/* v165 — visual alignment with MasterChoo v150 (assets/app.css).
   Preserves v164 structure, content, authentication, API routes and privileges.
   Reference palette: --ink #161616, --muted #7a7a7a, --line #eeeeee,
   --paper #fff, --hover #f7f7f7, --brand-red #c94d4d, --brand-navy #243b5a.
*/
:root {
  font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Pretendard,"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-size:14px;line-height:1.5;color:#161616;background:#fff;
  --ink:#161616;--muted:#7a7a7a;--faint:#a5a5a5;--line:#eeeeee;
  --line-strong:#dedede;--paper:#fff;--paper-soft:#fafafa;
  --hover:#f7f7f7;--selected:#f4f4f4;--brand-red:#c94d4d;
  --brand-navy:#243b5a;--radius:8px;
  --shadow:0 1px 2px rgba(15,15,15,.04),0 4px 12px rgba(15,15,15,.04);
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:#fff}
[hidden]{display:none!important}
body{font-size:14px;line-height:1.5}
button,input,textarea,select{font:inherit;color:inherit}
button{-webkit-tap-highlight-color:transparent}
button{cursor:pointer;border:1px solid var(--line-strong);background:#fff;color:#4c4c4c;border-radius:8px;padding:9px 12px;min-height:38px;font-size:12px;font-weight:650;transition:background .12s,border-color .12s}
button:hover{background:var(--hover)}
button:disabled{opacity:.45;cursor:not-allowed;background:#fafafa;color:#777}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid #626262;outline-offset:2px}
.primary,.primary:disabled{background:#111;color:#fff;border-color:#111}
.primary:hover{background:#000;border-color:#000}
.subtle{background:#fff;color:#5f5e5b;border:1px solid var(--line)}
.subtle:hover{background:#f7f7f7}
h1,h2,h3,p{overflow-wrap:anywhere}
h1{font-size:25px;letter-spacing:-.8px;line-height:1.32;margin:4px 0 5px;font-weight:780}
h2{font-size:16px;letter-spacing:-.2px}

/* Thin, unboxed header matches the original MasterChoo 'top' section. */
.topbar{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);background:#fff;padding:16px max(28px,calc((100vw - 1330px)/2))}
.brand{display:flex;align-items:center;min-width:0}
.brand-platform{display:flex;flex-direction:column;gap:2px;line-height:1}
.brand-platform strong{display:block;font-size:27px;font-weight:900;letter-spacing:-1.8px;white-space:nowrap}
.brand-platform strong span:first-child{color:var(--brand-red)}
.brand-platform strong span:nth-child(2){color:var(--brand-navy)}
.brand-platform small,.brand-masterchoo small{font-size:9px;color:#8a8f98;letter-spacing:1.7px;font-weight:750;margin-top:5px}
.brand-masterchoo{display:none;flex-direction:column;align-items:flex-start;gap:0}
.brand-masterchoo img{display:block;width:250px;height:auto;max-width:100%;object-fit:contain}
body[data-mode="academy"][data-academy-brand="masterchoo"] .brand-platform{display:none}
body[data-mode="academy"][data-academy-brand="masterchoo"] .brand-masterchoo{display:flex}
.top-actions{display:flex;align-items:center;gap:12px;min-width:0;justify-content:flex-end}
.top-actions #environment{white-space:nowrap;color:#979797;font-size:11px}
#logout{border:1px solid var(--line);background:#fff;color:#5f5e5b;border-radius:8px;min-height:38px;padding:8px 12px;font-weight:650}
#logout:hover{background:var(--hover)}
/* Equivalent to v150 opsNav / studentModeTabs: subtle gray track + white active item. */
.mode-tabs{display:inline-flex;align-items:center;gap:4px;padding:4px;background:#f6f6f5;border:1px solid #ededed;border-radius:12px;flex-shrink:0}
.mode-button{border:0;min-height:37px;border-radius:9px;background:transparent;padding:8px 14px;color:#737373;font-size:12px;font-weight:730;white-space:nowrap}
.mode-button:hover{background:#fdfdfd;color:#222}
.mode-button.active,.mode-button.active:hover{background:#fff;color:#111;box-shadow:0 1px 4px rgba(0,0,0,.09)}

/* Login: original MasterChoo white authbox on #f7f7f5. */
.login-wrap{min-height:calc(100vh - 86px);display:grid;place-items:center;background:#f7f7f5;padding:36px 18px}
.login-panel{width:min(100%,470px)}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px 34px;box-shadow:var(--shadow)}
.eyebrow{color:#939393;font-size:10px;font-weight:750;letter-spacing:1.45px}
.muted{color:var(--muted);margin:7px 0 0;line-height:1.65;font-size:12px}
.hint{font-size:11px;line-height:1.65;color:var(--muted)}
.error{color:#a83b34;min-height:18px}
.login-panel .muted{margin:8px 0 22px}
.login-panel form{display:grid;gap:13px}
.login-panel form button{width:100%;min-height:43px}
.login-panel label,.form-grid label{display:grid;gap:7px;color:#595959;font-size:12px;font-weight:640}
.login-panel input,.form-grid input,.form-grid select,.form-grid textarea,select{width:100%;min-width:0;border:1px solid var(--line-strong);background:#fff;border-radius:8px;padding:10px 11px;color:#161616;min-height:40px}
input:focus,select:focus,textarea:focus{border-color:#888}
textarea{resize:vertical}

.task-result-editor{flex-basis:100%;width:100%;min-width:220px;display:grid;gap:9px;padding:10px 0;border-top:1px solid var(--line);text-align:left}
.task-result-editor label{display:grid;gap:4px;font-size:12px}
.task-result-editor input:not([type=checkbox]),.task-result-editor textarea{width:100%;border:1px solid var(--line-strong);border-radius:8px;padding:8px 10px}
.task-result-tags{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.task-result-tags span{width:100%;color:var(--muted);font-size:11px}
.task-result-tags label{display:flex;align-items:center;gap:4px;padding:5px 7px;border:1px solid var(--line);border-radius:6px}
.task-result-tags input[type=checkbox]{margin:0}
.task-role-switch{display:flex;align-items:center;flex-wrap:wrap;gap:5px;margin-bottom:18px;padding:5px;background:#f5f5f5;border:1px solid var(--line);border-radius:10px;width:max-content;max-width:100%}
.task-role-switch button{border:0;background:transparent;color:#777;font-size:12px;font-weight:700;min-height:36px;padding:8px 15px}
.task-role-switch button.active{background:#fff;color:#111;box-shadow:0 1px 4px rgba(0,0,0,.09)}
/* Admin shell: unintrusive navigation + document-like content area. */
.layout{display:grid;grid-template-columns:214px minmax(0,1fr);min-height:calc(100vh - 86px);max-width:1480px;margin:auto}
.sidebar{background:#fff;border-right:1px solid var(--line);padding:27px 12px 20px;display:flex;flex-direction:column;gap:0;min-width:0}
.context-panel{padding:4px 11px 15px;border-bottom:1px solid var(--line);margin-bottom:14px}
.switch-label{display:block;color:#929292;font-size:11px;font-weight:650;letter-spacing:.1px;margin:0 0 9px}
.context-title{display:block;color:#1d1d1d;font-size:16px;letter-spacing:-.35px;font-weight:800;line-height:1.35}
.context-panel .side-caption{padding:7px 0 0;margin:0;font-size:11px;line-height:1.7;color:var(--muted)}
#academy-switch{max-width:100%;background:#fafafa;border:1px solid var(--line);min-height:40px;font-size:12px}
.sidebar nav{display:flex;flex-direction:column;gap:2px;min-width:0}
.nav-item{width:100%;border:0;background:#fff;text-align:left;color:#656565;border-radius:8px;padding:11px 13px;min-height:40px;font-size:12px;font-weight:620}
.nav-item:hover{background:#f7f7f7;color:#222}
.nav-item.active{background:#f3f3f3;color:#111;font-weight:800;box-shadow:inset 3px 0 0 #111}
.side-footer{margin-top:auto;border-top:1px solid var(--line);padding:16px 11px 5px;color:#999;font-size:10px;line-height:1.85}
.side-footer strong{font-weight:750;color:#777}
.main{padding:29px 32px 60px;width:100%;max-width:1220px;min-width:0;margin:0 auto}
.heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding-bottom:22px;margin-bottom:17px;border-bottom:1px solid var(--line)}
.heading h1{font-size:24px;margin-top:4px}
.heading .muted{margin:5px 0 0}
.heading #refresh{white-space:nowrap;min-height:37px;flex-shrink:0}

/* Statistics: exact v150 summary-strip approach; monochrome and zero shadow. */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin:0}
.stat{background:#fafafa;border:0;border-radius:12px;padding:16px 18px;min-height:100px}
.stat span{display:block;font-size:11px;font-weight:650;color:var(--muted)}
.stat strong{display:block;font-size:27px;line-height:1;margin-top:13px;font-weight:750;letter-spacing:-.8px;font-variant-numeric:tabular-nums;color:#111}

/* Flat bordered sections mirror v150 panels and operations cards. */
.block{background:#fff;border:1px solid var(--line);border-radius:12px;margin-top:15px;padding:19px 20px}
.block h2{font-size:14px;font-weight:760;margin:0 0 14px;line-height:1.4}
.table-scroll{width:100%;overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:620px}
th,td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:12px;line-height:1.55}
th{font-size:11px;font-weight:700;color:#777;background:#fafafa}
td{color:#4c4c4c;vertical-align:middle}
tbody tr:last-child td{border-bottom:0}
.pill{display:inline-flex;align-items:center;border-radius:5px;padding:3px 8px;background:#f1f1ef;color:#5f5f5f;font-size:10px;line-height:1.5;font-weight:650;white-space:nowrap}
.pill.off{background:#f6f6f6;color:#989898}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;align-items:end}
.form-grid .wide{grid-column:1/-1}
.form-grid button{align-self:end}
.actions{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.actions button{padding:7px 10px;min-height:34px;font-size:11px}
.alert{margin:0 0 14px;border-radius:8px;background:#f3f3f3;color:#555;padding:11px 13px;font-size:12px;line-height:1.55}
.alert.error{background:#fff2f1;color:#a83b34}
.empty{color:var(--muted);padding:34px 14px;text-align:center;font-size:12px}
.note{color:var(--muted);font-size:12px;line-height:1.7}
.section-actions{display:flex;justify-content:space-between;align-items:center;gap:12px}
.flag-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:14px}
.flag{display:flex;align-items:center;gap:9px;background:#fafafa;border:1px solid #f2f2f2;border-radius:9px;padding:11px;font-size:12px}
.flag input{width:16px;height:16px;accent-color:#111}
code{font-size:11px;background:#f7f7f7;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}

/* Platform home: keep C-card logic, shrink visual density to MasterChoo style. */
.platform-intro{padding:2px 0 17px;margin:0 0 15px;background:#fff;border:0;border-radius:0}
.platform-intro .eyebrow{font-size:10px}
.platform-intro h2{font-size:19px;font-weight:800;margin:6px 0 5px;letter-spacing:-.6px;color:#161616}
.platform-intro p{font-size:12px;color:var(--muted);margin:0;line-height:1.7}
.academy-section{margin-top:24px}
.academy-section .section-actions{margin-bottom:11px}
.academy-section h2{font-size:15px;margin:0;font-weight:780}
.academy-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.academy-card{border:1px solid var(--line);border-radius:12px;background:#fff;padding:17px;min-height:203px;display:flex;flex-direction:column;gap:7px;box-shadow:none}
.academy-card:hover{border-color:#d6d6d6}
.academy-card-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.academy-logo{width:35px;height:35px;border-radius:9px;background:#f2f2f2;color:#474747;display:grid;place-items:center;font-weight:800;font-size:16px}
.academy-card h3{margin:3px 0 0;font-size:14px;letter-spacing:-.2px;font-weight:760;color:#1d1d1d}
.academy-kind{margin:0;font-size:11px;color:var(--muted)}
.academy-card-meta{display:flex;flex-wrap:wrap;justify-content:space-between;border-top:1px solid var(--line);padding-top:11px;gap:5px;color:#8a8a8a;font-size:10px}
.academy-card-meta strong{font-weight:760;color:#333}
.academy-card-actions{display:flex;gap:6px;margin-top:auto;padding-top:4px}
.academy-card-actions button{flex:1;min-width:0;font-size:11px;padding:8px 6px;min-height:36px}
.target-select{display:flex;align-items:center;gap:11px;flex-wrap:wrap;background:#fafafa;border:1px solid var(--line);padding:13px 15px;border-radius:10px;margin-bottom:15px}
.target-select label{font-size:12px;font-weight:700;color:#4d4d4d;white-space:nowrap}
.target-select select{width:min(290px,100%);padding:9px 11px}
.target-select .note{flex-basis:100%;margin:0;font-size:11px}

/* In mobile teaching flow, actions must not disappear off-screen inside a wide table. */
.task-mobile{display:none}
.task-card{border:1px solid #eee;border-radius:8px;padding:13px;min-width:0;background:#fff}
.task-card+.task-card{margin-top:10px}
.task-card-head{display:flex;align-items:center;justify-content:space-between;gap:9px;font-size:13px;color:#161616}
.task-card-head .pill{font-weight:650}
.task-book{font-size:12px;line-height:1.6;margin:10px 0;color:#4c4c4c;overflow-wrap:anywhere}
.task-status{display:flex;gap:12px;align-items:center;padding:10px 0;border-top:1px solid #eee;color:#7a7a7a;font-size:11px}
.task-actions{padding-top:9px;border-top:1px solid #eee}
.task-actions button{flex:1;min-width:72px;min-height:39px}
@media(max-width:1170px){
 .academy-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
 .top-actions #environment{display:none}
}
@media(max-width:880px){
 .layout{grid-template-columns:1fr}
 .sidebar{border-right:0;border-bottom:1px solid var(--line);padding:12px 18px}
 .context-panel{padding:0 3px 10px;margin-bottom:8px}
 .sidebar nav{display:flex;flex-direction:row;gap:3px;overflow-x:auto;max-width:100%;scrollbar-width:none}
 .sidebar nav::-webkit-scrollbar{display:none}
 .nav-item{white-space:nowrap;width:auto;padding:9px 12px;min-height:38px;flex-shrink:0}
 .nav-item.active{box-shadow:none;border-bottom:2px solid #111;border-radius:7px 7px 2px 2px}
 .side-footer{display:none}
 .main{padding:20px 18px 40px}
 .flag-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:650px){
 .topbar{min-height:75px;height:auto;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;padding:13px 16px 10px}
 .brand-platform strong{font-size:25px}
 .brand-masterchoo img{width:205px}
 .top-actions{display:contents}
 .mode-tabs{grid-column:1/-1;grid-row:2;display:flex;min-width:0;width:100%;justify-content:center}
 #logout{grid-column:2;grid-row:1;white-space:nowrap}
 .mode-button{flex:1;min-height:39px}
 .heading{gap:10px;padding-bottom:17px;margin-bottom:15px}
 .heading h1{font-size:21px}
 .heading #refresh{font-size:11px;padding:8px}
 .grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}
 .stat{min-height:83px;padding:12px 10px;border-radius:10px}
 .stat span{font-size:10px;letter-spacing:-.2px}
 .stat strong{font-size:24px;margin-top:10px}
 .academy-cards{grid-template-columns:1fr}
 .academy-card{min-height:auto;gap:7px}
 .academy-section .section-actions{align-items:flex-start;flex-wrap:wrap}
 .block{padding:16px 15px}
 .flag-list{grid-template-columns:repeat(2,minmax(0,1fr))}
 .flag{padding:10px 8px;gap:6px;font-size:11px}
 .login-panel{padding:27px 24px}
 .form-grid{grid-template-columns:1fr}
 .target-select label{white-space:normal}
 .login-panel input,.form-grid input,.form-grid select,.form-grid textarea{font-size:16px}
 .task-desktop{display:none}
 .task-mobile{display:block}
}
@media(max-width:375px){.flag-list{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.stat{min-height:auto}.stat strong{margin-top:6px}.brand-masterchoo img{width:180px}}
@media(prefers-reduced-motion:reduce){button{transition:none}}

/* Contain long identifiers and URLs in admin forms; keep tables in their own scroll region. */
.main,.block,.section-actions,.target-select,.academy-card{min-width:0}
.form-grid label,.flag{min-width:0}
.table-scroll{overscroll-behavior-x:contain}

/* TEST explanation for shared-account temporary assistant; not a real Auth identity. */
.form-note{grid-column:1/-1;margin:2px 0 0;color:#777;font-size:12px;line-height:1.65}

/* Student learning records from existing task results (TEST v169). */
.student-record-counts{display:flex;gap:16px;flex-wrap:wrap;margin:15px 0 21px;font-size:13px;color:#666}
.student-record-counts strong{font-size:17px;color:#161616}
.learning-history,.learning-next{padding-left:18px;margin:10px 0 23px;line-height:1.75}
.learning-entry{margin:0 0 15px;padding:0 0 14px;border-bottom:1px solid #eee;overflow-wrap:anywhere}
.learning-entry-head{display:flex;justify-content:space-between;align-items:flex-start;gap:9px;flex-wrap:wrap}
.learning-entry p{margin:7px 0 0;font-size:13px;line-height:1.5}
#student-activity .block h3{font-size:15px;margin:20px 0 8px}

/* Student cards avoid horizontal-scroll tables on narrow viewports. */
.student-mobile{display:none}
.student-card{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid #eee}
.student-card:last-child{border-bottom:0}
.student-card p{margin:5px 0;font-size:12px;color:#777}
.student-card button{flex-shrink:0}
@media(max-width:650px){.student-desktop{display:none}.student-mobile{display:block}}

/* v174 TEST: low-key text warning for a likely mismatch; confirmation occurs on submit. */
.form-note.subject-warning{color:#885d31;font-weight:650}

/* v176 TEST: compact real-class preparation groups; no decorative colored cards. */
.prep-lesson-group{margin:13px 0 18px;padding:0 0 12px;border-bottom:1px solid var(--line)}
.prep-lesson-group:last-child{border-bottom:0;margin-bottom:0}
.prep-group-title{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:4px 0 7px}
.prep-group-title strong{font-size:14px;font-weight:750}
.prep-group-title span{font-size:12px;color:var(--muted)}
.prep-task-list{list-style:none;margin:0;padding:0}
.prep-task-item{padding:11px 0;border-top:1px solid #f0f0f0;line-height:1.6}
.prep-task-item:first-child{border-top:0}
.prep-task-item strong{font-weight:750}
.prep-task-item .note{margin:5px 0}
.prep-task-item .actions{margin-top:9px;display:flex;gap:8px;flex-wrap:wrap}

/* v179 TEST: compact explicit tag editor in desktop table and mobile task cards. */
.task-tag-editor{display:inline-flex;align-items:center;gap:6px;flex-wrap:wrap}
.task-tag-editor[hidden]{display:none!important}
.task-tag-editor select{max-width:135px;min-height:34px;padding:4px 7px;border:1px solid var(--line);border-radius:7px;background:white;color:var(--text)}

/* v180 TEST: compact, readable student-unit weakness summaries. */
.weakness-list{display:grid;gap:8px;margin:8px 0 14px}
.weakness-item{padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:transparent}
.weakness-item strong{font-size:13px}
.weakness-item .note{margin:4px 0 0}

/* v181 TEST: lesson-specific weakness preview shown after the existing task checklist. */
.prep-weaknesses{margin:12px 0 0;padding:10px 0 4px;border-top:1px dashed var(--line)}
.prep-weaknesses h4{margin:0 0 8px;font-size:13px;font-weight:750}
.prep-weaknesses .weakness-list{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:7px}
.prep-weaknesses .weakness-item{padding:9px 11px}

/* v182 TEST: in-class checking is temporary until review outcome + memo is saved. */
.prep-review-control{margin-top:8px}
.prep-review-toggle{display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-size:13px;font-weight:650}
.prep-review-toggle input{width:17px;height:17px;margin:0}
.prep-review-actions{margin:9px 0 1px!important}
.prep-review-actions[hidden]{display:none!important}

/* v183 TEST: in-place short review note editor; no browser prompt in class preparation. */
.prep-review-editor{display:grid;gap:8px;margin:10px 0;padding:11px;border:1px solid var(--line);border-radius:8px}
.prep-review-editor[hidden]{display:none!important}
.prep-review-editor label{display:grid;gap:5px;font-size:13px;font-weight:650}
.prep-review-editor textarea{display:block;width:100%;box-sizing:border-box;min-height:62px;resize:vertical;border:1px solid var(--line);border-radius:7px;padding:8px;font:inherit}
.prep-review-editor .actions{margin:0}

/* v184 TEST: short save-confirmation receipt; no persistent content beyond backend history. */
.review-receipt{border:1px solid var(--line);border-left:3px solid currentColor;border-radius:8px;padding:12px 14px;margin-bottom:14px}
.review-receipt strong{font-size:14px}
.review-receipt p{margin:6px 0}
.review-receipt .actions{margin-top:9px;gap:8px;flex-wrap:wrap}

/* v185 TEST: collapsible class preparation; readable without opening every lesson. */
details.prep-lesson-group > summary.prep-group-title{cursor:pointer;list-style:none;justify-content:flex-start}
details.prep-lesson-group > summary.prep-group-title::-webkit-details-marker{display:none}
details.prep-lesson-group > summary.prep-group-title::before{content:'▸';font-size:14px;color:var(--muted);width:12px;flex:none}
details.prep-lesson-group[open] > summary.prep-group-title::before{content:'▾'}
details.prep-lesson-group > summary.prep-group-title > span{margin-left:auto}
details.prep-lesson-group > summary.prep-group-title:focus-visible{outline:2px solid currentColor;outline-offset:3px}
.prep-group-content{padding:4px 0}
@media(max-width:560px){details.prep-lesson-group > summary.prep-group-title{align-items:flex-start}details.prep-lesson-group > summary.prep-group-title > span{margin-left:24px}}

/* v186 TEST: discreet shortcut from class weakness preview to editable task draft. */
.prep-weaknesses .weakness-item button[data-weakness-instruction]{margin-top:8px;font-size:12px}

.task-result-editor[hidden],.task-result-tags[hidden],.task-result-feedback[hidden]{display:none!important}
.task-result-feedback{margin:0;padding:6px 0;font-size:12px;color:var(--muted)}
.task-result-feedback.error{color:#a33}

/* v190: lightweight teacher work shortcuts in academy overview */
.teacher-quick-links{margin:13px 0 10px;gap:8px;flex-wrap:wrap}
.teacher-quick-links button{min-height:41px}

/* v191 — teacher names and quick inline edit */
.teacher-display-name-control{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.teacher-name-edit{display:flex;align-items:center;gap:5px;flex-wrap:wrap;width:100%;min-width:180px}
.teacher-name-edit input{width:min(210px,100%);flex:1 1 145px;min-height:37px;padding:7px 9px;border:1px solid var(--line-strong);border-radius:8px}
.teacher-display-name-control .primary{min-width:52px}

/* v192 TEST: compact schedule and individual attendance editor */
.teacher-lesson-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:11px 0}
.teacher-lesson-row strong{display:block;font-size:13px}
.teacher-lesson-row .note{display:block;font-size:11px}
.teacher-lesson-row button{white-space:nowrap}
.teacher-schedule-subtitle{font-size:13px;margin:19px 0 5px}
.lesson-attendance-panel{margin-top:12px}
.lesson-attendance-list{display:grid;gap:0;border-top:1px solid var(--line)}
.lesson-attendance-student{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:11px 5px}
.lesson-attendance-student strong{display:block;font-weight:700}
.lesson-attendance-student small{font-size:11px;color:var(--muted);display:block}
.lesson-attendance-student select{width:160px;max-width:50%;min-width:125px}
@media(max-width:560px){.teacher-lesson-row{align-items:flex-start}.teacher-lesson-row button{font-size:11px;min-width:110px}.lesson-attendance-student select{min-width:120px}}

/* v193 TEST: classroom notes and read-only preparation carried to later lessons */
.lesson-notes{border-top:1px solid var(--line-strong);margin:24px 0 10px;padding-top:19px}
.lesson-notes h3{font-size:14px;margin:2px 0 12px}
.lesson-notes form{display:grid;gap:11px}
.lesson-notes label{display:grid;gap:6px;font-size:12px;color:#555;font-weight:650}
.lesson-notes textarea{width:100%;min-height:66px;padding:10px;border:1px solid var(--line-strong);border-radius:8px}
.lesson-preparation-previous{border-left:3px solid #bcbcbc;background:#fafafa;padding:12px 15px;margin:9px 0 17px}
.lesson-preparation-previous strong{font-size:12px}
.lesson-preparation-previous p{margin:6px 0;white-space:pre-wrap}

/* v194: compact student-scoped classroom notes, no extra cards at rest */
.student-class-notes{margin:21px 0;border-top:1px solid var(--line-strong);padding-top:17px}
.student-class-notes>h3{font-size:14px;margin:0 0 5px}
.student-notes-list{border-top:1px solid var(--line);margin-top:12px}
.student-note-item{border-bottom:1px solid var(--line);padding:0 4px}
.student-note-item summary{display:flex;align-items:center;gap:13px;flex-wrap:wrap;cursor:pointer;padding:12px 3px;list-style:none}
.student-note-item summary::-webkit-details-marker{display:none}
.student-note-item summary:before{content:'▸';font-size:13px;color:var(--muted)}
.student-note-item[open] summary:before{content:'▾'}
.student-note-item form{display:grid;gap:10px;padding:4px 12px 16px}
.student-note-item label{display:grid;gap:5px;font-size:12px;font-weight:650;color:#555}
.student-note-item textarea{width:100%;min-height:59px;border:1px solid var(--line-strong);border-radius:8px;padding:9px 10px}
.student-last-check{margin:2px 13px 12px;background:#fafafa;border-left:2px solid #bcbcbc;padding:10px 12px;font-size:12px;white-space:pre-wrap}
.student-last-check .note{display:block;margin-top:5px}
.student-note-feedback{font-size:12px;color:var(--muted);align-self:center}

/* v195 — teacher daily closure summary / handoff */
.daily-close-row{display:flex;gap:16px;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:12px 0}
.daily-close-row>div{min-width:0;flex:1}
.daily-close-row strong{font-size:13px;display:block}
.daily-close-row .note{display:block;white-space:pre-wrap;margin:4px 0}
.daily-close-flags{font-size:12px;color:#555;margin:5px 0;overflow-wrap:anywhere}
.daily-close-row button{flex-shrink:0}
@media(max-width:560px){.daily-close-row{align-items:flex-start;gap:9px}.daily-close-row button{font-size:11px;padding:8px 9px}}

/* v196 — view existing pending exercise mistakes inside the selected class */
.class-task-prep{border-top:1px solid var(--line-strong);margin:20px 0;padding-top:16px}
.class-task-prep>details>summary{cursor:pointer;padding:5px 0 12px;font-size:13px}
.class-task-student{padding:8px 3px;border-bottom:1px solid var(--line)}
.class-task-student summary{font-size:12px;cursor:pointer}
.class-task-student ul{list-style:disc;padding-left:25px;font-size:12px}
.class-task-student li{padding:8px 0}
.class-task-student li p{margin:5px 0;white-space:pre-wrap;overflow-wrap:anywhere}
.class-task-prep .actions{margin:12px 0}

/* v197 — quick inline lesson editor and collapsed administration on teacher home */
.teacher-admin-details{margin:18px 0;border-top:1px solid var(--line);padding-top:8px}
.teacher-admin-details>summary{cursor:pointer;font-size:12px;color:var(--muted);padding:10px 4px}
.lesson-quick-panel{border:1px solid var(--line-strong);border-radius:10px;margin:12px 0 20px;padding:14px 16px;scroll-margin-top:100px}
.lesson-quick-panel[hidden]{display:none!important}
.teacher-inline-head{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:0 0 12px;margin:0 0 12px}
.teacher-inline-head strong{font-size:14px}
.teacher-inline-head button{font-size:12px}

/* v198 – understated priority ordering; future classes remain visually neutral. */
.daily-priority-caption{margin:4px 0 11px;font-size:12px;line-height:1.5}
.daily-close-attention{border-left:3px solid #9a9a91;padding-left:12px;margin-left:-12px}
.lesson-attendance-student[data-needs-attendance="true"]{background:rgba(130,128,115,.065)}
.lesson-attendance-student[data-needs-attendance="true"] strong:after{content:' · 미기록';font-size:11px;font-weight:500;color:var(--muted)}

/* v200: role-specific navigation respects hidden state */
#academy-nav .nav-item[hidden]{display:none!important}

/* v201 TEST: the three independent academy entrypoints reuse a consistent admin UI. */
.brand-academy{display:none;flex-direction:column;line-height:1.2;gap:3px}
.brand-academy strong{font-size:21px;letter-spacing:-.6px;font-weight:800}
.brand-academy small{font-size:10px;letter-spacing:.06em;color:var(--muted)}
body[data-academy-site] .brand-platform{display:none}
body[data-academy-site] .brand-masterchoo{display:none}
body[data-academy-site="masterchoo"] .brand-masterchoo{display:flex}
body[data-academy-site="haynes"] .brand-academy,
body[data-academy-site="gangjeokjung"] .brand-academy{display:flex}
body[data-academy-site] #mode-tabs,body[data-academy-site] #platform-switcher,
body[data-academy-site] #platform-nav,body[data-academy-site] #academy-switcher{display:none!important}

/* v203: SaaS administration and each school's daily workspace have separate entries. */
body{--school-accent:#424242;--school-tint:#f7f7f5}
body[data-academy-site="haynes"]{--school-accent:#31556a;--school-tint:#f3f7f9}
body[data-academy-site="gangjeokjung"]{--school-accent:#3a6152;--school-tint:#f3f7f4}
body[data-entry="platform"]{background:#f7f8fa}
body[data-entry="platform"] .sidebar{background:#f7f8fa}
body[data-entry="platform"] .main{background:#fff}
body[data-entry="platform"] .brand-masterchoo{display:none}
body[data-entry="platform"] .brand-platform{display:flex}
.login-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:70px;align-items:center;max-width:1120px;margin:55px auto;padding:20px 32px}
.login-panel{width:100%;max-width:none;margin:0}
.entry-story{min-width:0;padding:20px 0}
.entry-story h2{font-size:36px;line-height:1.45;letter-spacing:-1.5px;font-weight:750;margin:18px 0}
.entry-story>p{color:var(--muted);font-size:14px;line-height:1.9;max-width:430px}
.entry-story ol{padding:0;list-style:none;counter-reset:step;margin:35px 0 0}
.entry-story li{counter-increment:step;display:grid;grid-template-columns:28px 82px 1fr;gap:10px;align-items:baseline;padding:17px 0;border-top:1px solid var(--line);font-size:12px}
.entry-story li:before{content:'0' counter(step);font-size:11px;color:var(--school-accent)}
.entry-story li span{color:var(--muted);line-height:1.7}
.entry-story .entry-caption{margin-top:35px;border-top:1px solid var(--line);padding-top:20px}
.academy-directory{display:grid;margin-top:24px;border-top:1px solid var(--line);padding-top:10px}
.academy-directory a{display:flex;justify-content:space-between;gap:10px;padding:12px 0;text-decoration:none;color:var(--ink);font-size:12px}
.academy-directory a:hover,.academy-entry-link:hover{text-decoration:underline}
.academy-directory a:focus-visible,.academy-entry-link:focus-visible{outline:2px solid currentColor;outline-offset:3px}
.academy-entry-link{display:block;margin:10px 0 16px;color:var(--brand-navy);font-size:12px;text-underline-offset:4px}
.platform-intro{padding:10px 0 26px}
.platform-intro h2{font-size:30px;letter-spacing:-1px;line-height:1.5;margin:10px 0}
.platform-intro p{line-height:1.8;color:var(--muted)}
.academy-card[data-brand="haynes"] .academy-logo{color:#31556a;background:#f3f7f9}
.academy-card[data-brand="gangjeokjung"] .academy-logo{color:#3a6152;background:#f3f7f4}
.academy-workspace-intro{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding:5px 0 22px;border-bottom:1px solid var(--line);margin-bottom:20px}
.academy-workspace-intro h2{font-size:23px;letter-spacing:-.8px;line-height:1.45;margin:10px 0}
.academy-workspace-intro p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}
.workspace-school{font-size:11px;color:var(--school-accent);border:1px solid var(--line);padding:6px 10px;border-radius:6px;white-space:nowrap}
.workspace-shortcuts{display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:10px;margin:0 0 28px}
.workspace-shortcuts button{display:flex;flex-direction:column;gap:10px;text-align:left;align-items:flex-start;border:1px solid var(--line);background:var(--school-tint);padding:17px 15px;min-width:0}
.workspace-shortcuts button:hover{border-color:var(--school-accent)}
.shortcut-number{font-size:10px;font-weight:500;color:var(--school-accent)}
.workspace-shortcuts strong{font-size:13px;line-height:1.6}
.workspace-shortcuts small{font-size:11px;color:var(--muted);font-weight:400;line-height:1.8}
.workspace-empty{padding:20px;background:var(--school-tint);line-height:1.8}
.teacher-admin-details .actions{margin-top:15px}
body[data-academy-site] .nav-item.active{color:var(--school-accent);background:var(--school-tint)}
@media(max-width:880px){
 .login-wrap{gap:30px;padding:15px 24px;margin:25px auto}
 .entry-story h2{font-size:28px}
 .entry-story li{grid-template-columns:22px 1fr}
 .entry-story li span{grid-column:2}
 #academy-context{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-bottom:12px}
 #academy-context .switch-label{margin:0}
 #academy-context .side-caption{padding:0;margin-left:auto}
}

/* v204 academy shell. Verified v150 source: index.html; assets/app.css
   .wrap/.top (63–64), .opsNav (914–920), .opsSection/.opsTodayWorkspace
   (942–947), .studentModeTabs (267), mobile navigation (389–448).
   Scoped to independent academies; no legacy script, API or global CSS import. */
body[data-academy-site] .layout{display:block;max-width:1240px;padding:0 28px 64px;min-height:0}
body[data-academy-site] .sidebar{display:none}
body[data-academy-site] .topbar{max-width:1240px;margin:auto;padding:30px 28px 8px;border:0;min-height:0}
body[data-academy-site] .main{padding:12px 0 0;min-width:0}
body[data-academy-site] .brand-masterchoo img{width:340px}
body[data-academy-site] .brand-masterchoo small{display:none}
#operations-tools{display:flex;gap:6px;flex-wrap:wrap}
body[data-academy-site] .login-wrap{display:block;min-height:calc(100vh - 100px);max-width:none;margin:0;padding:48px 20px;background:#f7f7f5}
body[data-academy-site] .login-panel{max-width:470px;margin:0 auto;padding:34px 36px 36px}
body[data-academy-site] .heading{margin-bottom:14px}
body[data-academy-site] .heading h1{font-size:25px;font-weight:850;letter-spacing:-.045em;color:#171b20}
body[data-academy-site] .academy-workspace-intro{border:0;margin:0 0 14px;padding:0}
body[data-academy-site] .academy-workspace-intro h2{font-size:16px;margin:5px 0}
body[data-academy-site] .workspace-shortcuts.operations-tools{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 16px}
body[data-academy-site] .operations-tools button{display:inline-block;min-width:0;padding:8px 12px;background:#fff;font-size:12px}
.operations-identity{display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap}
.operations-identity strong{font-size:14px}.operations-identity span{font-size:11px;color:var(--muted);margin-left:10px}
.roleViews{display:flex;gap:5px;flex-wrap:wrap}.roleViews button{font-size:11px;padding:5px 8px;min-height:34px}
.roleViews button[aria-pressed="true"]{background:#f4f4f4;color:#111}
.opsNav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;border:1px solid #eceff2;background:#f7f8f9;border-radius:14px;padding:5px;margin:16px 0 14px;box-shadow:0 4px 14px rgba(22,34,48,.05)}
.opsNav::-webkit-scrollbar{display:none}
.opsTabBtn{border:0;background:transparent;color:#6d747c;font-size:13px;font-weight:750;padding:10px 14px;border-radius:10px;white-space:nowrap;min-height:44px}
.opsTabBtn:hover{background:#fff;color:#20252b}.opsTabBtn.active{background:#fff;color:#17202a;box-shadow:0 2px 7px rgba(22,34,48,.08)}
.teacherNav .opsTabBtn{font-size:12px;padding:9px 12px}
body[data-academy-site] .block,.opsSection{background:#fff;border:1px solid #eceff2;border-radius:16px;padding:16px;margin:0 0 14px;box-shadow:0 3px 12px rgba(22,34,48,.045);min-width:0}
body[data-academy-site] .block>h2,.opsSection>h2{margin:0 0 12px;font-size:16px;font-weight:850;color:#20262d}
.opsTodayWorkspace{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(360px,.92fr);gap:14px;align-items:start;margin-bottom:14px}
.operations-lessons{min-width:0}.opsQuickMemoSection{min-height:320px}
.makeupSection form{display:grid;gap:10px}.makeupSection label{display:grid;gap:5px;font-size:12px;color:#465056;font-weight:600}
.makeupSection textarea,.makeupSection select{width:100%;box-sizing:border-box;border:1px solid #cbd1d5;border-radius:8px;padding:9px;background:#fff;color:#21292e;font:inherit}
.makeupList{display:grid;gap:12px}.makeupCard{padding:13px;background:#fcfcfb;border:1px solid #e5e8e9;border-radius:12px}
.makeupCardHead{display:flex;justify-content:space-between;align-items:center;gap:8px}.makeupReason{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px}
.makeupCard button{justify-self:start}.makeupSection form>button{justify-self:start}
.consultationSection form{display:grid;gap:10px}
.consultationSection label{display:grid;gap:5px;font-size:12px;color:#465056;font-weight:600}
.consultationSection textarea,.consultationSection input,.consultationSection select{width:100%;box-sizing:border-box;border:1px solid #cbd1d5;border-radius:8px;padding:9px;background:#fff;color:#21292e;font:inherit}
.consultationSection textarea{resize:vertical}.consultationSection button{justify-self:start}
.consultation-list{display:grid;gap:12px}.consultation-card{border:1px solid #e5e8e9;border-radius:12px;padding:13px;background:#fcfcfb}
.consultation-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.consultation-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media(max-width:540px){.consultation-fields{grid-template-columns:1fr}}
.quickMemoLabel{display:block;font-size:12px;color:#525960}.opsQuickMemoSection textarea{width:100%;box-sizing:border-box;margin:6px 0 8px;border:1px solid #c8ced2;border-radius:9px;padding:10px;resize:vertical;background:#fff;color:#252d35}
.quickMemoFeedback{min-height:16px;color:#5b636b;font-size:12px;margin:6px 0}
.quickMemoGrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}
.quickMemoCard{--paper:#f5eed1;position:relative;background:var(--paper);border:1px solid rgba(59,65,63,.10);border-radius:3px;padding:17px 12px 10px;min-height:105px;box-shadow:0 3px 6px rgba(0,0,0,.07);overflow:hidden}
.quickMemoCard::before{content:"";position:absolute;right:0;top:0;width:23px;height:23px;background:linear-gradient(45deg,rgba(0,0,0,.13) 0 49%,#fff 50%);box-shadow:-1px 1px 3px rgba(0,0,0,.09)}
.quickMemo-sage{--paper:#e0eadb}.quickMemo-lavender{--paper:#e9e2ec}.quickMemo-stone{--paper:#e9e7df}
.quickMemoBody{white-space:pre-wrap;overflow-wrap:anywhere;min-height:45px;margin:0 0 12px;font-size:13px;color:#333c41}
.quickMemoActions{display:flex;align-items:center;flex-wrap:wrap;gap:5px;justify-content:flex-end;font-size:11px}
.quickMemoActions button{border:0;border-radius:6px;background:rgba(255,255,255,.75);padding:5px 7px;min-height:30px;font-size:11px}
.quickMemoDate{margin-right:auto;color:#6c7376;font-size:10px}
.quickMemoCard textarea{margin-top:8px!important;font-size:12px}
@media(max-width:540px){.quickMemoGrid{grid-template-columns:1fr}}

body[data-academy-site] .daily-close-row{border:1px solid #edf0f2;background:#fafbfb;border-radius:12px;padding:12px 13px;margin:8px 0}
body[data-academy-site] .daily-close-attention{border-color:#eadbd3;background:#fffaf7}
body[data-academy-site] .grid .stat{background:#f7f8f9;border:1px solid #eef0f2;border-radius:14px;padding:15px 16px}
.studentModeTabs{display:flex;gap:5px;align-items:center;background:#f7f7f5;border:1px solid #eeeeec;border-radius:12px;padding:5px;margin-bottom:14px;width:max-content;max-width:100%}
.studentWorkspace{display:grid;grid-template-columns:minmax(250px,.8fr) minmax(0,1.4fr);gap:14px;align-items:start}
.student-search-label{display:grid;gap:6px;font-size:12px;margin-bottom:12px}
.student-search-label input{width:100%;min-width:0;border:1px solid var(--line-strong);border-radius:8px;padding:10px}
.studentList .student-card{margin-bottom:8px}.opsSection summary{cursor:pointer;font-weight:700;padding:5px 0}
.opsSection details .form-grid,.opsSection>.form-grid{margin-top:16px}
.operations-week-controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:0 0 14px}
.operations-week-controls strong{font-size:13px}.opsWeekGrid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}
.opsDayCol{background:#fafafa;border:1px solid #eceff2;border-radius:12px;padding:10px;min-width:0}
.opsDayCol h2{font-size:13px}.opsDayCol h2 small{display:block;color:var(--muted);font-weight:400}
.opsScheduleCard{border:1px solid #edf0f2;background:#fff;border-radius:10px;padding:10px;margin-top:9px;font-size:12px;overflow-wrap:anywhere}
.opsScheduleCard p{margin:6px 0}.operations-weekly-scroll{overflow-x:auto;max-width:100%;padding-bottom:10px}.operations-weekly-scroll .opsWeekGrid{min-width:900px}
.mobileCategoryBar,.mobileBottomNav{display:none}
@media(max-width:760px){
 body[data-academy-site] .layout{padding:0 14px calc(92px + env(safe-area-inset-bottom))}
 body[data-academy-site] .topbar{padding:12px 14px;border-bottom:1px solid #f0f0f0;gap:8px;flex-wrap:wrap}
 body[data-academy-site] .top-actions{gap:8px}.operations-identity{padding-top:10px}
 body[data-academy-site] .brand-masterchoo img{width:200px}
 .opsNav{margin:10px 0 12px;border-radius:12px;padding:4px}.opsTabBtn{padding:10px 11px;font-size:12px}
 .opsTodayWorkspace,.studentWorkspace{grid-template-columns:1fr;gap:10px}.opsQuickMemoSection{min-height:180px}
 body[data-academy-site] .block,.opsSection{padding:13px;border-radius:14px}
 .mobileCategoryBar{display:flex;overflow-x:auto;border-bottom:1px solid var(--line);gap:8px;margin-bottom:10px}
 .mobileBottomNav{display:block;position:fixed;left:0;right:0;bottom:0;z-index:45;background:rgba(255,255,255,.97);border-top:1px solid #ededed;padding:6px 8px calc(6px + env(safe-area-inset-bottom))}
 .mobileBottomNavInner{max-width:560px;margin:0 auto;display:flex;justify-content:space-around;gap:3px}.mobileBottomNav .opsTabBtn{flex:1;padding:10px 5px}
 .operations-schedule .opsWeekGrid{grid-template-columns:1fr}.opsDayCol h2 small{display:inline;margin-left:8px}
 body[data-academy-site] .login-wrap{padding:20px 12px}body[data-academy-site] .login-panel{padding:28px 22px}
 body[data-academy-site] .workspace-school{display:none}
 .studentModeTabs{width:100%}.studentModeTabs button{flex:1}
}
@media(max-width:650px){
 .login-wrap{grid-template-columns:1fr;gap:20px;margin:10px auto;padding:8px 18px 30px}
 .entry-story{padding:12px 4px 0}
 .entry-story h2{font-size:25px;margin:9px 0}
 .entry-story>p{margin:6px 0}
 .entry-story ol,.entry-story .entry-caption{display:none}
 .login-panel{padding:24px 20px}
 .academy-workspace-intro{display:block}
 .academy-workspace-intro h2{font-size:20px}
 .workspace-school{display:none}
 .workspace-shortcuts{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:20px}
 .workspace-shortcuts button{padding:13px 12px;gap:7px}
 .platform-intro h2{font-size:25px}
 .brand-academy strong{font-size:19px}
}