/* ============================================================
   Guitar Resonance Frequency Finder — Tool Styles
   ============================================================ */

/* ── Tap Test Instruction Banner ── */
.tap-instruction {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: var(--radius-md);
}

.tap-instruction__icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.tap-instruction__text {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-text);
    line-height: 1.6;
}

.tap-instruction__text strong {
    color: var(--color-secondary);
}

/* ── Resonance Peak Display (Hero) ── */
.resonance-display {
    text-align: center;
    padding: var(--space-lg) 0 var(--space-md);
}

.resonance-display__freq-wrap {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-xs);
}

.resonance-display__freq {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 9vw, 5.5rem);
    color: var(--color-primary);
    text-shadow: 0 0 24px rgba(0, 255, 65, 0.5);
    line-height: 1;
    letter-spacing: 0.05em;
    transition: color 0.2s ease, text-shadow 0.2s ease;
}

.resonance-display__unit {
    font-family: var(--font-mono);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--color-text-muted);
    line-height: 1;
}

.resonance-display__note {
    text-align: center;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    color: var(--color-secondary);
    text-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
    margin-top: var(--space-xs);
}

.resonance-display__sub {
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* ── Peak Hold Display ── */
.peak-hold-display {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.peak-hold-display__title {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.peak-hold-display__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 3px 0;
    border-bottom: 1px solid rgba(15, 61, 30, 0.2);
}

.peak-hold-display__row:last-child {
    border-bottom: none;
}

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

.peak-hold-display__value {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-primary);
    font-weight: 700;
}

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

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

.stat-box__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.stat-box__value {
    font-family: var(--font-display);
    font-size: var(--fs-md);
    color: var(--color-primary);
}

/* ── Wolf Notes Panel ── */
.wolf-notes-panel {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 23, 68, 0.04);
    border: 1px solid rgba(255, 23, 68, 0.2);
    border-radius: var(--radius-md);
}

.wolf-notes-panel__title {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-error, #ff1744);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-xs);
    font-weight: 700;
}

.wolf-notes-panel__desc {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    line-height: 1.5;
}

.wolf-notes-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.wolf-notes-list__empty {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    font-style: italic;
}

.wolf-note-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: transform 0.15s ease;
}

.wolf-note-badge:hover {
    transform: scale(1.05);
}

.wolf-note-badge--danger {
    background: rgba(255, 23, 68, 0.15);
    border: 1px solid rgba(255, 23, 68, 0.4);
    color: #ff1744;
}

.wolf-note-badge--warning {
    background: rgba(255, 179, 0, 0.12);
    border: 1px solid rgba(255, 179, 0, 0.35);
    color: #ffb300;
}

/* ── Spectrum Canvas ── */
.spectrum-wrap {
    width: 100%;
    height: 280px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

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

/* ── Before/After Comparison ── */
.comparison-panel {
    margin-top: var(--space-sm);
}

.comparison-status {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
}

.comparison-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    border-radius: var(--radius-full);
    letter-spacing: 0.03em;
}

.comparison-badge--empty {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.comparison-badge--captured {
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid rgba(0, 255, 65, 0.3);
    color: var(--color-primary);
}

.comparison-wrap {
    width: 100%;
    height: 220px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

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

.comparison-diff {
    margin-top: var(--space-sm);
    padding: var(--space-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text);
    line-height: 1.6;
}

.comparison-diff__shift-up {
    color: var(--color-primary);
    font-weight: 700;
}

.comparison-diff__shift-down {
    color: var(--color-secondary);
    font-weight: 700;
}

.comparison-diff__no-change {
    color: var(--color-text-muted);
}

/* ── Body Type Comparison Grid ── */
.body-type-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.body-type-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    text-align: center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.body-type-card:hover {
    border-color: rgba(0, 255, 65, 0.3);
}

.body-type-card--match {
    border-color: var(--color-primary);
    box-shadow: 0 0 12px rgba(0, 255, 65, 0.15);
}

.body-type-card--close {
    border-color: rgba(255, 179, 0, 0.5);
    box-shadow: 0 0 8px rgba(255, 179, 0, 0.1);
}

.body-type-card__icon {
    font-size: 1.5rem;
    margin-bottom: 2px;
}

.body-type-card__name {
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    color: var(--color-primary);
    margin-bottom: 2px;
}

.body-type-card__freq {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-secondary);
    font-weight: 700;
}

.body-type-card__range {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.body-type-card__match {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    padding-top: var(--space-xs);
    border-top: 1px solid rgba(15, 61, 30, 0.3);
    min-height: 20px;
}

.body-type-card__match--best {
    color: var(--color-primary);
    font-weight: 700;
}

.body-type-card__match--close {
    color: var(--color-warning, #ffb300);
    font-weight: 600;
}

/* ── Export Actions ── */
.export-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

/* ── Tool Grid Layout ── */
.tool-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: var(--space-md);
}

.tool-panel {
    min-width: 0;
}

.tool-panel__title {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

/* ── LOG badge ── */
.badge-log {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    padding: 1px 5px;
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-full);
    color: var(--color-secondary);
    vertical-align: middle;
    letter-spacing: 0.08em;
}

/* ── Privacy Callout ── */
.privacy-callout {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: 10px var(--space-md);
    margin-bottom: var(--space-md);
    background: rgba(0, 255, 65, 0.04);
    border: 1px solid rgba(0, 255, 65, 0.15);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.privacy-callout__icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

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

.browser-badge {
    padding: 2px 8px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ── Keyboard Shortcut Hints ── */
.kbd-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: var(--space-xs);
    margin-bottom: var(--space-sm);
    justify-content: center;
}

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

.kbd-hint kbd {
    display: inline-block;
    padding: 1px 6px;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    background: var(--color-surface);
    font-size: 0.65rem;
    color: var(--color-primary);
}

/* ── Mic Active Indicator ── */
.mic-active {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-right: 6px;
    animation: micPulse 1s ease-in-out infinite;
}

@keyframes micPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 65, 0.6); }
    50% { box-shadow: 0 0 0 6px rgba(0, 255, 65, 0); }
}

/* ── Select / Input Styles ── */
.select {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text);
}

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

.control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.control-group__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

    .resonance-display__freq {
        font-size: 3rem;
    }

    .spectrum-wrap {
        height: 220px;
    }

    .body-type-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .comparison-wrap {
        height: 180px;
    }
}

@media (max-width: 480px) {
    .body-type-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stats-row {
        grid-template-columns: repeat(3, 1fr);
    }

    .tap-instruction {
        flex-direction: column;
        text-align: center;
        gap: var(--space-sm);
    }

    .comparison-status {
        flex-direction: column;
    }

    .wolf-notes-list {
        gap: 4px;
    }
}