:root{--navy:#082f5f;--blue:#1167aa;--gold:#b98a2f;--bg:#f4f7fb;--border:#dfe7f1;--text:#1f2d3d;--muted:#5f6f82}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.6 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer;border:1px solid var(--border);border-radius:6px;padding:8px 13px;background:white;color:var(--navy)}button:hover{border-color:var(--blue)}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #b98a2f;outline-offset:2px}.primary{background:var(--navy);color:white;border-color:var(--navy)}.shell{display:grid;grid-template-columns:208px 1fr;min-height:100vh}.rail{background:var(--navy);color:white;padding:28px 20px}.brand{font-size:22px;font-weight:700}.rail small{color:#b9cce0}.rail nav{margin-top:38px;display:grid;gap:10px}.rail a{color:#c8d7e8;text-decoration:none;padding:10px}.rail .active{background:white;color:var(--navy);border-radius:6px}.rail footer{margin-top:100px;font-size:12px;color:#b9cce0}main{min-width:0;padding:28px 32px}.head{display:flex;justify-content:space-between;gap:16px;align-items:center}h1{font-size:25px;color:var(--navy);margin:0}h2{font-size:18px;margin:0;color:var(--navy)}h3{font-size:14px;margin:0 0 10px}p{margin:6px 0}.muted{color:var(--muted)}.switch{display:flex;gap:8px;margin:24px 0 18px}.switch .selected{background:var(--navy);color:white}.notice{border-left:3px solid var(--gold);background:#fff6dd;padding:10px 15px;font-size:13px}.toolbar{display:flex;gap:12px;align-items:center;margin:22px 0 16px;flex-wrap:wrap}select,input,textarea{border:1px solid #c9d6e5;border-radius:5px;background:white;padding:8px;width:100%;color:var(--text)}.toolbar select{width:auto}.spacer{flex:1}.badge{display:inline-block;border-radius:4px;background:#eaf2ff;color:#254f8e;padding:2px 8px;font-size:12px}.good{background:#e8f6ef;color:#20724f}.amber{background:#fff4dc;color:#9b6712}.tabs{display:flex;border-bottom:1px solid var(--border);gap:20px;margin-bottom:20px}.tabs button{border:0;border-radius:0;background:none;padding:10px 0}.tabs .selected{border-bottom:3px solid var(--navy);font-weight:600}.work{display:grid;grid-template-columns:minmax(300px,1fr) minmax(370px,440px);gap:22px;align-items:start}.list{background:white;border:1px solid var(--border);border-radius:8px;overflow:hidden}.list-head{padding:18px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.group{padding:12px 20px 6px;background:#f8fbff;font-size:12px;font-weight:600;color:var(--muted)}.row{display:block;width:100%;text-align:left;border:0;border-radius:0;border-bottom:1px solid var(--border);padding:15px 20px;position:relative}.row.current{background:#edf5fd;border-left:4px solid var(--blue);padding-left:16px}.row-top{display:flex;justify-content:space-between;gap:8px}.row strong{font-size:15px}.meta{color:var(--muted);font-size:12px;margin-top:6px}.reason{font-size:12px;color:#9b6712;margin-top:7px}.panel{background:white;border:1px solid var(--border);border-radius:8px;padding:22px}.panel-head{display:flex;align-items:start;justify-content:space-between;gap:12px}.section{border-top:1px solid var(--border);padding-top:17px;margin-top:17px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:block;font-size:12px;color:var(--muted)}label input,label select,label textarea{display:block;margin-top:4px}.wide{grid-column:1/-1}.dates{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.date{padding:3px 7px;background:#f4f7fb;border:1px solid var(--border);border-radius:4px;font-size:12px}.actions{display:flex;gap:8px;margin-top:18px}.empty{padding:35px 20px;color:var(--muted);text-align:center}.statusbar{display:flex;gap:24px;padding:14px 0;margin-bottom:6px;color:var(--muted);font-size:13px}.statusbar b{color:var(--navy)}.log{font-size:12px;color:var(--muted);padding-left:18px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--navy);color:white;padding:12px 22px;border-radius:6px;z-index:5;max-width:90vw}.hidden{display:none}.flow{font-size:12px;color:var(--muted);margin-top:15px}.error{color:#b33434;background:#fff0f0;padding:10px;margin-top:10px}.semester{background:white;padding:26px;border:1px solid var(--border);border-radius:8px}.semester-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}.semester-card{border-top:3px solid var(--gold);background:#f8fbff;padding:18px}.help{font-size:12px;color:var(--muted)}@media(max-width:1100px){.shell{grid-template-columns:160px 1fr}main{padding:22px}.work{grid-template-columns:1fr}.panel{scroll-margin-top:15px}.rail{padding:22px 14px}}@media(max-width:600px){.shell{display:block}.rail{padding:14px 18px}.rail nav,.rail footer,.rail small{display:none}.brand{font-size:17px}main{padding:18px 14px}.head{align-items:start}h1{font-size:22px}.head button{font-size:12px;padding:6px 8px}.switch{gap:6px}.switch button{flex:1;font-size:13px;padding:8px}.toolbar{gap:8px}.statusbar{gap:14px;flex-wrap:wrap}.tabs{gap:15px}.work{gap:16px}.panel{padding:17px}.semester-grid{grid-template-columns:1fr}.row{padding:14px}.row.current{padding-left:10px}.row strong{font-size:14px}}
.semester-work{margin-top:22px}.semester{padding:0}.semester>.list-head{padding:22px}.semester>.work{padding:22px}@media(max-width:600px){.semester>.work{padding:14px}.semester>.list-head{padding:16px}}

@media(max-width:600px){.head>button{white-space:nowrap;flex-shrink:0}.list-head{gap:10px}.list-head .help{max-width:125px;text-align:right}}
.head-actions{display:flex;gap:8px;flex-shrink:0}.create-dialog{width:min(560px,calc(100vw - 28px));max-height:90vh;overflow:auto;border:1px solid var(--border);border-radius:10px;padding:24px;color:var(--text)}.create-dialog::backdrop{background:rgba(8,47,95,.4)}@media(max-width:600px){.head{flex-wrap:wrap}.head-actions{width:100%;justify-content:flex-end}.create-dialog{padding:18px}}

.planning-guide{width:min(760px,calc(100vw - 28px));line-height:1.75}.planning-guide ol{padding-left:22px}.planning-guide li+li{margin-top:10px}.planning-guide dt{font-weight:600;color:var(--navy);margin-top:12px}.planning-guide dd{margin:3px 0 0}.planning-guide .panel-head button{flex-shrink:0}.head-actions{flex-wrap:wrap}
.class-picker{margin:0;padding:12px;border:1px solid var(--border);border-radius:6px;min-width:0}.class-picker legend{font-size:12px;color:var(--muted);padding:0 5px}.class-choice{display:flex;align-items:flex-start;gap:8px;padding:8px 4px;color:var(--text);font-size:13px}.class-choice input{width:16px;min-width:16px;height:16px;margin:3px 0 0}.class-choice small{display:block;color:var(--muted)}.create-dialog{width:min(640px,calc(100vw - 28px))}
/* Monthly courses use a full-width list with an editor directly under its row. */
.monthly-list .row{display:grid;grid-template-columns:minmax(200px,1fr) minmax(250px,1.2fr) 100px;gap:20px;align-items:center}.row-end{display:grid;justify-items:end;gap:7px}.expand-hint{font-size:12px;color:var(--blue)}.inline-editor{border:0;border-radius:0;border-bottom:2px solid #b9cee6;background:#f8fbff;padding:24px 28px}.inline-editor .panel-head{align-items:center}.inline-editor .section{background:white;border:1px solid var(--border);border-radius:6px;padding:16px;margin-top:14px}.inline-editor .section .fields{grid-template-columns:repeat(4,minmax(0,1fr))}.inline-editor .wide{grid-column:span 2}.inline-editor .actions{padding:12px 0;justify-content:flex-end}.inline-editor .log{columns:2}.inline-editor> .section{margin-top:10px}#monthly .tabs{margin-top:18px}#monthly .toolbar{margin-top:16px}#monthly .flow{margin-bottom:24px}@media(max-width:900px){.monthly-list .row{grid-template-columns:1fr 100px;gap:8px}.row-main{grid-column:1}.row-schedule{grid-column:1}.row-end{grid-column:2;grid-row:1/span 2}.inline-editor .section .fields{grid-template-columns:repeat(2,minmax(0,1fr))}.inline-editor .log{columns:1}}@media(max-width:600px){.inline-editor{padding:16px 12px}.inline-editor .section{padding:12px}.inline-editor .panel-head{flex-wrap:wrap}.inline-editor .section .fields{gap:10px}.inline-editor .wide{grid-column:1/-1}.monthly-list .row{padding:15px 14px}.monthly-list .row.current{padding-left:10px}.row-schedule{font-size:12px}.row-end{gap:5px}.inline-editor .actions{justify-content:stretch}.inline-editor .actions button{flex:1}.inline-editor .panel-head h2{font-size:17px}}
.date-comparison{display:grid;grid-template-columns:1fr 1fr;gap:16px}.inline-editor .date-comparison>.section{margin-top:14px;min-width:0}.date.stopped{background:#fff4dc;color:#9b6712}.inline-editor .actions{margin-top:8px}@media(max-width:600px){.date-comparison{grid-template-columns:1fr;gap:0}}
.readonly-details{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:18px 0}.readonly-details>div{min-width:0}.readonly-details dt{font-size:12px;color:var(--muted)}.readonly-details dd{margin:4px 0 0;overflow-wrap:anywhere}.inline-editor .panel-head{gap:10px}.inline-editor .panel-head button{flex-shrink:0}#current-toolbar{justify-content:flex-start}#future-toolbar{justify-content:flex-end}.notice{font-size:12px;padding:8px 14px}.monthly-list .row{padding-top:13px;padding-bottom:13px}.monthly-list .reason:empty{display:none}.inline-editor .section{padding:14px}.inline-editor .fields{gap:10px}.inline-editor h3{margin-bottom:8px}.inline-editor input,.inline-editor select,.inline-editor textarea{padding:7px}.inline-editor>.panel-head h2{font-size:18px}@media(max-width:600px){.readonly-details{grid-template-columns:repeat(2,minmax(0,1fr))}.inline-editor>.panel-head h2{font-size:16px}}
.summary-line{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:12px 0 16px}.summary-line .statusbar{margin:0;padding:0;gap:18px}.summary-line #future-toolbar{margin:0;padding:0}#monthly .tabs{margin-bottom:10px}#current-toolbar{margin-bottom:8px;margin-top:10px}@media(max-width:600px){.summary-line{gap:12px;margin:12px 0}.summary-line .statusbar{gap:12px}.summary-line #future-toolbar{margin-left:auto}}
#semester{background:transparent;border:0;padding:0}#semester .summary-line{padding:0}#semester>.monthly-list{padding:0}#semester>.monthly-list .list-head{padding:18px 20px}