.lab-teacher{margin:18px 0 28px}.lab-teacher[hidden],.lab-teacher [hidden]{display:none!important}
.lab-title-line{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin:20px 0 14px}
.lab-title-line h2,.lab-title-line h3{margin:0;color:#184332;letter-spacing:-.03em}.lab-title-line h2{font-size:25px}.lab-title-line h3{font-size:21px}
.lab-class-notice{font-size:14px;color:#2f7b58;margin:0 0 10px}.lab-class-notice:empty{display:none}.lab-class-notice.bad{color:#ad463b}
.lab-class-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.lab-class-tile{min-height:140px;border:1px solid #c4e0d1;border-radius:23px;padding:18px;text-align:left;display:flex;flex-direction:column;align-items:flex-start;gap:10px;color:#154a32;background:linear-gradient(135deg,#fff,#e9f8ee);box-shadow:0 10px 24px #055a3110;transition:transform .15s ease,box-shadow .15s ease}
.lab-class-tile:hover,.lab-class-tile:focus-visible{transform:translateY(-2px);box-shadow:0 13px 28px #055a311b}
.lab-class-tile strong{font-size:18px}.lab-class-tile small{color:#648774;font-size:13px}.lab-class-icon{display:grid;place-items:center;height:43px;width:43px;background:#d6f5e3;border-radius:14px;color:#087a52;font-size:22px}
.lab-classroom-note{font-size:12px;color:#608273;margin:14px 0 0}.lab-empty{grid-column:1/-1;color:#5e8170;background:#ffffffac;padding:24px;border:1px dashed #bddec9;border-radius:18px}
.lab-roster-card{padding:18px;border-radius:22px;border:1px solid #cae5d2;background:#ffffffbb}
.lab-roster-card .lab-title-line{margin:0 0 14px}.lab-roster-card #labStudentCount{font-size:14px;color:#608d77;letter-spacing:0}
.lab-student-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(205px,1fr));gap:9px}
.lab-student-chip{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border:1px solid #cce7d6;border-radius:15px;background:#f7fff9}
.lab-student-chip>span{display:flex;flex-direction:column;min-width:0}.lab-student-chip strong{font-size:13px;overflow-wrap:anywhere}.lab-student-chip small{font-size:11px;color:#628873;overflow-wrap:anywhere}.lab-remove,.lab-pair-chip button{flex:none;border:0;background:#e5f3eb;color:#276b4b;border-radius:9px;font-size:18px;width:29px;height:29px;padding:0}
.lab-modal{position:fixed;inset:0;z-index:1200;display:grid;place-items:center;padding:12px;background:#05291d99;overflow-y:auto}
.lab-modal-panel{width:min(460px,100%);max-height:calc(100dvh - 24px);overflow-y:auto;padding:24px;border-radius:25px;border:1px solid #bedfcc;background:#fafff9;box-shadow:0 24px 60px #041d1240}
.lab-modal-panel h2{font-size:26px;margin:0 0 13px}.lab-modal-panel p{font-size:13px;color:#648270;line-height:1.4}.lab-modal-panel label{display:block;font-size:13px;font-weight:700;color:#275b41;margin:6px 0}
.lab-modal-panel input:not([type=radio]),.lab-modal-panel textarea,.lab-modal-panel select{font:inherit;color:#174730;border:1px solid #b9d9c5;border-radius:12px;background:white;min-height:44px;padding:10px 12px;max-width:100%}
.lab-modal-panel #labClassName,.lab-modal-panel #labStudentSource{display:block;width:100%}.lab-modal-panel textarea{resize:vertical}
.lab-modal-actions{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap;margin-top:20px}
.lab-builder-panel{width:min(790px,100%)}.lab-builder-panel .lab-title-line{margin:0 0 12px}
.lab-builder-controls{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.lab-builder-controls fieldset{margin:0;border:1px solid #d4e6d9;border-radius:15px;padding:12px;display:flex;flex-direction:column;gap:7px;min-width:0}
.lab-builder-controls legend{font-size:13px;font-weight:700;color:#286a49;padding:0 5px}
.lab-builder-controls fieldset label{font-weight:600;display:flex;align-items:center;gap:7px;margin:0}
.lab-builder-controls input[type=radio]{accent-color:#098456}
.lab-target{display:grid;grid-template-columns:1fr 82px;gap:6px;align-content:center}
.lab-target label,.lab-target span{grid-column:1/-1;font-size:12px}.lab-target select{min-width:0}.lab-target input{width:82px;text-align:center}
.lab-target span{color:#6b8b79;font-weight:600}
.lab-pair-area{border:1px solid #c9e2d1;border-radius:17px;margin-top:16px;padding:12px;background:#eff9f2}
.lab-pair-area h3{font-size:15px;margin:0 0 10px}.lab-pair-inputs{display:flex;gap:7px;align-items:center;flex-wrap:wrap}.lab-pair-inputs select{flex:1;min-width:130px}
.lab-pairs{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.lab-pair-chip{font-size:12px;font-weight:700;display:flex;align-items:center;gap:8px;background:#fff6d8;border-radius:12px;padding:5px 7px 5px 11px;color:#5b6233}
.lab-builder-status{font-size:13px;color:#397b56;margin:15px 0}.lab-builder-status.bad{color:#a53d32}
.lab-preview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}
.lab-preview-card{border:1px solid #c3e1cf;border-radius:18px;background:white;padding:13px;min-width:0}
.lab-preview-card label{font-size:12px;color:#20774e}.lab-preview-card .lab-preview-name{width:100%;font-weight:700;margin-top:5px}
.lab-preview-card ul{margin:10px 0 0;padding-left:19px;font-size:13px;line-height:1.65;color:#40634e}
.lab-builder-actions{position:sticky;bottom:-24px;padding:12px 0;background:linear-gradient(transparent,#fafff9 25%)}
@media(max-width:600px){.lab-title-line h2{font-size:22px}.lab-title-line h3{font-size:18px}.lab-title-line>.primary{padding:10px 12px;font-size:13px}.lab-builder-controls{grid-template-columns:1fr}.lab-modal-panel{padding:17px}.lab-modal-actions>*{flex:1}.lab-pair-inputs select{min-width:100px}}

.lab-class-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}@media(max-width:600px){.lab-class-actions{width:100%;justify-content:flex-start}.lab-class-actions button{font-size:13px;padding:10px 12px}}

.lab-apart-area{background:#f6fbf9;border-color:#c1ddd4}.lab-apart-area p{margin:0 0 10px}.lab-apart-chip{background:#fceee9;color:#804a37}.lab-apart-chip button{background:#fae0d7;color:#804a37}

/* Classroom importer: teacher-only and independent from Drive. */
.lab-classroom-panel{width:min(720px,100%)}
.lab-classroom-tools{margin:15px 0}
.lab-classroom-status{min-height:20px;color:#367b59;font-size:13px}
.lab-classroom-status.bad{color:#a53d32}
.lab-classroom-courses{display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:10px}
.lab-classroom-course{padding:13px;border:1px solid #c5dfd0;border-radius:15px;background:#f4fff7;color:#154b33;text-align:left;display:grid;gap:6px;min-width:0}
.lab-classroom-course strong{font-size:14px;overflow-wrap:anywhere}
.lab-classroom-course small{font-size:12px;color:#688b78}
.lab-classroom-course:hover,.lab-classroom-course.selected{border-color:#14875b;background:#e1f7e8}
#labClassroomSelection{padding-top:12px}
#labClassroomSelection h3{margin:8px 0;font-size:19px}
.lab-classroom-roster{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:5px;max-height:220px;overflow-y:auto}
.lab-classroom-roster span{font-size:12px;background:#eff8f1;border:1px solid #dfebdf;padding:8px;border-radius:10px;overflow-wrap:anywhere}
.lab-classroom-roster small{display:block;color:#688b78;font-size:11px}