:root{color-scheme:dark;--bg:#0e1012;--panel:#181b1e;--line:#303337;--muted:#a9afb6;--text:#f5f4f1;--orange:#ff6545;--soft:#251e1a;font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a.button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--orange);outline-offset:4px}.header{height:108px;max-width:1320px;margin:auto;padding:0 48px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.wordmark{font-size:27px;font-weight:900;letter-spacing:-1.3px;line-height:1.1}.wordmark span{display:block;font-size:9px;letter-spacing:3.8px;font-weight:600;margin-top:7px}.header-right{display:flex;align-items:center;gap:24px}.private-dot{font-size:10px;letter-spacing:1.8px;color:var(--muted)}.private-dot:before{content:"";display:inline-block;width:6px;height:6px;background:var(--orange);border-radius:50%;margin-right:9px}main{max-width:1224px;min-height:calc(100vh - 200px);margin:auto;padding:58px 0 70px}h1,h2,h3,p{margin-top:0}h1{font-size:49px;letter-spacing:-2px;line-height:1.22;margin-bottom:23px}h2{font-size:25px;letter-spacing:-.8px}h3{font-size:19px;line-height:1.5}p{color:var(--muted)}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--orange);margin-bottom:22px}.login-layout{display:grid;grid-template-columns:1.18fr 1fr;gap:100px;align-items:center;padding:28px 20px}.intro{padding:20px 0}.intro>p{font-size:17px;line-height:1.9;max-width:380px}.intro h1 em{color:var(--orange);font-style:normal}.process{margin-top:53px;display:flex;gap:20px}.process div{border-top:1px solid var(--line);padding-top:18px;flex:1;font-size:13px}.process small{display:block;font-size:10px;color:var(--orange);margin-bottom:8px}.auth-card{padding:37px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.auth-card h2{margin-bottom:8px}.auth-card>p{font-size:13px;margin-bottom:26px}label{display:block;font-size:13px;margin-bottom:8px;font-weight:600}input:not([type=checkbox]),select,textarea{background:#101315;color:var(--text);border:1px solid #3c4147;border-radius:7px;display:block;width:100%;padding:13px 14px;min-width:0}textarea{resize:vertical;min-height:92px}.field{margin-bottom:18px}.button,button.primary{display:inline-flex;align-items:center;justify-content:center;background:var(--orange);color:#130e0b;border:0;border-radius:7px;padding:12px 19px;font-weight:750;min-height:47px}.full{width:100%}.quiet,.outline{background:transparent;color:var(--text);border:1px solid var(--line);padding:8px 14px;border-radius:7px}.quiet{font-size:12px}.tiny{font-size:12px}.helper{font-size:12px;color:var(--muted);margin:15px 0 0}.auth-note{border-top:1px solid var(--line);margin-top:28px;padding-top:23px;font-size:12px;color:var(--muted)}.auth-note strong{display:block;color:var(--text);font-size:13px;margin-bottom:7px}.error{color:#ffad96;font-size:13px;white-space:pre-wrap}.error:empty{display:none}.check{display:flex;gap:10px;align-items:flex-start;font-weight:400;color:#d0d4d8;font-size:12px;line-height:1.7;margin:20px 0}.check input{accent-color:var(--orange);margin-top:4px;flex-shrink:0}.terms{background:#111416;border:1px solid var(--line);padding:14px;border-radius:7px;font-size:12px;color:var(--muted);line-height:1.8}.hero{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:36px;gap:20px}.hero h1{font-size:39px;margin:0 0 11px}.hero p{margin:0;font-size:14px}.account{font-size:12px;color:var(--muted);text-align:right}.account strong{display:block;color:var(--text);font-size:13px}.notice{border:1px solid #503426;background:var(--soft);padding:19px 24px;border-radius:9px;display:flex;align-items:center;gap:20px;margin-bottom:33px}.notice b{font-size:13px;color:#ffb292;white-space:nowrap}.notice p{margin:0;font-size:12px;color:#d2bcb0}.tabs{display:flex;gap:8px;margin-bottom:27px;flex-wrap:wrap}.tabs button{background:transparent;border:1px solid var(--line);border-radius:6px;color:var(--muted);padding:9px 18px;font-size:13px}.tabs button.active{background:var(--text);color:var(--bg);border-color:var(--text)}.library-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.library-top h2{margin:0;font-size:20px}.library-top span{font-size:12px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:21px}.demo-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel);display:flex;flex-direction:column}.demo-cover{height:115px;padding:24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:linear-gradient(130deg,#292721,#181b1e)}.demo-cover span{font-family:monospace;font-size:11px;letter-spacing:2px;color:#b8b09e}.wave{height:40px;display:flex;gap:5px;align-items:center}.wave i{width:3px;background:#ff8b65;border-radius:3px;height:22px}.wave i:nth-child(3n){height:39px}.wave i:nth-child(2n){height:12px}.wave i:nth-child(4n){height:30px}.card-body{padding:23px;display:flex;flex-direction:column;flex:1}.tag{font-size:10px;color:#ffac89;letter-spacing:1px;margin-bottom:12px}.card-body h3{margin-bottom:10px}.card-body>p{font-size:13px;margin-bottom:25px;white-space:pre-wrap;flex:1}.card-meta{font-size:11px;color:#9299a1;display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;margin-bottom:18px}.card-actions{display:flex;gap:10px;flex-wrap:wrap}.card-actions .button{font-size:12px;flex:1}.empty{border:1px dashed #42474d;padding:55px 24px;text-align:center;border-radius:12px}.empty h3{margin-bottom:7px}.empty p{margin:0;font-size:13px}.section{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:28px;margin-bottom:22px}.section h2{font-size:21px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-grid .wide{grid-column:1/-1}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}th,td{padding:13px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:11px;color:var(--muted);font-weight:500}.status{font-size:11px;color:#b0d7bf}.muted{color:var(--muted)}.link-box{font-size:12px;word-break:break-all;padding:15px;background:#111416;border:1px solid #533b30;border-radius:8px;margin-top:16px}.result{font-size:13px;white-space:pre-wrap;margin-top:16px}.banner{font-size:12px;color:#ffbca4;background:#271f1c;padding:12px 16px;border-radius:7px;margin-bottom:24px}.receipt{margin-top:12px;font-size:12px;color:#a9c5b3}.download-confirm{margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}audio{width:100%;height:35px;margin-top:14px}footer{max-width:1224px;margin:auto;padding:27px 0;border-top:1px solid var(--line);font-size:11px;color:#7c848d}footer span{margin:0 10px}.hidden{display:none!important}.loading{padding:50px;color:var(--muted)}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#f3f1ec;color:#181818;padding:12px 22px;border-radius:8px;font-size:13px;box-shadow:0 8px 30px #0008;display:none;z-index:10}#toast.show{display:block}.skip{position:fixed;top:-80px;left:20px;background:var(--orange);color:black;padding:10px;z-index:20}.skip:focus{top:10px}@media(max-width:1300px){main,footer{margin-left:48px;margin-right:48px}.login-layout{gap:60px}}@media(max-width:900px){.login-layout{gap:35px;padding:0}.intro h1{font-size:40px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-grid{grid-template-columns:1fr}.auth-card{padding:26px}.process{gap:10px}}@media(max-width:650px){.header{height:86px;padding:0 23px}.wordmark{font-size:23px}.header-right{gap:10px}.private-dot{font-size:8px;letter-spacing:.7px}main{margin:0;padding:32px 22px 48px}.login-layout{display:block}.intro{padding:0}.intro h1{font-size:37px}.intro>p{font-size:14px;margin-bottom:22px}.process{display:none}.auth-card{margin-top:28px}.eyebrow{margin-bottom:15px}.cards{grid-template-columns:1fr}.hero{align-items:flex-start;flex-direction:column;gap:15px}.hero h1{font-size:33px}.account{text-align:left}.notice{align-items:flex-start;gap:8px;flex-direction:column;padding:18px}.form-grid{grid-template-columns:1fr}.section{padding:21px}.form-grid .wide{grid-column:auto}footer{margin:0 22px;font-size:10px}.header .quiet{padding:6px 8px}.demo-cover{height:90px}}
.skip:not(:focus){width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.setup-layout{max-width:540px;margin:0 auto}.setup-layout h1{font-size:29px;letter-spacing:-1px;line-height:1.4}.setup-layout input{font-size:16px}.setup-layout input[readonly]{color:var(--muted)}@media(max-width:650px){.setup-layout .auth-card{margin-top:0;padding:23px}.setup-layout h1{font-size:25px}.setup-layout .helper{overflow-wrap:anywhere}}
.security-notice{border:1px solid #694131;border-left:4px solid var(--orange);background:#241d19;padding:21px 24px;border-radius:10px;margin:0 0 28px}
.security-notice h2{font-size:14px;color:#ffc0a6;letter-spacing:0;margin:0 0 7px}
.security-notice>strong{display:block;font-size:16px;color:#fff0e6;margin-bottom:7px}
.security-notice p{font-size:13px;line-height:1.9;color:#d9c9be;margin:0;overflow-wrap:anywhere}
.submission-panel{border-top:1px solid var(--line);margin-top:23px;padding-top:21px;min-width:0}
.submission-compose>summary{cursor:pointer;color:#ffbc9c;font-weight:700;font-size:13px;padding:5px 0}.submission-compose>summary:focus-visible{outline:2px solid var(--orange);outline-offset:4px}.submission-content{padding-top:19px}
.submission-panel h4,.submission-history h4{font-size:15px;margin:0 0 10px}
.submission-panel .field{margin-bottom:14px}.submission-panel label{font-size:12px}
.submission-panel textarea{font-size:13px;min-height:105px;line-height:1.8}
.submission-panel input[type=file]{padding:10px;font-size:11px;overflow:hidden}
.submission-panel input[type=file]::file-selector-button{border:1px solid #52575c;border-radius:4px;background:#252a2e;color:var(--text);padding:5px 8px;margin-right:8px}
.submission-panel .helper{margin-top:8px;font-size:11px}
.submission-form{padding-top:8px}.submission-form button[type=submit]{font-size:13px}
.submission-progress:empty,.review-result:empty{display:none}.submission-progress,.review-result{color:#bcdec8;white-space:pre-wrap}
.submission-form textarea[readonly]{border-color:#655443;background:#1d1c19;color:#ded4ca}
.submission-history{margin-top:23px;min-width:0}.submission-history h4:not(:first-child){margin-top:20px}
.submission-entry{border:1px solid #394047;border-radius:8px;background:#121619;margin:10px 0;min-width:0;overflow:hidden}
.submission-entry>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:9px;padding:13px 14px;font-size:12px;color:#dbe0e3}
.submission-entry>summary::-webkit-details-marker{display:none}
.submission-entry>summary::before{content:'+';color:var(--orange);font-size:18px;line-height:1;width:12px;flex-shrink:0}
.submission-entry[open]>summary::before{content:'−'}
.submission-entry>summary:focus-visible{outline:2px solid var(--orange);outline-offset:-3px}
.submission-entry>summary>span:first-of-type{flex:1;min-width:0;overflow-wrap:anywhere}
.submission-status{border-radius:4px;padding:2px 6px;font-size:10px;background:#29322e;color:#c4ddcd;white-space:nowrap}
.submission-status[data-status=changes_requested]{background:#473026;color:#ffbd9c}.submission-status[data-status=draft]{background:#34312a;color:#dbcdb5}
.submission-detail{border-top:1px solid var(--line);padding:16px;min-width:0}
.submission-detail h5{font-size:12px;margin:12px 0 7px;color:#f0e3d9}
.submission-detail h5:first-child{margin-top:0}
.submission-lyrics,.submission-note,.submission-feedback p{font:inherit;font-size:13px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;margin:0 0 12px;color:#ccd2d6}
.submission-lyrics{max-height:370px;overflow-y:auto;padding:12px;background:#0e1113;border-radius:5px}
.submission-feedback{border-left:2px solid #bd7959;padding:10px 13px;background:#231e1a;margin:15px 0}
.submission-feedback small{color:var(--muted);font-size:10px}.submission-feedback p{margin-bottom:0}
.submission-audio{margin:13px 0}.submission-audio audio{margin-top:0}.submission-download{display:inline-block;font-size:11px;margin-top:9px}
.review-filters{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}.review-filters .field{min-width:0;margin-bottom:6px}
.review-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start}.review-groups>.empty{grid-column:1/-1}
.review-group{min-width:0;border-top:1px solid #51565b;padding-top:18px}.review-group header{margin-bottom:16px}.review-group header h3{font-size:18px;margin-bottom:5px;overflow-wrap:anywhere}
.review-group header p{font-size:12px;overflow-wrap:anywhere;margin:0}
.review-form{padding-top:16px;border-top:1px solid var(--line);margin-top:17px}.review-form textarea{font-size:13px;min-height:135px;line-height:1.8}
.review-form button{font-size:12px}.review-form .field{margin-bottom:14px}#load-more-reviews{margin-top:22px;font-size:13px}
@media(max-width:900px){.review-groups{grid-template-columns:1fr}}
@media(max-width:650px){.security-notice{padding:18px;margin-bottom:23px}.security-notice>strong{font-size:15px}.security-notice p{font-size:12px}.review-filters{grid-template-columns:1fr;gap:10px}.submission-detail{padding:13px}.submission-entry>summary{padding:12px 11px;gap:7px}}
@media(max-width:650px){input:not([type=checkbox]):not([type=file]),select,textarea,.submission-panel textarea,.review-form textarea{font-size:16px}.account{max-width:100%;overflow-wrap:anywhere}#toast{width:calc(100% - 32px);max-width:480px}}

/* Online classes: extend the existing library components without changing them. */
.online-timezone{font-size:12px;margin:0 0 25px;overflow-wrap:anywhere}
.online-timezone strong{color:var(--text);font-weight:600}
.online-class,.online-admin-class{min-width:0}
.online-class-heading,.online-session-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.online-class-heading h2{margin-bottom:10px;overflow-wrap:anywhere}
.online-class-heading .tag{margin-bottom:7px}
.online-description{font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}
.online-policy-note{background:#251e1a;border-left:2px solid #b67b5e;padding:12px 15px;font-size:12px;line-height:1.8;color:#d6c2b6;margin:17px 0 22px;overflow-wrap:anywhere}
.online-sessions{display:grid;gap:14px}
.online-session{border:1px solid var(--line);border-radius:9px;background:#121619;padding:21px;min-width:0}
.online-session-heading h3{font-size:17px;margin-bottom:6px;overflow-wrap:anywhere}
.online-session-heading p{font-size:12px;margin:0}
.online-badge{display:inline-block;font-size:11px;white-space:nowrap;border:1px solid #494039;border-radius:5px;padding:3px 8px;color:#e3c4b2;flex-shrink:0}
.online-session-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:19px}
.online-session-actions button,.online-join-result .button{font-size:13px;min-height:47px}
.online-join-result{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:14px}
.online-join-result:empty{display:none}
.online-expiry{font-size:12px;color:#c3d8c9;margin:15px 0 0}
.online-session-error{margin:12px 0 0}
.online-video-frame{position:relative;margin-top:20px;border:1px solid #3a4148;border-radius:7px;overflow:hidden;background:#000;aspect-ratio:16/9;isolation:isolate}
.online-video-frame video{display:block;width:100%;height:100%;max-width:100%;object-fit:contain;background:#000}
.online-screen-mark{position:absolute;top:13%;right:4%;max-width:80%;z-index:1;pointer-events:none;color:#fff9;text-shadow:0 1px 3px #000;font-size:clamp(10px,1.3vw,15px);line-height:1.6;text-align:right;overflow-wrap:anywhere;user-select:none}
.online-video-note{margin:10px 0 0;line-height:1.8}
.online-player-status{color:#ffc3ac;margin:8px 0 0}
.online-player-status:empty{display:none}
.online-form-result{color:#bcdec8;white-space:pre-wrap}
.online-form-result:empty{display:none}
.online-form{min-width:0}
.online-form .field,.online-form .form-grid{min-width:0}
.online-form input[type=file]{font-size:12px;padding:11px;max-width:100%;overflow:hidden}
.online-form button[type=submit]{font-size:13px;max-width:100%}
.online-admin-class>summary{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;list-style:none}
.online-admin-class>summary::-webkit-details-marker,.online-admin-session>summary::-webkit-details-marker{display:none}
.online-admin-class>summary>span:first-child{flex:1;min-width:0}
.online-admin-class>summary .tag{display:block;margin-bottom:5px}
.online-admin-class>summary strong{display:block;font-size:20px;overflow-wrap:anywhere}
.online-admin-class>summary:after,.online-admin-session>summary:after{content:'+';color:var(--orange);font-size:22px;flex-shrink:0}
.online-admin-class[open]>summary:after,.online-admin-session[open]>summary:after{content:'−'}
.online-admin-class>summary:focus-visible,.online-admin-session>summary:focus-visible,.online-add-session>summary:focus-visible{outline:2px solid var(--orange);outline-offset:5px}
.online-admin-class-body{padding-top:27px;margin-top:23px;border-top:1px solid var(--line)}
.online-admin-part{border-top:1px solid #464039;margin-top:30px;padding-top:25px;min-width:0}
.online-admin-part h3{margin-bottom:12px}
.online-enrollment-form{max-width:620px}
.online-access-list{list-style:none;padding:0;margin:20px 0 0}
.online-access-list li{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid var(--line);font-size:13px}
.online-access-list li>span{min-width:0;overflow-wrap:anywhere}
.online-access-list small{display:block;color:var(--muted);font-size:11px;margin-top:5px}
.online-access-list button{flex-shrink:0;min-height:42px}
.online-admin-session{border:1px solid var(--line);border-radius:8px;background:#121619;margin:12px 0;min-width:0}
.online-admin-session>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:14px;padding:17px;font-size:13px}
.online-admin-session>summary>span:first-child{font-weight:700;flex:1;min-width:0;overflow-wrap:anywhere}
.online-admin-session>summary>span:nth-child(2){font-size:11px;color:var(--muted)}
.online-admin-session-body{border-top:1px solid var(--line);padding:22px;min-width:0}
.online-replay-admin{border-top:1px solid #514237;margin-top:28px;padding-top:22px}
.online-replay-admin h4{font-size:15px;margin:0 0 12px}
.online-replay-admin>.online-form{margin-top:25px}
.online-grants{margin-top:26px}.online-grants h5{font-size:13px;margin:0 0 10px}
.online-add-session{margin-top:22px;padding-top:17px;border-top:1px solid var(--line)}
.online-add-session>summary{cursor:pointer;color:#ffbc9c;font-size:14px;font-weight:700;padding:5px 0}
.online-add-session>.online-form{padding-top:21px}
@media(max-width:650px){
  .online-class-heading,.online-session-heading{flex-direction:column;gap:10px}
  .online-session{padding:17px}
  .online-session-actions{align-items:stretch;flex-direction:column;gap:9px}
  .online-session-actions button{width:100%}
  .online-admin-class>summary{gap:10px;flex-wrap:wrap}
  .online-admin-class>summary strong{font-size:18px}
  .online-admin-class>summary .online-badge{font-size:10px}
  .online-admin-session>summary{flex-wrap:wrap;gap:7px;padding:14px}
  .online-admin-session>summary>span:nth-child(2){width:100%;order:3}
  .online-admin-session-body{padding:16px}
  .online-access-list li{align-items:flex-start;flex-direction:column;gap:9px}
  .online-form button[type=submit]{width:100%;font-size:12px}
  .online-video-frame{margin-inline:-5px}
  .online-screen-mark{font-size:10px;top:10%}
  .online-timezone{font-size:11px;line-height:1.8}
  .online-policy-note{padding:11px 12px}
}