/* Inside People - warm paper, ink and teal. No external fonts or assets. */
:root {
  --paper: #f6f0e4;
  --paper-2: #efe6d5;
  --card: #fffbf3;
  --ink: #24201b;
  --ink-2: #4f473d;
  --ink-3: #6e6457;
  --line: #ddd0ba;
  --teal: #0d6466;
  --teal-2: #0a4f51;
  --teal-soft: #dcefeb;
  --amber-soft: #f6e6c4;
  --amber-ink: #6b4a0b;
  --good: #1f6b3a;
  --good-soft: #e1f1e4;
  --miss: #8a3b1e;
  --miss-soft: #f8e5da;
  --focus: #0b7d80;
  --radius: 14px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, Cambria, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.2; color: var(--ink); text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 5vw, 2.7rem); margin: 0.2em 0 0.35em; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.45rem, 3.6vw, 1.9rem); margin: 0.2em 0 0.5em; }
h3 { font-size: 1.2rem; margin: 1.2em 0 0.4em; }
p, li, dd { overflow-wrap: anywhere; }
a { color: var(--teal-2); text-underline-offset: 0.18em; }
a:hover { color: var(--teal); }
[hidden] { display: none !important; }

:focus { outline: none; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 6px; }
h1:focus-visible, h2:focus-visible { outline-offset: 6px; }

.skip-link {
  position: absolute; left: 0.75rem; top: -4rem; z-index: 50;
  background: var(--ink); color: #fff; padding: 0.7rem 1rem; border-radius: 8px;
}
.skip-link:focus { top: 0.75rem; }

/* ---------- top bar ---------- */
.topbar { background: var(--card); border-bottom: 1px solid var(--line); }
.topbar-inner {
  max-width: 64rem; margin: 0 auto; padding: 0.5rem 1rem;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.25rem 1rem;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem; min-height: 44px; padding: 0.25rem 0.4rem;
  background: none; border: 0; font: inherit; color: var(--ink); cursor: pointer; border-radius: 10px;
}
.brand-mark {
  display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--teal); color: #fff; font-family: var(--serif); font-size: 0.85rem; letter-spacing: 0.04em;
}
.brand-text { font-family: var(--serif); font-size: 1.15rem; font-weight: 600; }
.mainnav { display: flex; flex-wrap: wrap; gap: 0.15rem; }
.mainnav button {
  min-height: 44px; padding: 0.3rem 0.7rem; border: 0; border-radius: 10px; background: none;
  font: inherit; font-size: 0.95rem; color: var(--ink-2); cursor: pointer;
}
.mainnav button:hover { background: var(--paper-2); color: var(--ink); }
.mainnav button[aria-current="page"] { color: var(--teal-2); font-weight: 600; background: var(--teal-soft); }
.badge {
  display: inline-block; min-width: 1.4em; padding: 0 0.4em; margin-left: 0.2em; border-radius: 1em;
  background: var(--teal); color: #fff; font-size: 0.78rem; line-height: 1.4em; text-align: center;
}

.notices { max-width: 46rem; margin: 0 auto; padding: 0 1rem; }
.notice {
  margin-top: 0.9rem; padding: 0.8rem 1rem; border-radius: 12px; border: 1px solid var(--line);
  background: var(--card); display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; justify-content: space-between;
}
.notice p { margin: 0; flex: 1 1 18rem; }
.notice.warn { background: var(--amber-soft); border-color: #e2c98d; color: var(--amber-ink); }
.notice.ok { background: var(--good-soft); border-color: #b6dbbf; color: var(--good); }

/* ---------- layout ---------- */
.main { max-width: 46rem; margin: 0 auto; padding: 1.5rem 1rem 3rem; min-height: 60vh; }
.main.wide { max-width: 64rem; }
.footer { border-top: 1px solid var(--line); color: var(--ink-3); font-size: 0.85rem; text-align: center; padding: 1rem; }
.footer p { margin: 0 auto; max-width: 46rem; }

.eyebrow { font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--teal-2); font-weight: 600; margin: 0; }
.lede { font-family: var(--serif); font-size: 1.2rem; color: var(--ink-2); margin: 0 0 1.2rem; }
.muted { color: var(--ink-3); }
.small { font-size: 0.9rem; }

.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.2rem; margin: 1rem 0;
}
.panel > :first-child { margin-top: 0; }
.panel > :last-child { margin-bottom: 0; }
.panel.soft { background: var(--paper-2); }
.panel.teal { background: var(--teal-soft); border-color: #b9dcd5; }
.panel.amber { background: var(--amber-soft); border-color: #e2c98d; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 44px; min-width: 44px; padding: 0.55rem 1.15rem; border-radius: 999px;
  border: 1.5px solid var(--teal); background: var(--teal); color: #fff;
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; text-align: center;
}
.btn:hover { background: var(--teal-2); border-color: var(--teal-2); color: #fff; }
.btn.secondary { background: transparent; color: var(--teal-2); }
.btn.secondary:hover { background: var(--teal-soft); color: var(--teal-2); }
.btn.quiet { background: transparent; border-color: var(--line); color: var(--ink-2); font-weight: 500; }
.btn.quiet:hover { background: var(--paper-2); color: var(--ink); }
.btn.danger { background: var(--miss); border-color: var(--miss); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; margin: 1rem 0; }

/* ---------- home ---------- */
.hero { padding: 1.5rem 0 0.5rem; }
.hero .subtitle { font-family: var(--serif); font-style: italic; font-size: 1.3rem; color: var(--ink-2); margin: 0 0 1rem; }
.meter { height: 8px; background: var(--paper-2); border-radius: 99px; overflow: hidden; border: 1px solid var(--line); }
.meter > span { display: block; height: 100%; background: var(--teal); border-radius: 99px; }
.stat-row { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin: 0.6rem 0 0; color: var(--ink-2); }

/* ---------- course map ---------- */
.unit { margin: 1.2rem 0; }
.unit h2 { font-size: 1.35rem; margin: 0 0 0.25rem; }
.unit-summary { color: var(--ink-2); margin: 0 0 0.6rem; }
.item-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.4rem; }
.item-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.4rem 0.8rem;
  padding: 0.5rem 0.75rem; border: 1px solid var(--line); border-radius: 12px; background: var(--paper);
}
.item-row .item-title { flex: 1 1 14rem; min-width: 0; }
.item-row.checkpoint { background: var(--teal-soft); border-color: #b9dcd5; }
.chip { display: inline-block; font-size: 0.78rem; padding: 0.1rem 0.55rem; border-radius: 99px; border: 1px solid var(--line); color: var(--ink-2); background: var(--card); white-space: nowrap; }
.chip.completed { background: var(--good-soft); color: var(--good); border-color: #b6dbbf; }
.chip.in-progress { background: var(--amber-soft); color: var(--amber-ink); border-color: #e2c98d; }
.chip.locked { color: var(--ink-3); }
.toggle { display: flex; align-items: flex-start; gap: 0.6rem; min-height: 44px; cursor: pointer; }
.toggle input { width: 1.4rem; height: 1.4rem; margin: 0.15rem 0 0; accent-color: var(--teal); flex: none; }

/* ---------- lesson reading ---------- */
.step-head { margin-bottom: 0.6rem; }
.step-count { font-size: 0.85rem; color: var(--ink-3); margin: 0.2rem 0 0.5rem; }
.reading { font-family: var(--serif); font-size: 1.18rem; line-height: 1.7; color: var(--ink); }
.reading p { margin: 0 0 1em; max-width: 38em; }
.evidence-label { display: inline-block; font-family: var(--sans); font-size: 0.8rem; font-weight: 600; padding: 0.15rem 0.6rem; border-radius: 99px; background: var(--amber-soft); color: var(--amber-ink); }
.evidence-label.established { background: var(--good-soft); color: var(--good); }
.evidence-label.simplified { background: var(--teal-soft); color: var(--teal-2); }
dl.terms { margin: 0; }
dl.terms dt { font-weight: 700; margin-top: 0.6rem; }
dl.terms dd { margin: 0.1rem 0 0; color: var(--ink-2); }
details.deeper { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); margin: 1rem 0; }
details.deeper > summary {
  cursor: pointer; padding: 0.8rem 1.1rem; min-height: 44px; font-weight: 600; color: var(--teal-2);
  list-style-position: inside; border-radius: var(--radius);
}
details.deeper[open] > summary { border-bottom: 1px solid var(--line); border-radius: var(--radius) var(--radius) 0 0; }
details.deeper .deeper-body { padding: 0.6rem 1.1rem 1rem; }
.myth { margin: 0.6rem 0 0; }
.myth strong { display: block; font-family: var(--sans); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-3); }
.sources-list { margin: 0.3rem 0 0; padding-left: 1.2rem; }
.sources-list li { margin: 0.3rem 0; }

.stepnav {
  display: flex; justify-content: space-between; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  margin-top: 1.6rem; padding-top: 1rem; border-top: 1px solid var(--line);
}
.stepnav .hint { flex: 1 1 100%; margin: 0; font-size: 0.92rem; color: var(--ink-3); order: 3; }

/* ---------- questions ---------- */
.q-kind { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--teal-2); margin: 0; }
.q-prompt { font-family: var(--serif); font-size: 1.28rem; line-height: 1.45; margin: 0.3rem 0 1rem; font-weight: 600; }
fieldset { border: 0; margin: 0 0 1rem; padding: 0; min-width: 0; }
legend { font-weight: 600; margin-bottom: 0.5rem; padding: 0; }
.choices { display: grid; gap: 0.55rem; }
.choice {
  display: flex; gap: 0.75rem; align-items: flex-start; padding: 0.75rem 0.9rem; min-height: 44px;
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--card); cursor: pointer;
}
.choice:hover { border-color: var(--teal); }
.choice input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.choice .letter {
  flex: none; display: inline-grid; place-items: center; width: 1.9rem; height: 1.9rem; border-radius: 50%;
  border: 1.5px solid var(--ink-3); font-weight: 700; font-size: 0.9rem; color: var(--ink-2);
}
.choice .choice-text { padding-top: 0.15rem; }
.choice:has(input:checked) { border-color: var(--teal); background: var(--teal-soft); }
.choice:has(input:checked) .letter { background: var(--teal); border-color: var(--teal); color: #fff; }
.choice:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }
.choice.locked { cursor: default; }
.choice.locked:hover { border-color: var(--line); }
.choice.locked.is-correct { border-color: var(--good); background: var(--good-soft); }
.choice.locked.is-correct .letter { background: var(--good); border-color: var(--good); color: #fff; }
.choice.locked.is-wrong { border-color: var(--miss); background: var(--miss-soft); }
.choice.locked.is-wrong .letter { background: var(--miss); border-color: var(--miss); color: #fff; }
.choice .tag { display: block; font-size: 0.8rem; font-weight: 700; margin-top: 0.2rem; }
.choice.locked.is-correct .tag { color: var(--good); }
.choice.locked.is-wrong .tag { color: var(--miss); }

.confidence { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.conf {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0.4rem 0.95rem; cursor: pointer;
  border: 1.5px solid var(--line); border-radius: 999px; background: var(--card);
}
.conf input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.conf:has(input:checked) { border-color: var(--teal); background: var(--teal-soft); color: var(--teal-2); font-weight: 600; }
.conf:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }
.conf.locked { cursor: default; }

.feedback { margin-top: 1.2rem; border-radius: var(--radius); border: 1.5px solid var(--line); background: var(--card); padding: 1rem 1.15rem; }
.feedback.good { border-color: #9fcfaa; }
.feedback.miss { border-color: #e3b49c; }
.feedback h3 { margin-top: 0; }
.verdict { font-family: var(--serif); font-size: 1.3rem; font-weight: 700; margin: 0 0 0.4rem; }
.feedback.good .verdict { color: var(--good); }
.feedback.miss .verdict { color: var(--miss); }
.why-list { list-style: none; padding: 0; margin: 0.5rem 0; display: grid; gap: 0.6rem; }
.why-list li { padding: 0.6rem 0.8rem; border-radius: 10px; background: var(--paper); border-left: 4px solid var(--line); }
.why-list li.best { border-left-color: var(--good); }
.why-list li.picked:not(.best) { border-left-color: var(--miss); }
.why-list .who { display: block; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-3); }

/* ---------- notes ---------- */
label.field { display: block; font-weight: 600; margin: 1rem 0 0.35rem; }
textarea {
  width: 100%; min-height: 9rem; padding: 0.8rem; border-radius: 12px; border: 1.5px solid var(--line);
  background: var(--card); color: var(--ink); font: inherit; font-size: 1.02rem; line-height: 1.55; resize: vertical;
}
textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-color: var(--teal); }
.save-status { font-size: 0.88rem; color: var(--ink-3); min-height: 1.4em; margin: 0.3rem 0 0; }

/* ---------- report ---------- */
table.conf-table { width: 100%; border-collapse: collapse; margin: 0.6rem 0; font-size: 0.98rem; }
.conf-table th, .conf-table td { padding: 0.5rem 0.4rem; border-bottom: 1px solid var(--line); text-align: left; }
.conf-table th:not(:first-child), .conf-table td:not(:first-child) { text-align: right; }
.big-number { font-family: var(--serif); font-size: 2rem; font-weight: 700; color: var(--teal-2); line-height: 1; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr)); gap: 0.7rem; margin: 0.8rem 0; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 0.8rem; }
.stat .label { font-size: 0.85rem; color: var(--ink-3); margin-top: 0.3rem; }
.final { border: 2px solid var(--teal); background: linear-gradient(180deg, var(--teal-soft), var(--card)); }
input[type="file"] { max-width: 100%; font: inherit; min-height: 44px; }
.error-list { margin: 0.4rem 0 0; padding-left: 1.2rem; }

@media (max-width: 480px) {
  .main { padding: 1rem 0.85rem 2.5rem; }
  .reading { font-size: 1.1rem; }
  .q-prompt { font-size: 1.17rem; }
  .brand-text { font-size: 1.05rem; }
  .mainnav button { padding: 0.3rem 0.5rem; font-size: 0.9rem; }
  .stepnav .btn { flex: 1 1 8rem; }
}

@media (prefers-reduced-motion: no-preference) {
  .btn, .choice, .conf, .mainnav button { transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}
@media print {
  .topbar, .footer, .stepnav, .notices { display: none; }
  body { background: #fff; }
}

/* question context (scenario beside checkpoint questions, lesson reminder in review) */
.context { margin: 0 0 1.1rem; }
.context h3 { margin-top: 0; }
.small-reading { font-size: 1.05rem; line-height: 1.6; }
.small-reading p:last-child { margin-bottom: 0; }

/* ---------- phone: safe areas and offline status ---------- */
.topbar { padding-top: env(safe-area-inset-top, 0px); }
.topbar-inner { padding-left: max(1rem, env(safe-area-inset-left, 0px)); padding-right: max(1rem, env(safe-area-inset-right, 0px)); }
.main { padding-left: max(1rem, env(safe-area-inset-left, 0px)); padding-right: max(1rem, env(safe-area-inset-right, 0px)); }
.notices { padding-left: max(1rem, env(safe-area-inset-left, 0px)); padding-right: max(1rem, env(safe-area-inset-right, 0px)); }
.footer { padding-bottom: max(1rem, env(safe-area-inset-bottom, 0px)); padding-left: max(1rem, env(safe-area-inset-left, 0px)); padding-right: max(1rem, env(safe-area-inset-right, 0px)); }
@media (max-width: 480px) {
  .main { padding-left: max(0.85rem, env(safe-area-inset-left, 0px)); padding-right: max(0.85rem, env(safe-area-inset-right, 0px)); }
}
.offline-status { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.35rem 0.6rem; max-width: 46rem; margin: 0.6rem auto 0; font-size: 0.85rem; color: var(--ink-2); }
.offline-status:empty { display: none; }
.offline-dot { width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--ink-3); flex: none; }
.offline-status[data-state="ready"] .offline-dot, .offline-status[data-state="file"] .offline-dot { background: var(--good); }
.offline-status[data-state="preparing"] .offline-dot, .offline-status[data-state="update"] .offline-dot { background: #c99a3c; }
.offline-status[data-state="failed"] .offline-dot, .offline-status[data-state="incomplete"] .offline-dot { background: var(--miss); }
.offline-action { padding: 0.3rem 0.9rem; font-size: 0.85rem; }