/* --- 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;
    inset: 0; /* Replaces top, left, width, height */
    padding: 5px;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
    z-index: 10;
    font-family: sans-serif;

    /* Core icon engine rules */

    & .icon {
        display: inline-block;
        width: 1.2em;
        height: 1.2em;
        background-color: currentColor; /* Inherits text color (white, or hover states) */
        mask-repeat: no-repeat;
        mask-position: center;
        mask-size: contain;
        -webkit-mask-repeat: no-repeat;
        -webkit-mask-position: center;
        -webkit-mask-size: contain;

        /* Map classes to your local SVG paths */

        &.ico-play {
            mask-image: url('ico-play.svg');
            -webkit-mask-image: url('ico-play.svg');
        }

        &.ico-pause {
            mask-image: url('ico-pause.svg');
            -webkit-mask-image: url('ico-pause.svg');
        }

        &.ico-auto-events {
            mask-image: url('ico-auto-events.svg');
            -webkit-mask-image: url('ico-auto-events.svg');
        }

        &.ico-prev {
            mask-image: url('ico-prev.svg');
            -webkit-mask-image: url('ico-prev.svg');
        }

        &.ico-next {
            mask-image: url('ico-next.svg');
            -webkit-mask-image: url('ico-next.svg');
        }

        &.ico-prev-event {
            mask-image: url('ico-prev-event.svg');
            -webkit-mask-image: url('ico-prev-event.svg');
        }

        &.ico-next-event {
            mask-image: url('ico-next-event.svg');
            -webkit-mask-image: url('ico-next-event.svg');
        }

        &.ico-reset {
            mask-image: url('ico-reset.svg');
            -webkit-mask-image: url('ico-reset.svg');
        }

        /* Spatial indicators (mapped for future integration if desired) */

        &.ico-rotate {
            mask-image: url('ico-rotate.svg');
            -webkit-mask-image: url('ico-rotate.svg');
        }

        &.ico-pan {
            mask-image: url('ico-pan.svg');
            -webkit-mask-image: url('ico-pan.svg');
        }

        &.ico-zoom {
            mask-image: url('ico-zoom.svg');
            -webkit-mask-image: url('ico-zoom.svg');
        }
    }

    /* Define the safe zones for the top cluster */

    & .top-row {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        pointer-events: none;
    }

    /* Spatial Tool Hints */

    & .spacetime-indicator {
        display: flex;
        gap: 4px;
        /* Mimic the .btn box model so baselines perfectly align with the Play button */
        padding: 4px 8px;
        border: 1px solid transparent;
        color: rgba(255, 255, 255, 0.4);
        font-family: monospace;
        font-size: 14px;
        opacity: 1;
        transition: opacity 0.2s ease;
        pointer-events: auto;
    }

    /* Unified Button Design Language */

    & .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 6px; /* Spacing between icon and text for the reset button */

    }

    & .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);
        pointer-events: auto;

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

    & .top-row .btn {
        background: rgba(0, 0, 0, 0.6);
        visibility: hidden;

        &:hover {
            background: rgba(0, 0, 0, 0.8);
        }
    }

    /* Bottom: Timeline Panel Context */

    & .visualizer-ui {
        pointer-events: none;
        background: transparent;
        margin: -5px;
        padding: 5px;
        display: flex;
        flex-direction: column;
        gap: 4px;
        color: white;
        user-select: none;
        border: 1px solid transparent;
        transition: all 0.2s ease;

        & .scrubber-row {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        & .track-container {
            flex-grow: 1;
            height: 24px;
            padding: 0 8px; /* Safe zone so the rounded handle doesn't bleed out */
            cursor: pointer;
            display: flex;
            align-items: center;

            & .track-inner {
                position: relative;
                width: 100%;
                height: 8px; /* Defines the actual track geometry */
                background: rgba(255, 255, 255, 0.2);
                pointer-events: none;

                & .track-fill {
                    position: absolute;
                    left: 0;
                    top: 0;
                    bottom: 0; /* Snaps tightly to inner geometry */
                    background: #f00;
                }

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

                & .marker {
                    position: absolute;
                    top: 0;
                    bottom: 0; /* Matches track height */
                    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;
    }
    & .visualizer-ui {
        pointer-events: auto;
    }
}