.tool-area {
    padding: 0 0 60px
}

.metronome-panel {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
    padding: 40px 32px
}

.bpm-display {
    margin-bottom: 24px
}

.bpm-value {
    font-size: 5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    display: block
}

.bpm-label {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px
}

.beat-indicators {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px
}

.beat-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--border);
    transition: all 0.1s ease
}

.beat-dot.active {
    background: var(--primary);
    box-shadow: 0 0 12px rgba(108, 92, 231, 0.5)
}

.beat-dot.accent {
    background: var(--accent);
    box-shadow: 0 0 12px rgba(0, 206, 201, 0.5)
}

.tempo-slider-wrap {
    margin-bottom: 28px;
    padding: 0 8px
}

.tempo-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    outline: none
}

.tempo-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3)
}

.tempo-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none
}

.tempo-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px
}

.controls-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px
}

.control-group {
    text-align: left
}

.control-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px
}

.control-group select,
.control-group input[type="number"] {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-size: 0.92rem;
    transition: border-color var(--transition)
}

.control-group select:focus,
.control-group input:focus {
    border-color: var(--primary)
}

.small-slider {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    outline: none;
    margin-top: 8px
}

.small-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer
}

.small-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none
}

.tempo-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 28px
}

.preset-btn {
    padding: 8px 16px;
    border-radius: 20px;
    background: var(--bg);
    border: 1.5px solid var(--border);
    color: var(--text-light);
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--transition)
}

.preset-btn:hover,
.preset-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary)
}

.play-btn {
    width: 100%;
    padding: 16px;
    border-radius: var(--radius);
    background: var(--primary);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition)
}

.play-btn:hover {
    background: var(--primary-dark)
}

.play-btn.playing {
    background: #e74c3c
}

.play-btn.playing:hover {
    background: #c0392b
}

.play-icon {
    font-size: 1.2rem
}

.tutorial-link-box {
    max-width: 560px;
    margin: 20px auto 0;
    text-align: center;
    padding: 16px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border)
}

.tutorial-link-box a {
    font-weight: 600;
    font-size: 0.92rem
}

@media(max-width:768px) {
    .metronome-panel {
        padding: 28px 18px
    }

    .bpm-value {
        font-size: 3.5rem
    }

    .controls-row {
        grid-template-columns: 1fr
    }

    .beat-indicators {
        gap: 12px
    }
}

@media(max-width:480px) {
    .bpm-value {
        font-size: 3rem
    }

    .tempo-presets {
        gap: 6px
    }

    .preset-btn {
        padding: 6px 12px;
        font-size: 0.78rem
    }
}