/* The Apprentice Path — styles. Original design; system fonts only. */
:root {
  --sky: #B8DCEB;
  --sky-soft: #DCEEF5;
  --clay: #B64D35;
  --clay-dark: #8E3824;
  --clay-soft: #E9B3A3;
  --parchment: #FFF9EF;
  --paper: #FFFDF8;
  --navy: #1C3346;
  --navy-2: #2C4A63;
  --mustard: #E8C468;
  --sage: #B4CDA8;
  --ink: #1C3346;
  --muted: #4A5B6A;          /* 7.0:1 on parchment */
  --line: rgba(28, 51, 70, .14);
  --shadow: 0 1px 0 rgba(28,51,70,.08), 0 10px 24px -14px rgba(28,51,70,.35);
  --radius: 14px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --measure: 68ch;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background-color: var(--parchment);
  background-image: radial-gradient(rgba(28,51,70,.07) 1px, transparent 1.2px);
  background-size: 22px 22px;
  color: var(--ink);
  font: 1.0625rem/1.65 var(--serif);
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--clay-dark); text-underline-offset: .18em; text-decoration-thickness: .08em; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--navy); outline-offset: 3px; border-radius: 4px; }
.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; }
code { font-family: var(--mono); font-size: .88em; background: var(--sky-soft); padding: .05em .3em; border-radius: 4px; word-break: break-word; }

/* no-js / js toggles */
.no-js .js-only, .no-js .js-only-inline { display: none !important; }
[hidden] { display: none !important; }

.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--navy); color: var(--parchment); padding: .7rem 1rem; border-radius: 10px; font-family: var(--sans); font-weight: 600; }
.skip:focus { top: 12px; color: var(--parchment); }

/* ---------- top bar ---------- */
.topbar { position: sticky; top: 0; z-index: 50; background: rgba(255,249,239,.94); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.topnav { max-width: 1200px; margin: 0 auto; padding: .55rem 16px; display: flex; flex-wrap: wrap; align-items: center; gap: .4rem 1rem; font-family: var(--sans); font-size: .95rem; }
.topnav a { text-decoration: none; color: var(--navy); }
.topnav .back { font-weight: 700; padding: .45rem .7rem; border: 2px solid var(--navy); border-radius: 999px; min-height: 44px; display: inline-flex; align-items: center; }
.topnav .back:hover { background: var(--navy); color: var(--parchment); }
.brand { min-height: 44px; min-width: 44px; display: inline-flex; gap: .45rem; align-items: center; font-weight: 700; font-family: var(--serif); font-size: 1.05rem; }
.navlinks { list-style: none; display: flex; flex-wrap: wrap; gap: .1rem .2rem; margin: 0 0 0 auto; padding: 0; }
.navlinks a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 .55rem; border-radius: 8px; }
.navlinks a:hover { background: var(--sky-soft); }
.navlinks .mail { color: var(--clay-dark); font-weight: 700; }
@media (max-width: 700px) {
  .brand span { display: none; }
  .topnav { flex-wrap: nowrap; gap: .5rem; }
  .topnav .back { font-size: .9rem; padding: .4rem .65rem; }
  .navlinks { margin-left: auto; flex-wrap: nowrap; }
  .navlinks li:not(:last-child) { display: none; }
  .navlinks a { padding: 0 .35rem; font-size: .9rem; white-space: nowrap; }
}

main { display: block; }
main:focus { outline: none; }
section, article { scroll-margin-top: 120px; }
.section-head { max-width: var(--measure); }
.kicker { font-family: var(--sans); text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 700; color: var(--clay-dark); margin: 0 0 .3rem; }
h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.15; color: var(--navy); }
h2 { font-size: clamp(1.7rem, 1.2rem + 2vw, 2.5rem); margin: 0 0 .6rem; letter-spacing: -.01em; }
h3 { font-size: 1.45rem; margin: 0; }
h4 { font-family: var(--sans); font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; margin: 0 0 .6rem; color: var(--navy-2); display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }

/* shared section spacing */
.hero, .toc, .path-section, .apprenticeships, .essay, .misconceptions, .open-q, .worksheet, .related, .sources, .return {
  max-width: 1200px; margin: 0 auto; padding: 3rem 16px;
}

/* ---------- buttons ---------- */
.btn { font: 600 1rem/1.2 var(--sans); display: inline-flex; align-items: center; justify-content: center; gap: .4rem; min-height: 44px; padding: .6rem 1.1rem; border-radius: 12px; border: 2px solid var(--navy); background: var(--paper); color: var(--navy); cursor: pointer; text-decoration: none; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; box-shadow: 0 3px 0 var(--navy); }
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 0 var(--navy); color: var(--navy); }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--navy); }
.btn-primary { background: var(--clay); color: #fff; border-color: var(--navy); }
.btn-primary:hover { background: var(--clay-dark); color: #fff; }
.btn-ghost { background: transparent; }
.btn-small { min-height: 44px; min-width: 44px; padding: .35rem .75rem; font-size: .92rem; }
.btn-big { font-size: 1.1rem; padding: .85rem 1.4rem; }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } .btn:hover, .btn:active { transform: none; } }

/* ---------- tags ---------- */
.tag { display: inline-block; font: 700 .7rem/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; padding: .32rem .5rem; border-radius: 6px; border: 1.5px solid currentColor; vertical-align: .15em; white-space: nowrap; background: var(--paper); }
.t-evidence { color: #1E5A3A; }
.t-framework { color: var(--navy); }
.t-interp { color: #6A4A00; }
.t-hyp { color: #6B2F7A; }
.t-illus { color: #1F5370; }
.t-fiction { color: var(--clay-dark); border-style: dashed; }
.tags { margin: .35rem 0 1rem; display: flex; gap: .4rem; flex-wrap: wrap; }

/* ---------- hero ---------- */
.hero { display: grid; gap: 2rem; align-items: center; padding-top: 2rem; }
@media (min-width: 980px) { .hero { grid-template-columns: 1fr 1.08fr; padding-top: 3.5rem; } }
.crumbs { font-family: var(--sans); font-size: .9rem; color: var(--muted); margin: 0 0 1rem; }
.crumbs a { color: var(--muted); }
.hero h1 { font-size: clamp(2.3rem, 1.4rem + 4.2vw, 4.1rem); margin: 0 0 1rem; letter-spacing: -.02em; }
.hero h1 em { font-style: italic; color: var(--clay); position: relative; white-space: nowrap; }
.hero h1 em::after { content: ""; position: absolute; left: 0; right: 0; bottom: .02em; height: .14em; background: var(--sky); z-index: -1; border-radius: 4px; }
.lede { font-size: 1.2rem; max-width: 36rem; margin: 0 0 1.5rem; }
.cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 1.6rem; }
.isnot { background: var(--paper); border: 1.5px dashed var(--navy-2); border-radius: var(--radius); padding: .9rem 1.1rem; font-family: var(--sans); font-size: .95rem; max-width: 38rem; }
.isnot p { margin: .25rem 0; }

.map-card { margin: 0; background: var(--paper); border-radius: 22px; padding: 10px; box-shadow: var(--shadow); border: 1px solid var(--line); transform: rotate(.6deg); }
@media (prefers-reduced-motion: reduce) { .map-card { transform: none; } }
.map { display: block; width: 100%; height: auto; }
.map .maplbl { font: 600 14px var(--sans); fill: var(--navy); }
.map .num { font: 800 16px var(--sans); fill: var(--navy); }
.map .station { cursor: pointer; }
.map .station .nb { stroke: var(--navy); stroke-width: 1.5; transition: transform .2s; }
.map .station:hover .nb, .map .station:focus .nb { stroke-width: 3.5; }
.map .station:focus { outline: none; }
.map .station:focus-visible .nb { stroke: var(--clay); stroke-width: 4; }
.map .tick { fill: none; stroke: #1E5A3A; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; opacity: 0; }
.map .station.done .tick { opacity: 1; }
.map .station.off { opacity: .35; }
.map .station.next .nb { stroke: var(--clay); stroke-width: 3.5; }
.map-status { font-family: var(--sans); font-size: .93rem; padding: .5rem .5rem .2rem; color: var(--muted); }
@media (max-width: 560px) { .map .maplbl { display: none; } }
.bob { animation: bob 2.4s ease-in-out infinite; transform-origin: center; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
@media (prefers-reduced-motion: reduce) { .bob { animation: none; } }

/* ---------- toc ---------- */
.toc { padding-top: 1rem; padding-bottom: 1rem; }
.toc > * { max-width: 760px; }
.toc { background: var(--navy); color: var(--parchment); border-radius: 22px; max-width: calc(1200px - 32px); margin: 1rem auto; padding: 1.6rem 1.6rem; }
@media (max-width: 1232px) { .toc { margin-left: 16px; margin-right: 16px; } }
.toc h2 { color: var(--parchment); font-size: 1.3rem; }
.toc ol { margin: 0; padding-left: 1.3rem; columns: 2 17rem; column-gap: 2rem; font-family: var(--sans); }
.toc ol ol { columns: 1; font-size: .93rem; margin: .2rem 0 .3rem; }
.toc li { break-inside: avoid; padding: .12rem 0; }
.toc a { color: var(--parchment); text-decoration-color: rgba(184,220,235,.6); }
.toc a:hover { color: var(--sky); }
.toc :focus-visible { outline-color: var(--sky); }
.legend-note { font-family: var(--sans); font-size: .85rem; margin: 1rem 0 0; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.toc .tag { background: var(--parchment); }

/* ---------- path chooser ---------- */
.chooser-wrap { display: grid; gap: 1.5rem; margin-top: 1.2rem; }
@media (min-width: 900px) { .chooser-wrap { grid-template-columns: 1.1fr 1fr; } }
.chooser { border: 0; padding: 0; margin: 0; display: grid; gap: .7rem; }
.chooser legend { font: 700 1rem var(--sans); margin-bottom: .6rem; padding: 0; }
.choice { display: flex; gap: .8rem; align-items: flex-start; background: var(--paper); border: 2px solid var(--line); border-radius: var(--radius); padding: .85rem 1rem; cursor: pointer; font-family: var(--sans); transition: border-color .15s, background .15s; }
.choice:hover { border-color: var(--navy-2); }
.choice input { width: 24px; height: 24px; margin-top: .1rem; accent-color: var(--clay); flex: none; }
.choice span { display: grid; gap: .1rem; }
.choice small { color: var(--muted); font-size: .88rem; }
.choice:has(input:checked) { border-color: var(--clay); background: #FFF2EA; box-shadow: inset 6px 0 0 var(--clay); }
.choice:has(input:focus-visible) { outline: 3px solid var(--navy); outline-offset: 3px; }
.progress-card { background: var(--sky-soft); border-radius: var(--radius); padding: 1.1rem 1.2rem; border: 1.5px solid var(--sky); font-family: var(--sans); }
.progress-card h3 { font-size: 1.15rem; margin-bottom: .6rem; }
.path-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; counter-reset: p; }
.path-list li { display: flex; align-items: center; gap: .55rem; }
.path-list a { color: var(--navy); font-weight: 600; }
.path-list .dot { width: 24px; height: 24px; flex: none; border-radius: 50%; border: 2px solid var(--navy); display: grid; place-items: center; font-size: .75rem; font-weight: 800; background: var(--paper); }
.path-list .is-done .dot { background: var(--navy); color: var(--parchment); }
.path-list .state { font-size: .82rem; color: var(--muted); }
.progress-text { font-weight: 600; margin: .9rem 0 .5rem; }
.storage-note { font-size: .86rem; color: var(--muted); margin: .6rem 0 0; }
.storage-note .btn { margin-top: .6rem; display: flex; }
.noscript-note { background: var(--paper); border: 2px dashed var(--clay); border-radius: var(--radius); padding: 1rem; font-family: var(--sans); }

/* ---------- notebooks ---------- */
.apprenticeships .section-head { margin-bottom: 1.8rem; }
.apprenticeships { max-width: 920px; }
.notebook { --cover: var(--sky); --cover-ink: var(--navy); position: relative; background: var(--paper); border-radius: 18px; margin: 0 0 2.4rem; box-shadow: var(--shadow); border: 1px solid var(--line); overflow: hidden; }
.notebook::before { /* elastic band */ content: ""; position: absolute; right: 22px; top: 0; bottom: 0; width: 8px; background: var(--cover); opacity: .9; border-left: 1px solid rgba(28,51,70,.15); border-right: 1px solid rgba(28,51,70,.15); }
.nb-sky { --cover: var(--sky); }
.nb-clay { --cover: var(--clay-soft); }
.nb-mustard { --cover: var(--mustard); }
.nb-navy { --cover: var(--navy); --cover-ink: var(--parchment); }
.nb-sage { --cover: var(--sage); }
.nb-head { position: relative; display: flex; gap: 1rem; align-items: center; padding: 1.1rem 3rem 1.1rem 1.2rem; background: var(--cover); color: var(--cover-ink); border-bottom: 3px dashed rgba(28,51,70,.25); }
.nb-head h3, .nb-head .nb-meta { color: var(--cover-ink); }
.nb-num { flex: none; width: 52px; height: 52px; border-radius: 12px; background: var(--paper); color: var(--navy); display: grid; place-items: center; font: 800 1.5rem var(--sans); border: 2px solid var(--navy); transform: rotate(-4deg); }
.nb-meta { margin: .15rem 0 0; font-family: var(--sans); font-size: .9rem; }
.onpath-flag { margin-left: auto; font: 700 .75rem var(--sans); text-transform: uppercase; letter-spacing: .1em; background: var(--paper); color: var(--clay-dark); border: 2px solid var(--clay); border-radius: 999px; padding: .35rem .7rem; white-space: nowrap; }
.nb-body { display: grid; gap: 0; padding: .4rem 2.1rem 1.2rem 1.1rem; }
@media (max-width: 759px) { .notebook::before { right: 10px; width: 6px; } }
@media (min-width: 760px) { .nb-body { padding: .6rem 3.2rem 1.4rem 1.8rem; } }
.page { padding: 1.1rem 0 .6rem; border-bottom: 1px solid var(--line); min-width: 0; }
.page:last-of-type { border-bottom: 0; }
.page p, .page li { max-width: var(--measure); }
.page .why { color: var(--muted); font-style: italic; }
.lined { position: relative; padding-left: 1.1rem; margin-left: -.2rem; border-left: 3px double var(--clay-soft); background: linear-gradient(to right, rgba(184,220,235,.18), transparent 40%); }
.steps { padding-left: 0; list-style: none; counter-reset: s; margin: 0 0 .8rem; }
.steps li { position: relative; padding-left: 2.2rem; margin: .5rem 0; counter-increment: s; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: .1rem; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--navy); color: var(--parchment); font: 700 .8rem/1.6rem var(--sans); text-align: center; }
.steps b { font-family: var(--sans); font-size: .78rem; background: var(--sky); padding: .1rem .4rem; border-radius: 5px; margin-right: .3rem; white-space: nowrap; }
.checks { list-style: none; padding: .7rem .9rem; margin: 0; background: var(--parchment); border: 1.5px dashed var(--navy-2); border-radius: 10px; font-family: var(--sans); font-size: .95rem; }
.checks li { padding-left: 1.6rem; position: relative; margin: .25rem 0; }
.checks li::before { content: ""; position: absolute; left: 0; top: .3rem; width: 1rem; height: 1rem; border: 2px solid var(--navy); border-radius: 3px; }
.ladder { padding-left: 0; list-style: none; margin: 0 0 .8rem; }
.ladder li { margin: 0 0 .55rem; padding: .55rem .8rem; background: var(--parchment); border-left: 4px solid var(--sky); border-radius: 0 10px 10px 0; }
.ladder li:nth-child(2) { margin-left: .6rem; } .ladder li:nth-child(3) { margin-left: 1.2rem; border-color: var(--mustard); } .ladder li:nth-child(4) { margin-left: 1.8rem; border-color: var(--clay); }
.rung { display: block; font: 700 .72rem var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--navy-2); }
.ladder em { color: var(--muted); }
.compare { display: grid; gap: .8rem; margin: 0 0 .8rem; }
@media (min-width: 640px) { .compare { grid-template-columns: 1fr 1fr; } }
.compare > * { margin: 0; padding: .8rem 1rem; border-radius: 12px; font-size: .98rem; }
.compare p { margin: .2rem 0; }
.compare .weak { background: #F3EEE6; border: 1.5px dashed #8A8A8A; }
.compare .strong { background: #EAF4F8; border: 1.5px solid var(--navy-2); }
.compare .label { font: 700 .72rem var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--navy-2); }
.reflect { }
.cant { background: #FFF2EA; border-left: 4px solid var(--clay); padding: .6rem .8rem; border-radius: 0 10px 10px 0; }
.safety { background: #FFF6D9; border: 2px solid #8C6A00; border-radius: 10px; padding: .7rem .9rem; font-family: var(--sans); font-size: .93rem; }
.layers { margin: 0 0 .8rem; display: grid; gap: .35rem; }
.layers dt { font: 700 .82rem var(--sans); color: var(--clay-dark); margin-top: .35rem; }
.layers dd { margin: 0; padding-left: .8rem; border-left: 3px solid var(--clay-soft); }
.nb-foot { padding-top: 1rem; display: flex; justify-content: flex-end; }
.tried[aria-pressed="true"] { background: var(--navy); color: var(--parchment); }
.tried[aria-pressed="true"]::before { content: "✓"; font-weight: 800; }

/* AI critique */
.prompt { font-family: var(--sans); background: var(--sky-soft); padding: .5rem .8rem; border-radius: 10px; }
.ai-answer { padding-left: 1.4rem; margin: 0 0 1rem; }
.ai-answer li { margin-bottom: .8rem; }
.ai-answer p { margin: 0 0 .3rem; font-style: italic; }
.ai-answer label { font: .88rem var(--sans); display: inline-flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
select, input[type="text"], textarea { font: 1rem var(--sans); color: var(--navy); background: #fff; border: 2px solid var(--navy-2); border-radius: 10px; padding: .5rem .6rem; min-height: 44px; max-width: 100%; }
select:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--clay); outline-offset: 2px; }

/* details "paper flap" */
.flap { margin: .6rem 0 .4rem; border: 2px solid var(--navy); border-radius: 12px; background: var(--paper); overflow: hidden; }
.flap summary { cursor: pointer; list-style: none; padding: .75rem 1rem; font: 700 .97rem var(--sans); background: repeating-linear-gradient(-45deg, var(--parchment) 0 10px, #F6EBDA 10px 20px); display: flex; align-items: center; gap: .6rem; min-height: 44px; }
.flap summary::-webkit-details-marker { display: none; }
.flap summary::before { content: "▸"; transition: transform .2s; display: inline-block; color: var(--clay); }
.flap[open] summary::before { transform: rotate(90deg); }
.flap > ol { padding: .6rem 1rem .8rem 2.4rem; margin: 0; }
.flap li { margin: .4rem 0; }
@media (prefers-reduced-motion: reduce) { .flap summary::before { transition: none; } }

/* fixer */
.fixer { display: grid; gap: .8rem; margin: .4rem 0 .8rem; }
.code-label, .mini-label { font: 700 .8rem var(--sans); text-transform: uppercase; letter-spacing: .08em; color: var(--navy-2); margin: 0; }
.code { width: 100%; font: .88rem/1.5 var(--mono); background: var(--navy); color: #F2F6F9; border-color: var(--navy); tab-size: 2; white-space: pre; overflow: auto; resize: vertical; }
.code:focus-visible { outline-color: var(--clay); }
.fixer-actions { display: flex; flex-wrap: wrap; gap: .6rem; }
.fixer-out { display: grid; gap: 1rem; }
@media (min-width: 760px) { .fixer-out { grid-template-columns: 1.2fr 1fr; align-items: start; } }
#preview { width: 100%; height: 260px; border: 2px solid var(--navy-2); border-radius: 10px; background: #fff; }
.check-list { list-style: none; padding: 0; margin: .3rem 0 0; font-family: var(--sans); font-size: .93rem; display: grid; gap: .3rem; }
.check-list li { padding: .35rem .55rem; border-radius: 8px; background: var(--parchment); }
.check-list .pass { background: #E3F1E6; }
.check-list .fail { background: #FBE6DF; }
.check-list .muted { color: var(--muted); }
.check-list strong { font-weight: 800; margin-right: .3rem; }
.check-summary { font-weight: 700; }

/* tally */
.tally { background: var(--parchment); border: 2px solid var(--navy-2); border-radius: 12px; padding: .9rem; font-family: var(--sans); }
.tally-grid { display: grid; gap: .9rem; grid-template-columns: 1fr; }
@media (min-width: 520px) { .tally-grid { grid-template-columns: 1fr 1fr; } }
.tally-col { display: grid; gap: .35rem; }
.tally-col label { font-weight: 700; font-size: .9rem; }
.tally-row { display: flex; align-items: center; gap: .6rem; }
.tally-row output { font: 800 1.6rem var(--sans); min-width: 2.5ch; text-align: center; }
.tally-note { font-size: .88rem; color: var(--muted); margin: .7rem 0 0; }

/* ---------- essay ---------- */
.essay { max-width: 820px; }
.essay > section { max-width: var(--measure); margin: 0 auto 0 0; padding: 1.6rem 0; border-top: 1px solid var(--line); }
.essay .section-head { margin-bottom: 1rem; }
.standfirst { font-size: 1.18rem; color: var(--muted); }
.essay h3 { font-size: clamp(1.35rem, 1.1rem + 1vw, 1.75rem); display: flex; gap: .7rem; align-items: baseline; }
.chno { flex: none; font: 800 .95rem var(--sans); width: 2rem; height: 2rem; display: inline-grid; place-items: center; border-radius: 50%; background: var(--clay); color: #fff; transform: translateY(-.15rem); }
.essay p { margin: 0 0 1rem; }
.loop { margin: 1rem 0 1.4rem; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); padding: .6rem; }
.loop svg { display: block; width: 100%; height: auto; }
.loop .tabs text { font: 700 15px var(--sans); fill: var(--navy); }
.loop .loop-note { font: italic 13px var(--serif); fill: var(--muted); }
.table-wrap { overflow-x: auto; margin: 0 0 1.2rem; border-radius: 12px; border: 1px solid var(--line); background: var(--paper); }
table { border-collapse: collapse; width: 100%; font-family: var(--sans); font-size: .93rem; min-width: 480px; }
caption { text-align: left; font-weight: 700; padding: .7rem .8rem .3rem; }
th, td { text-align: left; padding: .55rem .8rem; border-top: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--sky-soft); }
.recipe { padding-left: 1.4rem; }
.recipe li { margin: .35rem 0; }
.when { padding-left: 1.2rem; }
.when li { margin: .45rem 0; }
.bars { margin: 1rem 0 1.4rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; }
.bar-list { list-style: none; margin: 0 0 .7rem; padding: 0; display: grid; gap: .45rem; font-family: var(--sans); font-size: .92rem; }
.bar-list li { display: grid; grid-template-columns: 6.5rem 1fr 3.4rem; gap: .6rem; align-items: center; }
.b-t { height: 16px; background: var(--sky-soft); border-radius: 4px; overflow: hidden; border: 1px solid rgba(28,51,70,.2); }
.b-f { display: block; height: 100%; width: calc(var(--v) * 1%); min-width: 3px; background: var(--clay); }
.b-v { font-weight: 700; text-align: right; }
.bars figcaption { font-family: var(--sans); font-size: .85rem; color: var(--muted); }
.objection { background: var(--navy); color: var(--parchment); border-radius: 20px; padding: 1.6rem 1.4rem !important; margin: 1rem 0 !important; border-top: 0 !important; max-width: calc(var(--measure) + 2.8rem) !important; }
.objection h3, .objection p { color: var(--parchment); }
.objection a { color: var(--sky); }
.objection a:hover { color: #fff; }
.objection :focus-visible { outline-color: var(--sky); }
.objection .tag { background: var(--parchment); }
.objection .chno { background: var(--sky); color: var(--navy); }
.objection-quote { margin: 0 0 1.2rem; padding: 1rem 1.2rem; border-left: 5px solid var(--clay-soft); background: rgba(255,255,255,.07); border-radius: 0 12px 12px 0; font-size: 1.12rem; font-style: italic; }
.objection-quote p { margin: 0; }

.converter { margin-top: 1.4rem; background: var(--sky-soft); border: 2px solid var(--sky); border-radius: var(--radius); padding: 1.1rem; font-family: var(--sans); }
.converter h4 { text-transform: none; letter-spacing: 0; font-size: 1.1rem; font-family: var(--serif); color: var(--navy); }
.conv-grid { display: grid; gap: .45rem; margin-top: .6rem; }
.conv-grid label { font-weight: 700; font-size: .93rem; margin-top: .3rem; }
.conv-grid .btn { justify-self: start; margin-top: .6rem; }
.conv-out { margin: 1rem 0 0; padding-left: 1.4rem; }
.conv-out:empty { display: none; }
.conv-out li { margin: .4rem 0; }

/* ---------- misconceptions ---------- */
.mis-grid { display: grid; gap: 1rem; margin: 1rem 0 0; }
@media (min-width: 720px) { .mis-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .mis-grid { grid-template-columns: repeat(3, 1fr); } }
.mis-grid > div { background: var(--paper); border-radius: var(--radius); padding: 1rem 1.1rem; border: 1px solid var(--line); box-shadow: var(--shadow); position: relative; }
.mis-grid > div::before { content: ""; position: absolute; top: -8px; left: 50%; width: 70px; height: 18px; transform: translateX(-50%) rotate(-2deg); background: rgba(184,220,235,.85); }
.mis-grid dt { font-weight: 700; font-style: italic; color: var(--clay-dark); margin-bottom: .4rem; }
.mis-grid dd { margin: 0; }

/* ---------- open question ---------- */
.open-q { text-align: center; }
.open-q > * { max-width: 48rem; margin-left: auto; margin-right: auto; }
.oq { font-size: clamp(1.4rem, 1.1rem + 1.4vw, 2rem); line-height: 1.3; color: var(--navy); font-style: italic; padding: 1.4rem; border-top: 3px double var(--navy); border-bottom: 3px double var(--navy); }

/* ---------- worksheet ---------- */
.ws-head { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; align-items: center; margin-bottom: 1rem; }
.ws-head h2 { margin: 0; }
.ws-head p { margin: 0; flex: 1 1 18rem; font-family: var(--sans); color: var(--muted); }
.ws-sheet { background: #fff; border: 2px solid var(--navy); border-radius: 6px; padding: 1.4rem; max-width: 820px; box-shadow: 6px 6px 0 var(--sky); font-family: var(--sans); }
.ws-title { font-weight: 800; margin: 0 0 .4rem; }
.ws-path { font-size: .93rem; margin: 0 0 1rem; }
.ws-fields { margin: 0; padding-left: 1.4rem; }
.ws-fields li { margin: 0 0 .9rem; }
.ws-fields span { display: block; font-size: .93rem; padding-bottom: 2.4rem; border-bottom: 1.5px solid #9AA8B4; }
.ws-foot { font-size: .85rem; color: var(--muted); margin: .6rem 0 0; }

/* ---------- related ---------- */
.rel-grid { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 1rem; }
@media (min-width: 720px) { .rel-grid { grid-template-columns: repeat(2, 1fr); } }
.rel-grid li { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem; box-shadow: var(--shadow); }
.rel-grid a { display: grid; text-decoration: none; color: var(--navy); }
.rel-grid a strong { font-size: 1.2rem; text-decoration: underline; text-decoration-color: var(--clay); text-underline-offset: .2em; }
.rel-grid a span { font: .85rem var(--sans); color: var(--muted); }
.rel-grid p { margin: .5rem 0 0; }

/* ---------- sources ---------- */
.src-list { padding-left: 1.4rem; max-width: 60rem; }
.src-list li { margin: 0 0 1.2rem; }
.src-list p { margin: 0 0 .3rem; }
.cite { font-weight: 600; }
.cite a { word-break: break-all; }
.made-note { font-family: var(--sans); font-size: .9rem; color: var(--muted); max-width: 60rem; }

/* ---------- return / footer ---------- */
.return { text-align: center; background: var(--sky); border-radius: 26px; max-width: calc(1200px - 32px); margin: 1rem auto 2rem; }
@media (max-width: 1232px) { .return { margin-left: 16px; margin-right: 16px; } }
.return .cta { justify-content: center; margin: 1.2rem 0 0; }
.site-foot { text-align: center; padding: 1.5rem 16px 2.5rem; font-family: var(--sans); font-size: .88rem; color: var(--muted); }
.site-foot p { margin: .3rem 0; }

/* ---------- 404 ---------- */
.nf { max-width: 40rem; margin: 0 auto; padding: 4rem 16px; text-align: center; }
.nf svg { width: 220px; height: auto; margin-bottom: 1rem; }

/* ---------- print ---------- */
@media print {
  body { background: #fff; font-size: 11pt; }
  .topbar, .skip, .cta, .js-only, .nb-foot, .no-print, .map-card, #announcer, .site-foot .no-print { display: none !important; }
  .notebook, .ws-sheet, .mis-grid > div, .rel-grid li, .toc { box-shadow: none !important; break-inside: avoid-page; }
  .toc { background: #fff; color: #000; border: 1px solid #000; }
  .toc a, .toc h2 { color: #000; }
  .objection { background: #fff !important; color: #000 !important; border: 1px solid #000; }
  .objection h3, .objection p, .objection a { color: #000 !important; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .8em; word-break: break-all; }
  .flap > ol { display: block; }
  details.flap:not([open]) > *:not(summary) { display: block; }
  /* worksheet-only mode */
  body.print-worksheet main > *:not(#worksheet), body.print-worksheet .site-foot { display: none !important; }
  body.print-worksheet #worksheet { padding: 0; }
  body.print-worksheet .ws-sheet { border: 1.5px solid #000; box-shadow: none; max-width: none; }
  body.print-worksheet .ws-fields span { padding-bottom: 3.2rem; }
}