body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background: #000;
    font-family: Arial, sans-serif;
}

#container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

#controls {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 100;
    color: white;
    background: rgba(0,0,0,0.7);
    padding: 15px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.control-group {
    margin-bottom: 10px;
}

label {
    display: inline-block;
    width: 80px;
    font-size: 14px;
}

input[type="range"] {
    width: 120px;
    margin-left: 10px;
}

button {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
}

button:hover {
    background: #45a049;
}

#info {
    position: absolute;
    bottom: 20px;
    right: 20px;
    color: white;
    background: rgba(0,0,0,0.7);
    padding: 10px;
    border-radius: 5px;
    font-size: 14px;
}

/* 정차역 안내 표시 영역 스타일 */
.station-announcement {
    background-color: rgba(255, 165, 0, 0.8);
    color: black;
    font-weight: bold;
    padding: 10px 15px;
    margin-top: 10px;
    border-radius: 5px;
    text-align: center;
    transition: all 0.5s ease;
    font-size: 16px;
    text-shadow: 0 0 2px white;
}

.station-announcement.show {
    opacity: 1;
    transform: translateY(0);
}

.station-announcement.hide {
    opacity: 0;
    transform: translateY(20px);
}

/* 다음 정차역 안내 표시 영역 스타일 */
.next-station-announcement {
    background-color: rgba(0, 100, 255, 0.8);
    color: white;
    font-weight: bold;
    padding: 10px 15px;
    margin-top: 10px;
    border-radius: 5px;
    text-align: center;
    transition: all 0.5s ease;
    font-size: 16px;
    text-shadow: 0 0 2px black;
}

/* 오디오 아이콘 스타일 */
.audio-icon {
    font-size: 18px;
    margin-left: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.next-station-announcement.show {
    opacity: 1;
    transform: translateY(0);
}

.next-station-announcement.hide {
    opacity: 0;
    transform: translateY(20px);
}

@media (max-width: 768px) {
    #controls {
        top: 10px;
        left: 10px;
        padding: 10px;
        font-size: 12px;
    }
    
    #info {
        bottom: 10px;
        right: 10px;
        font-size: 12px;
    }
    
    label {
        width: 60px;
        font-size: 12px;
    }
    
    input[type="range"] {
        width: 100px;
    }
    
    button {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .station-announcement {
        font-size: 14px;
        padding: 8px 12px;
    }
}