/* Metronome Calculator - Calculator-Specific Styles */
/* Global classes (.glass-card, .btn-custom, .form-input, etc.) are defined in layout.css - DO NOT redefine! */

/* ========================================
   Metronome Display Area
   ======================================== */

.metronome-display {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px 20px;
    text-align: center;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* BPM Display */
.bpm-display {
    font-size: 5rem;
    font-weight: 700;
    color: white;
    font-family: 'Roboto Mono', monospace;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin-bottom: 10px;
}

.bpm-label {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ========================================
   Pendulum Animation
   ======================================== */

.pendulum-container {
    position: relative;
    width: 200px;
    height: 250px;
    margin: 30px auto;
}

.pendulum-rod {
    position: absolute;
    top: 20px;
    left: 50%;
    width: 4px;
    height: 180px;
    background: linear-gradient(to bottom, #ffffff 0%, #e0e0e0 100%);
    transform-origin: top center;
    transform: translateX(-50%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.05s linear;
}

.pendulum-weight {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle at 30% 30%, #ffd700, #ffa500);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.pendulum-pivot {
    position: absolute;
    top: 20px;
    left: 50%;
    width: 16px;
    height: 16px;
    background: #333;
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 10;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

/* Pendulum swing animation (controlled by JS) */
.pendulum-rod.swing-left {
    transform: translateX(-50%) rotate(-30deg);
}

.pendulum-rod.swing-right {
    transform: translateX(-50%) rotate(30deg);
}

/* ========================================
   Beat Indicators
   ======================================== */

.beat-indicators {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
}

.beat-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: all 0.1s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.beat-indicator.active {
    background: #E74C3C;
    transform: scale(1.3);
    box-shadow: 0 0 20px rgba(231, 76, 60, 0.8);
}

.beat-indicator.strong {
    background: #E74C3C;
}

.beat-indicator.weak {
    background: rgba(255, 255, 255, 0.5);
}

/* Current beat number display */
.beat-number {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    font-family: 'Roboto Mono', monospace;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    margin-top: 10px;
}

/* ========================================
   BPM Controls
   ======================================== */

.bpm-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.bpm-slider-container {
    flex: 1;
    position: relative;
}

.bpm-slider {
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right, #48bb78, #667eea);
    border-radius: 5px;
    outline: none;
}

.bpm-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: white;
    border: 3px solid #667eea;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.2s;
}

.bpm-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 12px rgba(102, 126, 234, 0.5);
}

.bpm-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: white;
    border: 3px solid #667eea;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.2s;
}

.bpm-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 12px rgba(102, 126, 234, 0.5);
}

.bpm-input {
    width: 100px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.btn-bpm-adjust {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 2px solid #667eea;
    background: white;
    color: #667eea;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-bpm-adjust:hover {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    transform: scale(1.1);
}

/* ========================================
   Control Buttons
   ======================================== */

.metronome-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
}

.btn-metronome-control {
    min-width: 120px;
    padding: 12px 24px;
    font-size: 1.1rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    font-weight: 600;
}

.btn-start {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
    box-shadow: 0 4px 15px rgba(72, 187, 120, 0.3);
}

.btn-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(72, 187, 120, 0.4);
}

.btn-pause {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-pause:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-stop {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.btn-stop:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

/* ========================================
   Preset Templates
   ======================================== */

.preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.btn-preset {
    padding: 15px 20px;
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.btn-preset:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.preset-name {
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.preset-info {
    font-size: 0.9rem;
    color: #666;
}

/* ========================================
   Tap Tempo Button
   ======================================== */

.btn-tap-tempo {
    padding: 20px 30px;
    background: linear-gradient(135deg, #4A90E2, #357ABD);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
    width: 100%;
}

.btn-tap-tempo:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-tap-tempo:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(74, 144, 226, 0.3);
}

.tap-tempo-hint {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    margin-top: 8px;
}

/* ========================================
   Advanced Settings
   ======================================== */

.volume-control {
    display: flex;
    align-items: center;
    gap: 15px;
}

.volume-slider {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #e0e0e0;
    border-radius: 3px;
    outline: none;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: #667eea;
    border-radius: 50%;
    cursor: pointer;
}

.volume-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: #667eea;
    border-radius: 50%;
    cursor: pointer;
}

.volume-value {
    font-weight: 600;
    color: #667eea;
    min-width: 45px;
    text-align: right;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .bpm-display {
        font-size: 3.5rem;
    }

    .bpm-label {
        font-size: 1.2rem;
    }

    .pendulum-container {
        width: 150px;
        height: 200px;
    }

    .pendulum-rod {
        height: 140px;
    }

    .pendulum-weight {
        width: 45px;
        height: 45px;
    }

    .beat-number {
        font-size: 2.5rem;
    }

    .metronome-controls {
        flex-direction: column;
    }

    .btn-metronome-control {
        width: 100%;
    }

    .bpm-controls {
        flex-direction: column;
    }

    .bpm-input {
        width: 100%;
    }

    .preset-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .metronome-display {
        min-height: 300px;
        padding: 30px 15px;
    }

    .bpm-display {
        font-size: 2.5rem;
    }

    .beat-indicator {
        width: 15px;
        height: 15px;
    }
}