@import url('./tokens.css');
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI Variable','Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;font-size:13px;color:var(--ink);background:var(--canvas);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit}
button{cursor:pointer}button:disabled{cursor:default;opacity:.48}
a{color:var(--teal);text-decoration:none}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #6ba7ee;outline-offset:2px}
h1,h2,h3,p{margin:0}h1{font-size:20px;line-height:1.4;font-weight:650;letter-spacing:-.35px}h2{font-size:14px;font-weight:600}h3{font-size:13px;font-weight:600}p{line-height:1.65}::selection{background:#cfe2fb}
[hidden],.hidden{display:none!important}
.app-shell{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:100vh;background:#fff}
.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:25px;padding:19px 12px 14px;background:rgba(239,240,243,.93);border-right:1px solid #d9dce1}
.brand{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:650;letter-spacing:.2px;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:28px;height:28px;flex-shrink:0;border-radius:7px;background:#2775d5;color:#fff;font-size:15px;font-weight:600}
.brand small{display:block;margin-top:2px;font-size:10px;font-weight:400;letter-spacing:.2px;color:var(--muted)}
.sidebar>.brand{padding:0 7px}.sidebar .brand small{display:none}
.workspace-label{display:none}.eyebrow{font-size:10px;letter-spacing:.5px;color:var(--muted)}
.nav{display:grid;gap:3px}
.nav button.button{justify-content:flex-start;min-height:33px;padding:7px 11px;border:0;border-radius:5px;color:#535964;background:transparent;box-shadow:none;font-size:13px;font-weight:400;text-align:left}
.nav button.button:hover{background:#e6e8ec}.nav button.button.active{background:#dce7f6;color:#1b4c87;font-weight:550}
.nav-icon{width:18px;text-align:center}
.sidebar-footer{display:grid;gap:8px;margin-top:auto;padding:13px 7px 0;border-top:1px solid #dfe2e6}
.sidebar-footer .tiny:last-of-type{line-height:1.6}.sidebar-footer .button{justify-content:flex-start;padding-left:0}
.connection-dot{display:inline-block;width:6px;height:6px;margin-right:7px;border-radius:50%;background:#35846e}
.main{min-width:0;padding:20px 24px 32px;background:#fff}
.topbar{display:none}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:36px;margin-bottom:17px}
.page-head p{display:none}.top-actions{display:flex;align-items:center;gap:8px}.avatar{display:none}
.button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:31px;padding:6px 12px;border:1px solid #cbd0d7;border-radius:6px;background:#f8f9fa;color:#303740;font-size:12px;font-weight:450;line-height:1.35;white-space:nowrap;box-shadow:0 1px 1px #17202b05}
.button:hover{background:#eff1f4}.button.primary{background:#0968d5;border-color:#0968d5;color:#fff}.button.primary:hover{background:#075ab9;border-color:#075ab9}
.button.small{min-height:26px;padding:4px 9px;font-size:11px;border-radius:5px}.button.ghost{border-color:transparent;background:transparent;color:#636b78;box-shadow:none}.button.ghost:hover{background:#eceff3}.button.danger{background:#fff7f7;border-color:#e4c4c5;color:#b43235}
.button:disabled:hover{background:#f8f9fa}.button.primary:disabled:hover{background:#0968d5}.button.danger:disabled:hover{background:#fff7f7}
.row{display:flex;align-items:center;gap:10px}.row.between{justify-content:space-between}.row.wrap{flex-wrap:wrap}.stack{display:grid;gap:16px}.stack.compact{gap:12px}.stretch{flex:1;min-width:0}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.panel{overflow:hidden;border:1px solid #dce0e5;border-radius:8px;background:#fff}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:10px 14px;border-bottom:1px solid var(--line);background:#fafbfc}
.panel-head h2{font-size:13px;font-weight:600}.panel-head p{display:none}.panel-body{padding:15px}.panel-body.flush{padding:0}
.section-title{margin:0 0 12px;font-size:12px;font-weight:600}
.muted,.subtext{color:var(--muted)}.subtext{font-size:12px;line-height:1.6}.tiny{font-size:11px;line-height:1.65;color:#6c737e}.break-word{overflow-wrap:anywhere}
.badge{display:inline-block;padding:3px 6px;border-radius:4px;background:#eef0f3;color:#666f7c;font-size:10px;line-height:1.4;white-space:nowrap;font-weight:450}.badge.good{background:#eaf4ed;color:#39754c}.badge.warn{background:#fbf1dc;color:#866729}.badge.bad{background:#fcebec;color:#b14348}
.notice{padding:10px 12px;border:1px solid #dbe5f3;border-radius:6px;background:#f4f8fe;color:#526b8d;font-size:12px;line-height:1.65}.notice.warning{background:#fffbf1;border-color:#ebdfbd;color:#816a38}.notice.error{background:#fff5f5;border-color:#eacccd;color:#aa4145}.notice.neutral{background:#f6f7f9;border-color:#e2e5e9;color:#6c737e}
.metrics{display:flex;flex-wrap:wrap;margin-bottom:20px;padding:13px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:0}
.metric{display:flex;align-items:baseline;gap:9px;padding:1px 22px;border-right:1px solid #e3e6ea;min-width:140px}.metric:first-child{padding-left:0}.metric:last-child{border-right:0}.metric-label{font-size:12px;color:#6a717d}.metric-value{font-size:19px;font-weight:600;color:#333d4b;font-variant-numeric:tabular-nums}.metric-note{display:none}
.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}th{height:32px;padding:8px 13px;background:#f6f7f9;color:#747b85;font-size:11px;font-weight:500;white-space:nowrap;border-bottom:1px solid #e0e3e7}td{height:43px;padding:9px 13px;border-top:1px solid #eceef1;color:#4a5260;vertical-align:middle}tbody tr:first-child td{border-top:0}tbody tr:hover{background:#f8faff}.table-title{font-weight:500;color:#303a49}td .subtext{margin-top:3px;font-size:11px;color:#818792}.table-actions{display:flex;gap:5px;flex-wrap:wrap}.table-actions .button{min-height:24px;padding:3px 7px;font-size:11px}
.empty{display:grid;justify-items:center;align-content:center;gap:8px;min-height:150px;padding:30px 20px;text-align:center;color:#7b8390}.empty-icon{display:none}.empty h3{font-size:13px;font-weight:450;color:#727b89}.empty p{max-width:380px;font-size:12px;line-height:1.7}.empty .button{margin-top:4px}
.field{display:grid;gap:7px}.field label{font-size:12px;font-weight:500;color:#555e6c}.input,textarea,select{width:100%;min-width:0;padding:7px 9px;min-height:31px;border:1px solid #cdd2d9;border-radius:5px;background:#fff;color:#333e4f;font-size:13px;line-height:1.4}.input::placeholder,textarea::placeholder{color:#949ca8}.input[readonly]{background:#f7f8fa;color:#727b88}textarea{resize:vertical;min-height:78px}.field-help{font-size:11px;line-height:1.6;color:#818895}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.toolbar{display:flex;align-items:center;gap:9px;margin-bottom:13px;flex-wrap:wrap}.toolbar .input{max-width:270px}.toolbar select{max-width:245px}
.file-list{min-height:220px}.file-item{display:flex;align-items:center;gap:10px;padding:9px 14px;border-bottom:1px solid #eceef1;min-height:47px}.file-item:last-child{border-bottom:0}.file-icon{display:grid;place-items:center;width:23px;height:27px;border:1px solid #dbe0e7;border-radius:4px;color:#7693b8;background:#f8faff;font-size:12px;flex-shrink:0}.file-info{flex:1;min-width:0}.file-name{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-info .tiny{font-size:10px;color:#89919d}.file-list>.subtext{padding:45px 16px}
.encrypt-toolbar{display:flex;align-items:center;gap:9px;padding:10px 12px;background:#f7f8fa;border-bottom:1px solid #dfe3e8;flex-wrap:wrap}.encrypt-toolbar select{max-width:330px;flex:1;min-width:180px}.encrypt-toolbar .toolbar-label{font-size:12px;color:#69717f}.file-heading{display:flex;justify-content:space-between;align-items:center;padding:7px 14px;font-size:11px;color:#89909b;background:#fcfcfd;border-bottom:1px solid #eceef1}.encrypt-footer{display:grid;gap:11px;padding:12px 14px;border-top:1px solid #dde2e8;background:#fafbfc}.encrypt-footer .path-value{flex:1;min-width:0}.output-row{display:flex;align-items:center;gap:10px}.output-row>label{font-size:12px;color:#6b7482;white-space:nowrap}.path-value{padding:7px 9px;min-height:30px;border:1px solid #d6dbe2;border-radius:5px;background:#fff;color:#737c8b;font-size:11px;overflow-wrap:anywhere}.encrypt-status{display:flex;justify-content:space-between;align-items:center;gap:15px}.progress-track{height:4px;overflow:hidden;margin:11px 0;border-radius:2px;background:#e8edf4}.progress-fill{height:100%;width:0;background:#3685df;transition:width .2s}.job-result-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.job-result-row .path-value{flex:1}
.dialog{width:min(470px,calc(100vw - 32px));max-height:calc(100vh - 64px);padding:0;overflow:auto;border:1px solid #cbd1da;border-radius:11px;background:#fff;color:var(--ink);box-shadow:0 14px 45px #15233626}.dialog::backdrop{background:#18212e38}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:17px 19px 14px}.dialog-head h2{font-size:15px;font-weight:600}.dialog-head .button{min-width:25px;min-height:25px;padding:0;font-size:18px;font-weight:400;color:#828a96}.dialog-body{padding:0 19px 19px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;padding:12px 19px;border-top:1px solid #e4e7eb;background:#f8f9fb}.code-list{max-height:240px;overflow:auto;padding:12px;border:1px solid #dfe4eb;border-radius:5px;background:#f7f9fc;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;line-height:1.9;user-select:all}.code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px}
.toast-region{position:fixed;right:20px;bottom:18px;z-index:100;display:grid;gap:7px;max-width:min(390px,calc(100vw - 32px));pointer-events:none}.toast{padding:10px 14px;border:1px solid #c9d0db;border-radius:7px;background:#f9fbff;color:#43546e;box-shadow:0 4px 16px #22395716;font-size:12px;line-height:1.6}.toast.error{border-color:#e2bec1;background:#fff5f5;color:#a34146}.error-inline{font-size:12px;color:#ac3f43;line-height:1.6}.error-inline:empty{display:none}
.login-shell{display:grid;place-items:center;min-height:100vh;padding:30px;background:#f3f4f6}.login-form{width:100%;max-width:350px;padding:27px;border:1px solid #d8dde4;border-radius:10px;background:#fff}.login-form>.brand{margin-bottom:23px}.login-form .brand small{font-size:11px}.login-form h2{font-size:18px;font-weight:600;margin-bottom:23px}.login-form .stack{gap:15px}.login-form .button{width:100%;min-height:33px;margin-top:3px}.login-footnote{margin-top:17px;font-size:11px;color:#848c98}
.student-shell{min-height:100vh;background:#f5f6f8}.student-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:54px;padding:10px 18px;background:rgba(245,246,248,.95);border-bottom:1px solid #d8dde3}.student-topbar .brand{font-size:15px}.student-topbar .brand small{display:none}.student-topbar .brand-mark{height:25px;width:25px;border-radius:6px;font-size:14px}.student-main{padding:15px 18px 22px;max-width:1800px;margin:auto}.student-main>.page-head{align-items:center;min-height:31px;margin-bottom:12px;gap:16px}.student-main h1{font-size:17px;font-weight:550;letter-spacing:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.student-main>.page-head>div{min-width:0;display:flex;align-items:baseline;gap:12px}.student-main>.page-head p{display:block;font-size:11px;line-height:1.5;color:#858d99;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:480px}
.student-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:16px;align-items:start}.student-grid>section.stack{gap:10px}.student-grid>aside.stack{gap:14px}.player-stage{position:relative;display:grid;place-items:center;aspect-ratio:16/9;min-width:0;overflow:hidden;border:1px solid #111318;border-radius:4px;background:#151619;color:#b5b9c0}.player-stage video{display:block;width:100%;height:100%;background:#111214}.player-stage,.player-stage video,.watermark,.player-toolbar{backdrop-filter:none!important;-webkit-backdrop-filter:none!important}.player-placeholder{position:absolute;inset:0;display:grid;align-content:center;justify-items:center;gap:12px;padding:25px;text-align:center;pointer-events:none}.player-symbol{display:grid;place-items:center;width:45px;height:45px;border:1px solid #ffffff2e;border-radius:50%;font-size:18px;color:#c1c4cc}.player-placeholder h2{font-size:14px;font-weight:400;color:#bcc1ca}.player-placeholder p{font-size:11px;color:#777e89;max-width:300px}.watermark{position:absolute;z-index:3;pointer-events:none;white-space:nowrap;color:#fff;opacity:.28;text-shadow:0 1px 3px #000;font-size:12px;padding:12px;transition:top 1s,left 1s}.player-stage:fullscreen{width:100vw;height:100vh;aspect-ratio:auto;border-radius:0;border:0;background:#08090b}.player-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:9px 0}.player-toolbar select{width:93px;min-height:28px;padding:5px 7px;font-size:12px}.student-statusline{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #dde2e8;padding-top:9px;font-size:11px;color:#7b8390;gap:12px}
.student-grid aside .panel{border-radius:6px;border-color:#dce1e7;background:#fbfcfd}.student-grid aside .panel-head{padding:9px 10px;min-height:39px;background:#f0f2f5}.student-grid aside .panel-body{padding:0}.lesson-list{list-style:none;margin:0;padding:3px}.lesson-button{display:flex;align-items:center;gap:9px;width:100%;padding:9px 8px;border:0;border-radius:4px;text-align:left;color:#445063;background:transparent}.lesson-button:hover{background:#edf1f7}.lesson-button.selected{background:#dfeaf9;color:#275f9f}.lesson-number{display:grid;place-items:center;width:20px;height:24px;flex-shrink:0;color:#7b91ad;font-size:10px}.lesson-title{font-size:12px;line-height:1.6}.lesson-detail{margin-top:3px;font-size:10px;color:#8b94a1}.library-list{display:grid;gap:0}.library-item{display:block;width:100%;padding:11px 12px;border:0;border-bottom:1px solid #e6e9ee;border-radius:0;background:transparent;text-align:left;color:#53627a}.library-item:last-child{border-bottom:0}.library-item:hover{background:#eef2f7}.library-item.selected{background:#e8eff9}.library-item h3{margin-bottom:4px;font-size:12px;font-weight:500}.library-item p{font-size:10px;color:#8a94a2}.library-list>.subtext{padding:12px;font-size:11px}
.mode-page{display:grid;place-items:center;min-height:100vh;padding:30px}.mode-content{width:100%;max-width:760px}.mode-head{display:grid;justify-items:center;gap:14px;margin-bottom:24px;text-align:center}.mode-head h1{font-size:20px}.mode-head p{font-size:12px;color:#818996}.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.mode-card{display:flex;flex-direction:column;gap:13px;padding:20px;border:1px solid #dce1e7;border-radius:8px;background:#fff;color:var(--ink)}.mode-card h2{font-size:14px}.mode-card p{font-size:12px;color:#818995;line-height:1.8}.mode-card .button{margin-top:auto}.mode-footer{text-align:center;margin-top:19px;font-size:11px;color:#8b94a0}.drop-icon{display:grid;place-items:center;width:29px;height:29px;border:1px solid #dce5f1;border-radius:6px;background:#f2f7fd;color:#6c91c2;font-size:16px}.policy-row{display:flex;gap:12px}.policy-cell{flex:1;padding:11px 6px;background:#f5f7fa;border:1px solid #e5e9f0;border-radius:5px;text-align:center}.policy-cell strong{display:block;font-size:16px;font-weight:500;color:#6b82a0}.policy-cell span{display:block;margin-top:5px;font-size:10px;color:#8e99a8}
.loading{padding:28px;text-align:center;font-size:12px;color:#7e8794}.loading::before{content:'';display:inline-block;width:11px;height:11px;margin-right:8px;border:2px solid #dfe6ef;border-top-color:#6a94cb;border-radius:50%;vertical-align:-2px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.divider{border:0;border-top:1px solid var(--line);margin:3px 0}.back-link{display:inline-block;margin-bottom:15px;font-size:12px;color:#778393}
@supports ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.sidebar,.student-topbar{-webkit-backdrop-filter:blur(12px) saturate(105%);backdrop-filter:blur(12px) saturate(105%)}}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.sidebar{background:#f0f1f4}.student-topbar{background:#f5f6f8}}
@media(prefers-reduced-transparency:reduce){.sidebar{background:#f0f1f4}.student-topbar{background:#f5f6f8}.sidebar,.student-topbar{backdrop-filter:none;-webkit-backdrop-filter:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition:none!important;scroll-behavior:auto!important}}
@media(min-width:1600px){.main{padding:22px 28px}.student-grid{grid-template-columns:minmax(0,1fr) 265px}}
@media(max-width:1100px){.app-shell{grid-template-columns:200px minmax(0,1fr)}.sidebar{padding-left:10px;padding-right:10px}.main{padding:18px 20px}.grid-2{grid-template-columns:1fr}.metric{padding:1px 15px;min-width:120px}.student-grid{grid-template-columns:minmax(0,1fr) 220px}.student-main>.page-head p{max-width:320px}}
@media(max-width:760px){.app-shell{display:block}.sidebar{position:static;height:auto;gap:12px;padding:12px;border-right:0;border-bottom:1px solid #d9dce1}.sidebar>.brand{padding:0 3px}.sidebar-footer{display:none}.nav{display:flex;overflow:auto;gap:3px}.nav button.button{white-space:nowrap;min-height:30px;font-size:12px;padding:6px 9px}.main{padding:16px 13px}.page-head{gap:12px;margin-bottom:14px}h1{font-size:19px}.metrics{padding:11px 0;gap:10px 0}.metric{min-width:50%;padding:0 12px;border-right:0}.metric:first-child{padding-left:12px}.metric-value{font-size:18px}.form-grid{grid-template-columns:1fr}.panel-body{padding:13px}.panel-head{padding:10px 12px}.toolbar{gap:8px}.toolbar .input{max-width:none}.encrypt-toolbar{gap:7px}.encrypt-toolbar select{max-width:none;min-width:170px}.encrypt-status{align-items:start}.encrypt-status>.tiny{max-width:45%}.file-list{min-height:185px}.output-row{flex-wrap:wrap}.output-row .path-value{flex-basis:calc(100% - 73px)}.output-row>label{width:45px}.output-row>.button{margin-left:55px}.student-topbar{padding:10px 12px;gap:10px;flex-wrap:wrap}.student-topbar .tiny{display:none}.student-topbar .button{font-size:11px;padding:5px 9px}.student-main{padding:13px 12px 18px}.student-grid{grid-template-columns:1fr;gap:14px}.student-main>.page-head>div{display:block}.student-main>.page-head p{margin-top:4px;max-width:300px}.student-main h1{font-size:16px}.player-toolbar{gap:8px}.player-toolbar .row{gap:7px}.student-statusline{flex-wrap:wrap;gap:5px}.mode-grid{grid-template-columns:1fr}.mode-page{padding:25px 18px}.mode-card{padding:17px}.mode-head h1{font-size:20px}.dialog{border-radius:10px}.dialog-head{padding:16px}.dialog-body{padding:0 16px 16px}.dialog-actions{padding:12px 16px}.login-shell{padding:22px}.login-form{padding:24px}.table-actions{gap:4px}th,td{padding-left:11px;padding-right:11px}}
.launcher{max-width:460px}.launcher>.brand{margin-bottom:21px}.launcher-list{overflow:hidden;border:1px solid #d9dee6;border-radius:8px;background:#fff;margin-bottom:15px}.launcher-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 17px;border-bottom:1px solid #e8ebef;color:#384456}.launcher-row:last-child{border-bottom:0}.launcher-row:hover{background:#f0f5fc}.launcher-row h2{font-size:13px;font-weight:550}.launcher-row p{margin-top:5px;font-size:11px;color:#8791a0}.launcher-row>span{font-size:23px;font-weight:300;color:#a9b2be}
/* Batch operations keep the native utility layout and update only affected rows. */
.queue-options{display:flex;align-items:center;gap:9px;padding:8px 12px;border-bottom:1px solid #e5e8ed;background:#fcfcfd;flex-wrap:wrap}.checkbox-label{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:#69717d;white-space:nowrap}.checkbox-label input{width:13px;height:13px;min-height:0;margin:0;padding:0;accent-color:#176cce}.queue-options .button.small{font-size:10px;min-height:24px;padding:3px 7px}.queue-options #queue-import-summary{font-size:10px}.file-list{max-height:320px;min-height:185px;overflow:auto}.file-item{align-items:center;min-height:53px}.file-location{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:10px;color:#8a93a0;margin-top:3px}.file-size{flex-shrink:0;min-width:60px;text-align:right;font-size:10px;color:#8a93a0}.queue-file-error{margin-top:4px;font-size:11px;line-height:1.6;color:#b14c50;overflow-wrap:anywhere}.queue-file-track{height:3px;max-width:230px;margin-top:6px;border-radius:2px;background:#e6edf6;overflow:hidden}.queue-file-fill{height:100%;width:0;background:#478ad9;transition:width .2s}.file-item>.badge{min-width:48px;text-align:center}.inspector-search{padding:7px 8px;border-bottom:1px solid #e4e8ee;background:#f8fafc}.inspector-search .input{min-height:27px;padding:5px 7px;font-size:11px}.student-grid .lesson-list{max-height:380px;overflow:auto}.student-grid .library-list{max-height:270px;overflow:auto}.import-status{font-size:11px;flex-wrap:wrap;justify-content:flex-end;gap:6px}.import-status .button.small{font-size:10px;min-height:22px;padding:2px 5px}.import-error{color:#af4d51}.student-statusline{align-items:center;min-height:30px}.queue-options .checkbox-label{margin-right:3px}
@media(max-width:760px){.queue-options{gap:7px}.file-size{display:none}.queue-options .stretch{display:none}.queue-options #queue-import-summary{flex-basis:calc(100% - 125px)}.student-grid .lesson-list,.student-grid .library-list{max-height:280px}.player-toolbar .checkbox-label{font-size:10px}.import-status{justify-content:flex-start}}
.output-history{display:grid;gap:8px}.package-delivery-note{margin-bottom:2px;color:#5e7290;font-size:12px}.package-count{white-space:nowrap;flex-shrink:0}.package-output-row{flex-wrap:nowrap}.package-output-row .path-value{font-size:10px;min-width:0;flex:1}.package-output-row .button{flex-shrink:0}
/* Visible identity marks are lightweight DOM text; no video filters or blur. */
.watermark.watermark-grid{inset:0;left:0;top:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:repeat(3,minmax(0,1fr));width:100%;height:100%;padding:15px 10px 28px;opacity:1;white-space:normal;transition:none;overflow:hidden;user-select:none}.watermark-cell{display:flex;align-items:center;justify-content:center;min-width:0;overflow:hidden}.watermark-tile{display:flex;flex-direction:column;align-items:center;gap:3px;max-width:96%;transform:translate(var(--mark-x,0),var(--mark-y,0)) rotate(-12deg);color:#fff;opacity:.13;text-shadow:0 1px 2px #000b;font-size:11px;line-height:1.4;white-space:nowrap}.watermark-cell:nth-child(5) .watermark-tile{opacity:.10}.watermark-identity{display:flex;align-items:center;max-width:100%;min-width:0}.watermark-student{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:145px}.watermark-license{flex-shrink:0}.watermark-clock{font-size:10px;font-variant-numeric:tabular-nums;letter-spacing:.15px}.privacy-curtain{position:absolute;inset:0;z-index:10;display:grid;place-items:center;background:#17191d;color:#d2d6df;pointer-events:auto}.privacy-curtain-content{display:grid;justify-items:center;gap:13px;padding:22px;text-align:center;max-width:350px}.privacy-curtain h2{font-size:15px;font-weight:500;color:#d2d6df}.privacy-curtain p{font-size:12px;line-height:1.7;color:#8f97a5}.privacy-curtain .button{margin-top:3px}.privacy-toggle-label{margin-left:3px}.student-statusline #capture-status{font-size:10px;min-height:22px;padding:2px 4px;white-space:nowrap}.player-stage video::-webkit-media-controls-fullscreen-button{display:none!important}
@media(prefers-reduced-motion:reduce){.watermark-tile{transform:rotate(-12deg)}}
@media(max-width:1100px){.privacy-toggle-label{font-size:10px}.student-statusline{flex-wrap:wrap}.watermark-student{max-width:120px}}

/* Comparison builds keep the ordinary player layout; native pixels have their own view. */
.comparison-controls{display:flex;align-items:center;flex-wrap:wrap;gap:7px 13px;padding:7px 0;border-top:1px solid #e1e4e9}.comparison-badge{display:inline-flex;align-items:center;padding:3px 6px;border:1px solid #d3d9e2;border-radius:4px;font-size:10px;color:#626d7b;background:#f5f6f8}.native-video-surface{width:100%;height:100%;background:#111214}.native-player-frame{min-width:0}.native-player-controls{display:flex;align-items:center;gap:10px;padding:8px 9px;background:#f0f2f5;border:1px solid #dce1e8;border-top:0;border-radius:0 0 4px 4px}.native-player-controls>.button{flex-shrink:0;min-height:25px;padding:4px 9px}.native-player-controls input[type=range]{min-height:0;height:15px;padding:0;margin:0;accent-color:#65778c;cursor:pointer}.native-seek{flex:1;min-width:45px}.native-volume{width:70px;flex-shrink:0}.native-player-clock{font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap;color:#626d7b}.native-player-frame:fullscreen{display:flex;flex-direction:column;width:100vw;height:100vh;background:#08090b}.native-player-frame:fullscreen .player-stage{flex:1;width:100%;height:0;min-height:0;aspect-ratio:auto;border:0;border-radius:0}.native-player-frame:fullscreen .native-player-controls{flex-shrink:0;border:0;border-radius:0;background:#20242b;color:#d7dce4}.native-player-frame:fullscreen .native-player-clock{color:#b7c0cc}.native-player-frame:fullscreen .native-player-controls .button{color:#c8d0dc;background:#303641;border-color:#414957}
@media(max-width:760px){.native-player-controls{gap:7px;padding:7px}.native-volume{width:48px}.native-player-clock{font-size:10px}.comparison-controls{gap:6px 9px}}
.native-fullscreen-mode{overflow:hidden}.native-fullscreen-mode .student-topbar,.native-fullscreen-mode .student-main>.page-head,.native-fullscreen-mode .student-grid>aside,.native-fullscreen-mode .player-toolbar,.native-fullscreen-mode .comparison-controls,.native-fullscreen-mode .student-statusline,.native-fullscreen-mode #playback-error{display:none!important}.native-fullscreen-mode .student-main{padding:0;height:100vh}.native-fullscreen-mode .student-grid{display:block;height:100vh}.native-fullscreen-mode .student-grid>section.stack{display:block;height:100vh}.native-fullscreen-mode .student-grid>section.stack>div:first-child{height:100%}.native-fullscreen-mode .native-player-frame{display:flex;flex-direction:column;height:100%;width:100%;background:#08090b}.native-fullscreen-mode .native-player-stage{flex:1;width:100%;height:0;min-height:0;aspect-ratio:auto;border:0;border-radius:0}.native-fullscreen-mode .native-player-controls{flex-shrink:0;border:0;border-radius:0;background:#20242b;color:#d7dce4}.native-fullscreen-mode .native-player-clock{color:#b7c0cc}.native-fullscreen-mode .native-player-controls .button{color:#c8d0dc;background:#303641;border-color:#414957}