:root{--bg-page: #e7dcc0;--bg-parchment: #f8f2e2;--bg-card: #fffcf0;--bg-field: #fffdf4;--bg-panel: #f1e7c8;--bg-highlight: #f7ecc9;--green-deep: #2e4a41;--green-deep-from: #3d6052;--on-green: #f0e8d2;--on-green-dim: #a9bca9;--on-green-faint: #7e937f;--on-green-nav: #dce4d2;--terracotta: #b0553c;--terracotta-border: #8f4530;--on-terracotta: #fbf3e0;--alert: #a03a28;--alert-bg: #f3dfd2;--alert-border: #d9a98f;--ocre-dark: #8a6420;--ocre: #b07a28;--ocre-chip-bg: #f1e2b6;--ocre-chip-border: #c9a94f;--ocre-card-bg: #f4e6c4;--ocre-card-border: #d9be7f;--validated: #4e7c63;--validated-bg: #deeae0;--validated-border: #a3c4ac;--validated-text: #2f4a3a;--validated-text-soft: #3d5546;--validated-text-faint: #6b8873;--blue: #5e8797;--blue-dark: #436877;--blue-tag-bg: #dee9ec;--blue-tag-border: #a5c2cb;--blue-info-bg: #dce8e8;--blue-info-border: #a9c4c4;--blue-info-text: #3d6470;--blue-track: #c2d5d5;--bubble-user-bg: #d9e5e3;--bubble-user-border: #b9cfcc;--bubble-user-text: #2c3f3d;--text: #2e241a;--text-serif: #4a3b28;--text-secondary: #7a6b52;--text-muted: #8a7757;--text-faint: #a6906b;--border-soft: #e3d6ae;--border: #d3c297;--border-strong: #cbb98f;--border-brass: #c9b584;--rule: #efe4c2;--disabled-bg: #d6c69e;--disabled-text: #9c8b6b;--r-card: 12px;--r-card-lg: 14px;--r-tile: 11px;--r-field: 10px;--r-field-sm: 9px;--r-btn-sm: 8px;--r-pill: 99px;--r-cite: 5px;--serif: "Source Serif 4", Georgia, serif;--sans: "IBM Plex Sans", system-ui, sans-serif;--mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;--shadow-modal: 0 24px 60px rgba(20, 30, 24, .35);--shadow-press: 0 2px 0 rgba(46, 36, 26, .15);--shadow-press-soft: 0 2px 0 rgba(46, 36, 26, .12);--shadow-press-faint: 0 2px 0 rgba(46, 36, 26, .08);--shadow-press-dark: 0 2px 0 rgba(0, 0, 0, .18);--login-bg: radial-gradient(1100px 600px at 72% -12%, var(--green-deep-from), var(--green-deep));--fleur-coeur: #e8c163}*{box-sizing:border-box}body{margin:0;background:var(--bg-page);font-family:var(--sans);color:var(--text)}a{color:var(--blue)}a:hover{color:var(--blue-dark)}::placeholder{color:var(--text-faint)}input,textarea,button{font-family:inherit;color:inherit}textarea{font-family:var(--sans)}button{border:none;background:none;padding:0;margin:0;font-size:inherit;text-align:left;cursor:pointer}button:disabled{cursor:default}:focus-visible{outline:2px solid var(--ocre);outline-offset:2px}@keyframes rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}.rise{animation:rise .3s ease}.rise-slow{animation:rise .5s ease}.rise-fast{animation:rise .25s ease}.shell{height:100vh;display:flex;overflow:hidden}.shell-col{height:100vh;display:flex;flex-direction:column;overflow:hidden}.spacer{flex:1}.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}.login{flex:1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--login-bg)}.login-card{width:404px;max-width:100%;background:var(--bg-parchment);border:1.5px solid var(--border-strong);border-radius:var(--r-card-lg);padding:36px 34px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow-modal)}.login-card.is-admin{width:390px;padding:34px 32px}.brand{display:flex;align-items:center;gap:10px}.monogram{width:34px;height:34px;flex:none;display:block}.monogram.sm{width:28px;height:28px}.brand-kicker{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ocre-dark);font-weight:600}.brand-title{font-family:var(--serif);font-size:32px;font-weight:600;line-height:1.05}.login-card.is-admin .brand-title{font-size:29px}.login-lede{margin:-4px 0 4px;font-size:13px;line-height:1.5;color:var(--text-secondary)}.field-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:4px}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field input{width:100%}.field-label{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ocre-dark);font-weight:600}.input-code{border:1.5px solid var(--border-strong);border-radius:var(--r-field-sm);padding:11px 10px;font-family:var(--mono);font-size:14px;letter-spacing:.12em;text-align:center;background:var(--bg-field);color:var(--text);outline:none}.input-text{border:1.5px solid var(--border-strong);border-radius:var(--r-field-sm);padding:11px 12px;font-size:13.5px;background:var(--bg-field);color:var(--text);outline:none}.login-note{font-size:11.5px;line-height:1.55;color:var(--text-secondary);margin-top:-4px}.privacy-box{background:var(--blue-info-bg);border:1px solid var(--blue-info-border);border-radius:var(--r-field-sm);padding:11px 13px;font-size:12px;line-height:1.6;color:var(--blue-info-text)}.login-submit{display:flex;align-items:center;justify-content:center;border-radius:var(--r-field);padding:12px;font-size:14px;font-weight:600;margin-top:2px;background:var(--terracotta);color:var(--on-terracotta);box-shadow:var(--shadow-press)}.login-submit:disabled{background:var(--disabled-bg);color:var(--disabled-text);box-shadow:none}.login-foot{font-size:11px;color:var(--text-faint);text-align:center}.login-foot .link{text-decoration:underline;cursor:pointer}.btn-primary{background:var(--terracotta);color:var(--on-terracotta);border-radius:var(--r-field-sm);padding:8px 14px;font-size:12.5px;font-weight:600;box-shadow:var(--shadow-press-soft)}.btn-secondary{border:1.5px solid var(--border-brass);border-radius:var(--r-field-sm);padding:8px 14px;font-size:12.5px;font-weight:500;background:var(--bg-field)}.btn-sm{border:1.5px solid var(--border-brass);border-radius:var(--r-btn-sm);padding:6px 11px;font-size:11.5px;background:var(--bg-field)}.btn-sm.muted{color:var(--text-muted)}.btn-sm.go{background:var(--validated);color:var(--on-terracotta);border-color:var(--validated);padding:6px 12px;font-weight:600}.btn-send{display:flex;align-items:center;background:var(--terracotta);color:var(--on-terracotta);border-radius:var(--r-field);padding:0 19px;font-size:13.5px;font-weight:600}.btn-send:disabled{background:var(--disabled-bg);color:var(--disabled-text)}.btn-link{font-size:12.5px;color:var(--blue-dark)}.sidebar{flex:none;background:var(--green-deep);display:flex;flex-direction:column;color:var(--on-green)}.sidebar-student{width:262px;padding:18px 14px 14px;gap:4px;overflow-y:auto}.sidebar-admin{width:212px;padding:18px 12px 14px;gap:3px}.sidebar-head{display:flex;align-items:center;gap:9px}.sidebar-student .sidebar-head{padding:0 6px 12px}.sidebar-admin .sidebar-head{padding:0 2px 14px}.sidebar-name{font-family:var(--serif);font-size:17px;font-weight:600;white-space:nowrap}.sidebar-sub{font-size:10px;color:var(--on-green-dim)}.btn-new-chat{display:flex;align-items:center;justify-content:center;gap:7px;background:var(--terracotta);color:var(--on-terracotta);border-radius:var(--r-field-sm);padding:10px 12px;font-size:13px;font-weight:600;margin-bottom:8px;box-shadow:var(--shadow-press-dark);width:100%}.chat-group{display:flex;flex-direction:column;gap:3px}.chat-group-head{display:flex;align-items:center;gap:7px;padding:9px 6px 4px;-webkit-user-select:none;user-select:none;width:100%}.chat-group-arrow{font-size:9px;color:var(--on-green-faint);width:9px}.chat-group-label{font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--on-green-dim);font-weight:600}.chat-group-count{font-size:10.5px;color:var(--on-green-faint)}.chat-group-list{display:flex;flex-direction:column;gap:3px}.chat-item{padding:7px 10px;border-radius:var(--r-field-sm);background:#f0e8d20f;color:var(--on-green);border:1.5px solid transparent;width:100%;display:block}.chat-item.is-active{color:var(--text)}.chat-item-title{display:block;font-size:12.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-when{display:block;font-size:10.5px;opacity:.62;margin-top:1px}.sidebar-foot{border-top:1px solid rgba(240,232,210,.22);padding:11px 6px 2px;display:flex;flex-direction:column;gap:6px}.sidebar-foot-row{display:flex;align-items:center;gap:7px}.sidebar-foot-label{font-size:11px;color:var(--on-green-dim)}.sidebar-foot-value{font-family:var(--mono);font-size:10.5px;color:var(--on-green);margin-left:auto}.sidebar-foot-value.dim{color:var(--on-green-faint)}.gauge{height:6px;background:#f0e8d22e;border-radius:3px;overflow:hidden}.gauge>span{display:block;height:6px;border-radius:3px}.nav-item{display:flex;align-items:center;gap:9px;padding:9px 11px;border-radius:var(--r-field-sm);font-size:13px;color:var(--on-green-nav);width:100%}.nav-item.is-active{background:var(--on-green);color:var(--text);font-weight:600}.nav-badge{margin-left:auto;background:var(--ocre);color:var(--on-terracotta);border-radius:var(--r-pill);padding:1px 7px;font-size:10.5px;font-weight:600}.sidebar-admin-foot{border-top:1px solid rgba(240,232,210,.22);padding:11px 8px 2px;font-size:11px;color:var(--on-green-dim)}.sidebar-admin-foot .mono{font-family:var(--mono);font-size:10px;color:var(--on-green-faint)}.main{flex:1;min-width:0;background:var(--bg-parchment);display:flex;flex-direction:column;overflow:hidden}.screen{flex:1;overflow-y:auto;padding:26px 30px;display:flex;flex-direction:column;gap:16px}.screen-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.screen-title{font-family:var(--serif);font-size:23px;font-weight:600}.screen-sub{font-size:12px;color:var(--text-muted)}.head-actions{margin-left:auto;display:flex;gap:8px}.section{display:flex;flex-direction:column;gap:6px}.section-label{font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);font-weight:600}.hint{font-size:11.5px;color:var(--text-faint)}.footnote{font-size:12px;color:var(--text-muted)}.banner{border-radius:var(--r-field-sm);padding:9px 13px;font-size:12.5px;line-height:1.55}.banner-ok{background:var(--validated-bg);border:1px solid var(--validated-border);color:var(--validated-text)}.banner-alert{background:var(--alert-bg);border:1px solid var(--alert-border);color:var(--alert)}.banner-info{display:flex;align-items:center;gap:12px;background:var(--blue-info-bg);border:1px solid var(--blue-info-border);border-radius:var(--r-field);padding:11px 15px;color:var(--blue-info-text)}.banner-info .track{flex:1;height:6px;background:var(--blue-track);border-radius:3px;overflow:hidden}.banner-info .track>span{display:block;height:6px;background:var(--blue);border-radius:3px}.card{background:var(--bg-card);border:1.5px solid var(--border-soft);border-radius:var(--r-card)}.card-tile{background:var(--bg-card);border:1.5px solid var(--border-soft);border-radius:var(--r-tile);padding:12px 15px}.table>*:first-child{border-top-left-radius:var(--r-card);border-top-right-radius:var(--r-card)}.table>*:last-child{border-bottom-left-radius:var(--r-card);border-bottom-right-radius:var(--r-card)}.table-head,.table-row{display:grid;gap:10px;align-items:center}.table-head{padding:10px 16px;border-bottom:1.5px solid var(--border-soft);font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);font-weight:600}.table-row{padding:11px 16px;border-bottom:1px solid var(--rule)}.table-row:last-child{border-bottom:none}.chip-tag{background:var(--blue-tag-bg);border:1px solid var(--blue-tag-border);border-radius:var(--r-cite);padding:1px 7px;font-size:10.5px;color:var(--blue-dark)}.chip-pill{display:inline-flex;align-items:center;border-radius:var(--r-pill);padding:3px 12px;font-size:11px;font-weight:600;flex:none}.chip-pill.on{background:var(--validated-bg);border:1px solid var(--validated-border);color:var(--validated)}.chip-pill.off{background:var(--rule);border:1px solid var(--border);color:var(--text-muted)}.chip-pill.warn{background:var(--ocre-card-bg);border:1px solid var(--ocre-card-border);color:var(--ocre-dark)}.chip-pill.danger{background:var(--alert-bg);border:1px solid var(--alert-border);color:var(--alert)}.chip-version{background:var(--blue-tag-bg);border:1px solid var(--blue-tag-border);border-radius:var(--r-pill);padding:1px 9px;font-size:10.5px;font-weight:600;color:var(--blue-dark)}.chip-type{background:var(--ocre-card-bg);border:1px solid var(--ocre-card-border);border-radius:var(--r-pill);padding:1px 9px;font-size:10.5px;font-weight:600;color:var(--ocre-dark)}.chip-source{background:var(--ocre-chip-bg);border:1px solid var(--ocre-chip-border);border-radius:var(--r-cite);padding:2px 8px;font-size:10.5px;color:var(--ocre-dark)}.filter-pill{border:1.5px solid var(--border);border-radius:var(--r-pill);padding:3px 11px;font-size:11.5px;background:var(--bg-field)}.tab{border-radius:var(--r-pill);padding:4px 13px;font-size:12px;font-weight:600;background:var(--bg-field);border:1.5px solid var(--border);color:var(--text-secondary)}.tab.is-active{background:var(--green-deep);color:var(--on-green);border-color:var(--green-deep)}.dot{width:8px;height:8px;border-radius:var(--r-pill);flex:none}.dot.sm{width:7px;height:7px}.mono{font-family:var(--mono)}.bar-track{height:6px;background:var(--rule);border-radius:3px;overflow:hidden;display:block}.bar-track>span{display:block;height:6px;border-radius:3px}.btn-primary:disabled,.btn-secondary:disabled,.btn-sm:disabled{background:var(--disabled-bg);color:var(--disabled-text);border-color:var(--disabled-bg);box-shadow:none}.newchat{max-width:600px;margin:0 auto;padding:56px 28px 40px;display:flex;flex-direction:column;gap:18px}.newchat-title{font-family:var(--serif);font-size:27px;font-weight:600}.newchat-lede{font-size:13.5px;line-height:1.6;color:var(--text-secondary);margin-top:-8px}.posture-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.posture-card{padding:14px 16px;border-radius:var(--r-tile);background:var(--bg-field);border:1.5px solid var(--border-soft);display:block;width:100%}.posture-card.is-picked{box-shadow:var(--shadow-press-faint)}.posture-card-top{display:flex;align-items:center;gap:8px}.posture-card-check{flex:none}.posture-card-label{font-size:14px;font-weight:600}.posture-card-check{margin-left:auto;font-size:13px}.posture-card-desc{display:block;font-size:12px;line-height:1.5;margin-top:4px}.posture-card-mode{display:block;font-size:10.5px;margin-top:6px;opacity:.85}.composer-row{display:flex;gap:9px}.composer-input{flex:1;border:1.5px solid var(--border-strong);border-radius:var(--r-field);padding:12px 14px;font-size:14px;background:var(--bg-field);color:var(--text);outline:none}.btn-start{display:flex;align-items:center;background:var(--terracotta);color:var(--on-terracotta);border-radius:var(--r-field);padding:0 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#dfd2aa}.chat-head-title{font-family:var(--serif);font-size:16.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.posture-chip{flex:none;display:inline-flex;align-items:center;padding:3px 11px;border-radius:var(--r-pill);font-size:11.5px;font-weight:600}.chat-mode{margin-left:auto;font-size:11px;color:var(--text-faint);flex:none}.share-pill{flex:none;display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 12px;font-size:11.5px;font-weight:600;background:var(--bg-field);color:var(--validated);border:1.5px solid var(--validated-border)}.share-pill.is-on{background:var(--validated);color:var(--on-terracotta);border:1px solid var(--validated)}.messages{flex:1;min-height:0;overflow-y:auto;padding:22px 24px;display:flex;flex-direction:column;gap:15px}.msg-block{display:flex;flex-direction:column;gap:8px}.bubble-user{align-self:flex-end;max-width:68%;background:var(--bubble-user-bg);border:1px solid var(--bubble-user-border);border-radius:13px 13px 3px;padding:10px 14px;font-size:14px;line-height:1.55;color:var(--bubble-user-text)}.bubble-bot{align-self:flex-start;max-width:86%;background:var(--bg-card);border:1.5px solid #dfd2aa;border-radius:3px 13px 13px;padding:13px 16px;display:flex;flex-direction:column;gap:9px;animation:rise .35s ease}.bubble-wait{align-self:flex-start;max-width:86%;background:var(--bg-highlight);border:1.5px dashed var(--ocre-chip-border);border-radius:3px 13px 13px;padding:13px 16px;display:flex;flex-direction:column;gap:9px}.wait-head{display:flex;align-items:center;gap:8px}.wait-hourglass{animation:pulse 1.4s ease infinite}.wait-title{font-size:12.5px;font-weight:600;color:var(--ocre-dark)}.wait-lede{font-size:12px;color:var(--text-secondary)}.trail{font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--ocre-dark);font-weight:600}.excerpt{background:var(--bg-field);border:1px solid var(--ocre-card-border);border-radius:var(--r-field-sm);padding:11px 13px;font-family:var(--serif);font-size:13.5px;line-height:1.7;color:var(--text-serif)}.badge-validated{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;background:var(--validated-bg);border:1px solid var(--validated-border);border-radius:var(--r-pill);padding:2px 10px;font-size:11px;font-weight:600;color:var(--validated)}.bot-text{font-size:14px;line-height:1.75}.cite{display:inline-flex;align-items:center;justify-content:center;min-width:17px;height:17px;padding:0 5px;margin:0 3px;border-radius:var(--r-cite);font-size:11px;font-weight:600;vertical-align:1px;background:var(--ocre-chip-bg);border:1px solid var(--ocre-chip-border);color:var(--ocre-dark)}.cite.is-open{background:var(--ocre-dark);border-color:var(--ocre-dark);color:var(--on-terracotta)}.limited{font-size:11px;color:var(--text-faint)}.feedback{display:flex;flex-direction:column;gap:5px;border-top:1px solid var(--rule);padding-top:8px}.mark-pill{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 12px;font-size:11.5px;font-weight:600;background:var(--bg-field);color:var(--validated);border:1.5px solid var(--validated-border)}.mark-pill.is-on{background:var(--validated);color:var(--on-terracotta);border:1px solid var(--validated)}.mark-hint{font-size:11px;line-height:1.5;color:var(--text-faint)}.related{align-self:flex-start;max-width:80%;margin-left:18px;background:var(--validated-bg);border:1.5px solid var(--validated-border);border-radius:var(--r-tile);padding:11px 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28px}.etu-id{font-family:var(--mono);font-size:12.5px;font-weight:600}.etu-usage{display:flex;align-items:center;gap:10px}.etu-usage .bar-track{flex:1;max-width:220px}.etu-usage-label{font-family:var(--mono);font-size:11px;color:var(--text-secondary)}.etu-cohorte{font-size:12px;color:var(--text-secondary)}.key-card{background:var(--bg-card);border:1.5px solid var(--border-soft);border-radius:var(--r-card);padding:14px 17px;display:flex;flex-direction:column;gap:8px}.key-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.key-label{font-size:13.5px;font-weight:600}.key-hint{font-size:11px;color:var(--text-muted)}.key-status{margin-left:auto;border-radius:var(--r-pill);padding:2px 10px;font-size:10.5px;font-weight:600}.key-status.on{background:var(--validated-bg);border:1px solid var(--validated-border);color:var(--validated)}.key-status.off{background:var(--rule);border:1px solid var(--border);color:var(--text-muted)}.key-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.key-input{flex:1;min-width:180px;border:1.5px solid var(--border);border-radius:var(--r-field-sm);padding:10px 12px;font-family:var(--mono);font-size:12.5px;background:var(--bg-field);color:var(--text);outline:none}.key-btn{border:1.5px solid var(--border-brass);border-radius:var(--r-btn-sm);padding:8px 11px;font-size:12px;background:var(--bg-field);-webkit-user-select:none;user-select:none}.key-btn.wide{padding:8px 12px;font-size:11.5px;font-weight:500}.key-model{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.key-model span{font-size:11px;color:var(--text-muted)}.key-model input{border:1.5px solid var(--border-soft);border-radius:7px;padding:5px 9px;font-family:var(--mono);font-size:11.5px;background:var(--bg-field);color:var(--text);outline:none;width:240px}.test-result{font-size:11.5px;font-weight:600}.test-result.ok{color:var(--validated)}.test-result.ko{color:var(--alert)}.test-result.pending{color:var(--text-muted)}.account-card{background:var(--bg-card);border:1.5px solid var(--border-soft);border-radius:var(--r-card);padding:14px 17px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.account-email{font-size:13.5px;font-weight:600}.account-sub{font-size:11.5px;color:var(--text-muted);margin-top:2px}.account-actions{margin-left:auto;display:flex;gap:8px}.filter-pill{display:inline-flex;align-items:center;gap:4px;color:var(--text-secondary)}.filter-pill select{border:none;outline:none;background:transparent;font-size:11.5px;font-family:var(--sans);color:var(--text);cursor:pointer}