html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

#wrap {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.video_wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.video_wrapper.active {
    opacity: 1;
}

.video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 진행 표시기 */
.progress-indicator {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid #4a6fdc;
    transition: all 0.3s ease;
    cursor: pointer;
}

.progress-dot.active {
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.2);
    border: 1px solid #4a6fdc;
}

/* 컨트롤 버튼들 */
.controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.control-btn {
    background: rgba(0, 0, 0, 0.3);
    border: none;
    color: white;
    font-size: 20px;
    padding: 8px 12px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease;
}

.control-btn:hover {
    background: rgba(0, 0, 0, 0.6);
}

/* 비디오 제목 표시 */
.video-title {
    position: absolute;
    top: 20px;
    left: 20px;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 16px;
    z-index: 10;
}