/*
    Loading screen — full-viewport overlay with a retro terminal-style
    animation that plays while media assets are still loading.
    Fades out once every layer reports ready.
*/

.loading-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;

    display: flex;
    align-items: center;
    justify-content: center;

    background-color: var(--background-color);

    transition:
        opacity 400ms ease,
        visibility 400ms ease;

    pointer-events: all;
}

/* Hidden state — faded out and clicks pass through to the UI below. */
.loading-screen.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* ---- Loading bar (retro pixel style) ---- */

.loading-bar-track {
    position: relative;

    width: min(280px, 60vw);
    height: 8px;

    border: 2px solid var(--ui-color);
    border-radius: 0;

    transition: border-color var(--theme-transition-duration) ease;
    overflow: hidden;
}

.loading-bar-fill {
    position: absolute;
    inset: 0;

    width: 0%;
    height: 100%;

    background-color: var(--ui-color);

    transition: background-color var(--theme-transition-duration) ease;

    /* The width is driven by JavaScript via style.setProperty */
    /* Animate width changes smoothly */
    transition: width 220ms ease-out;
}

/* ---- Terminal label ---- */

.loading-label {
    margin-top: 10px;

    color: var(--ui-color);
    font-family: monospace;
    font-size: 12px;
    text-align: center;

    transition: color var(--theme-transition-duration) ease;
}

/* Flicker on the label text for a CRT feel */
.loading-label::after {
    content: '_';
    display: inline;
    animation: loading-blink 900ms step-end infinite;
}

@keyframes loading-blink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .loading-screen {
        transition: none;
    }

    .loading-bar-fill {
        transition: none;
    }

    .loading-label::after {
        animation: none;
        opacity: 1;
    }
}