@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap');
:root{--ink:#183d37;--lime:#e4eea7;--text:#253633;--muted:#6c7975;--line:#dfe6e2;--bg:#f6f8f6}*{box-sizing:border-box}body{margin:0;font-family:'Noto Sans KR',sans-serif;color:var(--text);background:var(--bg);font-size:16px}button,input,textarea,select{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:3px solid #77a991;outline-offset:4px}.preview{padding:9px 5%;background:#e8ede9;color:#425a50;font-size:12px;text-align:center}.preview span{margin-left:18px;color:#758079}header{background:#fff;min-height:96px;padding:20px 5%;display:flex;align-items:center;gap:40px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:800;white-space:nowrap}.brandmark{background:var(--ink);color:var(--lime);border-radius:12px;width:45px;height:49px;display:grid;place-items:center;font-size:29px}.brand small{display:block;font-size:10px;letter-spacing:3px;color:#728279;margin-top:4px}nav{display:flex;gap:32px;margin-left:auto}nav a{font-size:15px;font-weight:600;padding:12px 0}nav a.active{color:var(--ink);box-shadow:0 2px var(--ink)}button{border:1px solid var(--line);background:white;border-radius:8px;padding:11px 17px;color:var(--ink);font-weight:600}.admin-toggle{font-size:14px;background:#f2f5f2;margin-left:12px}.primary{background:var(--ink);color:white;border-color:var(--ink)}.light{background:var(--lime);border:0}main{max-width:1240px;margin:auto;padding:42px 32px 70px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:#809589;margin-bottom:13px}h1{font-size:34px;line-height:1.4;letter-spacing:-1.2px;margin:0 0 12px}h2{font-size:22px;margin:0}p{line-height:1.8;color:var(--muted)}.intro{display:grid;grid-template-columns:1fr 355px;gap:40px;align-items:center;margin-bottom:35px}.intro p{margin:0;font-size:15px}.guide{border-left:3px solid #c6d79b;padding:4px 0 4px 22px;font-size:14px;line-height:1.9;color:#596b61}.guide strong{display:block;color:var(--ink);font-size:15px;margin-bottom:5px}.section-head{display:flex;justify-content:space-between;align-items:center;margin:25px 0 19px}.section-head span{font-size:14px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.course{background:white;border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:transform .18s,box-shadow .18s}.course:hover{transform:translateY(-4px);box-shadow:0 12px 28px #163c3510}.cover{height:158px;padding:23px;display:flex;flex-direction:column;justify-content:space-between;background:#dce8e1;color:#295348}.cover.c1{background:#e6eabb;color:#596430}.cover.c2{background:#dde7ec;color:#3c6174}.cover.c3{background:#ebe4da;color:#786343}.coverline{display:flex;align-items:center;justify-content:space-between;font-size:12px;letter-spacing:1px;font-weight:700}.folder{width:48px;height:39px}.cover strong{font-size:26px;letter-spacing:-1px}.course-content{padding:21px}.course h3{font-size:18px;line-height:1.6;margin:0 0 9px;min-height:57px}.pill{display:inline-block;border-radius:5px;padding:4px 8px;background:#edf4eb;color:#407345;font-size:12px;font-weight:600}.pill.locked{background:#f1f2f1;color:#7a817d}.meta{font-size:13px;color:#829086;margin:17px 0}.course button{width:100%;font-size:14px}.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:35px}.panel{padding:25px;background:#fff;border:1px solid var(--line);border-radius:12px}.panel .section-head{margin:0 0 18px}.more{font-size:13px;color:#7a867f}.post{display:flex;gap:12px;align-items:center;padding:15px 0;border-top:1px solid #eef1ed;width:100%;text-align:left;background:none;border-radius:0;border-left:0;border-right:0;border-bottom:0;font-weight:400;font-size:14px}.post span{flex:1}.post time{font-size:12px;color:#8b958e}.tiny{font-size:12px;color:#8a958d}.breadcrumb{font-size:14px;color:#77877d;margin-bottom:25px}.detail-head{background:var(--ink);color:white;padding:30px;border-radius:15px;display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:26px}.detail-head p{color:#c4d7cb;margin-bottom:0}.detail-head .eyebrow{color:var(--lime)}.lesson{display:flex;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}.lesson-num{font-size:21px;color:#9ba99e;min-width:45px}.lesson-text{flex:1}.lesson h3{font-size:16px;margin:0 0 8px}.lesson p{font-size:13px;margin:0}.callout{background:#edf2e9;padding:17px 20px;border-radius:9px;font-size:14px;line-height:1.8;margin:20px 0;color:#526a55}.back{margin-bottom:20px}.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.tabs .selected{background:var(--ink);color:#fff}.member{padding:20px 0;border-top:1px solid var(--line);display:flex;align-items:center;gap:20px}.avatar{width:42px;height:42px;border-radius:50%;background:#edf2e7;display:grid;place-items:center}.member-name{flex:1}.member small{display:block;color:var(--muted);margin-top:6px}.member-actions{display:flex;align-items:center;gap:12px}.empty{padding:55px 20px;text-align:center;color:var(--muted)}footer{padding:28px 5%;border-top:1px solid var(--line);display:flex;gap:35px;flex-wrap:wrap;font-size:13px;color:#7a867e}footer strong{color:#486052}footer span:last-child{margin-left:auto}dialog{border:0;border-radius:18px;padding:35px;max-width:600px;width:calc(100% - 32px);box-shadow:0 30px 100px #0003}dialog::backdrop{background:#10282088}dialog h2{padding-right:30px;margin-bottom:18px}.close{position:absolute;right:15px;top:13px;padding:3px 10px;border:0;font-size:26px;background:none}input,textarea,select{display:block;width:100%;padding:12px;border:1px solid var(--line);border-radius:7px;margin:8px 0 18px;background:white}label{font-size:14px}textarea{min-height:130px}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:14px 22px;border-radius:9px;display:none;z-index:5;width:max-content;max-width:90%;font-size:14px}.video-placeholder{aspect-ratio:16/9;background:#172b26;display:grid;place-items:center;color:#c2d3c7;border-radius:10px;text-align:center;padding:25px;line-height:1.9}.board-title{flex:1}.post-body{white-space:pre-wrap;line-height:1.9;color:#53645a}.badge{font-size:12px;background:#e8eee6;padding:4px 7px;border-radius:4px}.admin-note{font-size:14px;line-height:1.8;color:#738176}.wide{width:100%}
@media(max-width:1000px){.grid{grid-template-columns:repeat(2,1fr)}header{gap:20px}nav{gap:18px}.intro{grid-template-columns:1fr 300px}h1{font-size:29px}}@media(max-width:650px){header{padding:18px 20px;flex-wrap:wrap;gap:18px}.brand{font-size:18px}.brandmark{width:38px;height:42px}.admin-toggle{margin-left:auto;padding:9px;font-size:12px}nav{order:3;width:100%;margin:0;justify-content:space-between}.preview span{display:none}main{padding:28px 20px 45px}.intro{grid-template-columns:1fr;gap:22px}.guide{font-size:13px}.grid{gap:12px}.cover{height:125px;padding:17px}.cover strong{font-size:21px}.course-content{padding:15px}.course h3{font-size:16px;min-height:76px}.meta{font-size:12px}.bottom-grid{grid-template-columns:1fr;gap:18px}h1{font-size:27px}.detail-head{padding:23px;display:block}.detail-head button{margin-top:15px}.lesson{gap:12px;flex-wrap:wrap}.lesson-text{min-width:160px}.lesson>button{margin-left:auto}.member{flex-wrap:wrap;gap:12px}.member-actions{width:100%;justify-content:flex-end}footer{gap:15px}footer span:last-child{margin-left:0}.coverline{font-size:10px}.section-head{gap:10px}.section-head h2{font-size:20px}}

/* Original academy CI, uncropped and in its supplied colors. */
img.brandmark{display:block;width:48px;height:48px;object-fit:contain;background:white;border-radius:0;flex-shrink:0}
@media(max-width:650px){img.brandmark{width:40px;height:40px}}
.account-actions{display:flex;align-items:center;gap:8px}.account-actions button{font-size:14px;white-space:nowrap;padding:10px 12px}.login-button{display:flex;align-items:center;gap:7px;border:0}.account-links{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;margin-top:16px}.account-links button{border:0;font-size:14px;font-weight:400;padding:7px 10px;background:none}.account-intro{font-size:14px;margin-bottom:20px}.account-notice{font-size:13px;line-height:1.7;background:#f1f5ec;padding:12px 15px;border-radius:8px;margin-bottom:20px}.account-field small{display:block;margin-top:-10px;margin-bottom:17px;font-size:12px;color:var(--muted)}.account-result{line-height:1.8;color:#52685a}header{gap:24px}header nav{gap:23px}.admin-toggle{margin-left:0}dialog{max-height:90vh;overflow:auto}
@media(max-width:1050px){header{flex-wrap:wrap;gap:15px}header nav{order:4;width:100%;margin:0;justify-content:center;gap:40px}.account-actions{margin-left:auto}}
@media(max-width:650px){.account-actions{order:3;width:100%;justify-content:flex-end;border-top:1px solid var(--line);padding-top:10px}header nav{order:4;gap:18px;justify-content:space-between}.account-actions button{font-size:14px}.admin-toggle{margin-left:auto}dialog{padding:28px 22px}}
.class-title{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.class-title h1{font-size:28px;margin:0}.class-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:25px;align-items:start}.lesson-sidebar{border:1px solid var(--line);background:#fff;border-radius:12px;overflow:hidden}.sidebar-heading{display:flex;justify-content:space-between;align-items:center;padding:23px 20px 10px}.sidebar-heading h2{font-size:19px}.sidebar-heading span{font-size:14px;color:var(--muted)}.sidebar-caption{font-size:12px;color:#849088;padding:0 20px 20px}.file-list{max-height:580px;overflow:auto}.file-item{display:flex;width:100%;align-items:start;text-align:left;gap:12px;padding:22px 17px;border:0;border-top:1px solid #eaf0ea;border-radius:0;background:#fff;font-weight:400}.file-item.is-active{background:#eef4e6;box-shadow:inset 3px 0 #527d40}.file-number{font-size:13px;color:#8a998d;line-height:1.8}.file-info{flex:1;min-width:0}.file-info strong{display:block;font-size:14px;line-height:1.75;font-weight:600;overflow-wrap:anywhere}.file-info small{display:block;margin-top:9px;font-size:12px;color:#8a968d}.file-play{font-size:10px;padding-top:5px;color:#527d40}.sidebar-admin{padding:15px;display:grid;gap:10px}.sidebar-admin button{font-size:13px}.watch-area{min-width:0}.now-playing{margin:0 0 19px}.now-playing .eyebrow{display:block;margin-bottom:8px}.now-playing h2{font-size:20px;line-height:1.6}.screen-stage{background:#e8ece8;border-radius:12px;padding:12px;display:flex;justify-content:center;align-items:center;min-height:160px}.screen-box{aspect-ratio:16/9;background:#142922;border-radius:7px;overflow:hidden;transition:width .12s;display:flex;align-items:center;justify-content:center}.screen-box video{width:100%;height:100%;object-fit:contain;background:#000;display:block}.screen-empty{display:flex;flex-direction:column;align-items:center;gap:15px;padding:22px;text-align:center;color:#8aa799}.screen-empty strong{font-size:17px;font-weight:500;color:#dae6df}.screen-empty span{font-size:13px;color:#91a99a}.screen-box:fullscreen{width:100%!important;height:100%;border-radius:0;background:#000}.player-settings{background:white;border:1px solid var(--line);border-radius:10px;margin-top:17px;padding:19px 20px}.speed-control{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.speed-control>label,.size-control>label{font-size:14px;font-weight:600}.speed-buttons{display:flex;gap:7px;flex-wrap:wrap}.speed-button{padding:9px 11px;font-size:13px;font-weight:500;background:#f8faf7}.speed-button.selected{background:var(--ink);border-color:var(--ink);color:white}.size-control{display:flex;align-items:center;gap:20px;padding-top:16px;margin-top:16px;border-top:1px solid #edf1eb}.size-control output{color:#7e8b80;font-size:12px;display:inline-block;min-width:40px;margin-left:4px}.size-control input[type=range]{flex:1;min-width:60px;max-width:240px;width:auto;padding:0;margin:0;accent-color:var(--ink)}.size-control button{font-size:13px;padding:8px 12px;margin-left:auto}.lecture-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:17px}.lecture-bottom>span{font-size:12px;color:#859087;line-height:1.7}.lecture-bottom>div{display:flex;gap:7px;flex-shrink:0}.lecture-bottom button{font-size:13px;padding:9px 12px}button:disabled{cursor:default;opacity:.4}.local-test{margin-top:26px;padding:20px;border:1px dashed #cbd7ca;border-radius:10px;display:flex;align-items:center;gap:20px}.local-test strong{font-size:14px;font-weight:500}.local-test p{font-size:12px;line-height:1.8;margin:7px 0 0}.local-file-button{position:relative;overflow:hidden;flex-shrink:0;display:block;padding:10px 14px;border:1px solid #c6d3c5;border-radius:7px;background:white;font-size:13px;cursor:pointer}.local-file-button input{position:absolute;inset:0;opacity:0;width:100%;height:100%;cursor:pointer;margin:0;padding:0}.local-file-button:focus-within{outline:3px solid #77a991}
@media(max-width:1000px){.class-layout{grid-template-columns:240px minmax(0,1fr);gap:18px}.speed-control{gap:12px}.speed-buttons{gap:5px}.speed-button{padding:8px}.lecture-bottom{flex-wrap:wrap}.size-control{gap:10px}.screen-empty{gap:10px}.screen-empty strong{font-size:14px}.screen-empty span{font-size:12px}}
@media(max-width:720px){.class-layout{grid-template-columns:1fr}.lesson-sidebar{order:2}.watch-area{order:1}.class-title h1{font-size:23px}.class-title{align-items:start}.class-title .pill{flex-shrink:0;font-size:11px}.now-playing h2{font-size:18px}.screen-stage{padding:7px}.screen-empty{padding:12px;gap:8px}.screen-empty svg{width:32px;height:32px}.screen-empty strong{font-size:13px}.screen-empty span{font-size:11px}.player-settings{padding:16px 14px}.speed-control{display:block}.speed-buttons{margin-top:12px;display:grid;grid-template-columns:repeat(6,1fr)}.speed-button{padding:8px 3px;font-size:12px}.size-control label{font-size:13px}.local-test{padding:16px;gap:12px}.file-list{max-height:350px}}
.approval-controls{display:flex;gap:20px;align-items:center;margin:15px 0 22px}.approval-controls label{min-width:230px;font-size:14px;font-weight:600}.approval-controls select{margin:8px 0 0}.approval-controls button{margin-top:26px}.approval-controls select:disabled{background:#f1f4f0;color:#687769}.enrollment-summary{display:grid;gap:10px;padding:20px;background:#f4f7f1;border-radius:10px;font-size:14px}.enrollment-summary strong{color:var(--ink)}.enrollment-dates{font-size:13px;margin:-10px 0 25px;line-height:1.8}@media(max-width:650px){.approval-controls{gap:12px}.approval-controls label{min-width:0;flex:1}.enrollment-summary{font-size:13px}}
footer.business-footer{display:block;padding:25px 20px;background:#f1f4f1;color:#626f66}.business-line{display:flex;align-items:baseline;justify-content:center;gap:0;font-size:12px;line-height:1.9;white-space:nowrap}.business-line>span{margin:0!important}.business-line>span+span::before,.business-line>.terms-link::before{content:'|';margin:0 9px;color:#aeb9b0}.business-line a:hover{text-decoration:underline}.terms-link{text-decoration:underline;text-underline-offset:3px;color:#365343}@media(max-width:1350px){.business-line{flex-wrap:wrap;white-space:normal;row-gap:5px;justify-content:flex-start}.business-line>span{display:inline-block}.business-line>span+span::before,.business-line>.terms-link::before{margin:0 7px}}@media(max-width:650px){footer.business-footer{padding:22px 20px}.business-line{font-size:12px;gap:6px 12px}.business-line>span+span::before,.business-line>.terms-link::before{display:none}}
.screen-box{position:relative}.fullscreen-close{display:none;position:absolute;top:16px;right:16px;z-index:2;color:white;background:#183d37ed;border:1px solid #ffffff80;font-size:14px;padding:10px 16px}.screen-box.page-fullscreen{position:fixed;inset:0;z-index:10000;width:100vw!important;height:100vh;height:100dvh;max-width:none;aspect-ratio:auto;border-radius:0;background:#000;transition:none}.screen-box.page-fullscreen .fullscreen-close,.screen-box:fullscreen .fullscreen-close{display:block}.screen-box:-webkit-full-screen .fullscreen-close{display:block}.screen-box.page-fullscreen video{width:100%;height:100%;object-fit:contain}.screen-box.page-fullscreen .screen-empty{width:100%;height:100%;justify-content:center}.screen-box:-webkit-full-screen{width:100%!important;height:100%;background:#000;border-radius:0}
[hidden]{display:none!important}#formError{color:#b42318;font-size:14px}.consent{display:block;line-height:1.9;font-size:13px;margin:16px 0}.consent input{display:inline-block;width:auto;margin:0 7px 0 0}.consent a{text-decoration:underline}.member-actions{flex-wrap:wrap}.member-name{min-width:180px;overflow-wrap:anywhere}