body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #000;
    color: #f5f5f7;
}

.video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #000;
    z-index: -1;
}

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

.controls {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    z-index: 10;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}

.seek-btn {
    appearance: none;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #ffffff;
    padding: 0.8rem 1.6rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

.seek-btn:hover {
    background: rgba(0, 0, 0, 0.6);
    transform: scale(1.05);
}

.seek-btn.active {
    background: #ffffff;
    color: #000000;
    border-color: #ffffff;
    text-shadow: none;
    box-shadow: 0 2px 4px rgba(255, 255, 255, 0.3);
}