/* Shared model viewer (see assets/model-viewer.js) */
.mv { width: 100%; max-width: 1200px; min-width: 0; box-sizing: border-box; margin: 0 auto; padding: 0 0 2rem; color: #0f172a; overflow-x: clip; }
.mv *, .mv *::before, .mv *::after { box-sizing: border-box; }
.mv > * { min-width: 0; max-width: 100%; }
.mv-selectors { display: flex; flex-direction: column; gap: 0.7rem; margin: 0 0 1rem; }
.mv-group { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; max-width: 100%; }
.mv-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: #64748b; }
.mv-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; min-width: 0; }
.mv-chip {
    flex: 0 1 auto; min-height: 40px; padding: 0 0.9rem; border-radius: 999px;
    border: 1px solid #cbd5e1; background: #fff; color: #1e3c72;
    font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer; }
.mv-chip:hover { background: #eef4fb; }
.mv-chip[aria-checked="true"] { background: #1e3c72; border-color: #1e3c72; color: #fff; }
.mv-select {
    width: 100%; max-width: 420px; min-height: 44px; padding: 0 0.8rem; border-radius: 10px;
    border: 1px solid #cbd5e1; background: #fff; color: #1e3c72; font: inherit; font-weight: 600;
}
.mv-title { font-size: 1.15rem; color: #1e3c72; margin: 0.2rem 0 0.5rem; text-align: left; }

.mv-stage {
    position: relative; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px;
    min-height: 220px; display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.mv-img { display: block; width: 100%; max-width: 100%; height: auto; margin: 0 !important; transform-origin: 0 0; transition: opacity 0.12s; user-select: none; -webkit-user-drag: none; }
.mv-stage.is-zoomed .mv-img { cursor: grab; max-width: none; }
.mv-stage.is-zoomed:active .mv-img { cursor: grabbing; }
.mv-img:not([src]) { display: none; }
.mv-stage { touch-action: pan-y; }
.mv-stage:fullscreen { background: #fff; align-items: flex-start; }
.mv-zoom { position: absolute; top: 8px; right: 8px; z-index: 5; display: flex; gap: 4px; }
.mv-zbtn {
    min-width: 36px; height: 36px; padding: 0 0.5rem; border-radius: 8px; border: 1px solid #cbd5e1;
    background: rgba(255, 255, 255, 0.92); color: #1e3c72; font: inherit; font-size: 1.05rem; font-weight: 700; cursor: pointer;
}
.mv-zbtn:hover { background: #eef4fb; }
.mv-zbtn:focus-visible { outline: 3px solid #f59e0b; outline-offset: 2px; }
.mv-zreset { font-size: 0.8rem; }
.mv-hint { margin: 0.3rem 0 0.8rem; font-size: 0.78rem; color: #64748b; text-align: left; }
.mv-img.is-loading { opacity: 0.55; }
.mv-loading, .mv-fail {
    position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 1rem; color: #475569; font-size: 0.95rem; pointer-events: none;
}
.mv-loading[hidden], .mv-fail[hidden] { display: none; }
.mv-fail { pointer-events: auto; background: #f8fafc; }
.mv-fail p { margin: 0.25rem 0; }

.mv-bar {
    /* slider and time stay in view while the plot is scrolled */
    position: sticky; top: 0; z-index: 20; background: #fff; margin: 0 0 0.6rem; padding: 0.5rem 0 0.1rem;
    border-bottom: 1px solid #e2e8f0;
}
@media (min-width: 769px) { .mv-bar { top: 52px; } }   /* below the sticky nav bar */
.mv-controls { display: flex; align-items: center; gap: 0.5rem; margin: 0; }
.mv-controls[hidden] { display: none; }
.mv-btn {
    flex: 0 0 auto; width: 46px; height: 46px; border-radius: 50%; border: 1px solid #cbd5e1;
    background: #fff; color: #1e3c72; font-size: 1rem; cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
}
.mv-btn:hover { background: #eef4fb; }
.mv-btn:active { transform: scale(0.96); }
.mv-play { width: 54px; height: 54px; background: #1e3c72; border-color: #1e3c72; color: #fff; font-size: 1.15rem; }
.mv-play:hover { background: #2a5298; }
.mv-speed { font-size: 0.85rem; font-weight: 700; }
.mv-btn:focus-visible, .mv-chip:focus-visible, .mv-slider:focus-visible, .mv-select:focus-visible { outline: 3px solid #f59e0b; outline-offset: 2px; }

.mv-sliderwrap { position: relative; flex: 1 1 auto; min-width: 0; padding-bottom: 1.3rem; }
.mv-slider { width: 100%; height: 32px; margin: 0; accent-color: #1e3c72; cursor: pointer; touch-action: pan-y; }
.mv-days { position: absolute; left: 0; right: 0; bottom: 0; height: 1.1rem; font-size: 0.7rem; color: #64748b; pointer-events: none; }
.mv-days span { position: absolute; transform: translateX(-2px); white-space: nowrap; padding-left: 3px; border-left: 1px solid #94a3b8; }

.mv-time { margin: 0.2rem 0 0.4rem; text-align: left; }
.mv-valid { display: flex; flex-wrap: wrap; gap: 0.2rem 0.8rem; align-items: baseline; font-size: 1.05rem; color: #0f172a; }
.mv-z { font-size: 0.85rem; color: #64748b; font-variant-numeric: tabular-nums; }
.mv-run { font-size: 0.8rem; color: #64748b; margin-top: 0.15rem; }

.mv details { border: 1px solid #e2e8f0; border-radius: 10px; background: #fff; margin: 0 0 0.6rem; padding: 0 1rem; text-align: left; }
.mv summary { cursor: pointer; padding: 0.75rem 0; font-weight: 700; color: #1e3c72; min-height: 24px; }
.mv details > div { padding: 0 0 0.9rem; font-size: 0.92rem; line-height: 1.5; color: #334155; }
.mv details h3 { font-size: 0.95rem; margin: 0.6rem 0 0.2rem; color: #1e3c72; }
.mv details p, .mv details ul { margin: 0.2rem 0 0.5rem; }
.mv details ul { padding-left: 1.2rem; }
.mv-source { font-size: 0.82rem; color: #64748b; }

@media (min-width: 720px) {
    .mv-selectors { flex-direction: row; flex-wrap: wrap; gap: 0.7rem 2rem; }
    .mv-group { min-width: 0; }
}
@media (max-width: 480px) {
    .mv-speed { display: none; }
    .mv-btn { width: 42px; height: 42px; }
    .mv-play { width: 50px; height: 50px; }
}

/* the page's hero card sets the width; never let the viewer push past it */
.hero:has(.mv) { min-width: 0; max-width: 100%; overflow-x: clip; }
.hero:has(.mv) h1 { line-height: 1.2; }

.mv-extra { margin: 0 0 0.9rem; text-align: left; }
.mv-extra[hidden] { display: none; }
.mv-extra img { display: block; width: 100%; max-width: 360px; height: auto; border: 1px solid #e2e8f0; border-radius: 10px; margin: 0 0 0.25rem; }
.mv-extra figcaption { font-size: 0.8rem; color: #64748b; }