/* Models gallery — scoped to .page-models only.
   Matches homepage/technologies (--th-*) tokens; does not alter header/footer. */

.page-models {
    --th-bg: #ffffff;
    --th-bg-soft: #f4f5f7;
    --th-ink: #101828;
    --th-ink-soft: #1f2937;
    --th-muted: #5c6570;
    --th-line: #e3e8ef;
    --th-navy: #0a1a3d;
    --th-accent: #1868c9;
    --th-radius: 4px;
    --th-radius-viewer: 10px;
    --th-rail-wide: 1400px;
    --th-ease: cubic-bezier(0.22, 1, 0.36, 1);
    --models-viewer-bg: #eef1f5;
    background: var(--th-bg);
    color: var(--th-ink);
}

.page-models .models-rail {
    margin-inline: auto;
}

.page-models .models-rail--hero {
    width: min(100% - 3rem, 720px);
    max-width: 720px;
}

.page-models .models-rail--stage {
    width: min(100% - 3rem, var(--th-rail-wide));
    max-width: var(--th-rail-wide);
}

/* —— Hero —— */
.page-models .models-hero {
    background: #fff;
    padding-block: 48px 0;
}

.page-models .models-hero__eyebrow {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--th-muted);
    margin: 0 0 12px;
}

.page-models .models-hero__title {
    margin: 0 0 14px;
    font-size: clamp(1.75rem, 2.5vw, 2.875rem); /* ~28–46 → target 40–48 desktop / 28–34 mobile */
    font-weight: 700;
    line-height: 1.2;
    color: var(--th-navy);
    text-wrap: pretty;
    max-width: 18ch;
}

.page-models .models-hero__lead {
    margin: 0;
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--th-ink-soft);
    max-width: 42rem;
}

/* —— Stage —— */
.page-models .models-stage {
    padding-block: 28px 72px;
}

.page-models .car3d-fusion {
    display: grid;
    grid-template-columns: minmax(0, 0.35fr) minmax(0, 0.65fr);
    grid-template-areas:
        "bar     bar"
        "head    viewer"
        "body    viewer"
        "source  hints";
    column-gap: 32px;
    row-gap: 16px;
    align-items: start;
    width: 100%;
}

.page-models .car3d-fusion__model-bar { grid-area: bar; }
.page-models .car3d-fusion__info-head { grid-area: head; }
.page-models .car3d-fusion__info-body { grid-area: body; }
.page-models .car3d-fusion__canvas-wrap { grid-area: viewer; }
.page-models .car3d-fusion__hints { grid-area: hints; }
.page-models .car3d-fusion__source { grid-area: source; }

/* Type picker */
.page-models .car3d-fusion__model-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 0 8px;
}

.page-models .car3d-fusion__model-btn {
    appearance: none;
    border: 1px solid var(--th-line);
    background: #fff;
    color: var(--th-ink);
    font: inherit;
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.2;
    min-height: 44px;
    padding: 0.55rem 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 160ms var(--th-ease), border-color 160ms var(--th-ease), color 160ms var(--th-ease);
}

.page-models .car3d-fusion__model-btn:hover {
    border-color: #c5ccd6;
    background: var(--th-bg-soft);
}

.page-models .car3d-fusion__model-btn:focus-visible {
    outline: 2px solid var(--th-accent);
    outline-offset: 2px;
}

.page-models .car3d-fusion__model-btn.is-active {
    background: var(--th-navy);
    border-color: var(--th-navy);
    color: #fff;
}

.page-models .car3d-fusion__soon {
    display: inline-block;
    margin-inline-start: 0.4rem;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--th-accent);
    background: transparent;
    border: 1px solid rgba(24, 104, 201, 0.28);
    border-radius: 999px;
    padding: 0.12rem 0.45rem;
    vertical-align: middle;
}

.page-models .car3d-fusion__model-btn.is-active .car3d-fusion__soon {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
    background: transparent;
}

/* Info column — no rounded frame around whole explanation */
.page-models .car3d-fusion__info-head,
.page-models .car3d-fusion__info-body {
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 0;
    margin: 0;
    box-shadow: none;
}

.page-models .car3d-fusion__type-title {
    margin: 0 0 8px;
    font-size: clamp(1.625rem, 1.8vw, 1.875rem); /* ~26–30 */
    font-weight: 700;
    line-height: 1.25;
    color: var(--th-navy);
}

.page-models .car3d-fusion__status {
    margin: 0 0 4px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--th-ink-soft);
}

.page-models .car3d-fusion__info-group {
    margin: 0;
    padding: 18px 0 0;
    border-top: 1px solid var(--th-line);
}

.page-models .car3d-fusion__info-group:first-child {
    padding-top: 16px;
}

.page-models .car3d-fusion__info-label {
    display: block;
    margin: 0 0 6px;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--th-ink);
    letter-spacing: 0.01em;
}

.page-models .car3d-fusion__info-group p,
.page-models .car3d-fusion__info-text {
    margin: 0 0 8px;
    font-size: 1.0625rem; /* ~17 */
    line-height: 1.65;
    color: var(--th-ink-soft);
}

.page-models .car3d-fusion__info-group p:last-child,
.page-models .car3d-fusion__info-text:last-child {
    margin-bottom: 0;
}

.page-models .car3d-fusion__data-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.page-models .car3d-fusion__data-list li {
    margin: 0 0 6px;
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--th-ink-soft);
}

.page-models .car3d-fusion__data-list li:last-child {
    margin-bottom: 0;
}

.page-models .car3d-fusion__data-list strong {
    font-weight: 700;
    color: var(--th-ink);
}

/* 3D viewer */
.page-models .car3d-fusion__canvas-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    height: auto;
    min-height: 320px;
    border-radius: var(--th-radius-viewer);
    overflow: hidden;
    background: var(--models-viewer-bg);
    border: 1px solid var(--th-line);
    box-shadow: none;
}

.page-models .car3d-fusion__canvas-wrap canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.page-models .car3d-fusion__loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--th-ink);
    font-size: 0.9375rem;
    z-index: 2;
    background: var(--models-viewer-bg);
}

.page-models .car3d-fusion__loading[hidden] {
    display: none !important;
}

.page-models .car3d-fusion__spinner {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(10, 26, 61, 0.12);
    border-top-color: var(--th-accent);
    animation: models-spin 0.8s linear infinite;
}

@keyframes models-spin {
    to { transform: rotate(360deg); }
}

.page-models .car3d-fusion__soon-panel,
.page-models .car3d-fusion__error-panel {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1.5rem;
    background: var(--models-viewer-bg);
}

.page-models .car3d-fusion__soon-panel[hidden],
.page-models .car3d-fusion__error-panel[hidden] {
    display: none !important;
}

.page-models .car3d-fusion__soon-title,
.page-models .car3d-fusion__error-text {
    margin: 0;
    max-width: 22rem;
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--th-ink);
}

.page-models .car3d-fusion__retry {
    appearance: none;
    margin-top: 1rem;
    min-height: 44px;
    padding: 0.55rem 1.25rem;
    font: inherit;
    font-weight: 600;
    font-size: 0.9375rem;
    color: #fff;
    background: var(--th-navy);
    border: 1px solid var(--th-navy);
    border-radius: 8px;
    cursor: pointer;
}

.page-models .car3d-fusion__retry:hover {
    background: #122449;
}

.page-models .car3d-fusion__retry:focus-visible {
    outline: 2px solid var(--th-accent);
    outline-offset: 2px;
}

.page-models .car3d-fusion__canvas-wrap.is-soon canvas,
.page-models .car3d-fusion__canvas-wrap.is-error canvas {
    visibility: hidden;
}

.page-models .car3d-fusion__hints,
.page-models .car3d-fusion__source {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--th-muted);
}

.page-models .car3d-fusion__hints {
    padding-top: 2px;
}

.page-models .car3d-fusion__source {
    padding-top: 4px;
}

.page-models .car3d-fusion__hints[hidden] {
    visibility: hidden;
}

/* Reset button — keep subtle */
.page-models .car3d-fusion__reset {
    position: absolute;
    z-index: 4;
    left: 1rem;
    right: auto;
    bottom: 1rem;
    transform: translateY(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
    appearance: none;
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: rgba(255, 255, 255, 0.94);
    color: var(--th-ink);
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border-radius: 999px;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.1);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.page-models .car3d-fusion__reset:not([hidden]) {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.page-models .car3d-fusion__reset:hover {
    background: #fff;
    border-color: rgba(24, 104, 201, 0.35);
    color: var(--th-accent);
}

.page-models .car3d-fusion__canvas-wrap.is-soon .car3d-fusion__reset,
.page-models .car3d-fusion__canvas-wrap.is-error .car3d-fusion__reset {
    display: none !important;
}

/* Stack below ~1000px */
@media (max-width: 1000px) {
    .page-models .car3d-fusion {
        grid-template-columns: 1fr;
        grid-template-areas:
            "bar"
            "head"
            "viewer"
            "hints"
            "body"
            "source";
        column-gap: 0;
        row-gap: 14px;
    }

    .page-models .car3d-fusion__canvas-wrap {
        aspect-ratio: 1 / 1;
        min-height: 280px;
    }

    .page-models .car3d-fusion__info-group:first-child {
        padding-top: 12px;
    }
}

@media (max-width: 720px) {
    .page-models .models-rail--hero,
    .page-models .models-rail--stage {
        width: calc(100% - 2.75rem); /* ~22px each side → 20–24 */
    }

    .page-models .models-hero {
        padding-block: 36px 0;
    }

    .page-models .models-hero__title {
        font-size: clamp(1.75rem, 7vw, 2.125rem); /* ~28–34 */
        max-width: none;
    }

    .page-models .models-hero__lead {
        font-size: 1rem;
    }

    .page-models .models-stage {
        padding-block: 22px 56px;
    }

    .page-models .car3d-fusion__model-bar {
        gap: 8px;
    }

    .page-models .car3d-fusion__model-btn {
        flex: 0 1 calc(33.333% - 7px);
        width: calc(33.333% - 7px);
        max-width: calc(33.333% - 7px);
        box-sizing: border-box;
        text-align: center;
        font-size: 0.9375rem;
        padding: 0.6rem 0.5rem;
    }

    .page-models .car3d-fusion__type-title {
        font-size: 1.5rem;
    }

    .page-models .car3d-fusion__info-group p,
    .page-models .car3d-fusion__info-text,
    .page-models .car3d-fusion__data-list li {
        font-size: 1rem;
    }
}

@media (max-width: 340px) {
    .page-models .car3d-fusion__model-btn {
        flex: 1 1 calc(50% - 8px);
        min-width: calc(50% - 8px);
        max-width: none;
    }
}