:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-light: #eff6ff;--background: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--text-secondary: #64748b;--muted: #94a3b8;--success: #16a34a;--warning: #f59e0b;--danger: #dc2626;--info: #0ea5e9;--purple: #7c3aed;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--sidebar-width: 250px;--sidebar-collapsed-width: 72px;--topbar-height: 64px;--bs-body-font-family: "Inter", "Noto Sans Lao", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}body{font-family:Inter,Noto Sans Lao,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--background);color:var(--text);font-size:14px;line-height:22px}html[lang=lo] body,body.locale-lo{font-family:Noto Sans Lao,Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}h1,.page-title{font-size:28px;line-height:32px;font-weight:700}h2,.section-title{font-size:20px;line-height:28px;font-weight:600}h5,.card-title{font-size:16px;line-height:24px;font-weight:600}.small,small{font-size:12px;line-height:18px}.text-secondary{color:var(--text-secondary)!important}.text-muted{color:var(--muted)!important}.btn-primary{--bs-btn-bg: var(--primary);--bs-btn-border-color: var(--primary);--bs-btn-hover-bg: var(--primary-dark);--bs-btn-hover-border-color: var(--primary-dark);--bs-btn-active-bg: var(--primary-dark);--bs-btn-active-border-color: var(--primary-dark)}.btn{border-radius:var(--radius-sm);font-weight:500}.card{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--surface);box-shadow:none}.card-header{background:transparent;border-bottom:1px solid var(--border);font-weight:600}.form-control,.form-select{border-radius:var(--radius-sm);border-color:var(--border);font-size:14px}.form-control:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.form-label{font-weight:500;margin-bottom:4px}.table{font-size:14px}.table th{color:var(--text-secondary);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em;border-bottom-color:var(--border);white-space:nowrap}.table td{vertical-align:middle;border-bottom-color:var(--border)}.badge{font-weight:500;border-radius:999px;padding:4px 10px}.modal-content{border-radius:var(--radius-lg);border:1px solid var(--border)}.modal-footer{position:sticky;bottom:0;z-index:2;background:var(--surface);border-bottom-left-radius:var(--radius-lg);border-bottom-right-radius:var(--radius-lg)}.dropdown-menu{border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:0 8px 24px #0f172a14}.status-badge{display:inline-flex;align-items:center;gap:4px}.app-shell{display:flex;min-height:100vh}.app-sidebar{width:var(--sidebar-width);min-height:100vh;background:var(--surface);border-right:1px solid var(--border);position:fixed;top:0;left:0;bottom:0;z-index:1030;display:flex;flex-direction:column;transition:width .2s ease,transform .2s ease;overflow-y:auto;overflow-x:hidden}.app-sidebar.collapsed{width:var(--sidebar-collapsed-width)}.app-sidebar .brand{height:var(--topbar-height);display:flex;align-items:center;padding:0 20px;font-weight:800;font-size:18px;color:var(--primary);white-space:nowrap;text-decoration:none}.sidebar-section{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:16px 20px 6px;white-space:nowrap}.app-sidebar.collapsed .sidebar-section{visibility:hidden;height:10px;padding:6px 0}.sidebar-link{display:flex;align-items:center;gap:12px;padding:9px 20px;color:var(--text-secondary);text-decoration:none;font-weight:500;white-space:nowrap;border-left:3px solid transparent;transition:background .15s ease,color .15s ease}.sidebar-link i{font-size:17px;width:20px;text-align:center;flex-shrink:0}.sidebar-link:hover{color:var(--text);background:var(--background)}.sidebar-link.router-link-active,.sidebar-link.active{color:var(--primary);background:var(--primary-light);border-left-color:var(--primary)}.app-sidebar.collapsed .sidebar-link span{display:none}.app-main{flex:1;margin-left:var(--sidebar-width);min-width:0;transition:margin-left .2s ease;display:flex;flex-direction:column}.app-main.collapsed{margin-left:var(--sidebar-collapsed-width)}.app-topbar{height:var(--topbar-height);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;padding:0 24px;position:sticky;top:0;z-index:1020}.app-content{padding:24px;flex:1}.kpi-card{padding:20px}.kpi-card .kpi-icon{width:44px;height:44px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.kpi-card .kpi-value{font-size:24px;font-weight:700;line-height:30px}.kpi-card .kpi-label{color:var(--text-secondary);font-size:13px}.timeline-item{display:flex;gap:16px;position:relative;padding-bottom:20px}.timeline-item:last-child{padding-bottom:0}.timeline-time{min-width:96px;text-align:right;color:var(--text-secondary);font-size:13px;font-weight:500}.timeline-dot{width:10px;height:10px;border-radius:50%;background:var(--primary);margin-top:5px;flex-shrink:0;position:relative}.timeline-item:not(:last-child) .timeline-dot:after{content:"";position:absolute;top:12px;left:4px;bottom:-20px;width:2px;background:var(--border);height:calc(100% + 24px)}.drawer-backdrop{position:fixed;inset:0;background:#0f172a66;z-index:1040}.event-drawer{position:fixed;top:0;right:0;bottom:0;width:400px;max-width:92vw;background:var(--surface);border-left:1px solid var(--border);z-index:1050;overflow-y:auto;box-shadow:-12px 0 32px #0f172a1a;animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.fc{font-size:13px;--fc-border-color: var(--border);--fc-today-bg-color: var(--primary-light)}.fc .fc-button{background:var(--surface);color:var(--text-secondary);border:1px solid var(--border);font-weight:500;text-transform:capitalize}.fc .fc-button:hover{background:var(--background);color:var(--text);border-color:var(--border)}.fc .fc-button-primary:not(:disabled).fc-button-active,.fc .fc-button-primary:not(:disabled):active{background:var(--primary);border-color:var(--primary);color:#fff}.fc .fc-toolbar-title{font-size:20px;font-weight:700}.fc-event{border-radius:6px;border:none;padding:1px 4px;font-size:12px;cursor:pointer}.skeleton{background:linear-gradient(90deg,#edf2f7 25%,#f8fafc,#edf2f7 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.empty-state{text-align:center;padding:48px 24px;color:var(--text-secondary)}.empty-state i{font-size:40px;color:var(--muted);display:block;margin-bottom:12px}.course-cover{aspect-ratio:16 / 9;background:linear-gradient(135deg,var(--primary-light),#dbeafe);border-radius:var(--radius-lg) var(--radius-lg) 0 0;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:40px;overflow:hidden}.course-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.course-cover-zoom{position:relative;cursor:zoom-in}.course-cover-zoom:hover img{transform:scale(1.04)}.course-cover-hint{position:absolute;top:10px;right:10px;display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:#0f172a8c;color:#fff;font-size:1rem;opacity:0;transition:opacity .2s ease}.course-cover-zoom:hover .course-cover-hint{opacity:1}.mobile-bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);z-index:1030}.mobile-bottom-nav a{flex:1;text-align:center;padding:8px 0 10px;color:var(--text-secondary);text-decoration:none;font-size:11px}.mobile-bottom-nav a i{display:block;font-size:20px;margin-bottom:2px}.mobile-bottom-nav a.router-link-active{color:var(--primary)}@media(max-width:991.98px){.app-sidebar{transform:translate(-100%)}.app-sidebar.mobile-open{transform:translate(0)}.app-main{margin-left:0!important}.mobile-bottom-nav{display:flex}.app-content{padding:16px 16px 84px}}@media(max-width:767.98px){.fc .fc-toolbar.fc-header-toolbar{flex-direction:column;gap:8px;align-items:stretch}.fc .fc-toolbar-chunk{display:flex;justify-content:center}.fc .fc-toolbar-title{font-size:16px;text-align:center}.fc .fc-button{padding:4px 10px;font-size:12px}.page-header{flex-direction:column;align-items:stretch}.page-title{font-size:22px;line-height:28px}.event-drawer{width:100vw;max-width:100vw;border-left:none}.modal-dialog{--bs-modal-margin: 12px}}.cursor-pointer{cursor:pointer}.fw-600{font-weight:600}.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}a{color:var(--primary)}a:hover{color:var(--primary-dark)}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.public-hero{background:linear-gradient(180deg,#eff6ff,#f8fafc);padding:72px 0}.public-navbar{background:var(--surface);border-bottom:1px solid var(--border)}.step-indicator{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.step-indicator .step{display:flex;align-items:center;gap:8px;color:var(--muted);font-weight:500;font-size:13px}.step-indicator .step .num{width:26px;height:26px;border-radius:50%;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:12px}.step-indicator .step.active{color:var(--primary)}.step-indicator .step.active .num{border-color:var(--primary);background:var(--primary);color:#fff}.step-indicator .step.done{color:var(--success)}.step-indicator .step.done .num{border-color:var(--success);background:var(--success);color:#fff}