/*
 * research-books / Record Library brand (from pdflibrary's public.css), loaded after app.css.
 * Warm cream background, navy structure, coral accent, teal links; PT Serif headings, Josefin
 * Sans body. Charts use --accent (coral) as their single series color.
 */
:root {
  --bg: #fff0e1;
  --ink: #0b1640;
  --navy-mid: #1e4d7f;
  --teal: #2f7c9a;      /* a step darker than the brand teal so links pass contrast on cream */
  --accent: #d4503f;    /* brand coral, darkened slightly for bar/text contrast */
  --muted: #58595b;
  --line: #e2d3c3;
  --warm: #fff7f0;
  --tan: #efe4d8;
}
body {
  background: var(--bg); color: #2b2b33;
  font-family: "Josefin Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}
h1, h2, h3, .hero-title { font-family: "PT Serif", Georgia, serif; color: var(--ink); }
main a { color: var(--navy-mid); }
main a:hover { color: var(--teal); }

header.topbar { background: linear-gradient(90deg, #0b1640 0%, #1e4d7f 100%); padding: 0.85rem 1.5rem; }
header.topbar .brand { font-family: "PT Serif", Georgia, serif; font-size: 1.2rem; letter-spacing: .01em; }
header.topbar nav a { opacity: .9; }
header.topbar nav a:hover { opacity: 1; color: #9fd3e6; text-decoration: none; }
header.topbar .muted { color: rgba(255, 247, 240, .65); }

.card { background: var(--warm); border-color: var(--line); }
.stat { background: var(--warm); border-color: var(--line); }
.btn { background: var(--accent); }
.btn:hover { filter: brightness(.95); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--ink); border-color: var(--line); }
.badge { background: var(--tan); color: var(--ink); }
.proc-table th { color: var(--navy-mid); text-transform: uppercase; letter-spacing: .03em; font-size: .72rem; }
.proc-table tbody tr:nth-child(even) { background: rgba(239, 228, 216, .35); }
input[type=text], input[type=search], input[type=date], input[type=number], textarea, select { background: #fff; border-color: var(--line); }
.site-footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 2rem 1rem 2.5rem; }

/* ── Front page ───────────────────────────────────────────────────────── */
.hero {
  text-align: center; padding: 2.75rem 1.5rem 2.25rem; margin-bottom: 1.5rem;
  background: linear-gradient(180deg, #fffaf4 0%, var(--bg) 100%);
  border: 1px solid var(--line); border-radius: 12px;
}
.hero-title { text-transform: uppercase; font-size: 2rem; line-height: 1.2; margin: 0 auto .6rem; max-width: 760px; letter-spacing: .01em; }
.hero-sub { color: var(--muted); margin: 0 auto 1.4rem; max-width: 600px; font-size: 1.05rem; }
.hero-search { display: flex; gap: .5rem; max-width: 620px; margin: 0 auto .8rem; }
.hero-search input { flex: 1; padding: .8rem 1rem; font-size: 1.05rem; border-radius: 8px; }
.hero-search .btn { padding: .6rem 1.3rem; font-size: 1.05rem; border-radius: 8px; }
.hero-stats { color: var(--muted); font-size: .9rem; margin: 0; }

.home-section { margin-bottom: 1.75rem; }
.home-section > h2, .about h2 {
  display: inline-block; color: var(--warm); background: var(--accent);
  padding: .25rem .85rem; border-radius: 6px; font-size: 1.15rem; margin: 0 0 .9rem;
}
.lead-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: .75rem; }
.lead-card {
  display: flex; flex-direction: column; gap: .35rem; padding: .9rem 1rem; border-radius: 10px;
  background: var(--warm); border: 1px solid var(--line); border-left: 4px solid var(--accent); color: #2b2b33;
}
main a.lead-card { color: #2b2b33; }
.lead-card:hover { border-color: var(--teal); text-decoration: none; }
.lead-kicker { font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--navy-mid); }
.lead-card.more { justify-content: center; align-items: center; border-left-color: var(--teal); font-weight: 600; }

.dataset-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.dataset-card {
  display: flex; flex-direction: column; gap: .45rem; padding: 1.1rem 1.15rem; border-radius: 12px;
  background: linear-gradient(135deg, #0b1640 0%, #1e4d7f 100%); color: var(--warm);
  box-shadow: 0 4px 14px rgba(11, 22, 64, .18); transition: transform .15s ease, box-shadow .15s ease;
}
main a.dataset-card, main a.dataset-card:hover { color: var(--warm); text-decoration: none; }
.dataset-card:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(11, 22, 64, .3); }
.dataset-name { font-family: "PT Serif", Georgia, serif; font-size: 1.15rem; font-weight: 700; line-height: 1.25; }
.dataset-row { font-size: .88rem; color: rgba(255, 247, 240, .78); }
.dataset-facts { display: flex; flex-wrap: wrap; gap: .25rem .9rem; font-size: .85rem; color: rgba(255, 247, 240, .9); }
.dataset-foot { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: auto; padding-top: .3rem; }
.dataset-card .badge { background: rgba(255, 247, 240, .16); color: var(--warm); }
.about { margin-top: .5rem; }
.about p { max-width: 760px; }
@media (max-width: 640px) { .hero-title { font-size: 1.5rem; } .hero-search { flex-direction: column; } }

/* Narrow screens: header wraps instead of overflowing */
@media (max-width: 760px) {
  header.topbar { flex-wrap: wrap; gap: .4rem 1rem; padding: .7rem 1rem; }
  header.topbar .brand small { display: none; }
  header.topbar nav { order: 3; width: 100%; flex-wrap: wrap; gap: .4rem 1rem; }
  header.topbar .muted { display: none; }
  main { padding: 0 1rem; }
}

/* Upload wizard */
.steps { display: flex; gap: .5rem; list-style: none; padding: 0; margin: 0 0 1.25rem; counter-reset: s; flex-wrap: wrap; }
.steps li { counter-increment: s; padding: .35rem .8rem; border-radius: 999px; background: var(--tan); color: var(--muted); font-size: .85rem; }
.steps li::before { content: counter(s) ". "; font-weight: 700; }
.steps li.on { background: var(--ink); color: var(--warm); }
.upload-form label { display: block; margin: .6rem 0; font-size: .9rem; color: var(--navy-mid); }
.upload-form h2 { margin-top: 1.25rem; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.file-drop { width: 100%; padding: 1.25rem; border: 2px dashed var(--line); border-radius: 10px; background: #fff; }
.preview { max-height: 260px; overflow: auto; margin-bottom: 1rem; }
.combine { display: block; padding: .6rem .8rem; background: #fffbeb; border: 1px solid #fde68a; border-radius: 8px; margin: .5rem 0 1rem; }
.warn-text { color: #92400e; } .error-text { color: #991b1b; }
@media (max-width: 640px) { .grid2 { grid-template-columns: 1fr; } }
header.topbar .brand { white-space: nowrap; }
header.topbar nav { flex-wrap: wrap; }
.about-facts { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: .5rem 0 1rem; }
.about-facts dt { color: var(--muted, #666); font-size: .9em; }
.about-facts dd { margin: 0; }
button.linklike { background: none; border: 0; padding: 0; color: inherit; text-decoration: underline; cursor: pointer; font: inherit; }