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img{max-width:100%;max-height:100%;object-fit:contain;transform-origin:center center;transition:transform .14s ease;touch-action:none;user-select:none}.media-lightbox-canvas img.is-draggable{cursor:grab}.media-lightbox-canvas img.is-dragging{cursor:grabbing;transition:none}@media(max-width:980px){.unit-marker{position:static;margin-bottom:.75rem}.unit-body{margin-left:0}.unit-content{grid-template-columns:1fr}.unit-graphic{margin:0 clamp(1.25rem,3vw,2rem) 1rem}.unit-media-header,.media-lightbox-toolbar{align-items:flex-start;flex-direction:column}.media-lightbox-actions{flex-wrap:wrap}}@media(max-width:640px){.unit-study-cards{grid-template-columns:1fr}.unit-copy{padding:1.15rem 1.15rem 1.15rem 1.35rem}.unit-accordion-trigger{align-items:flex-start;padding:1.15rem 1.15rem 1.15rem 1.35rem}.unit-graphic{margin-inline:1rem}}.unit-marker{color:#fff;background:linear-gradient(135deg,var(--azure),var(--green));border:0}.unit-accordion-trigger strong{max-width:920px}.unit-accordion-trigger small{max-width:980px}.unit-content{grid-template-columns:minmax(0,1fr) minmax(280px,360px);background:linear-gradient(180deg,#f8fbffc7,#fff),#fff}.topic-central-idea{max-width:880px;padding:1rem;color:#0d5f53;background:#effaf5;border:1px solid rgba(15,140,109,.18);border-left:4px solid var(--green);border-radius:8px}.topic-central-idea span,.exam-signals h4,.topic-deep-dive-heading span{display:block;margin:0 0 .45rem;color:var(--azure-dark);font-size:.74rem;font-weight:950;text-transform:uppercase}.topic-central-idea p{margin:0;color:#0d5f53;font-size:1.05rem;font-weight:820;line-height:1.55}.exam-signals{max-width:880px;margin-top:1rem;padding:1rem;background:#fff;border:1px solid var(--line);border-radius:8px}.exam-signals h4{color:var(--ink)}.exam-signals ul{display:grid;gap:.65rem;margin:0;padding:0;list-style:none}.exam-signals li{position:relative;padding-left:1.4rem;color:var(--muted);line-height:1.55}.exam-signals li:before{content:"";position:absolute;top:.58rem;left:0;width:8px;height:8px;background:var(--azure);border-radius:999px}.unit-graphic-label{color:var(--green)}.unit-graphic{background:linear-gradient(145deg,rgba(15,140,109,.08),transparent 55%),#f8fbff}.unit-graphic-number{background:var(--green)}.topic-deep-dive{grid-column:1 / -1;background:#fff;border-top:1px solid var(--line)}.topic-deep-dive-heading{padding:1rem clamp(1.25rem,3vw,2rem) 0}.topic-deep-dive-heading h4{margin:0;font-size:clamp(1.25rem,2vw,1.65rem)}.topic-deep-dive .unit-study-cards{border-top:0}.concept-bank{background:linear-gradient(180deg,#fff,#edf5fbb8),var(--paper)}.concept-bank .concept-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.concept-bank .concept-card{display:grid;grid-template-rows:auto auto auto 1fr;gap:.85rem;min-height:360px;padding:1.15rem;overflow:hidden}.concept-category{display:inline-flex;width:fit-content;margin:0;padding:.32rem .52rem;color:var(--azure-dark);background:#0078d414;border-radius:999px;font-size:.72rem;font-weight:950;text-transform:uppercase}.concept-bank .concept-card h3{font-size:clamp(1.25rem,2vw,1.55rem)}.concept-card-bottom{display:grid;gap:.7rem;align-self:end;padding:0;background:transparent;border:0}.concept-card-bottom section{padding:.85rem;background:#f7fbff;border:1px solid var(--line);border-radius:8px}.concept-card-bottom span{margin-bottom:.35rem;color:var(--green)}.concept-card-bottom p{font-size:.94rem}@media(max-width:980px){.unit-content,.concept-bank .concept-grid{grid-template-columns:1fr}.concept-bank .concept-card{min-height:auto}}