/* Peakscor Learn. Loaded on /learn routes only. Design tokens from index.html :root, no color literals.
   Secondary text uses --ink-soft (AA on every surface); --muted is never used here (4.2:1). 390px first. */
.ln-root{max-width:760px;margin:0 auto;padding:20px 16px 72px;color:var(--ink);font-size:16px;line-height:1.6}
@media (min-width:720px){.ln-root{padding:36px 28px 96px}}
.ln-page{display:flex;flex-direction:column;gap:18px}
.ln-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ln-muted{color:var(--ink-soft)}
.ln-kicker{margin:0;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.ln-title{font-family:'Fraunces',Georgia,serif;font-size:32px;line-height:1.1;letter-spacing:-.015em;margin:0}
@media (min-width:720px){.ln-title{font-size:42px}}
.ln-title:focus{outline:none}
.ln-lede{margin:6px 0 0;font-size:17px;color:var(--ink-soft);max-width:60ch}
.ln-h2{font-family:'Fraunces',Georgia,serif;font-size:23px;line-height:1.2;margin:10px 0 0}
.ln-h3{font-size:16px;font-weight:700;margin:14px 0 6px}
.ln-h{font-size:17px;font-weight:700;margin:0 0 10px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.ln-text p{margin:0 0 12px}
.ln-text p:last-child{margin-bottom:0}

/* crumbs + step bar */
.ln-crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:15px;color:var(--ink-soft)}
.ln-crumbs a{color:var(--accent-deep);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.ln-crumbs a:hover{text-decoration:underline}
.ln-crumbs span{display:inline-flex;align-items:center}
.ln-steps-bar{display:flex;gap:4px}
.ln-seg{flex:1;height:6px;border-radius:3px;background:var(--line)}
.ln-seg.is-done{background:var(--accent)}
.ln-seg.is-here{box-shadow:0 0 0 2px var(--surface),0 0 0 3.5px var(--accent-deep)}

/* cards */
.ln-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 16px;box-shadow:var(--shadow)}
@media (min-width:720px){.ln-card{padding:22px 24px}}
.ln-tag{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 8px;border-radius:999px;background:var(--paper-2);border:1px solid var(--line);color:var(--ink)}
.ln-trap{border-left:4px solid var(--hard)}
.ln-desmos{border-left:4px solid var(--accent)}
.ln-trap p,.ln-desmos p{margin:0 0 8px}
.ln-trap p:last-child,.ln-desmos p:last-child{margin:0}
.ln-diff{font-size:12px;font-weight:600;padding:3px 9px 3px 7px;border-radius:999px;color:var(--ink);display:inline-flex;align-items:center;gap:6px}
.ln-diff::before{content:"";width:7px;height:7px;border-radius:50%}
.ln-diff-easy{background:var(--easy-bg)}.ln-diff-easy::before{background:var(--easy)}
.ln-diff-medium{background:var(--medium-bg)}.ln-diff-medium::before{background:var(--medium)}
.ln-diff-hard{background:var(--hard-bg)}.ln-diff-hard::before{background:var(--hard)}

/* passages, stems, choices */
.ln-passage{font-family:var(--q-font,'Newsreader',Georgia,serif);font-size:17.5px;line-height:1.7;background:var(--paper-2);border-radius:12px;padding:14px 16px;margin:0 0 12px}
.ln-passage-multi p{margin:0 0 8px}.ln-passage-multi p:last-child{margin:0}
.ln-notes{margin:0 0 8px;padding-left:1.25em}.ln-notes:last-child{margin-bottom:0}.ln-notes li{margin:0 0 4px}
.ln-ptable{border-collapse:collapse;margin:4px 0 8px;font-size:16px}.ln-ptable:last-child{margin-bottom:0}
.ln-ptable th,.ln-ptable td{border:1px solid var(--line);padding:6px 14px;text-align:center}.ln-ptable th{background:var(--surface);font-weight:600}
.ln-stem{font-weight:600;margin:0 0 12px}
.ln-blank{display:inline-block;width:3.2em;height:1em;border-bottom:2px solid var(--ink);vertical-align:-2px;margin:0 2px}
.ln-choices{display:flex;flex-direction:column;gap:8px;margin:0;padding:0;list-style:none}
.ln-choice{display:flex;align-items:flex-start;gap:12px;width:100%;min-height:48px;padding:11px 14px;text-align:left;font:inherit;font-size:16px;color:var(--ink);background:var(--surface);border:1.5px solid var(--line);border-radius:12px;cursor:pointer;transition:border-color .12s,background-color .12s}
.ln-choice:hover:not(:disabled){border-color:var(--accent)}
.ln-choice:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.ln-choice:disabled{cursor:default}
.ln-choice.is-picked,.ln-choice[aria-checked="true"]{border-color:var(--accent-deep);background:var(--paper-2)}
.ln-choice.is-key{border-color:var(--good);background:var(--good-bg)}
.ln-choice.is-wrong{border-color:var(--bad);background:var(--bad-bg)}
.ln-letter{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1.5px solid currentColor;display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:1px}
.ln-choice-text{flex:1;padding-top:2px}
.ln-choices-static li{display:flex;align-items:flex-start;gap:12px;padding:10px 14px;border:1.5px solid var(--line);border-radius:12px;flex-wrap:wrap}
.ln-choices-static li>span:nth-child(2){flex:1;min-width:0;padding-top:2px}
.ln-choices-static li.is-key{border-color:var(--good);background:var(--good-bg)}
.ln-choices-static li.is-wrong{border-color:var(--bad);background:var(--bad-bg)}
.ln-keytag{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;align-self:center}
.ln-steps{margin:0;padding-left:22px}
.ln-steps li{margin:0 0 6px}
.ln-why{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.ln-why li{padding:10px 12px;border-radius:10px;background:var(--paper-2)}
.ln-why li.is-key{background:var(--good-bg)}
.ln-why li.is-picked{background:var(--bad-bg)}
.ln-feedback:empty{display:none}
.ln-feedback{margin-top:14px}
.ln-verdict{font-weight:700;margin:0 0 8px;padding-left:10px;border-left:4px solid var(--line)}
.ln-verdict.is-good{border-color:var(--good)}
.ln-verdict.is-bad{border-color:var(--bad)}
.ln-verdict.is-warn{border-color:var(--medium);font-weight:600}
.ln-accepted{color:var(--ink-soft);font-size:15px}
.ln-accepted code,.ln-review code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:15px;background:var(--paper-2);padding:1px 6px;border-radius:6px;color:var(--ink)}
.ln-spr-label{display:block;font-weight:600;margin-bottom:6px}
.ln-spr-row{display:flex;gap:10px;flex-wrap:wrap}
.ln-spr-input{flex:1 1 160px;min-height:48px;font:inherit;font-size:18px;padding:10px 14px;border:1.5px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);letter-spacing:.06em}
.ln-spr-input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* tables */
.ln-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.ln-table{border-collapse:collapse;width:100%;font-size:15px}
.ln-table caption{text-align:left;font-weight:700;padding:12px 14px 4px}
.ln-table th,.ln-table td{padding:10px 14px;border-top:1px solid var(--line);text-align:left;vertical-align:top}
.ln-table thead th{font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);border-top:0}

/* buttons */
.ln-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px 18px;border-radius:999px;font:inherit;font-size:16px;font-weight:600;text-decoration:none;cursor:pointer;border:1.5px solid transparent;transition:background-color .12s,border-color .12s}
.ln-btn-primary{background:var(--ink);color:var(--paper-2)}
.ln-btn-primary:hover{background:var(--accent-deep)}
.ln-btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.ln-btn-ghost:hover{border-color:var(--ink)}
.ln-btn:focus-visible,.ln-mod:focus-visible,.ln-resume:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.ln-linkbtn{background:none;border:0;padding:0 2px;min-height:44px;font:inherit;font-weight:700;color:var(--accent-deep);text-decoration:underline;cursor:pointer}
.ln-pager{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:8px}
.ln-pager .ln-btn-primary{margin-left:auto}
.ln-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}

/* overview + summary */
.ln-stemquote{margin:0;padding:14px 16px;border-left:4px solid var(--accent);background:var(--surface);border-radius:0 12px 12px 0;font-family:var(--q-font,'Newsreader',Georgia,serif);font-size:17.5px}
.ln-toc,.ln-rules{margin:0;padding-left:22px}
.ln-toc li{margin:0 0 4px}
.ln-toc a{color:var(--accent-deep);display:inline-block;min-height:44px;padding-top:10px}
.ln-rules li{margin:0 0 10px;padding-left:4px}

/* course home */
.ln-hero{padding:4px 0 6px}
.ln-resume-row{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:620px){.ln-resume-row{grid-template-columns:1fr 1fr}}
.ln-resume{display:flex;flex-direction:column;gap:2px;text-decoration:none;color:var(--ink);transition:border-color .12s}
.ln-resume:hover{border-color:var(--ink)}
.ln-resume-title{font-family:'Fraunces',Georgia,serif;font-size:21px;line-height:1.2}
.ln-section-head{display:flex;align-items:center;gap:14px;margin-bottom:4px}
.ln-section-head .ln-h2{margin:0}
.ln-ring{flex:0 0 auto}
.ln-ring-bg{fill:none;stroke:var(--line);stroke-width:5}
.ln-ring-fg{fill:none;stroke:var(--accent);stroke-width:5;stroke-linecap:round;transition:stroke-dashoffset .18s}
.ln-ring text{font-size:12px;font-weight:700;fill:var(--ink)}
.ln-unit{margin-top:14px}
.ln-unit .ln-h3{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;margin:0 0 8px}
.ln-weight{font-size:14px;font-weight:500;color:var(--ink-soft)}
.ln-modlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.ln-mod{display:flex;align-items:center;gap:10px;min-height:48px;padding:10px 14px;border-radius:12px;border:1px solid var(--line);background:var(--paper-2);color:var(--ink);text-decoration:none;transition:border-color .12s}
a.ln-mod:hover{border-color:var(--ink)}
.ln-mod-title{flex:1;font-weight:600}
.ln-mod.is-soon{background:transparent;border-style:dashed}
.ln-mod.is-soon .ln-mod-title{font-weight:500;color:var(--ink-soft)}
.ln-arrow{color:var(--accent-deep)}
.ln-chip{font-size:13px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--ink);white-space:nowrap}
.ln-chip.is-good{background:var(--good-bg);border-color:var(--good)}
.ln-chip-soon{color:var(--ink-soft)}

/* quiz */
.ln-quiz{display:flex;flex-direction:column;gap:14px}
.ln-quiz-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.ln-quizbar{height:6px;border-radius:3px;background:var(--line);margin-bottom:14px;overflow:hidden}
.ln-quizbar span{display:block;height:100%;background:var(--accent);transition:width .18s}
.ln-quiz-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px}
.ln-quiz-result:focus{outline:none}
.ln-quiz-result,.ln-quiz-q,.ln-page{scroll-margin-top:84px}
.ln-score{font-family:'Fraunces',Georgia,serif;font-size:40px;line-height:1.1;margin:2px 0 8px}
.ln-score span{font-size:22px;color:var(--ink-soft)}
.ln-review .ln-choices-static{margin-bottom:6px}
.ln-tex{font-family:var(--q-math-font,'Cambria Math',serif)}
@media (prefers-reduced-motion:reduce){.ln-root *{transition:none!important}}