.discovery-section { margin-block: clamp(2rem,5vw,4.5rem); }
.discovery-section > header { max-width: 54rem; margin-block-end: 1.5rem; }
.discovery-section h2 { font-size: clamp(1.8rem,3.5vw,3rem); letter-spacing: -.035em; line-height: 1.15; }
.discovery-section header > p:last-child { color: var(--muted); max-width: 48rem; }
.discovery-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1rem; align-items: start; }
.discovery-single { grid-template-columns: minmax(0,1fr); max-width: 52rem; }
.discovery-card { border: 1px solid var(--line); border-radius: 1.1rem; background: var(--panel-soft); overflow: hidden; }
.discovery-card > summary { cursor: pointer; padding: 1.4rem; }
.discovery-card summary > span { display: block; color: var(--cyan); font-size: .8rem; margin-block-end: .6rem; }
.discovery-card h3 { display: inline; font-size: 1.25rem; line-height: 1.4; }
.discovery-card[open] { border-color: var(--cyan); }
.discovery-body { padding: 0 1.4rem 1.4rem; }
.discovery-body fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.discovery-body legend { margin-block-end: 1rem; line-height: 1.65; }
.discovery-body button { display: block; width: 100%; text-align: start; padding: .8rem; margin-block: .5rem; border: 1px solid var(--line); border-radius: .6rem; color: var(--ink); background: transparent; font: inherit; cursor: pointer; }
.discovery-body button[hidden], [data-copy-citation][hidden] { display: none; }
.discovery-body button[aria-pressed="true"] { border-color: var(--cyan); background: color-mix(in srgb,var(--cyan) 12%,transparent); }
.discovery-answer { margin-block: 1.1rem; line-height: 1.7; }
.discovery-answer summary { color: var(--cyan); cursor: pointer; }
.discovery-answer [role="status"]:empty { display: none; }
.discovery-answer [role="status"] { font-weight: 600; }
.discovery-body nav { display: grid; gap: .7rem; font-size: .93rem; margin-block-start: 1rem; }
.discovery-research { display: flex; flex-wrap: wrap; gap: .8rem 1.5rem; padding-block: 1.3rem; margin-block-start: 1rem; border-block-start: 1px solid var(--line); font-size: .9rem; }
.reading-tools { padding: 1.2rem 1.4rem; margin-block: 0 2rem; border: 1px solid var(--line); border-radius: .8rem; }
.reading-tools > p { color: var(--muted); margin: 0 0 .6rem; }
.reading-tools summary { cursor: pointer; font-weight: 600; }
.reading-tools ol { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .55rem 2rem; padding-inline-start: 1.25rem; margin-block-end: 0; }
.article-prose h2 { scroll-margin-top: 6rem; }
.article-citation { padding: 1.2rem; margin-block: 2rem; border-inline-start: 3px solid var(--cyan); background: var(--panel-soft); overflow-wrap: anywhere; }
.article-citation summary { cursor: pointer; font-weight: 600; }
.article-citation button { color: var(--ink); background: transparent; border: 1px solid var(--line); border-radius: .5rem; padding: .6rem .9rem; cursor: pointer; font: inherit; margin-inline-end: 1rem; }
.article-citation [role="status"]:empty { display: none; }
@media (max-width: 760px) { .discovery-grid, .reading-tools ol { grid-template-columns: minmax(0,1fr); } }
@media (forced-colors: active) { .discovery-body button[aria-pressed="true"] { outline: 2px solid Highlight; } }