* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #ffffff;
    color: #000000;
    font-family: Arial, sans-serif;
    padding: 20px;
    padding-top: 40px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

/* Clock Section */
.clock-section {
    margin-bottom: 30px;
}

.clock-border {
    border: 2px solid #000000;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
}

.clock-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.clock-label {
    font-size: 20px;
    font-weight: bold;
}

.clock-light {
    width: 20px;
    height: 20px;
    background-color: #ffffff;
    border: 2px solid #000000;
    transition: background-color 0.1s ease;
}

.clock-light.active {
    background-color: #ff0000;
}

.play-pause-btn {
    padding: 8px 16px;
    border: 2px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.1s ease;
}

.play-pause-btn:hover {
    background-color: #f0f0f0;
}

.play-pause-btn:active {
    background-color: #e0e0e0;
}

/* Tracks Section */
.tracks-section {
    border: 2px solid #000000;
    padding: 20px;
    background-color: #ffffff;
}

.track {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 10px 0;
    border-bottom: 1px solid #000000;
}

.track:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.track-label {
    width: 120px;
    font-size: 16px;
    font-weight: bold;
}

.track-controls {
    display: flex;
    gap: 10px;
    flex: 1;
}

.operator-select,
.value-select {
    padding: 5px 10px;
    border: 2px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    width: 50px;
    /* Chrome-specific fixes */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 12px;
    padding-right: 25px;
}

.operator-select:focus,
.value-select:focus {
    outline: none;
}

.track-light {
    width: 20px;
    height: 20px;
    background-color: #ffffff;
    border: 2px solid #000000;
    margin-left: 10px;
    transition: background-color 0.1s ease;
}

.track-light.active {
    background-color: #ff0000;
}

/* Help Button */
.help-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: 2px solid #000000;
    background-color: #ffffff;
    color: #000000;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.1s ease;
}

.help-btn:hover {
    background-color: #f0f0f0;
}

.help-btn:active {
    background-color: #e0e0e0;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: #ffffff;
    margin: 15% auto;
    padding: 20px;
    border: 2px solid #000000;
    width: 90%;
    max-width: 800px;
    position: relative;
}

.close {
    color: #000000;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 10px;
    right: 15px;
}

.close:hover {
    color: #666666;
}