/* ============================================================
   Dominant Frequency Finder — Tool Styles
   ============================================================ */

/* ── Dominant Hz Display ── */
.dominant-display {
    text-align: center;
    padding: var(--space-md) 0 var(--space-sm);
}

.dominant-display__hz {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 8vw, 4.5rem);
    color: var(--color-primary);
    text-shadow: 0 0 28px rgba(0, 255, 65, 0.5);
    line-height: 1;
    letter-spacing: 0.03em;
    transition: color 0.15s ease, text-shadow 0.15s ease;
}

.dominant-display__hz--active {
    text-shadow: 0 0 40px rgba(0, 255, 65, 0.8), 0 0 80px rgba(0, 255, 65, 0.25);
}

.dominant-display__note {
    font-family: var(--font-mono);
    font-size: var(--fs-md);
    color: var(--color-secondary);
    margin-top: 4px;
    letter-spacing: 0.08em;
}

/* ── Energy Dominance Bar ── */
.energy-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: var(--space-sm) 0;
}

.energy-row__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    white-space: nowrap;
    min-width: 72px;
}

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

.energy-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00e5ff 0%, #00ff41 100%);
    border-radius: var(--radius-full);
    transition: width 0.15s ease;
}

.energy-pct {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-primary);
    font-weight: 700;
    min-width: 40px;
    text-align: right;
}

/* ── Band Badge ── */
.band-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    transition: all 0.2s ease;
    margin-bottom: var(--space-sm);
}

/* Band-specific colors */
.band-badge--sub-bass  { background: rgba(124, 77, 255, 0.15); border-color: #7c4dff; color: #7c4dff; }
.band-badge--bass      { background: rgba(41, 121, 255, 0.15); border-color: #2979ff; color: #2979ff; }
.band-badge--low-mid   { background: rgba(0, 229, 255, 0.15);  border-color: #00e5ff; color: #00e5ff; }
.band-badge--mid       { background: rgba(0, 230, 118, 0.15);  border-color: #00e676; color: #00e676; }
.band-badge--high-mid  { background: rgba(255, 179, 0, 0.15);  border-color: #ffb300; color: #ffb300; }
.band-badge--presence  { background: rgba(255, 109, 0, 0.15);  border-color: #ff6d00; color: #ff6d00; }
.band-badge--air       { background: rgba(255, 23,  68, 0.15); border-color: #ff1744; color: #ff1744; }

/* ── Peak Hold Row ── */
.peak-hold-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

.peak-hold-row__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.peak-hold-row__value {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-warning);
    font-weight: 700;
    flex: 1;
}

/* ── Mode Switcher ── */
.mode-switcher {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-bottom: var(--space-sm);
}

.mode-btn {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    padding: 8px 6px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
    white-space: nowrap;
}

.mode-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.mode-btn--active {
    background: rgba(0, 255, 65, 0.1);
    border-color: var(--color-primary);
    color: var(--color-primary);
    font-weight: 700;
}

.mode-btn--room.mode-btn--active    { background: rgba(0, 229, 255, 0.1);  border-color: #00e5ff; color: #00e5ff; }
.mode-btn--hum.mode-btn--active     { background: rgba(255, 179, 0, 0.1);  border-color: #ffb300; color: #ffb300; }
.mode-btn--tinnitus.mode-btn--active{ background: rgba(255, 23, 68, 0.1);  border-color: #ff1744; color: #ff1744; }

/* Mode hint banner */
.mode-hint {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    padding: 6px 10px;
    border-left: 3px solid var(--color-primary);
    background: rgba(0, 255, 65, 0.04);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: var(--space-sm);
    display: none;
}

.mode-hint--visible { display: block; }
.mode-hint--room     { border-color: #00e5ff; background: rgba(0, 229, 255, 0.04); color: #00e5ff; }
.mode-hint--hum      { border-color: #ffb300; background: rgba(255, 179, 0, 0.04);  color: #ffb300; }
.mode-hint--tinnitus { border-color: #ff1744; background: rgba(255, 23, 68, 0.04);  color: #ff1744; }

/* ── Range Filter ── */
.range-filter {
    margin-bottom: var(--space-sm);
}

.range-filter__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: 4px;
    display: block;
}

.range-filter__inputs {
    display: flex;
    align-items: center;
    gap: 6px;
}

.range-input {
    width: 80px;
    padding: 5px 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    text-align: center;
}

.range-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.range-sep {
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

/* ── Tone Match ── */
.tone-match {
    padding: var(--space-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

.tone-match__row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: 6px;
}

.tone-match__row:last-child { margin-bottom: 0; }

.tone-fine-label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    min-width: 56px;
    text-align: right;
}

.tone-playing {
    color: #00e676;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ── FFT Spectrum Canvas ── */
.spectrum-wrap {
    position: relative;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

#spectrum-canvas {
    display: block;
    width: 100%;
    height: 160px;
}

/* ── Runners-Up ── */
.runners-up {
    margin-bottom: var(--space-sm);
}

.runner-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 5px 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 4px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    transition: border-color 0.15s;
}

.runner-row__rank {
    color: var(--color-text-muted);
    min-width: 16px;
}

.runner-row__hz {
    color: var(--color-secondary);
    font-weight: 700;
    min-width: 72px;
}

.runner-row__db {
    color: var(--color-text-muted);
    min-width: 50px;
}

.runner-row__note {
    color: var(--color-primary);
    flex: 1;
}

.runner-row__band {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    border: 1px solid currentColor;
}

/* ── Octave Band Chart ── */
.octave-bands-wrap {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.octave-band-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 5px;
}

.octave-band-row:last-child { margin-bottom: 0; }

.octave-band-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-muted);
    min-width: 38px;
    text-align: right;
}

.octave-band-track {
    flex: 1;
    height: 10px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.octave-band-fill {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    transition: width 0.1s ease;
}

.octave-band-fill--dominant {
    box-shadow: 0 0 8px currentColor;
}

.octave-band-db {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-muted);
    min-width: 40px;
    text-align: right;
}

/* ── Dominant Timeline ── */
.timeline-wrap {
    position: relative;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

#timeline-canvas {
    display: block;
    width: 100%;
    height: 100px;
}

/* ── Session Stats ── */
.dom-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-top: var(--space-sm);
}

/* ── History Table ── */
.dom-history-wrap {
    max-height: 160px;
    overflow-y: auto;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-top: var(--space-sm);
}

.dom-history-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
}

.dom-history-table th {
    position: sticky;
    top: 0;
    background: var(--color-surface);
    color: var(--color-text-muted);
    font-weight: 600;
    padding: 4px 8px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.dom-history-table td {
    padding: 3px 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    color: var(--color-text);
}

.dom-history-table tr:last-child td { border-bottom: none; }
.dom-history-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

/* ── Scrollbar ── */
.dom-history-wrap::-webkit-scrollbar { width: 4px; }
.dom-history-wrap::-webkit-scrollbar-track { background: transparent; }
.dom-history-wrap::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

/* ── Privacy Callout (shared pattern) ── */
.privacy-callout {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 255, 65, 0.04);
    border: 1px solid rgba(0, 255, 65, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.privacy-callout__icon { font-size: 1rem; }

.browser-badges {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-left: auto;
}

.browser-badge {
    padding: 2px 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 10px;
    color: var(--color-text-muted);
}

/* ── Keyboard hints row ── */
.kbd-hints {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.kbd-hint {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.kbd-hint kbd {
    display: inline-block;
    padding: 2px 6px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text);
}

/* ── Stability Indicator ── */
.stability-indicator {
    display: block;
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    letter-spacing: 0.1em;
    padding: 3px 0 var(--space-sm);
    min-height: 1.4em;
    transition: color 0.2s ease;
}

.stability--stable   { color: #00e676; }
.stability--drifting { color: #ffb300; }
.stability--unstable { color: #ff1744; }

/* ── Spectrum Tooltip ── */
.spectrum-tooltip {
    position: absolute;
    top: 6px;
    left: 0;
    display: none;
    background: rgba(10, 10, 10, 0.9);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    padding: 3px 8px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-primary);
    white-space: nowrap;
    pointer-events: none;
    z-index: 10;
}

/* ── Calibrate Progress Bar ── */
.calibrate-progress-wrap {
    height: 3px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-sm);
    display: none;
}
.calibrate-progress-wrap--visible { display: block; }

#calibrate-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00e5ff 0%, #00ff41 100%);
    border-radius: var(--radius-full);
    transition: width 0.05s linear;
    display: none;
}

/* ── Hum Auto-Diagnosis Card ── */
.hum-diagnosis {
    display: none;
    background: rgba(255, 179, 0, 0.06);
    border: 1px solid #ffb300;
    border-left: 4px solid #ffb300;
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.hum-diagnosis__title {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    font-weight: 700;
    color: #ffb300;
    margin-bottom: 6px;
}

.hum-diagnosis__label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 2px;
}

.hum-diagnosis__text {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text);
    margin-bottom: 8px;
    line-height: 1.5;
}

.hum-diagnosis__text:last-child { margin-bottom: 0; }

/* ── Tinnitus Match Indicator ── */
.tinnitus-match {
    display: none;
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    font-weight: 700;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    background: rgba(255, 23, 68, 0.08);
    border: 1px solid #ff1744;
    color: #ff1744;
    margin-top: 6px;
    letter-spacing: 0.06em;
    transition: all 0.2s ease;
}

.tinnitus-match--close {
    background: rgba(255, 179, 0, 0.08);
    border-color: #ffb300;
    color: #ffb300;
}

.tinnitus-match--match {
    background: rgba(0, 230, 118, 0.12);
    border-color: #00e676;
    color: #00e676;
    box-shadow: 0 0 12px rgba(0, 230, 118, 0.3);
    animation: matchPulse 1.2s ease-in-out infinite;
}

@keyframes matchPulse {
    0%, 100% { box-shadow: 0 0 8px rgba(0, 230, 118, 0.3); }
    50%       { box-shadow: 0 0 20px rgba(0, 230, 118, 0.6); }
}

/* ── Hum Reference Table ── */
.hum-ref-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    margin-top: var(--space-md);
}

.hum-ref-table th {
    background: var(--color-surface);
    color: var(--color-text-muted);
    font-weight: 600;
    padding: 6px 10px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.hum-ref-table td {
    padding: 5px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    color: var(--color-text);
}

.hum-ref-table tr:last-child td { border-bottom: none; }
.hum-ref-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

.hum-hz { color: var(--color-primary); font-weight: 700; }

/* ── Responsive ── */
/* FIX #9 — stack tool grid on mobile */
@media (max-width: 768px) {
    .tool-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 640px) {
    .dominant-display__hz { font-size: clamp(2.2rem, 10vw, 3.5rem); }
    .mode-switcher { grid-template-columns: 1fr 1fr; }
    .dom-stats { grid-template-columns: repeat(2, 1fr); }
    #spectrum-canvas { height: 120px; }
    .hum-ref-table { font-size: 10px; }
    .hum-ref-table th, .hum-ref-table td { padding: 4px 6px; }
}