:root{--bg: #f7f2e9;--bg-accent: #efe4d2;--panel: #fffaf2;--panel-strong: #ffffff;--text: #2a241d;--muted: #6f6457;--primary: #845e3c;--primary-contrast: #fff7ec;--accent: #c99a6b;--success: #d7ead5;--danger: #f3d2cf;--info: #e9f1ff;--card-shadow: 0 12px 32px rgba(45, 36, 22, .08);--msg-panel-border: rgba(73, 54, 34, .14);--msg-panel-shadow: 0 18px 38px rgba(57, 42, 26, .16);--msg-panel-surface: #fff7ee;--msg-panel-inner: #fffdf9;--msg-panel-caret: #fff7ee;--app-frame-width: min(1180px, 100%);--header-control-size: 42px;--header-icon-size: 18px;font-family:Cormorant Garamond,Iowan Old Style,Times New Roman,serif;line-height:1.5;font-weight:400;color-scheme:light;color:var(--text);background-color:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[data-theme=dark]{--bg: #1b1814;--bg-accent: #27211b;--panel: #231f1a;--panel-strong: #2a251f;--text: #f4ede4;--muted: #c0b4a5;--primary: #e6d4bf;--primary-contrast: #1b1814;--accent: #d1a97b;--success: #2f4a3a;--danger: #5b2a2a;--info: #2a3446;--card-shadow: 0 16px 32px rgba(0,0,0,.4);--msg-panel-border: rgba(255, 255, 255, .08);--msg-panel-shadow: 0 18px 38px rgba(0,0,0,.5);--msg-panel-surface: #26211b;--msg-panel-inner: #1d1915;--msg-panel-caret: #26211b}[data-theme=dark] .card{border:1px solid rgba(255,255,255,.06)}[data-theme=dark] .input,[data-theme=dark] .select{background:#1d1915;border-color:#ffffff1a;color:var(--text)}[data-theme=dark] .input:focus,[data-theme=dark] .select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #d1a97b2e}[data-theme=dark] .input::placeholder{color:#7a6f63}[data-theme=dark] .card-list li,[data-theme=dark] .instructions{background:#1d1915;border-color:#ffffff14}[data-theme=dark] .btn-primary{background:#c99a6b;color:#1b1814}[data-theme=dark] .btn-primary:hover{background:#d4a87a}[data-theme=dark] .btn-ghost{background:#ffffff0f;border:1px solid rgba(255,255,255,.08)}[data-theme=dark] .btn-ghost:hover{background:#ffffff1a}[data-theme=dark] .login-brand-side{background:radial-gradient(420px 320px at 115% -10%,color-mix(in srgb,var(--accent) 28%,transparent),transparent 70%),linear-gradient(150deg,#2f2519,#221b14);color:var(--text);border-left:1px solid rgba(255,255,255,.06)}[data-theme=dark] .login-brand-name{color:var(--accent)}[data-theme=dark] .login-feature-dot{background:var(--accent)}[data-theme=dark] .admin-sidebar{border-right-color:#ffffff0f;box-shadow:2px 0 25px #0000004d}[data-theme=dark] .sidebar-nav-btn:hover:not(.active){background:#ffffff0f;border-left-color:var(--accent)}[data-theme=dark] .sidebar-bottom{border-top-color:#ffffff0f}[data-theme=dark] .sidebar-class-toggle:hover{background:#ffffff0f}[data-theme=dark] .select{background-image:none;background-color:#1d1915;box-shadow:none}[data-theme=dark] .form-row .btn{border:1px solid rgba(255,255,255,.08)}[data-theme=dark] .admin-topbar{border-bottom-color:#ffffff0f}[data-theme=dark] .stat-card{border-color:#ffffff0f}a{font-weight:600;color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}*{scrollbar-width:thin;scrollbar-color:var(--accent) transparent}*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-track{background:transparent}*::-webkit-scrollbar-thumb{background:var(--accent);border-radius:999px}*::-webkit-scrollbar-thumb:hover{background:var(--primary)}html,body{overflow-x:hidden}body{margin:0;min-width:320px;min-height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:0;background:radial-gradient(1200px 520px at 10% -10%,var(--bg-accent),transparent 60%),radial-gradient(900px 420px at 95% 0%,rgba(201,154,107,.18),transparent 55%),var(--bg)}#root{width:100%;max-width:100vw}.app-shell{width:100%}.app-topbar{position:sticky;top:12px;z-index:120;padding-bottom:14px}.app-topbar-inner{width:var(--app-frame-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:14px 18px;border-radius:18px;border:1px solid rgba(73,54,34,.1);background:color-mix(in srgb,var(--panel) 88%,rgba(255,255,255,.7) 12%);box-shadow:0 16px 34px #2d241614;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.app-brand-block{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.app-brand{font-size:1.3rem;font-weight:700;letter-spacing:.2px;display:flex;align-items:center;gap:8px}.app-brand-logo{height:32px;width:32px;object-fit:contain;border-radius:6px}.app-role-chip{display:inline-flex;align-items:center;min-height:28px;padding:4px 10px;border-radius:999px;background:color-mix(in srgb,var(--accent) 18%,var(--panel) 82%);color:var(--text);font-size:.88rem;font-weight:700}.app-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}.app-user-email{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:.92rem}.app-main{width:100%;display:flex;flex-direction:column;gap:16px}.app-banner-card{max-width:none;margin-bottom:0}.app-container{width:var(--app-frame-width);margin:0 auto;display:flex;justify-content:center}.loading-workspace{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:16px;text-align:center;padding:32px 20px}.loading-workspace-logo{width:56px;height:56px;object-fit:contain;opacity:.85;margin-bottom:4px}.loading-workspace-spinner{width:32px;height:32px;border:3px solid color-mix(in srgb,var(--primary) 20%,transparent);border-top-color:var(--primary);border-radius:50%;animation:loading-spin .8s linear infinite}@keyframes loading-spin{to{transform:rotate(360deg)}}.loading-workspace-text{font-size:1.05rem;font-weight:600;color:var(--text)}.loading-workspace-help{margin-top:12px;font-size:.82rem;color:var(--muted)}.loading-workspace-link{background:none;border:none;padding:0;font:inherit;font-size:.82rem;color:var(--primary);text-decoration:underline;text-underline-offset:2px;cursor:pointer;transition:opacity .15s}.loading-workspace-link:hover{opacity:.7}.no-role-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:12px;text-align:center;padding:32px 20px;max-width:420px}.no-role-logo{width:48px;height:48px;object-fit:contain;opacity:.8;margin-bottom:4px}.no-role-icon{width:64px;height:64px;border-radius:50%;background:color-mix(in srgb,var(--danger, #f3d2cf) 60%,transparent);display:flex;align-items:center;justify-content:center;color:#b44a3e;margin-bottom:4px}[data-theme=dark] .no-role-icon{background:color-mix(in srgb,#b44a3e 18%,transparent);color:#e8887e}.no-role-title{margin:0;font-size:1.35rem;font-weight:700;color:var(--text)}.no-role-desc{margin:0;font-size:.9rem;line-height:1.55;color:var(--muted);max-width:360px}.no-role-info{margin-top:4px;padding:8px 16px;border-radius:8px;background:color-mix(in srgb,var(--text) 5%,transparent);font-size:.82rem;color:var(--muted);word-break:break-all}.no-role-actions{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap;justify-content:center}.card{background:var(--panel);max-width:none;width:100%;padding:28px;border-radius:16px;box-shadow:var(--card-shadow);border:none;box-sizing:border-box}.card-header h2{margin:0;font-size:1.7rem;color:var(--text);letter-spacing:.2px}.card-header .muted{margin-top:6px;color:var(--muted);font-size:1rem}.form-row{display:flex;gap:12px;align-items:flex-start;margin-top:14px;flex-wrap:wrap}.auth-form-stack{width:min(100%,460px);margin:0;display:flex;flex-direction:column;gap:6px}.auth-form-row{display:flex;gap:6px;flex-wrap:wrap;width:100%}.auth-field{min-height:32px;padding:6px 10px;font-size:.96rem}.auth-form-row-button{flex:1 1 0;min-width:0}.auth-form-submit{align-self:stretch;width:100%;min-width:0}.auth-action{min-height:32px;padding:6px 11px;font-size:.95rem}.input,.select{padding:11px 14px;border-radius:10px;border:1px solid rgba(73,54,34,.12);background:var(--panel-strong);color:var(--text);font-size:1rem;min-height:42px;box-sizing:border-box}.input{flex:1 1 260px}.autocomplete{position:relative;flex:1 1 260px;z-index:5}.autocomplete .input{width:100%}.autocomplete:focus-within{z-index:30}.enroll-row{align-items:flex-start}.enroll-field{position:relative;flex:1 1 320px;z-index:1}.enroll-field:focus-within{z-index:20}.select{width:160px;appearance:none;background-image:linear-gradient(180deg,#ffffffe6,#fcf7f0f2),url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat,no-repeat;background-position:center,right 12px center;background-size:auto,14px 14px;padding-right:34px;box-shadow:inset 0 1px #ffffffb3}.input:focus,.select:focus{outline:none;border-color:#c99a6bb3;box-shadow:0 0 0 3px #c99a6b38}.autocomplete-menu{position:absolute;margin-top:4px;background:var(--msg-panel-surface);border:1px solid var(--msg-panel-border);border-radius:10px;box-shadow:var(--msg-panel-shadow);max-height:260px;overflow:auto;z-index:60;min-width:320px;width:100%}.autocomplete-item{width:100%;text-align:left;background:transparent;border:none;padding:10px 12px;display:flex;flex-direction:column;gap:4px;cursor:pointer}.autocomplete-item:hover,.autocomplete-item.active{background:color-mix(in srgb,var(--msg-panel-surface) 88%,#000 12%)}.autocomplete-primary{color:var(--text);font-weight:600}.autocomplete-secondary{color:var(--muted);font-size:.92rem}.btn{-webkit-appearance:none;appearance:none;border-radius:10px;padding:10px 16px;border:0;outline:0;box-shadow:none;cursor:pointer;font-weight:700;font-size:.92rem;letter-spacing:.2px;display:inline-flex;align-items:center;justify-content:center;gap:6px;line-height:1.4;background-clip:padding-box}.btn:disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--primary);color:var(--primary-contrast)}.btn-ghost{background:var(--panel);color:var(--text)}.btn-secondary{background:color-mix(in srgb,var(--panel) 75%,var(--accent) 25%);color:var(--text)}.btn-danger{background:#c0392b;color:#fff}.btn-danger:hover{background:#a93226}.btn-sm{padding:5px 10px;font-size:.82rem;border-radius:8px}.btn-xs{padding:2px 8px;font-size:.75rem;border-radius:6px;font-weight:600}.btn-block{width:100%;text-align:center}.combobox{position:relative;display:inline-block}.combobox-trigger{-webkit-appearance:none;appearance:none;display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:8px 12px;border:none;border-radius:10px;background:var(--panel);color:var(--text);font-size:.9rem;cursor:pointer;text-align:left;min-height:38px;transition:background .15s ease}.combobox-trigger:hover{background:color-mix(in srgb,var(--panel) 85%,var(--accent) 15%)}.combobox-placeholder{color:var(--muted)}.combobox-input{-webkit-appearance:none;appearance:none;border:none;background:transparent;color:var(--text);font-size:.9rem;outline:none;width:100%;padding:0;position:absolute;inset:0 28px 0 12px}.combobox-input::placeholder{color:var(--muted)}.combobox-trigger{position:relative}.combobox-arrow{flex-shrink:0;transition:transform .2s cubic-bezier(.4,0,.2,1);opacity:.6}.combobox-arrow.open{transform:rotate(180deg)}.combobox-dropdown{position:absolute;top:calc(100% + 4px);left:0;min-width:100%;max-height:240px;background:var(--panel);border-radius:10px;box-shadow:0 8px 24px #00000040;z-index:100;overflow:hidden;display:flex;flex-direction:column;animation:combobox-in .15s ease}@keyframes combobox-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.combobox-search{-webkit-appearance:none;appearance:none;border:none;border-bottom:1px solid rgba(73,54,34,.1);background:transparent;padding:8px 12px;font-size:.85rem;color:var(--text);outline:none;width:100%;box-sizing:border-box}.combobox-search::placeholder{color:var(--muted)}.combobox-options{overflow-y:auto;max-height:200px;padding:4px;scrollbar-width:thin;scrollbar-color:var(--accent) transparent}.combobox-option{-webkit-appearance:none;appearance:none;display:block;width:100%;text-align:left;padding:7px 10px;border:none;border-radius:6px;background:transparent;color:var(--text);font-size:.88rem;cursor:pointer;transition:background .1s ease}.combobox-option:hover{background:color-mix(in srgb,var(--panel) 80%,var(--accent) 20%)}.combobox-option.active{color:var(--primary);font-weight:600}.combobox-empty{padding:10px 12px;color:var(--muted);font-size:.85rem;text-align:center}.tab-btn{background:transparent;border:none;border-bottom:2px solid transparent;padding:6px 4px;font-weight:700;color:var(--muted);cursor:pointer;letter-spacing:.2px;transition:color .16s ease,border-color .16s ease,transform .16s ease,font-size .16s ease}.tab-btn.active{color:var(--text);border-bottom-color:var(--accent);font-size:1.03rem}.tab-btn:focus{outline:none;border-bottom-color:#d6b08a}.section{margin-top:24px}.section h3{margin-bottom:8px;color:var(--text)}.card-list{list-style:none;padding:0;margin:0}.card-list li{padding:14px;border-radius:12px;background:color-mix(in srgb,var(--panel) 92%,#fff 8%);border:1px solid rgba(73,54,34,.12);margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;color:var(--text)}.card-list .meta{color:var(--muted);font-size:.95rem}.small{font-size:.9rem;color:var(--muted)}.instructions{margin-top:12px;padding:12px;border-radius:10px;background:var(--panel-strong);border:1px solid rgba(73,54,34,.1);color:var(--muted)}.header-menu{position:relative}.header-menu-button{display:inline-flex;align-items:center;position:relative;gap:8px;min-height:var(--header-control-size);padding:9px 14px;border-radius:12px;border:1px solid rgba(73,54,34,.12);background:color-mix(in srgb,var(--panel) 86%,transparent 14%);color:var(--text);cursor:pointer;font:inherit;font-weight:700;line-height:1;text-decoration:none}.header-menu-button .icon{width:var(--header-icon-size);height:var(--header-icon-size);margin-right:0}.header-menu-button:hover{text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 16px #00000014}.header-menu-button.icon-only{justify-content:center;width:var(--header-control-size);min-width:var(--header-control-size);height:var(--header-control-size);padding:0}.header-menu-button.is-active{background:color-mix(in srgb,var(--accent) 24%,var(--panel) 76%);border-color:#c99a6b59}.header-badge{position:absolute;top:-4px;right:-4px;display:inline-flex;align-items:center;justify-content:center;min-width:19px;height:19px;padding:0 5px;border-radius:999px;background:#d14343;color:#fff;border:2px solid var(--panel);box-shadow:0 4px 10px #0000001f;font-size:10px;font-weight:700;line-height:1;pointer-events:none}.header-popover{position:absolute;top:calc(100% + 12px);right:0;width:min(820px,92vw);padding:14px;border-radius:14px;border:1px solid var(--msg-panel-border);background:var(--msg-panel-surface);box-shadow:var(--msg-panel-shadow);z-index:140}.notifications-popover{width:min(360px,92vw)}.messages-popover{width:min(900px,92vw)}.popover-title-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.popover-title-row h3{margin:0;font-size:1.05rem}.popover-list{display:flex;flex-direction:column;gap:8px;max-height:280px;overflow:auto;margin-top:8px}.popover-list-item{padding:10px 12px;border-radius:12px;border:1px solid rgba(73,54,34,.08);background:var(--msg-panel-inner)}.popover-list-item-button{width:100%;color:var(--text);text-align:left;cursor:pointer;font:inherit}.popover-list-item-button.is-unread{border-color:#d143432e;background:color-mix(in srgb,var(--msg-panel-inner) 88%,rgba(209,67,67,.12) 12%)}.popover-item-title{font-weight:700;margin-bottom:4px}.popover-item-time{margin-top:4px}.messages-layout{display:grid;grid-template-columns:minmax(250px,310px) minmax(280px,1fr);gap:14px}.messages-column{min-width:0}.messages-thread-column{display:flex;flex-direction:column;gap:8px}.messages-contacts{margin-top:10px}.thread-item{width:100%;padding:10px 12px;border-radius:12px;border:1px solid rgba(73,54,34,.08);background:var(--msg-panel-inner);color:var(--text);text-align:left;cursor:pointer}.thread-item.is-active{border-color:#c99a6b73;background:color-mix(in srgb,var(--msg-panel-inner) 82%,var(--accent) 18%)}.thread-item-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:4px}.thread-unread-dot{width:9px;height:9px;border-radius:50%;background:#d14343;flex-shrink:0}.message-stream{min-height:220px;max-height:320px;overflow:auto;padding:10px;border-radius:12px;border:1px solid rgba(73,54,34,.08);background:var(--msg-panel-inner)}.message-bubble{margin-bottom:8px;padding:10px 12px;border-radius:12px;background:color-mix(in srgb,var(--panel) 88%,#fff 12%);border:1px solid rgba(73,54,34,.08)}.message-bubble.is-self{background:color-mix(in srgb,var(--accent) 18%,var(--panel) 82%)}.message-label{font-size:.8rem;font-weight:700;color:var(--muted);margin-bottom:4px}.toasts-container{position:fixed;top:20px;right:20px;z-index:9999}.toast{margin-bottom:8px;padding:10px 14px;border-radius:10px;box-shadow:0 6px 16px #00000014;min-width:220px;color:var(--text);transform-origin:right top;opacity:0;transform:translateY(-6px) scale(.99);animation:toast-in .18s ease forwards}.toast.success{background:var(--success)}.toast.error{background:var(--danger)}.toast.info{background:var(--info)}.toast button{background:transparent;border:none;cursor:pointer;font-weight:700}.toast .btn{padding:4px 8px;font-size:.9rem;border-radius:6px}.toast .btn.btn-ghost{border:1px solid rgba(0,0,0,.04);background:transparent}@keyframes toast-in{to{opacity:1;transform:translateY(0) scale(1)}}.admin-layout{display:flex;min-height:100vh;width:100%;position:relative;overflow-x:hidden}.admin-sidebar{position:fixed;top:0;left:0;bottom:0;width:260px;background:var(--panel);border-right:1px solid rgba(73,54,34,.08);box-shadow:2px 0 25px #0000000f;display:flex;flex-direction:column;justify-content:space-between;z-index:200;transform:translate(-100%);transition:transform .25s cubic-bezier(.4,0,.2,1);overflow-y:auto}.admin-sidebar.open{transform:translate(0)}.sidebar-overlay{display:none}.sidebar-top{padding:20px 16px 16px}.sidebar-brand{display:flex;align-items:center;gap:10px;margin-bottom:24px}.sidebar-nav{display:flex;flex-direction:column;gap:4px;position:relative}.sidebar-nav-indicator{position:absolute;left:0;right:0;border-radius:8px;background:var(--primary);z-index:0;transition:top .28s cubic-bezier(.4,0,.2,1),height .28s cubic-bezier(.4,0,.2,1),opacity .18s ease;pointer-events:none}.sidebar-nav-btn{text-align:left;border:none;border-radius:8px;padding:10px 12px;cursor:pointer;background:transparent;color:var(--text);font-weight:500;font-size:.95rem;display:flex;align-items:center;gap:4px;position:relative;z-index:1;transition:color .18s ease,font-weight .18s ease}.sidebar-nav-btn:hover:not(.active){background:#49362226;border-left:3px solid var(--primary);padding-left:9px}.sidebar-nav-btn.active{background:transparent;color:var(--primary-contrast);font-weight:700}.sidebar-class-picker{margin:4px 0}.sidebar-class-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border:none;border-radius:8px;background:transparent;color:var(--text);font-size:.95rem;font-weight:500;cursor:pointer;transition:color .15s ease}.sidebar-class-toggle:hover{background:#4936220f}.sidebar-class-arrow{transition:transform .25s cubic-bezier(.4,0,.2,1);flex-shrink:0}.sidebar-class-arrow.open{transform:rotate(180deg)}.sidebar-class-list{display:grid;grid-template-rows:0fr;transition:grid-template-rows .25s cubic-bezier(.4,0,.2,1);overflow:hidden}.sidebar-class-list.open{grid-template-rows:1fr}.sidebar-class-list-inner{min-height:0;overflow:hidden}.sidebar-class-item{display:block;width:100%;text-align:left;padding:8px 12px 8px 24px;border:none;background:transparent;color:var(--muted);font-size:.88rem;cursor:pointer;border-radius:6px;transition:color .12s ease,background .12s ease}.sidebar-class-item:hover{color:var(--text);background:#49362214}.sidebar-class-item.active{color:var(--primary);font-weight:600}.sidebar-bottom{padding:12px 16px 16px;border-top:1px solid rgba(73,54,34,.12);display:flex;align-items:flex-end;justify-content:space-between;gap:8px}.sidebar-user-info{min-width:0;flex:1}.sidebar-logout-btn{border:none;border-radius:8px;padding:8px;cursor:pointer;background:var(--danger);color:var(--primary-contrast);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s ease,filter .15s ease}.sidebar-logout-btn:hover{filter:brightness(1.3);background:var(--danger)}.sidebar-logout-btn .icon{margin-right:0}.sidebar-user-dropdown{position:relative;width:100%}.sidebar-user-trigger{width:100%;display:flex;align-items:center;gap:8px;padding:8px 10px;border:none;border-radius:10px;background:transparent;color:inherit;cursor:pointer;text-align:left;transition:background .15s ease}.sidebar-user-trigger:hover{background:#49362214}[data-theme=dark] .sidebar-user-trigger:hover{background:#ffffff0f}.sidebar-user-trigger-info{min-width:0;flex:1}.sidebar-user-trigger-role{font-weight:600;font-size:.95rem}.sidebar-user-trigger-name{font-size:.88rem}.sidebar-user-trigger-email{font-size:.82rem;color:var(--muted);word-break:break-all}.sidebar-user-menu{position:absolute;bottom:calc(100% + 8px);left:0;right:0;background:var(--card-bg);border:1px solid rgba(73,54,34,.12);border-radius:12px;box-shadow:0 4px 24px #0000001f;padding:6px;z-index:160;animation:sidebar-menu-in .15s 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