/* Layout: workshop worksheet — a sticky bench-top header with level switch and tabs, a topic rail on the left, content as numbered sheets. */
:root{
  --bg:#F1F3F1; --card:#FFFFFF; --ink:#1B2630; --muted:#5A6672; --line:#D3D9D6; --soft:#E6EAE7;
  --steel:#245A73; --steel-ink:#FFFFFF; --tag:#F0B429; --tag-ink:#2A1F00;
  --good:#1F7A4D; --good-bg:#E2F2E8; --bad:#B23A2E; --bad-bg:#F8E3E0; --warn-bg:#FFF4D6;
  --f-display:"Barlow","Segoe UI",system-ui,sans-serif;
  --f-meta:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  --acc:var(--tag);
  --f-body:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --r:6px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#11171C; --card:#192229; --ink:#E4E9EC; --muted:#99A6B0; --line:#2B363F; --soft:#212B33;
  --steel:#6FAFCB; --steel-ink:#0C1A21; --tag:#F2BE45; --tag-ink:#231900;
  --good:#5CC796; --good-bg:#16362A; --bad:#F08A7E; --bad-bg:#3A1D1A; --warn-bg:#3A3018; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#11171C; --card:#192229; --ink:#E4E9EC; --muted:#99A6B0; --line:#2B363F; --soft:#212B33;
  --steel:#6FAFCB; --steel-ink:#0C1A21; --tag:#F2BE45; --tag-ink:#231900;
  --good:#5CC796; --good-bg:#16362A; --bad:#F08A7E; --bad-bg:#3A1D1A; --warn-bg:#3A3018; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.55}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--tag);outline-offset:2px}
h1,h2,h3{font-family:var(--f-display);line-height:1.1;text-wrap:balance;margin:0}
.wrap{max-width:1180px;margin:0 auto;padding-inline:16px}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:var(--ink);color:var(--bg);border-bottom:4px solid var(--tag)}
:root[data-theme="dark"] .top{background:#0A0F13;color:var(--ink)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .top{background:#0A0F13;color:var(--ink)}}
.top-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding-block:12px 0}
.brand{display:flex;align-items:baseline;gap:10px;margin-right:auto}
.brand h1,
.brand .bn{font-size:1.65rem;font-weight:700;letter-spacing:.01em;text-transform:uppercase}
.brand span{font-family:var(--f-meta);font-size:.72rem;opacity:.7;letter-spacing:.06em}
.level{display:inline-flex;border:1.5px solid currentColor;border-radius:999px;overflow:hidden}
.level button,
.level a{background:none;border:0;padding:5px 14px;font-family:var(--f-display);font-weight:600;font-size:1.05rem;letter-spacing:.04em;cursor:pointer;color:inherit}
.level button[aria-pressed="true"],
.level a[aria-current="page"]{background:var(--tag);color:var(--tag-ink)}
.tabs{display:flex;gap:2px;overflow-x:auto;margin-top:10px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button,
.tabs a{background:none;border:0;color:inherit;opacity:.75;padding:9px 14px 11px;font-family:var(--f-display);font-weight:600;font-size:1.1rem;letter-spacing:.03em;text-transform:uppercase;cursor:pointer;border-radius:var(--r) var(--r) 0 0;white-space:nowrap}
.tabs button[aria-selected="true"],
.tabs a[aria-current="page"]{opacity:1;background:var(--bg);color:var(--ink)}

main{padding-block:22px 60px}
.view[hidden]{display:none!important}
.eyebrow{font-family:var(--f-meta);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.chip{display:inline-block;font-family:var(--f-meta);font-size:.68rem;font-weight:500;letter-spacing:.05em;padding:2px 7px;border-radius:3px;vertical-align:middle}
.chip.h{background:var(--tag);color:var(--tag-ink)}
.chip.n{background:var(--steel);color:var(--steel-ink)}
.btn{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--ink);background:var(--card);padding:8px 16px;border-radius:var(--r);cursor:pointer;font-weight:600}
.btn.primary{background:var(--steel);border-color:var(--steel);color:var(--steel-ink)}
a.btn{text-decoration:none;color:var(--ink)}a.btn.primary{color:var(--steel-ink)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn:hover:not(:disabled){filter:brightness(1.06)}
select,input[type=text],textarea{background:var(--card);border:1.5px solid var(--line);border-radius:var(--r);padding:8px 10px;max-width:100%}
label.field{display:flex;flex-direction:column;gap:4px;font-size:.9rem;color:var(--muted)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end}

/* notes */
.notes-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:28px}
.rail{position:sticky;top:130px;align-self:start;max-height:calc(100vh - 150px);overflow:auto;padding-right:4px}
.rail h3{font-size:.95rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:16px 0 6px}
.rail h3:first-child{margin-top:0}
.rail button,
.rail a{display:flex;justify-content:space-between;align-items:center;gap:8px;width:100%;text-align:left;background:none;border:0;padding:6px 10px;border-left:3px solid transparent;cursor:pointer;color:var(--ink);font-size:.97rem}
.rail button:hover,
.rail a:hover{background:var(--soft)}
.rail button[aria-current="true"],
.rail a[aria-current="page"]{border-left-color:var(--tag);background:var(--card);font-weight:600}
.topic-select{display:none}
.sheet{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px clamp(16px,4vw,40px) 30px;min-width:0}
.sheet-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:flex-end;border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:6px}
.sheet-head h2{font-size:clamp(1.9rem,4vw,2.6rem);font-weight:700}
.sec{padding-block:18px;border-bottom:1px dashed var(--line);max-width:72ch}
.sec:last-of-type{border-bottom:0}
.sec h3{font-size:1.35rem;font-weight:600;margin-bottom:8px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.sec p{margin:.4em 0}
.sec ul,.sec ol{margin:.4em 0;padding-left:1.25em}
.sec li{margin:.2em 0}
.tbl{overflow-x:auto;margin:.6em 0}
table.cmp{border-collapse:collapse;width:100%;font-size:.94rem;min-width:420px}
table.cmp th,table.cmp td{border:1px solid var(--line);padding:6px 9px;text-align:left;vertical-align:top}
table.cmp th{background:var(--soft);font-family:var(--f-display);font-size:1rem;letter-spacing:.03em;font-weight:600}
body[data-level="n5"] .hrow, body[data-level="n5"] .hcell{display:none}
.sheet-foot{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

/* panels */
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px clamp(16px,3vw,28px)}
.panel-head{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:flex-end;margin-bottom:18px}
.panel-head h2{font-size:2rem}

/* flashcards */
.fc-stage{display:flex;flex-direction:column;align-items:center;gap:16px}
.card3d{width:min(560px,100%);aspect-ratio:8/5;perspective:1200px;cursor:pointer;max-width:100%}
.card3d .inner{position:relative;width:100%;height:100%;transition:transform .45s;transform-style:preserve-3d}
.card3d.flipped .inner{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;border-radius:10px;padding:22px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;border:1.5px solid var(--ink)}
.face.front{background:var(--card);background-image:linear-gradient(var(--soft) 1px,transparent 1px);background-size:100% 28px}
.face.back{background:var(--steel);color:var(--steel-ink);transform:rotateY(180deg);font-size:1.1rem}
.face .term{font-family:var(--f-display);font-size:clamp(1.6rem,4.5vw,2.4rem);font-weight:600}
.face .corner{position:absolute;top:10px;left:12px;font-family:var(--f-meta);font-size:.7rem;opacity:.7}
.face .hint{position:absolute;bottom:10px;font-size:.78rem;opacity:.6}
.sim{margin:16px 0;border:1.5px solid var(--steel);border-radius:10px;padding:14px;background:var(--card)}
.sim-head{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;margin-bottom:10px}.sim-head b{font-family:var(--f-display);font-size:1.1rem;color:var(--steel)}.sim-head span{color:var(--muted);font-size:.92rem}
.sim-grid{display:grid;grid-template-columns:minmax(220px,1fr) minmax(0,1.4fr);gap:16px;align-items:center}
@media (max-width:700px){.sim-grid{grid-template-columns:1fr}}
.sim-ctrl{display:flex;flex-direction:column;gap:10px}
.sim-in{display:flex;flex-direction:column;gap:2px;font-size:.92rem}.sim-in b{font-family:var(--f-mono)}.sim-in small{color:var(--muted)}
.sim-in input[type=range]{width:100%;accent-color:var(--steel);min-height:28px}
.sim-seg{display:inline-flex;flex-wrap:wrap;border:1.5px solid var(--line);border-radius:999px;overflow:hidden;align-self:flex-start}
.sim-seg button{border:0;background:none;color:inherit;font:inherit;font-size:.88rem;font-weight:600;padding:6px 12px;cursor:pointer;min-height:36px}
.sim-seg button[aria-pressed="true"]{background:var(--steel);color:var(--steel-ink)}
.sim-view svg{display:block;width:100%;height:auto;max-height:300px;color:var(--ink)}
.sim-out{margin-top:10px;padding:10px 12px;background:var(--soft);border-radius:8px;font-size:.95rem;line-height:1.55}.sim-out small{color:var(--muted)}
.sim-wire{fill:none;stroke:currentColor;stroke-width:2}.sim-wire.g{stroke-dasharray:4 3;opacity:.6}
.sim-res{fill:var(--card);stroke:currentColor;stroke-width:2}.sim-sensor{fill:var(--warn-bg);stroke:currentColor;stroke-width:2}
.sim-arrow{stroke:var(--tag);stroke-width:2;fill:none}
.sim-dot{fill:currentColor}.sim-meter{fill:var(--soft);stroke:currentColor;stroke-width:1.5}
.sim-t{font-size:12px;fill:currentColor;font-family:var(--f-body)}.sim-t.b{font-weight:700;font-family:var(--f-mono)}.sim-t.s{font-size:10.5px}.sim-t.xs{font-size:9px;fill:var(--muted)}
.sim-on{fill:var(--good-bg);stroke:var(--good);stroke-width:2}.sim-off{fill:var(--soft);stroke:var(--line);stroke-width:2}
.sim-led{fill:var(--line)}.sim-led-on{fill:#F0B429;filter:drop-shadow(0 0 4px #F0B429)}
.sim-g1{fill:color-mix(in srgb,var(--steel) 30%,var(--card));stroke:currentColor;stroke-width:1.2}.sim-g2{fill:color-mix(in srgb,var(--tag) 35%,var(--card));stroke:currentColor;stroke-width:1.2}
.sim-g3{fill:var(--soft);stroke:currentColor;stroke-width:1.2}.sim-g4{fill:color-mix(in srgb,var(--good) 30%,var(--card));stroke:currentColor;stroke-width:1.2}
.sim-mark{stroke:currentColor;stroke-width:2}
.sim-back{opacity:.55}
.sim-beam{fill:color-mix(in srgb,var(--steel) 25%,var(--card));stroke:currentColor;stroke-width:1.5}
.sim-load{stroke:var(--bad);stroke-width:2.5;fill:none}.sim-load2{stroke:#B54708;stroke-width:2.5;fill:none}.sim-react{stroke:var(--good);stroke-width:2.5;fill:none}
@media print{.sim{display:none}}
.sim-lw{fill:none;stroke:var(--line);stroke-width:3}.sim-lw.on{stroke:var(--steel)}
.sim-ins{flex-wrap:wrap}.sim-ins button{font-family:var(--f-mono)}
table.cmp.sim-tt{min-width:0;width:auto;font-family:var(--f-mono);font-size:.85rem}.sim-tt td,.sim-tt th{text-align:center;padding:3px 10px}.sim-tt tr.cur td{background:var(--warn-bg);font-weight:700}
.ov{text-decoration:overline}
.sim-vact{fill:color-mix(in srgb,var(--steel) 25%,var(--card));stroke:currentColor;stroke-width:2}
.sim-piston{fill:currentColor}.sim-spring{fill:none;stroke:currentColor;stroke-width:1.2}
.sim-ein{fill:color-mix(in srgb,var(--steel) 35%,var(--card));stroke:currentColor;stroke-width:1}
.sim-euse{fill:color-mix(in srgb,var(--good) 45%,var(--card))}.sim-eloss{fill:color-mix(in srgb,var(--bad) 30%,var(--card))}
.sim-chk{flex-direction:row}.sim-chk input{width:20px;height:20px;accent-color:var(--steel);vertical-align:middle;margin-right:6px}
.sim-in select{width:100%;min-height:40px;border:1.5px solid var(--line);border-radius:6px;background:var(--card);padding:6px}
.tc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-top:12px}
.tc-card{border:1px solid var(--line);border-radius:10px;padding:16px;background:var(--card);display:flex;flex-direction:column;gap:10px}
.tc-card h3{margin:0;font-size:1.3rem}.tc-card p{margin:0}
.tc-row{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;justify-content:space-between}.tc-row .btn{flex:1 1 auto}
.tc-lbl{font-weight:700}.tc-mini{font-size:.9rem}
.tc-topics{display:flex;flex-direction:column;gap:2px;max-height:240px;overflow:auto;border:1px solid var(--line);border-radius:8px;padding:8px}
.tc-topics label{display:flex;gap:8px;align-items:flex-start;font-size:.93rem;padding:3px 2px;cursor:pointer}.tc-topics input{width:18px;height:18px;flex:none;margin-top:2px;accent-color:var(--steel)}
.tc-topics h4{margin:8px 0 2px;font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.tc-topics h4:first-child{margin-top:0}
.tc-list{margin:0;padding-left:1.3em;font-size:.93rem}.tc-list li{margin:.3em 0}.tc-list:empty{display:none}
.tc-chk{display:flex;gap:8px;align-items:center;font-size:.93rem}.tc-chk input{width:18px;height:18px;accent-color:var(--steel)}
.tc-keys kbd{font-family:var(--f-mono);font-size:.8rem;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 5px;background:var(--soft)}
.proj{position:fixed;inset:0;z-index:100;background:#0E1418;color:#F3F5F4;display:flex;flex-direction:column;padding:clamp(14px,3vw,40px)}
.proj-top{display:flex;align-items:center;gap:16px;font-family:var(--f-meta);font-size:clamp(.9rem,1.4vw,1.2rem);color:#B9C4CB}
.proj-top #pj-meta{flex:1}.proj-btns{display:flex;gap:8px}
.proj .btn{background:#1E2A32;color:#F3F5F4;border-color:#3A4852}.proj .btn.primary{background:var(--tag);color:#1B2630;border-color:var(--tag)}
.proj-timer{font-family:var(--f-mono);font-size:clamp(1.4rem,3vw,2.6rem);font-weight:600;color:var(--tag)}.proj-timer.done{color:#F08A7E}
.proj-body{flex:1;display:flex;flex-direction:column;justify-content:center;gap:clamp(14px,3vh,34px);max-width:1400px;width:100%;margin:0 auto;overflow:auto}
.proj-q{font-family:var(--f-display);font-weight:600;font-size:clamp(1.8rem,4.2vw,4rem);line-height:1.15;text-wrap:balance}
.proj-q small{display:block;font-family:var(--f-body);font-weight:400;font-size:.45em;color:#B9C4CB;margin-bottom:.5em}
.proj-opts{display:grid;grid-template-columns:1fr 1fr;gap:clamp(10px,2vw,24px)}
.proj-opts div{border:2px solid #3A4852;border-radius:12px;padding:clamp(10px,1.6vw,22px);font-size:clamp(1.1rem,2.4vw,2.2rem);display:flex;gap:.6em;align-items:baseline}
.proj-opts b{font-family:var(--f-mono);color:var(--tag)}
.proj-opts div.right{border-color:#5CC796;background:#16362A}.proj-opts div.dim{opacity:.4}
.proj-ans{font-size:clamp(1.2rem,2.6vw,2.4rem);background:#16362A;border-left:6px solid #5CC796;border-radius:10px;padding:clamp(12px,2vw,26px)}
.proj-ans ul{margin:.3em 0 0;padding-left:1.2em}.proj-ans small{display:block;font-size:.65em;color:#B9C4CB;margin-top:.4em}
.proj-foot{display:flex;justify-content:space-between;gap:12px}.proj-foot .btn{font-size:clamp(1rem,1.6vw,1.4rem);padding:.6em 1.4em}
@media (max-width:640px){.tabs button[data-tab="teacher"],.tabs a[data-tab="teacher"]{display:none}.proj-opts{grid-template-columns:1fr}}
@media print{.proj{display:none!important}}

/* extra activities */
.act-box{max-width:900px}
.act-box h2{font-size:2rem;margin:4px 0 8px}
.act-box .row{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;margin:12px 0}
.act-box .row .field{flex:0 1 320px;min-width:0}
.act-box select,.act-box textarea,.act-box input[type=number],.act-box input[type=text]{font:inherit;font-size:16px;border:1.5px solid var(--line);border-radius:8px;padding:8px 10px;background:var(--card);color:inherit;max-width:100%}
.ab-opt{align-items:center}.ab-opt input{width:20px;height:20px;accent-color:var(--steel);flex:none}
.mp-bar{position:sticky;top:calc(env(safe-area-inset-top,0px) + 70px);z-index:3;display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin-bottom:14px}
.mp-clock{font-family:var(--f-mono);font-size:1.3rem;font-weight:600;color:var(--steel);margin-left:auto}.mp-clock.done{color:var(--bad)}
.mp-q{border-top:1px solid var(--line);padding:14px 0}.mp-q p{margin:4px 0}.mp-q textarea{width:100%}
.mp-ans{white-space:pre-wrap;background:var(--soft);border-radius:8px;padding:10px 12px;margin:8px 0}
.mp-pts{display:flex;flex-direction:column;gap:6px}.mp-sc{font-weight:700;margin-top:6px}
.mp-total{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;border-top:2px solid var(--ink);padding-top:14px;font-size:1.4rem}
mark{background:var(--warn-bg);color:inherit;padding:0 3px;border-radius:3px;font-weight:700}
.lb-fig svg{min-width:0!important;max-width:760px}
.lb-slot{cursor:pointer}.lb-slot rect{fill:var(--card);stroke:var(--steel);stroke-width:1.2;stroke-dasharray:3 2}
.lb-slot text{fill:currentColor;font-family:var(--f-body)}.lb-slot .lb-num{fill:var(--muted);font-size:10px}
.lb-slot.filled rect{stroke-dasharray:none;fill:var(--warn-bg)}.lb-slot.right rect{fill:var(--good-bg);stroke:var(--good)}.lb-slot.wrong rect{fill:var(--bad-bg);stroke:var(--bad)}
.lb-bank{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0;touch-action:none}
.lb-chip{border:1.5px solid var(--steel);background:var(--card);color:inherit;border-radius:999px;padding:8px 14px;font:600 .95rem var(--f-body);cursor:grab;min-height:44px;touch-action:none}
.lb-chip.sel{background:var(--steel);color:var(--steel-ink)}.lb-chip.used{opacity:.35}
.lb-ghost{position:fixed;z-index:200;pointer-events:none;transform:translate(-50%,-120%);box-shadow:0 4px 14px rgba(0,0,0,.25)}
.sym-svg{display:block;width:100%;height:auto;color:var(--ink)}
.fig.sym-fig{background:none;padding:0;margin:0 0 6px;border-radius:0}.fig.sym-fig svg{min-width:0!important;max-width:100%!important;width:calc(90px * var(--ar));height:auto;margin:0 auto}
.sym-big .fig.sym-fig svg{width:calc(150px * var(--ar))}
.sym-big{max-width:320px;margin:10px auto 16px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}
.sym-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:14px}
.sym-card{margin:0;border:1px solid var(--line);border-radius:10px;padding:10px;background:var(--card);text-align:center;font-size:.9rem}
.rt-face{text-align:center;border:1px solid var(--line);border-radius:14px;padding:22px;margin-top:14px;background:var(--soft)}
.rt-phase{font-weight:600}.rt-clock{font-family:var(--f-mono);font-size:clamp(3rem,12vw,5.5rem);font-weight:600;color:var(--steel);line-height:1.1;margin:8px 0}
.rt-check{text-align:left;margin-top:16px}.rt-q{margin-bottom:12px}
.bdg-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:12px}
.bdg{display:flex;flex-direction:column;gap:4px;align-items:center;text-align:center;border:1.5px dashed var(--line);border-radius:12px;padding:14px;color:var(--muted)}
.bdg b{color:var(--ink)}.bdg-p{font-size:.78rem;color:var(--steel);font-weight:600}.bdg span{font-size:.85rem}.bdg-ico{font-size:2rem;line-height:1}
.bdg.on{border-style:solid;border-color:var(--tag);background:var(--warn-bg);color:var(--ink)}.bdg.on .bdg-ico{color:#C98A00}

/* subject tools */
.tool-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 14px}
.tool-tabs button{border:1.5px solid var(--line);background:var(--bg);color:inherit;border-radius:999px;padding:6px 14px;font:600 .9rem var(--f-body);cursor:pointer;min-height:40px}
.tool-tabs button[aria-selected="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.mat-tags{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:6px 14px}
.pa-f{margin:10px 0}.pa-f textarea{width:100%}
.ch-card{border:1px solid var(--line);border-left:5px solid var(--tag);border-radius:10px;padding:14px 16px;margin:10px 0;background:var(--card)}
.ch-card h3{margin:2px 0 6px}.ct-brief{font-size:1.2rem}
.sc-letter{float:right;font:700 2.4rem/1 var(--f-display);color:var(--tag)}
.persona{display:grid;gap:8px}.persona input{width:100%}
.cut-t input{width:100%;min-width:52px;padding:6px}.cut-t td:first-child input,.cut-t td:nth-child(6) input{min-width:90px}
.js-list li{margin:6px 0}
.or-wrap{max-width:300px;margin:0 auto}
.or-iso{display:block;width:100%;height:auto}
.or-iso .f-top{fill:#E9EEF1;stroke:#1B2630;stroke-width:1.1;stroke-linejoin:round}
.or-iso .f-front{fill:#9FB7C4;stroke:#1B2630;stroke-width:1.1;stroke-linejoin:round}
.or-iso .f-side{fill:#C8D6DE;stroke:#1B2630;stroke-width:1.1;stroke-linejoin:round}
.or-arrow line{stroke:var(--bad);stroke-width:2.5}.or-arrow polygon{fill:var(--bad)}.or-arrow text{fill:var(--bad);font:700 12px var(--f-body)}
.or-opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.or-opt{flex-direction:column;align-items:center}.or-opt .or-view{width:100%;max-width:150px;height:auto;color:var(--ink)}
.std-i{align-items:flex-start;padding:6px 0;border-bottom:1px solid var(--line)}.std-sum{font-size:1.1rem;margin-top:12px}
.lay-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:520px;margin:0 auto 10px}.lay-pair figure{margin:0;text-align:center;font-size:.9rem;color:var(--muted)}
.lay-svg{display:block;width:100%;height:auto;border-radius:4px}
.cw-wrap{display:grid;grid-template-columns:minmax(220px,300px) 1fr;gap:20px;align-items:center}
@media (max-width:640px){.cw-wrap{grid-template-columns:1fr}}
.cw-svg{width:100%;height:auto}.cw-seg{cursor:pointer;stroke:var(--card);stroke-width:2}.cw-seg.sel{stroke:var(--ink);stroke-width:4}.cw-seg.comp{stroke:var(--ink);stroke-width:2;stroke-dasharray:4 3}
.cw-t{font:700 14px var(--f-body);fill:var(--ink)}.cw-s{font:12px var(--f-body);fill:var(--muted)}
.cw-sw{display:inline-block;width:22px;height:22px;border-radius:5px;border:1px solid rgba(0,0,0,.2);vertical-align:middle;margin-right:3px}
.fc-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:18px}
@media (max-width:760px){.fc-grid{grid-template-columns:1fr}}
.fc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px;counter-reset:fc}
.fc-s{display:flex;align-items:center;gap:10px;flex-wrap:wrap;counter-increment:fc}
.fc-s::before{content:counter(fc);font:600 .8rem var(--f-mono);color:var(--muted);width:20px;text-align:right}
.fc-shape{display:inline-block;min-width:150px;text-align:center;padding:7px 14px;border:2px solid var(--ink);background:var(--card);font-weight:600}
.fc-start .fc-shape,.fc-stop .fc-shape{border-radius:999px}
.fc-out .fc-shape{transform:skewX(-14deg)}
.fc-if .fc-shape,.fc-loop .fc-shape{clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);padding:14px 26px;background:var(--warn-bg);border:0}
.fc-goto .fc-shape{border-style:dashed}
.fc-s.now .fc-shape{background:var(--tag);color:var(--tag-ink)}
.fc-ed{display:flex;gap:6px;align-items:center;flex-wrap:wrap;font-size:.9rem}.fc-ed select,.fc-ed input{padding:4px 6px!important;width:auto}
.fc-board{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--soft)}
.fc-leds{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}
.fc-led{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:.8rem;text-align:center}.fc-led small{color:var(--muted)}
.fc-led span{width:34px;height:34px;border-radius:50%;background:#55606A;border:2px solid #333}
#fc-p7.on span{background:#FF3B30;box-shadow:0 0 14px #FF3B30}#fc-p6.on span{background:#FFB300;box-shadow:0 0 14px #FFB300}#fc-p5.on span{background:#2ECC71;box-shadow:0 0 14px #2ECC71}#fc-p4.on span{background:#4AA3FF;box-shadow:0 0 14px #4AA3FF}
.fc-sw[aria-pressed="true"]{background:var(--steel);color:var(--steel-ink)}
.fc-code{background:var(--soft);padding:10px;border-radius:8px;font-family:var(--f-mono);font-size:.85rem;overflow:auto}
.fr-svg{width:100%;max-width:620px;height:auto;display:block}
.fr-m{stroke-width:5;stroke-linecap:round}.fr-tie{stroke:#2B6CB0}.fr-strut{stroke:#C0392B}.fr-zero{stroke:#999;stroke-dasharray:6 4}
.fr-lab{font:700 13px var(--f-body);fill:var(--ink);paint-order:stroke;stroke:var(--card);stroke-width:4}
.fr-n{fill:var(--card);stroke:var(--ink);stroke-width:2}.fr-nl{font:700 13px var(--f-body);fill:var(--muted)}
.fr-load{stroke:var(--ink);stroke-width:2}.fr-loadh{fill:var(--ink)}.fr-sup{fill:none;stroke:var(--ink);stroke-width:2}.fr-wall{stroke:var(--ink);stroke-width:4}
.fr-key{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.fr-k{display:inline-block;width:26px;height:5px;border-radius:3px}.fr-k.tie{background:#2B6CB0}.fr-k.strut{background:#C0392B}

/* learning intentions & success criteria */
.lisc-box{border:1px solid var(--line);border-left:5px solid var(--steel);border-radius:10px;padding:10px 14px;margin:0 0 16px;background:var(--card)}
.lisc-box summary{cursor:pointer;font-weight:700;font-family:var(--f-display);font-size:1.05rem}
.lisc{display:grid;grid-template-columns:1fr 1fr;gap:6px 22px;margin-top:8px}
@media (max-width:700px){.lisc{grid-template-columns:1fr}}
.lisc h4{margin:4px 0;font-family:var(--f-display);font-size:1rem}.lisc h4 small{font:600 .7rem var(--f-meta);color:var(--muted);letter-spacing:.06em;margin-left:4px}
.lisc p{margin:4px 0}.lisc ul{margin:2px 0 6px;padding-left:1.2em}.lisc li{margin:3px 0}
.li-g{font-weight:600;color:var(--steel)}
.sc-list{list-style:none;padding-left:0!important}.sc-list li{padding-left:1.4em;position:relative}.sc-list li::before{content:"✓";position:absolute;left:0;color:var(--good);font-weight:700}
.lisc-foot{margin:6px 0 0;font-size:.9rem}
.tc-liprev{border:1px dashed var(--line);border-radius:8px;padding:8px 12px;background:var(--bg)}
.lisc-proj .lisc{font-size:clamp(1.1rem,2.2vw,1.9rem);gap:10px 48px}.lisc-proj .lisc h4{font-size:1.3em;color:var(--tag)}.lisc-proj .lisc h4 small{color:#B9C4CB}
.lisc-proj .sc-list li::before{display:none}.lisc-proj .sc-list li{padding-left:0}.lisc-proj .sc-list input{width:1em;height:1em;accent-color:#5CC796;vertical-align:middle;margin-right:.3em}
.lisc-proj .li-g{color:#9CC3D5}
@media print{.lisc-box{border-left-width:2px}.lisc-box summary{list-style:none}}

/* lesson flow, pose-pause-pounce-bounce, faded examples, quiz help, read aloud, concept map */
.ppp{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.ppp .btn{padding:.35em .8em}
.ppp-out{font-family:var(--f-display);font-weight:700;font-size:clamp(1rem,2vw,1.6rem);color:var(--tag);margin-left:6px}.ppp-out.think{color:#9CC3D5}
.lp-body{display:flex;flex-direction:column;gap:14px;height:100%;max-width:1400px;margin:0 auto;width:100%}
.lp-dots{display:flex;gap:8px;justify-content:center}.lp-dots span{width:32px;height:32px;border-radius:50%;border:2px solid #3A4852;display:inline-flex;align-items:center;justify-content:center;font:700 .9rem var(--f-mono);color:#B9C4CB}
.lp-dots span.on{background:var(--tag);border-color:var(--tag);color:#1B2630}.lp-dots span.done{border-color:#5CC796;color:#5CC796}
.lp-main{flex:1;overflow:auto;display:flex;flex-direction:column}.lp-inner{margin:auto 0;display:flex;flex-direction:column;gap:14px}
.lp-h{font-size:clamp(1.6rem,3.4vw,3rem)}
.lp-list{font-size:clamp(1.1rem,2.3vw,2rem);line-height:1.35;margin:0;padding-left:1.4em}.lp-list li{margin:.35em 0}
.lp-heads{columns:2;column-gap:40px}@media (max-width:700px){.lp-heads{columns:1}}
.lp-tag{font:600 .55em var(--f-meta);text-transform:uppercase;letter-spacing:.06em;color:#9CC3D5;border:1px solid #3A4852;border-radius:4px;padding:1px 6px;vertical-align:middle;margin-right:6px}
.lp-ans{color:#5CC796;font-size:.8em;margin-top:.2em}
.lp-q{font-family:var(--f-display);font-weight:600;font-size:clamp(1.5rem,3.2vw,2.8rem);line-height:1.2}.lp-q small{display:block;font:400 .5em var(--f-body);color:#B9C4CB;margin-bottom:.4em}.lp-q .lp-m{display:inline}
.lp-act{display:flex;gap:10px;flex-wrap:wrap}
.lp-opts{display:flex;gap:10px 22px;flex-wrap:wrap;font-size:.8em;margin-top:.3em}.lp-opts b{color:var(--tag);font-family:var(--f-mono)}.lp-opts .right{color:#5CC796;font-weight:700}.lp-opts .dim{opacity:.4}
.fd-stage{display:flex;gap:6px;margin-bottom:6px}.fd-stage span{border:1.5px solid var(--line);border-radius:999px;padding:3px 12px;font-weight:600;font-size:.9rem}.fd-stage span.on{background:var(--steel);color:var(--steel-ink);border-color:var(--steel)}.fd-stage span.done{border-color:var(--good);color:var(--good)}
.fd-gap{color:var(--muted);font-style:italic}
.qz-help{margin:8px 0}.opt.struck{opacity:.35;text-decoration:line-through}
.qz-stretch{margin:8px 0 0;padding:8px 12px;border-left:4px solid var(--tag);background:var(--warn-bg);border-radius:6px}
.sec.reading{outline:3px solid var(--tag);outline-offset:6px;border-radius:4px}
.cm-wrap{border:1px solid var(--line);border-radius:12px;background:var(--card);margin-top:8px;touch-action:none}
.cm-svg{display:block;width:100%;height:auto;color:var(--ink);user-select:none;-webkit-user-select:none}
.cm-node{cursor:grab}.cm-node rect{fill:var(--warn-bg);stroke:var(--ink);stroke-width:1.5}.cm-node text{font:600 14px var(--f-body);fill:var(--ink);pointer-events:none}
.cm-node.sel rect{fill:var(--tag);stroke-width:3}
.cm-ln{stroke:currentColor;stroke-width:1.6}.cm-lt{font:italic 13px var(--f-body);fill:var(--steel);cursor:pointer;paint-order:stroke;stroke:var(--card);stroke-width:4}
.cm-link{display:flex;gap:8px;align-items:flex-end;flex-wrap:wrap;margin-top:10px}
/* show-me boards */
.tc-new{font-family:var(--f-body);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;background:var(--tag);color:var(--tag-ink);border-radius:999px;padding:2px 8px;vertical-align:middle}
.smb{gap:12px;padding:clamp(10px,2vw,24px)}
.smb-top{display:flex;align-items:center;gap:12px 20px;flex-wrap:wrap;position:relative;padding-right:56px}
.smb-x{position:absolute;top:0;right:0;width:44px;height:44px;padding:0;display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem}
.smb .smb-endbtn{border-color:#8A4A43;color:#F6B4AB}
.smb-join{display:flex;align-items:center;gap:14px}
.smb-qr{width:78px;height:78px;background:#fff;border:0;border-radius:8px;padding:5px;cursor:zoom-in}.smb-qr svg{width:100%;height:100%;display:block}
.smb-url{font-family:var(--f-meta);color:#B9C4CB;font-size:clamp(.9rem,1.3vw,1.15rem)}
.smb-code{font-family:var(--f-display);font-weight:700;font-size:clamp(2.2rem,4.5vw,3.6rem);letter-spacing:.18em;color:var(--tag);line-height:1}
.smb-stat{display:flex;flex-direction:column;gap:2px;font-family:var(--f-meta);color:#B9C4CB;margin-right:auto}
.smb-ctl{flex:1 1 100%}
@media (min-width:1100px){.smb-ctl{flex:0 1 auto}}
.smb-stat #smb-count{font-size:1.3rem;color:#F3F5F4;font-weight:600}
.smb-conn.off{color:#F08A7E}
.smb-ctl{display:flex;gap:8px;flex-wrap:wrap}
.smb .btn[aria-pressed="true"],.smb .btn[aria-expanded="true"]{background:var(--tag);color:#1B2630;border-color:var(--tag)}
.smb-pushp{background:#18232A;border:1px solid #3A4852;border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:8px}
.smb-pushp .field{color:#B9C4CB;display:flex;flex-direction:column;gap:4px}.smb-pushp textarea,.smb-pushp select{background:#0E1418;color:#F3F5F4;border:1.5px solid #3A4852;border-radius:8px;width:100%;padding:8px;font:inherit}
.smb-pushp select{max-width:420px}.smb textarea,.smb select{font-size:16px}
html,body{overflow-x:clip}
.proj{max-width:100vw;overflow-x:hidden}.smb-pushp .tc-row{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end}.smb-pushp .tc-row .field{flex:1 1 280px}
.smb-sent{margin:0;color:#B9C4CB;font-size:.92rem}.smb-sent:empty{display:none}
.smb-grid{flex:1;overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;align-content:start}
.smb-tile{position:relative;background:#fff;border-radius:8px;overflow:hidden;cursor:zoom-in;border:3px solid transparent;padding:0;display:block;width:100%}
.smb-tile canvas{display:block;width:100%;height:auto;aspect-ratio:4/3}
.smb-tile .nm{position:absolute;left:0;right:0;bottom:0;background:rgba(14,20,24,.82);color:#F3F5F4;font:600 .95rem/1.2 var(--f-body);padding:5px 8px;text-align:left;display:flex;gap:6px}
.smb-tile.hand{border-color:var(--tag)}.smb-tile .hd{display:none;margin-left:auto}.smb-tile.hand .hd{display:inline}
.smb-tile.gone{opacity:.45}
.smb-to{display:flex;gap:6px;flex-wrap:wrap}.smb-to .btn[aria-pressed="true"]{background:var(--tag);color:#2A1F00;border-color:var(--tag)}
.smb-pick{display:flex;flex-wrap:wrap;gap:6px}.smb-pickn{color:#B9C4CB}
.smb-chip{background:#0E1418;color:#F3F5F4;border:1.5px solid #3A4852;border-radius:999px;padding:6px 12px;font:inherit;font-size:.95rem;cursor:pointer}
.smb-chip[aria-pressed="true"]{background:var(--tag);color:#2A1F00;border-color:var(--tag);font-weight:600}
.smb-lower{background:none;border:0;padding:0;color:#F3F5F4;text-decoration:underline;text-underline-offset:3px;cursor:pointer;font:inherit;font-size:.9rem;text-align:left}
.smb-tile .st{display:none}.smb-tile.stretch .st{display:inline}.smb-tile.stretch{border-color:#7FB8D4}.smb-tile.hand{border-color:var(--tag)}
.smb-tile .hd{cursor:pointer;padding:0 4px;border-radius:4px}.smb-tile .hd:hover{background:rgba(255,255,255,.18)}
.smb-stretchline{margin:0;color:#F2D27A;font-size:.92rem}.smb-stretchline:empty{display:none}

.smb.anon .smb-tile .nm .n,.smb.anon #smb-bigname{visibility:hidden}
.smb-empty{grid-column:1/-1;text-align:center;color:#B9C4CB;font-size:clamp(1.1rem,2vw,1.6rem);margin-top:8vh}
.smb-big,.smb-qrbig{position:absolute;inset:0;background:#0E1418;display:flex;flex-direction:column;gap:10px;padding:clamp(10px,2vw,24px);z-index:2}
.smb-bighead{display:flex;align-items:center;gap:10px;font:600 1.4rem var(--f-display)}
#smb-bigc{flex:1;min-height:0;width:100%;object-fit:contain}
.smb-qrbig{align-items:center;justify-content:center;cursor:zoom-out}
.smb-qrbox{background:#fff;padding:18px;border-radius:16px;width:min(62vh,80vw)}.smb-qrbox svg{display:block;width:100%;height:auto}
.smb-codebig{font-size:clamp(3rem,9vw,7rem)}
@media print{.smb{display:none!important}}

.tc-card textarea{width:100%;font:inherit;border:1.5px solid var(--line);border-radius:8px;padding:8px;background:var(--card);color:inherit;resize:vertical}
.tc-hr{border:0;border-top:1px solid var(--line);margin:4px 0;width:100%}
.tc-qrbox{display:flex;justify-content:center;min-height:120px;align-items:center}.tc-qrbox svg{width:160px;height:160px;background:#fff;padding:8px;border-radius:6px}
.proj-big{font-family:var(--f-display);font-weight:700;font-size:clamp(3rem,12vw,11rem);text-align:center;line-height:1}
.proj-sub{text-align:center;color:#B9C4CB;font-size:clamp(1rem,2vw,1.6rem)}
.proj-gap{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:clamp(1rem,2vw,1.6rem);color:#B9C4CB}.proj-gap input{width:5em;font:inherit;padding:4px 8px;border-radius:8px;border:2px solid #3A4852;background:#1E2A32;color:#fff}
.proj-sum{width:100%;border-collapse:collapse;font-size:clamp(1rem,2vw,1.6rem)}.proj-sum td,.proj-sum th{padding:8px 12px;border-bottom:1px solid #3A4852;text-align:left}.proj-sum .bar{display:inline-block;height:14px;border-radius:7px;background:#5CC796;vertical-align:middle}
.proj-fig{background:#fff;color:#1B2630;border-radius:12px;padding:clamp(10px,2vw,24px);max-height:70vh;overflow:auto}.proj-fig svg{width:100%;height:auto;max-height:64vh;display:block;color:#1B2630}
.proj-fig figcaption{display:none}.proj-fig .fig-scroll::after{display:none}.proj-fig .fig{background:#fff;margin:0}
.proj-fig .lbl-hide{fill:transparent!important;cursor:pointer}.proj-fig .lbl-box{fill:#F0B429;cursor:pointer}
.proj-simwrap{background:var(--card);color:var(--ink);border-radius:12px;padding:12px;max-height:76vh;overflow:auto;font-size:1.15rem}.proj-simwrap .sim{border:0;margin:0}
.proj-conf{display:flex;justify-content:center;gap:clamp(20px,6vw,90px);font-size:clamp(3rem,10vw,8rem)}.proj-conf div{text-align:center}.proj-conf small{display:block;font-size:clamp(.9rem,1.6vw,1.4rem);color:#B9C4CB}
.tc-print{display:none}
@media print{
  body.printing-tc > *:not(.tc-print){display:none!important}
  body.printing-tc .tc-print{display:block!important;color:#000;font-size:11pt}
  .tc-print .lines{height:4.5em;border-bottom:1px solid #999;margin-bottom:8px}
  .tc-print h1{font-size:18pt;margin:0 0 4px}.tc-print h2{font-size:13pt;margin:14px 0 6px;border-bottom:1.5px solid #000;padding-bottom:2px}
  .tc-print .meta{color:#444;font-size:9.5pt;margin-bottom:8px}
  .tc-print ol li,.tc-print ul li{margin:4px 0}.tc-print .opts{margin:2px 0 0 0;padding-left:1.4em;list-style:upper-alpha}
  .tc-print .lines{border-bottom:1px solid #999;height:22px}.tc-print .pb{break-before:page}
  .tc-print table{border-collapse:collapse;width:100%}.tc-print td,.tc-print th{border:1px solid #999;padding:4px 6px;vertical-align:top;text-align:left}
  .tc-print .qr svg{width:3.2cm;height:3.2cm}.tc-print .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .tc-print .q{break-inside:avoid;margin-bottom:8px}
}
.lvl-wrap{display:inline-flex;flex-direction:column;align-items:center;gap:4px}
.tc-head{display:inline-flex;align-items:center;justify-content:center;gap:5px;background:none;border:1px solid rgba(241,243,241,.45);border-radius:999px;color:inherit;font-family:var(--f-body);font-weight:600;font-size:.78rem;line-height:1;cursor:pointer;padding:3px 12px;min-height:24px;white-space:nowrap;opacity:.85}
.tc-head svg{width:13px;height:13px}
.tc-head:hover{opacity:1;border-color:currentColor}
.tc-head[aria-current="page"]{opacity:1;color:var(--tag);border-color:var(--tag)}
body.cu .tc-head{display:none}
@media (max-width:640px){.tc-head{font-size:.72rem;padding:2px 10px;min-height:22px}.tc-head svg{width:12px;height:12px}.lvl-wrap{gap:3px}}
.proj-sum td,.proj-sum th{padding:5px 12px}
.fc-state{display:inline-block;margin-left:6px;font-size:.78rem;font-weight:700;padding:1px 8px;border-radius:999px;background:var(--soft)}
.fc-state.due{background:var(--bad-bg);color:var(--bad)}.fc-state.ok{background:var(--good-bg);color:var(--good)}
.fc-ask{margin:0;font-size:.92rem;color:var(--muted)}
.fc-btns .fc-no{border-color:var(--bad);color:var(--bad)}.fc-btns .btn{min-width:120px}.fc-btns #fc-prev{min-width:0}
@media (max-width:640px){.fc-btns{flex-wrap:nowrap;width:100%;max-width:420px}.fc-btns .btn{min-width:0;flex:1}.fc-btns #fc-prev{flex:0 0 48px}#view-cards .field,#view-cards select{max-width:100%;min-width:0}#view-cards .panel-head .row{width:100%}}
.fc-stats{display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:center;font-size:.92rem}
.fc-dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;vertical-align:baseline}
.fc-dot.due{background:var(--bad)}.fc-dot.new{background:var(--line)}.fc-dot.ok{background:var(--good)}
.fc-how{font-size:.85rem;max-width:52ch;text-align:center;margin:0}
.fc-count{font-family:var(--f-meta);font-size:.85rem;color:var(--muted)}
@media (prefers-reduced-motion: reduce){.card3d .inner{transition:none}}

/* quiz */
.q-box{max-width:720px}
.q-meta{display:flex;justify-content:space-between;font-family:var(--f-meta);font-size:.8rem;color:var(--muted);margin-bottom:6px}
.progress{height:6px;background:var(--soft);border-radius:3px;overflow:hidden;margin-bottom:18px}
.progress i{display:block;height:100%;background:var(--tag);transition:width .3s}
.q-text{font-size:1.3rem;font-weight:600;margin:0 0 14px}
.opts{display:grid;gap:8px}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:left;background:var(--card);border:1.5px solid var(--line);border-radius:var(--r);padding:11px 14px;cursor:pointer}
.opt b{font-family:var(--f-meta);font-weight:500;color:var(--muted)}
.opt:hover:not(:disabled){border-color:var(--steel)}
.opt.right{border-color:var(--good);background:var(--good-bg)}
.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}
.opt:disabled{cursor:default}
.feedback{margin-top:14px;padding:12px 14px;border-radius:var(--r);border-left:4px solid var(--good);background:var(--good-bg)}
.feedback.no{border-left-color:var(--bad);background:var(--bad-bg)}
.score-big{font-family:var(--f-display);font-size:4rem;font-weight:700;line-height:1}
.review li{margin:.5em 0}
.note{padding:10px 14px;border-radius:var(--r);background:var(--warn-bg);font-size:.95rem}

/* exam */
.eq{border-top:1px solid var(--line);padding-block:18px;display:grid;gap:10px}
.eq:first-of-type{border-top:0}
.eq-head{display:flex;gap:12px;align-items:flex-start;justify-content:space-between}
.eq-q{font-weight:600;font-size:1.05rem;max-width:70ch}
.marks{font-family:var(--f-meta);font-size:.8rem;white-space:nowrap;border:1.5px solid var(--ink);border-radius:3px;padding:2px 7px}
.eq textarea{width:100%;min-height:90px;resize:vertical}
.mi{background:var(--soft);border-radius:var(--r);padding:10px 16px}
.mi h4{margin:4px 0;font-family:var(--f-display);font-size:1.05rem;letter-spacing:.04em;text-transform:uppercase}
.mi ul{margin:.3em 0;padding-left:1.2em}

/* results */
.res-grid{display:grid;gap:22px}
.scroll{overflow-x:auto}
table.res{border-collapse:collapse;font-size:.9rem;font-variant-numeric:tabular-nums}
table.res th,table.res td{border-bottom:1px solid var(--line);padding:7px 8px;text-align:center;white-space:nowrap}
table.res th{font-family:var(--f-display);font-weight:600;font-size:.95rem;letter-spacing:.02em}
table.res th:first-child,table.res td:first-child{text-align:left;position:sticky;left:0;background:var(--card)}
.pct{display:inline-block;min-width:44px;padding:2px 6px;border-radius:3px;font-family:var(--f-meta);font-size:.8rem}
.pct.g{background:var(--good-bg);color:var(--good)}
.pct.m{background:var(--warn-bg)}
.pct.b{background:var(--bad-bg);color:var(--bad)}
.empty{color:var(--muted);font-style:italic}
.toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:var(--r);font-weight:600;z-index:20}


/* figures */
.fig{margin:16px 0 8px;padding:14px;background:var(--soft);border-radius:var(--r)}
.fig-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media (max-width:560px){.fig-scroll::after{content:"← swipe to see the whole diagram →";display:block;position:sticky;left:0;width:calc(100vw - 90px);text-align:center;font-size:.75rem;color:var(--muted);padding-top:6px}}
.fig svg{display:block;width:100%;min-width:500px;max-width:640px;height:auto;margin:0 auto;color:var(--ink);font-family:var(--f-body)}
.fig.img-fig img{display:block;max-width:min(100%,480px);height:auto;margin:0 auto;background:#fff;border-radius:6px;padding:6px}
.fig figcaption{font-size:.9rem;color:var(--muted);margin-top:8px;max-width:68ch}
.fig svg{stroke-width:1.5}
.fig .ln{stroke:currentColor}
.fig line.ln,.fig path.ln:not(.soft){fill:none}
.fig .soft{fill:var(--card)}
.fig .acc-s{stroke:var(--steel);fill:none}
.fig .accf{fill:var(--steel)}
.fig .hl{fill:var(--tag)}
.fig .bgf{fill:var(--soft)}
.fig .inkf{fill:currentColor}
.fig .blue{fill:var(--steel);fill-opacity:.14}
.fig .mk{fill:currentColor}
.fig .g{stroke-width:1}
.fig .t{font-size:13px;fill:currentColor}
.fig .t.s{font-size:11.5px;fill:var(--muted)}
.fig .t.b{font-weight:700;font-size:13.5px}
.fig .acc-t{fill:var(--steel);font-weight:600}
.hnote{border-left:3px solid var(--tag);padding-left:10px}
body[data-level="n5"] .hnote{display:none}
body[data-level="n5"] .honly{display:none}
.vids li{margin:.35em 0}
.vids a{color:var(--steel);font-weight:600}
.fb-btn{margin-top:10px;background:none;border:1.5px dashed var(--muted);color:var(--muted);border-radius:var(--r);padding:8px 12px;cursor:pointer;font-size:.9rem;min-height:44px}
.fb-btn:hover{border-color:var(--steel);color:var(--steel)}
.eq-ctx{margin:.3em 0;color:var(--muted);font-style:italic;max-width:70ch}
.seen{font-family:var(--f-meta);font-size:.75rem;color:var(--muted)}
.mi h4.z{color:var(--bad)}
details.tips{background:var(--soft);border-radius:var(--r);padding:10px 16px;margin-bottom:12px}
details.tips summary{cursor:pointer;font-weight:600;min-height:32px;display:flex;align-items:center}
.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:8px}
.tips-grid h4{font-family:var(--f-display);font-size:1.1rem;margin:0 0 6px;letter-spacing:.03em}
.tips-grid dt{font-weight:700}.tips-grid dd{margin:0 0 6px}
.tips-grid ul{margin:0;padding-left:1.2em}
/* touch + iPad */
.btn,.opt,.rail button,.tabs button,.level button,select,input[type=text],.rail a,.tabs a,.level a{min-height:44px}
.face{-webkit-backface-visibility:hidden}
.card3d .inner{-webkit-transform-style:preserve-3d}
@media (hover:none){.opt:hover:not(:disabled){border-color:var(--line)}}
@media (min-width:821px) and (max-width:1100px){.notes-layout{grid-template-columns:210px minmax(0,1fr);gap:20px}}

.model{border:1.5px solid var(--good);border-radius:var(--r);padding:10px 16px}
.model h4{margin:4px 0;font-family:var(--f-display);font-size:1.05rem;letter-spacing:.04em;text-transform:uppercase}
.model h4.z{color:var(--bad)}
.model .good{max-width:72ch}
.model .tick{display:inline-block;font-family:var(--f-meta);font-size:.72rem;background:var(--good-bg);color:var(--good);border-radius:3px;padding:0 4px;margin-left:2px}
.model .weak{font-style:italic;color:var(--muted);margin-bottom:2px}
.model .why{font-size:.92rem}
.mk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin:14px 0 6px}
.mk-card{border:1.5px solid var(--ink);border-top:6px solid var(--bad);border-radius:var(--r);padding:12px 14px;background:var(--card)}
.mk-card h3{font-size:1.25rem;margin-bottom:4px}
.mk-card p{margin:.2em 0 .5em;font-size:.95rem}
.mk-list{list-style:none;margin:6px 0 0;padding:0}
.mk-list li{padding:10px 0;border-top:1px dashed var(--line);display:grid;gap:4px}
.mk-bad b{color:var(--bad)}.mk-good b{color:var(--good)}
.mk-box{margin-top:18px;background:var(--bad-bg);border-radius:var(--r);padding:12px 16px}
.mk-box h3{font-size:1.25rem;margin-bottom:4px}
.mk-box ul{margin:0;padding-left:1.2em}.mk-box li{margin:.4em 0}
/* checklist */
#ck-filter{border-color:var(--line)}
#ck-filter button{font-size:.95rem}
.ck-summary{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.ck-stat{padding:6px 12px;border-radius:999px;background:var(--soft);font-size:.9rem}
.ck-stat b{font-family:var(--f-meta)}
.ck-stat.r3,.ck .b3[aria-pressed="true"]{background:var(--good-bg);color:var(--good)}
.ck-stat.r2{background:var(--warn-bg)}
.ck-stat.r1{background:var(--bad-bg);color:var(--bad)}
.ck-area{font-size:1.1rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:22px 0 8px}
.ck-topic{border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;margin-bottom:12px}
.ck-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.ck-head h3{font-size:1.35rem}
.ck-head .btn{padding:6px 12px;font-size:.9rem}
.ck-bar{display:flex;height:8px;border-radius:4px;background:var(--soft);overflow:hidden;margin:8px 0 6px}
.ck-bar i{display:block;height:100%}
.ck-bar .r3{background:var(--good)}.ck-bar .r2{background:var(--tag)}.ck-bar .r1{background:var(--bad)}
.ck-items{list-style:none;margin:0;padding:0}
.ck-items li{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 14px;padding:9px 0;border-top:1px dashed var(--line)}
.ck-text{flex:1 1 280px;min-width:0}
.ck-btns{display:flex;gap:4px;flex-wrap:wrap}
.ck-topic.on{box-shadow:inset 5px 0 0 var(--tag)}
.qz-reset{margin-top:22px;padding-top:12px;border-top:1px dashed var(--line)}
.qz-reset .btn{padding:6px 12px;font-size:.9rem}
.ck-steps{margin:6px 0 12px;padding-left:1.4em;display:grid;gap:4px}
.ck-steps li{padding-left:4px}
.ck-dot{display:inline-block;width:.7em;height:.7em;border-radius:50%;margin:0 3px 0 1px;vertical-align:baseline}
.ck-dot.r1{background:var(--bad)}.ck-dot.r2{background:var(--tag)}
.ck-add{min-height:40px;padding:6px 12px;border-radius:999px;border:1.5px dashed var(--line);background:none;color:inherit;font:inherit;font-size:.9rem;font-weight:600;cursor:pointer}
.ck-add[aria-pressed="true"]{border:1.5px solid var(--tag);background:var(--warn-bg);color:var(--ink)}
.ck-dock{position:sticky;bottom:calc(10px + env(safe-area-inset-bottom,0px));z-index:5;display:flex;align-items:center;gap:12px;justify-content:space-between;background:var(--ink);color:var(--bg);border-radius:var(--r);padding:10px 12px 10px 16px;margin-top:14px;box-shadow:0 6px 20px rgba(0,0,0,.25);border-left:5px solid var(--tag)}
.ck-dock-info{display:flex;flex-direction:column;min-width:0}
.ck-dock-info span{font-size:.88rem;opacity:.8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ck-dock .btn.primary{background:var(--tag);color:#1B2630;border-color:var(--tag);flex:none}
.ck-sheet{border:0;border-radius:12px;padding:0;width:min(560px,calc(100vw - 32px));background:var(--card);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.ck-sheet::backdrop{background:rgba(15,22,28,.55)}
.ck-sheet-in{padding:18px 20px 20px}
.ck-sheet-top{display:flex;justify-content:space-between;align-items:center}
.ck-sheet-top h3{font-size:1.5rem}
.ck-chips{display:flex;flex-wrap:wrap;gap:6px}
.ck-chip{background:var(--warn-bg);border:1px solid var(--tag);border-radius:999px;padding:3px 10px;font-size:.88rem;color:var(--ink)}
.ck-bulk .btn{padding:6px 12px;font-size:.88rem}
.ck-opts{display:grid;gap:8px}
.ck-opt{display:flex;align-items:center;gap:14px;text-align:left;width:100%;min-height:60px;padding:10px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:inherit;font:inherit;cursor:pointer}
.ck-opt:hover:not(:disabled){border-color:var(--steel,#245A73)}
.ck-opt:disabled{opacity:.45;cursor:not-allowed}
.ck-opt small{display:block;color:var(--muted);font-size:.86rem}
.muted{color:var(--muted)}
.pr-how{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin:12px 0 6px}
.pr-how>div{border:1px solid var(--line);border-radius:var(--r);padding:10px 12px;background:var(--bg)}
.pr-how b{display:block;margin-top:6px}.pr-how small{color:var(--muted);font-size:.88rem;display:block;margin-top:2px}
.pr-tag{display:inline-block;font-family:var(--f-display);font-weight:700;letter-spacing:.06em;padding:2px 10px;border-radius:4px;font-size:.95rem}
.pr-tag.s{background:var(--steel);color:var(--steel-ink)}.pr-tag.y{background:var(--tag);color:var(--tag-ink)}.pr-tag.k{background:var(--ink);color:var(--bg)}
.pr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px}
.pr-item{border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;display:flex;flex-direction:column;justify-content:space-between;gap:10px}
.pr-item h3{font-size:1.25rem}
.pr-item .btn{text-decoration:none;padding:6px 14px;display:inline-flex;align-items:center}
.pr-item .btn:not(.primary){color:var(--ink)}
.ck-ico{color:var(--steel);display:flex;flex:none}
[hidden]{display:none!important}
/* groups + hubs */
.subnav{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:2px 0 12px;margin-top:-4px}
.subnav::-webkit-scrollbar{display:none}
.subnav button,
.subnav a{flex:none;border:1.5px solid var(--line);background:var(--card);color:inherit;border-radius:999px;padding:6px 14px;font:inherit;font-size:.92rem;font-weight:600;cursor:pointer;min-height:40px;white-space:nowrap}
.subnav button[aria-current="page"],
.subnav a[aria-current="page"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.hub{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:12px}
.hub-card{display:flex;flex-direction:column;gap:6px;text-align:left;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:inherit;font:inherit;padding:14px 16px;cursor:pointer;min-height:120px}
.hub-card:hover{border-color:var(--steel)}
.hub-card h3{font-size:1.4rem;display:flex;align-items:center;gap:10px}
.hub-card p{margin:0;color:var(--muted);font-size:.93rem}
.hub-card .hub-ico{color:var(--steel);display:flex}
.hub-card.feature{border-color:var(--tag);background:var(--warn-bg);grid-column:1/-1}
.hub-card .hub-meta{margin-top:auto;font-family:var(--f-meta);font-size:.8rem;color:var(--muted)}
/* order */
.or-list{list-style:none;margin:10px 0;padding:0;display:grid;gap:6px}
.or-list li{display:flex;align-items:center;gap:10px;border:1.5px solid var(--line);border-radius:8px;padding:8px 8px 8px 12px;background:var(--card)}
.or-list li .n{font-family:var(--f-meta);color:var(--muted);width:1.4em;flex:none}
.or-list li .tx{flex:1;min-width:0}
.or-list li .mv{display:flex;gap:4px;flex:none}
.or-list li .mv button{width:44px;height:44px;border:1.5px solid var(--line);border-radius:8px;background:var(--bg);color:inherit;font-size:1.1rem;cursor:pointer}
.or-list li .mv button:disabled{opacity:.3}
.or-list li.ok{border-color:var(--good);background:var(--good-bg)}
.or-list li.no{border-color:var(--bad);background:var(--bad-bg)}
.or-list li.moved{animation:flash .5s}
@keyframes flash{from{background:var(--warn-bg)}}
/* score + examiner */
.sc-q{color:var(--muted);font-size:.95rem;margin:4px 0}
.sc-a{font-size:1.25rem;line-height:1.45;border-left:4px solid var(--steel);padding:10px 14px;background:var(--bg);border-radius:0 8px 8px 0;margin:10px 0 14px}
.sc-btns{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sc-btns button{min-height:64px;border-radius:10px;border:2px solid var(--line);background:var(--card);color:inherit;font:inherit;font-size:1.1rem;font-weight:700;cursor:pointer}
.sc-btns .yes{border-color:var(--good);color:var(--good)}
.sc-btns .no{border-color:var(--bad);color:var(--bad)}
.script{font-size:1.05rem;line-height:1.55;background:var(--bg);border:1px dashed var(--line);border-radius:8px;padding:12px 14px;margin:8px 0}
.mkbtns{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.mkbtns button{width:52px;height:52px;border-radius:10px;border:1.5px solid var(--line);background:var(--card);color:inherit;font-family:var(--f-meta);font-size:1.2rem;font-weight:700;cursor:pointer}
.mkbtns button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.mi-list{margin:6px 0;padding-left:1.2em}
.mi-list li{margin:2px 0}
.tally{font-family:var(--f-meta);font-size:.85rem;color:var(--muted)}
/* home */
.brand{background:none;border:0;padding:0;color:inherit;font:inherit;text-align:left;cursor:pointer;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}

body.home .tabs button:not(.tab-home),

body.home .tabs a:not(.tab-home){display:none}
.tabs .tab-home{opacity:.85}
.home-hero{padding:18px 4px 8px}
.home-hero h2{font-size:clamp(2rem,4.5vw,3rem);line-height:1.05;margin:4px 0 8px}
.home-hero p{max-width:60ch;color:var(--muted);font-size:1.05rem}
.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin:14px 0 24px}
.home-card{display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:left;background:var(--card);border:1.5px solid var(--line);border-top:5px solid var(--tag);border-radius:12px;padding:16px 18px;color:inherit;font:inherit;cursor:pointer;min-height:180px}
.home-card:hover{border-color:var(--steel);border-top-color:var(--tag)}
.home-card h3{font-size:1.55rem;line-height:1.1}
.home-card p{margin:0;color:var(--muted);font-size:.95rem}
.home-ico{color:var(--steel)}
.home-lv{font-family:var(--f-meta);font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.home-go{margin-top:auto;font-weight:700;color:var(--steel)}
.home-card.soon{border-top-color:var(--line);cursor:default}
.home-card.soon .home-go{color:var(--muted);font-weight:600}
.home-card.soon h3,.home-card.soon .home-ico{opacity:.6}
pre.code{font-family:var(--f-meta);font-size:.85rem;background:var(--soft);border-radius:var(--r);padding:10px 12px;overflow-x:auto;line-height:1.5}
/* folio */
.fo-note{background:var(--warn-bg);border-left:4px solid var(--tag);border-radius:0 var(--r) var(--r) 0;padding:10px 14px;margin:6px 0 10px;font-size:.95rem}
.fo-map{display:flex;gap:8px;overflow-x:auto;padding:4px 0 12px;scrollbar-width:thin}
.fo-map button{flex:none;display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;width:150px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:inherit;font:inherit;padding:8px 10px;cursor:pointer}
.fo-map button[aria-current]{border-color:var(--ink);background:var(--ink);color:var(--bg)}
.fo-p{font-family:var(--f-meta);font-size:.78rem;opacity:.75}
.fo-t{font-weight:700;font-size:.92rem;line-height:1.2}
.fo-m{font-family:var(--f-meta);font-size:.76rem;opacity:.75;margin-top:auto}
.fo-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap;border-top:4px solid var(--tag);padding-top:12px;margin-top:4px}
.fo-title{font-size:1.9rem}
.fo-skills{display:flex;flex-wrap:wrap;gap:6px}
.fo-skills .chip{font-size:.85rem}
.fo-purpose{font-size:1.08rem;margin:10px 0 14px}
.fo-tip{background:var(--good-bg);border-left:4px solid var(--good);border-radius:0 var(--r) var(--r) 0;padding:10px 14px;margin:-4px 0 16px}
.fo-band{margin-bottom:10px}
.fo-band th{text-align:left}
.fo-band td.mk{font-family:var(--f-meta);font-weight:700;white-space:nowrap;width:4.5em}
.fo-grid.one{grid-template-columns:minmax(0,1fr)}
.fo-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:16px}
.fo-sec{margin:0 0 16px}
.fo-sec h3{font-size:1.25rem;margin-bottom:6px}
.fo-sec ul{margin:0;padding-left:1.2em}.fo-sec li{margin:3px 0}
.fo-svg svg{width:100%;height:auto;display:block}
.fo-svg .fpage{fill:var(--card);stroke:var(--ink);stroke-width:1.2}
.fo-svg .fz{fill:none;stroke:var(--muted);stroke-width:1}
.fo-svg .fz.m{stroke-dasharray:4 3;stroke:var(--steel)}
.fo-svg .fz.n{fill:var(--soft)}
.fo-svg .fz.t{fill:none}
.fo-svg .fl{stroke:var(--line);fill:none;stroke-width:.8}
.fo-svg text{font-family:var(--f-body,sans-serif);font-size:10px;fill:var(--ink)}
.fo-svg .fh{font-size:8px;fill:var(--muted)}
.fo-cmp{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 16px}
.fo-cmp section{border-radius:10px;padding:10px 14px}
.fo-cmp h3{font-size:1.2rem;margin-bottom:4px}
.fo-cmp ul{margin:0;padding-left:1.2em}
.fo-c{background:var(--soft)}
.fo-a{background:var(--good-bg)}
.fo-a h3{color:var(--good)}
.fo-steps{margin:0 0 10px;padding-left:1.3em}
.fo-prompts{list-style:none;padding:0!important}
.fo-prompts li{border-left:3px solid var(--steel);padding:4px 10px;margin:6px 0;background:var(--bg);font-style:italic}
.fo-warn{background:var(--bad-bg);border-radius:10px;padding:10px 14px}
.fo-warn h3{color:var(--bad)}
.fo-ex{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin:8px 0}
.fo-thumb{border:1.5px solid var(--line);border-radius:8px;background:#fff;padding:0;cursor:zoom-in;overflow:hidden;display:flex;flex-direction:column;color:#1B2630;font:inherit}
.fo-thumb img{width:100%;height:auto;display:block}
.fo-thumb span{font-family:var(--f-meta);font-size:.8rem;padding:4px 8px;text-align:left}
.fo-nav{justify-content:space-between;border-top:1px solid var(--line);padding-top:12px;margin-top:8px}
.fo-nav .btn{max-width:48%;white-space:normal;text-align:left}
.fo-zoom{border:0;padding:0;width:min(1400px,96vw);max-height:94vh;border-radius:10px;background:var(--card);color:var(--ink)}
.fo-zoom::backdrop{background:rgba(10,14,18,.75)}
.fo-zoom-top{display:flex;justify-content:space-between;align-items:center;padding:8px 10px 8px 16px;position:sticky;top:0;background:var(--card)}
.fo-zoom-in{overflow:auto;max-height:calc(94vh - 60px);background:#fff}
.fo-zoom-in img{width:100%;height:auto;display:block;min-width:900px}
@media (max-width:720px){.fo-grid,.fo-cmp{grid-template-columns:minmax(0,1fr)}.fo-title{font-size:1.5rem}}
/* exam timers */
.notimer .ex-timer{display:none}
.ex-tog{display:flex;align-items:center;gap:8px;margin:8px 0;min-height:44px;cursor:pointer}
.ex-tog input{width:20px;height:20px;accent-color:var(--steel)}
.ex-tog .muted{font-size:.88rem}
.ex-timer{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:8px 0 2px}
.ex-tbtn{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:4px 14px;border-radius:999px;border:1.5px solid var(--line);background:var(--card);color:inherit;font:inherit;cursor:pointer}
.ex-tic{font-size:.8rem;width:1.2em;text-align:center}
.ex-tt{font-family:var(--f-meta);font-weight:700;font-size:1.05rem;min-width:3.2em}
.ex-timer.run .ex-tbtn{border-color:var(--steel);background:var(--soft)}
.ex-timer.over .ex-tbtn{border-color:var(--tag);background:var(--warn-bg)}
.ex-tgoal{font-size:.86rem;color:var(--muted)}
.ex-timer.over .ex-tgoal{color:var(--ink);font-weight:600}
.ex-treset{border:0;background:none;color:var(--muted);font:inherit;font-size:.86rem;text-decoration:underline;cursor:pointer;min-height:40px}
/* mock */
.mk-timer{position:sticky;top:calc(var(--toph,118px) + 6px);z-index:4;display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--ink);color:var(--bg);border-radius:var(--r);padding:8px 10px 8px 16px;margin-bottom:12px;border-left:5px solid var(--tag)}
.mk-timer .t{font-family:var(--f-meta);font-size:1.35rem;font-weight:700}
.mk-timer .t.late{color:#FF8A7A}
.mk-timer .btn.primary{background:var(--tag);color:#1B2630;border-color:var(--tag)}
.mk-q{border-top:1px solid var(--line);padding:14px 0}
.mk-q textarea{width:100%;min-height:110px;font:inherit;padding:10px;border:1.5px solid var(--line);border-radius:8px;background:var(--card);color:inherit;margin-top:8px}
.mk-q .pts label{display:flex;gap:10px;align-items:flex-start;padding:6px 0;cursor:pointer}
.mk-q .pts input{width:22px;height:22px;flex:none;margin-top:2px;accent-color:var(--good)}
.mk-ans{white-space:pre-wrap;background:var(--bg);border-radius:8px;padding:10px 12px;margin:8px 0;font-size:.97rem}
.mk-score{font-family:var(--f-meta);font-weight:700}
.big-n{font-family:var(--f-display);font-size:3rem;font-weight:700;line-height:1}
.ck{border:1.5px solid var(--line);background:var(--card);border-radius:999px;padding:6px 12px;font-size:.85rem;cursor:pointer;min-height:40px}
.ck.b1[aria-pressed="true"]{background:var(--bad-bg);color:var(--bad);border-color:var(--bad)}
.ck.b2[aria-pressed="true"]{background:var(--warn-bg);border-color:var(--tag)}
.ck.b3[aria-pressed="true"]{border-color:var(--good);background:var(--good-bg);color:var(--good)}

#view-order .field{flex:1 1 260px;min-width:0}
#or-pick{width:100%;max-width:100%}
@media (max-width:520px){
  .tabs button,
  .tabs a{padding:8px 9px 10px;font-size:.98rem;letter-spacing:.01em}
}
@media (max-width:820px){
  .notes-layout{grid-template-columns:minmax(0,1fr)}
  .rail{display:none}
  .topic-select{display:block;margin-bottom:12px;width:100%}
  .brand h1,
  .brand .bn{font-size:1.35rem}
  .brand span{display:none}
}

/* careers & university */
body.cu .level{visibility:hidden}
body[data-subject="pw"] .level{visibility:hidden}
body.cu .tabs button:not(.tab-home),
body.cu .tabs a:not(.tab-home){display:none}
.fo-lo{background:var(--soft);border-left:4px solid var(--steel);padding:8px 12px;border-radius:4px;margin:8px 0}
.cu-h{font-size:1.25rem;margin:18px 0 8px;letter-spacing:.02em}
.cu-chips{display:flex;flex-wrap:wrap;gap:8px}
.cu-chip{border:1.5px solid var(--line);background:var(--bg);color:inherit;border-radius:999px;padding:7px 14px;font:inherit;font-size:.95rem;cursor:pointer;min-height:40px}
.cu-chip[aria-pressed="true"]{background:var(--steel);border-color:var(--steel);color:var(--steel-ink);font-weight:600}
.cu-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin:18px 0 12px}
.cu-bar label,.cu-filters label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;font-weight:600;color:var(--muted)}
.cu-bar select,.cu-filters select,.cu-filters input[type=text]{border:1.5px solid var(--line);border-radius:var(--r);background:var(--card);padding:8px 10px;min-height:44px;color:var(--ink);font-weight:400;font-size:1rem}
.cu-cards,.cu-route-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px;align-items:start}
.cu-card{border:1.5px solid var(--line);border-radius:10px;background:var(--bg)}
.cu-card.best{border-color:var(--tag);background:var(--warn-bg)}
.cu-card summary{list-style:none;cursor:pointer;padding:14px 16px}
.cu-card summary::-webkit-details-marker{display:none}
.cu-card summary h3{font-size:1.35rem;margin:2px 0 4px}
.cu-card summary p{margin:0;color:var(--muted);font-size:.93rem}
.cu-card summary::after{content:"More ▾";display:block;margin-top:8px;font-size:.82rem;font-weight:700;color:var(--steel)}
.cu-card[open] summary::after{content:"Less ▴"}
.cu-g{font-family:var(--f-meta);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.cu-g b{color:var(--ink)}
.cu-more{padding:0 16px 16px;border-top:1px solid var(--line)}
.cu-more h4{font-family:var(--f-display);font-size:1.05rem;margin:12px 0 4px;letter-spacing:.03em}
.cu-more ul{margin:0;padding-left:1.2em}.cu-more p{margin:0 0 6px}
.cu-routes{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 12px}
.cu-route{border:1px solid var(--steel);color:var(--steel);background:none;border-radius:999px;padding:4px 10px;font:inherit;font-size:.82rem;font-weight:600;cursor:pointer;min-height:32px}
.cu-pros{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:4px 16px}
.cu-flow{margin:8px 0 18px}.cu-flow svg{width:100%;min-width:620px;height:auto;color:var(--ink)}
.cu-flow .cu-flow-end{stroke:var(--tag);stroke-width:2.5}
.cu-flow figcaption{font-size:.88rem;color:var(--muted);margin-top:6px}
.cu-filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px 14px;align-items:end;margin:14px 0 8px}
.cu-filters .cu-check{flex-direction:row;align-items:center;gap:8px;min-height:44px;color:var(--ink);font-weight:400;font-size:.95rem}
.cu-check input{width:20px;height:20px}
.cu-note{background:var(--warn-bg);border-left:4px solid var(--tag);padding:8px 12px;border-radius:4px;font-size:.92rem}
.cu-courses{display:grid;gap:10px}
.cu-course{border:1.5px solid var(--line);border-radius:10px;padding:14px 16px;background:var(--bg);display:grid;grid-template-columns:minmax(0,1.4fr) auto;gap:6px 18px}
.cu-course.ok{border-color:var(--good)}
.cu-course h3{font-size:1.3rem;margin:2px 0}
.cu-course p{margin:0}
.cu-course dl{grid-column:1/-1;margin:4px 0 0;display:grid;grid-template-columns:auto 1fr;gap:2px 12px;font-size:.93rem}
.cu-course dt{font-weight:700}.cu-course dd{margin:0}
.cu-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px;font-size:.88rem;margin-top:4px!important}
.cu-foot a,.cu-links a,.cu-more a{color:var(--steel);font-weight:600}
.cu-grades{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-start;justify-content:flex-end}
.cu-grades span{display:flex;flex-direction:column;align-items:center;border:1px solid var(--line);border-radius:6px;padding:4px 10px;background:var(--card)}
.cu-grades small{font-size:.66rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.cu-grades b{font-family:var(--f-meta);font-size:1.1rem;letter-spacing:.08em}
.cu-grades .cu-meet{flex-direction:row;font-size:.82rem;font-weight:700;align-self:center}
.cu-meet.yes{background:var(--good-bg);color:var(--good);border-color:var(--good)}
.cu-meet.no{background:var(--soft);color:var(--muted)}
.cu-meet.wa{background:var(--warn-bg);color:var(--ink);border-color:var(--tag)}
@media (max-width:640px){body.cu .level{display:none}}
@media (max-width:640px){.cu-course{grid-template-columns:1fr}.cu-grades{justify-content:flex-start}}
.cu-time{list-style:none;padding:0;margin:8px 0;border-left:3px solid var(--tag)}
.cu-time li{display:grid;grid-template-columns:150px 1fr;gap:4px 14px;padding:8px 0 8px 14px;position:relative}
.cu-time li::before{content:"";position:absolute;left:-8px;top:15px;width:13px;height:13px;border-radius:50%;background:var(--card);border:3px solid var(--tag)}
@media (max-width:640px){.cu-time li{grid-template-columns:1fr}}
.cu-access{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.cu-access div{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:12px 14px}
.cu-access h4{font-family:var(--f-display);font-size:1.1rem;margin:0 0 4px}.cu-access p{margin:0;font-size:.93rem}
.cu-list{padding-left:1.2em}
.cu-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.cu-links a{display:flex;flex-direction:column;gap:2px;border:1.5px solid var(--line);border-radius:8px;padding:10px 12px;text-decoration:none;background:var(--bg)}
.cu-links a:hover{border-color:var(--steel)}
.cu-links span{color:var(--muted);font-weight:400;font-size:.88rem}
.cu-ps{margin-top:18px}.cu-ps h3{font-size:1.2rem}.cu-ps p{margin:4px 0}
.cu-ps details{margin:6px 0;font-size:.93rem}.cu-ps summary{cursor:pointer;color:var(--steel);font-weight:600}
.cu-ps textarea{width:100%;border:1.5px solid var(--line);border-radius:var(--r);padding:10px 12px;background:var(--card);color:var(--ink);font-size:1rem;line-height:1.5;resize:vertical}
.cu-ps-count{font-size:.85rem;color:var(--muted);text-align:right}
.cu-ps-total{position:sticky;top:calc(var(--toph,118px) + 6px);z-index:2;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 12px;margin-top:10px}
.cu-meter{height:8px;background:var(--soft);border-radius:4px;overflow:hidden;margin-top:4px}
.cu-meter span{display:block;height:100%;background:var(--good)}.cu-meter span.over{background:var(--bad)}
.cu-over{color:var(--bad);font-weight:600}

/* ---- 2026 refresh: subject colours, calmer header, phone tab bar ---- */
pre.code,.marks,.ex-tt,.mk-timer .t,.pct,.cu-grades b,.mkbtns button,.mk-score,.opt b,.ck-stat b{font-family:var(--f-mono)}
body[data-subject="dm"]{--steel:#1F6F68;--acc:#1F6F68}
body[data-subject="gc"]{--steel:#6A4C93;--acc:#6A4C93}
body[data-subject="es"]{--steel:#245A73;--acc:#2F7FA3}
body[data-subject="pw"]{--steel:#8B5A2B;--acc:#A86B32}
body[data-subject="ct"]{--steel:#B54708;--acc:#D9661F}
body[data-subject="cu"],body.cu{--steel:#2E6B4E;--acc:#3F8F68}
.home-card[data-s="dm"]{--acc:#1F6F68}.home-card[data-s="gc"]{--acc:#6A4C93}.home-card[data-s="es"]{--acc:#2F7FA3}
.home-card[data-s="pw"]{--acc:#A86B32}.home-card[data-s="ct"]{--acc:#D9661F}.home-card[data-s="cu"]{--acc:#3F8F68}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
 body[data-subject="dm"]{--steel:#5CC1B5}body[data-subject="gc"]{--steel:#B9A2DE}body[data-subject="es"]{--steel:#6FAFCB}
 body[data-subject="pw"]{--steel:#D8A36A}body[data-subject="ct"]{--steel:#F29A5B}body[data-subject="cu"],body.cu{--steel:#6FCF97}}}
:root[data-theme="dark"] body[data-subject="dm"]{--steel:#5CC1B5}:root[data-theme="dark"] body[data-subject="gc"]{--steel:#B9A2DE}
:root[data-theme="dark"] body[data-subject="es"]{--steel:#6FAFCB}:root[data-theme="dark"] body[data-subject="pw"]{--steel:#D8A36A}
:root[data-theme="dark"] body[data-subject="ct"]{--steel:#F29A5B}:root[data-theme="dark"] body.cu{--steel:#6FCF97}
.top{border-bottom-color:var(--acc)}
.brand h1,
.brand .bn{text-transform:none;font-weight:700;letter-spacing:0;font-size:1.55rem}
.brand span{font-family:var(--f-body);font-size:.85rem;letter-spacing:0;opacity:.75;text-transform:none}
.tabs button,
.tabs a{font-family:var(--f-body);font-weight:600;font-size:1rem;letter-spacing:0;text-transform:none;padding:10px 14px 11px}
.level button,
.level a{font-family:var(--f-body);letter-spacing:0;font-size:.98rem}
h1,h2,h3{letter-spacing:-.01em}
.rail h3,.ck-area{font-family:var(--f-body);font-weight:700;font-size:.8rem;letter-spacing:.07em}
.rail button[aria-current="true"],
.rail a[aria-current="page"]{border-left-color:var(--steel)}
.sheet-head{border-bottom-color:var(--steel)}
.eyebrow{letter-spacing:.07em;font-weight:600}
.mi h4,.model h4{text-transform:none;letter-spacing:0;font-size:1.1rem}
table.cmp th,table.res th{letter-spacing:0}
/* home */
.home-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.home-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.home-grid{grid-template-columns:minmax(0,1fr)}}
.home-card{border-top-color:var(--acc);min-height:0}
.home-card:hover{border-color:var(--acc);border-top-color:var(--acc);box-shadow:0 6px 18px rgba(20,30,40,.08)}
.home-ico{color:var(--acc)}
.home-lv{font-weight:700;letter-spacing:.07em}
.home-resume{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin:14px 0 4px}
.home-resume .btn{border-color:var(--ink)}
/* phone: slim header + bottom tab bar */
@media (max-width:640px){
  .top-row{flex-wrap:nowrap;padding-block:8px;gap:10px}
  .brand h1,
  .brand .bn{font-size:1.12rem;line-height:1.15}
  .brand span{display:none}
  .level{flex:none}
  .level button,
  .level a{padding:3px 10px;font-size:.85rem;min-height:36px;white-space:nowrap}
  .tabs{position:fixed;left:0;right:0;bottom:0;margin:0;z-index:30;background:var(--ink);color:var(--bg);border-top:3px solid var(--acc);
        padding:4px 4px calc(4px + env(safe-area-inset-bottom,0px));gap:2px;justify-content:space-around;overflow:visible;box-shadow:0 -4px 16px rgba(0,0,0,.18)}
  :root[data-theme="dark"] .tabs{background:#0A0F13;color:var(--ink)}
  .tabs button,
  .tabs a{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:3px;padding:6px 0 5px;
        font-size:.62rem;line-height:1.1;white-space:normal;overflow-wrap:normal;letter-spacing:-.01em;text-align:center;border-radius:10px;opacity:.78;min-height:52px}
  .tabs button::before,
  .tabs a::before{content:"";width:22px;height:22px;flex:none;background:currentColor;-webkit-mask:var(--ic) center/contain no-repeat;mask:var(--ic) center/contain no-repeat}
  .tabs button[aria-selected="true"],
  .tabs a[aria-current="page"]{background:rgba(255,255,255,.14);color:inherit;opacity:1}
  body.home .tabs,body.cu .tabs{display:none}
  main{padding-bottom:96px}
  .ck-dock{bottom:calc(74px + env(safe-area-inset-bottom,0px))}
  .toast{bottom:calc(84px + env(safe-area-inset-bottom,0px))}
  .rail{top:70px}
}
@media (prefers-color-scheme: dark){@media (max-width:640px){:root:not([data-theme="light"]) .tabs{background:#0A0F13;color:var(--ink)}}}
.tabs button[data-tab="home"],
.tabs a[data-tab="home"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 11l9-7 9 7'/%3E%3Cpath d='M5 10v10h14V10'/%3E%3C/svg%3E")}
.tabs button[data-tab="notes"],
.tabs a[data-tab="notes"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 5a2 2 0 0 1 2-2h13v16H6a2 2 0 0 0-2 2z'/%3E%3Cpath d='M4 19V5M8 7h7M8 11h7'/%3E%3C/svg%3E")}
.tabs button[data-tab="phub"],
.tabs a[data-tab="phub"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Ccircle cx='12' cy='12' r='5'/%3E%3Ccircle cx='12' cy='12' r='1.5'/%3E%3C/svg%3E")}
.tabs button[data-tab="ehub"],
.tabs a[data-tab="ehub"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='5' y='4' width='14' height='17' rx='2'/%3E%3Cpath d='M9 4V3h6v1M9 11l2 2 4-4M9 17h6'/%3E%3C/svg%3E")}
.tabs button[data-tab="check"],
.tabs a[data-tab="check"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l2 2 3-3M4 13l2 2 3-3M4 20h.01M12 7h8M12 14h8M12 20h8'/%3E%3C/svg%3E")}
.tabs button[data-tab="teacher"],
.tabs a[data-tab="teacher"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='12' rx='1'/%3E%3Cpath d='M12 16v4M8 20h8'/%3E%3C/svg%3E")}
.tabs button[data-tab="print"],
.tabs a[data-tab="print"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 9V3h10v6'/%3E%3Crect x='3' y='9' width='18' height='8' rx='2'/%3E%3Cpath d='M7 14h10v7H7z'/%3E%3C/svg%3E")}
.tabs button[data-tab="folio"],
.tabs a[data-tab="folio"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 6a2 2 0 0 1 2-2h4l2 2h8a2 2 0 0 1 2 2v10a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3C/svg%3E")}
.tabs button[data-tab="results"],
.tabs a[data-tab="results"]{--ic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 20V10M10 20V4M16 20v-7M22 20H2'/%3E%3C/svg%3E")}

/* ---- features: tools, search, reading options, countdown, planner, calc, report ---- */
body{font-size:1rem}
html.ts-1{font-size:112.5%} html.ts-2{font-size:125%}
html.readable{--f-body:"Lexend","Segoe UI",system-ui,sans-serif;--f-display:"Lexend","Segoe UI",system-ui,sans-serif;--f-meta:"Lexend","Segoe UI",system-ui,sans-serif}
html.readable body{line-height:1.75;letter-spacing:.01em;word-spacing:.06em}
html.readable .sec p,html.readable .sec li{max-width:65ch}
.top-tools{display:flex;gap:6px}
.tool-btn{width:40px;height:40px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:1.5px solid rgba(255,255,255,.35);background:none;color:inherit;font:inherit;font-weight:700;font-size:1rem;cursor:pointer}
.tool-btn:hover{background:rgba(255,255,255,.12)}
@media (max-width:640px){.tool-btn{width:36px;height:36px;min-height:36px}.top-tools{gap:4px;flex:none}}
.sr-top{display:flex;gap:8px;margin-bottom:10px}
.sr-top input{flex:1;min-width:0;font-size:1.05rem;min-height:46px;border:1.5px solid var(--line);border-radius:var(--r);padding:8px 12px;background:var(--bg);color:var(--ink)}
#sr-dlg{width:min(680px,calc(100vw - 24px));margin-top:8vh;max-height:84vh}
#sr-out{max-height:62vh;overflow:auto;display:grid;gap:6px}
.sr-hit{display:flex;flex-direction:column;gap:2px;text-align:left;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:inherit;font:inherit;padding:9px 12px;cursor:pointer}
.sr-hit:hover{border-color:var(--steel)}
.sr-hit[data-s="dm"]{--acc:#1F6F68}.sr-hit[data-s="gc"]{--acc:#6A4C93}.sr-hit[data-s="es"]{--acc:#2F7FA3}.sr-hit[data-s="pw"]{--acc:#A86B32}.sr-hit[data-s="ct"]{--acc:#D9661F}
.sr-hit{border-left:5px solid var(--acc)}
.sr-meta{font-size:.8rem;color:var(--muted)}.sr-sub{font-weight:700;color:var(--ink)}
.sr-snip{font-size:.9rem;color:var(--muted)}
.sr-snip mark{background:var(--warn-bg);color:var(--ink);padding:0 1px;border-radius:2px}
.sec.sr-flash{animation:srf 2.2s}
@keyframes srf{0%,40%{background:var(--warn-bg)}100%{background:transparent}}
.site-foot{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 14px;margin:36px 0 8px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font:400 .85rem/1.4 var(--f-meta,inherit)}
.linkbtn{background:none;border:0;padding:4px 2px;color:inherit;font:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.linkbtn:hover{color:var(--ink)}
.pv h4{margin:16px 0 4px;font-size:1rem}
.pv p{margin:6px 0;line-height:1.5}
#pv-clear.armed{background:#B23A2E;border-color:#B23A2E;color:#fff}
@page{margin:14mm 14mm 16mm}
@media print{
  .top,.tabs,#subnav,.rail,.topic-select,.sheet-foot,.site-foot,.toast,.no-print,.say,.fb-btn,.fig-scroll::after{display:none!important}
  body{background:#fff;color:#000;font-size:11.5pt}
  main.wrap,.wrap{max-width:none;padding:0}
  .notes-layout{display:block}
  .sheet{border:0;padding:0;box-shadow:none}
  .sec{break-inside:auto}.fig,.tbl,.mk-box,.q{break-inside:avoid}
  .sec h3{break-after:avoid}
  .fig-scroll{overflow:visible}.fig svg{min-width:0;max-width:16cm}
  details:not([open]) > *:not(summary){display:none}
  summary{display:none}
  a{color:inherit;text-decoration:none}
  .print-only{display:block!important}
}
.print-only{display:none}
.sheet-head .print-btn{margin-top:8px}
.a11y-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:12px 0;border-top:1px solid var(--line);cursor:pointer}
.a11y-row small{display:block;color:var(--muted);font-size:.86rem}
.a11y-row input{width:24px;height:24px;flex:none;accent-color:var(--steel)}
.a11y-seg{display:inline-flex;border:1.5px solid var(--line);border-radius:999px;overflow:hidden}
.a11y-seg button{border:0;background:none;color:inherit;font:inherit;font-weight:700;width:46px;min-height:40px;cursor:pointer}
.a11y-seg button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.say{margin-left:auto;border:1.5px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:2px 12px;font:inherit;font-size:.82rem;font-weight:600;min-height:32px;cursor:pointer}
.say.on{background:var(--steel);border-color:var(--steel);color:var(--steel-ink)}
.home-install{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--tag);border-radius:var(--r);padding:10px 14px;margin:6px 0 4px}
.ex-cd-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin-bottom:6px}
.ex-cd{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-left:5px solid var(--acc);border-radius:10px;padding:10px 14px}
.ex-cd[data-s="dm"]{--acc:#1F6F68}.ex-cd[data-s="gc"]{--acc:#6A4C93}.ex-cd[data-s="es"]{--acc:#2F7FA3}
.ex-cd-n{font-family:var(--f-display);font-size:2.2rem;font-weight:700;line-height:1;min-width:2.2ch;text-align:center}
.ex-cd-t small,.pl-cd small{display:block;color:var(--muted);font-size:.85rem}
@media (max-width:560px){.ex-cd{padding:7px 12px}.ex-cd-n{font-size:1.7rem}.ex-cd-row{gap:6px}}
.ck-rep{margin-top:8px}
.pl{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:14px;background:var(--bg);border:1px solid var(--line);border-left:5px solid var(--steel);border-radius:10px;padding:14px 16px;margin:4px 0 14px}
@media (max-width:720px){.pl{grid-template-columns:minmax(0,1fr)}}
.pl-cd{display:flex;align-items:center;gap:12px;align-self:start}
.pl-h0{font-size:1.3rem;margin-bottom:2px}
.pl-h{font-size:1rem;margin:10px 0 4px;color:var(--muted);font-family:var(--f-body);text-transform:uppercase;letter-spacing:.06em}
.pl-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.pl-list li{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 12px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.pl-t{display:flex;flex-direction:column}
.pl-c{font-size:.85rem;color:var(--muted)}.pl-u{font-size:.85rem}
.pl-b{display:flex;gap:6px;flex-wrap:wrap}.pl-b .btn{padding:4px 12px;min-height:38px;font-size:.9rem}
.pl-more summary{cursor:pointer;font-weight:600;color:var(--steel);margin-top:10px;min-height:32px}
.calc-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.calc-row input{font-size:1.2rem;width:12ch;min-height:48px;border:1.5px solid var(--line);border-radius:var(--r);padding:6px 10px;background:var(--card);color:var(--ink)}
.calc-unit{font-weight:700;min-width:2ch}
.calc-steps{margin:.4em 0 0;padding-left:1.3em}.calc-steps li{margin:.2em 0}
.rp-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;border-bottom:2px solid var(--steel);padding-bottom:10px}
.rp-top h2{font-size:1.9rem}
.rp-name input{min-width:220px}
.rp-stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;margin:14px 0}
.rp-stats div{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.rp-stats b{display:block;font-family:var(--f-display);font-size:1.6rem;line-height:1.1}.rp-stats small{color:var(--muted);font-size:.8rem}
.rp-t{width:100%;border-collapse:collapse;font-size:.92rem}
.rp-t th,.rp-t td{border-bottom:1px solid var(--line);padding:7px 6px;text-align:left;vertical-align:top}
.rp-t td:first-child{width:34%;font-weight:600}.rp-q{text-align:center!important;width:12%;font-weight:700}
.rp-bar{margin:3px 0 2px}.rp-t small{color:var(--muted)}
.rp-foot{font-size:.82rem;margin-top:12px}
.rp-actions{margin-bottom:14px}
@media print{
  .top,.tabs,#subnav,.rp-actions,.toast,.ck-dock{display:none!important}
  body{background:#fff}main{padding:0}
  .rp{border:0;padding:0}
  .ck-bar i{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .rp-stats div,.ck-bar{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}
.fo-hol,.fo-whole{display:inline-block;margin-top:4px;font-size:.72rem;font-weight:700;letter-spacing:.03em;padding:1px 7px;border-radius:999px}
.fo-hol{background:var(--tag);color:var(--tag-ink)}
.fo-whole{background:var(--soft);color:var(--ink);border:1px solid var(--line)}
.fo-map button[aria-current] .fo-whole{background:transparent;color:inherit;border-color:currentColor}
.fo-markline{margin:6px 0 0;padding:6px 10px;border-radius:6px;font-size:.93rem;background:var(--soft);max-width:70ch}
.fo-markline.fo-mk-holistic{background:var(--warn-bg);border-left:4px solid var(--tag)}
.fo-legend{font-size:.88rem;color:var(--muted);margin:-4px 0 10px}.fo-legend:empty{display:none}

.top a,.rail a,.subnav a,.tabs a,.level a{text-decoration:none}
a.brand{color:inherit}
.rail a{display:block}
.level a{display:inline-flex;align-items:center}
.sheet a:not(.btn),.panel a:not(.btn){color:var(--steel)}
.tl a{color:var(--ink)!important}
.sheet-head h1{font-size:clamp(1.9rem,4vw,2.6rem);font-weight:700;margin:0}
.crumbs{font-family:var(--f-meta);font-size:.88rem;color:var(--muted);margin:0 0 12px}
.crumbs a{color:inherit}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:4px}
.crumbs li+li::before{content:"›";margin-right:4px}
.q{border-top:1px solid var(--line);padding:12px 0}
.q:first-of-type{border-top:0}
.q .qt{font-weight:600;margin:0 0 6px}
.q ol{margin:4px 0;padding-left:1.4em}
.q details{margin-top:6px}
.q summary{cursor:pointer;color:var(--steel);font-weight:600}
.q .ans{background:var(--good-bg);border-radius:var(--r);padding:8px 12px;margin-top:6px}
.marks{font-family:var(--f-mono);font-size:.85rem;color:var(--muted);white-space:nowrap}
.tl,.sec ul.tl{list-style:none;padding:0;margin:8px 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.tl a{display:block;height:100%;border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;text-decoration:none;color:var(--ink);background:var(--card)}
.tl a:hover{border-color:var(--steel)}
.tl b{display:block;font-family:var(--f-display);font-size:1.08rem;font-weight:600}
.tl span{display:block;font-size:.9rem;color:var(--muted);margin-top:2px}
.page-foot{margin:28px 0 8px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font:400 .85rem/1.5 var(--f-meta);text-align:center}
.page-foot a{color:inherit}
.cu-static .cu-more{display:block}
@media print{.page-foot,.crumbs{display:none}}