body{background:#f4f6fb}.topbar .brand{color:inherit;text-decoration:none;gap:12px}.wrap{max-width:1440px}.portal{max-width:1080px;margin:56px auto}.portal-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px;margin:22px 0}.library-grid a.card{text-decoration:none;color:inherit}.card{margin-bottom:18px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.14em;color:#7a62b4}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:24px}.page-heading h1{margin-bottom:8px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:18px 0}.form-grid label{font-size:14px;display:flex;flex-direction:column;gap:8px}.code-box{font-size:44px;font-weight:800;letter-spacing:.12em;padding:20px;background:#fff;border-radius:18px}.code-box small{font-size:11px;display:block;letter-spacing:.2em;text-align:center}.actions{margin-bottom:20px;flex-wrap:wrap}.slide-buttons{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}.results-scroll{overflow:auto;background:#fff;border-radius:16px}.results-table{width:100%;border-collapse:collapse;min-width:860px}.results-table td,.results-table th{padding:15px;text-align:left;vertical-align:top;border-bottom:1px solid #ececf4}.results-table th{background:#f1f0f8}.results-table details .btn{margin:3px 0}.grade-input{max-width:90px}.text-button{background:none;border:none;cursor:pointer}.submission-details{max-width:500px;max-height:420px;overflow:auto;white-space:pre-wrap;font-size:12px}.boundary{padding:12px;text-align:center;background:#fff1bd}.player-slides{max-width:1120px;margin:20px auto}.player-slides .row{justify-content:center;padding:14px}.schedule-form{margin-top:24px}.identity{background:#f0edf8;padding:12px;border-radius:10px}.portal .btn{margin-top:12px}.danger{color:#ad284b}.stage{max-width:100%}@media(max-width:760px){.portal-grid{grid-template-columns:1fr}.portal{margin:20px auto}.topbar .who{display:none}.page-heading{align-items:flex-start}.code-box{font-size:28px}}.topbar .spacer{flex:1}.teacher-navigation{background:#fff;border-bottom:1px solid #e4e5ed}.teacher-navigation-items{max-width:1440px;margin:0 auto;padding:10px 20px;display:flex;flex-wrap:wrap;gap:6px}.teacher-navigation a{display:block;padding:10px 16px;border-radius:9px;color:#595266;text-decoration:none;font-weight:600;font-size:14px}.teacher-navigation a:hover{background:#f4f1f9}.teacher-navigation a[aria-current=page]{background:#fff0df;color:#a64c00}.library-actions{flex-shrink:0}.library-location{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:16px;margin:26px 0}.library-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:14px;color:#8b8293}.library-breadcrumb a{text-decoration:none;color:#655a76}.library-breadcrumb [aria-current=page]{font-weight:700;color:#31283c;overflow-wrap:anywhere}.library-section-title{font-size:18px;margin:28px 0 0}.folder-title{overflow-wrap:anywhere}.folder-grid{margin-top:14px}.folder-card{display:flex;align-items:center;gap:18px;min-width:0;margin-bottom:0;transition:box-shadow .15s}.folder-card:hover{box-shadow:0 5px 22px #3f2d1420}.folder-card-icon{width:48px;height:48px;flex-shrink:0}.folder-card h2{font-size:20px;margin:0;overflow-wrap:anywhere}.folder-card .muted{font-size:13px;margin:8px 0 0}.folder-card-arrow{margin-left:auto;color:#a78c70;font-size:22px}.folder-create{position:relative}.folder-create summary{list-style:none}.folder-create summary::-webkit-details-marker{display:none}.folder-create .folder-form{position:absolute;right:0;top:calc(100% + 10px);z-index:20;width:300px;max-width:calc(100vw - 40px);padding:20px;background:#fff;border:1px solid #e7e2eb;border-radius:14px;box-shadow:0 10px 40px #24113720}.folder-form{display:grid;gap:10px}.folder-form label{font-size:13px;color:#655c70}.folder-form .inp{width:100%;min-width:0}.folder-form .err{margin:0}.folder-settings{background:#fff;padding:12px 16px;border-radius:10px;max-width:100%}.folder-settings summary{cursor:pointer;font-size:13px;font-weight:600}.folder-settings .folder-form{margin:14px 0}.lesson-card{display:flex;flex-direction:column;margin-bottom:0;min-width:0}.lesson-card h2{overflow-wrap:anywhere;margin-top:10px}.lesson-card>.row{margin-top:auto;padding-top:12px}.lesson-card-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}.lesson-card-heading .eyebrow{overflow-wrap:anywhere}.icon-button{width:38px;height:38px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;padding:8px;border:1px solid transparent;background:transparent;border-radius:9px;color:#817389;cursor:pointer}.icon-button svg{width:22px;height:22px}.icon-button:hover{background:#fff0df;color:#a64c00}.icon-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.library-empty{grid-column:1/-1;padding:30px}.library-empty h2,.library-empty h3{margin-top:0}.session-link{display:block;margin-top:20px;font-weight:600;color:#9c4e0d}.library-dialog{width:600px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 40px);padding:0;border:0;border-radius:18px;color:var(--ink);background:#fff;box-shadow:0 20px 80px #180c2e40;overflow:auto}.library-dialog::backdrop{background:#17101f80}.library-dialog-header{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;background:#fff;border-bottom:1px solid #eee9f1}.library-dialog-header h2{font-size:22px;margin:0}.library-dialog-body{padding:22px 24px}.library-dialog-body .form-grid{margin:22px 0}.dialog-lesson-title{font-weight:650;font-size:17px;margin:0 0 16px;overflow-wrap:anywhere}.library-dialog-footer{position:sticky;bottom:0;z-index:2;display:flex;justify-content:flex-end;flex-wrap:wrap;gap:10px;padding:16px 24px;background:#fff;border-top:1px solid #eee9f1}.folder-choices,.class-choices{display:grid;gap:8px;max-height:300px;overflow:auto;padding:2px}.choice-row{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid #e7e1eb;border-radius:10px;cursor:pointer;min-width:0}.choice-row:hover{background:#faf8fc}.choice-row:has(input:checked){border-color:#f39b43;background:#fff5e9}.choice-row input{width:18px;height:18px;flex-shrink:0;accent-color:var(--accent)}.choice-row span{min-width:0;overflow-wrap:anywhere}.choice-row strong{font-size:14px;font-weight:600}.choice-row small{display:block;font-size:12px;color:#86738c;margin-top:4px}.invitation-choices{border:0;padding:0;margin:24px 0 0;min-width:0}.invitation-choices legend{font-size:16px;font-weight:700;padding:0}.invitation-choices>p{font-size:13px;margin:10px 0 14px}body:has(.library-dialog[open]){overflow:hidden}@media(max-width:760px){.library-actions{flex-shrink:1}.folder-create .folder-form{left:0;right:auto}.library-dialog-header,.library-dialog-body{padding:18px}.library-dialog-footer{padding:14px 18px}}@media(max-width:540px){.teacher-navigation-items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding:8px 12px}.teacher-navigation a{padding:10px;font-size:13px}.page-heading{flex-wrap:wrap}.library-grid{grid-template-columns:minmax(0,1fr)}.topbar .brand strong{font-size:14px}.topbar{gap:10px;padding:10px 12px}.library-dialog{max-height:calc(100dvh - 24px)}.library-dialog .form-grid{grid-template-columns:1fr}}