:root{--font-family: var(--font-sans);--bg-primary: var(--gray-12);--bg-secondary: var(--gray-11);--bg-tertiary: var(--gray-10);--bg-elevated: var(--gray-9);--bg-secondary-rgb: 30, 30, 30;--text-primary: var(--gray-0);--text-secondary: var(--gray-5);--text-muted: var(--gray-7);--accent-primary: var(--indigo-6);--accent-primary-hover: var(--indigo-5);--accent-success: var(--green-6);--accent-warning: var(--yellow-5);--accent-danger: var(--red-6);--accent-danger-hover: var(--red-5);--border-color: var(--gray-8);--border-radius: var(--radius-2);--border-radius-sm: var(--radius-1);--shadow-sm: var(--shadow-2);--shadow-md: var(--shadow-3);--shadow-lg: var(--shadow-4);--gradient-primary: linear-gradient(135deg, var(--indigo-6) 0%, var(--violet-6) 100%);--gradient-card: linear-gradient(145deg, hsl(var(--indigo-6-hsl) / .1) 0%, hsl(var(--violet-6-hsl) / .05) 100%);--gradient-mesh: radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0, transparent 50%), radial-gradient(at 100% 0%, hsla(339,49%,30%,1) 0, transparent 50%)}[data-theme=light]{--bg-primary: var(--gray-0);--bg-secondary: var(--gray-1);--bg-tertiary: var(--gray-2);--bg-elevated: var(--gray-3);--bg-secondary-rgb: 255, 255, 255;--text-primary: var(--gray-9);--text-secondary: var(--gray-7);--text-muted: var(--gray-5);--border-color: var(--gray-4);--accent-primary: var(--indigo-7);--accent-primary-hover: var(--indigo-8);--accent-success: var(--green-7);--accent-warning: var(--yellow-7);--accent-danger: var(--red-7);--accent-danger-hover: var(--red-8);--gradient-card: linear-gradient(145deg, hsl(var(--indigo-7-hsl) / .05) 0%, hsl(var(--violet-7-hsl) / .02) 100%);--gradient-mesh: radial-gradient(at 0% 0%, hsla(280,100%,96%,1) 0, transparent 50%), radial-gradient(at 50% 0%, hsla(240,100%,96%,1) 0, transparent 50%), radial-gradient(at 100% 0%, hsla(340,100%,96%,1) 0, transparent 50%)}@keyframes meshFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:var(--accent-primary);text-decoration:none}a:hover{text-decoration:underline}.hidden{display:none!important}.screen{min-height:100vh}.login-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:var(--size-8);background-color:var(--bg-primary);background-image:var(--gradient-mesh);background-size:200% 200%;animation:meshFlow 15s ease infinite}.login-header{text-align:center;margin-bottom:2rem;position:relative;z-index:1}.logo{font-size:var(--font-size-8);margin-bottom:var(--size-4);animation:pulse 2s infinite;filter:drop-shadow(0 0 20px rgba(99,102,241,.3))}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.login-header h1{font-size:var(--font-size-5);font-weight:var(--font-weight-7);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.login-header p{color:var(--text-secondary);margin-top:.5rem}.login-form{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:var(--size-8);width:100%;max-width:450px;box-shadow:var(--shadow-lg);background:rgba(var(--bg-secondary-rgb),.7);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 32px #1f26875e}[data-theme=light] .login-form{background:#ffffffb3;border:1px solid rgba(255,255,255,.5);box-shadow:0 8px 32px #1f26871a}.form-group{margin-bottom:var(--size-4)}.form-group label{display:block;font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.5rem}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.75rem 1rem;font-size:1rem;font-family:var(--font-family);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary);transition:border-color .2s,box-shadow .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px hsl(var(--indigo-6-hsl) / 20%)}.form-group small{display:block;font-size:.75rem;color:var(--text-muted);margin-top:.25rem}.password-wrapper{position:relative;display:flex;align-items:center}.password-toggle{position:absolute;right:.5rem;background:transparent;border:none;cursor:pointer;padding:.25rem;font-size:1.2rem;color:var(--text-secondary);transition:color .2s;display:flex;align-items:center;justify-content:center;border-radius:50%}.password-toggle:hover{color:var(--accent-primary);background:var(--bg-tertiary)}.input-display{display:block;padding:.75rem 1rem;font-size:1.25rem;font-weight:600;background:var(--bg-tertiary);border-radius:var(--border-radius-sm);color:var(--text-primary)}.error-message{color:var(--accent-danger);font-size:.875rem;margin-top:1rem;text-align:center}.login-separator{display:flex;align-items:center;text-align:center;margin:1.5rem 0;color:var(--text-muted)}.login-separator:before,.login-separator:after{content:"";flex:1;border-bottom:1px solid var(--border-color)}.login-separator span{margin:0 1rem;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}.google-btn-container{display:flex;justify-content:center;width:100%;margin-bottom:1rem;min-height:44px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.25rem;font-size:.875rem;font-weight:500;font-family:var(--font-family);border:none;border-radius:var(--border-radius-sm);cursor:pointer;transition:all .2s ease;white-space:nowrap}.btn-primary{background:var(--gradient-primary);color:#fff}.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-elevated)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-tertiary)}.btn-danger{background:var(--accent-danger);color:#fff}.btn-danger:hover{background:var(--accent-danger-hover)}.btn-block{width:100%}.btn-icon{width:32px;height:32px;padding:0;border-radius:50%}.login-info{text-align:center;color:var(--text-muted);font-size:.75rem;margin-top:1rem}.header{display:flex;align-items:center;justify-content:space-between;padding:var(--size-3) var(--size-6);background:var(--bg-secondary);border-bottom:1px solid 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.2s}.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.stat-icon{font-size:2rem}.stat-content{display:flex;flex-direction:column}.stat-number{font-size:2rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:.875rem;color:var(--text-secondary)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--size-5)}.section-header h2{font-size:1.25rem;font-weight:600}.groups-list{display:flex;flex-direction:column;gap:var(--size-2)}.group-card{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:var(--size-3);padding:var(--size-4) var(--size-5);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);cursor:pointer;transition:all .2s ease}.group-card:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);transform:translate(4px)}.group-info h3{font-size:1rem;font-weight:600;margin-bottom:.25rem}.group-info p{font-size:.75rem;color:var(--text-muted)}.group-stats{font-size:.875rem;color:var(--text-secondary)}.group-status{padding:var(--size-1) var(--size-3);border-radius:var(--radius-round);font-size:var(--font-size-0);font-weight:var(--font-weight-5)}.group-status.active{background:hsl(var(--green-6-hsl) / .15);color:var(--accent-success)}.group-status.paused{background:hsl(var(--yellow-5-hsl) / .15);color:var(--accent-warning)}.config-section{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:1.5rem;margin-bottom:1.5rem}.config-row{display:flex;align-items:flex-end;gap:1rem;flex-wrap:wrap}.config-row .form-group{margin-bottom:0;flex:1;min-width:150px}.select-status{min-width:150px}.url-display{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color);font-size:.875rem;color:var(--text-secondary)}.url-display code{display:inline-block;margin-left:var(--size-2);padding:var(--size-1) var(--size-2);background:var(--bg-tertiary);border-radius:var(--radius-1);font-family:var(--font-mono);color:var(--accent-primary);word-break:break-all}.tabs{display:flex;gap:.5rem;margin-bottom:1rem;overflow-x:auto;padding-bottom:.5rem}.tab{display:flex;align-items:center;gap:var(--size-2);padding:var(--size-2) var(--size-4);font-size:var(--font-size-1);font-weight:var(--font-weight-5);font-family:var(--font-family);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-secondary);cursor:pointer;transition:all .2s;white-space:nowrap}.tab:hover{background:var(--bg-tertiary);color:var(--text-primary)}.tab.active{background:var(--gradient-primary);border-color:transparent;color:#fff}.badge{padding:var(--size-1) var(--size-2);background:#fff3;border-radius:var(--radius-round);font-size:var(--font-size-0)}.tab:not(.active) .badge{background:var(--bg-tertiary)}.rules-section{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:var(--size-5)}.rules-toolbar{display:flex;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}.search-input{flex:1;min-width:200px;padding:var(--size-2) var(--size-4);font-size:var(--font-size-1);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary)}.search-input:focus{outline:none;border-color:var(--accent-primary)}.rules-list{display:flex;flex-direction:column;gap:.5rem;max-height:500px;overflow-y:auto}.rule-item{display:flex;align-items:center;justify-content:space-between;padding:var(--size-2) var(--size-4);background:var(--bg-tertiary);border-radius:var(--border-radius-sm);transition:background .2s}.rule-item:hover{background:var(--bg-elevated)}.rule-value{font-family:var(--font-mono);font-size:var(--font-size-1)}.rule-delete{opacity:.5;transition:opacity .2s}.rule-item:hover .rule-delete{opacity:1}.empty-state{text-align:center;padding:var(--size-8);color:var(--text-muted)}.empty-state p{margin-bottom:1rem}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:var(--layer-important);padding:var(--size-4);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);width:100%;max-width:450px;box-shadow:var(--shadow-lg);animation:modalIn .2s ease}.modal-large{max-width:600px}@keyframes modalIn{0%{opacity:0;transform:scale(.95) translateY(-10px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--size-4) var(--size-5);border-bottom:1px solid var(--border-color)}.modal-header h3{font-size:1.125rem;font-weight:600}.modal-close{width:32px;height:32px;border:none;background:transparent;color:var(--text-muted);font-size:1.5rem;cursor:pointer;border-radius:4px;transition:all .2s}.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.modal form{padding:var(--size-5)}.modal-actions{display:flex;justify-content:flex-end;gap:var(--size-3);margin-top:var(--size-5)}#toast-container{position:fixed;bottom:2rem;right:2rem;z-index:2000;display:flex;flex-direction:column;gap:.5rem}.toast{padding:var(--size-3) var(--size-5);background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);box-shadow:var(--shadow-lg);animation:toastIn .3s ease}.toast.success{border-left:4px solid var(--accent-success)}.toast.error{border-left:4px solid var(--accent-danger)}@keyframes toastIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.system-toggle{display:inline-flex;align-items:center;gap:var(--size-2);padding:var(--size-2) var(--size-4);font-weight:var(--font-weight-6);border-radius:var(--border-radius-sm);transition:all .3s ease}.system-toggle .toggle-icon{font-size:1.1rem}.system-toggle.active{background:var(--accent-success);color:#fff}.system-toggle.active:hover{background:var(--green-7)}.system-toggle.inactive{background:var(--accent-danger);color:#fff;animation:pulse-danger 2s infinite}.system-toggle.inactive:hover{background:var(--accent-danger-hover)}@keyframes pulse-danger{0%,to{box-shadow:0 0 hsl(var(--red-6-hsl) / 40%)}50%{box-shadow:0 0 0 8px hsl(var(--red-6-hsl) / 0%)}}.system-status-banner{display:flex;align-items:center;justify-content:space-between;padding:var(--size-3) var(--size-4);margin-bottom:var(--size-5);background:linear-gradient(135deg,hsl(var(--red-6-hsl) / 15%),hsl(var(--yellow-5-hsl) / 10%));border:1px solid var(--accent-danger);border-radius:var(--border-radius);animation:banner-pulse 3s infinite}@keyframes banner-pulse{0%,to{border-color:var(--accent-danger)}50%{border-color:var(--accent-warning)}}.system-status-banner .status-content{display:flex;align-items:center;gap:.75rem}.system-status-banner .status-icon{font-size:1.5rem;animation:shake .5s ease-in-out infinite alternate}@keyframes shake{0%{transform:rotate(-5deg)}to{transform:rotate(5deg)}}.system-status-banner .status-text{font-weight:600;color:var(--accent-danger)}.btn-success:hover{background:var(--green-7);transform:translateY(-1px);box-shadow:var(--shadow-md)}.requests-section{background:var(--bg-secondary);border-radius:var(--border-radius);padding:var(--size-5);margin-bottom:var(--size-7);border:1px solid var(--border-color)}.requests-section .section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.requests-section h2{font-size:1.1rem;font-weight:600}.requests-actions{display:flex;align-items:center;gap:.75rem}.server-status{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--text-muted)}.status-dot.online{background:var(--accent-success);box-shadow:0 0 var(--size-2) var(--accent-success)}.status-dot.offline{background:var(--accent-danger)}.requests-config{display:flex;flex-wrap:wrap;gap:var(--size-3);padding:var(--size-3);background:var(--bg-tertiary);border-radius:var(--border-radius-sm);margin-bottom:var(--size-3)}.requests-config .form-group.inline{display:flex;align-items:center;gap:.5rem;flex:1;min-width:200px}.requests-config label{font-size:.85rem;color:var(--text-secondary);white-space:nowrap}.requests-config input{flex:1;padding:.5rem .75rem;font-size:.9rem;background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary)}.requests-list{display:flex;flex-direction:column;gap:.75rem}.requests-list .empty-message{text-align:center;color:var(--text-secondary);padding:2rem}.requests-list .empty-message.error{color:var(--accent-danger)}.request-item{display:flex;justify-content:space-between;align-items:center;gap:var(--size-3);padding:var(--size-3);background:var(--bg-tertiary);border-radius:var(--border-radius-sm);border:1px solid var(--border-color)}.request-item.read-only{opacity:.7;background:var(--bg-secondary)}.request-info{display:flex;flex-direction:column;gap:.25rem;flex:1}.request-domain{font-family:var(--font-mono);font-weight:var(--font-weight-6);color:var(--accent-primary)}.request-meta{font-size:.8rem;color:var(--text-secondary)}.request-group{font-size:.75rem;color:var(--text-muted)}.request-actions{display:flex;align-items:center;gap:.5rem}.request-group-select{padding:.4rem .6rem;font-size:.85rem;background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary)}.btn-sm{padding:.4rem .6rem;font-size:.85rem}.stat-card.stat-requests{cursor:pointer;transition:transform .2s,border-color .2s}.stat-card.stat-requests:hover{transform:translateY(-2px);border-color:var(--accent-primary)}.stat-card.stat-requests.has-pending{border-color:var(--accent-warning);background:linear-gradient(145deg,hsl(var(--yellow-5-hsl) / 10%),hsl(var(--yellow-5-hsl) / 5%))}.stat-card.stat-requests.has-pending .stat-icon{animation:bounce 1s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}@media (max-width: 768px){.header,.main-content{padding:1rem}.group-card{grid-template-columns:1fr;gap:.75rem}.config-row{flex-direction:column}.config-row .btn{width:100%}.tabs{flex-wrap:nowrap}.rules-toolbar{flex-direction:column}.system-toggle .toggle-text{display:none}.system-status-banner{flex-direction:column;gap:1rem;text-align:center}.request-item{flex-direction:column;align-items:stretch}.request-actions{justify-content:flex-end}.requests-config{flex-direction:column}.requests-config .form-group.inline{flex-direction:column;align-items:stretch}.quick-actions{display:flex;gap:.5rem;margin-top:.75rem}.quick-actions .btn{flex:1;padding:.875rem;font-size:1rem}}.users-section{margin-top:var(--size-7)}.users-list{display:flex;flex-direction:column;gap:.75rem}.user-card{display:flex;align-items:center;justify-content:space-between;padding:var(--size-4) var(--size-5);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);transition:all .2s ease}.user-card:hover{background:var(--bg-tertiary);border-color:var(--accent-primary)}.user-info{flex:1}.user-info h3{font-size:1rem;font-weight:600;margin-bottom:.25rem;display:flex;align-items:center;gap:.5rem}.user-info p{font-size:.875rem;color:var(--text-secondary)}.user-roles{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.5rem}.user-actions{display:flex;gap:.5rem}.role-badge{display:inline-flex;align-items:center;gap:var(--size-1);padding:var(--size-1) var(--size-3);border-radius:var(--radius-round);font-size:var(--font-size-0);font-weight:var(--font-weight-5)}.role-badge.admin{background:hsl(var(--yellow-4-hsl) / .15);color:var(--yellow-4)}.role-badge.teacher{background:#6366f126;color:var(--accent-primary)}.role-badge.student{background:hsl(var(--green-6-hsl) / .15);color:var(--accent-success)}.role-badge .group-count{padding:var(--size-1) calc(var(--size-1) * 1.5);background:#ffffff1a;border-radius:var(--radius-pill);font-size:var(--font-size-00)}.status-badge{padding:.25rem .625rem;border-radius:2rem;font-size:.75rem;font-weight:500}.status-badge.active{background:#22c55e26;color:var(--accent-success)}.status-badge.inactive{background:#ef444426;color:var(--accent-danger)}.status-badge.pending{background:#eab30826;color:var(--accent-warning)}.checkbox-list{display:flex;flex-direction:column;gap:var(--size-2);max-height:200px;overflow-y:auto;padding:var(--size-2);background:var(--bg-tertiary);border-radius:var(--border-radius-sm)}.checkbox-item{display:flex;align-items:center;gap:.75rem;padding:.5rem;border-radius:4px;cursor:pointer;transition:background .2s}.checkbox-item:hover{background:var(--bg-elevated)}.checkbox-item input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent-primary)}.checkbox-item label{flex:1;cursor:pointer;font-size:.875rem}.teacher-view .admin-only{display:none!important}.teacher-banner{display:flex;align-items:center;gap:var(--size-3);padding:var(--size-3) var(--size-5);margin-bottom:var(--size-5);background:linear-gradient(135deg,hsl(var(--indigo-6-hsl) / .15),hsl(var(--violet-6-hsl) / .1));border:1px solid var(--accent-primary);border-radius:var(--border-radius)}.teacher-banner .icon{font-size:1.5rem}.teacher-banner .info{flex:1}.teacher-banner .info strong{display:block;margin-bottom:.25rem}.teacher-banner .info span{font-size:.875rem;color:var(--text-secondary)}.btn-approve{background:var(--accent-success);color:#fff}.btn-approve:hover{background:var(--green-7)}.btn-reject{background:var(--accent-danger);color:#fff}.btn-reject:hover{background:var(--accent-danger-hover)}.btn-sm{padding:.5rem .75rem;font-size:.75rem}.btn-success{background:var(--accent-success);color:#fff}.btn-success:hover{background:var(--green-7)}.empty-message{text-align:center;padding:var(--size-8);color:var(--text-muted);font-style:italic}.empty-message.success{color:var(--accent-success);display:flex;flex-direction:column;align-items:center;gap:.5rem}.empty-message.success:before{content:"✅";font-size:2rem}.request-item{position:relative}.request-item .request-domain{font-size:1.1rem;word-break:break-all}.request-item .request-time{font-size:.75rem;color:var(--text-muted);display:inline-block;margin-left:.5rem}.request-item .request-time:before{content:"⏱️ "}.request-actions .btn{min-height:44px;min-width:44px;font-size:var(--font-size-3);padding:var(--size-2) var(--size-3)}.request-actions .approve-request-btn{background:var(--accent-success);color:#fff}.request-actions .approve-request-btn:hover{background:var(--green-7);transform:scale(1.05)}.request-actions .reject-request-btn{background:var(--accent-danger);color:#fff}.request-actions .reject-request-btn:hover{background:var(--accent-danger-hover);transform:scale(1.05)}.request-actions .btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.status-badge{padding:var(--size-1) var(--size-3);border-radius:var(--radius-round);font-size:var(--font-size-0);font-weight:var(--font-weight-5)}.status-badge.pending{background:hsl(var(--yellow-5-hsl) / .15);color:var(--accent-warning)}.status-badge.active{background:hsl(var(--green-6-hsl) / .15);color:var(--accent-success)}.status-badge.inactive{background:hsl(var(--gray-5-hsl) / .15);color:var(--text-muted)}@media (max-width: 480px){.request-item{padding:1rem}.request-actions{width:100%;justify-content:stretch;gap:.75rem;margin-top:.75rem}.request-actions .btn{flex:1;min-height:48px;font-size:1.5rem}.request-actions .request-group-select{flex:2;min-height:48px;font-size:1rem}.teacher-banner{flex-direction:column;text-align:center}.teacher-banner .icon{font-size:2rem}.stats-section{grid-template-columns:repeat(2,1fr)}.header .admin-only{display:none}}@media (max-width: 360px){.stats-section{grid-template-columns:1fr}.stat-card{padding:var(--size-3)}.stat-number{font-size:var(--font-size-4)}}.modal-blocked-domain{max-width:480px}.modal-header-warning{background:linear-gradient(135deg,hsl(var(--red-6-hsl) / 15%),hsl(var(--yellow-5-hsl) / 10%));border-bottom:2px solid var(--accent-danger)}.modal-header-warning h3{color:var(--accent-danger)}.modal-body{padding:var(--size-5)}.blocked-domain-alert{display:flex;gap:1.25rem;align-items:flex-start}.blocked-domain-icon{font-size:3rem;line-height:1;flex-shrink:0}.blocked-domain-info{flex:1}.blocked-domain-message{font-size:1rem;margin-bottom:1rem;line-height:1.5}.blocked-domain-message strong{color:var(--accent-danger);font-weight:600}.blocked-domain-details{display:flex;flex-direction:column;gap:.25rem;padding:.75rem 1rem;background:var(--bg-tertiary);border-radius:var(--border-radius-sm);border-left:3px solid var(--accent-warning);margin-bottom:1rem}.blocked-domain-details .detail-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.blocked-domain-details code{font-family:SF Mono,Monaco,Consolas,monospace;font-size:1rem;color:var(--accent-warning);font-weight:600}.blocked-domain-hint{font-size:var(--font-size-1);color:var(--text-secondary);padding:var(--size-2);background:hsl(var(--indigo-6-hsl) / .1);border-radius:var(--border-radius-sm);border-left:3px solid var(--accent-primary)}@media (max-width: 480px){.blocked-domain-alert{flex-direction:column;text-align:center}.blocked-domain-icon{font-size:4rem;margin:0 auto}.blocked-domain-details{border-left:none;border-top:3px solid var(--accent-warning)}.blocked-domain-hint{border-left:none;border-top:3px solid var(--accent-primary)}}.classrooms-section{margin-bottom:var(--size-7)}.classrooms-list{display:flex;flex-direction:column;gap:var(--size-2)}.classroom-card{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:var(--size-5);padding:var(--size-4) var(--size-5);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);transition:all .2s ease}.classroom-card:hover{background:var(--bg-tertiary);border-color:var(--accent-primary)}.classroom-info h3{font-size:1rem;font-weight:600;margin-bottom:.25rem}.classroom-info p{font-size:.75rem;color:var(--text-muted)}.classroom-group{display:flex;flex-direction:column;gap:.25rem}.classroom-group label{font-size:.75rem;color:var(--text-muted)}.classroom-group select{padding:.5rem .75rem;font-size:.875rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary);min-width:200px}.classroom-group select:focus{outline:none;border-color:var(--accent-primary)}.classroom-actions{display:flex;gap:.5rem}@media (max-width: 768px){.classroom-card{grid-template-columns:1fr;gap:1rem}.classroom-group,.classroom-group select{width:100%}}.schedule-section{margin-bottom:var(--size-7)}.schedule-grid-container{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:var(--size-5);overflow-x:auto}.schedule-grid{min-width:600px}.schedule-header{display:grid;grid-template-columns:100px repeat(5,1fr);gap:4px;margin-bottom:4px}.schedule-time-header,.schedule-day-header{padding:var(--size-2);background:var(--bg-tertiary);border-radius:var(--border-radius-sm);font-weight:var(--font-weight-6);font-size:var(--font-size-1);text-align:center}.schedule-time-header{color:var(--text-muted)}.schedule-day-header{color:var(--text-primary)}.schedule-body{display:flex;flex-direction:column;gap:4px}.schedule-row{display:grid;grid-template-columns:100px repeat(5,1fr);gap:4px}.schedule-time{padding:.75rem .5rem;background:var(--bg-tertiary);border-radius:var(--border-radius-sm);font-size:.75rem;color:var(--text-muted);text-align:center;display:flex;align-items:center;justify-content:center}.schedule-cell{min-height:60px;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center;position:relative;transition:all .2s ease}.schedule-cell-empty{background:var(--bg-tertiary);border:2px dashed var(--border-color);cursor:pointer}.schedule-cell-empty:hover{background:var(--bg-elevated);border-color:var(--accent-primary)}.schedule-add-icon{font-size:1.5rem;color:var(--text-muted);opacity:0;transition:opacity .2s}.schedule-cell-empty:hover .schedule-add-icon{opacity:1;color:var(--accent-primary)}.schedule-cell-occupied{padding:.5rem;text-align:center}.schedule-cell-occupied.is-mine{background:linear-gradient(135deg,hsl(var(--indigo-6-hsl) / .3),hsl(var(--violet-6-hsl) / .2));border:1px solid var(--accent-primary)}.schedule-cell-occupied.is-other{background:var(--bg-elevated);border:1px solid var(--border-color)}.schedule-group-name{font-size:.75rem;font-weight:500;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.schedule-delete-btn{position:absolute;top:4px;right:4px;width:20px;height:20px;border:none;background:var(--accent-danger);color:#fff;border-radius:50%;font-size:.875rem;cursor:pointer;opacity:0;transition:opacity .2s;display:flex;align-items:center;justify-content:center}.schedule-cell-occupied:hover .schedule-delete-btn{opacity:1}.schedule-delete-btn:hover{background:var(--accent-danger-hover)}.schedule-legend{display:flex;flex-wrap:wrap;gap:1rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color);font-size:.875rem;color:var(--text-secondary)}.schedule-legend-item{display:flex;align-items:center;gap:.5rem}.schedule-legend-color{width:12px;height:12px;background:var(--gradient-primary);border-radius:3px}.schedule-no-groups{color:var(--text-muted);font-size:.875rem;padding:1rem;text-align:center}@media (max-width: 768px){.schedule-header,.schedule-row{grid-template-columns:70px repeat(5,1fr)}.schedule-time{font-size:.65rem;padding:.5rem .25rem}.schedule-day-header{font-size:.75rem;padding:.5rem .25rem}.schedule-cell{min-height:50px}.schedule-group-name{font-size:.65rem}}.success-message{padding:.75rem;background-color:var(--success-bg, #def7ec);color:var(--success-text, #03543f);border-radius:4px;margin-top:1rem;font-size:.875rem}.login-links{display:flex;justify-content:flex-end;margin-top:.5rem}.forgot-password-link{font-size:.8rem;color:var(--text-muted);text-decoration:none}.forgot-password-link:hover{color:var(--primary-color);text-decoration:underline}.spinner{display:inline-block;width:1rem;height:1rem;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spinner-spin .75s linear infinite;vertical-align:middle}@keyframes spinner-spin{to{transform:rotate(360deg)}}.btn.is-loading{position:relative;pointer-events:none;opacity:.8}.btn.is-loading .btn-text-hide{visibility:hidden}.btn.is-loading:after{content:"";position:absolute;width:1.25rem;height:1.25rem;border:2px solid transparent;border-top-color:currentColor;border-left-color:currentColor;border-radius:50%;animation:spinner-spin .6s linear infinite}.machines-section{margin-bottom:var(--size-7)}.machines-list{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius);overflow:hidden}.machines-table{width:100%;border-collapse:collapse}.machines-table th,.machines-table td{padding:var(--size-3) var(--size-4);text-align:left;border-bottom:1px solid var(--border-color)}.machines-table th{background:var(--bg-tertiary);font-weight:var(--font-weight-6);font-size:var(--font-size-1);color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.machines-table tbody tr:hover{background:var(--bg-hover)}.machines-table tbody tr:last-child td{border-bottom:none}.machines-table .actions-cell{white-space:nowrap}.badge{display:inline-block;padding:.25rem .5rem;font-size:var(--font-size-0);font-weight:var(--font-weight-5);border-radius:var(--border-radius-sm)}.badge-success{background:var(--success-bg, #def7ec);color:var(--success-text, #03543f)}.badge-warning{background:var(--warning-bg, #fef3c7);color:var(--warning-text, #92400e)}.btn-sm{padding:.25rem .5rem;font-size:var(--font-size-0)}.token-url-display{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000}.token-url-display .modal-backdrop{position:absolute;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center}.token-url-display .modal-content{background:var(--bg-primary);border-radius:var(--border-radius);padding:var(--size-6);max-width:600px;width:90%;box-shadow:0 25px 50px -12px #00000040}.token-url-display .modal-content h3{margin:0 0 var(--size-2) 0}.token-url-display .modal-content input{margin:var(--size-4) 0;font-family:monospace;font-size:var(--font-size-0)}.token-url-display .modal-actions{display:flex;gap:var(--size-3);justify-content:flex-end}@media (max-width: 768px){.machines-table{font-size:var(--font-size-0)}.machines-table th,.machines-table td{padding:var(--size-2)}.machines-table th:nth-child(3),.machines-table td:nth-child(3),.machines-table th:nth-child(5),.machines-table td:nth-child(5){display:none}}.setup-loading{text-align:center;padding:var(--size-8);color:var(--text-secondary)}.spinner-large{width:48px;height:48px;border:4px solid var(--bg-tertiary);border-top-color:var(--accent-primary);border-radius:50%;animation:spinner-spin 1s linear infinite;margin:0 auto var(--size-4)}.setup-success{text-align:center;margin-bottom:var(--size-5)}.setup-success .success-icon{font-size:var(--font-size-8);display:block;margin-bottom:var(--size-3)}.setup-success h3{font-size:var(--font-size-4);margin-bottom:var(--size-2);color:var(--accent-success)}.registration-token-box{padding:var(--size-4);background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--border-radius);margin-bottom:var(--size-4)}.registration-token-box label{display:block;font-weight:var(--font-weight-6);color:var(--text-primary);margin-bottom:var(--size-2)}.registration-token-box .token-display{display:flex;align-items:center;gap:var(--size-2);padding:var(--size-2);background:var(--bg-elevated);border-radius:var(--border-radius-sm);margin-bottom:var(--size-2)}.registration-token-box code{flex:1;font-family:var(--font-mono);font-size:var(--font-size-1);color:var(--accent-primary);word-break:break-all}.registration-token-box small{display:block;font-size:var(--font-size-0);color:var(--text-muted)}.info-box{padding:var(--size-4);background:linear-gradient(135deg,hsl(var(--indigo-6-hsl) / .1),hsl(var(--violet-6-hsl) / .05));border:1px solid var(--accent-primary);border-radius:var(--border-radius);margin-bottom:var(--size-4)}.info-box p{margin:0 0 var(--size-2) 0;color:var(--text-primary);font-size:var(--font-size-1);line-height:1.6}.info-box p:last-child{margin-bottom:0}.info-box code{padding:var(--size-1) var(--size-2);background:var(--bg-tertiary);border-radius:var(--border-radius-sm);font-family:var(--font-mono);font-size:var(--font-size-0);color:var(--accent-primary)}.setup-info{text-align:center;color:var(--text-secondary);margin-bottom:var(--size-4);font-size:var(--font-size-1)}