/* --- Component structural styles --- */
mc-world, mc-timeline, mc-camera, mc-frame {
    display: none;
}

mc-diorama {
    display: block;
    position: relative;
    width: 100%;
    height: 20em;
}

mc-diorama canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* --- UI Controls styles --- */
.spacetime-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
    padding: 12px;
    z-index: 10;
}

.reset-wrapper {
    display: flex;
    justify-content: flex-end;
    width: 100%;
}

.reset-btn {
    pointer-events: auto;
    padding: 6px 12px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    display: none;
    font-family: sans-serif;
    border-radius: 4px;
    font-weight: bold;
    backdrop-filter: blur(4px);
}

.reset-btn:hover {
    background: rgba(0, 0, 0, 0.8);
}

.visualizer-ui {
    pointer-events: auto;
    font-family: sans-serif;
    background: rgba(20, 20, 20, 0.85);
    padding: 12px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    color: white;
    user-select: none;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.scrubber-row {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    min-width: 4ch;
    text-align: center;
    font-weight: bold;
    transition: background 0.1s;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.track-container {
    flex-grow: 1;
    height: 24px;
    padding: 0 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.track-inner {
    position: relative;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.track-bg {
    position: absolute;
    left: -10px;
    right: -10px;
    top: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.track-fill {
    position: absolute;
    left: -10px;
    top: 8px;
    height: 8px;
    background: #f00;
    width: 10px;
    border-radius: 4px;
}

.track-handle {
    position: absolute;
    width: 16px;
    height: 16px;
    background: #fff;
    border-radius: 50%;
    top: 12px;
    transform: translate(-50%, -50%);
    z-index: 3;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
}

.marker {
    position: absolute;
    top: 8px;
    height: 8px;
    transform: translateX(-50%);
    pointer-events: none;
    z-index: 1;
}

.marker-event {
    width: 2px;
    background: rgba(255, 255, 255, 0.5);
}

.marker-label {
    width: 4px;
    background: gold;
    z-index: 2;
}

/* --- Hover Visibility Logic --- */
.spacetime-hover-reveal {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.spacetime-container:hover .spacetime-hover-reveal {
    opacity: 1;
    pointer-events: auto;
}

.spacetime-indicator {
    position: absolute;
    left: 33px;
    bottom: 29px;
    display: flex;
    gap: 12px;
    color: rgba(255, 255, 255, 0.4);
    font-family: monospace;
    font-size: 14px;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.2s ease;
}

.spacetime-container:hover .spacetime-indicator {
    opacity: 0;
}