/* Site 21 SciencePDF platform framework and the single reviewed USGS pilot. */

.sci21-platform-hero {
  display: grid !important;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr);
}
.sci21-platform-hero .sci21-hero-copy { display: block !important; }
.sci21-platform-hero .sci21-hero-copy > p { max-width: 720px; }

.sci21-platform-hero h1 { max-width: 850px; font-size: clamp(2.6rem, 5.7vw, 5.4rem); }
.sci21-hero-proof { display: flex; flex-wrap: wrap; gap: 9px; padding: 0; margin: 22px 0 0; list-style: none; }
.sci21-hero-proof li { padding: 7px 11px; border: 1px solid rgba(13,118,110,.2); border-radius: 999px; background: rgba(255,255,255,.72); font-size: .84rem; font-weight: 750; }
.sci21-data-preview { padding: clamp(22px,4vw,42px); border: 1px solid rgba(13,118,110,.23); border-radius: 18px; background: #102e2a; color: #f8fffc; box-shadow: 0 24px 54px rgba(9,52,47,.22); }
.sci21-data-preview strong { display: block; margin: 10px 0 18px; font-size: clamp(1.75rem,3vw,3rem); line-height: 1.04; }
.sci21-data-preview a { color: #f8c679; font-weight: 850; }
.sci21-data-eyebrow { margin: 0; color: #9bddd6; text-transform: uppercase; letter-spacing: .1em; font-size: .76rem; font-weight: 900; }
.sci21-mini-chart { display: flex; align-items: end; gap: 9px; height: 125px; padding: 15px; border-left: 1px solid #8bd2ca; border-bottom: 1px solid #8bd2ca; }
.sci21-mini-chart i { flex: 1; height: var(--bar); background: linear-gradient(#f4a94e,#f9d698); border-radius: 5px 5px 0 0; }
.sci21-worlds { margin: clamp(52px,8vw,92px) auto; }
.sci21-world-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 14px; }
.sci21-world-grid a { min-height: 185px; padding: 23px; border: 1px solid rgba(13,118,110,.18); border-radius: 14px; background: rgba(255,255,255,.82); color: var(--sci21-ink); text-decoration: none; transition: transform .18s ease,border-color .18s ease; }
.sci21-world-grid a:hover { transform: translateY(-3px); border-color: var(--sci21-teal); }
.sci21-world-grid span { display: block; color: var(--sci21-amber); font-size: .78rem; font-weight: 950; letter-spacing: .12em; }
.sci21-world-grid strong { display: block; margin: 28px 0 6px; font-size: 1.06rem; }
.sci21-world-grid small { color: var(--sci21-muted); line-height: 1.5; }

.sci21-investigation { display: grid; gap: clamp(30px,5vw,64px); }
.sci21-investigation-hero { display: grid !important; grid-template-columns: minmax(0,1.25fr) minmax(260px,.75fr); gap: 30px; padding: clamp(24px,5vw,58px); border: 1px solid rgba(13,118,110,.22); border-radius: 18px; background: linear-gradient(135deg,#eefbf7,#fff5e5); }
.sci21-investigation-hero h2 { max-width: 780px; margin: 0; font-size: clamp(2rem,4.7vw,4.5rem); line-height: 1; }
.sci21-investigation-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 25px; }
.sci21-text-link { padding: 10px; color: var(--sci21-teal); font-weight: 800; }
.sci21-dataset-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; }
.sci21-dataset-facts div { padding: 18px; border: 1px solid rgba(13,118,110,.16); border-radius: 12px; background: rgba(255,255,255,.76); }
.sci21-dataset-facts dt { color: var(--sci21-muted); font-size: .75rem; font-weight: 850; text-transform: uppercase; }
.sci21-dataset-facts dd { margin: 5px 0 0; font-weight: 900; }
.sci21-age-layers { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.sci21-age-layers article { padding: 24px; border-top: 4px solid var(--sci21-teal); background: #fff; box-shadow: 0 10px 28px rgba(13,118,110,.08); }
.sci21-age-layers p { margin: 0 0 20px; color: var(--sci21-amber); font-size: .76rem; font-weight: 900; text-transform: uppercase; }
.sci21-age-layers h3 { margin: 0 0 8px; }
.sci21-age-layers span { color: var(--sci21-muted); line-height: 1.6; }
.sci21-section-header { max-width: 850px; }
.sci21-data-lab,.sci21-questions,.sci21-source-card,.sci21-method { padding: clamp(24px,4vw,48px); border: 1px solid rgba(13,118,110,.17); border-radius: 16px; background: rgba(255,255,255,.9); }
.sci21-filter { display: grid; grid-template-columns: minmax(230px,1fr) minmax(220px,2fr) auto; gap: 16px; align-items: center; margin: 28px 0; padding: 16px; border-radius: 10px; background: #edf8f5; }
.sci21-filter input { width: 100%; accent-color: var(--sci21-teal); }
.sci21-data-layout { display: grid; grid-template-columns: minmax(180px,.55fr) minmax(0,1.45fr); gap: 30px; align-items: start; }
.sci21-chart { display: grid; gap: 10px; }
.sci21-chart-row { display: grid; grid-template-columns: 22px 1fr 35px; gap: 8px; align-items: center; }
.sci21-chart-row i { display: block; width: var(--magnitude); height: 20px; border-radius: 3px; background: linear-gradient(90deg,var(--sci21-teal),#5fb7ac); }
.sci21-table-wrap { overflow-x: auto; }
.sci21-data-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.sci21-data-table caption { text-align: left; margin-bottom: 8px; font-weight: 850; }
.sci21-data-table th,.sci21-data-table td { padding: 10px; border-bottom: 1px solid rgba(13,118,110,.15); text-align: left; }
.sci21-data-table th { background: #edf8f5; }
.sci21-method { display: grid; grid-template-columns: minmax(200px,.55fr) minmax(0,1.45fr); gap: 30px; }
.sci21-method ol { margin: 0; padding-left: 24px; }
.sci21-method li { margin-bottom: 13px; line-height: 1.55; }
.sci21-question-list { display: grid; gap: 14px; margin: 28px 0; }
.sci21-question { display: grid; grid-template-columns: 42px 1fr; gap: 14px; padding: 20px; border: 1px solid rgba(13,118,110,.17); border-radius: 12px; }
.sci21-question > span { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--sci21-teal); color: #fff; font-weight: 900; }
.sci21-question h3 { margin: 4px 0 14px; font-size: 1.05rem; }
.sci21-question label { display: block; margin-bottom: 5px; color: var(--sci21-muted); font-size: .78rem; font-weight: 850; }
.sci21-question textarea { box-sizing: border-box; width: 100%; padding: 11px; border: 1px solid #aac8c3; border-radius: 7px; font: inherit; }
.sci21-check-button { min-height: 42px; margin-top: 9px; padding: 8px 13px; border: 1px solid var(--sci21-teal); border-radius: 7px; background: #fff; color: var(--sci21-teal); font-weight: 850; cursor: pointer; }
.sci21-worked-answer { margin-top: 10px; padding: 13px; border-left: 4px solid var(--sci21-amber); background: #fff7ea; }
.sci21-complete[data-completed="true"] { background: #264b44; }
.sci21-source-card { background: #102e2a; color: #f5fffb; }
.sci21-source-card a { color: #f8c679; }
.sci21-source-card dl { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sci21-source-card dl div { min-width: 0; padding: 13px; background: rgba(255,255,255,.08); }
.sci21-source-card dt { color: #a7ddd6; font-size: .76rem; text-transform: uppercase; }
.sci21-source-card dd { margin: 5px 0 0; overflow-wrap: anywhere; }
.sci21-limitations { margin-top: 24px; }
.sci21-btn:focus-visible,.sci21-world-grid a:focus-visible,.sci21-check-button:focus-visible,.sci21-question textarea:focus-visible { outline: 3px solid #e38a24; outline-offset: 3px; }

@media (max-width: 900px) {
  .sci21-platform-hero,.sci21-investigation-hero,.sci21-data-layout,.sci21-method { grid-template-columns: 1fr; }
  .sci21-world-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .sci21-age-layers { grid-template-columns: 1fr; }
  .sci21-filter { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .sci21-home,.sci21-list,.sci21-detail { width: min(calc(100% - 20px),var(--sci21-width)); }
  .sci21-world-grid { grid-template-columns: 1fr; }
  .sci21-world-grid a { min-height: 145px; }
  .sci21-dataset-facts,.sci21-source-card dl { grid-template-columns: 1fr; }
  .sci21-question { grid-template-columns: 1fr; }
  .sci21-investigation-actions .sci21-btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) { .sci21-world-grid a { transition: none; } }

@media print {
  .sci21-age-layers,.sci21-filter,.sci21-method,.sci21-source-card,.sci21-investigation-actions,.sci21-complete { display: none !important; }
  .sci21-investigation,.sci21-data-lab,.sci21-questions { display: block; padding: 0; border: 0; }
  .sci21-question { break-inside: avoid; }
}