    margin-right: 6px;
}

/* ── Right panel ── */
.mt-right {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

/* Canvas wrappers */
.mt-canvas-wrap {
    width: 100%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

.mt-canvas-wrap--spectrogram { height: 180px; }
.mt-canvas-wrap--spectrum    { height: 120px; }
.mt-canvas-wrap--waveform    { height: 80px; }

.mt-canvas-wrap canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.mt-canvas-label {
    position: absolute;
    top: 4px;
    left: 8px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: rgba(0, 229, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    pointer-events: none;
    z-index: 1;
}

/* ── Piano keyboard ── */
.mt-piano-section {
    margin-bottom: var(--space-md);
}

.mt-piano-title {
    font-family: var(--font-display);
    font-size: var(--fs-xs);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-xs);
    text-align: center;
}

.mt-piano {
    position: relative;
    height: 80px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
}

/* Black keys now positioned absolutely on the piano container */
.mt-piano > .mt-piano-key--black {
    position: absolute;
    height: 55%;
    top: 0;
    z-index: 2;
    flex: none;
}

.mt-piano-key {
    flex: 1;
    border-right: 1px solid rgba(0, 255, 65, 0.06);
    position: relative;
    cursor: pointer;
    transition: background 0.08s ease;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 4px;
}

.mt-piano-key:last-child { border-right: none; }

.mt-piano-key span {
    font-family: var(--font-mono);
    font-size: 0.5rem;
    color: rgba(255, 255, 255, 0.15);
    pointer-events: none;
}

.mt-piano-key--white {
    background: rgba(255, 255, 255, 0.04);
}

.mt-piano-key--black {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 4px 4px;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 2px;
}

.mt-piano-key--black span { font-size: 0.4rem; }

.mt-piano-key--active {
    background: rgba(0, 255, 65, 0.35) !important;
    box-shadow: inset 0 0 12px rgba(0, 255, 65, 0.3);
}

.mt-piano-key--active span {
    color: var(--color-primary) !important;
}

/* ── Octave bands ── */
.mt-bands {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    margin-bottom: var(--space-md);
}

.mt-band {
    text-align: center;
}

.mt-band__bar-wrap {
    height: 50px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    position: relative;
}

.mt-band__bar {
    width: 100%;
    background: linear-gradient(0deg, #00ff41, #00e5ff);
    transition: height 0.1s ease;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.mt-band__name {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    color: var(--color-text-muted);
    margin-top: 3px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mt-band__pct {
    font-family: var(--font-mono);
    font-size: 0.5rem;
    color: var(--color-secondary);
}

/* ── Full-width pitch timeline ── */
.mt-timeline-wrap {
    margin-bottom: var(--space-md);
}

.mt-timeline-canvas-wrap {
    width: 100%;
    height: 100px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

.mt-timeline-canvas-wrap canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* ── Bottom row: Peaks + Stats + Controls ── */
.mt-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.mt-panel {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
}

.mt-panel__title {
    font-family: var(--font-display);
    font-size: var(--fs-xs);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-xs);
}

/* Peaks table */
.mt-peaks-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
}

.mt-peaks-table th {
    text-align: left;
    color: var(--color-text-muted);
    font-weight: normal;
    padding: 2px 4px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mt-peaks-table td {
    padding: 3px 4px;
    border-bottom: 1px solid rgba(15, 61, 30, 0.2);
    color: var(--color-text);
}

.mt-peaks-table .peak-rank {
    color: var(--color-secondary);
    font-weight: bold;
}

.mt-harmonic-label {
    font-size: 0.6rem;
    color: #ff9800;
    font-weight: bold;
}

.mt-amp-bar {
    display: inline-block;
    height: 6px;
    background: var(--color-primary);
    border-radius: 3px;
    vertical-align: middle;
    margin-right: 4px;
    opacity: 0.7;
}

/* Stats */
.mt-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
}

.mt-stat {
    text-align: center;
    padding: var(--space-xs);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.mt-stat__label {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mt-stat__value {
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    color: var(--color-primary);
}

/* Controls */
.mt-control-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: var(--space-xs);
}

.mt-control-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}

.mt-control-row label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.mt-control-row span {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-primary);
}

.mt-control-row select,
.mt-control-row input[type="number"] {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    padding: 3px 6px;
    border-radius: var(--radius-sm);
    max-width: 100px;
}

.mt-control-row input[type="range"] {
    flex: 1;
    accent-color: var(--color-primary);
}

.mt-export-btns {
    display: flex;
    gap: var(--space-xs);
    margin-top: var(--space-xs);
}

.mt-export-btns .btn {
    font-size: var(--fs-xs);
    padding: 4px 10px;
}

/* ── File upload ── */
.mt-dropzone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
    margin-bottom: var(--space-md);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.mt-dropzone:hover,
.mt-dropzone--active {
    border-color: var(--color-primary);
    background: rgba(0, 255, 65, 0.03);
}

.mt-dropzone input { display: none; }

/* Upload progress */
.mt-upload-progress {
    width: 100%;
    margin-top: var(--space-sm);
}

.mt-upload-progress__bar {
    width: 100%;
    height: 6px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 4px;
}

.mt-upload-progress__fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

.mt-upload-progress__text {
    font-size: 0.65rem;
    color: var(--color-secondary);
}

/* ── Keyboard hints ── */
.mt-kbd-hints {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.mt-kbd-hints kbd {
    display: inline-block;
    padding: 1px 6px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-surface);
    color: var(--color-secondary);
    font-size: 0.65rem;
    box-shadow: 0 1px 0 var(--color-border);
    margin-right: 3px;
}

/* ── Deep link cards ── */
.mt-deep-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
}

.mt-deep-link {
    display: block;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    transition: border-color 0.2s ease, transform 0.15s ease;
    text-align: center;
}

.mt-deep-link:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.mt-deep-link__icon { font-size: 1.2rem; }

.mt-deep-link__name {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text);
    display: block;
    margin-top: 4px;
}

.mt-deep-link__arrow {
    font-size: var(--fs-xs);
    color: var(--color-primary);
}

/* Freeze badge */
.mt-freeze-badge {
    display: none;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: #00e5ff;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.3);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    animation: mt-pulse 1.5s ease infinite;
}

.mt-freeze-badge.active { display: inline-block; }

/* ── Responsive ── */
@media (max-width: 900px) {
    .mt-grid {
        grid-template-columns: 1fr;
    }

    .mt-gauge-wrap svg { width: 200px; }

    .mt-bottom {
        grid-template-columns: 1fr;
    }

    .mt-deep-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .mt-bands {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 480px) {
    .mother-tool {
        padding: var(--space-md);
    }

    .mt-header__title { font-size: 1.2rem; }

    .mt-deep-links {
        grid-template-columns: 1fr 1fr;
    }

    .mt-bands {
        grid-template-columns: repeat(4, 1fr);
    }

    .mt-piano { height: 60px; }

    .mt-canvas-wrap--spectrogram { height: 130px; }
    .mt-canvas-wrap--spectrum    { height: 90px; }
    .mt-canvas-wrap--waveform    { height: 60px; }
}