/* Ambrozia — design system. Subject: late-August field at dusk, pollen haze, old herbarium paper. */

@font-face { font-family: "Fraunces"; src: url("fonts/fraunces-normal-latin.woff2") format("woff2"); font-weight: 400 900; font-display: swap; }
@font-face { font-family: "Fraunces"; src: url("fonts/fraunces-normal-latin-ext.woff2") format("woff2"); font-weight: 400 900; font-display: swap; unicode-range: U+0100-02AF, U+0300-036F; }
@font-face { font-family: "Fraunces"; font-style: italic; src: url("fonts/fraunces-italic-az.woff2") format("woff2"); font-weight: 400 900; font-display: swap; }
@font-face { font-family: "Fraunces"; font-style: italic; src: url("fonts/fraunces-italic-ro.woff2") format("woff2"); font-weight: 400 900; font-display: swap; unicode-range: U+0100-02AF, U+0300-036F; }
@font-face { font-family: "Plex Sans"; src: url("fonts/IBMPlexSans-latin.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Plex Sans"; src: url("fonts/IBMPlexSans-latin-ext.woff2") format("woff2"); font-weight: 400 700; font-display: swap; unicode-range: U+0100-02AF, U+0300-036F; }

:root {
  --bg: #f6f1e6;
  --bg-raised: #fffdf5;
  --panel: #fbf7ec;
  --ink: #23271f;
  --ink-soft: #3d4136;
  --muted: #5d6151;
  --line: #d9d2bd;
  --line-soft: #e6e0cd;
  --accent: #8a5a00;
  --accent-strong: #6f4700;
  --accent-fill: #c98f1b;
  --leaf: #3f5d2f;
  --accent-soft: rgba(201, 143, 27, 0.18);
  --ok: #2e5d33;
  --focus: #8a5a00;
  --map-land: #ece5d2;
  --map-line: #b9b193;
  --map-hot: #c98f1b;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(35, 39, 31, 0.10);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Plex Sans", system-ui, sans-serif;
}

html[data-theme="dark"] {
  --bg: #101712;
  --bg-raised: #16211b;
  --panel: #1a2620;
  --ink: #ece7d8;
  --ink-soft: #cfc9b8;
  --muted: #a9a692;
  --line: #2b3a31;
  --line-soft: #223028;
  --accent: #e3ac4e;
  --accent-strong: #f2c168;
  --accent-fill: #e3ac4e;
  --leaf: #8fae7c;
  --accent-soft: rgba(227, 172, 78, 0.14);
  --ok: #7fc48a;
  --focus: #e3ac4e;
  --map-land: #17241d;
  --map-line: #33463b;
  --map-hot: #e3ac4e;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  -webkit-text-size-adjust: 100%;
}

main { position: relative; }

.container { width: min(1220px, 100% - 2.5rem); margin-inline: auto; }
.narrow { width: min(46rem, 100%); }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--bg-raised); color: var(--ink);
  padding: 0.75rem 1.25rem; border: 2px solid var(--focus); border-radius: 0 0 8px 0;
  font-weight: 700; text-decoration: none;
}
.skip-link:focus { left: 0; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 60;
  height: 44px; display: flex; align-items: center; gap: 0.9rem;
  padding-inline: max(1.1rem, env(safe-area-inset-left)) max(1.1rem, env(safe-area-inset-right));
  padding-top: env(safe-area-inset-top);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.82rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.45rem; text-decoration: none; color: var(--ink); font-family: var(--serif); font-weight: 700; font-size: 0.98rem; letter-spacing: 0.02em; white-space: nowrap; }
.brand svg { color: var(--accent); flex: none; }
.brand-word { white-space: nowrap; }
.brand-accent { color: var(--accent); }
.topnav { display: flex; gap: 0.15rem; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.topnav::-webkit-scrollbar { display: none; }
.topnav a { color: var(--ink-soft); text-decoration: none; padding: 0.25rem 0.55rem; border-radius: 6px; white-space: nowrap; }
.topnav a:hover { color: var(--accent); background: var(--accent-soft); }
.icon-btn { border: 1px solid var(--line); background: transparent; color: var(--ink); width: 36px; height: 32px; border-radius: 8px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.lang-switch { border: 1px solid var(--line); border-radius: 8px; padding: 0.3rem 0.55rem; color: var(--ink-soft); text-decoration: none; font-weight: 600; letter-spacing: 0.04em; flex: none; }
.lang-switch:hover { border-color: var(--accent); color: var(--accent); }
@media (max-width: 860px) { .topnav { display: none; } }

/* ---------- reading rail (v2 standard) ---------- */
.rail { display: none; }
@media (min-width: 1100px) {
  .rail { --col: 76.25rem; --gut: 1.25rem; display: flex; flex-direction: column; position: fixed; top: 50%; left: calc(50% + var(--col) / 2 + var(--gut)); transform: translateY(-50%); z-index: 40; margin: 0; padding: 0.4rem 0; max-height: calc(100vh - 7rem); }
  .rail::before { content: ""; position: absolute; left: calc(0.875rem - 0.5px); top: 1.1rem; bottom: 1.1rem; width: 1px; background: var(--line); }
  .rail-dot { position: relative; display: flex; align-items: center; justify-content: center; width: 1.75rem; height: 1.75rem; text-decoration: none; border-radius: 50%; }
  .rail-dot .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); box-shadow: 0 0 0 3px var(--bg); transition: transform 0.2s, background 0.2s, box-shadow 0.2s; flex: none; }
  .rail-dot:hover .dot, .rail-dot:focus-visible .dot { background: var(--accent); transform: scale(1.25); }
  .rail-dot[aria-current="true"] .dot { background: var(--accent); transform: scale(1.45); box-shadow: 0 0 0 3px var(--bg), 0 0 0 4.5px color-mix(in srgb, var(--accent) 38%, transparent); }
  .rail-dot:focus-visible { outline: 2px solid var(--accent); outline-offset: -1px; }
  .rail-label { position: absolute; right: calc(100% + 0.3rem); top: 50%; transform: translate(6px, -50%); padding: 0.22rem 0.65rem; border: 1px solid var(--line); border-radius: 0.5rem; background: var(--bg); color: var(--ink); box-shadow: 0 6px 20px rgba(0,0,0,0.14); font-size: 0.82rem; font-weight: 600; line-height: 1.3; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.15s, transform 0.15s; }
  .rail-dot:hover .rail-label, .rail-dot:focus-visible .rail-label { opacity: 1; transform: translate(0, -50%); }
}
@media (min-width: 1400px) {
  .rail-label { right: auto; left: calc(100% + 0.15rem); max-width: calc(50vw - var(--col) / 2 - var(--gut) - 3.25rem); overflow: hidden; text-overflow: ellipsis; padding: 0.1rem 0.2rem; border-color: transparent; background: transparent; box-shadow: none; color: var(--muted); transform: translate(-4px, -50%); }
  .rail-dot:hover .rail-label, .rail-dot:focus-visible .rail-label { color: var(--accent-strong); }
}
@media (prefers-reduced-motion: reduce) { .rail .dot, .rail-label { transition: none; } }

/* ---------- hero ---------- */
.hero { min-height: calc(100vh - 44px); min-height: var(--stable-vh, calc(100svh - 44px)); display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); gap: 2.2rem; align-items: center; padding: 1.6rem 0 2.4rem; position: relative; overflow: hidden; }
@media (max-width: 1020px) { .hero { grid-template-columns: 1fr; min-height: 0; gap: 1.2rem; padding-top: 1.2rem; } }
.hero-copy { position: relative; z-index: 1; }
.kicker { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--leaf); font-weight: 700; margin-bottom: 0.9rem; }
.kicker::before { content: ""; width: 26px; height: 2px; background: var(--leaf); display: inline-block; }
h1 { font-family: var(--serif); font-weight: 640; font-size: clamp(2.35rem, 4.6vw, 3.55rem); line-height: 1.04; letter-spacing: -0.015em; margin: 0 0 1.1rem; text-wrap: balance; }
h1 em { font-style: italic; color: var(--accent); }
.deck { font-size: 1.12rem; color: var(--ink-soft); max-width: 56ch; margin: 0 0 1.35rem; }
.deck strong { color: var(--ink); }

.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 1.3rem; }
.chip { font-size: 0.8rem; border: 1px solid var(--line); border-radius: 999px; padding: 0.3rem 0.75rem; color: var(--ink-soft); background: var(--panel); }
.chip b { color: var(--accent-strong); font-variant-numeric: tabular-nums; }
html[data-theme="dark"] .chip b { color: var(--accent-strong); }

.scroll-cue { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--muted); font-size: 0.85rem; text-decoration: none; border: none; background: none; cursor: pointer; padding: 0.4rem 0; font-family: var(--sans); }
.scroll-cue svg { transition: transform 0.25s ease; }
.scroll-cue:hover { color: var(--accent); }
.scroll-cue:hover svg { transform: translateY(4px); }

/* ---------- map panel ---------- */
.map-panel { position: relative; height: min(74vh, 720px); min-height: 480px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--map-land); box-shadow: var(--shadow); display: flex; flex-direction: column; }
@media (max-width: 1020px) { .map-panel { height: 62vh; min-height: 380px; } }
.map-head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.8rem; padding: 0.65rem 0.9rem 0.45rem; background: color-mix(in srgb, var(--bg-raised) 82%, transparent); border-bottom: 1px solid var(--line-soft); }
.map-title { font-family: var(--serif); font-weight: 600; font-size: 0.92rem; letter-spacing: 0.02em; }
.map-sub { font-size: 0.72rem; color: var(--muted); }
.layer-toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.layer-toggle button { border: 0; background: transparent; color: var(--ink-soft); font: inherit; font-size: 0.75rem; padding: 0.35rem 0.6rem; cursor: pointer; }
.layer-toggle button[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent-strong); font-weight: 700; }

.map-canvas-wrap { position: relative; flex: 1; min-height: 0; }
#mapCanvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: crosshair; }
.map-tooltip { position: absolute; z-index: 5; pointer-events: none; background: var(--bg-raised); border: 1px solid var(--line); border-radius: 8px; padding: 0.3rem 0.55rem; font-size: 0.75rem; box-shadow: var(--shadow); max-width: 220px; line-height: 1.4; }
.map-tooltip b { color: var(--accent-strong); }

.map-foot { padding: 0.55rem 0.9rem 0.7rem; background: color-mix(in srgb, var(--bg-raised) 88%, transparent); border-top: 1px solid var(--line-soft); display: grid; gap: 0.45rem; }
.year-row { display: flex; align-items: center; gap: 0.6rem; }
.play-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--accent); background: transparent; color: var(--accent-strong); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.play-btn:hover { background: var(--accent-soft); }
#yearRange { flex: 1; accent-color: var(--accent-fill); height: 28px; cursor: pointer; }
.year-label { font-family: var(--serif); font-size: 1.35rem; font-weight: 700; min-width: 3.2ch; text-align: right; font-variant-numeric: tabular-nums; color: var(--accent-strong); }

.map-legend { display: flex; align-items: center; gap: 0.5rem; font-size: 0.68rem; color: var(--muted); }
.legend-ramp { height: 10px; width: 130px; border-radius: 5px; background: linear-gradient(90deg, color-mix(in srgb, var(--map-hot) 8%, var(--map-land)), color-mix(in srgb, var(--map-hot) 30%, var(--map-land)), color-mix(in srgb, var(--map-hot) 52%, var(--map-land)), color-mix(in srgb, var(--map-hot) 76%, var(--map-land)), var(--map-hot)); border: 1px solid var(--line-soft); }

.map-statusline { font-size: 0.72rem; color: var(--muted); min-height: 1.1em; }

/* ---------- county picker ---------- */
.picker { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0.9rem 0 0.2rem; }
.picker label { font-size: 0.8rem; color: var(--muted); }
.picker select { font: inherit; font-size: 0.92rem; padding: 0.45rem 0.6rem; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-raised); color: var(--ink); max-width: 220px; }
.county-grid { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.6rem 0 0; }
.county-grid button { font: inherit; font-size: 0.74rem; padding: 0.28rem 0.55rem; border-radius: 999px; border: 1px solid var(--line); background: transparent; color: var(--ink-soft); cursor: pointer; }
.county-grid button:hover { border-color: var(--accent); color: var(--accent-strong); }
.county-grid button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-strong); font-weight: 700; }

.reset-row { display: flex; gap: 0.6rem; align-items: center; margin-top: 0.5rem; }
.reset-link { border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--ink-soft); font: inherit; font-size: 0.82rem; padding: 0.35rem 0.7rem; cursor: pointer; }
.reset-link:hover { border-color: var(--accent); color: var(--accent); }
.map-reset { font-size: 0.7rem; padding: 0.28rem 0.55rem; }

/* ---------- county answer panel ---------- */
.county-answer { border: 1px solid var(--line); border-left: 4px solid var(--accent); background: var(--panel); border-radius: var(--radius); padding: 1rem 1.1rem; margin: 0.8rem 0 0; }
.county-answer h3 { font-family: var(--serif); margin: 0 0 0.35rem; font-size: 1.3rem; }
.answer-stats { display: flex; flex-wrap: wrap; gap: 1.4rem; margin: 0.55rem 0 0.2rem; }
.answer-stat b { display: block; font-family: var(--serif); font-size: 1.5rem; color: var(--accent-strong); font-variant-numeric: tabular-nums; line-height: 1.1; }
.answer-stat span { font-size: 0.72rem; color: var(--muted); letter-spacing: 0.02em; }

/* ---------- share row ---------- */
.share-row { display: flex; align-items: center; gap: 0.45rem; margin: 0.65rem 0 0.1rem; flex-wrap: wrap; }
.share-label { font-size: 0.78rem; color: var(--muted); margin-right: 0.15rem; }
.share-btn { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--ink-soft); display: inline-flex; align-items: center; justify-content: center; text-decoration: none; cursor: pointer; }
.share-btn:hover { border-color: var(--accent); color: var(--accent); }
.share-status { font-size: 0.75rem; color: var(--ok); min-height: 1.2em; }

/* ---------- chapters ---------- */
.chapter { padding: 3.4rem 0 0.6rem; border-top: 1px solid var(--line-soft); }
.chapter-inner { width: min(1120px, 100% - 2.5rem); margin-inline: auto; }
.eyebrow { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--leaf); font-weight: 700; margin-bottom: 0.5rem; }
h2 { font-family: var(--serif); font-weight: 640; font-size: clamp(1.55rem, 2.7vw, 2.3rem); line-height: 1.12; margin: 0 0 0.9rem; letter-spacing: -0.01em; text-wrap: balance; }
h2 .num { color: var(--accent); padding-right: 0.35em; }
h3.sub { font-family: var(--serif); font-size: 1.08rem; margin: 1.4rem 0 0.4rem; color: var(--ink-soft); }
p { margin: 0 0 1.05rem; max-width: 68ch; color: var(--ink-soft); }
p strong, li strong { color: var(--ink); }
.lede::first-letter { }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.fact-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; margin: 1.4rem 0; }
@media (max-width: 720px) { .fact-band { grid-template-columns: repeat(2, 1fr); } }
.fact-cell { background: var(--panel); padding: 0.9rem 1rem; }
.fact-cell b { display: block; font-family: var(--serif); font-size: 1.6rem; color: var(--accent-strong); font-variant-numeric: tabular-nums; line-height: 1.15; }
.fact-cell span { font-size: 0.73rem; color: var(--muted); }

figure { margin: 1.6rem 0; border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
figure img { width: 100%; height: auto; display: block; }
figcaption { font-size: 0.8rem; color: var(--muted); padding: 0.6rem 0.85rem; border-top: 1px solid var(--line-soft); }
figcaption a { color: var(--accent-strong); }

.callout { border: 1px solid var(--line); border-left: 4px solid var(--leaf); background: var(--panel); border-radius: 10px; padding: 0.85rem 1rem; margin: 1.2rem 0; font-size: 0.95rem; }
.callout b { color: var(--leaf); }

.law-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; margin: 1.3rem 0; }
@media (max-width: 800px) { .law-grid { grid-template-columns: 1fr; } }
.law-cell { border: 1px solid var(--line); border-radius: 12px; padding: 0.8rem 0.9rem; background: var(--bg-raised); }
.law-cell .step { font-family: var(--serif); font-weight: 700; color: var(--accent-strong); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; }
.law-cell b { display:block; margin: 0.2rem 0; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 1.2rem 0; }
.steps li { counter-increment: step; position: relative; padding-left: 2.3rem; margin-bottom: 0.75rem; max-width: 62ch; color: var(--ink-soft); }
.steps li::before { content: counter(step); position: absolute; left: 0; top: -0.18rem; width: 1.7rem; height: 1.7rem; border-radius: 50%; border: 1px solid var(--accent); color: var(--accent-strong); font-family: var(--serif); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; }

.svg-chart { width: 100%; height: auto; display: block; }
.chart-frame { border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--panel); padding: 0.8rem 0.9rem 0.6rem; margin: 1.2rem 0; }
.chart-cap { font-size: 0.8rem; color: var(--muted); margin-top: 0.35rem; }

table.data { border-collapse: collapse; font-size: 0.86rem; width: 100%; max-width: 100%; font-variant-numeric: tabular-nums; }
table.data th, table.data td { text-align: left; padding: 0.35rem 0.6rem; border-bottom: 1px solid var(--line-soft); }
table.data th { color: var(--muted); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--radius); }

.sources { font-size: 0.86rem; color: var(--muted); }
.sources li { margin-bottom: 0.35rem; }
.sources a { color: var(--accent-strong); }

details { border: 1px solid var(--line-soft); border-radius: 10px; padding: 0.5rem 0.8rem; margin: 0.6rem 0; background: var(--panel); font-size: 0.9rem; }
summary { cursor: pointer; font-weight: 600; color: var(--ink-soft); }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line-soft); margin-top: 3rem; padding: 1.6rem 0 calc(2rem + env(safe-area-inset-bottom)); font-size: 0.82rem; color: var(--muted); }
.footer .container { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: baseline; }
.footer a { color: var(--ink-soft); }
.footer a:hover { color: var(--accent); }
.footer-nav { display: flex; gap: 1rem; }

.page-grid { position: relative; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}