:root{color:#171717;background:#f4f6f3;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{background:#eef2f6;min-height:100vh;padding:12px}.app-header{align-items:start;background:#fff;border:1px solid #dbe4ef;border-radius:8px;display:grid;gap:12px;margin:0 auto 12px;max-width:960px;padding:14px}.app-header h1{font-size:24px;line-height:1.2;margin:4px 0 0}.app-nav{display:grid;gap:8px;grid-template-columns:repeat(2,minmax(0,1fr))}.app-nav-link{background:#1f5f8b;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:14px;font-weight:800;min-height:42px;padding:11px 12px;text-align:center}.app-nav-link.is-active{background:#0f3a57;box-shadow:inset 0 0 0 2px #fff6}.app-entry{margin:0 auto 12px;max-width:960px}.teacher-workspace{background:#f8fafc;color:#111827;display:grid;gap:12px;margin:0 auto;max-width:760px;min-height:100vh;padding:14px}.teacher-hero{align-items:start;background:#fff;border:1px solid #dbe4ef;border-radius:8px;display:grid;gap:14px;grid-template-columns:minmax(0,1fr);padding:18px}.teacher-kicker,.library-version{color:#1f5f8b;font-size:12px;font-weight:800;letter-spacing:0}.teacher-hero h1{font-size:28px;line-height:1.18;margin-top:5px}.teacher-hero p,.teacher-section p,.prep-entry p{color:#475467;line-height:1.55}.library-version{background:#eef6ff;border:1px solid #bfd9f3;border-radius:8px;justify-self:start;padding:6px 9px}.teacher-section,.prep-entry,.feedback-entry{background:#fff;border:1px solid #dbe4ef;border-radius:8px;padding:16px}.section-title-row{align-items:start;display:flex;gap:10px;justify-content:space-between;margin-bottom:10px}.section-title-row span{color:#667085;font-size:12px;white-space:nowrap}.teacher-section small,.source-item small,.interaction-item small{color:#1f5f8b;display:block;font-size:12px;line-height:1.45;margin-top:10px}.interaction-label{color:#5a6b82;display:block;font-size:11px;font-weight:600;letter-spacing:.04em;margin-bottom:2px}.interaction-goal,.interaction-risk{font-size:13px;line-height:1.5;margin:0}.interaction-risk{background:#fff6f3;border-left:3px solid #e08a6b;border-radius:6px;color:#8a3d22;padding:8px 10px}.interaction-steps ol{display:grid;gap:4px;margin:4px 0 0;padding-left:20px}.interaction-steps li{font-size:13px;line-height:1.5}.check-hint{color:#5a6b82;font-size:12px;line-height:1.5;margin:0 0 10px}.check-field{color:#2b3a4f;display:grid;font-size:13px;font-weight:600;gap:6px;margin-bottom:10px}.check-field textarea{border:1px solid #cdd8e6;border-radius:8px;font:inherit;font-weight:400;padding:10px;resize:vertical;width:100%}.check-findings{display:grid;gap:10px;margin-top:12px}.check-finding{border:1px solid #e4eaf2;border-left-width:3px;border-radius:8px;display:grid;gap:6px;padding:10px 12px}.check-finding h3{font-size:14px;margin:0}.check-finding small{color:#1f5f8b;font-size:12px}.check-known_error{background:#fff6f3;border-left-color:#e08a6b}.check-source_support{background:#f1f9f3;border-left-color:#5aa06b}.check-correction{font-weight:600}.check-human_review,.check-insufficient_evidence{background:#f7f9fc;border-left-color:#9aa7b8}.source-list,.interaction-list{display:grid;gap:10px}.source-item,.interaction-item{background:#fbfcfe;border:1px solid #e4eaf2;border-radius:8px;display:grid;gap:10px;padding:12px}.source-item dl{display:grid;gap:8px;grid-template-columns:repeat(2,minmax(0,1fr));margin:0}.source-media-list{display:grid;gap:8px}.source-media-image{border:1px solid #e4eaf2;border-radius:6px;height:auto;max-width:100%}.citation-drilldown{display:grid;gap:8px}.citation-drilldown button{background:#eef6ff;border:1px solid #bfd9f3;border-radius:8px;color:#1f5f8b;font-size:13px;font-weight:800;min-height:38px;padding:8px 10px}.citation-panel{background:#f8fafc;border:1px solid #dbe4ef;border-radius:8px;padding:10px}.citation-panel dl{display:grid;gap:8px;margin:0}.citation-panel dt{color:#667085;font-size:11px;margin-bottom:3px}.citation-panel dd{color:#111827;margin:0;overflow-wrap:anywhere}.source-item dl div{background:#f3f6f9;border-radius:6px;padding:8px}.source-item dt{color:#667085;font-size:11px;margin-bottom:4px}.source-item dd{color:#111827;font-size:12px;margin:0;overflow-wrap:anywhere}.interaction-item{grid-template-columns:minmax(0,1fr) auto}.interaction-item small{grid-column:1 / -1}.interaction-item>span{align-self:start;background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;color:#9a3412;font-size:12px;font-weight:800;padding:5px 8px;white-space:nowrap}.prep-entry{align-items:center;display:grid;gap:12px}.prep-entry button,.feedback-entry button{background:#1f5f8b;border:0;border-radius:8px;color:#fff;font-weight:800;min-height:44px;padding:10px 14px}.prep-card-list,.feedback-entry,.feedback-options{display:grid;gap:10px}.prep-card-item{background:#fbfcfe;border:1px solid #e4eaf2;border-radius:8px;display:grid;gap:10px;padding:12px}.prep-card-item h3{margin:0 0 4px}.prep-card-item p,.prep-card-item small,.privacy-notice{color:#475467;line-height:1.5}.prep-message{background:#e6f4ef;border:1px solid #b7dfcd;border-radius:8px;color:#276749;margin:0;padding:10px}.prep-error{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;color:#991b1b;margin:0;padding:10px}.feedback-options{grid-template-columns:repeat(2,minmax(0,1fr))}.feedback-options button{background:#eef6ff;border:1px solid #bfd9f3;color:#1f5f8b}.feedback-options button.is-active{background:#1f5f8b;color:#fff}.feedback-target{display:flex;align-items:center;gap:8px;font-size:.85rem;color:#4c5560;background:#f2f6fa;border-radius:8px;padding:6px 10px}.feedback-message-field{color:#344054;display:grid;font-size:14px;font-weight:800;gap:6px}.feedback-message-field textarea{border:1px solid #cbd5e1;border-radius:8px;min-height:76px;padding:10px}.empty-state{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:8px;color:#475467;margin:0;padding:12px}.parent-answer-panel{background:#fff;border:1px solid #dbe4ef;border-radius:8px;color:#111827;display:grid;gap:14px;margin:14px auto;max-width:760px;padding:16px}.parent-answer-header{align-items:start;display:flex;gap:12px;justify-content:space-between}.status-chip{background:#e6f4ef;border:1px solid #b7dfcd;border-radius:8px;color:#276749;font-size:12px;font-weight:800;padding:6px 9px;white-space:nowrap}.status-chip.is-refused{background:#fff7ed;border-color:#fed7aa;color:#9a3412}.parent-answer-grid{display:grid;gap:10px;grid-template-columns:minmax(0,1fr)}.answer-block{background:#fbfcfe;border:1px solid #e4eaf2;border-radius:8px;display:grid;gap:8px;padding:12px}.answer-block p,.answer-block li{color:#475467;line-height:1.55}.answer-block ul,.answer-citations ul{display:grid;gap:6px;margin:0;padding-left:18px}.caution-block{background:#fff7ed;border-color:#fed7aa}.adjustment-block{background:#eef6ff;border-color:#bfd9f3}.answer-citations{border-top:1px solid #e4eaf2;display:grid;gap:8px;padding-top:12px}.answer-citations li{color:#1f5f8b;line-height:1.45}.answer-citations span{display:block;font-size:12px;font-weight:800;margin-bottom:3px}.answer-citations small{display:block}.citation-badge{border:1px solid #d7dee8;border-left:4px solid #667085;border-radius:8px;display:grid;gap:8px;grid-template-columns:repeat(3,minmax(0,1fr));margin:10px 0 0;padding:10px}.citation-badge.source-org_standard{border-left-color:#276749}.citation-badge.source-external_authority{border-left-color:#1f5f8b}.citation-badge.source-org_practice{border-left-color:#9a3412}.citation-badge.source-reference_pointer{border-left-color:#7c3aed}.citation-badge dt{color:#667085;font-size:11px;margin-bottom:4px}.citation-badge dd{color:#111827;font-size:12px;font-weight:750;margin:0;overflow-wrap:anywhere}.trusted-fact-card{background:#fff;border:1px solid #dbe4ef;border-radius:8px;padding:14px}.trusted-fact-card.is-untrusted{background:#fff7ed;border-color:#fed7aa}.admin-shell{min-height:100vh;padding:20px}.topbar{align-items:center;display:flex;gap:18px;justify-content:space-between;margin:0 auto 16px;max-width:1280px}.eyebrow,.section-label{color:#276749;font-size:12px;font-weight:800;letter-spacing:0;margin:0 0 6px}h1,h2,h3,p{margin:0}h1{font-size:30px;line-height:1.2}h2{font-size:20px;line-height:1.25}h3{font-size:16px;line-height:1.35}.role-switch,.board-tabs{background:#e7ece7;border:1px solid #d6ded7;border-radius:8px;display:flex;gap:4px;padding:4px}.role-switch button,.board-tabs button{background:transparent;border:0;border-radius:6px;color:#4b5563;min-height:38px;padding:8px 12px}.role-switch button.is-active,.board-tabs button.is-active{background:#fff;color:#101828;font-weight:750;box-shadow:0 1px 2px #10182814}.status-strip,.workspace-grid{margin:0 auto;max-width:1280px}.status-strip{background:#fff;border:1px solid #dce3dd;border-radius:8px;display:grid;gap:1px;grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:16px;overflow:hidden}.status-strip div{background:#fbfcfb;min-height:72px;padding:14px}.status-strip span{color:#667085;display:block;font-size:12px;margin-bottom:8px}.status-strip strong{color:#101828;font-size:18px}.dashboard-widgets{display:grid;gap:10px;grid-template-columns:repeat(4,minmax(0,1fr));margin:0 auto 16px;max-width:1280px}.dashboard-widget{background:#fff;border:1px solid #dce3dd;border-radius:8px;padding:14px}.dashboard-widget h2{font-size:16px;line-height:1.25;margin:0 0 10px}.widget-metrics{display:grid;gap:8px;grid-template-columns:repeat(2,minmax(0,1fr))}.widget-metrics span{background:#f8fafc;border:1px solid #e4eaf2;border-radius:8px;color:#344054;font-size:12px;font-weight:800;min-height:34px;overflow-wrap:anywhere;padding:8px}.workspace-grid{align-items:start;display:grid;gap:16px;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}.panel{background:#fff;border:1px solid #dce3dd;border-radius:8px;padding:18px}.upload-panel,.queue-panel{grid-row:span 2}.panel-heading{align-items:start;display:flex;gap:12px;justify-content:space-between;margin-bottom:16px}.badge{background:#e6f4ef;border:1px solid #b7ded0;border-radius:999px;color:#0f5b47;font-size:12px;font-weight:800;padding:5px 9px;white-space:nowrap}.badge.muted{background:#eef1f4;border-color:#d3d9df;color:#475467}.badge.danger{background:#fff0ee;border-color:#ffc7bd;color:#a13b2b}.board-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:16px}.board-tabs button{align-items:center;display:flex;flex-direction:column;gap:3px;justify-content:center;min-height:58px}.board-tabs small{color:#667085;font-size:11px}.upload-form{display:grid;gap:12px;grid-template-columns:repeat(2,minmax(0,1fr))}.wide-field{grid-column:1 / -1}.upload-form.compact{grid-template-columns:1fr}.upload-groups{display:grid;gap:12px}.upload-group{border:1px solid #dbe4ef;border-radius:8px;padding:0 12px}.upload-group>summary{color:#1f3a52;cursor:pointer;font-size:14px;font-weight:800;list-style:none;padding:12px 0}.upload-group>summary::-webkit-details-marker{display:none}.upload-group>summary:before{content:"▸";display:inline-block;margin-right:8px;transition:transform .15s ease}.upload-group[open]>summary:before{transform:rotate(90deg)}.upload-group>.upload-form{padding-bottom:12px}label{color:#344054;display:grid;font-size:13px;font-weight:700;gap:7px}input,select,textarea{background:#fbfcfb;border:1px solid #cfd8d2;border-radius:6px;color:#101828;min-height:42px;padding:9px 10px;width:100%}textarea{min-height:84px;resize:vertical}.checkbox-row{align-items:center;display:flex;gap:8px;margin-top:12px}.checkbox-row input{min-height:auto;width:auto}.risk-note{background:#fff7ed;border:1px solid #fed7aa;border-radius:6px;color:#9a3412;font-size:13px;font-weight:800;padding:9px 10px}.metadata-line{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.metadata-line span,.review-summary span,.risk-pill{background:#f4f7f8;border:1px solid #dbe4e8;border-radius:999px;color:#475467;font-size:12px;padding:5px 9px}.review-summary{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.risk-pill{background:#fff0ee;border-color:#ffc7bd;color:#a13b2b;font-weight:800}.training-dashboard{display:grid;gap:14px}.evaluation-table{border-collapse:collapse;display:block;overflow-x:auto;width:100%}.evaluation-table caption{color:#344054;font-size:13px;font-weight:800;margin-bottom:8px;text-align:left}.evaluation-table th,.evaluation-table td{border:1px solid #dce3dd;font-size:13px;min-width:120px;overflow-wrap:anywhere;padding:8px;text-align:left;vertical-align:top}.evaluation-table th{background:#f4f7f8;color:#344054}.preflight-panel,.warning-list{border:1px solid #dce3dd;border-radius:8px;padding:12px}.warning-list{background:#fffbeb;border-color:#fde68a}.primary-action,.secondary-action,.queue-actions button,.version-row button{border-radius:6px;font-weight:800;min-height:38px;padding:8px 12px}.primary-action{background:#0f766e;border:1px solid #0d655e;color:#fff;width:100%}.secondary-action,.queue-actions button,.version-row button{background:#fff;border:1px solid #cfd8d2;color:#344054}.queue-list{display:grid;gap:10px}.queue-item{border:1px solid #dce3dd;border-radius:8px;display:grid;gap:14px;grid-template-columns:minmax(0,1fr) auto;min-height:92px;padding:14px}.queue-item span{color:#64748b;font-size:12px;font-weight:800}.queue-item p{color:#667085;font-size:13px;margin-top:6px}.queue-actions{align-items:end;display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}.version-list{display:grid;gap:8px}.version-row{align-items:center;border:1px solid #dce3dd;border-radius:8px;display:grid;gap:10px;grid-template-columns:120px 1fr 1fr 80px auto;min-height:54px;padding:10px}.version-row span{color:#667085;font-size:13px}@media(max-width:900px){.admin-shell{padding:14px}.topbar{align-items:stretch;flex-direction:column}h1{font-size:26px}.role-switch{overflow-x:auto}.status-strip,.dashboard-widgets,.workspace-grid{grid-template-columns:1fr}.upload-panel,.queue-panel{grid-row:auto}.upload-form,.board-tabs,.queue-item,.version-row{grid-template-columns:1fr}.queue-actions{justify-content:flex-start}}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:linear-gradient(160deg,#eef2f7,#f4f6f3)}.login-card{width:100%;max-width:22rem;display:flex;flex-direction:column;gap:.85rem;padding:1.75rem;border-radius:.9rem;background:#fff;box-shadow:0 12px 30px #0f172a1f}.login-card h1{margin:0;font-size:1.4rem}.login-hint{margin:0;color:#475569;font-size:.85rem}.login-field{display:flex;flex-direction:column;gap:.35rem;font-size:.85rem;color:#1e293b}.login-field input{padding:.6rem .7rem;border:1px solid #cbd5f5;border-radius:.5rem;font-size:1rem}.login-card button[type=submit]{margin-top:.4rem;padding:.7rem;border:none;border-radius:.5rem;background:#2563eb;color:#fff;font-size:1rem;cursor:pointer}.login-card button[type=submit]:disabled{opacity:.6;cursor:progress}.login-error{margin:0;color:#b91c1c;font-size:.85rem}.login-brand{display:flex;align-items:center;gap:.6rem}.login-logo{display:inline-flex;align-items:center;justify-content:center;width:2.2rem;height:2.2rem;border-radius:.6rem;background:#2563eb;color:#fff;font-weight:600;font-size:1.1rem}.login-password-row{display:flex;gap:.4rem}.login-password-row input{flex:1}.login-toggle{border:1px solid #cbd5f5;background:#f8fafc;border-radius:.5rem;padding:0 .7rem;font-size:.8rem;color:#1e293b;cursor:pointer;white-space:nowrap}.app-signout{border:1px solid #cbd5f5;background:transparent;border-radius:.4rem;padding:.3rem .6rem;cursor:pointer}.tenant-brand .version-line{margin:.15rem 0 0;font-size:.78rem;color:#64748b}.lesson-picker{display:flex;gap:.5rem;overflow-x:auto;padding:.5rem 0}.lesson-picker button{flex:0 0 auto;padding:.4rem .8rem;border:1px solid #cbd5f5;border-radius:.5rem;background:#fff;cursor:pointer;white-space:nowrap}.lesson-picker button.is-active{background:#2563eb;color:#fff;border-color:#2563eb}.feedback-management-panel{display:grid;gap:16px}.feedback-panel-section{background:#fbfcfe;border:1px solid #e4eaf2;border-radius:10px;display:grid;gap:10px;padding:14px}.feedback-panel-state{color:#5a6b82;font-size:14px;padding:14px}.feedback-panel-state.is-error{color:#8a3d22}.feedback-top{font-size:14px;margin:0}.feedback-contribution-table,.feedback-sla-table{border-collapse:collapse;font-size:13px;width:100%}.feedback-contribution-table th,.feedback-contribution-table td,.feedback-sla-table th,.feedback-sla-table td{border-bottom:1px solid #eef2f7;padding:6px 8px;text-align:left}.feedback-sla-summary{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}.feedback-sla-summary li{background:#f1f5fb;border-radius:6px;font-size:13px;padding:4px 10px}.feedback-sla-summary li.is-overdue{background:#fff6f3;color:#8a3d22}.parent-answer-console{display:grid;gap:12px}