@import"https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap";:root{--ink: #223d38;--green: #246c52;--muted: #85908a;--line: #e6eae3;--cream: #f7f8f3}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:14px Be Vietnam Pro,sans-serif}button,input,select,textarea{font:inherit}button,a,select{cursor:pointer}button{border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);padding:10px 15px}button:hover{background:#edf3eb}button.primary{background:var(--green);color:#fff;border-color:var(--green)}aside{position:fixed;width:235px;background:#fff;height:100vh;border-right:1px solid var(--line);padding:34px 20px;display:flex;flex-direction:column}.brand{display:flex;gap:10px;font-size:29px;color:var(--green);text-decoration:none;font-weight:800}.brand span{font-size:23px;letter-spacing:-1px}.brand small{display:block;font-size:8px;letter-spacing:1.6px;margin-top:7px;font-weight:500}.workspace{font-size:10px;letter-spacing:1.5px;color:var(--muted);margin:45px 12px 15px}nav button{display:block;width:100%;text-align:left;border:0;margin:5px 0;padding:13px 15px;color:#77847c;background:transparent}nav button.active{background:#eaf2e9;color:var(--green);font-weight:600}nav button span{display:inline-block;width:29px;font-size:18px}.aside-bottom{margin-top:auto}.leaf{border-radius:12px;background:#f4f5ec;padding:20px;font-size:16px;line-height:1.8;color:#8b9575;margin-bottom:20px}.profile{border-top:1px solid var(--line);padding-top:20px;margin-top:20px;display:flex;gap:12px;align-items:center}.profile b{border-radius:50%;background:#e9ede0;padding:12px;font-size:12px}.profile small{display:block;color:var(--muted);font-size:10px;margin-top:6px}main{margin-left:235px}header{height:80px;display:flex;justify-content:space-between;align-items:center;padding:0 40px;background:#ffffffb0;border-bottom:1px solid var(--line);font-size:12px}select{background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px;color:var(--ink)}.muted{color:var(--muted)}.demo{margin:20px 40px 0;font-size:9px;color:#96733e;letter-spacing:1px}.demo span{letter-spacing:0;margin-left:10px;color:#939388}#app{padding:28px 40px;max-width:1500px;margin:auto}h1{font-size:30px;font-weight:600;letter-spacing:-1.1px;margin:0 0 10px}h2{font-size:17px;margin:0;font-weight:600}h3{font-size:15px}.subtitle{color:var(--muted);font-size:12px;line-height:1.8}.title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;gap:15px}.eyebrow{color:var(--green);font-size:10px;letter-spacing:1.7px;margin-bottom:12px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:28px}.stat,.panel,.group{background:#fff;border:1px solid var(--line);border-radius:12px}.stat{padding:22px}.stat .label{color:#7b8980;font-size:11px}.stat strong{display:block;font-size:29px;font-weight:500;margin:17px 0 10px;letter-spacing:-1px}.stat i{float:right;background:#f0f4ec;border-radius:8px;font-style:normal;padding:7px;color:var(--green)}.grid{display:grid;grid-template-columns:1.65fr 1fr;gap:24px}.panel{padding:24px;margin-bottom:24px}.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.text-btn{border:0;padding:0;color:var(--green);font-size:11px;background:transparent}.badge{display:inline-block;background:#edf3e9;color:#5d7950;font-size:10px;border-radius:5px;padding:5px 8px}.badge.amber{background:#fbf1dd;color:#a68448}.badge.gray{background:#f1f2ee;color:#8b9187}.session{display:flex;gap:18px;padding:19px 0;border-top:1px solid var(--line);align-items:center}.time{min-width:60px;font-weight:600;font-size:14px}.time small{display:block;font-size:10px;color:var(--muted);margin-top:7px;font-weight:400}.session-info{flex:1;border-left:3px solid #91ad78;padding-left:17px}.session-info h3{margin:0 0 8px}.session-info p{font-size:11px;color:var(--muted);margin:0;line-height:1.7}.session button{font-size:11px}.notice{display:flex;gap:13px;margin:23px 0}.notice .icon{background:#fbf1df;color:#b89257;border-radius:9px;height:35px;min-width:35px;text-align:center;padding-top:9px}.notice p{margin:0;font-size:12px;line-height:1.6}.notice small{color:var(--muted);display:block;font-size:10px;margin-top:6px}.chart{display:flex;height:140px;align-items:end;gap:20px;margin:25px 0 10px;padding-bottom:23px;border-bottom:1px solid var(--line)}.bar{flex:1;background:#b3cba3;border-radius:5px 5px 0 0;position:relative;min-width:15px}.bar:last-child{background:var(--green)}.bar span{position:absolute;bottom:-21px;left:0;font-size:9px;color:var(--muted);white-space:nowrap}.wide-chart{height:200px}.group-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.group{padding:23px}.group-icon{font-size:23px;background:#edf3e9;display:inline-block;border-radius:10px;padding:12px;color:var(--green)}.group p{font-size:12px;line-height:1.9;color:var(--muted)}.group-bottom{border-top:1px solid var(--line);padding-top:15px;display:flex;justify-content:space-between;align-items:center;font-size:11px}.toolbar{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}input,textarea{border:1px solid #dce3d8;border-radius:7px;padding:11px;background:#fff;color:var(--ink);max-width:100%}input:focus,textarea:focus{outline:2px solid #abc7a5}.toolbar input{flex:1;min-width:180px}table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}th{font-size:10px;color:var(--muted);font-weight:500;background:#f8faf5}td,th{padding:15px 12px;border-bottom:1px solid var(--line)}td button{font-size:10px;padding:7px}.avatar{display:inline-grid;place-items:center;width:32px;height:32px;background:#eef1e5;color:#7e9065;border-radius:50%;margin-right:10px;font-size:10px}.table-wrap{overflow:auto}.code{font-size:38px;letter-spacing:10px;font-weight:700;color:var(--green);margin:20px 0}.empty{padding:30px;color:var(--muted);text-align:center}.settings-row{padding:18px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:20px}.settings-row p{font-size:12px;color:var(--muted)}footer{padding:20px 40px;border-top:1px solid var(--line);color:#8d978a;font-size:10px}footer span{float:right}dialog{border:0;border-radius:15px;padding:28px;width:480px;max-width:94vw;box-shadow:0 20px 90px #18352d30}dialog::backdrop{background:#213c3855}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-head button{border:0}label{display:block;font-size:12px;margin:15px 0}label input,label select,label textarea{display:block;width:100%;margin-top:9px}#toast{display:none;position:fixed;bottom:25px;right:25px;background:var(--ink);color:#fff;padding:16px 24px;border-radius:10px;z-index:5}.progress{height:7px;background:#eef1e9;border-radius:6px;margin-top:10px}.progress span{display:block;background:#93b17c;height:100%;border-radius:6px}.hint{font-size:11px;line-height:1.8;color:var(--muted);margin-top:15px}@media(min-width:1500px){#app{padding-top:40px}}@media(max-width:1100px){.grid{grid-template-columns:1fr}.group-grid{grid-template-columns:repeat(2,1fr)}.stats{gap:10px}.stat{padding:16px}.stat strong{font-size:24px}aside{width:200px}main{margin-left:200px}#app{padding:25px}.demo{margin-left:25px}}@media(max-width:720px){aside{position:static;width:auto;height:auto;padding:18px}.brand{font-size:20px}.workspace,.aside-bottom{display:none}nav{display:flex;overflow:auto;margin-top:15px}nav button{white-space:nowrap;width:auto;padding:10px;font-size:11px}nav button span{width:20px}main{margin:0}header{height:60px;padding:12px 18px}header>span{display:none}header select{margin-left:auto}.demo{margin:15px 18px 0;line-height:1.8}.demo span{display:block;margin-left:0}#app{padding:22px 18px}.title-row{align-items:start}h1{font-size:25px}.stats{grid-template-columns:repeat(2,1fr)}.group-grid{grid-template-columns:1fr}.panel{padding:18px}.session{gap:10px}.session-info{padding-left:10px}.session button{padding:8px}.time{min-width:48px;font-size:12px}.title-row>.primary{font-size:11px}footer{padding:18px}.settings-row{flex-wrap:wrap}}.online-wrap{max-width:1080px;margin:0 auto;padding:24px}body{background:#f7f8f3}header{padding:0 25px}.auth-card{max-width:510px;margin:32px auto}.auth-card label input{width:100%}.auth-card .primary{width:100%;margin-top:15px}.error{color:#9d493c;white-space:pre-wrap;font-size:12px;line-height:1.8}.online-nav{display:flex;gap:8px;overflow:auto;padding:15px 0}.online-nav button{white-space:nowrap}.online-nav button.active{background:#246c52;color:#fff}.identity{font-size:11px;color:#738478}.online-wrap h1{font-size:26px}.online-wrap a{color:#246c52}.setup-steps{font-size:12px;line-height:2}.online-wrap .stats{grid-template-columns:repeat(3,1fr)}@media(max-width:700px){.online-wrap{padding:18px}.online-wrap .stats{grid-template-columns:1fr}.online-wrap header{padding:10px}.panel-head{gap:12px;flex-wrap:wrap}}.weekday-picks{display:flex;gap:14px;flex-wrap:wrap}.weekday-picks label{display:flex;align-items:center;gap:5px}.weekday-picks input{width:auto;margin:0}#finderModal{width:680px;max-height:85vh;overflow:auto}#finderResults p,#finderResults h3{overflow-wrap:anywhere}#printRoot{display:none}@media print{body.printing>*{display:none!important}body.printing>#printRoot{display:block!important;color:#000;background:#fff;padding:20px}#printRoot table{font-size:12px}#printRoot th,#printRoot td{border:1px solid #ccc}#printRoot h1{font-size:24px}#printRoot h2{margin-top:25px}}@media(max-width:700px){.online-wrap .grid{grid-template-columns:1fr}}.lesson-video-link{display:inline-block;border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px 15px;text-decoration:none}:root{--ink: #213d36;--green: #21694f;--muted: #64756e;--line: #e0e8e2;--cream: #f4f7f4;--ui-shadow: 0 3px 16px #244b3510}body{background:var(--cream);font-size:13px;line-height:1.55}#root>header{height:68px;padding:0 28px;background:#ffffffed;position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);gap:16px}#root>header .brand{align-items:center;gap:9px;font-size:25px;flex-shrink:0}#root>header .brand span{font-size:21px;letter-spacing:-.65px}.identity{font-size:11px;color:#526a5e;text-align:right;overflow-wrap:anywhere;max-width:45%}.online-wrap{max-width:1440px;padding:20px 28px 36px;margin:auto;min-width:0}#connection:empty{display:none}#connection>.panel-head{min-height:38px;margin:0 0 22px;gap:12px;flex-wrap:wrap}#connection .panel-head>div{display:flex;gap:7px;flex-wrap:wrap}#connection .badge{font-size:10px;background:#e9f1ec;color:#466d57;max-width:100%;overflow-wrap:anywhere}button,.lesson-video-link{min-height:36px;border-radius:9px;padding:8px 12px;font-size:12px;font-weight:500;line-height:1.45;transition:background .15s,border-color .15s,box-shadow .15s}button:hover,.lesson-video-link:hover{background:#edf4ee;border-color:#b6cfbf}button.primary{background:var(--green);border-color:var(--green);box-shadow:0 2px 5px #246c5218}button.primary:hover{background:#18553e;border-color:#18553e}button:disabled{opacity:.55;cursor:wait}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #82b49b;outline-offset:3px}input,select,textarea{border-color:#d8e3db;border-radius:9px;padding:9px 11px;font-size:12px;line-height:1.5;background:#fff;min-height:38px}input:focus,textarea:focus{outline:2px solid #a9cdb9;outline-offset:1px}textarea{resize:vertical;line-height:1.75;min-height:90px}input[type=checkbox],input[type=radio]{min-height:0;accent-color:var(--green)}.online-wrap h1{font-size:25px;letter-spacing:-.8px;line-height:1.3;margin:0 0 7px;font-weight:700}h2{font-size:16px;line-height:1.5;font-weight:600}h3{font-size:14px;line-height:1.5;margin:12px 0 7px}.subtitle{color:var(--muted);font-size:12px;line-height:1.75;margin:7px 0 14px}.hint{font-size:11px;line-height:1.75;color:var(--muted);margin:10px 0}.eyebrow{font-size:9px;font-weight:600;letter-spacing:1.4px;margin-bottom:9px}.title-row{gap:16px;align-items:center;margin-bottom:20px}.title-row>.primary{flex-shrink:0}.title-row .subtitle{margin-bottom:0}.panel,.group,.stat{border-color:var(--line);border-radius:14px;box-shadow:var(--ui-shadow)}.panel{padding:20px;margin-bottom:16px;min-width:0}.panel-head{gap:12px;margin-bottom:16px;flex-wrap:wrap}.panel-head .subtitle{margin-bottom:0}.group{padding:20px}.group-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:16px}.stats{gap:12px;margin-bottom:20px}.stat{padding:17px 18px;min-width:0;border-top:3px solid #d2e5d9}.stat .label{font-size:11px;color:#5e7366;font-weight:500}.stat strong{font-size:27px;font-weight:650;line-height:1.3;margin:12px 0 6px;letter-spacing:-.75px;overflow-wrap:anywhere}.stat small{font-size:10px;color:var(--muted)}.toolbar{gap:8px;align-items:end;margin-bottom:16px}.toolbar input{min-width:160px}.toolbar select{max-width:100%}.toolbar>label{font-size:11px}.panel>.toolbar:last-child{margin-bottom:0}.badge{padding:4px 8px;border-radius:6px;font-weight:500;line-height:1.5;background:#eaf3ec;color:#41694e}.badge.amber{background:#fff2d8;color:#876020}.badge.gray{background:#f0f3f1;color:#66756e}.table-wrap{border-radius:12px;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#bccdc1 transparent}table{font-size:12px}th{font-size:10px;font-weight:600;color:#5e7366;background:#f2f6f3;white-space:nowrap}td,th{padding:12px 10px;vertical-align:middle}td{line-height:1.65}tr:last-child td{border-bottom:0}tr:hover td{background:#f8fbf8}td button{min-height:32px;padding:6px 9px;font-size:11px;margin:2px}.settings-row{padding:16px 0;align-items:center;gap:18px}.settings-row:first-child{padding-top:0}.settings-row h2{font-size:14px}.settings-row p{margin:5px 0 0;line-height:1.75}.settings-row>button{flex-shrink:0}.session{padding:14px 0;gap:12px}.session-info{padding-left:12px;border-color:#88b19a;min-width:0;overflow-wrap:anywhere}.session-info h3{margin:0 0 5px}.notice{margin:15px 0;padding-bottom:12px;border-bottom:1px solid #edf2ee}.notice:last-child{border-bottom:0;padding-bottom:0}.notice p{line-height:1.8}.text-btn{min-height:30px;font-size:11px;padding:4px 3px}.online-nav{gap:5px;padding:10px 0;margin-bottom:14px;scrollbar-width:thin;scrollbar-color:#b8cbbd transparent;overscroll-behavior-x:contain}.online-nav button{white-space:nowrap;background:transparent;border-color:transparent;font-size:12px;min-height:38px;padding:9px 11px;color:#52695c}.online-nav button:hover{background:#edf4ee}.online-nav button.active{background:#21694f;color:#fff;box-shadow:0 3px 8px #21694f20}.auth-card{max-width:440px;margin:40px auto;padding:30px;box-shadow:0 12px 40px #204f3410}.auth-card .eyebrow{font-size:9px}.auth-card h1{font-size:25px}.auth-card label{font-size:12px;margin:16px 0}.auth-card input{min-height:43px}.auth-card .primary{min-height:43px;margin-top:8px}.auth-card .text-btn{font-size:12px}dialog{width:620px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 40px);overflow:auto;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 24px 90px #17392e40;overscroll-behavior:contain}dialog::backdrop{background:#17382d65;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.modal-head{gap:16px;margin-bottom:16px;align-items:start}.modal-head h2{font-size:18px}.modal-head>button{flex-shrink:0;min-width:34px;min-height:34px;padding:5px}label{line-height:1.6;margin:14px 0}label input,label select,label textarea{margin-top:6px}#onlineForm>.primary{margin-top:12px;min-width:110px}.error{color:#a33e32;font-size:12px}#toast{max-width:calc(100vw - 32px);font-size:12px;line-height:1.7;padding:13px 18px;border-radius:11px;z-index:100;box-shadow:0 8px 25px #17382d25}#finderModal{width:680px}#finderResults .panel{box-shadow:none}#online>p.hint:last-child{font-size:10px;color:#74867a;margin-top:24px}@media(min-width:1101px){body:has(#onlineNav) .online-wrap{padding-left:264px}#onlineNav{position:fixed;top:88px;bottom:24px;left:max(20px,calc((100vw - 1440px)/2 + 20px));width:216px;display:flex;flex-direction:column;gap:5px;overflow-x:hidden;overflow-y:auto;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--ui-shadow);margin:0;z-index:10}#onlineNav button{text-align:left;flex-shrink:0;width:100%;min-height:38px;padding:9px 12px;white-space:normal;line-height:1.5}#onlineNav button.active{box-shadow:none}}@media(min-width:1101px)and (max-width:1280px){.group-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid{grid-template-columns:minmax(0,1fr)}}@media(max-width:1100px){.online-wrap{padding:18px 22px 30px}#onlineNav{position:sticky;top:68px;z-index:12;background:var(--cream);margin:0 -3px 18px;padding:9px 3px 11px;box-shadow:0 1px 0 var(--line);border-radius:0}.grid{grid-template-columns:minmax(0,1fr)}.group-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:700px){#root>header{height:62px;padding:0 16px;gap:10px}#root>header .brand{font-size:22px;gap:7px}#root>header .brand span{font-size:18px;letter-spacing:-.6px}.identity{font-size:10px;max-width:40%}.online-wrap{padding:14px 14px 28px}#connection>.panel-head{margin-bottom:10px;gap:9px}#connection .panel-head>div{width:100%;gap:6px}#connection button{font-size:11px;min-height:38px;padding:8px 11px}#onlineNav{top:62px;margin-bottom:16px;padding-top:9px}.online-nav button{min-height:40px;font-size:12px}.online-wrap h1{font-size:23px}.title-row{align-items:start;margin-bottom:16px;gap:10px}.title-row>.primary{font-size:11px;padding:9px 11px}.panel{padding:16px;margin-bottom:14px;border-radius:12px}.panel-head{margin-bottom:13px;gap:10px}.group-grid{grid-template-columns:minmax(0,1fr);gap:12px}.online-wrap .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:16px}.stat{padding:14px}.stat strong{font-size:23px;margin-top:10px}.toolbar{gap:7px;align-items:stretch}.toolbar>input{flex:1 1 100%;min-width:0}.toolbar>select{flex:1 1 145px;min-width:0}.toolbar>label{flex:1 1 130px}.toolbar>button,.toolbar>.lesson-video-link{min-height:40px}.settings-row{gap:12px;flex-wrap:wrap;align-items:start;padding:15px 0}.settings-row>div{flex:1 1 200px;min-width:0}.settings-row p{overflow-wrap:anywhere}td,th{padding:10px 9px}td button{min-height:36px}dialog{padding:19px;max-width:calc(100vw - 20px);max-height:calc(100dvh - 24px);border-radius:14px}.auth-card{margin:24px auto;padding:24px;max-width:440px}#toast{left:14px;right:14px;bottom:16px;max-width:none}.code{font-size:32px;letter-spacing:7px}}@media(max-width:420px){.online-wrap .stats{grid-template-columns:minmax(0,1fr)}.brand span{max-width:180px}.stat strong{font-size:25px}.title-row{flex-wrap:wrap}.identity{max-width:34%}}@media(prefers-reduced-motion:reduce){button,.lesson-video-link{transition:none}}@media print{#root>header,#onlineNav,#connection{display:none!important}.online-wrap,body:has(#onlineNav) .online-wrap{padding:0;margin:0;max-width:none}.panel,.stat,.group{box-shadow:none;break-inside:avoid}}.mobile-navigation{display:none}@media screen and (max-width:700px){body{font-size:13px;background:#f3f6f3;-webkit-text-size-adjust:100%}#root>header{height:58px;padding:0 14px;gap:10px}#root>header .brand{font-size:21px;gap:6px}#root>header .brand span{font-size:17px;max-width:none;letter-spacing:-.5px}.identity{font-size:10px;line-height:1.5;max-width:37%}.online-wrap{padding:12px 12px calc(24px + env(safe-area-inset-bottom,0px));width:100%;min-width:0}#connection>.panel-head{margin:0 0 10px;gap:8px;min-height:0}#connection .badge{font-size:0;padding:3px 7px;border-radius:20px;line-height:1.5}#connection .badge:before{content:"● Đã kết nối";font-size:10px;color:#426e52}#connection .panel-head>div{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:6px;width:100%}#connection button{width:100%;min-height:42px;padding:8px 7px;font-size:11px;background:#fff}#onlineNav{display:none}.mobile-navigation{display:flex;align-items:center;gap:10px;position:sticky;top:58px;z-index:12;background:#fff;padding:9px 11px;margin:0 0 17px;border:1px solid #dce7df;border-radius:12px;box-shadow:0 4px 12px #234a3510}.mobile-navigation label{margin:0;font-size:10px;font-weight:600;line-height:1.4;color:#607467;flex-shrink:0}.mobile-navigation select{min-width:0;width:100%;flex:1;font-size:16px;font-weight:600;color:#21563e;padding:9px 28px 9px 10px;min-height:44px;border:0;border-left:1px solid #e3ebe5;border-radius:0;background:#fff}.online-wrap h1{font-size:22px;line-height:1.35;letter-spacing:-.6px}h2{font-size:15px;line-height:1.6}h3{font-size:14px}.subtitle{font-size:12px;line-height:1.7;margin:6px 0 11px;overflow-wrap:anywhere}.hint{font-size:11px;line-height:1.7;overflow-wrap:anywhere}.eyebrow{font-size:9px;letter-spacing:1px;margin-bottom:6px}.title-row{display:flex;align-items:start;flex-wrap:wrap;gap:10px;margin-bottom:15px}.title-row>div{min-width:0;flex:1 1 200px}.title-row>.primary{min-height:44px;padding:10px 13px;font-size:12px}.panel{padding:15px;margin-bottom:12px;border-radius:14px;box-shadow:0 2px 9px #21472c07;max-width:100%}.panel-head{align-items:start;gap:9px;margin-bottom:12px}.panel-head>div{min-width:0;overflow-wrap:anywhere}.panel-head>input{width:100%;min-width:0}.panel-head>.badge{max-width:100%;white-space:normal}.grid{gap:0;grid-template-columns:minmax(0,1fr)}.online-wrap .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:15px}.online-wrap .stats>.stat:last-child:nth-child(odd){grid-column:1/-1}.stat{padding:12px 13px;border-radius:12px;border-top-width:2px;box-shadow:none}.stat .label{font-size:10px;line-height:1.6}.stat strong{font-size:23px;margin:8px 0 4px;line-height:1.3;letter-spacing:-.6px}.stat small{font-size:10px;line-height:1.55}.group-grid{grid-template-columns:minmax(0,1fr);gap:12px}.group{padding:16px;border-radius:14px}.group-icon{padding:9px;font-size:20px}.group p{font-size:12px;line-height:1.7;margin:10px 0}.group-bottom{gap:8px;flex-wrap:wrap;padding-top:12px}button,.lesson-video-link{min-height:44px;padding:10px 12px;font-size:12px;border-radius:10px;touch-action:manipulation}.text-btn{min-height:40px;padding:7px 3px;font-size:12px}input,select,textarea{font-size:16px;min-height:44px;min-width:0;width:auto;padding:10px;border-radius:10px}input[type=checkbox],input[type=radio]{width:19px;height:19px;min-height:0;padding:0;flex-shrink:0}input[type=file]{max-width:100%;width:100%;font-size:13px;overflow-wrap:anywhere}input[type=date],input[type=month],input[type=datetime-local],input[type=time]{min-width:0;max-width:100%}.toolbar{display:flex;gap:7px;align-items:stretch;flex-wrap:wrap;margin-bottom:13px;max-width:100%;min-width:0}.toolbar>input{flex:1 1 100%;width:100%;min-width:0}.toolbar>select{flex:1 1 calc(50% - 7px);width:0;min-width:0}.toolbar>label{flex:1 1 calc(50% - 7px);min-width:0;width:0;margin:0;font-size:11px}.toolbar>label input,.toolbar>label select{width:100%;min-width:0;margin-top:5px}.toolbar>button,.toolbar>.lesson-video-link{flex:1 1 auto;max-width:100%;font-size:12px;overflow-wrap:anywhere;white-space:normal;text-align:center}.lesson-video-link{display:inline-flex;align-items:center;justify-content:center}.table-wrap{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:10px;scrollbar-width:thin}.table-wrap table{min-width:520px}.table-wrap:has(th:nth-child(7)) table{min-width:760px}.panel:has(>table){overflow-x:auto;-webkit-overflow-scrolling:touch}.panel>table{min-width:520px}table{font-size:12px}td,th{padding:10px 9px;line-height:1.6}td button{min-height:42px;padding:8px 10px;font-size:12px;margin:3px 2px}.settings-row{padding:14px 0;gap:9px;flex-direction:column;align-items:stretch}.settings-row>div{flex:none;width:100%;min-width:0}.settings-row h2{font-size:14px}.settings-row>button{align-self:flex-start;max-width:100%}.session{gap:10px;flex-wrap:wrap;padding:12px 0}.session-info{flex:1 1 170px;min-width:0;padding-left:10px}.session>button{font-size:12px;min-height:44px}.notice{margin:11px 0;padding-bottom:10px}.notice p{font-size:12px}.auth-card{margin:18px auto;padding:22px 18px;border-radius:18px;max-width:440px;box-shadow:0 8px 30px #244c3410}.auth-card input{font-size:16px;min-height:46px}.auth-card .primary{min-height:46px}.auth-card .text-btn{font-size:12px;min-height:42px}dialog,#finderModal{position:fixed;inset:auto 0 0;margin:0 auto;width:100%;max-width:100%;max-height:88vh;max-height:88dvh;border-radius:20px 20px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom,0px));overflow-y:auto;overscroll-behavior:contain}.modal-head{margin-bottom:14px;gap:10px}.modal-head h2{font-size:17px;line-height:1.5}.modal-head>button{min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:50%;padding:7px}dialog label{font-size:12px;margin:13px 0}dialog label input,dialog label select,dialog label textarea{width:100%}#onlineForm>.primary{width:100%;min-height:46px;margin-top:12px}#finderInput,#finderKind{width:100%;font-size:16px}#toast{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));padding:13px 15px;font-size:12px}.code{font-size:32px;letter-spacing:6px;overflow-wrap:anywhere}.chart,.weekday-picks{gap:10px}.weekday-picks label{min-height:40px;align-items:center}}@media screen and (max-width:350px){#root>header .brand span{font-size:15px}.identity{font-size:9px;max-width:33%}.online-wrap .stats{grid-template-columns:minmax(0,1fr)}.toolbar>select,.toolbar>label{flex-basis:100%;width:100%}.mobile-navigation{gap:6px;padding:8px}.mobile-navigation label{font-size:9px}}@media print{.mobile-navigation{display:none!important}}.toolbar.date-filter{padding:13px;background:#fff;border:1px solid var(--line);border-radius:13px;gap:10px;align-items:end;box-shadow:0 2px 8px #244b3506}.toolbar.date-filter>.filter-date{min-width:0;margin:0;font-size:11px;font-weight:500;color:#5e7366}.toolbar.date-filter>.filter-date input{display:block;box-sizing:border-box;min-width:0;max-width:100%;width:100%;min-height:44px;margin-top:6px;font-weight:400;background:#f8faf8}.toolbar.date-filter>select{min-height:44px;background:#f8faf8}.toolbar.date-filter>button{min-height:44px}@media screen and (max-width:700px){.toolbar.date-filter{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 10px;padding:13px;border-radius:14px;margin-bottom:12px;align-items:end}.toolbar.date-filter>select{grid-column:1/-1;width:100%;min-width:0;max-width:100%;height:46px;font-size:16px;padding:10px 12px;border-radius:10px}.toolbar.date-filter>.filter-date{display:block;grid-column:auto;width:100%;min-width:0;max-width:100%;font-size:11px;line-height:1.5;align-self:stretch}.toolbar.date-filter>.filter-date input[type=date]{-webkit-appearance:none;appearance:none;display:block;width:100%;min-width:0;max-width:100%;min-inline-size:0;inline-size:100%;height:46px;min-height:46px;margin:6px 0 0;padding:10px 8px;font-size:16px;line-height:24px;border-radius:10px;overflow:hidden}.toolbar.date-filter input[type=date]::-webkit-date-and-time-value{text-align:left;min-height:24px}.toolbar.date-filter input[type=date]::-webkit-datetime-edit{padding:0}.toolbar.date-filter>button{grid-column:auto;width:100%;min-width:0;max-width:100%;height:auto;min-height:44px;margin:0;padding:10px 7px;font-size:12px;line-height:1.5;border-radius:10px;white-space:normal}.toolbar.date-filter>button:last-child{background:#f3f6f3;color:#536b5d}}#root{min-height:100dvh}.pre{white-space:pre-wrap;overflow-wrap:anywhere}details>summary{cursor:pointer;font-size:12px;font-weight:600;padding:10px 0}.inline-check{display:flex;align-items:center;gap:8px;margin:0}.inline-check input{width:auto;margin:0}.panel .toolbar{margin-top:8px}fieldset{min-width:0}dialog form .primary{min-width:100px}dialog .modal-head{position:relative}.settings-row>.toolbar{margin:0;align-items:center}.group .toolbar{margin-top:12px}#root>header{height:68px;display:flex;justify-content:space-between;align-items:center}.online-wrap{max-width:1440px}#onlineModal{width:620px}#onlineForm>.primary{margin-top:12px}#onlineForm fieldset .toolbar{align-items:end}#onlineForm fieldset .toolbar>label{flex:1;min-width:0}body:has(#onlineNav) .online-wrap{min-height:80vh}.mobile-navigation select{appearance:auto}@media(max-width:700px){#root>header{height:58px}#onlineModal{width:100%}.inline-check{min-height:44px}.inline-check input{width:19px}.settings-row>.toolbar{width:100%}.panel .toolbar>button{min-width:0}.toolbar.date-filter>select{width:100%}}@media print{body:has(dialog[open]) #root>header,body:has(dialog[open]) .online-wrap,body:has(dialog[open]) #toast{display:none!important}dialog[open]{display:block!important;position:static!important;margin:0!important;max-width:none!important;max-height:none!important;width:100%!important;padding:0!important;border:0!important;box-shadow:none!important;overflow:visible!important}dialog[open]::backdrop{display:none}dialog[open] button{display:none!important}.table-wrap{overflow:visible!important}table{min-width:0!important}}button.danger{color:#a23e32;border-color:#e6c8c2;background:#fffaf9}button.danger:hover{background:#fff0ec;border-color:#cf948a}:root{--ink: #0f172a;--ink-secondary: #334155;--muted: #64748b;--green: #047857;--green-hover: #065f46;--green-light: #ecfdf5;--green-border: #a7f3d0;--green-subtle: #f0fdf4;--line: #e2e8f0;--line-subtle: #f1f5f9;--cream: #f8fafc;--card-bg: #ffffff;--shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, .06), 0 1px 2px -1px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .03);--shadow-emerald: 0 4px 14px 0 rgba(4, 120, 87, .22)}body{background:var(--cream);color:var(--ink);font-family:Be Vietnam Pro,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root>header{height:68px;background:#ffffffe0;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:0 28px;position:sticky;top:0;z-index:30;display:flex;justify-content:space-between;align-items:center}#root>header .brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:18px;font-weight:800;letter-spacing:-.4px;color:var(--ink)}.brand-icon{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#059669,#047857);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 2px 8px #05966947}.brand-badge{font-size:10px;font-weight:700;background:var(--green-light);color:var(--green);border:1px solid var(--green-border);border-radius:9999px;padding:2px 7px;margin-left:2px}.identity-user{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);padding:4px 12px 4px 6px;border-radius:9999px;font-size:12px;box-shadow:var(--shadow-xs)}.user-avatar{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#059669,#0d9488);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:11px}#connection{margin-bottom:20px}#connection>.panel-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:0;min-height:auto}#connection .badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:9999px;font-size:11.5px;font-weight:600;background:var(--green-light);color:var(--green);border:1px solid var(--green-border);box-shadow:var(--shadow-xs)}.pulse-dot{width:8px;height:8px;border-radius:50%;background:#10b981;box-shadow:0 0 #10b981b3;animation:pulse-green 2s infinite;display:inline-block;flex-shrink:0}@keyframes pulse-green{0%{transform:scale(.95);box-shadow:0 0 #10b981b3}70%{transform:scale(1);box-shadow:0 0 0 6px #10b98100}to{transform:scale(.95);box-shadow:0 0 #10b98100}}#connection button{background:#fff;border:1px solid var(--line);color:var(--ink-secondary);font-size:12px;font-weight:600;padding:7px 13px;border-radius:10px;transition:all .15s ease;box-shadow:var(--shadow-xs)}#connection button:hover:not(:disabled){background:var(--line-subtle);color:var(--ink);border-color:#cbd5e1;transform:translateY(-.5px)}#connection kbd{font-size:10px;padding:1.5px 5px;background:var(--line-subtle);border:1px solid var(--line);border-radius:4px;margin-left:5px;color:var(--muted)}@media(min-width:1101px){body:has(#onlineNav) .online-wrap{padding-left:256px}#onlineNav{position:fixed;top:86px;bottom:24px;left:max(20px,calc((100vw - 1440px)/2 + 20px));width:220px;display:flex;flex-direction:column;gap:4px;overflow-x:hidden;overflow-y:auto;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);margin:0;z-index:20}#onlineNav button{text-align:left;flex-shrink:0;width:100%;min-height:38px;padding:9px 13px;border-radius:10px;border:1px solid transparent;background:transparent;color:#475569;font-size:12.5px;font-weight:600;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all .15s ease}#onlineNav button:hover{background:var(--line-subtle);color:var(--ink)}#onlineNav button.active{background:var(--green);color:#fff;font-weight:700;box-shadow:var(--shadow-emerald)}}.stats{display:grid;gap:16px;margin-bottom:22px}.online-wrap .stats{grid-template-columns:repeat(3,minmax(0,1fr))}.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;border-top:3px solid var(--green);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cbd5e1}.stat .label{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:6px}.stat strong{font-size:26px;font-weight:800;color:var(--ink);letter-spacing:-.6px;display:block;line-height:1.25;margin:6px 0 4px}.stat small{font-size:11px;font-weight:500;color:var(--green);display:block}.panel,.group{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);padding:22px 24px;margin-bottom:20px;transition:border-color .2s ease,box-shadow .2s ease}.panel:hover,.group:hover{border-color:#cbd5e1}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:12px}.panel-head h2{font-size:17px;font-weight:750;color:var(--ink);margin:0;letter-spacing:-.3px}.title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;flex-wrap:wrap;gap:14px}.title-row h1{font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.5px;margin:0}.subtitle{font-size:13px;color:var(--muted);margin:4px 0 0;line-height:1.6}button,.lesson-video-link{background:#fff;border:1px solid var(--line);color:var(--ink-secondary);border-radius:10px;font-size:12.5px;font-weight:600;padding:8px 15px;cursor:pointer;transition:all .15s ease;box-shadow:var(--shadow-xs);display:inline-flex;align-items:center;justify-content:center;gap:6px}button:hover:not(:disabled),.lesson-video-link:hover{background:var(--cream);border-color:#cbd5e1;color:var(--ink);transform:translateY(-.5px)}button:active:not(:disabled){transform:translateY(0)}button.primary{background:var(--green);border-color:var(--green);color:#fff;box-shadow:var(--shadow-emerald)}button.primary:hover:not(:disabled){background:var(--green-hover);border-color:var(--green-hover);box-shadow:0 6px 16px #04785759;transform:translateY(-.5px)}button.text-btn{background:transparent;border:none;box-shadow:none;color:var(--green);padding:4px 8px;font-weight:600}button.text-btn:hover{background:var(--green-light);color:var(--green-hover);transform:none}.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:9999px;font-size:11px;font-weight:600;line-height:1.4;background:var(--green-light);color:var(--green);border:1px solid var(--green-border)}.badge.amber{background:#fffbeb;color:#b45309;border:1px solid #fde68a}.badge.gray{background:var(--line-subtle);color:#475569;border:1px solid var(--line)}.table-wrap{border:1px solid var(--line);border-radius:14px;overflow-x:auto;background:#fff;box-shadow:var(--shadow-sm);margin:12px 0}table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px;text-align:left}th{background:#f8fafc;color:#475569;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;padding:12px 16px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:13px 16px;border-bottom:1px solid var(--line-subtle);color:#1e293b;vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background:#f8fafc}td button{padding:6px 11px;font-size:11.5px;border-radius:8px}.session{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:#fff;transition:all .15s ease;gap:12px}.session:hover{border-color:var(--green);background:var(--green-subtle);box-shadow:var(--shadow-xs)}.session-info{border-left:3px solid var(--green);padding-left:12px}.session-info h3{font-size:14px;font-weight:700;color:var(--ink);margin:0 0 4px}.session-info p{font-size:12px;color:var(--muted);margin:0}.notice{padding:12px 14px;background:#f8fafc;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;font-size:12.5px}.notice:last-child{margin-bottom:0}label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-secondary);margin-bottom:12px}input,select,textarea{display:block;width:100%;box-sizing:border-box;margin-top:6px;padding:9px 13px;border:1px solid #cbd5e1;border-radius:10px;font-size:13px;color:var(--ink);background:#fff;transition:border-color .15s ease,box-shadow .15s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px #04785726}dialog{border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow-lg);padding:24px;max-width:620px;width:90vw}dialog::backdrop{background:#0f172a73;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#toast{background:#0f172a;color:#fff;border-radius:12px;box-shadow:0 10px 25px -5px #0000004d;font-weight:500}.mobile-bottom-bar{display:none}@media(max-width:700px){#root>header{height:58px;padding:0 14px}.online-wrap{padding:12px 14px calc(76px + env(safe-area-inset-bottom,0px))}.online-wrap .stats{grid-template-columns:1fr}.mobile-navigation{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 12px;margin-bottom:16px;box-shadow:var(--shadow-sm)}.mobile-navigation label{margin:0;font-size:11px;font-weight:700;color:var(--muted);white-space:nowrap}.mobile-navigation select{border:none;font-size:14px;font-weight:700;color:var(--green);background:transparent;padding:4px}.mobile-bottom-bar{display:flex;position:fixed;bottom:0;left:0;right:0;height:60px;background:#fffffff5;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);z-index:40;justify-content:space-around;align-items:center;padding:0 8px env(safe-area-inset-bottom,0px);box-shadow:0 -4px 12px #0000000d}.mobile-bottom-bar button{background:transparent;border:none;box-shadow:none;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--muted);font-size:10px;font-weight:600;padding:6px;cursor:pointer;position:relative;min-height:auto}.mobile-bottom-bar button.active{color:var(--green);font-weight:700}.mobile-bottom-bar button .bottom-icon{font-size:17px;line-height:1}.mobile-bottom-bar .bottom-badge{position:absolute;top:2px;right:8px;background:#ef4444;color:#fff;font-size:9px;font-weight:800;border-radius:9999px;padding:1px 5px;line-height:1.2}.mobile-bottom-bar .quick-search-btn{width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 4px 10px #04785759;margin-top:-12px;border:3px solid #ffffff}}