/*
 * ArchiMesh model viewer loader
 * Shared by the app 3D model modal and the public free IFC viewer.
 * Keep changes synchronized with shared/browser/loaders/model_viewer_loader.js.
 */

.archimesh-model-viewer-loader.archimesh-model-viewer-loader {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--archimesh-theme-media-overlay-text);
    z-index: 20;
    background: var(--archimesh-theme-media-overlay-bg);
    padding: 32px;
    box-sizing: border-box;
    overflow: hidden;
}

.archimesh-model-viewer-loader.archimesh-model-viewer-loader::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 0;
    width: min(820px, calc(100% - 64px));
    height: min(420px, calc(100% - 64px));
    pointer-events: none;
    background:
        radial-gradient(
            ellipse at 50% 50%,
            var(--archimesh-theme-accent-soft) 0%,
            var(--archimesh-theme-on-accent-control-bg) 42%,
            var(--archimesh-theme-on-accent-transparent) 78%
        );
    filter: blur(8px);
    transform: translate(-50%, -50%);
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__card {
    position: relative;
    isolation: isolate;
    z-index: 1;
    width: min(560px, calc(100% - 64px), calc(100vw - 64px));
    min-height: min(320px, calc(100% - 48px));
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 34px;
    padding: 72px 76px 74px;
    border: 1px solid var(--archimesh-theme-on-accent-control-border);
    border-radius: 14px;
    background: var(--archimesh-theme-media-bg);
    box-shadow: 0 24px 70px var(--archimesh-theme-shadow-md);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__card::before {
    content: "";
    position: absolute;
    inset: -1px;
    z-index: -1;
    pointer-events: none;
    border-radius: inherit;
    background:
        radial-gradient(
            ellipse at 50% 50%,
            var(--archimesh-theme-accent-soft),
            var(--archimesh-theme-on-accent-transparent) 76%
        );
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo-mark {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    background: var(--archimesh-theme-action-gradient);
    box-shadow: 0 0 0 1px var(--archimesh-theme-on-accent-control-border), 0 0 22px var(--archimesh-theme-focus-ring);
    transform-origin: center;
    transition: transform 1.1s ease-in-out, filter 1.1s ease-in-out, box-shadow 1.1s ease-in-out;
    will-change: filter, transform;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo-mark--breathing {
    box-shadow: 0 0 0 1px var(--archimesh-theme-on-accent-control-border), 0 0 34px var(--archimesh-theme-focus-ring);
    filter: drop-shadow(0 0 18px var(--archimesh-theme-focus-ring));
    transform: scale(1.055);
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo-img {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo-text {
    color: var(--archimesh-theme-on-accent);
    font-size: 22px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__copy {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: center;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__status {
    color: var(--archimesh-theme-on-accent);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.25;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__detail {
    min-height: 20px;
    color: var(--archimesh-theme-on-accent-muted);
    font-size: 13px;
    line-height: 1.45;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress {
    width: min(100%, 390px, calc(100vw - 176px));
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-self: center;
    margin: 0;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress-track {
    height: 9px;
    border-radius: 5px;
    background: var(--archimesh-theme-on-accent-control-bg);
    overflow: hidden;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress-fill {
    height: 100%;
    width: 0;
    border-radius: 5px;
    background: var(--archimesh-theme-action-gradient);
    background-size: 220% 100%;
    transition: width 0.15s ease;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress-fill--indeterminate {
    width: 100%;
    background: var(--archimesh-theme-action-gradient);
    opacity: 0.76;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--archimesh-theme-on-accent-muted);
    font-size: 12px;
    font-weight: 700;
}

.archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress-percent {
    color: var(--archimesh-theme-on-accent-muted);
}

@media (max-width: 520px) {
    .archimesh-model-viewer-loader.archimesh-model-viewer-loader {
        padding: 24px 16px;
    }

    .archimesh-model-viewer-loader .archimesh-model-viewer-loader__card {
        width: min(360px, calc(100% - 32px), calc(100vw - 32px));
        min-height: min(300px, calc(100% - 32px));
        gap: 30px;
        padding: 54px 34px 58px;
    }

    .archimesh-model-viewer-loader .archimesh-model-viewer-loader__progress {
        width: min(100%, 268px);
    }

    .archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo-text {
        font-size: 20px;
    }

    .archimesh-model-viewer-loader .archimesh-model-viewer-loader__status {
        font-size: 17px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .archimesh-model-viewer-loader .archimesh-model-viewer-loader__logo-mark {
        transition: none;
        will-change: auto;
    }
}