:root{--bg:#f5f6f8;--card:#fff;--text:#17191d;--muted:#697180;--line:#e1e5ea;--accent:#17191d;--soft:#eef1f4;--ok:#e6f5ea;--warn:#fff4dd;--danger:#fee9e9}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.52 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}.topbar{height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:20}.brand{font-size:18px;color:inherit;text-decoration:none}.userbar{display:flex;align-items:center;gap:14px}.layout{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:calc(100vh - 64px)}.sidebar{background:#fff;border-right:1px solid var(--line);padding:24px 14px;display:flex;flex-direction:column;gap:4px}.sidebar a{color:#313640;text-decoration:none;padding:9px 12px;border-radius:9px}.sidebar a:hover{background:var(--soft)}.nav-label{font-size:11px;font-weight:800;letter-spacing:.12em;color:#89919d;padding:20px 12px 5px}.container{width:100%;max-width:1240px;margin:0 auto;padding:34px 28px 70px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 7px 25px rgba(20,25,35,.04)}.pad{padding:24px}.login-card{max-width:500px;margin:8vh auto;padding:36px}.hero,.module-head{display:flex;justify-content:space-between;align-items:flex-start;gap:22px;margin-bottom:26px}.eyebrow{font-size:11px;font-weight:850;letter-spacing:.13em;color:#7b8491;margin:0 0 7px}h1{font-size:33px;line-height:1.12;margin:0 0 10px}h2{font-size:21px;margin:0 0 14px}h3{font-size:17px;margin:10px 0 7px}.muted{color:var(--muted)}.section-space{margin-top:28px}.section-title,.row-between{display:flex;align-items:center;justify-content:space-between;gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.metric{padding:20px}.metric span{display:block;color:var(--muted);font-size:13px}.metric strong{font-size:32px}.time-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:15px}.time-card{padding:18px;border:1px solid var(--line);background:#fff;border-radius:12px;color:inherit;text-decoration:none;font-weight:750;text-align:center}.time-card:hover,.module-card:hover{box-shadow:0 10px 28px rgba(20,25,35,.08);transform:translateY(-1px)}.module-card{display:block;padding:22px;color:inherit;text-decoration:none;transition:.12s}.tag,.badge,.status-pill{display:inline-block;background:var(--soft);border-radius:999px;padding:5px 9px;font-size:12px;font-weight:750}.badge.ok,.status-pill.active{background:var(--ok)}.status-pill.idle{background:var(--warn)}.status-pill.hidden{background:var(--soft)}.progress-wrap{height:9px;background:#eaedf1;border-radius:999px;overflow:hidden;margin:15px 0 7px}.progress-bar{height:100%;background:var(--accent);transition:width .2s}.stack{display:grid;gap:14px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.span-2{grid-column:span 2}.search-grid{display:grid;grid-template-columns:minmax(300px,2fr) 1fr 1fr auto;gap:12px;align-items:end}label{display:grid;gap:6px;font-weight:650}.label{font-weight:650}input,textarea,select{width:100%;padding:11px 12px;border:1px solid #cfd5dc;border-radius:9px;background:#fff;color:inherit;font:inherit}textarea{resize:vertical}.primary,.secondary,.ghost,.danger,.linkbtn{font:inherit;font-weight:750;border-radius:9px;cursor:pointer;text-decoration:none}.primary{background:var(--accent);color:#fff;border:0;padding:11px 16px}.secondary{display:inline-block;background:#fff;color:var(--text);border:1px solid #cbd2da;padding:10px 14px}.ghost,.linkbtn{background:#fff;color:var(--text);border:1px solid #d5dae0;padding:7px 10px}.danger{background:var(--danger);border:1px solid #f0c8c8;color:#8a2828;padding:7px 10px}.inline-form{display:flex;gap:8px;align-items:center;margin-top:10px}.inline-form input,.inline-form select{width:auto;min-width:180px}.checks{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.option{display:flex;align-items:center;gap:8px;font-weight:500;padding:8px 10px;border:1px solid var(--line);border-radius:9px}.option input{width:auto}.alert{padding:11px 13px;border-radius:9px;margin:10px 0}.alert.error{background:var(--danger)}.alert.ok{background:var(--ok)}.alert.warn{background:var(--warn)}.error-text{color:#a72f2f;font-size:12px;max-width:260px;white-space:normal}.module-body{padding:30px}.module-body p{font-size:16.5px;max-width:900px;white-space:pre-wrap}.sources{margin-top:24px;padding:14px;background:var(--soft);border-radius:10px}.privacy-note{margin-top:12px;color:var(--muted);font-size:12px}.list{display:grid;gap:10px}.list-row{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;color:inherit;text-decoration:none}.table-card{padding:20px}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:10px 9px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:#707986;white-space:nowrap}.actions{display:flex;gap:6px;align-items:center}.empty{padding:22px;border:1px dashed #ccd3db;border-radius:12px;color:var(--muted);background:#fafbfc}.answer{font-size:17px;max-width:950px}fieldset{border:1px solid var(--line);border-radius:12px;padding:14px}legend{font-weight:750;padding:0 5px}hr{border:0;border-top:1px solid var(--line);margin:22px 0}
@media(max-width:950px){.layout{grid-template-columns:1fr}.sidebar{display:none}.metric-grid,.time-grid{grid-template-columns:repeat(2,1fr)}.search-grid{grid-template-columns:1fr 1fr}.search-grid label:first-child{grid-column:span 2}}
@media(max-width:680px){.container{padding:24px 15px 55px}.topbar{padding:0 14px}.grid-2,.metric-grid,.time-grid,.form-grid,.search-grid{grid-template-columns:1fr}.span-2,.search-grid label:first-child{grid-column:span 1}.hero,.module-head{flex-direction:column}h1{font-size:27px}.inline-form{align-items:stretch;flex-direction:column}.inline-form input,.inline-form select{width:100%}}
.source-image{display:block;max-width:min(720px,100%);max-height:520px;object-fit:contain;margin:12px 0;border:1px solid var(--line);border-radius:10px}.mini-details{margin-top:10px}.mini-details summary{cursor:pointer;font-weight:700;color:var(--muted)}.mini-details form{margin-top:10px;min-width:260px}.assignment-list{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
/* Release 1.2 UX */
.filter-grid{display:grid;grid-template-columns:minmax(240px,2fr) repeat(3,minmax(150px,1fr)) auto;gap:12px;align-items:end}.focus-card{border-width:2px}.quick-ask{display:flex;gap:10px}.quick-ask input{flex:1}.primary-link{display:inline-block;background:var(--accent);color:#fff!important;border:0;padding:11px 16px}.state-overdue{background:#fee9e9;color:#8a2828}.state-completed{background:var(--ok)}.state-in_progress{background:#e9f0ff}.review-card{border-style:dashed}.tiny-tag{font-size:10px;background:var(--soft);padding:2px 5px;border-radius:999px;color:var(--muted)}.version-strip{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.version-chip{padding:7px 10px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:inherit}.version-chip.current{background:var(--accent);color:#fff}.readonly-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.readonly-grid small{display:block;color:var(--muted)}.module-preview-text{max-width:950px}.module-preview-text p{white-space:pre-wrap}.quiz-admin{border:1px solid var(--line);border-radius:10px;padding:12px;margin:9px 0}.quiz-explain{margin-top:7px;font-style:italic}.admin-assets{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}.admin-assets>div{width:150px;border:1px solid var(--line);padding:8px;border-radius:10px}.admin-assets img{width:100%;height:110px;object-fit:contain}.module-gallery{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px}.module-gallery figure{margin:0;max-width:320px}.module-gallery img{max-width:100%;max-height:300px;object-fit:contain;border:1px solid var(--line);border-radius:12px;background:#fff}.module-gallery figcaption{font-size:12px;color:var(--muted);margin-top:5px}.source-picker{max-height:320px;overflow:auto;border:1px solid var(--line);padding:8px;border-radius:10px}.source-picker .option{margin:4px 0}.source-picker small{display:block;color:var(--muted)}.mini-metrics{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.mini-metrics span{background:var(--soft);padding:6px 9px;border-radius:999px;font-size:12px}.system-list{display:grid;gap:8px;margin:12px 0}.system-list>div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:6px 0}.danger-zone{border-color:#efcaca}.user-admin-actions{margin-top:14px}.error{background:var(--danger)}
@media(max-width:950px){.filter-grid{grid-template-columns:1fr 1fr}.filter-grid label:first-child{grid-column:span 2}}
@media(max-width:680px){.filter-grid,.readonly-grid{grid-template-columns:1fr}.filter-grid label:first-child{grid-column:span 1}.quick-ask{flex-direction:column}.user-admin-actions{align-items:stretch;flex-direction:column}}
/* Release 1.3 AI Router */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.ai-profile-card{box-shadow:none}.ai-profile-card.selected{border:2px solid var(--accent)}.ai-profile-grid form{margin:0}.ai-profile-grid p{min-height:48px}
@media(max-width:950px){.grid-3{grid-template-columns:1fr}}

/* Release 1.6.1 — UI Rationalization */
body{font-size:14px;line-height:1.48}.topbar{height:60px;padding:0 22px}.brand{font-size:17px}.layout{grid-template-columns:210px minmax(0,1fr);min-height:calc(100vh - 60px)}.sidebar{padding:18px 11px 12px;min-height:calc(100vh - 60px)}.sidebar-nav{display:flex;flex-direction:column;gap:2px}.sidebar a{padding:8px 10px;border-radius:8px}.nav-label{font-size:10px;padding:16px 10px 4px}.release-footer{margin-top:auto;border-top:1px solid var(--line);padding:12px 10px 2px;color:var(--muted);font-size:10px;line-height:1.35}.release-footer span,.release-footer strong{display:block}.release-footer strong{color:var(--text);font-size:11px;margin-top:2px}.container{max-width:1480px;padding:28px 24px 60px}.pad{padding:20px}.hero,.module-head{margin-bottom:20px}.compact-hero{margin-bottom:16px}.eyebrow{font-size:10px;margin-bottom:5px}h1{font-size:30px;margin-bottom:8px}h2{font-size:19px;margin-bottom:11px}h3{font-size:16px}.section-space{margin-top:22px}.metric strong{font-size:28px}.module-body p{font-size:15.5px}.answer{font-size:16px}.table-card{padding:16px}th,td{padding:8px 8px}.no-margin{margin:0}.compact-card{padding:18px 20px}
.qa-metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.qa-metric-card{padding:15px 17px;text-decoration:none;color:inherit;min-height:102px;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto 1fr;align-items:start}.qa-metric-card span{font-weight:750}.qa-metric-card strong{font-size:27px;line-height:1;grid-row:1/3;grid-column:2;margin-left:12px}.qa-metric-card small{color:var(--muted);align-self:end}
.document-list{display:grid;gap:10px}.document-row{padding:14px;display:grid;grid-template-columns:minmax(190px,1.3fr) minmax(160px,.9fr) minmax(190px,1.05fr) minmax(210px,1.25fr) minmax(105px,.55fr) 142px;gap:0;align-items:stretch;overflow:visible}.doc-cell{padding:3px 14px;border-right:1px solid var(--line);min-width:0}.doc-main{padding-left:2px}.doc-cell strong{display:block}.doc-label{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:#727b88;font-weight:800;margin-bottom:7px}.doc-sub{overflow-wrap:anywhere;margin-top:3px;font-size:12px}.doc-status-line{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-top:10px;font-size:11px;color:var(--muted)}.compact-dl{display:grid;grid-template-columns:58px minmax(0,1fr);gap:2px 7px;margin:0;font-size:12px}.compact-dl dt{color:var(--muted)}.compact-dl dd{margin:0;font-weight:650;overflow-wrap:anywhere}.policy-flags,.rag-facts{display:flex;flex-wrap:wrap;gap:4px 7px;margin-top:7px}.policy-flags span,.rag-facts span{font-size:10px;background:var(--soft);padding:3px 5px;border-radius:6px}.doc-embed strong{font-size:23px}.doc-embed .muted{display:block;font-size:11px}.doc-actions{padding:3px 0 3px 13px;display:flex;flex-direction:column;gap:6px}.doc-actions form{display:grid;gap:5px;margin:0}.doc-actions select,.doc-actions button,.doc-actions a{width:100%;min-width:0;font-size:11px;padding:7px 8px;text-align:center}.doc-actions .danger{padding:7px 8px}.compact-form{margin-top:8px;min-width:260px}.mini-details summary{font-size:11px}.mini-details p{font-size:12px;margin:6px 0}.filter-grid{grid-template-columns:minmax(220px,2fr) repeat(3,minmax(130px,1fr)) auto}
@media(max-width:1220px){.document-row{grid-template-columns:minmax(180px,1.2fr) minmax(150px,.9fr) minmax(180px,1fr) minmax(190px,1.1fr) 120px}.doc-actions{grid-column:1/-1;border-top:1px solid var(--line);padding:10px 0 0;display:grid;grid-template-columns:repeat(4,minmax(120px,1fr))}.doc-actions .doc-label{grid-column:1/-1}.doc-cell:nth-child(5){border-right:0}.qa-metric-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:950px){.container{padding:24px 18px 55px}.qa-metric-grid{grid-template-columns:repeat(2,1fr)}.document-row{grid-template-columns:repeat(2,minmax(0,1fr))}.doc-cell{border-right:0;border-bottom:1px solid var(--line);padding:10px}.doc-actions{grid-column:1/-1;grid-template-columns:repeat(2,minmax(0,1fr));padding:10px}.doc-actions .doc-label{grid-column:1/-1}}
@media(max-width:680px){h1{font-size:26px}.qa-metric-grid,.document-row{grid-template-columns:1fr}.doc-actions{grid-template-columns:1fr}.doc-actions,.doc-actions .doc-label{grid-column:1}.container{padding:20px 14px 50px}}

/* Release 1.6.3 — Biblioteca tecnica */
.library-filter-grid{display:grid;grid-template-columns:minmax(260px,2fr) repeat(3,minmax(150px,1fr)) auto;gap:12px;align-items:end}.library-groups{display:grid;gap:26px}.library-company{display:grid;gap:12px}.library-company-head{display:flex;justify-content:space-between;align-items:end;gap:16px}.library-company-head h2{margin:0}.library-doc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.library-doc-card{display:block;padding:17px 18px;color:inherit;text-decoration:none;transition:.12s;min-height:190px}.library-doc-card:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(20,25,35,.08)}.library-doc-card h3{margin:13px 0 4px}.doc-type-badge{display:inline-block;font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;background:var(--soft);padding:4px 7px;border-radius:999px}.library-summary{font-size:12.5px;line-height:1.45;margin:12px 0;color:#3f4650}.library-meta{display:flex;flex-wrap:wrap;gap:5px;margin-top:14px}.library-meta span{font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 6px}.library-detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:16px;align-items:start}.library-preview-card{overflow:hidden;min-height:72vh}.pdf-preview{display:block;width:100%;height:78vh;border:0;background:#f0f2f4}.image-preview-wrap{display:flex;justify-content:center;padding:22px}.text-source-preview{margin:0;padding:22px;white-space:pre-wrap;word-break:break-word;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;max-height:78vh;overflow:auto}.library-side-panel{position:sticky;top:80px}.library-dl{display:grid;grid-template-columns:110px minmax(0,1fr);gap:8px 10px;margin:0}.library-dl dt{font-size:11px;color:var(--muted)}.library-dl dd{margin:0;font-size:12.5px;font-weight:650;overflow-wrap:anywhere}.library-line-link{display:block;text-align:center;margin-top:18px}.library-related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.library-related-card{display:grid;gap:5px;padding:14px 16px;color:inherit;text-decoration:none}.library-access-details{border:1px solid var(--line);border-radius:8px;padding:6px 8px}.library-access-details summary{font-size:11px}.library-access-details label{display:flex;grid-template-columns:auto 1fr;align-items:center;gap:7px;font-size:11px;font-weight:600}.library-access-details input[type=checkbox]{width:auto}
@media(max-width:1100px){.library-doc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-detail-grid{grid-template-columns:1fr}.library-side-panel{position:static}.library-related{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:950px){.library-filter-grid{grid-template-columns:1fr 1fr}.library-filter-grid label:first-child{grid-column:span 2}}
@media(max-width:680px){.library-filter-grid,.library-doc-grid,.library-related{grid-template-columns:1fr}.library-filter-grid label:first-child{grid-column:span 1}.pdf-preview{height:68vh}.library-company-head{align-items:flex-start;flex-direction:column}.library-dl{grid-template-columns:1fr}.library-dl dt{margin-top:4px}.library-preview-card{min-height:auto}}

/* 1.6.4 source visibility + source-kind UX */
.source-kind-line{margin:0 0 7px}.source-kind{display:inline-flex;align-items:center;gap:4px;font-size:9.5px;font-weight:800;text-transform:uppercase;letter-spacing:.055em;padding:4px 7px;border-radius:999px;border:1px solid var(--line);background:#f7f8fa;color:#39404a}.source-kind-pdf{background:#fff2f1;color:#8b2f2a;border-color:#f2d0cd}.source-kind-web{background:#eef6ff;color:#235b91;border-color:#cfe2f7}.source-kind-manual,.source-kind-text{background:#f2f0ff;color:#54438f;border-color:#dad4f3}.source-kind-transcript{background:#eef8f1;color:#2f6c42;border-color:#d1ead9}.source-kind-procedure{background:#fff7e9;color:#815b17;border-color:#f1dfb8}.source-kind-notes{background:#fffbe8;color:#746316;border-color:#eee4ad}.source-kind-image{background:#f7effa;color:#70427d;border-color:#e4d3ea}.source-badge-stack{display:flex;flex-wrap:wrap;gap:5px;align-items:center}.library-master-note{display:block;font-size:9.5px;color:var(--muted);line-height:1.25;margin:-2px 0 3px}.filter-grid{grid-template-columns:minmax(190px,1.7fr) repeat(4,minmax(115px,.85fr)) auto}.library-filter-grid{grid-template-columns:minmax(210px,1.8fr) repeat(4,minmax(120px,.85fr)) auto}.library-doc-card .source-kind{font-size:9px}
@media(max-width:1200px){.filter-grid,.library-filter-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.filter-grid button,.library-filter-grid button{align-self:end}}

/* Release 1.6.5 — Gestione utenti */
.user-card-head{align-items:flex-start}.password-required{background:var(--warn);color:#76520f}.user-actions-grid{display:grid;grid-template-columns:minmax(430px,1fr) auto auto;gap:10px;align-items:end}.reset-password-form{display:grid;grid-template-columns:minmax(190px,1fr) minmax(220px,auto) auto;gap:8px;align-items:center}.reset-password-form input{min-width:0}.compact-option{padding:7px 9px;font-size:11px}.delete-user-form,.user-actions-grid>form{margin:0}.user-card hr{margin:16px 0}
@media(max-width:1050px){.user-actions-grid{grid-template-columns:1fr 1fr}.reset-password-form{grid-column:1/-1}.user-actions-grid button{width:100%}}
@media(max-width:680px){.user-actions-grid,.reset-password-form{grid-template-columns:1fr}.user-card-head{align-items:flex-start;flex-direction:column}}

/* Release 1.6.6 — Secure web-source import */
.web-source-summary{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}.compact-note{margin:0;padding:9px 10px;background:var(--soft);border-radius:8px}.compact-list{margin:6px 0 0;padding-left:18px;font-size:12px}.compact-list li{margin:3px 0}