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/* Allow intrinsic text to wrap inside narrow grid tracks instead of widening the page. */
.columns>*{min-width:0}.metric{min-width:0;overflow-wrap:anywhere}.quick{min-width:0}.section-title{flex-wrap:wrap}.section-title h2{flex-wrap:wrap}.search-result{text-align:left;white-space:normal;overflow-wrap:anywhere}
@media(max-width:700px){.columns,.exam-entry,.exam-layout{grid-template-columns:minmax(0,1fr)}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quick{grid-template-columns:28px minmax(0,1fr);gap:4px 8px;padding:10px}.quick .iconbox{width:28px;height:32px}.quick small{overflow-wrap:anywhere}.metric strong{font-size:23px}.top-actions{min-width:0}.searchbox{max-width:46vw}.exam-numbers{grid-template-columns:repeat(6,minmax(0,1fr))}.heading{flex-wrap:wrap}}

/* Local paper archives share the red, cream and gold study-room palette. */
.paper-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:20px}.paper-card{border-top:3px solid #ae3234;display:flex;flex-direction:column;align-items:flex-start}.paper-card h2{font-size:21px;line-height:1.6}.paper-count{color:#9c262b;font-size:18px;margin-top:auto}.paper-count strong{font-family:Georgia,serif;font-size:40px}.paper-count small{color:#8d8173}.source-mock_exam{background:#e8e3d9;color:#69563d}.source-reconstructed_exam{background:#f7ecd0;color:#836222}.source-official_exam{background:#f4dedc;color:#a02e30}.source-practice,.source-user_imported{background:#eeece7;color:#665f54}.code-editor{min-height:340px;font-family:Consolas,monospace;font-size:13px;white-space:pre;tab-size:2}.shared-material{padding:18px;background:#f7f3eb;border-left:3px solid #ba9a5f;margin-bottom:20px;line-height:1.9}.paper-question-list{margin-top:20px}.paper-question-list summary{line-height:1.8}.sidebar{overflow-y:auto}.paper-card .card-meta{flex-wrap:wrap}#catalogue-center .toolbar{flex-wrap:wrap}#catalogue-center .toolbar .field{min-width:140px;flex:1}#catalogue-center .resource-row{gap:12px}#catalogue-center .resource-main{min-width:0;overflow-wrap:anywhere}@media(max-width:600px){#catalogue-center .resource-row{align-items:flex-start;flex-wrap:wrap}.code-editor{min-height:260px}.paper-count strong{font-size:32px}}

/* Keep native hidden semantics even when button classes define display. */
[hidden]{display:none!important}
.material-wrap{margin:18px 0;border:1px solid #e6d8c2;border-radius:10px;background:#fbf7ef;overflow:hidden}.material-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;background:#f5ecdd}.material-head strong{display:block;color:#8f2929}.material-head span{display:block;margin-top:5px;font-size:11px;color:#8c7a67}.material-body{padding:18px}.material-image-link{display:block;margin:14px 0;text-align:center}.material-image{display:block;max-width:100%;width:auto;height:auto;max-height:560px;object-fit:contain;margin:auto;border:1px solid var(--line);border-radius:8px;background:#fff}.material-image-link.image-error{min-height:80px;border:1px dashed var(--red);display:grid;place-items:center;color:var(--red)}.material-missing{margin:18px 0;padding:16px;border-radius:8px;background:#fff0dc;color:#923f24}.material-missing p{line-height:1.8}.group-progress{font-size:12px;color:#8c7458}@media(max-width:600px){.material-head{align-items:flex-start;flex-direction:column}.material-head .btn{width:100%}}
/* Lifecycle controls wrap on smaller screens without changing the study-room layout. */
.coach-panel{margin:22px 0;padding:20px;background:#fcf9f1;border:1px solid #e6d9c3;border-left:3px solid #bd994c;border-radius:8px;line-height:1.85;overflow-wrap:anywhere}.coach-panel h4{margin:18px 0 6px;color:#8f2929}.coach-panel li{margin-bottom:8px}.coach-panel .card-actions{flex-wrap:wrap}.coach-panel details{margin-top:16px}.analysis-warning{padding:12px;background:#fff0dc;color:#923f24;border-radius:6px}.coach-replies p{padding:12px;border-bottom:1px solid #e7ddce}.coach-panel textarea{min-height:85px}#review-session .option{width:100%;text-align:left}#ai-settings label{display:block;margin:12px 0}#analysis-completion{overflow-wrap:anywhere}#analysis-completion .card-actions{flex-wrap:wrap}@media(max-width:600px){.coach-panel{padding:12px}.coach-panel .btn{white-space:normal}}
#exam-center .resource-row{gap:12px;flex-wrap:wrap}#exam-center .resource-main{min-width:0;overflow-wrap:anywhere}#exam-center .exam-card>.btn{margin:6px 6px 0 0}
#ai-gateway .form-grid>label{display:grid;gap:7px;min-width:0;margin:10px 0}#ai-gateway .form-grid>.field,#ai-gateway .form-grid>label>.field{width:100%;min-width:0}#ai-gateway .form-grid>label:has(input[type=checkbox]){display:flex;align-items:center}#ai-gateway details{margin:16px 0}#ai-gateway summary{cursor:pointer;color:#8f2929}#ai-gateway .card-actions{flex-wrap:wrap}#ai-gateway .table-wrap{overflow:auto}#ai-gateway .table-wrap table{width:100%}#ai-gateway{overflow-wrap:anywhere}@media(max-width:600px){#ai-gateway .form-grid{grid-template-columns:1fr}#ai-gateway .btn{white-space:normal}}
/* Local question images retain their original aspect ratio in every answer surface. */
.option .option-photo{display:block;max-width:100%;width:auto;height:auto;max-height:280px;object-fit:contain;margin:8px 0}
.bank-pagination{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:24px 0}
.bank-pagination [aria-current="page"]{outline:2px solid var(--red);outline-offset:2px;font-weight:700}
.bank-pagination #bank-jump{width:76px}
.bank-pagination button:disabled{opacity:.4;cursor:not-allowed}

/* Formal mock guessing and post-exam review keep independent, combinable states. */
.exam-numbers button{position:relative}.exam-numbers button small{position:absolute;right:-5px;top:-8px;font-size:11px;line-height:1}.exam-numbers .guessed{box-shadow:inset 0 -3px 0 #d59b32}.exam-numbers .answered.guessed{background:#a72b2b;color:#fff}.review-numbers{display:grid;grid-template-columns:repeat(auto-fill,minmax(52px,1fr));gap:10px;margin-top:18px}.review-numbers button{min-height:54px;border:2px solid transparent;border-radius:8px;display:grid;place-items:center;gap:2px;cursor:pointer}.review-numbers button b{font-size:13px}.review-numbers button small{font-size:11px}.review-numbers .correct{background:#edf6ef;color:#39704b}.review-numbers .wrong{background:#a72b2b;color:#fff}.review-numbers .unanswered{background:#efefed;color:#777}.review-numbers .flagged{border-color:#c59436}.review-numbers .guessed:not(.wrong){box-shadow:inset 0 -4px 0 #d59b32}.review-detail{border-left:4px solid transparent;padding-left:16px;scroll-margin-top:20px}.review-detail.review-wrong{border-left-color:#b1282d;background:#fff8f7}.review-detail.review-wrong summary,.review-detail.review-wrong summary strong{color:#a21f25}.review-detail.review-correct{border-left-color:#6c9478}.review-detail.review-unanswered{border-left-color:#aaa49c}.review-detail.review-focus{animation:review-focus 1.6s ease}.guess-note{display:inline-block;background:#fff1d2;color:#8a5c12;border-radius:6px;padding:7px 11px}.review-detail .option.correct{border-color:#6c9478;background:#edf6ef}.review-detail .option.wrong{border-color:#b1282d;background:#fff0ef;color:#8d2025}@keyframes review-focus{0%,45%{box-shadow:0 0 0 5px #d7aa4966;background:#fff7df}100%{box-shadow:none}}

/* Long-form material reading is distinct from the editing form. */
.note-card{cursor:pointer}.note-card:focus-visible{outline:2px solid var(--red);outline-offset:3px}dialog:has(.note-viewer){width:min(900px,90vw);max-height:92vh}.note-viewer{display:flex;flex-direction:column;max-height:82vh}.note-viewer-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12px;padding-bottom:15px;border-bottom:1px solid var(--line)}.note-viewer-content{white-space:pre-wrap;overflow-y:auto;line-height:2;font-size:16px;font-family:'SimSun',serif;padding:22px 8px 22px 0;overflow-wrap:anywhere}.note-viewer .form-actions{flex-shrink:0;border-top:1px solid var(--line);padding-top:16px}
@media(max-width:600px){dialog:has(.note-viewer){width:94vw;max-height:92vh;padding:20px}.note-viewer{max-height:82vh}.note-viewer-content{font-size:15px;line-height:1.9}.review-numbers{grid-template-columns:repeat(5,minmax(0,1fr))}}
/* Knowledge dimension of the existing study room. */
.knowledge-layout{display:grid;grid-template-columns:286px minmax(0,1fr);gap:22px;align-items:start}
.knowledge-directory{position:sticky;top:88px;max-height:calc(100vh - 112px);overflow:auto;padding:20px}
.knowledge-directory h2{font-size:17px;margin-bottom:18px}
.knowledge-directory summary{cursor:pointer;font-size:13px;padding:2px 0}
.knowledge-node{display:inline-block;padding:7px 9px;border-radius:6px;color:var(--ink,#362e2b);font-size:12px;line-height:1.5;text-decoration:none}
.knowledge-node:hover,.knowledge-node.active{background:#f8eee9;color:#a9232b}
.knowledge-branch{margin-left:10px;padding-left:8px;border-left:1px solid #eee4db}
.knowledge-branch>.knowledge-node{display:block}
.knowledge-content{min-width:0}
.knowledge-content>.panel{margin-bottom:18px}
.knowledge-content li{margin:10px 0;line-height:1.8}
.knowledge-breadcrumb{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px;font-size:11px;color:#927b6a}
.knowledge-breadcrumb a{color:#a9232b;text-decoration:none}
.knowledge-tags{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin:14px 0}
.knowledge-tags a{text-decoration:none;cursor:pointer;white-space:normal}
.knowledge-tags a:hover{outline:1px solid #c5a475}
.knowledge-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}
.knowledge-metrics div{padding:14px;background:#faf7f2;border-radius:8px}
.knowledge-metrics b{display:block;font-size:25px;color:#a9232b}
.knowledge-metrics small{display:block;margin-top:6px;color:#8b7e73;font-size:11px}
.knowledge-related-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 0;border-top:1px solid #eee5da}
.knowledge-related-row strong{display:block;line-height:1.8;font-size:13px;font-weight:500}
.knowledge-related-row small{display:block;margin-top:7px;color:#8b7e73;font-size:11px}
.knowledge-related-row button{flex-shrink:0}
.knowledge-suggestion label{display:block;margin:14px 0;font-size:12px}
.knowledge-suggestion .field{display:block;width:100%;margin-top:6px}
#knowledge-search .field{flex:1;min-width:100px}
#knowledge-tree{height:min(62vh,640px);min-height:260px;overflow:auto;position:relative;contain:strict;overscroll-behavior:contain;scroll-behavior:auto}
.knowledge-directory{overflow:hidden;padding:18px}
.knowledge-tree-space{position:relative;width:100%}
.knowledge-tree-window{position:absolute;top:0;left:0;right:0;will-change:transform}
.knowledge-tree-row{height:36px;display:flex;align-items:center;min-width:0;border-radius:6px;box-sizing:border-box}
.knowledge-tree-row.active{background:#f8eee9;color:#a9232b;box-shadow:inset 3px 0 #a9232b}
.knowledge-tree-row:hover{background:#faf5ef}
.knowledge-tree-row .knowledge-node{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0;font-size:13px;padding:7px 3px}
.knowledge-toggle{width:24px;min-width:24px;height:28px;border:0;background:transparent;color:#9c8975;cursor:pointer;font-size:10px;padding:0}
.knowledge-toggle:disabled{opacity:.4;cursor:default}
.knowledge-search-list{max-height:300px;overflow:auto;margin-bottom:18px}
.knowledge-search-hit{display:block;padding:10px 5px;color:#a9232b;text-decoration:none;border-bottom:1px solid #eee5da}
.knowledge-search-hit small{display:block;color:#8b7e73;margin-top:5px;font-size:11px}
.knowledge-mastery{display:flex;align-items:center;gap:14px;color:#a9232b;font-size:13px;margin-top:18px}
.knowledge-mastery progress{flex:1;height:8px;accent-color:#a9232b}
.knowledge-example,.knowledge-candidate{padding:18px 0;border-top:1px solid #eee5da}
.knowledge-candidate-content{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;background:#faf7f2;padding:12px;max-height:380px;overflow:auto}
#knowledge-new-candidate{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap;margin:20px 0}
#knowledge-new-candidate label{font-size:12px}
.knowledge-merge{display:flex;gap:8px;margin-top:12px}
@media(max-width:900px){.knowledge-layout{grid-template-columns:1fr}.knowledge-directory{position:static;max-height:340px}.knowledge-related-row{align-items:flex-start}.knowledge-metrics{gap:7px}.knowledge-metrics div{padding:10px}}

/* Account profiles and administration */
.avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.profile-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px;align-items:start}
.profile-card{text-align:center;position:sticky;top:85px}.profile-card h1{font-size:26px;margin:20px 0 4px}.profile-handle{color:var(--muted,#766e67);margin:0 0 16px}
.profile-avatar{display:block;width:156px;height:156px;margin:8px auto;object-fit:cover;border-radius:50%;border:4px solid #f3e8db}.avatar-letter{background:#a9232b;color:#fff;font-size:64px;line-height:148px;font-weight:600}
.profile-meta{text-align:left;margin:24px 0}.profile-meta dt{font-size:12px;color:#7c736c;margin-top:14px}.profile-meta dd{margin:4px 0;font-size:13px;overflow-wrap:anywhere}
.profile-main{display:grid;gap:20px}.profile-main .heading{margin-bottom:0}.account-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.account-stats .panel{display:grid;gap:8px;padding:20px}.account-stats strong{font-size:28px}.account-stats span{font-size:13px;color:#776f65}
.account-table{overflow-x:auto}.account-table table{width:100%;border-collapse:collapse;text-align:left}.account-table th,.account-table td{padding:14px 10px;border-bottom:1px solid #eee4d8;vertical-align:middle;white-space:nowrap}.account-id{display:block;font-size:10px;color:#867b70;max-width:190px;overflow:hidden;text-overflow:ellipsis}.login .secondary{margin-top:14px}.profile-main h3{margin:0 0 20px}
@media(max-width:800px){.profile-layout{grid-template-columns:1fr}.profile-card{position:static}.account-stats{grid-template-columns:repeat(2,1fr)}.profile-meta{text-align:center}}

/* Personal knowledge evidence connects today's plan with practice and review. */
.daily-plan>details{margin:18px 0}.daily-plan summary,.knowledge-example summary{cursor:pointer;color:#8f2929}
.daily-focus-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}
.daily-focus-card{padding:16px;border:1px solid #e8dfd0;border-left:3px solid #bb964d;border-radius:8px;background:#fcf9f1;min-width:0;overflow-wrap:anywhere}
.daily-focus-card p{line-height:1.8;margin:10px 0 0}.daily-focus-card .section-title{margin-bottom:0;gap:8px}.daily-focus-card .tag{font-size:11px;margin:0}
.daily-knowledge-link{font-weight:600;color:#982a2c;text-decoration:none;line-height:1.7}.daily-knowledge-link:hover,.learning-outcome a:hover,.knowledge-sources a:hover{text-decoration:underline}
.daily-plan-balance{display:grid;grid-template-columns:minmax(140px,.7fr) minmax(0,1.3fr);gap:20px;margin:22px 0;border-top:1px solid #e8dfd0;padding-top:16px}.daily-plan-balance h3{font-size:14px}.daily-plan-balance strong{font-size:22px;color:#9c262b}
.daily-evidence{padding:14px 0;border-top:1px solid #e8dfd0}.daily-evidence a,.daily-selection-reasons a,.learning-outcome a,.knowledge-sources a{color:#982a2c;text-decoration:none}.daily-selection-reasons{padding-left:23px}.daily-selection-reasons li{margin:14px 0;overflow-wrap:anywhere}.daily-selection-reasons p{margin:5px 0}
.learning-outcome-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.learning-outcome li{line-height:1.9;margin:8px 0}.learning-outcome ul{padding-left:18px}.learning-outcome>p{line-height:1.9}
.question-learning{background:#faf5eb;border:1px solid #e8dcc6;border-radius:8px;padding:18px;margin:18px 0;overflow-wrap:anywhere}.question-learning h4{margin:0 0 14px;color:#8f2929}.question-learning article+article{border-top:1px solid #e8dcc6;padding-top:14px;margin-top:14px}.question-learning .card-actions{margin-top:14px}.question-learning p{line-height:1.8;margin:8px 0}
.mastery-change{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:12px;color:#796a5b}.mastery-change b{color:#982a2c}.knowledge-daily-focus{background:#fcf7e9;border-left:3px solid #bb964d;padding:14px 16px;margin:18px 0}.knowledge-daily-focus h3{font-size:14px;margin:0}.knowledge-daily-focus p{line-height:1.8;margin:10px 0 0}.knowledge-daily-focus .section-title{margin:0}.knowledge-example summary{font-weight:600}.knowledge-example p{line-height:1.9}.knowledge-sources li{font-size:12px;line-height:1.9;overflow-wrap:anywhere}.knowledge-sources>p{line-height:1.9}
@media(max-width:700px){.daily-focus-grid,.learning-outcome-grid,.daily-plan-balance{grid-template-columns:minmax(0,1fr)}.daily-focus-card{padding:13px}.daily-plan-balance{gap:10px}.question-learning{padding:13px}.mastery-change{gap:7px}.knowledge-daily-focus{padding:12px}.knowledge-content .card-actions .btn{white-space:normal}}
.question-recommendation{margin:16px 0;padding:13px 16px;border:1px solid #e8dfd0;border-radius:7px;background:#fcfaf5}.question-recommendation summary{cursor:pointer;color:#8f2929}.question-recommendation p{line-height:1.8}
.daily-purpose-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0;padding:16px 0;border-block:1px solid var(--line)}.daily-purpose-summary>div{min-width:0}.daily-purpose-summary span{display:block;font-size:12px;color:var(--muted)}.daily-purpose-summary strong{display:block;margin-top:7px;font:26px Georgia,serif;color:var(--red)}.daily-purpose-summary small{margin-left:5px;font:11px 'Microsoft YaHei',sans-serif;color:var(--muted)}.daily-loading{min-height:220px}.exam-selection-settings{margin-top:18px;border:1px solid var(--line);border-radius:7px;padding:14px;font-size:12px;color:#796a5b}.exam-selection-settings legend{padding:0 8px}.exam-selection-settings>label{display:flex;align-items:center;gap:8px;margin:12px 0}.exam-selection-settings input[type=checkbox]{accent-color:var(--red)}.exam-selection-settings input[type=number]{width:80px}#exam-config input[readonly]{background:#f8f6f1}.exam-outcome-summary{display:flex;flex-wrap:wrap;gap:10px 24px;padding:16px 20px;border:1px solid var(--line);border-radius:8px;background:#fffdf8;margin-bottom:22px;color:#796a5b}.exam-existing-papers details{margin-top:14px}.exam-existing-papers summary{cursor:pointer;color:var(--red)}.question-recommendation summary .tag{margin-right:5px}@media(max-width:700px){.daily-purpose-summary{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.exam-outcome-summary{padding:14px;gap:12px}.exam-selection-settings{padding:10px}}
#knowledge-maintenance-content>section{margin-top:24px;padding-top:20px;border-top:1px solid #e8dfd0}#knowledge-maintenance-content>section:first-child{margin-top:0;padding-top:0;border:0}.knowledge-checkbox{display:flex!important;align-items:flex-start;gap:9px;line-height:1.8;margin:12px 0;font-size:12px}.knowledge-checkbox input{margin-top:4px;flex:none;accent-color:#a9232b}.knowledge-job-items{max-height:480px;overflow:auto;padding-right:4px}.knowledge-job-items article{padding:15px 0;border-bottom:1px solid #eee4d8;overflow-wrap:anywhere}.knowledge-job-items p{line-height:1.9;margin:8px 0}.knowledge-job-items details{margin:12px 0}.knowledge-job-items summary,.knowledge-backfill-progress summary,.knowledge-content-summary summary{cursor:pointer;color:#8f2929}.knowledge-job-items ul{padding-left:20px}.knowledge-job-items li{line-height:1.9}.knowledge-source-list{padding-left:20px}.knowledge-source-list li{line-height:1.9;margin:12px 0;overflow-wrap:anywhere}.knowledge-source-list small{display:block}.knowledge-pdf-import form>label,#knowledge-content-draft>label{display:block;margin:14px 0;font-size:12px}.knowledge-pdf-import input,.knowledge-pdf-import select,#knowledge-content-search input{margin-top:7px}.knowledge-review-example{margin:15px 0;padding:12px;background:#faf6ec;border-radius:7px}.knowledge-draft-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0}.knowledge-draft-fields label{font-size:12px}.knowledge-draft-fields textarea{display:block;margin:7px 0;width:100%;resize:vertical;line-height:1.8}#knowledge-content-draft fieldset{border:1px solid #e8dfd0;border-radius:7px;margin:18px 0;padding:16px}#knowledge-content-draft legend{font-size:13px;color:#8f2929}#knowledge-content-draft fieldset label{display:block;font-size:12px;margin:12px 0}#knowledge-content-draft textarea{width:100%;resize:vertical}#knowledge-content-search{display:flex;gap:10px;align-items:flex-end}#knowledge-content-search label{flex:1}#knowledge-content-search-results small{display:block;margin-top:6px;line-height:1.8}
@media(max-width:700px){.knowledge-draft-fields{grid-template-columns:1fr}#knowledge-content-search{display:block}#knowledge-content-search button{margin-top:10px}.knowledge-job-items{max-height:420px}}
@media(max-width:700px){#exam-center .resource-row{flex-wrap:wrap;align-items:flex-start}#exam-center .resource-row>.resource-main{flex:1 0 100%;width:100%}#exam-center .resource-row>.card-actions{flex:1 0 100%;width:100%;margin-top:0;flex-wrap:wrap;justify-content:flex-start}}

/* Release acceptance: intrinsic widths must stay inside their grid/flex cells. */
.page,.panel,.question-card,.profile-main,.exam-question,.exam-card,.metric,.stat,.task-main,.heading>div,.section-title>*{min-width:0}
.page,.panel,dialog,.question-card{overflow-wrap:anywhere}
.field,.form-grid>*{min-width:0;max-width:100%}
.form-row>.field,.form-grid>label>.field{width:100%}
.btn,.link,.tag{max-width:100%;white-space:normal;overflow-wrap:anywhere}
.form-actions,.exam-top,.section-title{flex-wrap:wrap}
img{max-width:100%;height:auto}
.resource-main strong{white-space:normal;overflow:visible;text-overflow:clip}
.table-scroll,.account-table,.tabs{max-width:100%;min-width:0;overscroll-behavior-x:contain}
#ai-gateway table{width:100%;table-layout:fixed;overflow-wrap:anywhere}
dialog{overflow:auto;max-height:calc(100dvh - 28px);max-width:calc(100vw - 24px)}
.dialog-head h2{min-width:0}.dialog-head .close{flex:none;min-width:44px;min-height:44px}
.toast{width:max-content;max-width:calc(100vw - 32px);overflow-wrap:anywhere;bottom:max(20px,env(safe-area-inset-bottom))}
.nav-close,.nav-scrim{display:none}
.login{width:calc(100% - 32px);margin-top:clamp(16px,12vh,100px)}
@media(max-width:900px){
 .sidebar{transform:translateX(-100%);width:min(280px,85vw);padding:24px 16px;box-shadow:15px 0 50px #0002;overscroll-behavior:contain;z-index:40}
 .sidebar.open{transform:translateX(0)}.shell{margin-left:0}.mobile-toggle{display:block;min-width:44px;min-height:44px;flex:none}
 .topbar{height:72px;padding:0 16px;gap:12px}.crumb{display:none}.top-actions{min-width:0;flex:1;gap:12px;justify-content:flex-end}
 .searchbox{width:min(380px,100%);min-width:0}.searchbox input{min-width:0}.searchbox kbd{display:none}
 .top-actions>button{flex:none;min-width:44px;min-height:44px}.avatar{width:44px;height:44px}
 .nav-close{display:block;position:absolute;right:8px;top:8px;min-width:44px;min-height:44px;font-size:28px}
 .nav-scrim:not([hidden]){display:block;position:fixed;inset:0;background:#30251e66;z-index:30}
 body.nav-open{overflow:hidden}.page{padding:24px}.profile-layout{grid-template-columns:minmax(0,1fr)}.profile-card{position:static}
 .exam-layout{grid-template-columns:minmax(0,1fr)}.exam-card{position:static}.exam-numbers{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));max-height:44dvh;overflow-y:auto;padding:5px;overscroll-behavior:contain}
 .exam-numbers button{min-height:44px}.exam-top{padding:18px;gap:12px}.exam-top>div{min-width:0}.exam-top strong{font-size:30px}
 .knowledge-directory{position:static;max-height:none}#knowledge-tree{height:min(36dvh,360px)}
}
@media(max-width:600px){
 .page{padding:20px 14px}.panel,.question-card{padding:16px}.topbar{height:64px;padding:0 8px;gap:5px}.top-actions{gap:5px}.searchbox{padding:8px;gap:5px}
 .btn,.option,.tab,.link{min-height:44px}.option{padding:13px 12px}.form-actions{justify-content:flex-start;flex-wrap:wrap}.form-actions>.btn{flex:1}
 .exam-top{align-items:flex-start}.exam-top>div:first-child{flex:1 0 100%}.exam-score{flex-wrap:wrap;gap:14px;padding:22px}.exam-score>strong{font-size:56px}.exam-score h2{font-size:20px}
 .exam-entry{grid-template-columns:minmax(0,1fr)}.metric-grid,.stats,.account-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.metric,.stat{padding:12px}
 .section-title{gap:8px}.section-title h2{font-size:15px}.knowledge-related-row,.material-head{flex-wrap:wrap}.focus-clock{font-size:54px;padding:20px 0}
 .knowledge-metrics{grid-template-columns:minmax(0,1fr)}.knowledge-mastery{flex-wrap:wrap}.knowledge-mastery progress{min-width:120px}
 dialog{padding:18px;max-height:calc(100dvh - 16px)}dialog:has(.note-viewer){padding:18px;max-height:calc(100dvh - 16px)}.note-viewer{max-height:calc(100dvh - 100px)}
 .field{font-size:16px}.hero h2{font-size:24px;letter-spacing:1px}.hero{padding:22px 18px}.heading h1{font-size:24px}
}
/* Keep the guess badge inside its answer-card touch target. */
.exam-numbers button small{right:2px;top:2px;font-size:10px}