/* Hallmark · pre-emit critique: P5 H4 E4 S5 R5 V5
 * Course visual references. Uses the shared petroleum-blue/sage light palette.
 * Source images retain their original colours in both themes. */
.academy-visual{margin:var(--space-xl) 0;padding:var(--space-xl) 0;border-block:1px solid var(--color-rule);min-width:0;overflow-wrap:anywhere}
.academy-visual-label{display:block;font-size:.75rem;line-height:1.6;font-weight:600;color:var(--color-accent);letter-spacing:.02em}
.academy-visual>header h3{margin:var(--space-sm) 0 var(--space-lg);font:600 clamp(1.3rem,2.8vw,1.8rem)/1.25 var(--font-display);text-wrap:balance}
.academy-diagram{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-md);padding:0!important;margin:0!important;list-style:none;position:relative}
.academy-diagram>li{display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-lg);border:1px solid var(--color-rule);border-radius:var(--radius-sm);background:var(--course-key-surface,var(--color-soft));min-width:0;position:relative}
.academy-diagram>li+li{margin-top:0}
.academy-diagram>li:nth-child(2){background:var(--course-example-surface,var(--color-soft))}
.academy-diagram>li>span{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--color-accent);border-radius:50%;color:var(--color-accent);font:600 .85rem var(--font-display)}
.academy-diagram strong{display:block;font-size:.95rem;line-height:1.5}.academy-diagram li p{font-size:.875rem;line-height:1.7;margin:var(--space-sm) 0 0}
.academy-diagram[data-layout=hierarchy]{grid-template-columns:minmax(0,1fr)}
.academy-diagram[data-layout=hierarchy]>li{flex-direction:row;align-items:flex-start;margin-left:calc(var(--level,0) * 22px)}
.academy-diagram[data-layout=hierarchy]>li:nth-child(2){--level:1}.academy-diagram[data-layout=hierarchy]>li:nth-child(3){--level:2}
.academy-diagram[data-layout=hierarchy]>li>span{flex-shrink:0}
.academy-diagram[data-layout=timeline]{gap:0}
.academy-diagram[data-layout=timeline]>li{border:0;border-top:3px solid var(--color-accent);border-radius:0;background:transparent;padding-inline-start:0;padding-inline-end:var(--space-lg)}
.academy-diagram-credit{font-size:.75rem!important;line-height:1.7;color:var(--color-muted);margin:var(--space-sm) 0 0!important}
.academy-reference{margin:var(--space-xl) 0 0;border:1px solid var(--color-rule);border-radius:var(--radius-md);overflow:hidden;background:var(--color-surface);min-width:0}
.academy-reference>header{padding:var(--space-lg)}.academy-reference h4{font:600 1.15rem/1.4 var(--font-display);margin:var(--space-sm) 0 0}
.academy-image-button{display:block;width:100%;padding:0;border:0;border-block:1px solid var(--color-rule);background:#fff;cursor:zoom-in;font:inherit;text-align:left}
.academy-image-button img{display:block;width:100%;max-width:100%;height:auto;object-fit:contain;filter:none}
.academy-image-button>span{display:block;padding:12px 18px;min-height:44px;box-sizing:border-box;background:var(--color-ink);color:var(--color-paper);font-size:.875rem;font-weight:600;text-decoration:underline;text-underline-offset:4px}
.academy-reference figcaption{padding:var(--space-md) var(--space-lg);font-size:.8rem;line-height:1.8;color:var(--color-muted)}
.academy-reference figcaption a{color:inherit}.academy-look{border-top:1px solid var(--color-rule);padding:var(--space-lg);font-size:.875rem;line-height:1.75}
.academy-look>strong{display:block;margin-bottom:var(--space-sm)}.academy-look ol{margin:0;padding-left:var(--space-lg)}.academy-look li+li{margin-top:var(--space-sm)}
.academy-observe{margin-top:var(--space-lg);padding:var(--space-lg);background:var(--course-example-surface,var(--color-soft));border-radius:var(--radius-sm);line-height:1.75}
.academy-observe>p{margin:var(--space-sm) 0}.academy-observe summary,.academy-visual-sources summary{min-height:44px;padding:var(--space-sm) 0;cursor:pointer;font-weight:600;line-height:1.75}
.academy-observe details p{font-size:.9rem;margin:var(--space-sm) 0 0}.academy-reference-link{font-size:.9rem;line-height:1.75}
.academy-visual-sources{margin-top:var(--space-md);font-size:.85rem;line-height:1.75}.academy-visual-sources ul{margin:var(--space-sm) 0;padding-left:var(--space-lg)}.academy-visual-sources p{font-size:.8rem;color:var(--color-muted)}
.academy-image-viewer{border:1px solid var(--color-rule);border-radius:var(--radius-md);padding:var(--space-lg);background:var(--color-surface);color:var(--color-ink);width:min(1280px,calc(100vw - 32px));max-width:calc(100vw - 32px);max-height:calc(100dvh - 32px);box-sizing:border-box;overflow:auto}
.academy-image-viewer::backdrop{background:rgb(0 0 0 / .75)}
.academy-viewer-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-lg);position:sticky;top:calc(-1 * var(--space-lg));padding:var(--space-md) 0;background:var(--color-surface);z-index:1}
.academy-viewer-toolbar h2{font:600 clamp(1.2rem,3vw,1.6rem)/1.3 var(--font-display);margin:0;max-width:600px}.academy-viewer-toolbar>div{display:flex;gap:var(--space-sm);flex-wrap:wrap}
.academy-image-viewer>p{font-size:.85rem;line-height:1.75;color:var(--color-muted)}
.academy-viewer-stage{overflow:auto;max-height:68dvh;border:1px solid var(--color-rule);background:#fff;max-width:100%;overscroll-behavior:contain}
.academy-viewer-stage img{display:block;width:100%;max-width:100%;height:auto;filter:none}
.academy-image-viewer[data-original] .academy-viewer-stage img{width:auto;max-width:none;height:auto}
.academy-visual :focus-visible,.academy-image-viewer :focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}
@media(max-width:650px){
 .academy-visual{padding-block:var(--space-lg)}.academy-diagram{grid-template-columns:minmax(0,1fr)}
 .academy-diagram>li{flex-direction:row;padding:var(--space-md)}.academy-diagram>li>span{flex-shrink:0}
 .academy-diagram[data-layout=timeline]>li{border-top:0;border-left:3px solid var(--color-accent);padding-inline:var(--space-md)}
 .academy-diagram[data-layout=hierarchy]>li{margin-left:calc(var(--level,0) * 10px)}
 .academy-reference>header,.academy-look,.academy-reference figcaption,.academy-observe{padding:var(--space-md)}
 .academy-image-viewer{padding:var(--space-md)}.academy-viewer-toolbar{position:static;flex-direction:column}.academy-viewer-stage{max-height:60dvh}
}
@media print{.academy-image-button>span,.academy-image-viewer{display:none!important}.academy-reference,.academy-diagram{break-inside:avoid}}
/* Lesson-specific plates: image first, one reading clue and visible provenance.
 * The narrow SVG reflows the drawing itself; text is not a shrunken desktop screenshot. */
.academy-lesson-plate{position:relative;margin:var(--space-lg) 0 var(--space-xl);min-width:0;border:1px solid var(--color-rule);border-radius:var(--radius-md);overflow:clip;background:var(--color-surface)}
.academy-lesson-plate picture{display:block;min-width:0}
.academy-lesson-plate .academy-image-button{background:var(--color-soft);border-top:0}
.academy-lesson-plate .academy-image-button>span{display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);background:var(--course-key-surface,var(--color-soft));color:var(--color-ink);border-top:1px solid var(--color-rule);white-space:nowrap;text-decoration:none;min-height:48px}
.academy-lesson-plate .academy-image-button:hover>span{background:var(--color-accent-soft)}
.academy-lesson-plate .academy-image-button:active>span{box-shadow:inset 0 0 0 2px var(--color-accent)}
.academy-lesson-plate .academy-image-button:disabled{cursor:default;opacity:.65}
.academy-lesson-plate figcaption{padding:var(--space-lg);font-size:.9rem;line-height:1.75}
.academy-lesson-plate .academy-plate-insight{color:var(--color-ink);margin:0 0 var(--space-md);font-weight:500}
.academy-lesson-plate .academy-plate-credit,.academy-lesson-plate .academy-plate-sources{font-size:.75rem;color:var(--color-muted);margin:var(--space-sm) 0 0;line-height:1.8}
.academy-lesson-plate .academy-plate-sources a{color:inherit}
.academy-plate-sr{position:absolute!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;border:0!important;clip-path:inset(50%)!important;overflow:hidden!important;white-space:nowrap!important}
.academy-viewer-toolbar button{white-space:nowrap}
@media(max-width:650px){.academy-lesson-plate figcaption{padding:var(--space-md)}.academy-lesson-plate{margin-block:var(--space-md) var(--space-lg)}}
@media print{.academy-lesson-plate{break-inside:avoid}.academy-lesson-plate .academy-image-button{border:0}.academy-lesson-plate .academy-image-button>span{display:none}}