:root{
  --paper:#FBFAF6; --sheet:#FFFFFF; --ink:#1F2A3A; --muted:#566070;
  --blue:#22395C; --blue-deep:#172841; --buff:#E9D9B0; --buff-soft:#F4ECD6;
  --red:#9E3326; --green:#2F6B4F; --rule:#D8D1BE;
  --serif:"Libre Caslon Text",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3","Segoe UI",system-ui,-apple-system,sans-serif;
  --base:18px; --measure:68ch;
}
body.guided{--base:20px; --measure:60ch}
body.large{--base:23px}
*{box-sizing:border-box}
html{scroll-padding-top:20px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 var(--base)/1.65 var(--sans)}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4vw,2.7rem)}
h2{font-size:1.6rem}
h3{font-size:1.25rem}
p{margin:0 0 1em;max-width:var(--measure)}
a{color:var(--blue)}
img{max-width:100%;display:block}
button,.btn{font:600 .95rem/1.2 var(--sans);min-height:48px;padding:12px 20px;border-radius:6px;border:1.5px solid var(--blue);background:var(--sheet);color:var(--blue);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;touch-action:manipulation}
button:hover,.btn:hover{background:var(--buff-soft)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep)}
.btn-quiet{border-color:transparent;background:transparent;text-decoration:underline;padding:12px 8px}
:focus-visible{outline:3px solid #C98A1B;outline-offset:3px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:20;background:#fff;padding:10px}

/* header */
.top{background:var(--blue);color:#fff}
.top-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.brand{font-family:var(--serif);font-size:1.35rem;color:#fff;text-decoration:none;margin-right:auto}
.top nav{display:flex;gap:4px}
.top nav a{color:#fff;text-decoration:none;padding:10px 14px;border-radius:6px;font-weight:600;font-size:.95rem}
.top nav a[aria-current="page"],.top nav a:hover{background:rgba(255,255,255,.14)}
.tools{display:flex;gap:6px}
.tools button{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);min-height:44px;padding:8px 14px;font-size:.9rem}
.tools button:hover,.tools button[aria-pressed="true"]{background:var(--buff);color:var(--blue-deep);border-color:var(--buff)}
.wrap{max-width:1180px;margin:0 auto;padding:32px 24px 120px}

/* home */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;margin-bottom:48px}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);margin-bottom:.4em}
.hero .q{font-size:1.2rem;color:var(--muted)}
.hero figure{margin:0}
.hero img{border-radius:4px;aspect-ratio:4/3;object-fit:cover;width:100%}
.days{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.day{display:block;background:var(--sheet);border:1px solid var(--rule);border-top:6px solid var(--blue);padding:28px;text-decoration:none;color:var(--ink);border-radius:2px}
.day:hover{border-color:var(--blue)}
.day .when{font-weight:700;color:var(--red);font-size:.95rem;margin-bottom:6px;display:block}
.day p{color:var(--muted);margin:0}

/* day overview */
.acts{list-style:none;margin:24px 0 0;padding:0;border-top:2px solid var(--ink);max-width:820px}
.acts li{border-bottom:1px solid var(--rule)}
.acts a,.acts .soon{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:center;padding:18px 8px;text-decoration:none;color:var(--ink)}
.acts a:hover{background:var(--buff-soft)}
.acts .num{font-family:var(--serif);font-size:1.5rem;color:var(--blue)}
.acts .t{font-size:1.1rem;font-weight:600}
.acts small{display:block;color:var(--muted);font-weight:400}
.acts .soon{color:var(--muted)}
.acts .soon .num{color:var(--rule)}
.tag{font-size:.8rem;font-weight:700;padding:4px 10px;border-radius:20px;background:var(--buff-soft);color:var(--blue-deep);white-space:nowrap}
.tag.done{background:#DDEEE4;color:var(--green)}

/* activity shell */
.act-head{max-width:860px;margin:0 auto 18px}
.crumb{font-size:.95rem;color:var(--muted);margin-bottom:6px}
.crumb a{color:var(--muted)}
.tracker{display:flex;gap:6px;margin:18px 0 0;padding:0;list-style:none}
.tracker li{flex:1;min-width:0}
.tracker button{width:100%;min-height:0;padding:0 0 8px;border:0;border-bottom:5px solid var(--rule);border-radius:0;background:none;color:var(--muted);font-size:.85rem;font-weight:600;justify-content:flex-start;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tracker button.seen{border-bottom-color:#9CB0C8}
.tracker button[aria-current="step"]{border-bottom-color:var(--blue);color:var(--blue)}
.stage{max-width:860px;margin:0 auto;background:var(--sheet);border:1px solid var(--rule);padding:clamp(22px,4vw,44px);border-radius:2px}
.stage h2{margin-bottom:.6em}
.lead{font-size:1.12em;color:var(--ink)}
.stepnav{position:sticky;bottom:0;background:rgba(251,250,246,.96);border-top:1px solid var(--rule);margin-top:28px;padding:12px 0}
.stepnav-inner{max-width:860px;margin:0 auto;display:flex;gap:12px;align-items:center}
.stepnav .count{margin-right:auto;color:var(--muted);font-size:.95rem}

/* reading */
.read-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.read-grid.solo{grid-template-columns:minmax(0,1fr)}
[data-read].reading{background:var(--buff-soft);box-shadow:-10px 0 0 var(--buff-soft),10px 0 0 var(--buff-soft)}
figure.pic{margin:0}
figure.pic button{padding:0;border:0;background:none;min-height:0;display:block;width:100%;cursor:zoom-in}
figure.pic img{width:100%;border:1px solid var(--rule)}
figure.pic figcaption{font-size:.85rem;color:var(--muted);line-height:1.45;margin-top:8px}
.ai-badge{display:inline-block;font-size:.75rem;font-weight:700;background:var(--ink);color:#fff;padding:2px 8px;border-radius:3px;margin-right:6px}
.callout{border-left:5px solid var(--red);background:#FBF3F1;padding:14px 18px;margin:20px 0;max-width:var(--measure)}
.callout p:last-child{margin:0}
.nc-note{border-left-color:#B8902A;background:var(--buff-soft)}
.nc-note b{color:#7A5A12}

/* vocabulary */
.words{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.word{border:1px solid var(--rule);border-top:4px solid var(--buff);padding:18px;background:var(--paper)}
.word h3{font-size:1.35rem;margin:0 0 6px}
.word p{margin:0 0 8px}
.word .ex{color:var(--muted);font-style:italic;margin:0}

/* event browser */
.ev-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.ev-tabs button{min-height:44px;padding:8px 14px;font-family:var(--serif);font-weight:400;font-size:1.05rem}
.ev-tabs button[aria-pressed="true"]{background:var(--blue);color:#fff}
.ev-tabs button.seen::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block}
.ev-year{font-family:var(--serif);font-size:3rem;line-height:1;color:var(--red);margin:0 0 4px}
.chain{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:18px;border:1px solid var(--rule)}
.chain div{padding:14px 16px}
.chain div+div{border-left:1px solid var(--rule);background:var(--buff-soft)}
.chain b{display:block;font-size:.85rem;color:var(--muted);margin-bottom:4px}

/* sequencing challenge */
.seq-intro{margin-bottom:18px}
.tray{display:flex;flex-wrap:wrap;gap:10px;padding:16px;background:var(--buff-soft);border:1px dashed #C7B68A;min-height:84px;margin-bottom:22px}
.tray:empty::before{content:"All cards placed.";color:var(--muted);align-self:center}
.card{min-height:56px;padding:12px 16px;border:1.5px solid var(--ink);border-radius:4px;background:#fff;color:var(--ink);font-weight:600;font-size:.98rem;text-align:left;justify-content:flex-start;max-width:330px;line-height:1.3}
.card[aria-pressed="true"]{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateY(-2px);box-shadow:0 4px 0 var(--blue-deep)}
.track{list-style:none;margin:0;padding:0 0 0 34px;position:relative}
.track::before{content:"";position:absolute;left:13px;top:10px;bottom:10px;width:3px;background:var(--ink)}
.slot{position:relative;margin:0 0 12px}
.slot::before{content:attr(data-n);position:absolute;left:-34px;top:12px;width:29px;height:29px;border-radius:50%;background:var(--paper);border:3px solid var(--ink);font:700 .85rem/23px var(--sans);text-align:center}
.slot>button{width:100%;min-height:60px;justify-content:flex-start;border:2px dashed #A9A08A;background:var(--paper);color:var(--muted);font-weight:600;text-align:left}
.slot>button.filled{border-style:solid;border-color:var(--ink);background:#fff;color:var(--ink)}
.slot>button.ready{border-color:var(--blue);background:#EEF2F8;color:var(--blue)}
.slot.ok>button{border-color:var(--green);background:#E8F3EC}
.slot.ok::before{border-color:var(--green);background:var(--green);color:#fff}
.slot.no>button{border-color:var(--red);background:#FBEDEA}
.slot .mark{font-size:.85rem;font-weight:700;margin-left:auto;padding-left:12px;white-space:nowrap}
.slot.ok .mark{color:var(--green)} .slot.no .mark{color:var(--red)}
.slot.anchor>button{border-style:solid;border-color:var(--ink);background:#fff;color:var(--ink);cursor:default}
.bin{margin:20px 0 0;border:2px dashed var(--red);padding:14px;background:#FCF6F4}
.bin h3{font-family:var(--sans);font-weight:700;font-size:1rem;margin:0 0 4px;color:var(--red)}
.bin p{font-size:.92rem;margin:0 0 10px;color:var(--muted)}
.bin .bin-cards{display:flex;flex-wrap:wrap;gap:8px;min-height:48px}
.bin>button.bin-drop{width:100%;min-height:48px;border-style:dashed;border-color:var(--red);color:var(--red);background:transparent}
.seq-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px;align-items:center}
.feedback{font-weight:600;margin-top:14px;min-height:1.6em;max-width:var(--measure)}
.feedback.good{color:var(--green)} .feedback.try{color:var(--red)}
.locked .track::before{background:var(--green)}.anim .track::before{animation:draw .9s ease-out both;transform-origin:top}
@keyframes draw{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){.anim .track::before{animation:none}.card[aria-pressed="true"]{transform:none}}
.link{margin:-4px 0 14px 0;padding:14px 16px;border-left:3px solid var(--blue);background:#F4F6FA}
.link p{margin:0 0 8px;font-weight:600;color:var(--blue)}
.link label{display:flex;gap:10px;align-items:flex-start;padding:8px 0;cursor:pointer;font-weight:400}
.link input[type=radio]{width:22px;height:22px;margin-top:2px;flex:none}
.link .res{font-weight:600;font-size:.95rem;margin-top:6px}
.badge-earned{display:flex;gap:14px;align-items:center;margin-top:22px;padding:16px 20px;border:2px solid var(--green);background:#E8F3EC;color:var(--green);font-weight:700}
.badge-earned .seal{width:46px;height:46px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:1.3rem;flex:none}

/* quiz + write */
fieldset.q{border:1px solid var(--rule);padding:18px 20px;margin:0 0 20px}
fieldset.q legend{font-weight:700;padding:0 6px;max-width:var(--measure)}
fieldset.q label{display:flex;gap:12px;align-items:flex-start;padding:10px 6px;cursor:pointer;border-radius:4px}
fieldset.q label:hover{background:var(--buff-soft)}
fieldset.q input{width:22px;height:22px;margin-top:3px;flex:none}
textarea{width:100%;font:inherit;font-size:1rem;line-height:1.55;padding:14px;border:1.5px solid #9C9480;border-radius:4px;background:#fff;color:var(--ink);resize:vertical}
textarea:focus{border-color:var(--blue)}
.frames{background:var(--buff-soft);padding:14px 18px;margin:0 0 14px;border-left:5px solid var(--buff)}
.frames p{margin:0 0 6px}
.packet{font-size:.9rem;color:var(--muted);margin-top:8px}
.field{margin-bottom:20px}
.field label{display:block;font-weight:700;margin-bottom:6px}
.err{color:var(--red);font-size:.9rem;font-weight:600;margin-top:6px}

/* map */
.stage.wide{max-width:1180px}
.map-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:28px;align-items:start}
.map-box{position:sticky;top:12px}
#stop figure.pic img{max-height:240px;object-fit:cover}
.map-box svg{width:100%;height:auto;display:block}
.m-ctx{fill:#F2EFE6}
.m-west{fill:url(#m-hatch);stroke:#A89878;stroke-width:.5}
.m-hbg{fill:#EFE8D6}.m-hln{stroke:#B7A986;stroke-width:1}
.m-col{fill:#F6EFDD}.m-nc{fill:var(--buff)}
.m-mod{fill:none;stroke:#A89878;stroke-width:.9;stroke-dasharray:3 3}
.m-cl{fill:none;stroke:#3A2F1D;stroke-width:1.7;stroke-linejoin:round}
.m-pr{fill:none;stroke:var(--red);stroke-width:2.3;stroke-dasharray:10 4 2 4}
.m-lbl{font:600 15px var(--sans);fill:#4E422B}.m-it{font-style:italic;font-weight:400}
.m-sea{font:italic 14px var(--sans);fill:#7B7F88}
.m-ldr{stroke:#3A2F1D;stroke-width:.6}
.m-parr{fill:none;stroke:var(--red);stroke-width:1.6;stroke-dasharray:6 5}
.mk{cursor:pointer}
.mk circle.hit{fill:transparent;stroke:none}
.mk circle.dot{fill:var(--blue);stroke:#fff;stroke-width:3;transition:r .15s}
.mk.visited circle.dot{fill:var(--green)}
.mk.on circle.dot{fill:var(--red);r:19}
.mk text{font:700 15px var(--sans);fill:#fff;pointer-events:none}
.mk .mk-name{font:700 16px var(--sans);fill:var(--ink);paint-order:stroke;stroke:#fff;stroke-width:4px}
.mk:focus{outline:none}.mk:focus-visible circle.dot{stroke:#C98A1B;stroke-width:5}
.stop-empty{color:var(--muted);border:2px dashed var(--rule);padding:24px;text-align:center}
.visits{display:flex;gap:6px;margin:10px 0 0;font-size:.9rem;color:var(--muted);align-items:center}
.pip{width:12px;height:12px;border-radius:50%;background:var(--rule)}.pip.on{background:var(--green)}

/* modal */
dialog{border:0;padding:0;max-width:min(920px,94vw);max-height:90vh;border-radius:4px}
dialog::backdrop{background:rgba(23,40,65,.6)}
.modal-body{padding:24px 28px 28px;overflow:auto;max-height:90vh}
.modal-close{float:right;margin:-6px -10px 0 12px}
.gloss dt{font-family:var(--serif);font-size:1.15rem;margin-top:14px}
.gloss dd{margin:2px 0 0}

/* footer */
.foot{max-width:1180px;margin:0 auto;padding:18px 24px 40px;display:flex;gap:16px;flex-wrap:wrap;align-items:center;border-top:1px solid var(--rule);color:var(--muted);font-size:.9rem}
.foot span{margin-right:auto}
.foot button{min-height:44px;font-size:.88rem}

@media (max-width:900px){
  .hero,.days,.read-grid,.map-layout{grid-template-columns:1fr}
  .read-grid figure.pic{max-width:480px}
  .tracker button{font-size:0;padding-bottom:6px}
}
@media (max-width:600px){.top-inner{gap:10px}.tools button{padding:8px 10px}.chain{grid-template-columns:1fr}.chain div+div{border-left:0;border-top:1px solid var(--rule)}}
@media print{.top,.stepnav,.foot,.tools{display:none}.stage{border:0}}

/* day 1 additions */
.choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin:8px 0 6px}
.choice{min-height:64px;text-align:left;justify-content:flex-start;font-size:1rem;line-height:1.3}
.choice[aria-pressed="true"]{background:var(--blue);color:#fff}
.sorts{border-top:2px solid var(--ink)}
.sort-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 20px;align-items:center;padding:16px 4px;border-bottom:1px solid var(--rule)}
.sort-row.ok{background:#F1F8F3}.sort-row.no{background:#FCF1EE}
.sort-text p,.sort-text blockquote{margin:0}.sort-text small{color:var(--muted)}
.sort-text blockquote{font-family:var(--serif);font-size:1.08em}
.sort-pick{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
.sort-pick button{min-height:44px;padding:8px 14px;font-size:.9rem}
.sort-pick button[aria-pressed="true"]{background:var(--blue);color:#fff}
.sort-res{grid-column:1/-1;margin:0;font-weight:600;font-size:.95rem;min-height:0}
.sort-row.ok .sort-res{color:var(--green)}.sort-row.no .sort-res{color:var(--red)}
.source-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:32px;align-items:start}
.excerpt{border-top:1px solid var(--rule);padding:20px 0}
.excerpt blockquote{font-family:var(--serif);font-size:1.3em;line-height:1.45;margin:0 0 14px;padding-left:18px;border-left:4px solid var(--red);max-width:var(--measure)}
.plain{background:var(--buff-soft);padding:12px 16px;margin-bottom:10px;max-width:var(--measure)}
.plain b{display:block;font-size:.85rem;color:var(--muted)}.plain p{margin:0}
.connect{margin:8px 0 0}
blockquote.account{font-family:var(--serif);font-size:1.2em;line-height:1.5;margin:0 0 16px;padding:16px 20px;background:var(--buff-soft);border-left:4px solid var(--blue);max-width:var(--measure)}
@media (max-width:900px){.source-grid{grid-template-columns:1fr}.sort-row{grid-template-columns:1fr}.sort-pick{justify-content:flex-start}}

fieldset.q legend{float:left;width:100%;padding:0;margin-bottom:10px}
fieldset.q legend+*{clear:both}