/* ============================================================================
   H5 Bird Flu Tracker — "Flyway" visual identity
   Design language after John James Audubon, The Birds of America (1827–1838):
   aged Whatman paper, bistre engraving ink, copperplate labels, and a
   hand-tinted watercolour palette repurposed as an epidemiological scale.

   Structure & class names are unchanged from the original — this is a re-skin.
   ========================================================================== */

:root {
  /* Category colours — hand-tinted, kept hue- & lightness-distinct.
     Must stay in sync with CATEGORY colours in app.js. */
  --c-human:     #A8322A;  /* carmine  — people (most severe) */
  --c-poultry:   #C6891F;  /* ochre    — poultry */
  --c-dairy:     #3F6B82;  /* slate    — dairy cattle */
  --c-wild_bird: #5E7A3A;  /* verdant  — wild birds */
  --c-mammal:    #7E579B;  /* amethyst — mammals */

  /* Paper & ink */
  --bg:       #F5ECD6;   /* aged Whatman ground */
  --bg-sunk:  #EFE3C7;
  --panel:    #FBF6E9;   /* raised plate */
  --ink:      #241C12;   /* bistre */
  --ink-soft: #6E5A3C;
  --line:     #D8C39A;   /* border on paper */
  --line-soft:#E6D6B2;
  --accent:      #A8322A; /* carmine — primary action / alarm */
  --accent-deep: #7E2018;
  --accent-ink:  #FBF6E9;
  --gilt:     #C9A24B;
  --sepia:    #6B4E2E;   /* choropleth ink wash */

  --shadow: 0 1px 0 rgba(255,255,255,.5) inset, 0 2px 14px -6px rgba(36,28,18,.34);
  --shadow-lift: 0 12px 40px -16px rgba(36,28,18,.46);
  --radius: 6px;
  --maxw: 1180px;

  --serif:   "Cormorant Garamond", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --body:    "EB Garamond", "Iowan Old Style", Palatino, Georgia, "Times New Roman", serif;
  --script:  "Pinyon Script", "Snell Roundhand", "Apple Chancery", cursive;
  --mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1C1610; --bg-sunk: #16110C; --panel: #241D16;
    --ink: #F2E6CC; --ink-soft: #B49B6F; --line: #3A2E20; --line-soft: #2C231A;
    --accent: #D65A4A; --accent-deep: #A8322A; --accent-ink: #1C1610; --gilt: #D9B65E;
    --sepia: #B99A6A;
    --shadow: 0 1px 0 rgba(255,255,255,.03) inset, 0 2px 18px -6px rgba(0,0,0,.6);
    /* keep category hues legible on dark ground */
    --c-human: #D65A4A; --c-poultry: #D6A758; --c-dairy: #7F9CAC;
    --c-wild_bird: #9DAE6E; --c-mammal: #A98FC4;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background-color: var(--bg); color: var(--ink);
  font-family: var(--body); font-size: 17px; line-height: 1.55;
  text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(120% 70% at 50% -8%, rgba(201,162,75,.10), transparent 60%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='0.035'/></svg>");
  background-attachment: fixed;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(14px, 3vw, 26px); }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.1; margin: 0 0 .35em; letter-spacing: .005em; }
a { color: var(--accent-deep); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
.muted { color: var(--ink-soft); font-weight: 400; }
.small { font-size: .85rem; }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ink);
  color: var(--accent-ink); padding: 10px 14px; z-index: 2000; border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(8px) saturate(1.1);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 900;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 14px; }
.logo { display: inline-flex; width: 46px; height: 46px; flex: none; }
.logo svg { width: 100%; height: 100%; }
.site-header h1 { font-size: clamp(1.35rem, 3vw, 1.9rem); margin: 0; letter-spacing: .01em; }
.tagline { margin: 1px 0 0; color: var(--ink-soft); font-size: .95rem; max-width: 62ch; font-style: italic; }
.status { text-align: right; font-size: .85rem; color: var(--ink-soft); font-family: var(--mono); }
.mode-badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-weight: 600;
  font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 4px;
  font-family: var(--serif); border: 1px solid currentColor;
}
.mode-badge.seed  { color: var(--ochre, #8A6326); color: #8A6326; }
.mode-badge.stale { color: #8A6326; }
.mode-badge.live  { color: #3E4A28; }
@media (prefers-color-scheme: dark){ .mode-badge.seed,.mode-badge.stale{ color:#D6A758; } .mode-badge.live{ color:#9DAE6E; } }

/* ---------- Hero (specimen plate) ---------- */
.hero { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: clamp(18px, 4vw, 44px); align-items: center; padding: clamp(22px, 4vw, 40px) 0 clamp(6px, 2vw, 14px); }
.hero__eyebrow { font-family: var(--serif); font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 12px; display: flex; align-items: center; gap: 12px; }
.hero__eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--gilt); }
.hero h2 { font-size: clamp(1.9rem, 4.5vw, 3rem); margin: 0 0 .3em; letter-spacing: .01em; line-height: 1.02; }
.hero h2 .script { font-family: var(--script); color: var(--accent); font-size: 1.15em; display: inline-block; }
.hero p { color: var(--ink-soft); max-width: 54ch; font-size: 1.05rem; margin: 0; }
.hero__plate { position: relative; background: #FBF6E9; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lift); padding: 12px; }
.hero__plate::after { content: ""; position: absolute; inset: 7px; border: 1px solid color-mix(in srgb, var(--gilt) 55%, transparent); border-radius: 3px; pointer-events: none; }
.hero__plate svg { display: block; width: 100%; height: auto; }
@media (max-width: 760px) { .hero { grid-template-columns: 1fr; } .hero__plate { max-width: 300px; margin: 4px auto 0; order: -1; } }

/* ---------- Banner ---------- */
.banner {
  background: color-mix(in srgb, var(--gilt) 16%, var(--panel));
  border-bottom: 1px solid var(--gilt); color: var(--ink);
  padding: 11px 0; font-size: .92rem;
}
.banner .wrap { display: block; }
.banner strong { font-family: var(--serif); }

/* ---------- Controls ---------- */
.controls {
  display: flex; gap: 18px 28px; flex-wrap: wrap; align-items: flex-end;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; margin: 20px 0; box-shadow: var(--shadow); position: relative;
}
.controls::after { content:""; position:absolute; inset:5px; border:1px solid color-mix(in srgb, var(--gilt) 45%, transparent); border-radius: 3px; pointer-events:none; }
.control-group { display: flex; flex-direction: column; gap: 8px; position: relative; z-index: 1; }
.control-label { font-family: var(--serif); font-size: .72rem; text-transform: uppercase; letter-spacing: .18em; color: var(--ink-soft); font-weight: 600; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line); background: var(--bg); color: var(--ink);
  padding: 7px 14px; border-radius: 999px; font-size: .92rem; cursor: pointer;
  display: inline-flex; align-items: center; gap: 7px; transition: .14s ease;
  font-family: var(--body);
}
.chip:hover { border-color: var(--accent); color: var(--accent-deep); }
.chip.is-active { background: var(--ink); color: var(--accent-ink); border-color: var(--ink); }
.chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; background: #999; border: 1px solid rgba(0,0,0,.15); }
[data-catdot="human"]{background:var(--c-human)}[data-catdot="poultry"]{background:var(--c-poultry)}
[data-catdot="dairy"]{background:var(--c-dairy)}[data-catdot="wild_bird"]{background:var(--c-wild_bird)}
[data-catdot="mammal"]{background:var(--c-mammal)}
select {
  padding: 7px 12px; border-radius: 4px; border: 1px solid var(--line);
  background: var(--bg); color: var(--ink); font-size: .92rem; font-family: var(--body);
}

/* ---------- Stat cards (plates) ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow); border-top: 3px solid var(--line);
  position: relative;
}
.stat .val { font-family: var(--mono); font-size: clamp(1.5rem, 3.5vw, 2.1rem); font-weight: 500; line-height: 1; font-variant-numeric: tabular-nums; }
.stat .lbl { font-size: .8rem; color: var(--ink-soft); margin-top: 7px; letter-spacing: .04em; }
.stat.human{border-top-color:var(--c-human)} .stat.poultry{border-top-color:var(--c-poultry)}
.stat.dairy{border-top-color:var(--c-dairy)} .stat.wild_bird{border-top-color:var(--c-wild_bird)}
.stat.mammal{border-top-color:var(--c-mammal)} .stat.geo{border-top-color:var(--gilt)}

/* ---------- Map (the plate) ---------- */
.map-section { position: relative; margin-bottom: 24px; }
#map {
  height: clamp(360px, 58vh, 620px); border-radius: var(--radius);
  border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--panel); z-index: 1;
}
.legend {
  position: absolute; bottom: 16px; right: 16px; z-index: 500;
  background: color-mix(in srgb, var(--panel) 94%, transparent); border: 1px solid var(--line); border-radius: 6px;
  padding: 11px 14px; font-size: .8rem; box-shadow: var(--shadow); max-width: 200px;
  backdrop-filter: blur(4px);
}
.legend h4 { font-family: var(--serif); margin: 0 0 7px; font-size: .68rem; text-transform: uppercase; letter-spacing: .16em; color: var(--ink-soft); }
.legend .row { display: flex; align-items: center; gap: 8px; margin: 4px 0; }
.legend .sw { width: 12px; height: 12px; border-radius: 50%; flex: none; border: 1px solid rgba(0,0,0,.2); }

/* ---------- List (specimen ledger) ---------- */
.list-section { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; margin-bottom: 24px; }
.list-head { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.list-head h2 { font-size: 1.4rem; margin: 0; }
#search { padding: 8px 13px; border: 1px solid var(--line); border-radius: 4px; background: var(--bg); color: var(--ink); min-width: 240px; font-size: .92rem; font-family: var(--body); }
#search:focus-visible { outline: 2px solid var(--accent); }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 10px 11px; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
th { position: sticky; top: 0; background: var(--panel); cursor: pointer; user-select: none; font-family: var(--serif); font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-soft); border-bottom: 2px solid var(--ink-soft); }
th.num, td.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
td.num { font-size: .88rem; }
tbody tr:hover { background: var(--bg-sunk); }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 999px; font-size: .74rem; font-weight: 600; font-family: var(--serif); letter-spacing: .08em; text-transform: uppercase; border: 1px solid currentColor; }
.pill .dot { width: 8px; height: 8px; border: none; }
.show-more { display: block; margin: 16px auto 2px; padding: 9px 22px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); border-radius: 4px; cursor: pointer; font-family: var(--serif); font-size: .95rem; }
.show-more:hover { border-color: var(--accent); color: var(--accent-deep); }

/* ---------- About ---------- */
.about { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px 24px; margin-bottom: 28px; }
.about h2 { font-size: 1.55rem; } .about h3 { font-size: 1.15rem; margin-top: 20px; }
.about p { max-width: 72ch; }
.source-list { margin: 0; padding-left: 0; list-style: none; display: grid; gap: 9px; }
.source-list li { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.src-badge { font-family: var(--serif); font-size: .66rem; font-weight: 700; text-transform: uppercase; padding: 2px 9px; border-radius: 999px; letter-spacing: .1em; border: 1px solid currentColor; }
.src-badge.live { color:#3E4A28; } .src-badge.error,.src-badge.empty { color:#7E2018; } .src-badge.seed { color:#8A6326; }
@media (prefers-color-scheme: dark){ .src-badge.live{color:#9DAE6E} .src-badge.error,.src-badge.empty{color:#D65A4A} .src-badge.seed{color:#D6A758} }
.source-status { margin: 12px 0; font-size: .9rem; color: var(--ink-soft); }
.disclaimer { font-size: .88rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 16px; margin-top: 20px; }
.disclaimer strong { color: var(--accent-deep); font-family: var(--serif); }

/* ---------- Footer ---------- */
.site-footer { border-top: 2px solid var(--ink-soft); background: var(--bg-sunk); padding: 20px 0; font-size: .88rem; color: var(--ink-soft); }
.site-footer p { margin: 4px 0; }

/* ---------- Leaflet theming ---------- */
.leaflet-popup-content-wrapper { background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow-lift); }
.leaflet-popup-tip { background: var(--panel); border: 1px solid var(--line); }
.leaflet-popup-content { font-family: var(--body); font-size: .95rem; margin: 13px 15px; }
.leaflet-container { font: inherit; }
.popup-title { font-family: var(--serif); font-weight: 700; font-size: 1.05rem; margin-bottom: 5px; letter-spacing: .02em; }
.popup-row { font-size: .86rem; color: var(--ink-soft); }
.leaflet-bar a { background: var(--panel); color: var(--ink); border-bottom-color: var(--line); }
.leaflet-bar a:hover { background: var(--bg-sunk); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }