/* Microplastic Exposure Audit — calm, evidence-honest, mobile-first. */

:root {
  --ground: #f2f6f4;
  --surface: #ffffff;
  --surface-2: #e6eeea;
  --ink: #15211c;
  --ink-2: #4f605a;
  --ink-3: #75847e;
  --line: #d3ddd8;
  --accent: #0d6b5c;
  --accent-ink: #ffffff;
  --accent-soft: #d6ebe4;
  --amber: #7d5f28;
  --amber-soft: #f1e7d0;
  --shadow: 0 1px 2px rgba(21, 33, 28, 0.06), 0 8px 24px rgba(21, 33, 28, 0.06);
  --radius: 12px;
  --font-display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0f1614;
    --surface: #182220;
    --surface-2: #202d29;
    --ink: #e6ede9;
    --ink-2: #aab8b1;
    --ink-3: #83928b;
    --line: #2c3b36;
    --accent: #4fc0a7;
    --accent-ink: #0b1613;
    --accent-soft: #163a32;
    --amber: #d8b46b;
    --amber-soft: #3a2f16;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #0f1614;
  --surface: #182220;
  --surface-2: #202d29;
  --ink: #e6ede9;
  --ink-2: #aab8b1;
  --ink-3: #83928b;
  --line: #2c3b36;
  --accent: #4fc0a7;
  --accent-ink: #0b1613;
  --accent-soft: #163a32;
  --amber: #d8b46b;
  --amber-soft: #3a2f16;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.5;
  padding-inline: 20px;
  padding-block: 0 48px;
  min-height: 100dvh;
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.12; letter-spacing: -0.01em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(1.75rem, 2.4vw + 1.2rem, 2.375rem); }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }
p { margin: 0; }
a { color: var(--accent); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 16px; }

.wrap { max-width: 34rem; margin-inline: auto; }
.screen { display: flex; flex-direction: column; gap: 20px; padding-top: 28px; animation: enter 220ms ease-out both; }
@keyframes enter { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .screen { animation: none; } * { transition: none !important; } }

.eyebrow { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
.hint, .fine, .small { color: var(--ink-2); font-size: 0.9375rem; }
.small { font-size: 0.875rem; }
.muted { color: var(--ink-3); }
.tnum { font-variant-numeric: tabular-nums; }

/* Progress */
.progress { position: fixed; inset: 0 0 auto 0; height: 4px; background: var(--surface-2); z-index: 5; }
.progress-bar { height: 100%; width: 0; background: var(--accent); transition: width 240ms ease; }

/* Top bar */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 18px; }
.brand { font-family: var(--font-display); font-weight: 700; font-size: 0.9375rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand small { display: block; font-family: var(--font-body); font-weight: 500; font-size: 0.75rem; color: var(--ink-3); letter-spacing: 0.04em; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 56px; padding: 12px 22px; border-radius: var(--radius); border: 1.5px solid transparent; font-weight: 600; font-size: 1.0625rem; text-decoration: none; cursor: pointer; width: 100%; transition: background-color 120ms, border-color 120ms, transform 80ms; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--ink-3); }
.btn-inline { width: auto; min-height: 44px; padding: 8px 16px; font-size: 0.9375rem; }
.link { background: none; border: 0; padding: 8px 0; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font-size: 0.9375rem; min-height: 44px; display: inline-flex; align-items: center; width: auto; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

/* Landing */
.hero { display: flex; flex-direction: column; gap: 16px; padding-top: 24px; }
.hero h1 { font-size: clamp(2rem, 3vw + 1.3rem, 2.75rem); }
.hero .sub { font-size: 1.125rem; color: var(--ink-2); max-width: 32rem; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 16px; list-style: none; padding: 0; margin: 0; color: var(--ink-2); font-size: 0.9rem; }
.trust li::before { content: "·"; margin-right: 8px; color: var(--accent); font-weight: 700; }
.trust li:first-child::before { content: ""; margin: 0; }

/* Answer options */
.options { display: flex; flex-direction: column; gap: 10px; }
.opt { display: flex; align-items: center; gap: 14px; min-height: 60px; width: 100%; text-align: left; padding: 14px 16px; border-radius: var(--radius); background: var(--surface); border: 1.5px solid var(--line); cursor: pointer; transition: border-color 120ms, background-color 120ms; font-size: 1.0625rem; line-height: 1.3; }
.opt:hover { border-color: var(--ink-3); }
.opt .dot { flex: 0 0 auto; width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--ink-3); position: relative; transition: border-color 120ms; }
.opt[aria-pressed="true"], .opt.is-selected { border-color: var(--accent); background: var(--accent-soft); }
.opt[aria-pressed="true"] .dot, .opt.is-selected .dot { border-color: var(--accent); }
.opt[aria-pressed="true"] .dot::after, .opt.is-selected .dot::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--accent); }

/* Consent panel */
.consent { display: flex; flex-direction: column; gap: 14px; padding: 18px; border-radius: var(--radius); background: var(--surface); border: 1.5px solid var(--line); box-shadow: var(--shadow); }
.check { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; font-weight: 600; min-height: 44px; }
.check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--accent); flex: 0 0 auto; }

/* Score hero + scale */
.score-block { display: flex; flex-direction: column; gap: 6px; }
.score-hero { display: flex; align-items: baseline; gap: 6px; font-family: var(--font-display); }
.score-num { font-size: clamp(5.5rem, 22vw, 7.5rem); font-weight: 700; line-height: 0.9; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.score-den { font-size: 1.5rem; font-weight: 500; color: var(--ink-2); }
.score-label { color: var(--ink-2); font-size: 0.9375rem; }
.scale { position: relative; height: 56px; margin-top: 10px; }
.scale .track { position: absolute; left: 0; right: 0; top: 24px; height: 8px; border-radius: 4px; background: var(--surface-2); }
.scale .fill { position: absolute; left: 0; top: 24px; height: 8px; border-radius: 4px; background: var(--accent); }
.scale .marker { position: absolute; top: 20px; width: 16px; height: 16px; border-radius: 50%; background: var(--surface); border: 3px solid var(--ink); transform: translateX(-50%); }
.scale .typical { position: absolute; top: 12px; width: 2px; height: 32px; background: var(--ink-3); transform: translateX(-50%); }
.scale .typical-label { position: absolute; top: -6px; transform: translateX(-50%); font-size: 0.75rem; color: var(--ink-3); white-space: nowrap; }
.scale .end { position: absolute; top: 38px; font-size: 0.75rem; color: var(--ink-3); }
.scale .end.right { right: 0; }
.pct { font-family: var(--font-display); font-size: 1.25rem; font-weight: 500; }
.frame { padding: 12px 14px; border-left: 3px solid var(--line); color: var(--ink-2); font-size: 0.9375rem; }

/* Callout for #1 source */
.top1 { display: flex; flex-direction: column; gap: 6px; padding: 18px; border-radius: var(--radius); background: var(--surface); border: 1.5px solid var(--line); }
.top1 h2 { font-size: 1.5rem; }

/* Email form */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: 0.9375rem; }
.field input[type="email"] { font: inherit; font-size: 1.0625rem; min-height: 56px; padding: 12px 16px; border-radius: var(--radius); border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); width: 100%; }
.field input[type="email"]:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
.error { color: #a33a2a; font-size: 0.9rem; }
:root[data-theme="dark"] .error { color: #f0a08e; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .error { color: #f0a08e; } }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.bullets { margin: 0; padding-left: 1.2em; color: var(--ink-2); display: flex; flex-direction: column; gap: 4px; }

/* Results */
.status { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: var(--surface-2); font-size: 0.875rem; color: var(--ink-2); width: fit-content; }
.status.is-ok { background: var(--accent-soft); color: var(--accent); }
.lever { display: flex; flex-direction: column; gap: 12px; padding: 20px; border-radius: 16px; background: var(--surface); border: 1.5px solid var(--accent); box-shadow: var(--shadow); }
.lever h2 { font-size: 1.5rem; }
.lever .region { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; color: var(--ink-2); }
.lever select { font: inherit; font-size: 0.875rem; padding: 6px 10px; border-radius: 8px; border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); min-height: 36px; }
.ranked { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; counter-reset: rank; }
.rank-item { display: grid; grid-template-columns: 44px 1fr; gap: 6px 12px; padding: 18px 18px 18px 14px; border-radius: var(--radius); background: var(--surface); border: 1.5px solid var(--line); }
.rank-num { grid-row: 1 / span 3; font-family: var(--font-display); font-size: 2.25rem; font-weight: 700; line-height: 1; color: var(--accent); font-variant-numeric: tabular-nums; padding-top: 2px; }
.rank-item h3 { font-size: 1.25rem; }
.why { color: var(--ink-2); font-size: 0.9375rem; }
.why a { color: var(--ink-2); font-size: 0.85em; margin-left: 4px; white-space: nowrap; }
.fix { margin-top: 8px; padding: 12px 14px; border-radius: 10px; background: var(--ground); display: flex; flex-direction: column; gap: 6px; }
.fix .row { justify-content: space-between; }
.fix strong { font-size: 1rem; }
.fix .detail { font-size: 0.9375rem; color: var(--ink-2); }
.fix .cta { margin-top: 6px; }
.label { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.label-established { background: var(--accent-soft); color: var(--accent); }
.label-likely { background: var(--amber-soft); color: var(--amber); }
.label-emerging { background: var(--surface-2); color: var(--ink-2); }
.cost { font-size: 0.875rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.note { padding: 14px 16px; border-radius: var(--radius); background: var(--accent-soft); color: var(--ink); font-size: 0.9375rem; }

/* Share */
.share { display: flex; flex-direction: column; gap: 12px; }
.card-preview { border-radius: 12px; overflow: hidden; border: 1.5px solid var(--line); box-shadow: var(--shadow); background: #f2f6f4; }
.card-preview svg { display: block; width: 100%; height: auto; }

footer.foot { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.875rem; color: var(--ink-2); }
footer.foot a { color: var(--ink-2); }

/* How-we-score page */
.doc { display: flex; flex-direction: column; gap: 28px; padding-top: 24px; max-width: 40rem; }
.doc section { display: flex; flex-direction: column; gap: 10px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 0.9375rem; }
.doc th, .doc td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }
.doc .tablewrap { overflow-x: auto; }
.doc code { font-size: 0.9em; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
.cite { font-size: 0.9375rem; color: var(--ink-2); }
.cite strong { color: var(--ink); }
.q { padding: 16px; border-radius: var(--radius); background: var(--surface); border: 1.5px solid var(--line); display: flex; flex-direction: column; gap: 8px; }
.q ul { margin: 0; padding-left: 1.2em; }

@media (min-width: 640px) {
  body { font-size: 17px; }
  .screen { padding-top: 40px; }
}

/* Utilities added with the app */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.form { display: flex; flex-direction: column; gap: 14px; }
.opt:disabled { cursor: default; }

/* Story format (v1.1) */
.reveal { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: var(--radius); background: var(--accent-soft); color: var(--ink); font-size: 0.9375rem; line-height: 1.45; }
.reveal .eyebrow { color: var(--accent); }
.story { font-size: 1.0625rem; line-height: 1.5; color: var(--ink); }
.story::before { content: ""; display: block; width: 28px; height: 3px; background: var(--accent); margin-bottom: 10px; border-radius: 2px; }
.disclosure { font-size: 0.85rem; color: var(--ink-2); padding: 10px 12px; border: 1px dashed var(--line); border-radius: 10px; }
.check.check-soft { font-weight: 500; font-size: 0.9375rem; line-height: 1.45; color: var(--ink-2); }
.check.check-soft input { margin-top: 3px; }

/* Segment weight override, published on the method page */
.override { margin: 10px 0 0; padding: 12px 14px; border-radius: 10px; background: var(--amber-soft); color: var(--ink); display: flex; flex-direction: column; gap: 6px; }
.override ul { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 3px; }