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

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

    & canvas {
        display: block;
        width: 100%;
        height: 100%;
    }
}

.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;
    font-family: sans-serif;

    & .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;
        text-align: center;
        font-weight: bold;
        font-family: inherit;
        backdrop-filter: blur(4px);
        transition: background 0.1s, border-color 0.1s;
        pointer-events: auto; /* Always clickable when visible */

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

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

        & .btn {
            visibility: hidden;
        }
    }

    /* Bottom: Timeline Panel Context */

    & .visualizer-ui {
        pointer-events: none;
        background: transparent;
        padding: 12px;
        border-radius: 8px;
        display: flex;
        flex-direction: column;
        gap: 12px;
        color: white;
        user-select: none;
        border: 1px solid transparent;
        transition: all 0.2s ease;

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

            & .btn {
                min-width: 4ch;
            }
        }

        & .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;
                    }
                }
            }
        }
    }

    /* Spatial Tool Hints */

    & .spacetime-indicator {
        position: absolute;
        left: 33px;
        top: 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;
    }
}

/* --- 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 {
        opacity: 0;
    }

    & .visualizer-ui {
        background: rgba(20, 20, 20, 0.85);
        backdrop-filter: blur(4px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        pointer-events: auto;
    }
}