/* ============================================================
   Vocal Pitch Checker — Tool Styles
   ============================================================ */

/* ── Giant Accuracy Percentage Display ── */
.accuracy-display {
    text-align: center;
    padding: var(--space-lg) 0 var(--space-sm);
}

.accuracy-display__pct {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 7rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: 0.02em;
    color: var(--color-text-muted);
    text-shadow: none;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.accuracy-display__pct--high {
    color: #00e676;
    text-shadow: 0 0 30px rgba(0, 230, 118, 0.5), 0 0 60px rgba(0, 230, 118, 0.2);
}

.accuracy-display__pct--mid {
    color: var(--color-warning);
    text-shadow: 0 0 24px rgba(255, 179, 0, 0.5), 0 0 50px rgba(255, 179, 0, 0.15);
}

.accuracy-display__pct--low {
    color: var(--color-error);
    text-shadow: 0 0 24px rgba(255, 23, 68, 0.5), 0 0 50px rgba(255, 23, 68, 0.15);
}

.accuracy-display__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--space-xs);
}

/* ── Pass / Fail Badge ── */
.passfail-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    margin: 0 auto var(--space-md);
    max-width: 280px;
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.2s ease;
}

.passfail-badge--idle {
    color: var(--color-text-muted);
    background: rgba(128, 128, 128, 0.08);
    border: 2px solid var(--color-border);
}

.passfail-badge--pass {
    color: #00e676;
    background: rgba(0, 230, 118, 0.1);
    border: 2px solid rgba(0, 230, 118, 0.5);
    animation: passPulse 1s ease-in-out;
}

.passfail-badge--fail {
    color: var(--color-error);
    background: rgba(255, 23, 68, 0.1);
    border: 2px solid rgba(255, 23, 68, 0.5);
}

.passfail-badge__icon {
    font-size: 1.5rem;
    line-height: 1;
}

@keyframes passPulse {
    0% { transform: scale(1); }
    30% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ── Current Note Row ── */
.current-note-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.current-note {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--color-primary);
    text-shadow: 0 0 12px rgba(0, 255, 65, 0.4);
    text-align: center;
    padding: var(--space-xs) 0;
}

/* ── Vibrato Indicator ── */
.vibrato-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.vibrato-indicator__bar {
    flex: 1;
    height: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.vibrato-indicator__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-secondary), #7c4dff);
    border-radius: var(--radius-full);
    transition: width 0.2s ease;
}

.vibrato-indicator__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    min-width: 100px;
    text-align: right;
    white-space: nowrap;
}

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

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

/* ── Key Selector ── */
.key-select {
    font-family: var(--font-mono);
}

/* ── Key Notes Display ── */
.key-notes-display {
    margin-top: var(--space-sm);
}

.key-notes-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: var(--space-xs);
}

.key-note-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 4px 10px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-secondary);
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.25);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.key-note-chip--active {
    color: #00e676;
    background: rgba(0, 230, 118, 0.15);
    border-color: rgba(0, 230, 118, 0.5);
    box-shadow: 0 0 8px rgba(0, 230, 118, 0.3);
}

/* ── Practice Target ── */
.practice-target {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 229, 255, 0.06);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

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

.practice-target__note {
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    color: var(--color-secondary);
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
    font-weight: 700;
}

/* ── Voice Range Tracker ── */
.range-tracker {
    margin-top: var(--space-xs);
}

.range-tracker__bar {
    height: 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.range-tracker__fill {
    position: absolute;
    top: 0;
    bottom: 0;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
    border-radius: var(--radius-full);
    transition: left 0.3s ease, width 0.3s ease;
    box-shadow: 0 0 8px rgba(0, 255, 65, 0.3);
}

.range-tracker__labels {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-top: 4px;
}

.range-tracker__labels span:nth-child(2) {
    color: var(--color-secondary);
}

/* ── Session Stats ── */
.session-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
    margin-top: var(--space-xs);
}

.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);
}

/* ── Results Card (screenshot-friendly) ── */
.results-card {
    background: linear-gradient(135deg, #0d1117, #161b22);
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    margin-top: var(--space-md);
    animation: cardAppear 0.4s ease;
}

@keyframes cardAppear {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.results-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 229, 255, 0.06);
    border-bottom: 1px solid rgba(0, 229, 255, 0.15);
}

.results-card__site {
    font-family: var(--font-display);
    font-size: var(--fs-xs);
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.results-card__title {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.results-card__body {
    padding: var(--space-lg) var(--space-md);
    text-align: center;
}

.results-card__score {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    color: #00e676;
    text-shadow: 0 0 30px rgba(0, 230, 118, 0.5);
    line-height: 1;
}

.results-card__label {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--space-xs);
    margin-bottom: var(--space-md);
}

.results-card__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

.results-card__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
}

.results-card__item-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.results-card__item-value {
    font-family: var(--font-display);
    font-size: var(--fs-md);
    color: var(--color-primary);
}

.results-card__footer {
    padding: var(--space-xs) var(--space-md);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    background: rgba(0, 0, 0, 0.3);
}

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

.btn--sm {
    padding: 6px 12px;
    font-size: var(--fs-xs);
}

/* ── Tool Grid Layout ── */
.tool-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--space-md);
}

/* ── Privacy Callout ── */
.privacy-callout {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    background: rgba(0, 229, 255, 0.04);
    border: 1px solid rgba(0, 229, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-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;
    flex-shrink: 0;
}

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

.browser-badge {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: var(--radius-sm);
    padding: 1px 6px;
}

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

.kbd-hint {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.kbd-hint kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 18px;
    padding: 0 4px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--color-primary);
    background: var(--color-bg);
    border: 1px solid rgba(0, 255, 65, 0.3);
    border-radius: 3px;
    box-shadow: 0 1px 0 rgba(0, 255, 65, 0.2);
}

/* ── File Drop Zone ── */
.file-drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) var(--space-md);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    background: rgba(0, 229, 255, 0.02);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    text-align: center;
}

.file-drop-zone:hover,
.file-drop-zone--active {
    border-color: var(--color-secondary);
    background: rgba(0, 229, 255, 0.06);
}

.file-drop-zone__text {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.file-drop-zone__link {
    color: var(--color-secondary);
    text-decoration: underline;
    cursor: pointer;
}

.file-drop-zone__hint {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
    opacity: 0.6;
}

/* ── File Results Panel ── */
.file-results-panel {
    margin-top: var(--space-sm);
}

.file-results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
}

/* ── Freeze Badge ── */
.freeze-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: #00e5ff;
    background: rgba(0, 229, 255, 0.12);
    border: 1px solid rgba(0, 229, 255, 0.4);
    border-radius: var(--radius-full);
    padding: 2px 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: freeze-pulse 1s ease infinite alternate;
    vertical-align: middle;
}

@keyframes freeze-pulse {
    from { opacity: 0.7; }
    to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .freeze-badge, .mic-active { animation: none; }
}

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

    .accuracy-display__pct {
        font-size: 3.5rem;
    }

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

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

@media (max-width: 480px) {
    .current-note-row {
        grid-template-columns: 1fr;
    }

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

    .pitch-trail-wrap {
        height: 200px;
    }

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