.records-shell{width:min(1080px,calc(100% - 40px));margin:0 auto}.records-main{padding:40px 0 64px;min-height:60vh}.records-main h1{font-size:clamp(26px,4vw,36px);font-weight:750;letter-spacing:-.055em;margin:8px 0 12px}.records-main h2{font-size:22px;font-weight:650;margin:0 0 14px}.records-main p{line-height:1.8}.records-intro{margin-bottom:24px}.records-footer,.records-intro{color:var(--color-fd-muted-foreground)}.records-footer{font-size:13px;padding:20px 0 30px;border-top:1px solid var(--color-fd-border)}.records-login{max-width:540px;margin:24px auto}.records-panel{background:var(--color-fd-card);border:1px solid var(--color-fd-border);padding:24px;border-radius:14px;margin:18px 0}.records-label{display:grid;gap:8px;font-size:15px;margin:16px 0}.records-input{font:inherit;font-size:16px;width:100%;min-width:0;min-height:44px;background:var(--color-fd-background);color:var(--color-fd-foreground);border:1px solid var(--color-fd-border);border-radius:8px;padding:11px 12px}textarea.records-input{resize:vertical}.records-input:focus-visible{outline:3px solid var(--color-fd-primary);outline-offset:3px}.records-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px}.records-button{display:inline-flex;justify-content:center;align-items:center;gap:6px;font:inherit;cursor:pointer;min-height:44px;border:1px solid var(--color-fd-border);border-radius:8px;padding:10px 16px;background:var(--color-fd-card);color:var(--color-fd-foreground)}.records-button.primary{background:var(--color-fd-primary);color:var(--color-fd-primary-foreground);border-color:var(--color-fd-primary)}.records-button:disabled{opacity:.6;cursor:wait}.records-message{margin:14px 0;padding:12px 14px;background:var(--lab-soft);border-radius:8px;overflow-wrap:anywhere}.records-error{border:1px solid var(--color-fd-border);padding:12px;border-radius:8px;margin:12px 0}.records-small{font-size:13px;color:var(--color-fd-muted-foreground)}.records-course{display:block;padding:24px;border:1px solid var(--color-fd-border);border-radius:12px;background:var(--color-fd-card);margin:20px 0}.records-course h2{color:var(--lab-green)}.teacher-students{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.teacher-student{cursor:pointer;text-align:left;display:grid;gap:8px;min-width:0;background:color-mix(in srgb,var(--student-state-color) 8%,var(--color-fd-card));border:1px solid color-mix(in srgb,var(--student-state-color) 35%,var(--color-fd-border));border-top:4px solid var(--student-state-color);border-radius:10px;padding:16px}.teacher-student[aria-pressed=true]{outline:2px solid var(--color-fd-foreground);outline-offset:2px}.teacher-student-name{font-size:16px;font-weight:650}.teacher-student span{overflow-wrap:anywhere}.teacher-help{font-size:13px;font-weight:650;color:var(--lab-green)}.teacher-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0}.teacher-answers section{padding:16px;background:var(--color-fd-muted);border-radius:10px;min-width:0}.teacher-answers h3{font-size:15px;font-weight:650;margin-bottom:10px}.teacher-answers p{font-size:14px;overflow-wrap:anywhere}.teacher-details{margin:20px 0}.teacher-details summary{cursor:pointer;min-height:44px;padding:10px 0;color:var(--lab-green);font-weight:600}.teacher-code{display:block;font:16px/1.8 ui-monospace,monospace;padding:12px;overflow-wrap:anywhere;background:var(--color-fd-card);border:1px solid var(--color-fd-border);border-radius:8px;margin:12px 0;user-select:all}.teacher-current{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}.teacher-current h2{margin:0}.teacher-workspace{border:0;margin:0;padding:0;min-width:0}.teacher-sync{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--color-fd-muted-foreground);min-height:44px}.teacher-sync a{text-decoration:underline}.teacher-sync-dot{width:7px;height:7px;border-radius:50%;background:var(--color-fd-muted-foreground);flex:none}.teacher-sync-dot[data-connected=true]{background:var(--lab-green)}.records-text-button{cursor:pointer;min-height:44px;padding:8px;font-size:13px;color:var(--lab-green);text-decoration:underline;text-underline-offset:3px}.records-button:focus-visible,.records-text-button:focus-visible,.teacher-student:focus-visible,summary:focus-visible{outline:3px solid var(--color-fd-primary);outline-offset:3px}.teacher-session h2{margin-bottom:6px}.teacher-session form{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.teacher-session form label{flex:1;min-width:min(220px,100%);margin-bottom:0}.teacher-count{display:inline-grid;place-items:center;min-width:28px;padding:2px 8px;border-radius:20px;background:var(--lab-soft);color:var(--lab-green);font-size:15px}.teacher-request-list{display:grid;gap:16px;margin-top:20px}.teacher-request{border-top:1px solid var(--color-fd-border);padding-top:18px}.teacher-request strong,.teacher-request-note{overflow-wrap:anywhere;white-space:pre-wrap}.teacher-request .records-actions{margin-top:8px}.teacher-section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:32px}.teacher-section-heading h2{margin:0}#teacher-record{scroll-margin-top:20px}@media(max-width:760px){.teacher-students{grid-template-columns:repeat(2,minmax(0,1fr))}}.teacher-lesson-picker{margin:20px 0;max-width:680px}.teacher-lesson-picker .records-label{margin-bottom:8px;font-weight:650}.teacher-lesson-picker select{max-width:100%;text-overflow:ellipsis}.teacher-lesson-picker p{margin-top:8px}.teacher-lesson-summary{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:18px;padding:16px;border-radius:10px;background:var(--color-fd-muted)}.teacher-lesson-summary span{font-size:14px}.teacher-lesson-summary strong{margin-left:6px;font-weight:700}.teacher-lesson-summary p{flex-basis:100%}#teacher-record-area{scroll-margin-top:20px}.teacher-reset{border-top:1px solid var(--color-fd-border);margin-top:28px;padding-top:20px}.teacher-reset-confirm{background:color-mix(in srgb,#b42318 8%,var(--color-fd-background))}.teacher-reset-button{background:#a52624;border-color:#a52624;color:#fff}.teacher-reset-button:disabled{opacity:.45}.teacher-status-legend>span,.teacher-student{--student-state-color:#718096}.teacher-status-legend [data-state=progress],.teacher-student[data-state=progress]{--student-state-color:#3b82f6}.teacher-status-legend [data-state=review],.teacher-student[data-state=review]{--student-state-color:#8b5cf6}.teacher-status-legend [data-state=reviewed],.teacher-student[data-state=reviewed]{--student-state-color:#16a34a}.teacher-status-legend [data-state=help],.teacher-student[data-state=help]{--student-state-color:#ea8a23}.teacher-status-legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px}.teacher-status-legend>span{display:inline-flex;align-items:center;gap:6px;font-size:13px}.teacher-status-legend i{width:9px;height:9px;background:var(--student-state-color);border-radius:50%}.teacher-card-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.teacher-card-selected{font-size:12px;font-weight:650}.teacher-card-status{font-size:14px;font-weight:700}.records-surface{min-height:100%;background:var(--color-fd-background);color:var(--color-fd-foreground)}.records-surface[data-role=teacher]{--color-fd-background:#f8f9fd;--color-fd-foreground:#202b45;--color-fd-primary:#3348a3;--color-fd-primary-foreground:#ffffff;--color-fd-muted:#edf0f8;--color-fd-muted-foreground:#59657e;--color-fd-card:#ffffff;--color-fd-border:#dce1ed;--color-fd-accent:#e7ebf8;--color-fd-accent-foreground:#2d3e8c;--lab-hero:#eef0fa;--lab-green:#3348a3;--lab-soft:#e8ecfa}.dark .records-surface[data-role=teacher]{--color-fd-background:#151a29;--color-fd-foreground:#e6eaf5;--color-fd-primary:#a5b4fc;--color-fd-primary-foreground:#172044;--color-fd-muted:#242c40;--color-fd-muted-foreground:#adb7cd;--color-fd-card:#1c2335;--color-fd-border:#35405b;--color-fd-accent:#2c3650;--color-fd-accent-foreground:#c3cdff;--lab-hero:#222c46;--lab-green:#a5b4fc;--lab-soft:#2b3554}@media(max-width:480px){.records-shell{width:calc(100% - 28px)}.records-main{padding-top:26px}.records-panel{padding:18px}.teacher-answers,.teacher-students{grid-template-columns:1fr}}