/* ResearchBook Web 3.0 — user Workstation centre */
.rb-user-ws-menu-entry{cursor:pointer;box-sizing:border-box;max-width:100%;white-space:normal;line-height:1.35;text-align:left;overflow-wrap:anywhere}
.rb-user-ws-overlay{position:fixed;inset:0;width:100vw;max-width:none;height:100dvh;max-height:none;margin:0;border:0;padding:24px;box-sizing:border-box;background:transparent;color:inherit;overflow:hidden}.rb-user-ws-overlay[open]{display:flex;align-items:center;justify-content:center}.rb-user-ws-overlay::backdrop{background:rgba(15,23,42,.34);backdrop-filter:blur(10px)}.rb-user-ws-overlay.rb-user-ws-dialog-fallback{z-index:2147482500;background:rgba(15,23,42,.34);backdrop-filter:blur(10px)}
.rb-user-ws-shell{width:min(1040px,100%);max-height:min(860px,calc(100dvh - 32px));overflow:hidden;display:flex;flex-direction:column;background:var(--rb-surface,#fff);color:var(--rb-text,#172033);border:1px solid var(--rb-border,rgba(15,23,42,.12));border-radius:24px;box-shadow:0 24px 80px rgba(15,23,42,.25)}
.rb-user-ws-head{display:flex;align-items:flex-start;gap:16px;padding:22px 24px 16px;border-bottom:1px solid var(--rb-border,rgba(15,23,42,.1))}.rb-user-ws-head h2{margin:0;font-size:22px}.rb-user-ws-sub{margin-top:5px;font-size:13px;opacity:.68}.rb-user-ws-close{margin-left:auto;border:0;background:transparent;color:inherit;font-size:26px;line-height:1;padding:4px 8px;border-radius:10px;cursor:pointer}.rb-user-ws-close:hover{background:rgba(127,127,127,.12)}
.rb-user-ws-tabs{display:flex;gap:6px;padding:12px 20px;border-bottom:1px solid var(--rb-border,rgba(15,23,42,.1));overflow:auto}.rb-user-ws-tab{border:0;background:transparent;color:inherit;border-radius:10px;padding:9px 13px;white-space:nowrap;cursor:pointer;font-weight:650}.rb-user-ws-tab[aria-selected="true"]{background:var(--rb-accent-soft,rgba(37,99,235,.10));color:var(--rb-accent,#245bdb)}
.rb-user-ws-body{overflow:auto;padding:20px 24px 28px;overscroll-behavior:contain}.rb-user-ws-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.rb-user-ws-card{border:1px solid var(--rb-border,rgba(15,23,42,.11));background:var(--rb-surface-2,rgba(127,127,127,.035));border-radius:16px;padding:16px}.rb-user-ws-card.wide{grid-column:1/-1}.rb-user-ws-card h3{font-size:15px;margin:0 0 10px}.rb-user-ws-muted{font-size:12.5px;opacity:.66;line-height:1.5}.rb-user-ws-kv{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:7px 14px;font-size:13px}.rb-user-ws-kv b{opacity:.7}.rb-user-ws-code{font:700 clamp(20px,4vw,32px)/1.25 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.08em;padding:16px;border-radius:14px;background:rgba(127,127,127,.10);text-align:center;user-select:all;margin:12px 0}.rb-user-ws-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.rb-user-ws-spacer{flex:1}.rb-user-ws-button{appearance:none;border:1px solid var(--rb-border,rgba(15,23,42,.15));background:var(--rb-surface,#fff);color:inherit;border-radius:10px;padding:9px 12px;font:inherit;font-weight:650;cursor:pointer}.rb-user-ws-button:hover{filter:brightness(.98)}.rb-user-ws-button.primary{background:var(--rb-accent,#245bdb);border-color:var(--rb-accent,#245bdb);color:#fff}.rb-user-ws-button.danger{color:#b42318;border-color:rgba(180,35,24,.28)}.rb-user-ws-button:disabled{opacity:.45;cursor:not-allowed}.rb-user-ws-field{display:grid;gap:6px;font-size:12px;font-weight:650}.rb-user-ws-input,.rb-user-ws-select{box-sizing:border-box;width:100%;border:1px solid var(--rb-border,rgba(15,23,42,.15));background:var(--rb-surface,#fff);color:inherit;border-radius:10px;padding:9px 10px;font:inherit;min-height:39px}.rb-user-ws-formrow{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px;align-items:end}.rb-user-ws-device{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:14px}.rb-user-ws-device+.rb-user-ws-device{margin-top:12px;padding-top:14px;border-top:1px solid var(--rb-border,rgba(15,23,42,.09))}.rb-user-ws-badges{display:flex;gap:6px;flex-wrap:wrap;margin:7px 0}.rb-user-ws-badge{display:inline-flex;align-items:center;border-radius:999px;padding:4px 8px;background:rgba(127,127,127,.1);font-size:11.5px}.rb-user-ws-badge.ok{color:#067647;background:rgba(6,118,71,.1)}.rb-user-ws-badge.bad{color:#b42318;background:rgba(180,35,24,.1)}.rb-user-ws-list{display:grid;gap:8px}.rb-user-ws-listitem{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--rb-border,rgba(15,23,42,.08));font-size:13px}.rb-user-ws-listitem:last-child{border-bottom:0}.rb-user-ws-empty{padding:30px 12px;text-align:center;opacity:.62}.rb-user-ws-toast{position:fixed;z-index:2147482600;left:50%;bottom:30px;transform:translateX(-50%);background:#172033;color:#fff;border-radius:12px;padding:10px 14px;box-shadow:0 10px 30px rgba(15,23,42,.25);font-size:13px;max-width:min(560px,calc(100vw - 32px))}.rb-user-ws-alert{padding:11px 12px;border-radius:12px;background:rgba(37,99,235,.08);font-size:13px;line-height:1.5;margin-bottom:14px}.rb-user-ws-alert.error{background:rgba(180,35,24,.09);color:#b42318}
@media(max-width:720px){.rb-user-ws-overlay{padding:0}.rb-user-ws-overlay[open]{align-items:flex-end}.rb-user-ws-shell{border-radius:22px 22px 0 0;max-height:94dvh;width:100%}.rb-user-ws-head{padding:18px 18px 13px}.rb-user-ws-tabs{padding:10px 14px}.rb-user-ws-body{padding:16px 16px calc(22px + env(safe-area-inset-bottom))}.rb-user-ws-grid{grid-template-columns:1fr}.rb-user-ws-card.wide{grid-column:auto}.rb-user-ws-formrow{grid-template-columns:1fr}.rb-user-ws-device{grid-template-columns:1fr}.rb-user-ws-code{font-size:23px}}
@media(prefers-reduced-motion:reduce){.rb-user-ws-overlay::backdrop,.rb-user-ws-overlay.rb-user-ws-dialog-fallback{backdrop-filter:none}}
/* FINAL4.16 Workstation installer/download centre */
.rb-user-ws-downloads{display:grid;gap:14px}.rb-user-ws-download-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:14px}.rb-user-ws-download-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-content:start;border:1px solid var(--rb-border,rgba(15,23,42,.11));background:var(--rb-surface-2,rgba(127,127,127,.035));border-radius:16px;padding:16px;min-width:0}.rb-user-ws-download-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:var(--rb-accent-soft,rgba(37,99,235,.10));color:var(--rb-accent,#245bdb);font-size:22px;font-weight:800}.rb-user-ws-download-main{min-width:0}.rb-user-ws-download-main h3{margin:0 0 8px;font-size:15px}.rb-user-ws-download-action{grid-column:1/-1;display:flex;justify-content:flex-end;margin-top:2px}.rb-user-ws-download-action a{text-decoration:none}.rb-user-ws-hash{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;overflow-wrap:anywhere;word-break:break-all}.rb-user-ws-enroll-callout{background:linear-gradient(135deg,var(--rb-surface-2,rgba(127,127,127,.035)),var(--rb-accent-soft,rgba(37,99,235,.07)))}.rb-user-ws-guide h4{margin:2px 0 8px;font-size:13px}.rb-user-ws-guide ul,.rb-user-ws-guide ol{margin:0;padding-left:22px;font-size:13px;line-height:1.65}.rb-user-ws-guide-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:18px;margin:10px 0 14px}.rb-user-ws-guide-placeholders{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media(max-width:900px){.rb-user-ws-download-grid{grid-template-columns:1fr}.rb-user-ws-guide-grid,.rb-user-ws-guide-placeholders{grid-template-columns:1fr}}

/* ResearchBook Web 3.0: Teacher/Student download entry stays readable in narrow role menus. */
@media(max-width:1100px){.rb-user-ws-download-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}}
@media(max-width:620px){.rb-user-ws-menu-entry{width:100%;min-height:42px}.rb-user-ws-download-card{grid-template-columns:40px minmax(0,1fr);padding:14px}.rb-user-ws-download-action{justify-content:stretch}.rb-user-ws-download-action .rb-user-ws-button,.rb-user-ws-download-action a{width:100%;text-align:center}}

/* ResearchBook Web 3.0 same-version menu repair: one readable download entry only. */
.rb-user-ws-menu-entry{box-sizing:border-box!important;display:flex!important;align-items:center!important;width:100%!important;max-width:none!important;min-width:0!important;flex:0 0 auto!important;white-space:nowrap!important;word-break:keep-all!important;overflow-wrap:normal!important;writing-mode:horizontal-tb!important;text-orientation:mixed!important}

/* ResearchBook Web 3.0 same-version final menu layout repair. */
.rb-user-ws-menu-entry{white-space:nowrap!important;word-break:normal!important;overflow-wrap:normal!important;writing-mode:horizontal-tb!important;text-orientation:mixed!important;overflow:hidden!important;text-overflow:ellipsis!important;max-inline-size:100%!important}

/* ResearchBook Web 3.0: independent utility downloads */
.rb-user-ws-tools{margin-top:14px}
.rb-user-ws-tool-list{display:grid;gap:10px;margin-top:14px}
.rb-user-ws-tool{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid var(--rb-user-ws-border,rgba(127,127,127,.24));border-radius:14px;background:rgba(127,127,127,.055)}
.rb-user-ws-tool-main{min-width:0;flex:1}
.rb-user-ws-tool-desc{margin-top:5px;white-space:pre-wrap;overflow-wrap:anywhere}
.rb-user-ws-tool-meta{display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:7px;font-size:.82rem;opacity:.72;min-width:0}
.rb-user-ws-tool-meta span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(64vw,620px)}
.rb-user-ws-tool-download{flex:0 0 auto;text-decoration:none!important;white-space:nowrap!important}
@media (max-width:680px){.rb-user-ws-tool{align-items:stretch;flex-direction:column}.rb-user-ws-tool-download{align-self:flex-start}.rb-user-ws-tool-meta span:first-child{max-width:78vw}}