/* ==========================================================================
   Hessel Digital Library - hdl.jas2.com (staging: /var/www/hdl-staging)
   Visual system: "reading room", ink on warm paper, one serif accent.
   Accessibility: WCAG 2.1 AA contrast, visible :focus, reduced-motion
   support, no content in pseudo-elements, 16px+ body text.
   Fonts: Source Serif 4 self-hosted (P3); system stacks as fallback.
   ========================================================================== */

/* CSS-level assets must resolve under BOTH the /hdl/ staging path and the
   domain root: urls are relative to this file, so ../fonts works for both. */
@font-face {
  font-family: "Source Serif 4";
  src: url("../fonts/source-serif-4-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2026;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("../fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2026;
}

:root {
  /* Palette: archival ink & paper. All pairs tested ≥ 4.5:1 on paper. */
  --paper:        #faf7f2;   /* warm paper */
  --paper-deep:   #f1ebe1;    /* darker paper band */
  --ink:          #1c1917;    /* near-black, body text 15.9:1 */
  --ink-soft:     #433e3a;    /* secondary text  8.9:1 */
  --rule:         #d8d0c3;    /* hairlines */
  --accent:       #7a2018;    /* oxblood: links, focus rings  9.6:1 on paper */
  --accent-deep:  #5c170f;    /* hover state */
  --gold:         #8a5b06;   /* small accents: 5.9:1 on paper, 5.2:1 on paper-deep (QA fix) */
  --focus-ring:   #7a2018;

  --font-serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-sans:  system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono:  ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --space: 8px;            /* everything in multiples of 8 */
  --max: 72rem;            /* content width */
  --max-text: 38rem;       /* prose measure ~65ch */
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.75rem; }  /* sticky header (58px) clearance on all widths */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;          /* 17px */
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }

/* Visible focus for keyboard users: never removed */
:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: .75rem 1.25rem; z-index: 100;
  font-family: var(--font-sans); font-weight: 600;
}
.skip-link:focus { left: .5rem; top: .5rem; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.5rem); }
.prose { max-width: var(--max-text); }

.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section-tight { padding-block: clamp(2rem, 5vw, 3.5rem); }
.band { background: var(--paper-deep); border-block: 1px solid var(--rule); }

hr.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font-serif); line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 5.5vw, 3.4rem); font-weight: 400; letter-spacing: -0.015em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); font-weight: 400; }
h3 { font-size: 1.25rem; font-family: var(--font-sans); font-weight: 600; }
p { margin: 0 0 1em; }
.lede { font-size: clamp(1.1rem, 2.2vw, 1.3rem); line-height: 1.55; color: var(--ink-soft); max-width: 48rem; }
.small { font-size: .9rem; }
.muted { color: var(--ink-soft); }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-deep); text-decoration-color: currentColor; }

.kicker {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--gold);
  margin: 0 0 var(--space);
}
.byline-rule { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0 2rem; }
.byline-rule::after { content: ""; flex: 1; border-top: 1px solid var(--rule); }

/* ---------- Header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap { display: flex; align-items: center; gap: 1.5rem; min-height: 3.6rem; }
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark {
  width: 2.15rem; height: 2.15rem; flex: none;
  display: block;
  /* the tile form (ink tile + paper h) is carried by the inline SVG:
     corners, fills, and print behavior all come from the path itself */
}
.brand-mark svg { display: block; width: 100%; height: 100%; }
.brand-name { font-family: var(--font-serif); font-size: 1.12rem; font-weight: 400; letter-spacing: .01em; }
.brand-sub { display: block; font-family: var(--font-mono); font-size: .6rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }

.nav { margin-left: auto; }
.nav ul { display: flex; gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.nav a { text-decoration: none; color: var(--ink-soft); font-size: .95rem; font-weight: 500; white-space: nowrap; }
.nav a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 4px; }
.nav a[aria-current="page"] { color: var(--accent); }
@media (max-width: 620px) {
  .site-header .wrap { flex-wrap: wrap; padding-block: .5rem; gap: .6rem; }
  .brand-sub { display: none; }               /* tagline hidden: header compacts */
  .nav { width: 100%; }
  .nav ul { flex-wrap: wrap; gap: .2rem 1.1rem; }
  /* Thumb-sized tap targets: vertical padding on *inline* links extends the
     hit area (~34-38px tall) without shifting text layout; the negative margin
     compensates so spacing looks unchanged. Horizontal padding is nav-only,
     where labels sit in flex gaps. */
  .nav a, .site-footer a, .section a, .prose a, .small a {
    padding-block: .5rem; margin-block: -.5rem;
  }
  .nav a { padding-inline: .3rem; margin-inline: -.3rem; font-size: .9rem; }
  /* anchored targets must clear the sticky two-row header */
  html { scroll-padding-top: 7.5rem; }
}

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3.5rem, 9vw, 7rem) clamp(3rem, 7vw, 5rem); }
.hero-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.15fr .85fr; } }
.hero .count {
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .1em;
  color: var(--gold); text-transform: uppercase; margin-top: 1.6rem;
}

/* Hero player card */
.player {
  border: 1px solid var(--rule); background: #fff;
  box-shadow: 0 1px 2px rgb(28 25 23 / 6%), 0 10px 32px -18px rgb(28 25 23 / 25%);
}
.player iframe { width: 100%; aspect-ratio: 1 / 1; border: 0; display: block; }
.player-body { border-top: 1px solid var(--rule); padding: 1rem 1.1rem; display: flex; gap: 1rem; align-items: baseline; justify-content: space-between; }
.player-body h2 { font-size: 1.05rem; margin: 0; font-family: var(--font-serif); }
.player-body .muted { font-size: .8rem; }

/* ---------- Item cards / results ---------- */
.grid-cards { display: grid; gap: var(--space); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card {
  display: flex; flex-direction: column; text-decoration: none;
  background: #fff; border: 1px solid var(--rule); color: var(--ink);
  padding: 1.15rem 1.25rem 1rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.card:hover, .card:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 1px 2px rgb(28 25 23 / 5%), 0 12px 28px -20px rgb(28 25 23 / 30%);
  color: var(--ink);
}
.card h3 { margin: 0 0 .2rem; font-family: var(--font-serif); font-size: 1.06rem; font-weight: 600; }
.card p  { margin: 0; font-size: .9rem; color: var(--ink-soft); flex: 1; }
.card .count {
  font-family: var(--font-mono); font-size: .75rem; color: var(--gold);
  letter-spacing: .08em; margin-top: .8rem; text-transform: uppercase;
}

/* ---------- Browse / search ---------- */
.search-form { display: flex; gap: .6rem; max-width: 34rem; margin-block: 1.5rem; flex-wrap: wrap; }
.search-form label { position: absolute; left: -9999px; }
.search-form input[type="search"] {
  flex: 1 1 14rem; padding: .7rem .9rem; border: 1px solid var(--rule);
  background: #fff; border-radius: 2px; min-width: 0;
}
.search-form select { padding: .7rem .5rem; border: 1px solid var(--rule); background: #fff; border-radius: 2px; }
.search-form button {
  background: var(--ink); color: var(--paper); border: 0; padding: .7rem 1.3rem;
  font-weight: 600; border-radius: 2px;
}
.search-form button:hover { background: var(--accent-deep); }
.search-form button[disabled] { opacity: .45; cursor: default; }

.result-grid { display: grid; gap: var(--space); grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin-top: 1.5rem; }
.result {
  border: 1px solid var(--rule); background: #fff; color: var(--ink);
  display: flex; flex-direction: column; text-decoration: none; overflow: hidden;
}
.result:hover, .result:focus-visible { border-color: var(--accent); color: var(--ink); }
.result img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: var(--paper-deep); }
.result-body { padding: .8rem .9rem .9rem; }
.result-body h3 { font-size: .95rem; margin: 0 0 .15rem; font-family: var(--font-sans); font-weight: 600; }
.result-body .muted { font-size: .8rem; }

.status {
  font-family: var(--font-mono); font-size: .85rem; color: var(--ink-soft);
  margin-block: 1rem;
}
.status[data-state="error"] { color: #8a1f11; }

/* ---------- Feature rows (About / collection pages) ---------- */
.feature-row { display: grid; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; padding-block: 2.5rem; }
@media (min-width: 820px) { .feature-row { grid-template-columns: 220px 1fr; } }
.feature-thumb { border: 1px solid var(--rule); background: var(--paper-deep); }
.feature-thumb img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }

/* ---------- Statistics ---------- */
.stat-list { display: grid; gap: .7rem; max-width: 34rem; }
.stat-row {
  display: flex; justify-content: space-between; gap: 1rem;
  border-bottom: 1px solid var(--rule); padding-block: .55rem;
}
.stat-row dt { color: var(--ink-soft); margin: 0; }
.stat-row dd { margin: 0; font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--rule); background: var(--paper-deep); }
.site-footer .wrap { padding-block: 2.5rem 3rem; display: grid; gap: 2rem; }
@media (min-width: 760px) { .site-footer .wrap { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.site-footer h3 { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 .75rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; }
.site-footer a { color: var(--ink); text-decoration: none; font-size: .93rem; }
.site-footer a:hover { color: var(--accent); text-decoration: underline; }
.footer-note { margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--rule); font-size: .83rem; color: var(--ink-soft); display: flex; gap: 1rem; flex-wrap: wrap; justify-content: space-between; }

/* ---------- Embedded viewer modal ---------- */
/* Safe-center pattern: no align-items:center: the child's margin:auto centers
   it when it fits and lets it scroll *from the top* when it overflows
   (landscape phones). grid+center+overflow clips the box's top irrecoverably. */
.viewer-overlay {
  position: fixed; inset: 0; background: rgb(20 18 16 / 88%);
  display: flex; overflow-y: auto; padding: 1rem; z-index: 90;
  align-items: safe center;      /* fallback flex-start */
  justify-content: safe center;  /* falls back to flex-start (same result here) */
}
@supports not (align-items: safe center) {
  .viewer-overlay { align-items: flex-start; justify-content: flex-start; }
}
/* Deterministic fallback: JS toggles .is-tall when the box exceeds the
   viewport (rotation/landscape): top-aligns, overlay scrolls, close reachable. */
.viewer-overlay.is-tall { align-items: flex-start; }
.viewer-overlay[hidden] { display: none; }
.viewer-box { width: min(920px, 100%); background: #fff; border: 1px solid var(--rule); }
.viewer-box iframe { width: 100%; aspect-ratio: 4 / 3; border: 0; display: block; }
.viewer-close {
  display: block; width: 100%; background: var(--ink); color: var(--paper);
  border: 0; padding: .8rem; font-weight: 600;
}
.viewer-close:hover { background: var(--accent-deep); }

/* ---------- Radio (the 78 rpm station page) ---------- */
.radio-card {
  border: 1px solid var(--rule); background: #fff;
  box-shadow: 0 1px 2px rgb(28 25 23 / 6%), 0 10px 32px -18px rgb(28 25 23 / 25%);
  padding: 1.4rem 1.5rem; display: grid; gap: .4rem;
}
.radio-controls { display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap; }
.radio-btn {
  background: var(--ink); color: var(--paper); border: 0;
  padding: .8rem 1.6rem; font-weight: 600; border-radius: 2px; min-width: 6.5rem;
}
.radio-btn:hover { background: var(--accent-deep); }
.now-line { font-family: var(--font-serif); font-size: 1.3rem; margin: 0 0 .2rem; }
.now-line a { color: var(--ink); text-decoration: none; }
.now-line a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.radio-artist { margin: 0; }
.recent-list { list-style: none; margin: 0 0 2.5rem; padding: 0; display: grid; gap: 0; max-width: 46rem; }
.recent-list li {
  display: flex; gap: .7rem; align-items: baseline; flex-wrap: wrap;
  border-bottom: 1px solid var(--rule); padding-block: .45rem;
}
.recent-list a { min-inline-size: 0; }
.recent-time { font-family: var(--font-mono); font-size: .8rem; color: var(--ink-soft); margin-left: auto; font-variant-numeric: tabular-nums; }

/* ---------- Print (P3) ---------- */
@media print {
  .site-header, .site-footer, .search-form, .viewer-overlay,
  .player iframe, .skip-link, #result-pager { display: none !important; }
  body { font-size: 12pt; line-height: 1.5; background: #fff; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; color: var(--ink-soft); word-break: break-all; }
  .section, .hero { padding-block: 1rem !important; }
}