:root {
  --navy:#102a43;
  --navy-2:#183b56;
  --blue:#2d6cdf;
  --mint:#b8e1d5;
  --paper:#f3f6f8;
  --white:#ffffff;
  --ink:#18313f;
  --muted:#647784;
  --line:#d7e0e5;
  --red:#b3473c;
  --shadow:0 18px 55px rgba(16,42,67,.12);
}
.student-display-panel{background:#fff;padding:24px;border:1px solid var(--line);border-radius:12px}.student-display-controls{display:flex;align-items:end;flex-wrap:wrap;gap:16px;margin:20px 0}.student-display-controls label{display:flex;flex-direction:column;gap:7px;min-width:200px;max-width:100%;font-size:.95rem;font-weight:700}.student-display-controls select{font:inherit;padding:11px 12px;min-height:44px;border:1px solid #aeb8c2;border-radius:6px;background:#fff;max-width:100%}.student-display-controls button,.student-display-open{font:700 .95rem/1.5 Arial,sans-serif;min-height:44px;padding:10px 14px;border-radius:6px}.student-display-open{display:inline-flex;align-items:center;background:#161616;color:#fff;text-decoration:none}.student-display-status{color:#4c5661;font-size:.95rem;line-height:1.5}.student-display-frame{display:block;width:100%;height:80vh;min-height:650px;border:1px solid #ced6dd;border-radius:8px;background:#fff}.student-display-frame[hidden]{display:none}@media(max-width:650px){.student-display-panel{padding:16px}.student-display-controls{align-items:stretch;flex-direction:column}.student-display-controls label{min-width:0;width:100%}.student-display-controls select{width:100%}.student-display-frame{height:76vh;min-height:550px}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.45}
button,input,select,textarea{font:inherit}
button,a{touch-action:manipulation}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hidden{display:none!important}
.eyebrow{margin:0 0 7px;color:var(--blue);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.portal-header{min-height:76px;padding:0 max(4vw,24px);display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--navy);color:white}
.portal-header>div{display:flex;align-items:center;gap:18px}
.portal-header a{color:white;text-decoration:none;font-size:.9rem;font-weight:700}
.portal-signout{border:0;background:transparent;color:white;font-weight:700;cursor:pointer}
.portal-brand{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-weight:800}
.portal-brand>span{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--mint);color:var(--navy);font:700 1.2rem Georgia,serif}
.owner-chip{padding:7px 10px;border:1px solid rgba(255,255,255,.22);border-radius:999px;font-size:.78rem}
.portal-main{width:min(1280px,calc(100% - 36px));margin:0 auto;padding:48px 0 70px}
.portal-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
.portal-heading h1{margin:0;color:var(--navy);font:700 clamp(2.2rem,5vw,4rem)/1 Georgia,serif;letter-spacing:-.04em}
.portal-heading>div>p:last-child{margin:14px 0 0;color:var(--muted);font-size:1rem}
.portal-actions{display:flex;gap:10px}
.portal-actions button,.details-button,.teacher-signin,.danger{border:1px solid var(--line);border-radius:8px;padding:11px 15px;background:white;color:var(--navy);font-weight:800;cursor:pointer}
.portal-actions .primary,.teacher-signin{border-color:var(--blue);background:var(--blue);color:white}
button:disabled{opacity:.55;cursor:wait}
.filters{display:grid;grid-template-columns:200px 210px 1fr;align-items:end;gap:14px;padding:18px;background:white;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 30px rgba(16,42,67,.06)}
.filters label{display:grid;gap:6px;color:var(--navy);font-size:.83rem;font-weight:800}
.filters select,.filters input{min-height:44px;border:1px solid var(--line);border-radius:7px;padding:8px 10px;background:white;color:var(--ink)}
.filters p{justify-self:end;margin:0;color:var(--muted);font-size:.83rem}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}
.metrics article{min-height:112px;padding:21px;border:1px solid var(--line);border-radius:12px;background:var(--navy);color:white;display:grid;align-content:space-between}
.metrics article:nth-child(2){background:#166b56}.metrics article:nth-child(3){background:#7d4b40}.metrics article:nth-child(4){background:#315a89}
.metrics span{font-size:.82rem;color:rgba(255,255,255,.75)}
.metrics strong{font:700 2.3rem Georgia,serif}
.records-card{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:white;box-shadow:var(--shadow)}
.records-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;padding:24px 26px 18px;border-bottom:1px solid var(--line)}
.records-heading h2{margin:0;color:var(--navy);font:700 1.7rem Georgia,serif}.records-heading>span{color:var(--muted);font-size:.86rem}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:1050px}
th{text-align:left;padding:13px 16px;background:#edf2f5;color:var(--muted);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase}
td{padding:16px;border-top:1px solid #e8edf0;font-size:.86rem;vertical-align:middle}
td strong,td small{display:block}td small{margin-top:3px;color:var(--muted);font-size:.75rem}
.status{display:inline-flex;align-items:center;gap:7px;padding:6px 9px;border-radius:999px;font-size:.76rem;font-weight:800}
.status::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.status.present{background:#e3f3ed;color:#17664f}.status.absent{background:#f4e9e6;color:#93483d}
.details-button{padding:8px 10px;color:var(--blue);font-size:.76rem}
.empty-state{padding:55px 24px;text-align:center}.empty-state strong{color:var(--navy);font:700 1.3rem Georgia,serif}.empty-state p{margin:6px 0;color:var(--muted)}
.security-note{margin:16px 0 0;color:var(--muted);font-size:.82rem}.security-note span{color:#17664f}
.portal-tabs{display:flex;gap:8px;margin:0 0 22px;padding:7px;border:1px solid var(--line);border-radius:11px;background:white;overflow-x:auto}.portal-tabs button{flex:1;min-width:max-content;border:0;border-radius:7px;padding:11px 13px;background:transparent;color:var(--muted);font-weight:800;cursor:pointer}.portal-tabs button.active{background:var(--navy);color:white}.tab-panel{min-height:420px}.panel-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:7px 0 17px}.panel-title h2{margin:0;color:var(--navy);font:700 2rem Georgia,serif}.panel-title p:last-child{margin:7px 0 0;color:var(--muted)}
.teacher-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin-bottom:20px;padding:22px;border:1px solid var(--line);border-radius:13px;background:white;box-shadow:0 8px 30px rgba(16,42,67,.06)}.teacher-form label,.grading-filters label,.grade-form label{display:grid;gap:6px;color:var(--navy);font-size:.82rem;font-weight:800}.teacher-form .wide{grid-column:span 1}.teacher-form .full,.teacher-form .form-actions{grid-column:1/-1}.teacher-form input,.teacher-form select,.teacher-form textarea,.grading-filters select,.grade-form input,.grade-form textarea{width:100%;border:1px solid var(--line);border-radius:7px;padding:10px;background:white;color:var(--ink);outline:none}.teacher-form textarea,.grade-form textarea{resize:vertical}.teacher-form input:focus,.teacher-form select:focus,.teacher-form textarea:focus,.grading-filters select:focus,.grade-form input:focus,.grade-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(45,108,223,.11)}.form-actions,.grade-actions{display:flex;align-items:center;gap:13px}.form-actions button,.grade-actions button,.grade-button{border:0;border-radius:8px;padding:10px 14px;font-weight:800;cursor:pointer}.form-actions .primary,.grade-actions .primary,.grade-button{background:var(--blue);color:white}.form-actions span,.grade-actions span{color:var(--muted);font-size:.78rem}
.management-card{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:white;box-shadow:var(--shadow)}.management-item{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:start;padding:21px 25px;border-top:1px solid #e8edf0}.management-item:first-child{border-top:0}.management-copy h3{margin:4px 0 7px;color:var(--navy);font-size:1.06rem}.management-copy p{margin:0}.item-meta{color:var(--blue);font-size:.73rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}.preserve-lines{white-space:pre-wrap}.submission-count{margin-top:11px!important;color:var(--muted);font-size:.78rem}.item-actions{display:flex;gap:7px}.delete-button{border:1px solid #d7aaa4;border-radius:7px;padding:8px 10px;background:white;color:var(--red);font-weight:800;cursor:pointer}.grade-button{padding:8px 10px;font-size:.8rem}
.teacher-source{margin-top:12px;color:var(--muted);font-size:.82rem}.teacher-source summary{color:var(--blue);font-weight:800;cursor:pointer}.teacher-source p{margin-top:9px!important;padding:12px;border-radius:8px;background:#f3f6f8}.teacher-form small{color:var(--muted);font-weight:400}
.teacher-form .assessment-security-option{padding:13px 15px;border:1px solid #9fc5b7;border-radius:9px;background:#f0f8f5}.assessment-security-option>span{display:flex;align-items:center;gap:9px;color:#155a46;font-size:.9rem}.teacher-form .assessment-security-option input{width:auto;margin:0;accent-color:#17664f}.assessment-security-option:has(input:disabled){opacity:.72}
.question-builder{padding:18px;border:1px solid var(--line);border-radius:11px;background:#f7f9fa}.question-builder-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.question-builder-heading>div{display:grid;gap:3px}.question-builder-heading strong{color:var(--navy);font-size:1rem}.question-builder-heading small{color:var(--muted)}.secondary-action,.remove-question{border:1px solid var(--line);border-radius:7px;padding:9px 12px;background:white;color:var(--blue);font-size:.78rem;font-weight:800;cursor:pointer}.question-builder-list{display:grid;gap:14px}.question-editor{padding:17px;border:1px solid var(--line);border-radius:10px;background:white}.question-editor-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:13px}.question-editor-heading strong{color:var(--navy);font:700 1.08rem Georgia,serif}.remove-question{padding:6px 9px;border-color:#d7aaa4;color:var(--red)}.question-editor-grid{display:grid;grid-template-columns:minmax(0,1fr) 110px;gap:12px}.question-editor-grid label,.question-response-fields label{display:grid;gap:6px;color:var(--navy);font-size:.79rem;font-weight:800}.question-editor-grid .wide{grid-column:1/-1}.question-response-fields{display:grid;gap:10px;margin-top:13px;padding-top:13px;border-top:1px solid #e8edf0}.external-question-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,.35fr);gap:12px}.option-heading{display:flex;align-items:end;justify-content:space-between;gap:10px}.option-heading small{color:var(--muted)}.option-editor-list{display:grid;gap:8px}.option-editor{display:grid;grid-template-columns:auto 22px minmax(130px,1fr) minmax(135px,.7fr);align-items:center;gap:8px}.option-editor>span{color:var(--blue);font-weight:800}.option-editor input[type="radio"]{width:auto}.compact-upload{display:grid!important;gap:5px;color:var(--blue)!important;font-size:.74rem!important}.compact-upload input{padding:7px!important;font-size:.74rem}.prompt-upload{padding:10px;border:1px dashed #bdcad2;border-radius:8px;background:#f8fafb}.response-help{margin:0;color:var(--muted);font-size:.8rem}.invalid-total{border-color:var(--red)!important;background:#fff7f5!important}.assessment-answer-list{display:grid;gap:11px;margin-top:10px}.assessment-answer-card{padding:14px;border:1px solid var(--line);border-radius:8px;background:white}.assessment-answer-heading{display:flex;align-items:start;justify-content:space-between;gap:13px}.assessment-answer-heading strong{color:var(--navy)!important;font-size:.85rem!important}.assessment-answer-heading span{flex:0 0 auto;color:var(--muted);font-size:.72rem}.external-question-link,.chat-message-link{color:var(--blue);font-weight:800;overflow-wrap:anywhere}.external-question-link{display:inline-block;margin-top:10px}.external-question-meta{display:block;margin-top:4px;color:var(--muted)}.answer-image{display:block;width:min(100%,360px);max-height:260px;object-fit:contain;margin:10px 0;border:1px solid var(--line);border-radius:8px;background:#f5f7f8}.assessment-answer-card audio{width:min(100%,460px)}.answer-label,.saved-response{margin:10px 0 5px!important;color:var(--muted);font-size:.76rem}.student-written-answer{margin-top:9px!important}.auto-mark,.answer-key{margin:10px 0 0!important;padding:8px 10px;border-radius:6px;font-size:.78rem}.auto-mark.correct{background:#e3f3ed;color:#17664f}.auto-mark.incorrect{background:#f4e9e6;color:#93483d}.answer-key{background:#eaf0fb;color:#31557a}
.grading-filters{display:grid;grid-template-columns:180px minmax(220px,1fr) 200px;gap:14px;padding:18px;border:1px solid var(--line);border-radius:12px;background:white}.grading-summary{margin:16px 0;padding:13px 16px;border-left:3px solid var(--blue);border-radius:0 8px 8px 0;background:#eaf0fb;color:#31557a;font-size:.86rem}.grading-list{display:grid;gap:14px}.grading-card{padding:22px;border:1px solid var(--line);border-radius:13px;background:white;box-shadow:0 8px 30px rgba(16,42,67,.06)}.grading-card-heading{display:flex;justify-content:space-between;align-items:start;gap:15px}.grading-card-heading h3{margin:0;color:var(--navy);font:700 1.35rem Georgia,serif}.grading-card-heading small{color:var(--muted)}.student-response{margin:17px 0;padding:16px;border:2px solid #b8d5ca;border-radius:9px;background:#f3f9f7}.student-response .student-work-heading{display:block;margin-bottom:10px;color:#17664f;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}.student-response p{margin:0}.student-response audio{display:block;width:min(100%,460px);margin:10px 0}.open-response-media{display:inline-block;margin-top:8px;color:var(--blue);font-size:.8rem;font-weight:800}.not-submitted{margin:15px 0 0;color:var(--muted)}.not-submitted-roster{padding:14px 17px;border:1px solid var(--line);border-radius:9px;background:white;color:var(--muted)}.not-submitted-roster summary{color:var(--navy);font-weight:800;cursor:pointer}.not-submitted-roster p{margin:9px 0 0;font-size:.84rem}.grade-form{display:grid;grid-template-columns:180px 1fr;gap:14px}.grade-form .feedback-field{grid-column:2}.grade-actions{grid-column:1/-1}.grade-actions .primary{border:0;border-radius:8px;padding:10px 14px;font-weight:800;cursor:pointer}
.assessment-security-review{display:grid;gap:5px;margin:0 0 13px;padding:11px 13px;border:1px solid #9fc5b7;border-radius:8px;background:#e7f5ef;color:#155a46}.assessment-security-review>strong{font-size:.84rem}.assessment-security-review>span,.assessment-security-review p,.assessment-security-review details{font-size:.76rem}.assessment-security-review.locked{border-color:#d3a09a;background:#f8e9e7;color:#843b33}.assessment-security-review summary{font-weight:800;cursor:pointer}.assessment-security-review ul{margin:8px 0 0;padding-left:20px}
.student-dialog{width:min(680px,calc(100vw - 28px));max-height:90vh;padding:0;border:0;border-radius:14px;color:var(--ink);box-shadow:var(--shadow)}
.student-dialog::backdrop{background:rgba(7,24,38,.72);backdrop-filter:blur(4px)}
.dialog-card{position:relative;padding:30px}.dialog-close{position:absolute;right:15px;top:11px;border:0;background:transparent;color:var(--muted);font-size:1.6rem;cursor:pointer}
.dialog-card h2{margin:0;color:var(--navy);font:700 2.1rem Georgia,serif}.dialog-username{margin:5px 0 24px;color:var(--muted)}
.dialog-card h3{margin:0 0 10px;color:var(--navy);font-size:1rem}
.score-details{padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.score-details>div{max-height:240px;overflow:auto}.score-details article{display:flex;justify-content:space-between;gap:20px;padding:11px 0;border-top:1px solid #edf0f2}.score-details article:first-child{border-top:0}.score-details strong,.score-details small{display:block}.score-details small{margin-top:3px;color:var(--muted);font-size:.75rem}.score-details b{color:var(--blue)}
.reset-panel{padding-top:18px}.reset-panel>p{color:var(--muted);font-size:.86rem}.danger{border-color:#d7aaa4;color:var(--red)}
.temporary-password{margin-top:13px;padding:14px;border:1px solid #9fd3c5;border-radius:9px;background:#ebf7f3;display:grid;grid-template-columns:1fr auto;gap:4px 12px}.temporary-password>span,.temporary-password>small{grid-column:1/-1;color:#44675e;font-size:.76rem}.temporary-password strong{font:700 1.4rem ui-monospace,monospace;letter-spacing:.06em}.temporary-password button{border:0;border-radius:6px;background:var(--navy);color:white;padding:7px 11px;font-weight:700}
.edit-button{border:1px solid var(--line);border-radius:7px;padding:8px 10px;background:white;color:var(--blue);font-weight:800;cursor:pointer}
.edit-notice{margin:0;padding:12px 14px;border-left:3px solid var(--blue);border-radius:0 8px 8px 0;background:#eaf0fb;color:#31557a;font-size:.84rem}
.current-media{display:grid;gap:6px;margin-top:7px;padding:9px;border:1px solid var(--line);border-radius:7px;background:#f7f9fa}.option-editor>.current-media{grid-column:3/-1}.current-media img{margin:0;max-height:145px}.current-media audio{width:min(100%,360px)}
.account-edit-panel{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:18px 0;border-top:1px solid var(--line)}.account-edit-panel label{display:grid;gap:6px;color:var(--navy);font-size:.82rem;font-weight:800}.account-edit-panel label:first-child{grid-column:1/-1}.account-edit-panel input,.account-edit-panel select{width:100%;border:1px solid var(--line);border-radius:7px;padding:10px;background:white;color:var(--ink)}.account-actions{grid-column:1/-1;display:flex;align-items:center;gap:12px}.account-actions button{border:0;border-radius:8px;padding:10px 14px;background:var(--blue);color:white;font-weight:800;cursor:pointer}.account-actions span{color:var(--muted);font-size:.78rem}
.delete-account-panel{margin-top:18px;padding:16px;border:1px solid #e2bbb6;border-radius:9px;background:#fff8f7}.delete-account-panel p{margin:0 0 11px;color:#7d4b40;font-size:.83rem}
.read-only-grade{display:grid;gap:5px;padding:15px;border:1px solid #bad4ca;border-radius:9px;background:#edf8f4}.read-only-grade strong{color:#17664f}.read-only-grade p{margin:0}.read-only-grade small{color:var(--muted)}
.media-upload-field input[type="file"],.feedback-media-field input[type="file"]{padding:9px;border:1px dashed #aebdc6;background:#f8fafb}.remove-media-field{display:flex!important;grid-template-columns:auto 1fr;align-items:center;justify-content:start;gap:8px!important;color:#7d4b40!important}.remove-media-field input,.remove-feedback-media input{width:auto!important}.current-message-media,.current-feedback-media,.message-media{display:grid;gap:8px;margin-top:10px;padding:11px;border:1px solid var(--line);border-radius:8px;background:#f7f9fa}.current-message-media strong,.message-media>small,.current-feedback-media>small{color:var(--muted);font-size:.78rem}.message-media img,.current-message-media img,.current-feedback-media img{display:block;width:min(100%,420px);max-height:300px;object-fit:contain;border-radius:8px;background:white}.message-media audio,.current-message-media audio,.current-feedback-media audio{width:min(100%,480px)}.message-video{display:block;width:min(100%,560px);max-height:360px;border-radius:8px;background:#0b1720}.feedback-media-field{grid-column:1/-1}.feedback-media-field>small{color:var(--muted);font-weight:400}.current-feedback-media{margin-top:4px}.remove-feedback-media{display:flex!important;grid-template-columns:auto 1fr;align-items:center;justify-content:start;gap:8px!important;color:#7d4b40!important;font-weight:700!important}
.permission-summary{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 18px;padding:16px 18px;border-left:4px solid var(--blue);border-radius:0 10px 10px 0;background:#eaf0fb;color:#31557a}.permission-summary span{font-size:.86rem}.staff-username{margin-bottom:7px!important;color:var(--blue);font-weight:800}.staff-status{display:block;margin-top:11px;color:var(--muted)}.staff-controls{min-width:210px;display:grid;justify-items:end;gap:10px}.staff-controls>.danger{cursor:pointer}.staff-password{width:100%;display:grid;grid-template-columns:1fr auto;align-items:center;gap:5px 10px;padding:12px;border:1px solid #9fd3c5;border-radius:8px;background:#ebf7f3}.staff-password small{grid-column:1/-1;color:#44675e}.staff-password strong{font:700 1.15rem ui-monospace,monospace;letter-spacing:.04em}.staff-password button{padding:6px 9px}.staff-loading{padding:24px;color:var(--muted)}
.staff-login-summary{display:block;margin-top:5px;color:#31557a}.login-history-card{margin-top:20px}.login-history-list{display:grid}.login-history-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 24px;border-top:1px solid #e8edf0}.login-history-row:first-child{border-top:0}.login-history-row strong,.login-history-row small{display:block}.login-history-row small,.login-history-row time{margin-top:3px;color:var(--muted);font-size:.78rem}
.chat-card{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:white;box-shadow:var(--shadow)}.chat-messages{height:min(54vh,540px);min-height:330px;overflow-y:auto;padding:22px;background:#edf2f5;display:flex;flex-direction:column;gap:12px}.chat-messages:empty{display:none}.chat-message{width:min(78%,680px);align-self:flex-start;padding:12px 14px;border:1px solid var(--line);border-radius:4px 14px 14px;background:white;box-shadow:0 4px 13px rgba(16,42,67,.06)}.chat-message.own-message{align-self:flex-end;border-color:#9fc5b7;border-radius:14px 4px 14px 14px;background:#e7f5ef}.chat-message-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:6px}.chat-message-heading strong{color:var(--navy);font-size:.82rem}.chat-message-heading time{color:var(--muted);font-size:.71rem}.chat-message p{margin:0;font-size:.9rem}.chat-empty{padding:42px 22px;text-align:center;color:var(--muted)}.chat-empty strong,.chat-empty span{display:block}.chat-empty strong{color:var(--navy);font:700 1.2rem Georgia,serif}.chat-form{display:grid;gap:8px;padding:18px 22px;border-top:1px solid var(--line)}.chat-form label{color:var(--navy);font-size:.8rem;font-weight:800}.chat-form textarea{width:100%;resize:vertical;border:1px solid var(--line);border-radius:8px;padding:11px;color:var(--ink);outline:none}.chat-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(45,108,223,.11)}.chat-form>div{display:flex;align-items:center;justify-content:space-between;gap:16px}.chat-form small{color:var(--muted)}.chat-form .primary{border:0;border-radius:8px;padding:10px 16px;background:var(--blue);color:white;font-weight:800;cursor:pointer}
.chat-media-field{display:grid;gap:5px}.chat-media-field input[type="file"]{width:100%;padding:9px;border:1px dashed #aebdc6;border-radius:8px;background:#f8fafb;color:var(--ink);font-weight:400}.chat-media-field small{font-weight:400}.chat-message-media{display:grid;gap:6px;margin-top:9px}.chat-message-media img{display:block;width:min(100%,440px);max-height:320px;object-fit:contain;border-radius:8px;background:white}.chat-message-media audio,.chat-message-media video{display:block;width:100%;max-width:560px}.chat-message-media video{max-height:360px;border-radius:8px;background:#0b1720}.chat-message-media small{overflow-wrap:anywhere;color:var(--muted);font-size:.72rem}
.chat-message-actions{display:flex;justify-content:flex-end;gap:6px;margin-top:9px}.chat-message-actions button{border:1px solid #abc0cb;border-radius:6px;padding:4px 8px;background:rgba(255,255,255,.7);color:var(--blue);font-size:.72rem;font-weight:800;cursor:pointer}.chat-message-actions .delete-chat-message{border-color:#d7aaa4;color:var(--red)}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,30px);padding:11px 16px;border-radius:8px;background:var(--navy);color:white;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.2s;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}
.teacher-auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,var(--navy) 0 46%,#1f5670 46% 64%,var(--paper) 64%)}
.teacher-auth-card{width:min(560px,100%);padding:42px;border-radius:16px;background:white;box-shadow:var(--shadow)}
.teacher-auth-card .portal-brand{color:var(--navy);margin-bottom:52px}.teacher-auth-card h1{margin:0;color:var(--navy);font:700 clamp(2.1rem,7vw,3.4rem)/1.05 Georgia,serif;letter-spacing:-.04em}.teacher-auth-card>p:not(.eyebrow){margin:18px 0;color:var(--muted);font-size:1rem}.teacher-signin{display:flex;justify-content:space-between;align-items:center;margin-top:25px;text-decoration:none}.back-link{display:inline-block;margin-top:18px;color:var(--muted);font-size:.86rem;text-decoration:none}
.staff-login-form{display:grid;gap:14px;margin-top:23px}.staff-login-form label{display:grid;gap:6px;color:var(--navy);font-size:.88rem;font-weight:800}.staff-login-form input{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px;color:var(--ink);outline:none}.staff-login-form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(45,108,223,.11)}.staff-login-form small{color:var(--muted);font-weight:400}.staff-login-form .teacher-signin{width:100%;margin-top:0}.auth-error{min-height:20px;margin:0!important;color:var(--red)!important;font-size:.82rem!important}.owner-divider{display:flex;align-items:center;gap:12px;margin:24px 0 13px;color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.08em}.owner-divider::before,.owner-divider::after{content:"";height:1px;flex:1;background:var(--line)}.owner-signin{display:block;border:1px solid var(--line);border-radius:8px;padding:11px;text-align:center;color:var(--navy);font-size:.84rem;font-weight:800;text-decoration:none}
@media(max-width:820px){.portal-heading{align-items:start;flex-direction:column}.filters{grid-template-columns:1fr 1fr}.filters p{grid-column:1/-1;justify-self:start}.metrics{grid-template-columns:1fr 1fr}.grading-filters{grid-template-columns:1fr}.grade-form{grid-template-columns:1fr}.grade-form .feedback-field{grid-column:auto}.option-editor{grid-template-columns:auto 22px 1fr}.option-editor .compact-upload{grid-column:3}}
@media(max-width:520px){.portal-header{padding:0 16px}.owner-chip{display:none}.portal-main{width:calc(100% - 24px);padding-top:30px}.portal-actions{width:100%}.portal-actions button{flex:1}.portal-tabs button{font-size:.78rem}.filters{grid-template-columns:1fr}.filters p{grid-column:auto}.metrics{gap:8px}.metrics article{min-height:94px;padding:16px}.metrics strong{font-size:1.8rem}.records-heading{padding:20px}.teacher-form{grid-template-columns:1fr;padding:18px}.teacher-form .wide,.teacher-form .full,.teacher-form .form-actions{grid-column:auto}.form-actions{align-items:stretch;flex-direction:column}.management-item{grid-template-columns:1fr;padding:18px}.item-actions{justify-content:flex-start}.grading-card{padding:18px}.grade-actions{align-items:stretch;flex-direction:column}.teacher-auth-card{padding:30px 24px}.dialog-card{padding:27px 20px}.question-builder{padding:12px}.question-builder-heading,.option-heading{align-items:stretch;flex-direction:column}.question-editor-grid{grid-template-columns:1fr}.question-editor-grid .wide{grid-column:auto}.option-editor{grid-template-columns:auto 20px 1fr}.assessment-answer-heading{flex-direction:column}}
@media(max-width:520px){.item-actions{flex-wrap:wrap}.account-edit-panel{grid-template-columns:1fr}.account-edit-panel label:first-child,.account-actions{grid-column:auto}.account-actions{align-items:stretch;flex-direction:column}}
@media(max-width:650px){.permission-summary{align-items:flex-start;flex-direction:column}.staff-item{grid-template-columns:1fr}.staff-controls{justify-items:stretch}.staff-controls>.danger{width:100%}}
@media(max-width:650px){.chat-message{width:92%}.chat-form>div,.login-history-row{align-items:flex-start;flex-direction:column}.chat-form .primary{width:100%}}
.chat-mode-tabs{display:flex;gap:8px;margin-bottom:12px}.chat-mode-tabs button{border:1px solid var(--line);border-radius:8px;padding:9px 14px;background:white;color:var(--navy);font-weight:800;cursor:pointer}.chat-mode-tabs button.active{border-color:var(--navy);background:var(--navy);color:white}.private-chat-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:14px}.private-teacher-list{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:white}.private-teacher-list>strong{display:block;padding:15px 16px;border-bottom:1px solid var(--line);color:var(--navy)}.private-teacher-list>div{display:grid;max-height:620px;overflow-y:auto}.private-teacher-list button{display:grid;gap:2px;padding:12px 15px;border:0;border-bottom:1px solid #e8edf0;background:white;color:var(--ink);text-align:left;cursor:pointer}.private-teacher-list button.active{background:#eaf0fb;color:var(--blue)}.private-teacher-list small{color:var(--muted);font-size:.69rem}.private-chat-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 18px;border-bottom:1px solid var(--line)}.private-chat-heading>div{display:grid;gap:3px}.private-chat-heading strong{color:var(--navy)}.private-chat-heading small{color:var(--muted)}.private-conversation .chat-messages{height:min(46vh,440px)}.screen-share-card{display:grid;grid-template-columns:1fr auto;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);background:#f7f9fa}.screen-share-card strong{color:var(--navy)}.screen-share-card p{margin:3px 0 0;color:var(--muted);font-size:.8rem}.screen-share-actions{display:flex;align-items:center;gap:8px}.screen-share-video{grid-column:1/-1;width:100%;max-height:480px;border-radius:9px;background:#08131c}.staffroom-create-form{margin-top:18px}.staffroom-create-form h3{margin:0;color:var(--navy)}.staffroom-create-form p{margin:5px 0;color:var(--muted)}
@media(max-width:760px){.private-chat-layout{grid-template-columns:1fr}.private-teacher-list>div{grid-template-columns:repeat(2,minmax(0,1fr));max-height:230px}.screen-share-card{grid-template-columns:1fr}.screen-share-actions,.screen-share-video{grid-column:1}.screen-share-actions{flex-wrap:wrap}}
.download-pdf-link{display:inline-flex;align-items:center;width:fit-content;margin-top:10px;border:1px solid #b8c9e3;border-radius:8px;padding:9px 12px;background:#f1f5fc;color:var(--blue);font-size:.82rem;font-weight:800;text-decoration:none;overflow-wrap:anywhere}.download-pdf-link:hover{text-decoration:underline}.current-message-media .download-pdf-link{margin-top:0}

.register-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.register-actions button{border:0;border-radius:8px;padding:10px 14px;color:white;background:var(--navy);font:700 .875rem Arial,sans-serif;cursor:pointer}#newStudentCredentials{margin-top:18px}#addStudentForm label{font-size:.875rem}

.portal-tabs .resources-tab{display:inline-flex;align-items:center;gap:7px}
.resources-status{font-size:.875rem;color:var(--muted);margin:0 0 24px}
.resource-section{margin-bottom:28px}.resource-section>h3{font-size:1rem;color:var(--navy);margin:0 0 14px}
.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.resource-card{display:flex;flex-direction:column;align-items:flex-start;border:1px solid var(--line);border-radius:12px;background:white;padding:22px}
.resource-card h4{font-size:1.125rem;color:var(--navy);margin:8px 0 10px}
.resource-format{font-size:.875rem;font-weight:700;color:var(--blue);margin:0}
.resource-description{font-size:1rem;line-height:1.55;margin:0 0 16px;color:var(--muted)}
.resource-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:auto}
.resource-card .download-pdf-link{margin-top:0;font-size:.875rem;min-height:44px}
.resource-preview-button{min-height:44px;padding:10px 14px;border:1px solid var(--navy);border-radius:8px;background:var(--navy);color:white;font:700 .875rem Arial,sans-serif;cursor:pointer}
.resource-preview-dialog{width:min(1100px,calc(100vw - 32px));height:min(90vh,1000px);max-height:90dvh;padding:0;border:0;border-radius:14px;color:var(--ink);background:#f3f6f9}
.resource-preview-dialog[open]{display:flex;flex-direction:column}.resource-preview-dialog::backdrop{background:rgb(10 25 40 / .65)}
.resource-preview-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;border-bottom:1px solid var(--line);background:white}
.resource-preview-heading h2{font-size:1.4rem;margin:0}.resource-preview-heading .eyebrow{margin:0 0 6px}
.resource-preview-heading button,.resource-preview-controls button{min-height:44px;padding:10px 14px;background:white;color:var(--navy);border:1px solid var(--line);border-radius:8px;font:700 .875rem Arial,sans-serif;cursor:pointer}
.resource-preview-controls button:disabled{opacity:.45;cursor:default}.resource-preview-status{margin:0;padding:12px 24px;font-size:.875rem;color:var(--muted);background:white}
.resource-preview-controls{display:flex;align-items:end;flex-wrap:wrap;gap:12px;padding:0 24px 16px;background:white;border-bottom:1px solid var(--line)}
.resource-preview-controls label{display:grid;gap:6px;min-width:130px;font-size:.875rem;font-weight:700}.resource-preview-controls select{max-width:100%;min-height:44px;padding:10px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--ink);font:inherit}
.resource-preview-body{overflow:auto;padding:20px 24px;min-height:0;flex:1}
.workbook-preview-intro p{font-size:1rem;line-height:1.55;margin:0 0 12px}.workbook-preview-intro p:first-child{font-weight:700;color:var(--navy)}
.workbook-preview-rows{display:grid;gap:14px}.workbook-preview-row{padding:20px;border:1px solid var(--line);border-radius:10px;background:white}
.workbook-preview-row h3{font-size:1rem;margin:0 0 14px;color:var(--navy)}.workbook-preview-row dl{display:grid;grid-template-columns:210px minmax(0,1fr);gap:8px 18px;margin:0}
.workbook-preview-row dt{font-size:.875rem;font-weight:700;color:var(--muted)}.workbook-preview-row dd{font-size:1rem;line-height:1.55;margin:0;overflow-wrap:anywhere}
.pdf-preview-frame{overflow:auto;width:100%;text-align:center}.pdf-preview-page{display:block;width:100%;max-width:1000px;height:auto;margin:0 auto;background:white;box-shadow:0 2px 10px #ccd5dc}
.pdf-preview-frame.zoomed .pdf-preview-page{width:1500px;max-width:none;margin:0}
.pdf-preview-text{margin-top:16px;background:white;border:1px solid var(--line);border-radius:8px;padding:16px;font-size:1rem}.pdf-preview-text summary{cursor:pointer;font-weight:700;color:var(--navy)}.pdf-preview-text p{line-height:1.6}
@media(max-width:600px){.resource-preview-dialog{width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;margin:0;border-radius:0}.resource-preview-heading{padding:16px;gap:12px}.resource-preview-heading h2{font-size:1.125rem}.resource-preview-heading .eyebrow{font-size:.75rem}.resource-preview-status{padding:12px 16px}.resource-preview-controls{padding:0 16px 14px;gap:8px}.resource-preview-controls label{min-width:120px;flex:1}.resource-preview-body{padding:16px}.workbook-preview-row{padding:16px}.workbook-preview-row dl{grid-template-columns:1fr;gap:5px}.workbook-preview-row dd{margin-bottom:10px}}
@media(max-width:900px){.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.resource-grid{grid-template-columns:1fr}.resource-card{padding:18px}}

.formative-bank { margin-bottom: 32px; padding: 24px; background: #eff6f3; border: 1px solid #d3e4dc; border-radius: 18px; }
.formative-filters { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 16px; }
.formative-filters label { display: grid; gap: 6px; font-size: .85rem; font-weight: 700; }
.formative-filters input, .formative-filters select { padding: 10px 12px; border: 1px solid #c6d7ce; border-radius: 8px; background: #fff; font: inherit; }
.formative-bank-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.formative-template { padding: 20px; background: #fff; border: 1px solid #dbe6df; border-radius: 12px; }
.formative-template h3 { margin: 6px 0 10px; font-size: 1rem; }
.formative-template p { line-height: 1.55; font-size: .88rem; }
.formative-template .primary { margin-top: 14px; padding: 10px 14px; border: 0; border-radius: 8px; background: #176b4a; color: white; font-weight: 700; cursor: pointer; }
.formative-template .primary:disabled { opacity: .55; cursor: default; }
@media (max-width: 720px) { .formative-bank { padding: 16px; } .formative-bank-list { grid-template-columns: 1fr; } }