/* Approved training layout; runtime behavior is implemented in ES modules. */
#app[data-screen=training]{height:100dvh;display:grid;grid-template-rows:80px minmax(0,1fr) auto;overflow:hidden}button{ -webkit-tap-highlight-color:transparent}.topbar{display:flex;align-items:center;padding:0 40px;gap:30px;border-bottom:1px solid var(--line);z-index:20;background:var(--canvas)}.brand{font-weight:650;letter-spacing:-1.1px;font-size:25px;display:flex;align-items:baseline;gap:4px;white-space:nowrap}.course{border-left:1px solid var(--line);padding-left:28px;display:flex;flex-direction:column;gap:2px}.course>span{font-size:14px;font-weight:550}.course small{font-size:12px;color:var(--muted)}.session{margin-left:auto;display:flex;align-items:center;gap:28px}.student-name{font-size:13px;color:var(--muted)}.progress-toggle{gap:10px;padding:6px 10px}.chevron{width:18px;height:18px}.progress-toggle[aria-expanded=true] .chevron{transform:rotate(180deg)}.session-panel{position:absolute;right:0;top:56px;width:328px;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.session-panel h2{font-size:18px;font-weight:550;margin-bottom:23px;letter-spacing:-.3px}.counter{display:flex;justify-content:space-between;align-items:center;margin:13px 0;font-size:14px}.counter strong{font-size:18px;font-weight:550;font-variant-numeric:tabular-nums}.exit-actions{margin-top:20px;padding-top:10px;border-top:1px solid var(--line)}.exit-actions button{display:flex;justify-content:space-between;align-items:center;width:100%;background:none;border:0;text-align:left;padding:10px 0;font-size:14px}.exit-actions button:last-child{color:var(--error)}.conversation{overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line) transparent;scroll-padding-top:0;overflow-anchor:none}.stream{max-width:var(--content-width);margin:auto;padding:36px 0 40px;min-height:100%}.session-date{text-align:center;font-size:12px;color:var(--muted);margin-bottom:28px}.message{margin:20px 0;display:flex;flex-direction:column;align-items:flex-start;max-width:100%;scroll-margin-top:20px}.message .byline{font-size:11px;color:var(--muted);margin:0 0 6px 3px;letter-spacing:.1px}.message .bubble{padding:15px 18px;border-radius:14px 14px 14px 4px;background:var(--blue-pale);font-size:16px;line-height:1.6;max-width:670px}.message.student{align-items:flex-end;margin-left:76px}.student .bubble{background:var(--sand);border-radius:14px 14px 4px 14px;max-width:600px}.bubble p+p{margin-top:10px}.bubble strong{font-weight:550}.task{border:1px solid var(--line);border-radius:14px;background:var(--paper);margin:24px 0;scroll-margin-top:20px;overflow:hidden}.task-heading{padding:21px 26px 0;display:flex;align-items:center;gap:10px}.task-heading>span{font-size:13px;font-weight:550;color:var(--blue)}.task-heading small{font-size:12px;color:var(--muted);margin-left:auto}.task-body{padding:14px 26px 22px}.task h1,.task h2{font-size:21px;line-height:1.4;letter-spacing:-.35px;font-weight:550;margin-bottom:7px}.instruction{font-size:14px;color:var(--muted);line-height:1.55;margin-bottom:20px}.options{display:flex;flex-direction:column;gap:0}.option{display:grid;grid-template-columns:22px 22px 75px 1fr;gap:14px;align-items:center;min-height:49px;padding:2px 12px;cursor:pointer;border-bottom:1px solid var(--line)}.option:first-child{border-top:1px solid var(--line)}.option:has(input:checked){border-radius:7px;background:var(--blue-pale);border-color:transparent}.option input{width:19px;height:19px;margin:0;accent-color:var(--blue)}.option:has(input:focus-visible){outline:2px solid var(--blue);outline-offset:1px}.option .number{font-size:13px;color:var(--muted)}.formula{font-size:21px;letter-spacing:-.3px}.option .chemical{font-size:15px}.task-actions{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:21px}.task-status{font-size:12px;color:var(--muted);line-height:18px}.task-actions .action-primary{min-width:153px}.answer-input-label{display:block;font-size:13px;margin-bottom:7px}.text-answer{height:48px;width:220px;max-width:100%;border:1px solid var(--line);border-radius:7px;padding:8px 13px;background:var(--paper);font-size:18px}.text-answer:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.validation{font-size:13px;color:var(--error);margin-top:10px}.task-result{border-top:1px solid var(--line);margin-top:22px;padding-top:18px}.verdict{font-size:16px;font-weight:550;color:var(--blue);display:flex;align-items:center;gap:8px;margin-bottom:14px}.verdict.wrong{color:var(--error)}.result-label{font-size:12px;color:var(--muted);margin-bottom:4px}.answer-key{font-size:17px;font-weight:550;margin-bottom:15px}.solution{font-size:15px;line-height:1.6}.solution p+p{margin-top:8px}.solution-heading{font-size:12px;color:var(--muted);margin-bottom:5px}.task-summary{background:transparent;border:0;display:flex;align-items:center;gap:12px;width:100%;text-align:left;min-height:58px;padding:12px 20px;font-size:14px}.task-summary .summary-verdict{color:var(--blue)}.task-summary.wrong .summary-verdict{color:var(--error)}.task-summary .chevron{margin-left:auto;flex:none}.task-summary[aria-expanded=true] .chevron{transform:rotate(180deg)}.task.completed{background:transparent;margin:13px 0;border-radius:10px}.task.completed:has(.archive-content:not([hidden])){background:var(--paper)}.archive-content{border-top:1px solid var(--line)}.task.completed .task-summary{font-size:14px}.writing{background:var(--canvas);padding:14px 24px 24px}.compose-wrap{display:flex;align-items:flex-end;gap:12px;width:min(var(--content-width),100%);margin:auto}.compose{display:flex;align-items:flex-end;flex:1;background:var(--paper);border:1px solid var(--line);border-radius:28px;padding:6px 7px 6px 20px;min-width:0;gap:8px}.compose:focus-within{border-color:var(--blue)}.compose textarea{border:0;background:none;resize:none;min-width:0;width:100%;font-size:16px;line-height:24px;padding:10px 0;max-height:120px;outline:0;height:44px}.compose .send-question:disabled{background:var(--sand);color:var(--muted);opacity:1}.monomer{margin-bottom:3px}dialog{border:1px solid var(--line);border-radius:16px;padding:28px;background:var(--paper);color:var(--ink);max-width:min(460px,calc(100% - 32px))}dialog::backdrop{background:rgba(45,52,60,.22)}dialog h2{font-size:1.5rem;font-weight:550;margin:14px 0 12px;letter-spacing:-0.02273em}dialog p{font-size:var(--text-body);line-height:1.6;color:var(--muted)}.dialog-eyebrow{font-size:var(--text-label);letter-spacing:0.04545em;color:var(--blue)}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:26px}.dialog-actions>button{border:1px solid var(--line);border-radius:7px;background:none;padding:9px 16px;font-size:var(--text-control)}.dialog-actions>.action-primary{background:var(--blue);color:white;border-color:var(--blue)}
@media(min-width:1000px){.conversation{padding:0 40px}.stream{padding-top:36px}.task h1{max-width:680px}}
@media(max-width:600px){#app[data-screen=training]{grid-template-rows:62px minmax(0,1fr) auto}.topbar{padding:0 16px;gap:16px}.brand{font-size:22px}.course,.student-name{display:none}.session{gap:0}.progress-toggle{font-size:13px;gap:7px;padding:5px 0 5px 8px}.progress-toggle .ring-svg{width:25px;height:25px}.session-panel{position:fixed;right:12px;top:69px;width:min(328px,calc(100vw - 24px));padding:22px}.session-panel h2{font-size:18px}.counter{font-size:14px}.stream{padding:22px 14px 24px}.session-date{margin-bottom:20px}.message{margin:17px 0;scroll-margin-top:14px}.message .byline{font-size:11px}.message .bubble{font-size:16px;line-height:1.5;padding:12px 14px;max-width:100%}.message.student{margin-left:34px}.message:not(.student){margin-right:18px}.task{margin:20px 0;border-radius:12px;scroll-margin-top:12px}.task-heading{padding:16px 16px 0}.task-heading>span{font-size:13px}.task-heading small{font-size:11px}.task-body{padding:12px 16px 16px}.task h1,.task h2{font-size:18px;line-height:26px;letter-spacing:-.2px;margin-bottom:7px}.instruction{font-size:13px;line-height:20px;margin-bottom:15px}.option{grid-template-columns:20px 16px 60px 1fr;gap:9px;min-height:48px;padding:3px 7px}.option input{width:18px;height:18px}.option .chemical{font-size:14px}.formula{font-size:21px}.task-actions{margin-top:17px;gap:8px}.task-actions .action-primary{min-width:140px;padding:10px 15px}.task-status{font-size:11px;line-height:17px}.task-result{padding-top:17px;margin-top:18px}.solution{font-size:16px;line-height:1.55}.task.completed{margin:11px 0}.task-summary{padding:10px 13px;gap:8px;min-height:54px;font-size:14px}.writing{padding:8px 12px max(12px,env(safe-area-inset-bottom))}.compose-wrap{gap:6px}.compose-wrap .monomer{width:43px;background-position:-15px -91px}.compose{padding:5px 5px 5px 14px;gap:5px}.compose textarea{font-size:16px}.text-answer{width:100%}.dialog-actions{flex-wrap:wrap}}

.option.chosen{background:var(--blue-pale);border-radius:7px;border-color:transparent}.readonly-mark{display:grid;place-items:center;width:18px;height:18px;border:1px solid var(--line);border-radius:3px;font-size:12px;color:var(--blue)}.completed .option{cursor:default}

/* Compact shared analysis, identical for newly accepted and archived tasks. */
.task-result{margin-top:16px;padding-top:12px}.verdict{font-size:16px;line-height:24px;margin-bottom:9px;gap:0}.result-label,.solution-heading{font-size:13px;line-height:19px;margin-bottom:2px}.answer-key{font-size:16px;line-height:23px;font-weight:600;margin-bottom:9px}.solution{font-size:15px;line-height:1.5}.solution p+p{margin-top:6px}.task-result+.task-actions{margin-top:14px}.archive-content .task-actions{margin-top:16px}.archive-content input:disabled{opacity:1}.archive-content .text-answer{color:var(--ink);-webkit-text-fill-color:var(--ink)}
@media(max-width:600px){.solution{font-size:16px;line-height:1.5}.task-result{margin-top:14px;padding-top:12px}}

.result-slot:has(.task-result)+.task-actions{margin-top:14px}

.counter strong:has([data-correct]){display:flex;flex-direction:column;align-items:flex-end;gap:1px}.counter strong small{font-size:12px;line-height:18px;color:var(--muted);font-weight:400}

/* Approved public bank forms from mvp.css. */
.draft-status{font-size:12px;line-height:18px;color:var(--muted);margin:12px 0 0}
.draft-status.error{color:var(--error)}
.bank-body{font-size:17px;line-height:1.65;overflow-wrap:anywhere;display:flow-root}
.bank-body p{margin:8px 0 12px}
.bank-body img{max-width:100%;height:auto;object-fit:contain}
.bank-body table{border-collapse:collapse;width:100%;font-size:14px}
.bank-body td,.bank-body th{padding:9px;border:1px solid var(--line);text-align:left}
.bank-options{margin:18px 0}
.bank-option{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);min-height:48px;font-size:16px}
.bank-option input{width:20px;height:20px;flex:none;accent-color:var(--blue);margin-top:3px}
.bank-option .bank-label{font-size:13px;color:var(--muted);min-width:16px}
.bank-option p{margin:0}
.bank-fields{display:flex;gap:14px;flex-wrap:wrap;margin:16px 0}
.bank-fields label{display:flex;flex-direction:column;gap:6px;font-size:13px}
.bank-fields input,.bank-sequence select{min-height:48px;width:100px;max-width:100%;padding:9px 12px;border:1px solid var(--line);background:var(--paper);border-radius:7px;font-size:17px}
.bank-sequence{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0}
.bank-sequence label{display:flex;flex-direction:column;font-size:12px;gap:6px}
.bank-sequence select{width:92px}
@media(max-width:600px){.bank-body{font-size:16px}.bank-fields{gap:12px}.bank-fields input{width:110px}.bank-option{gap:9px}.bank-body img{float:none;display:block;margin:12px auto}}
.image-status{display:block;font-size:13px;color:var(--muted);margin:10px 0}.attribution{font-size:12px;color:var(--muted)}.bank-option:has(input:focus-visible){outline:2px solid var(--blue);outline-offset:1px}.bank-option:has(input:checked){background:var(--blue-pale);border-radius:7px}.bank-fields input:focus-visible,.bank-sequence select:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.bank-body table{display:block;max-width:100%;overflow:auto}.solution{overflow-wrap:anywhere}.solution img{max-width:100%;height:auto}.solution table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}.solution td,.solution th{border:1px solid var(--line);padding:9px}.counter strong small{display:block;font-size:12px;color:var(--muted);font-weight:400;text-align:right}.progress-widget{position:relative}.composer-note{width:min(var(--content-width),100%);margin:5px auto 0;padding-left:60px;font-size:12px;color:var(--muted)}.compose textarea:disabled{color:var(--muted);opacity:1}.draft-status button{border:1px solid var(--line);border-radius:7px;background:var(--paper);font-size:13px;padding:6px 10px;margin:5px 8px 0 0}.bubble{white-space:pre-wrap}input,select{font:inherit}
.table-scroll{max-width:100%;overflow-x:auto}.table-scroll:focus-visible{outline:3px solid var(--blue);outline-offset:2px}.bank-body table,.solution table{display:table;width:100%;overflow:visible}.material-float-right{float:right;margin:10px}.material-float-left{float:left;margin:10px}@media(max-width:600px){.bank-body img.material-float-right,.bank-body img.material-float-left{float:none;display:block;margin:12px auto}}
.task:focus-visible{outline:3px solid var(--blue);outline-offset:3px}

/* Review and AI states transferred from the approved styles/mvp.css. */
.mini-status{font-size:13px;color:var(--muted)}
.review-heading{padding:24px 26px;background:var(--paper);border:1px solid var(--line);border-radius:14px;margin:20px 0}.review-heading h1{font-size:28px;font-weight:550;letter-spacing:-.7px;margin:10px 0}.review-heading p{font-size:15px;color:var(--muted);line-height:1.55}.review-counts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin:20px 0}.review-counts span{display:block;font-size:12px;color:var(--muted)}.review-counts strong{font-size:26px;font-weight:550}.review-heading .action-primary{width:100%}.review-heading h1[tabindex="-1"]:focus{outline:none}
.ai-status{margin-top:15px;padding:12px 0;font-size:14px;color:var(--muted)}.ai-status p{margin-bottom:8px}.ai-status button{background:none;border:1px solid var(--line);border-radius:7px;padding:8px 15px;font-size:14px;color:var(--ink)}.ai-status.error{color:var(--error)}.ai-status small{display:block;font-size:12px;color:var(--muted);margin-top:8px}.preview{white-space:pre-wrap;overflow-wrap:anywhere}.message .bubble{overflow-wrap:anywhere}.service-meta{padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:24px 0}.service-meta div{display:flex;justify-content:space-between;gap:16px;font-size:var(--text-control);margin:9px 0}.service-meta strong{font-weight:550;text-align:right}.dialog-state{font-size:var(--text-label)!important;color:var(--error)!important;margin-top:14px!important}
@media(max-width:600px){.review-heading{padding:16px;margin-top:0}.review-heading h1{margin:6px 0;font-size:24px}.review-heading p{font-size:14px}.review-counts{gap:9px;padding:12px 0;margin:14px 0}.review-counts span{font-size:11px}.review-counts strong{font-size:24px}.review-heading .action-primary{padding:10px 12px}.review-heading .mini-status{font-size:11px}.ai-status{font-size:13px}.dialog-actions{justify-content:stretch}.dialog-actions button{flex:1}}

/* Message snapshots and durable replies share the same safe Markdown layout. */
.message.tutor{color:var(--ink)}
.message .bubble.markdown,#app:is([data-screen=home],[data-screen=theory]) .chat-panel .message .bubble.markdown{white-space:normal;min-width:0}
.bubble.markdown>:first-child{margin-top:0}.bubble.markdown>:last-child{margin-bottom:0}
.bubble.markdown p{margin:0}.bubble.markdown p+p{margin-top:10px}
.bubble.markdown ul,.bubble.markdown ol{margin:10px 0;padding-left:24px}.bubble.markdown li+li{margin-top:5px}
.bubble.markdown pre{max-width:100%;overflow:auto;white-space:pre-wrap}.bubble.markdown code{overflow-wrap:anywhere}
.bubble.markdown table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}.bubble.markdown td,.bubble.markdown th{border:1px solid var(--line);padding:6px 9px}
.task-actions{justify-content:flex-end}.task-actions:has(.task-status:not([hidden])){justify-content:space-between}

/* The native modal owns focus immediately; its backdrop has the same finite entrance. */
dialog[open]::backdrop{opacity:1;transition:opacity var(--motion-dialog) var(--ease-out)}
@starting-style{dialog[open]::backdrop{opacity:0}}

:root[data-motion-input=keyboard] dialog::backdrop{transition:none}
@media(prefers-reduced-motion:reduce){dialog::backdrop{transition:none!important}}

/* The feed and composer stay centered in the viewport, independently of the menu. */
#app[data-screen=training]{position:relative;grid-template-columns:minmax(0,1fr)}
#app[data-screen=training] .topbar{grid-column:1/-1;grid-row:1;justify-content:flex-start}
#app[data-screen=training] .conversation{grid-column:1/-1;grid-row:2;min-width:0;min-height:0}
#app[data-screen=training] .writing{grid-column:1/-1;grid-row:3;min-width:0}
#app[data-screen=training] .progress-widget{border-left:1px solid var(--line);padding-left:18px}
#app[data-screen=training] .progress-toggle{display:flex;gap:12px;text-align:left;background:none;border:0}
#app[data-screen=training] .course{display:flex;flex-direction:column;gap:3px;border:0;padding:0}
#app[data-screen=training] .course small{font-size:11px;color:var(--muted)}
#app[data-screen=training] .progress-toggle>.chevron{display:none;width:36px;height:36px;transform:none}
#app[data-screen=training] .progress-toggle.panel-open>.chevron{display:block}
#app[data-screen=training] .progress-toggle.panel-open :is(.course,.ring-svg,.menu-icon){display:none}
.menu-icon{font-size:20px}
#app[data-screen=training] .session-panel{position:absolute;left:24px;right:auto;top:96px;width:min(332px,calc((100% - 800px)/2 - 48px));max-height:calc(100% - 112px);overflow:auto;margin:0;padding:24px;border-radius:16px}
#app[data-screen=training] .progress-toggle>.chevron path{stroke-width:2}
#app[data-screen=training] .session-panel .counter{margin:0 0 24px;gap:16px}
.session-panel .counter>div{display:flex;flex-direction:column;gap:4px}
#app[data-screen=training] .session-panel .counter span{font-size:17px;font-weight:550}
#app[data-screen=training] .session-panel .counter strong{font-size:28px;line-height:1.25}
.session-panel .counter>.ring-svg{width:68px;height:68px;flex:none}
.remaining-errors{border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:15px}
#app[data-screen=training] .exit-actions{margin-top:18px;padding-top:8px}
#app[data-screen=training] .exit-actions button{color:var(--ink)}
@media(max-width:1439px){
  #app[data-screen=training].training-menu-open{grid-template-columns:minmax(0,1fr);grid-template-rows:80px auto minmax(0,1fr) auto}
  #app[data-screen=training] .session-panel{position:static;grid-column:1;grid-row:2;align-self:start;width:min(332px,calc(100% - 32px));max-height:none;margin:12px 16px 0;padding:18px 20px}
  #app[data-screen=training].training-menu-open .conversation{grid-column:1;grid-row:3}
  #app[data-screen=training].training-menu-open .writing{grid-column:1;grid-row:4}
  #app[data-screen=training] .session-panel .counter{margin-bottom:16px}
  #app[data-screen=training] .exit-actions{margin-top:12px;padding-top:4px}
  .remaining-errors{padding-top:12px}
}
@media(max-width:600px){
  #app[data-screen=training].training-menu-open{grid-template-rows:62px auto minmax(0,1fr) auto}
  #app[data-screen=training] .progress-widget{padding-left:12px}
  #app[data-screen=training] .progress-toggle{padding-left:0;gap:8px}
}
.review-counts{grid-template-columns:repeat(2,1fr)}