@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";
:root{--bg-primary:#f7f9fc;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f0f4ff;--bg-sidebar:#fff;--bg-input:#f1f5f9;--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#5a6b85;--accent:#635bff;--accent-hover:#5349e6;--accent-soft:#635bff1a;--mint:#22cdb4;--mint-soft:#22cdb41a;--success:#22c55e;--success-soft:#22c55e1a;--danger:#ef4444;--danger-soft:#ef44441a;--warning:#f59e0b;--border:#e7edf5;--border-light:#d4dbe8;--shadow:0 10px 30px #06182c14, 0 2px 6px #06182c0f;--shadow-sm:0 2px 8px #06182c0f;--radius:14px;--radius-sm:10px;--radius-md:10px;--radius-lg:16px;--sidebar-width:280px;--header-height:64px;--transition:all .2s ease}*{box-sizing:border-box;margin:0;padding:0}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}html,body{background:var(--bg-primary);height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.6}a{color:var(--accent);transition:var(--transition);text-decoration:none}a:hover{color:var(--accent-hover)}button{cursor:pointer;font-family:inherit;font-size:inherit;transition:var(--transition);border:none;outline:none}input,textarea,select{font-family:inherit;font-size:inherit;transition:var(--transition);outline:none}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#c4cdd8;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.login-page{background:var(--bg-primary);background-image:radial-gradient(800px 200px at 20%,#635bff1a 0%,#0000 60%),radial-gradient(900px 280px at 80% 20%,#22cdb41a 0%,#0000 60%);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:420px;box-shadow:var(--shadow);padding:48px 40px}.login-logo{text-align:center;margin-bottom:36px}.login-logo-icon{margin-bottom:12px;font-size:48px}.login-logo h1{color:var(--text-primary);margin-bottom:4px;font-size:22px;font-weight:700}.login-logo p{color:var(--text-secondary);font-size:13px}.form-group{margin-bottom:20px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-input-wrap{position:relative}.form-input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);padding:12px 16px;font-size:15px}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.form-input::placeholder{color:var(--text-muted)}.password-toggle{color:var(--text-muted);background:0 0;padding:4px;font-size:18px;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.password-toggle:hover{color:var(--text-secondary)}.btn{border-radius:var(--radius-sm);transition:var(--transition);justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:14px;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--accent), var(--mint));color:#fff;width:100%}.btn-primary:hover{background:linear-gradient(135deg, var(--accent-hover), #1db8a0);transform:translateY(-1px);box-shadow:0 4px 16px #635bff4d}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.btn-success{background:var(--success);color:#fff}.btn-success:hover{filter:brightness(1.1)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{filter:brightness(1.1)}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border);background:0 0}.btn-ghost:hover{background:var(--bg-card);color:var(--text-primary);border-color:var(--border-light)}.btn-sm{padding:8px 16px;font-size:13px}.btn-icon{border-radius:var(--radius-sm);color:var(--text-muted);background:0 0;padding:8px;font-size:18px}.btn-icon:hover{background:var(--bg-card);color:var(--text-primary)}.login-error{background:var(--danger-soft);color:var(--danger);border-radius:var(--radius-sm);text-align:center;margin-bottom:20px;padding:12px 16px;font-size:13px}.app-layout{height:100vh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;display:flex;overflow:hidden;box-shadow:2px 0 12px #06182c0a}.sidebar-header{border-bottom:1px solid var(--border);padding:20px 20px 16px}.sidebar-brand{align-items:center;gap:12px;display:flex}.sidebar-brand-icon{font-size:28px}.sidebar-brand-text h2{color:var(--text-primary);font-size:15px;font-weight:700;line-height:1.2}.sidebar-brand-text p{color:var(--text-muted);margin-top:2px;font-size:11px}.sidebar-nav{flex:1;padding:12px 8px;overflow-y:auto}.sidebar-nav-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;padding:8px 12px;font-size:11px;font-weight:600}.sidebar-nav-item{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:var(--transition);text-align:left;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:10px 12px;font-size:14px;font-weight:500;display:flex}.sidebar-nav-item:hover{background:var(--accent-soft);color:var(--text-primary)}.sidebar-nav-item.active{background:var(--accent-soft);color:var(--accent)}.sidebar-nav-item-count{color:var(--text-muted);background:var(--bg-card);border-radius:10px;margin-left:auto;padding:2px 8px;font-size:12px}.sidebar-footer{border-top:1px solid var(--border);padding:12px}.sidebar-user{border-radius:var(--radius-sm);align-items:center;gap:10px;width:100%;padding:10px 12px;display:flex}.sidebar-user-avatar{background:linear-gradient(135deg, var(--accent), var(--mint));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;font-weight:700;display:flex;box-shadow:0 2px 8px #635bff33}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.sidebar-user-role{color:var(--text-muted);font-size:11px}.sidebar-logout{color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;padding:6px;font-size:18px}.sidebar-logout:hover{background:var(--danger-soft);color:var(--danger)}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.main-header{border-bottom:1px solid var(--border);background:var(--bg-primary);flex-shrink:0;align-items:center;gap:16px;padding:16px 32px;display:flex}.main-header h1{color:var(--text-primary);flex-shrink:0;font-size:20px;font-weight:700}.search-box{flex:1;max-width:480px;position:relative}.search-box input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);padding:10px 16px 10px 42px;font-size:14px}.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.search-box-icon{color:var(--text-muted);pointer-events:none;font-size:16px;position:absolute;top:50%;left:14px;transform:translateY(-50%)}.main-header-actions{gap:8px;margin-left:auto;display:flex}.main-body{flex:1;padding:24px 32px;overflow-y:auto}.templates-grid{flex-direction:column;gap:16px;display:flex}.template-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:24px;transition:all .3s}.template-card:hover{border-color:var(--border-light);box-shadow:var(--shadow);transform:translateY(-2px)}.template-card-header{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.template-card-title{color:var(--text-primary);font-size:16px;font-weight:600}.template-card-category{color:var(--accent);background:var(--accent-soft);white-space:nowrap;border-radius:20px;padding:3px 10px;font-size:11px;font-weight:500}.template-card-content{color:var(--text-secondary);white-space:pre-wrap;margin-bottom:16px;font-size:14px;line-height:1.7}.template-card-footer{justify-content:flex-start;align-items:center;gap:8px;display:flex}.btn-copy{background:linear-gradient(135deg, var(--accent), var(--mint));color:#fff;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);border:none;align-items:center;gap:8px;padding:10px 20px;font-size:13px;font-weight:600;display:inline-flex;box-shadow:0 2px 8px #635bff33}.btn-copy:hover{background:linear-gradient(135deg, var(--accent-hover), #1db8a0);transform:translateY(-1px);box-shadow:0 4px 16px #635bff4d}.btn-copy:active{transform:translateY(0)}.btn-copy.copied{background:var(--success);box-shadow:0 2px 8px #22c55e4d}.btn-favorite{cursor:pointer;border-radius:var(--radius-sm);transition:var(--transition);opacity:.5;background:0 0;border:none;padding:2px 6px;font-size:18px;line-height:1}.btn-favorite:hover,.btn-favorite.active{opacity:1;transform:scale(1.2)}.btn-note{color:var(--text-muted);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);background:0 0;align-items:center;gap:6px;padding:10px 16px;font-size:13px;font-weight:500;display:inline-flex}.btn-note:hover{border-color:var(--accent);color:var(--accent);background:#635bff0d}.btn-note.active{border-color:var(--accent);color:var(--accent);background:#635bff14}.note-area{border-radius:var(--radius-sm);background:#635bff0a;border:1px solid #635bff26;margin-bottom:12px;padding:12px}.note-textarea{width:100%;color:var(--text-primary);resize:vertical;background:0 0;border:none;outline:none;font-family:inherit;font-size:13px;line-height:1.6}.note-textarea::placeholder{color:var(--text-muted)}.note-status{color:var(--text-muted);text-align:right;margin-top:6px;font-size:11px}.note-preview{color:var(--text-muted);border-left:3px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;cursor:pointer;white-space:nowrap;text-overflow:ellipsis;background:#635bff0a;margin-bottom:12px;padding:8px 12px;font-size:12px;font-style:italic;overflow:hidden}.note-preview:hover{background:#635bff14}.sidebar-divider{background:var(--border);height:1px;margin:12px 16px}.admin-nav{border-bottom:1px solid var(--border);background:var(--bg-primary);gap:4px;padding:0 32px;display:flex}.admin-nav-item{color:var(--text-secondary);cursor:pointer;transition:var(--transition);background:0 0;border:none;border-bottom:2px solid #0000;padding:14px 20px;font-size:14px;font-weight:500}.admin-nav-item:hover{color:var(--text-primary)}.admin-nav-item.active{color:var(--accent);border-bottom-color:var(--accent)}.admin-table{border-collapse:collapse;width:100%}.admin-table th{text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);padding:12px 16px;font-size:12px;font-weight:600}.admin-table td{color:var(--text-secondary);border-bottom:1px solid var(--border);padding:14px 16px;font-size:14px}.admin-table tr:hover td{background:var(--bg-card)}.admin-table-actions{gap:4px;display:flex}.role-badge{border-radius:20px;align-items:center;gap:4px;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex}.role-badge.admin{background:var(--accent-soft);color:var(--accent)}.role-badge.reader{background:var(--success-soft);color:var(--success)}.modal-overlay{-webkit-backdrop-filter:saturate(160%)blur(12px);backdrop-filter:saturate(160%)blur(12px);z-index:1000;background:#1e293b66;justify-content:center;align-items:center;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);width:90%;max-width:560px;max-height:85vh;box-shadow:var(--shadow);padding:32px;animation:.2s slideUp;overflow-y:auto}.modal h2{margin-bottom:24px;font-size:18px;font-weight:700}.modal-actions{justify-content:flex-end;gap:12px;margin-top:24px;display:flex}.form-textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;min-height:160px;color:var(--text-primary);resize:vertical;padding:12px 16px;font-size:14px;line-height:1.6}.form-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.form-select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;padding:12px 16px;font-size:14px}.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.toast{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);box-shadow:var(--shadow);z-index:2000;align-items:center;gap:8px;padding:14px 24px;font-size:14px;font-weight:500;animation:.25s slideUp,.3s 2.5s forwards fadeOut;display:flex;position:fixed;bottom:24px;right:24px}.toast.success{border-left:3px solid var(--success)}.toast.error{border-left:3px solid var(--danger)}.empty-state{text-align:center;color:var(--text-muted);padding:64px 24px}.empty-state-icon{margin-bottom:16px;font-size:48px}.empty-state h3{color:var(--text-secondary);margin-bottom:8px;font-size:18px}.empty-state p{font-size:14px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}.mobile-menu-btn{color:var(--text-primary);cursor:pointer;background:0 0;border:none;padding:4px;font-size:24px;display:none}.sidebar-overlay{display:none}@media (max-width:768px){.sidebar{z-index:100;transition:left .3s;position:fixed;top:0;bottom:0;left:-100%}.sidebar.open{left:0}.sidebar-overlay{z-index:99;background:#1e293b4d;display:none;position:fixed;inset:0}.sidebar-overlay.open,.mobile-menu-btn{display:block}.main-header{padding:12px 16px}.main-body{padding:16px}.login-card{margin:16px;padding:32px 24px}.modal{width:95%;padding:24px}.admin-nav{padding:0 16px;overflow-x:auto}}.sidebar-nav-item.category-hidden{opacity:.7;border-left:2px solid var(--warning);padding-left:14px}.sidebar-nav-item.category-hidden:hover{opacity:1;background:#ffa50214}.sidebar-nav-item.category-hidden.active{opacity:1;border-left-color:var(--warning);background:#ffa5021f}.rich-text-container{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-card);overflow:hidden}.quill-loading{color:var(--text-muted);text-align:center;padding:16px}.ql-toolbar.ql-snow{background:var(--bg-input);font-family:inherit;border:none!important;border-bottom:1px solid var(--border)!important}.ql-container.ql-snow{min-height:250px;font-family:inherit;font-size:14px;border:none!important}.ql-editor{min-height:250px;color:var(--text-primary)}.ql-editor img{border-radius:var(--radius-md);max-width:100%;margin:10px 0}.ql-snow .ql-picker-options{z-index:1000!important}.test-card{background:var(--bg-card);border:1px solid var(--accent);border-radius:var(--radius);transition:var(--transition);flex-direction:column;display:flex;overflow:hidden;box-shadow:0 4px 20px #6c5ce70d}.test-card:hover{border-color:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 30px #6c5ce71a}.test-card-header{border-bottom:1px solid var(--border);background:#6c5ce708;justify-content:space-between;align-items:center;padding:20px;display:flex}.test-card-title{color:var(--text-primary);align-items:center;gap:8px;font-size:16px;font-weight:600;display:flex}.test-card-content{color:var(--text-secondary);flex-grow:1;padding:20px;font-size:14px}.test-card-footer{border-top:1px solid var(--border);background:var(--bg-card);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.test-page-container{max-width:800px;margin:0 auto;padding:40px 20px}.test-welcome{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow);padding:40px}.test-welcome h1{color:var(--text-primary);margin-bottom:16px;font-size:28px;font-weight:700}.test-welcome p{color:var(--text-secondary);margin-bottom:32px;font-size:16px;line-height:1.6}.test-timer{background:var(--bg-card);border:1px solid var(--border);color:var(--accent);box-shadow:var(--shadow-sm);z-index:10;border-radius:30px;align-items:center;gap:8px;margin-bottom:24px;padding:8px 16px;font-family:monospace;font-size:18px;font-weight:600;display:inline-flex;position:sticky;top:80px}.test-question{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:24px;padding:24px}.test-question-title{color:var(--text-primary);margin-bottom:20px;font-size:18px;font-weight:600;line-height:1.5}.test-options-list{flex-direction:column;gap:12px;display:flex}.test-option-label{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);color:var(--text-primary);align-items:center;gap:12px;padding:16px;font-size:15px;display:flex}.test-option-label:hover{border-color:var(--accent);background:#6c5ce70d}.test-option-label.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:#6c5ce71a}.test-option-input{accent-color:var(--accent);cursor:pointer;width:18px;height:18px}.test-result-screen{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow);padding:48px 32px}.test-result-score{color:var(--success);text-shadow:0 0 20px #00b89433;margin:24px 0;font-size:64px;font-weight:800}.test-actions{justify-content:center;gap:16px;margin-top:32px;display:flex}.question-builder-item{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:16px;padding:16px}.question-builder-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.question-builder-option{align-items:center;gap:12px;margin-top:8px;display:flex}.correct-answer-indicator{color:var(--success);font-weight:700}.wrong-answer-indicator{color:var(--danger);font-weight:700}.template-card-content-wrapper{transition:max-height .3s;position:relative}.template-card-content-wrapper.clamped{max-height:100px;overflow:hidden}.template-card-content-wrapper.clamped:after{content:"";background:linear-gradient(to bottom, transparent, var(--bg-card));pointer-events:none;height:60px;position:absolute;bottom:0;left:0;right:0}.btn-expand{color:var(--accent);cursor:pointer;text-align:left;width:100%;transition:var(--transition);background:0 0;border:none;padding:8px 0 16px;font-size:13px;font-weight:500}.btn-expand:hover{text-decoration:underline}