:root{--bg:#f6f4ec;--bg-alt:#eae6d6;--ink:#0e2e2f;--header-end:#1f5c56;--accent:#d9a441;--accent1:#c9d1d9;--accent1-hover:#dadde0;--accent-light:#e9c077;--accent-hover:#b98329;--accent-soft:#f1e0b8;--accent-text:#6b4e17;--muted:#71685a;--line:#e3dcc7}body{background:var(--bg);color:var(--ink);font-family:var(--font-inter), sans-serif}h1,h2,h3,h4,h5,h6{font-family:var(--font-sora), sans-serif}a{transition:color .15s,background .15s}.ch-header{background:linear-gradient(100deg, var(--ink), var(--header-end))}.ch-logo-badge{width:48px;height:48px;color:var(--ink);background:linear-gradient(135deg, var(--accent), var(--accent-light));border-radius:14px;justify-content:center;align-items:center;font-size:18px;font-weight:800;display:inline-flex;box-shadow:0 10px 25px #0000004d}.ch-brand-title{color:#fff}.ch-brand-subtitle{color:#ffffffa6;letter-spacing:.5px}.ch-nav-link{color:#ffffffd9;font-size:14px;font-weight:500;text-decoration:none}.ch-nav-link:hover{color:#fff}.ch-nav-pill{color:#ffffffd9;background:#ffffff0f;border:1px solid #ffffff2e;border-radius:999px;align-items:center;gap:6px;padding:9px 16px;font-size:13.5px;font-weight:600;text-decoration:none;transition:background .15s;display:inline-flex}.ch-nav-pill:hover{color:#fff;background:#ffffff24}.ch-nav-pill.active{background:var(--accent);color:var(--ink);border-color:var(--accent)}.ch-user-name{color:#ffffffd9;font-size:14px;font-weight:500}.ch-navbar-toggler{background:0 0;border:1px solid #ffffff59}.ch-navbar-toggler:focus{box-shadow:0 0 0 2px var(--accent)}.ch-dropdown-menu{border:1px solid var(--line);border-radius:12px;padding:6px;box-shadow:0 20px 40px -20px #14100a40}.ch-dropdown-menu .dropdown-item{border-radius:8px;padding:8px 12px;font-size:14px}.ch-dropdown-menu .dropdown-item:hover,.ch-dropdown-menu .dropdown-item:focus{background:var(--accent-soft);color:var(--accent-text)}.ch-main-content{background:var(--bg)}.ch-btn{cursor:pointer;border:none;border-radius:999px;align-items:center;gap:8px;padding:10px 20px;font-size:15px;font-weight:600;text-decoration:none;transition:background .15s;display:inline-flex}.ch-btn-accent{background:var(--accent);color:var(--ink)}.ch-btn-accent:hover{background:var(--accent-hover);color:var(--ink)}.ch-btn-accent1{background:var(--accent1);color:var(--ink)}.ch-btn-accent1:hover{background:var(--accent1-hover);color:var(--ink)}.ch-btn-dark{background:var(--ink);color:#fff}.ch-btn-dark:hover{background:var(--header-end);color:#fff}.ch-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ch-badge-pill{background:var(--accent-soft);color:var(--accent-text);border-radius:999px;padding:7px 16px;font-size:12px;font-weight:600;display:inline-block}.ch-hero-title{letter-spacing:-.01em}.ch-hero-lead{color:var(--muted);max-width:480px}.ch-sync-card{border:1px solid var(--line);background:#fff;border-radius:20px;box-shadow:0 30px 60px -20px #14100a2e}.ch-live-tag{font-family:var(--font-mono), monospace;color:#2f7a45;background:#eaf4ec;border-radius:999px;padding:4px 10px;font-size:10.5px;font-weight:500}.ch-sync-body{height:260px;position:relative}.ch-course-node{background:var(--ink);color:#fff;border-radius:14px;width:150px;padding:16px;position:absolute;top:50%;left:0;transform:translateY(-50%)}.ch-course-node-k{font-family:var(--font-mono), monospace;color:#ffffffa6;letter-spacing:.08em;text-transform:uppercase;font-size:9.5px}.ch-course-node-v{margin-top:6px;font-size:13.5px;font-weight:600}.ch-portal-col{flex-direction:column;justify-content:space-between;width:168px;display:flex;position:absolute;top:0;bottom:0;right:0}.ch-portal-chip{background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;align-items:center;gap:10px;padding:10px 12px;font-size:12.5px;font-weight:600;display:flex}.ch-portal-dot{background:var(--accent);border-radius:50%;flex:none;width:8px;height:8px;animation:1.8s ease-in-out infinite ch-pulse}@keyframes ch-pulse{0%,to{opacity:.4;transform:scale(1)}50%{opacity:1;transform:scale(1.4)}}@media (prefers-reduced-motion:reduce){.ch-portal-dot{opacity:.9;animation:none}}.ch-connector{width:100%;height:100%;position:absolute;top:0;left:0}.ch-connector path{stroke:var(--accent);stroke-width:1.6px;fill:none;stroke-dasharray:4 5;opacity:.55}@media (max-width:480px){.ch-sync-body{flex-direction:column;gap:14px;height:auto;display:flex}.ch-course-node,.ch-portal-col{width:100%;position:static;transform:none}.ch-connector{display:none}}.ch-section-title{font-size:32px}.ch-section-sub{color:var(--muted)}.ch-feature-card{border:1px solid var(--line);background:#fff;border-radius:16px;padding:26px;transition:transform .15s,box-shadow .15s}.ch-feature-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px -18px #14100a40}.ch-feature-icon{background:var(--accent-soft);border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;font-size:20px;display:flex}.ch-feature-text{color:var(--muted);font-size:13.8px}.ch-workflow-strip{border:1px solid var(--line);background:#fff;border-radius:20px;padding:34px 0}.ch-wf-step{padding:0 16px;position:relative}.ch-wf-step-divider:after{content:"";background:var(--line);width:1px;height:calc(100% - 8px);position:absolute;top:4px;right:0}.ch-wf-num{font-family:var(--font-mono), monospace;color:var(--accent-text);font-size:11px;font-weight:500}.ch-wf-text{color:var(--muted);font-size:12.8px}@media (max-width:767px){.ch-wf-step-divider:after{display:none}.ch-wf-step{margin-bottom:20px}}.ch-cta-card{background:linear-gradient(100deg, var(--ink), var(--header-end));color:#fff;border-radius:24px}.ch-cta-sub{color:#ffffffb3}.ch-label{color:var(--ink);margin-bottom:6px;font-size:14px;font-weight:600;display:block}.ch-input{border:1px solid var(--line);width:100%;font-size:14px;font-family:var(--font-inter), sans-serif;color:var(--ink);background:#fff;border-radius:10px;padding:9px 12px}.ch-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.ch-auth-sub{color:var(--muted);font-size:14px}.ch-sidebar{background:linear-gradient(180deg, var(--ink), var(--header-end));color:#fff;flex-shrink:0;width:250px;transition:width .18s;position:relative}.ch-sidebar.collapsed{width:68px}.ch-sidebar-toggle{background:var(--accent);width:28px;height:28px;color:var(--ink);border:2px solid var(--bg);cursor:pointer;z-index:5;border-radius:50%;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex;position:absolute;top:16px;right:-14px}.ch-sidebar-label{white-space:nowrap;transition:opacity .12s}.ch-sidebar.collapsed .ch-sidebar-label{opacity:0;width:0;display:inline-block;overflow:hidden}.ch-sidebar-brand{color:#fff;align-items:center;gap:4px;font-size:15px;display:flex}.ch-logo-badge-sm{border-radius:9px;width:32px;height:32px;font-size:13px}.ch-sidebar-link{color:#ffffffbf;border-radius:10px;align-items:center;gap:10px;padding:10px 14px;font-size:14px;font-weight:500;text-decoration:none;transition:background .15s,color .15s;display:flex}.ch-sidebar-link:hover{color:#fff;background:#ffffff14}.ch-sidebar-link-active{background:var(--accent);color:var(--ink);font-weight:600}.ch-sidebar-link-active:hover{background:var(--accent-hover);color:var(--ink)}.ch-sidebar-icon{font-size:16px;line-height:1}.ch-card{border:1px solid var(--line);background:#fff;border-radius:16px}.ch-btn-ghost{color:var(--ink);border:1px solid var(--line);background:0 0}.ch-btn-ghost:hover{background:var(--bg-alt)}.ch-btn-ghost:disabled{opacity:.4;cursor:not-allowed}.ch-btn-danger{color:#fff;background:#c0433a}.ch-btn-danger:hover{background:#a5372f}.ch-btn-success{color:#fff;background:#2f7a45}.ch-btn-success:hover{background:#256b39}.ch-table{border-collapse:collapse;width:100%;font-size:16px}.ch-table thead th{text-align:left;font-family:var(--font-mono), monospace;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-bottom:1px solid var(--line);padding:12px 24px;font-size:15px;font-weight:500}.ch-table tbody td{border-bottom:1px solid var(--line);vertical-align:middle;padding:16px 24px}.ch-table tbody tr:last-child td{border-bottom:none}.ch-table tbody tr:hover{background:#fbf9f3}.ch-u-name{font-weight:600}.ch-u-email{color:var(--muted)}.ch-pagination-row{justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.ch-page-info{color:var(--muted);font-size:13px}.ch-badge{border-radius:999px;padding:4px 11px;font-size:11.5px;font-weight:600;display:inline-block}.ch-badge-super{background:var(--ink);color:#fff}.ch-badge-admin{background:var(--accent-soft);color:var(--accent-text)}.ch-badge-user{background:var(--bg-alt);color:var(--muted)}.ch-badge-active{color:#2f7a45;background:#e4f3e6}.ch-badge-inactive{color:#9a5a26;background:#f5e9de}.ch-badge-review{background:var(--accent-soft);color:var(--accent-text)}.ch-icon-btn{border:1px solid var(--line);cursor:pointer;color:var(--ink);font-size:13.5px;font-weight:600;font-family:var(--font-inter), sans-serif;background:#fff;border-radius:8px;padding:6px 13px}.ch-icon-btn:hover{background:var(--bg-alt)}.ch-icon-btn-danger{color:#c0433a;border-color:#f0d3cf}.ch-icon-btn-danger:hover{background:#fbecea}.ch-icon-btn-success{color:#2f7a45;border-color:#cfe9d4}.ch-icon-btn-success:hover{background:#e4f3e6}.ch-icon-btn:disabled{opacity:.4;cursor:not-allowed}.ch-tabs{background:var(--bg-alt);border-radius:999px;gap:6px;padding:6px;display:inline-flex}.ch-tab{color:var(--muted);cursor:pointer;font-size:13.5px;font-weight:600;font-family:var(--font-inter), sans-serif;background:0 0;border:none;border-radius:999px;padding:9px 20px}.ch-tab.active{color:var(--ink);background:#fff;box-shadow:0 2px 6px #14100a1a}.ch-tab:disabled{opacity:.45;cursor:not-allowed}.ch-autocomplete{position:relative}.ch-dropdown-panel{border:1px solid var(--line);z-index:20;background:#fff;border-radius:12px;max-height:250px;position:absolute;top:calc(100% + 4px);left:0;right:0;overflow:hidden auto;box-shadow:0 20px 40px -20px #14100a40}.ch-dropdown-item{cursor:pointer;border-bottom:1px solid var(--line);text-align:left;background:#fff;border-top:none;border-left:none;border-right:none;width:100%;padding:10px 14px}.ch-dropdown-item:last-child{border-bottom:none}.ch-dropdown-item:hover{background:var(--accent-soft)}.ch-dropdown-item strong{font-size:13.5px;display:block}.ch-dropdown-item small{color:var(--muted);font-size:12px;display:block}.ch-upload-zone{border:1.5px dashed var(--line);text-align:center;background:var(--bg-alt);border-radius:14px;padding:22px}.ch-upload-zone img{border-radius:10px;max-height:220px;margin-bottom:12px}.ch-upload-zone input[type=file]{background:0 0}.ch-upload-hint{color:var(--muted);margin-top:8px;font-size:12px}.ch-item-card{background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;padding:16px}.ch-empty-state{text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:12px;padding:24px;font-size:14px}.swal2-popup{border:1px solid var(--line);font-family:var(--font-inter), sans-serif!important;border-radius:18px!important}.swal2-title{font-family:var(--font-sora), sans-serif!important;color:var(--ink)!important;font-size:20px!important}.swal2-html-container{color:var(--muted)!important;font-size:14px!important}.swal2-confirm{background:var(--accent)!important;color:var(--ink)!important;box-shadow:none!important;border-radius:999px!important;padding:10px 24px!important;font-weight:600!important}.swal2-confirm:focus{box-shadow:0 0 0 3px var(--accent-soft)!important}.swal2-cancel{color:var(--ink)!important;border:1px solid var(--line)!important;box-shadow:none!important;background:0 0!important;border-radius:999px!important;padding:10px 24px!important;font-weight:600!important}.swal2-icon.swal2-warning{border-color:var(--accent)!important;color:var(--accent-text)!important}.swal2-icon.swal2-success [class^=swal2-success-line]{background-color:#2f7a45!important}.swal2-icon.swal2-success .swal2-success-ring{border-color:#e4f3e6!important}.swal2-icon.swal2-error{color:#c0433a!important;border-color:#c0433a!important}.swal2-toast{border:1px solid var(--line)!important;border-radius:14px!important;box-shadow:0 20px 40px -20px #14100a4d!important}.swal2-toast .swal2-title{font-size:14px!important}.swal2-timer-progress-bar{background:var(--accent)!important}.jodit-container:not(.jodit_inline){overflow:hidden;border:1px solid var(--line)!important;border-radius:12px!important}.jodit-toolbar__box{background:var(--bg-alt)!important;border-bottom:1px solid var(--line)!important}.jodit-wysiwyg{font-family:var(--font-inter), sans-serif!important}.ch-code{font-family:var(--font-mono), monospace;background:var(--bg-alt);color:var(--ink);word-break:break-all;border-radius:8px;padding:3px 8px;font-size:12.5px}.ch-input:read-only{background:var(--bg-alt);cursor:default}.ch-input-group{align-items:stretch;display:flex}.ch-input-group .ch-input{border-right:none;border-radius:10px 0 0 10px}.ch-copy-btn{border:1px solid var(--line);background:var(--bg-alt);color:var(--ink);cursor:pointer;white-space:nowrap;border-left:none;border-radius:0 10px 10px 0;align-items:center;padding:0 16px;font-size:13.5px;font-weight:600;transition:background .15s;display:flex}.ch-copy-btn:hover{background:var(--accent-soft)}.ch-alert-warning{background:var(--accent-soft);color:var(--accent-text);border-radius:10px;padding:12px 16px;font-size:13.5px}.ch-warn-icon{background:var(--accent-soft);width:52px;height:52px;color:var(--accent-text);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 14px;font-size:24px;display:flex}.ch-overlay{z-index:1050;background:#0e2e2f73;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.ch-modal{background:#fff;border-radius:18px;width:420px;max-width:100%;overflow:hidden;box-shadow:0 30px 60px -20px #14100a59}.ch-modal-sm{width:380px}.ch-modal-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:18px 22px;display:flex}.ch-modal-header h5{font-size:16px;font-weight:700}.ch-modal-close{color:var(--muted);cursor:pointer;background:0 0;border:none;font-size:18px;line-height:1}.ch-modal-body{padding:20px 22px}.ch-modal-footer{border-top:1px solid var(--line);justify-content:flex-end;gap:10px;padding:16px 22px;display:flex}.ch-field{margin-bottom:14px}.ch-check{align-items:center;gap:8px;margin-bottom:8px;font-size:14px;display:flex}.ch-check input{accent-color:var(--accent);width:16px;height:16px}.ch-delete-icon{color:#c0433a;background:#fbecea;border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;margin:0 auto 14px;font-size:24px;display:flex}.ch-footer{color:var(--muted);border-top:1px solid var(--line);padding:18px 0;font-size:13px}