:root{
  --navy:#172247;--green:#0d7a54;--mint:#eaf7f2;--ink:#172033;--muted:#6d7684;
  --line:#e5e8ee;--soft:#f5f6f8;--white:#fff;--shadow:0 8px 28px rgba(23,34,71,.08);
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}body{margin:0;background:#f7f7f5;color:var(--ink)}button,input,textarea,select{font:inherit}
button{cursor:pointer}.cb-loading{min-height:100vh;display:grid;place-items:center;color:var(--muted)}
.cb-top{height:64px;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;position:sticky;top:0;z-index:10}
.cb-brand{display:flex;align-items:center;gap:11px;font-weight:750}.cb-brand img{width:28px;height:auto}.cb-top .spacer{flex:1}.cb-link{border:0;background:transparent;color:var(--muted);text-decoration:none}
.cb-shell{max-width:1180px;margin:0 auto;padding:34px 24px 72px}.cb-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:24px}
.cb-head h1{font-size:32px;letter-spacing:-.04em;margin:0 0 7px}.cb-head p{margin:0;color:var(--muted)}
.cb-btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 15px;border-radius:12px;font-weight:700}
.cb-btn.primary{background:var(--navy);border-color:var(--navy);color:#fff}.cb-btn.green{background:var(--green);border-color:var(--green);color:#fff}.cb-btn.small{padding:7px 11px;font-size:13px}.cb-btn:disabled{opacity:.45;cursor:default}
.cb-panel{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 1px 2px rgba(0,0,0,.02);overflow:hidden;margin-bottom:18px}
.cb-panel-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}.cb-panel-head h2{font-size:16px;margin:0}
.cb-body{padding:20px}.cb-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.cb-field{display:flex;flex-direction:column;gap:7px}.cb-field.full{grid-column:1/-1}.cb-field label{font-size:12px;font-weight:700;color:var(--muted)}
.cb-field input,.cb-field textarea,.cb-field select{width:100%;border:1px solid #d8dde5;background:#fff;border-radius:12px;padding:11px 12px;outline:none}.cb-field textarea{min-height:94px;resize:vertical}.cb-field input:focus,.cb-field textarea:focus,.cb-field select:focus{border-color:#8aa0b9;box-shadow:0 0 0 3px rgba(23,34,71,.06)}
.cb-checks{display:flex;gap:18px;flex-wrap:wrap;font-size:13px}.cb-checks label{display:flex;gap:7px;align-items:center}
.cb-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.cb-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 1px 1px rgba(0,0,0,.02)}
.cb-card h3{margin:3px 0 8px;font-size:18px;letter-spacing:-.025em}.cb-meta{font-size:13px;color:var(--muted);line-height:1.6}.cb-code{font:800 18px/1.1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.08em;color:var(--navy)}
.cb-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.cb-status{display:inline-flex;padding:4px 8px;border-radius:999px;font-size:11px;font-weight:750;background:#eef1f5;color:#56606e}.cb-status.live{background:#e8f7ef;color:#087044}.cb-status.locked{background:#fff3dd;color:#946200}
.cb-status.ended{background:#eff0f2;color:#727a85}
.cb-public{background:linear-gradient(180deg,#f8f7f3 0,#f4f6f5 100%);min-height:100vh}
.cb-board{max-width:1120px;margin:0 auto;padding:24px 20px 80px}.cb-boardbar{display:flex;align-items:center;gap:12px;margin-bottom:20px}.cb-logo{width:28px}.cb-boardbar .spacer{flex:1}.cb-kicker{font-size:12px;font-weight:750;color:var(--green);letter-spacing:.04em}
.cb-hero{background:#fff;border:1px solid var(--line);border-radius:26px;padding:28px;margin-bottom:22px;box-shadow:var(--shadow)}.cb-hero h1{font-size:32px;margin:5px 0 9px;letter-spacing:-.045em}.cb-hero p{color:var(--muted);margin:0}.cb-question{font-size:20px;font-weight:760;line-height:1.45;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.cb-join{max-width:430px;margin:10vh auto;background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;box-shadow:var(--shadow)}.cb-join h1{margin:5px 0 8px;font-size:28px;letter-spacing:-.04em}.cb-join p{color:var(--muted);line-height:1.6}.cb-join input{width:100%;padding:14px;border:1px solid #d7dce4;border-radius:13px;margin:10px 0}.cb-join .cb-btn{width:100%;padding:13px}
.cb-compose{display:flex;gap:10px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;margin-bottom:18px;position:sticky;top:12px;z-index:5;box-shadow:0 5px 18px rgba(23,34,71,.06)}.cb-compose textarea{flex:1;border:0;outline:0;resize:none;min-height:46px;padding:8px;background:transparent}.cb-compose .cb-btn{align-self:end}
.cb-wall{columns:3 270px;column-gap:14px}.cb-post{break-inside:avoid;background:#fff;border:1px solid var(--line);border-radius:18px;padding:17px;margin:0 0 14px;box-shadow:0 2px 9px rgba(23,34,71,.035)}.cb-post .author{font-size:12px;font-weight:750;color:var(--green);margin-bottom:9px}.cb-post .body{white-space:pre-wrap;line-height:1.62;font-size:15px}.cb-post.pending{border-style:dashed;background:#fffdf7}.cb-post.hidden{opacity:.55}.cb-post .state{font-size:11px;color:var(--muted);margin-top:10px}.cb-empty{text-align:center;color:var(--muted);padding:48px 20px}
.cb-teacherbar{background:#172247;color:#fff;border-radius:18px;padding:12px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:18px;position:sticky;top:10px;z-index:7;box-shadow:0 10px 30px rgba(23,34,71,.18)}.cb-teacherbar .title{font-weight:800;margin-right:auto}.cb-teacherbar .cb-btn{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.18);color:#fff}.cb-teacherbar .cb-btn.hot{background:#fff;color:#172247}
.cb-qrbox{display:grid;grid-template-columns:240px 1fr;gap:24px;align-items:center}.cb-qrbox svg{width:220px;height:220px;max-width:100%}.cb-bigcode{font:850 36px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;margin:12px 0}.cb-url{font-size:14px;color:var(--muted);word-break:break-all}.cb-notice{padding:13px 15px;background:#fff7e8;border:1px solid #f0dfbd;border-radius:12px;font-size:13px;margin-bottom:14px}
.cb-toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#172247;color:#fff;padding:10px 16px;border-radius:999px;font-size:13px;z-index:50}
dialog.cb-dialog{border:0;border-radius:22px;padding:0;width:min(560px,calc(100vw - 28px));box-shadow:0 25px 80px rgba(0,0,0,.25)}dialog.cb-dialog::backdrop{background:rgba(10,17,32,.42)}.cb-dialog .cb-body{padding:24px}
@media(max-width:760px){.cb-shell{padding:24px 15px 60px}.cb-head{align-items:flex-start;flex-direction:column}.cb-grid{grid-template-columns:1fr}.cb-form{grid-template-columns:1fr}.cb-field.full{grid-column:auto}.cb-board{padding:16px 12px 70px}.cb-hero{padding:22px;border-radius:20px}.cb-hero h1{font-size:26px}.cb-wall{columns:1}.cb-compose{top:8px}.cb-qrbox{grid-template-columns:1fr;text-align:center}.cb-qrbox svg{margin:auto}.cb-teacherbar .title{width:100%}}


/* ── 클래스보드 2단계: 레이아웃 · 이미지 · 댓글 · 반응 ───────────── */
.cb-fab{position:fixed;right:max(20px,calc((100vw - 1120px)/2 + 20px));bottom:calc(22px + env(safe-area-inset-bottom));width:58px;height:58px;border:0;border-radius:50%;background:var(--navy);color:#fff;font-size:29px;line-height:1;box-shadow:0 14px 32px rgba(23,34,71,.28);z-index:16}
.cb-sheet-backdrop{position:fixed;inset:0;background:rgba(10,17,32,.42);backdrop-filter:blur(5px);display:flex;align-items:flex-end;justify-content:center;z-index:30;padding:18px}
.cb-sheet{width:min(620px,100%);max-height:min(88vh,760px);overflow:auto;background:#fff;border-radius:24px;padding:22px;box-shadow:0 24px 80px rgba(0,0,0,.22)}
.cb-sheet-handle{display:none;width:42px;height:4px;border-radius:4px;background:#d8dce1;margin:0 auto 14px}
.cb-sheet-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:16px}.cb-sheet-head h2{font-size:22px;margin:5px 0 0;letter-spacing:-.03em}.cb-sheet-x{border:0;background:transparent;font-size:28px;line-height:1;padding:4px 8px}
.cb-mobile-form label{display:block;margin:13px 0}.cb-mobile-form label>span{display:flex;justify-content:space-between;gap:10px;font-size:12px;font-weight:750;color:var(--muted);margin-bottom:7px}.cb-mobile-form small{font-weight:500;color:#949ba5}
.cb-mobile-form input,.cb-mobile-form textarea,.cb-mobile-form select,.cb-comment-form input{width:100%;border:1px solid #d7dce4;border-radius:13px;padding:13px 14px;outline:none;background:#fff}.cb-mobile-form textarea{min-height:128px;resize:vertical}.cb-mobile-form input:focus,.cb-mobile-form textarea:focus,.cb-mobile-form select:focus,.cb-comment-form input:focus{border-color:#8aa0b9;box-shadow:0 0 0 3px rgba(23,34,71,.06)}
.cb-mobile-submit{width:100%;min-height:48px;margin-top:10px}.cb-upload-state{min-height:20px;color:var(--green);font-size:12px;font-weight:700}
.cb-image-preview{margin-top:8px;border-radius:14px;overflow:hidden;background:var(--soft)}.cb-image-preview img{display:block;width:100%;max-height:260px;object-fit:contain}.cb-image-preview span{display:block;padding:8px 10px;font-size:11px;color:var(--muted)}
.cb-post{overflow:hidden}.cb-post-content{padding:0}.cb-post-image{display:block;width:calc(100% + 34px);max-width:none;margin:-17px -17px 15px;aspect-ratio:4/3;object-fit:cover;background:#eef0f2}.cb-post h3{margin:5px 0 8px;font-size:18px;letter-spacing:-.025em}
.cb-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:start}.cb-gallery .cb-post{margin:0;padding:0}.cb-gallery .cb-post-image{width:100%;margin:0;aspect-ratio:1/1}.cb-gallery .cb-post-content{padding:15px 16px 17px}
.cb-columns{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;align-items:start}.cb-column{background:#eef1ef;border:1px solid #e1e5e1;border-radius:20px;padding:10px;min-width:0}.cb-column>summary{display:flex;align-items:center;justify-content:space-between;padding:8px 8px 12px;cursor:pointer;list-style:none}.cb-column>summary::-webkit-details-marker{display:none}.cb-column>summary b{font-size:14px}.cb-column>summary span{min-width:25px;height:25px;display:grid;place-items:center;border-radius:999px;background:#fff;color:var(--muted);font-size:11px}.cb-column-posts .cb-post{margin-bottom:10px}.cb-column-empty{padding:30px 10px;text-align:center;color:var(--muted);font-size:12px}
.cb-reactions{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}.cb-reactions button{min-width:44px;min-height:38px;border:1px solid var(--line);border-radius:999px;background:#fff;padding:5px 9px;display:inline-flex;align-items:center;justify-content:center;gap:5px}.cb-reactions button.active{border-color:#9fcfb9;background:#edf8f3}.cb-reactions button b{font-size:11px;color:var(--muted)}
.cb-reaction-summary{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.cb-reaction-summary span{background:#f3f5f3;border-radius:999px;padding:5px 8px;font-size:11px}
.cb-comments{margin-top:12px;padding-top:10px;border-top:1px solid #edf0ec}.cb-comment{display:grid;grid-template-columns:auto 1fr;gap:8px;margin:7px 0;font-size:12px;line-height:1.45}.cb-comment b{color:var(--green)}.cb-comment-open{border:0;background:transparent;color:var(--muted);font-size:12px;padding:8px 0 0}
.cb-comment-list{max-height:52vh;overflow:auto;margin:0 -2px 12px}.cb-comment-list>div{padding:12px 2px;border-bottom:1px solid #edf0ec}.cb-comment-list b{font-size:12px;color:var(--green)}.cb-comment-list p{margin:5px 0 0;line-height:1.55}.cb-comment-form{display:grid;grid-template-columns:1fr auto;gap:8px;position:sticky;bottom:0;background:#fff;padding-top:10px}.cb-comment-form .cb-btn{min-width:72px}
.cb-teacher-tools{display:flex;gap:8px;flex-wrap:wrap}.cb-teacher-comments{margin-top:12px;border-top:1px solid #edf0ec;padding-top:8px}.cb-teacher-comments>div{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:start;padding:6px 0;font-size:12px}.cb-teacher-comments b{color:var(--green)}.cb-teacher-comments button{border:0;background:transparent;color:#8d5b61;padding:0}.cb-teacher-comments em{font-style:normal;color:var(--muted)}.cb-teacher-comments .hidden{opacity:.5}
.cb-present-dialog{width:min(1000px,calc(100vw - 28px))!important}.cb-present-card{text-align:center;padding:28px 12px}.cb-present-card h2{font-size:32px;margin:12px 0}.cb-present-image{display:block;max-width:100%;max-height:52vh;object-fit:contain;margin:22px auto;border-radius:18px}.cb-present-text{font-size:26px;line-height:1.6;white-space:pre-wrap;max-width:820px;margin:22px auto}.cb-present-nav{justify-content:center;align-items:center}

@media(max-width:760px){
  body{padding-bottom:env(safe-area-inset-bottom)}
  .cb-board{padding:14px 12px calc(94px + env(safe-area-inset-bottom))}
  .cb-boardbar{margin-bottom:13px}.cb-boardbar strong{font-size:14px}.cb-boardbar .cb-code{font-size:15px}
  .cb-hero{padding:19px 18px;margin-bottom:14px;border-radius:19px}.cb-hero h1{font-size:24px}.cb-question{font-size:17px;margin-top:16px;padding-top:15px}
  .cb-fab{right:16px;bottom:calc(16px + env(safe-area-inset-bottom));width:60px;height:60px}
  .cb-sheet-backdrop{padding:0;align-items:flex-end}.cb-sheet{width:100%;max-height:91vh;border-radius:24px 24px 0 0;padding:16px 16px calc(18px + env(safe-area-inset-bottom))}.cb-sheet-handle{display:block}
  .cb-mobile-form textarea{min-height:110px}.cb-mobile-submit{min-height:52px}
  .cb-wall{columns:1}.cb-columns{display:block}.cb-column{margin-bottom:12px;border-radius:17px;padding:9px}.cb-column>summary{position:sticky;top:0;background:#eef1ef;z-index:2;border-radius:12px;padding:8px}
  .cb-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.cb-gallery .cb-post-content{padding:12px}.cb-gallery .cb-post .body{font-size:13px}.cb-gallery .cb-post h3{font-size:15px}
  .cb-post{border-radius:16px;padding:15px}.cb-post-image{width:calc(100% + 30px);margin:-15px -15px 13px}.cb-post .body{font-size:15px}.cb-reactions{gap:5px}.cb-reactions button{min-width:46px;min-height:42px;padding:5px 8px}
  .cb-comment-open{min-height:42px;text-align:left}.cb-comment-form{grid-template-columns:1fr 72px}.cb-comment-form input{min-height:46px}.cb-comment-form .cb-btn{min-height:46px;padding:8px}
  .cb-teacherbar{position:sticky;top:8px;padding:10px;border-radius:16px}.cb-teacherbar .title{width:100%;margin:0 0 2px;font-size:13px}.cb-teacher-tools{width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.cb-teacherbar .cb-btn{padding:9px 4px;font-size:12px;min-height:42px}
  .cb-teacher-comments>div{grid-template-columns:auto 1fr}.cb-teacher-comments button,.cb-teacher-comments em{grid-column:2}
  .cb-qrbox{grid-template-columns:1fr;text-align:center}.cb-qrbox svg{margin:auto;width:min(70vw,280px);height:auto}.cb-bigcode{font-size:32px}
  dialog.cb-dialog{width:calc(100vw - 18px);max-height:92vh;overflow:auto}.cb-present-dialog{width:calc(100vw - 10px)!important}.cb-present-card{padding:14px 2px}.cb-present-card h2{font-size:25px}.cb-present-text{font-size:21px}.cb-present-image{max-height:46vh}
}
@media(max-width:420px){
  .cb-gallery{grid-template-columns:1fr}.cb-teacher-tools{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cb-join{margin:5vh 12px;padding:24px;border-radius:22px}
}


/* ── 강사 학습자료 공유 ───────────────────────────────────── */
.cb-materials{background:#fff;border:1px solid var(--line);border-radius:20px;padding:17px;margin:0 0 18px;box-shadow:0 2px 9px rgba(23,34,71,.035)}
.cb-materials-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:12px}.cb-materials-head h2{font-size:18px;margin:3px 0 0;letter-spacing:-.025em}.cb-materials-head>span{min-width:27px;height:27px;display:grid;place-items:center;border-radius:999px;background:var(--mint);color:var(--green);font-size:11px;font-weight:800}
.cb-material-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px}.cb-material-card{min-width:0;border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fbfcfb}.cb-material-image{display:block;background:#eef1ef}.cb-material-image img{display:block;width:100%;height:170px;object-fit:cover}.cb-material-body{padding:13px 14px}.cb-material-body h3{font-size:15px;margin:0 0 6px}.cb-material-body p{font-size:13px;line-height:1.55;color:#4e5865;white-space:pre-wrap;margin:0 0 10px}.cb-material-actions{display:flex;flex-wrap:wrap;gap:7px;align-items:center}.cb-material-link,.cb-material-hide{display:inline-flex;min-height:38px;align-items:center;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--navy);text-decoration:none;padding:7px 10px;font-size:12px;font-weight:700}.cb-material-hide{color:#8d5b61}.teacher-materials{border-color:#dce4df}
@media(max-width:760px){
  .cb-materials{padding:14px;margin-bottom:14px;border-radius:18px}.cb-material-list{grid-template-columns:1fr}.cb-material-card{display:grid;grid-template-columns:88px 1fr;min-height:92px}.cb-material-card:not(:has(.cb-material-image)){display:block}.cb-material-image img{width:88px;height:100%;min-height:92px;object-fit:cover}.cb-material-body{padding:12px}.cb-material-actions{gap:6px}.cb-material-link,.cb-material-hide{min-height:42px;padding:8px 10px}
}


/* ── 오디오 · 비디오 게시물 ─────────────────────────────── */
.cb-post-media{width:calc(100% + 34px);margin:-17px -17px 15px;background:#111827}
.cb-post-media video{display:block;width:100%;max-height:420px;background:#0b0f16;object-fit:contain}
.cb-post-media.audio{background:#f1f4f3;padding:14px}
.cb-post-media audio{display:block;width:100%;height:42px}
.cb-material-media{background:#f1f4f3;padding:12px}.cb-material-media audio{display:block;width:100%}.cb-material-media video{display:block;width:100%;max-height:260px;object-fit:contain;background:#0b0f16;border-radius:10px}
.cb-present-video{display:block;width:min(100%,900px);max-height:58vh;object-fit:contain;background:#0b0f16;border-radius:18px;margin:22px auto}.cb-present-audio{display:block;width:min(100%,680px);margin:28px auto}
.cb-image-preview audio,.cb-image-preview video{display:block;width:100%;max-height:260px;background:#111827}.cb-image-preview audio{height:48px;background:#f1f4f3}
@media(max-width:760px){
  .cb-post-media{width:calc(100% + 30px);margin:-15px -15px 13px}.cb-post-media video{max-height:62vh}.cb-post-media.audio{padding:12px}
  .cb-material-media{grid-column:1/-1}.cb-material-media video{max-height:48vh}
  .cb-present-video{max-height:50vh}.cb-present-audio{width:100%}
}


/* ── 클래스보드 완성도 패스: 템플릿 · 고정 · 정렬 · 결과 ───────── */
body[data-theme="warm"]{--page:#faf7f1;--accent:#9b6a3f;--accent-soft:#f6ede2}
body[data-theme="mint"]{--page:#f3faf7;--accent:#0d7a54;--accent-soft:#e5f5ee}
body[data-theme="lavender"]{--page:#f7f5fb;--accent:#6c5aa8;--accent-soft:#eeeafa}
body[data-theme="minimal"],body:not([data-theme]){--page:#f7f7f5;--accent:#0d7a54;--accent-soft:#eaf7f2}
.cb-public{background:linear-gradient(180deg,var(--page,#f7f7f5) 0,#f3f5f4 100%)}
.cb-kicker{color:var(--accent,var(--green))}
.cb-admin-hero{padding:16px 4px 10px}.cb-admin-hero h1{font-size:40px;line-height:1.18;max-width:680px}.cb-admin-hero p{font-size:15px}
.cb-new-board{min-height:48px;padding-inline:20px;box-shadow:0 10px 24px rgba(23,34,71,.14)}
.cb-admin-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:12px 0 28px}.cb-admin-stats>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px}.cb-admin-stats span{display:block;font-size:11px;color:var(--muted)}.cb-admin-stats b{display:block;margin-top:4px;font-size:28px;letter-spacing:-.04em}
.cb-panel-head p{margin:4px 0 0;color:var(--muted);font-size:12px}.cb-card{transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.cb-card:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(23,34,71,.08);border-color:#d8dfe8}.cb-card-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.cb-layout-chip{font-size:11px;color:var(--muted);background:#f4f5f6;border-radius:999px;padding:5px 8px}.cb-code-block{margin-top:18px;padding:12px 13px;background:#f6f8f7;border-radius:12px}.cb-code-block span{display:block;font-size:10px;color:var(--muted);margin-bottom:4px}.cb-code-block strong{font:850 21px/1.1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;color:var(--navy)}
.cb-new-dialog{width:min(860px,calc(100vw - 28px))!important}.cb-dialog-title{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:18px}.cb-dialog-title h1{font-size:26px;margin:6px 0 3px}.cb-dialog-title p{margin:0;color:var(--muted);font-size:13px}
.cb-template-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin-bottom:22px}.cb-template-card{position:relative;min-height:126px;text-align:left;background:#fbfcfb;border:1px solid var(--line);border-radius:15px;padding:13px;display:flex;flex-direction:column;align-items:flex-start;gap:5px;color:var(--ink)}.cb-template-card>span{font-size:22px}.cb-template-card>b{font-size:13px}.cb-template-card>small{font-size:11px;line-height:1.4;color:var(--muted)}.cb-template-card>em{position:absolute;right:9px;top:9px;font-style:normal;font-size:9px;background:#eef1f0;color:#66706d;padding:4px 6px;border-radius:999px}.cb-template-card.selected{border-color:#76b69b;background:#f0f9f5;box-shadow:0 0 0 2px rgba(13,122,84,.08)}.cb-template-card:hover{border-color:#b8c7c0}.cb-field small{font-size:11px;color:#9299a2}.cb-create-foot{padding-top:6px}.cb-create-foot .cb-btn{width:100%;min-height:48px}
.cb-material-card{position:relative;transition:border-color .16s ease,box-shadow .16s ease}.cb-material-card.pinned{border-color:#b7d8ca;background:#fcfffd;box-shadow:0 7px 20px rgba(13,122,84,.08)}.cb-pin-badge{position:absolute;z-index:2;left:10px;top:10px;background:#173f32;color:#fff;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:800;box-shadow:0 4px 10px rgba(13,61,45,.18)}.cb-material-pin{display:inline-flex;min-height:38px;align-items:center;border:1px solid #b9d5c8;border-radius:10px;background:#f1faf6;color:#0d6c4b;padding:7px 10px;font-size:12px;font-weight:700}
.cb-drag-handle{display:none;position:absolute;right:10px;top:10px;z-index:4;width:34px;height:34px;border-radius:10px;background:rgba(23,34,71,.9);color:#fff;align-items:center;justify-content:center;font-weight:900;letter-spacing:-2px;cursor:grab;box-shadow:0 5px 14px rgba(23,34,71,.2)}.cb-sort-mode .cb-post{position:relative;border-color:#b8c4d6}.cb-sort-mode .cb-drag-handle{display:flex}.cb-sort-mode .cb-post[draggable="true"]{cursor:grab}.cb-sort-mode .cb-post.dragging{opacity:.48;transform:scale(.985)}.cb-sort-mobile{display:none;gap:5px}.cb-sort-mode .cb-sort-mobile{display:inline-flex}
.cb-result-dialog{width:min(820px,calc(100vw - 24px))!important}.cb-result-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.cb-result-head h2{font-size:28px;margin:6px 0 8px;letter-spacing:-.035em}.cb-result-head p{max-width:640px;color:#586270;line-height:1.65;margin:0}.cb-result-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0}.cb-result-stats>div{background:#f5f7f6;border-radius:14px;padding:15px;text-align:center}.cb-result-stats span{display:block;font-size:11px;color:var(--muted)}.cb-result-stats b{font-size:29px;letter-spacing:-.04em}.cb-result-stats small{font-size:11px;color:var(--muted);margin-left:2px}.cb-result-section{border-top:1px solid var(--line);padding-top:18px;margin-top:18px}.cb-result-section h3{font-size:14px;margin:0 0 11px}.cb-keywords{display:flex;gap:7px;flex-wrap:wrap}.cb-keywords span{background:#edf7f2;color:#245b47;border-radius:999px;padding:7px 10px;font-size:12px}.cb-keywords b{font-size:10px;opacity:.72}.cb-section-breakdown{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px}.cb-section-breakdown>div{display:flex;justify-content:space-between;gap:10px;padding:10px 12px;background:#f6f7f6;border-radius:10px;font-size:12px}.cb-section-breakdown span{color:var(--muted)}.cb-highlights{display:grid;gap:8px}.cb-highlights article{display:grid;grid-template-columns:34px 1fr auto;gap:10px;align-items:start;padding:12px;border:1px solid var(--line);border-radius:12px}.cb-highlights article>span{width:28px;height:28px;display:grid;place-items:center;background:#eef3f1;border-radius:9px;color:var(--green);font-size:10px;font-weight:850}.cb-highlights b{font-size:13px}.cb-highlights p{margin:4px 0 0;font-size:12px;line-height:1.5;color:#5f6874}.cb-highlights em{font-style:normal;font-size:10px;color:var(--muted)}.cb-result-actions{display:flex;justify-content:flex-end;margin-top:20px}
.cb-teacherbar{border:1px solid rgba(255,255,255,.09)}.cb-teacher-tools .cb-btn{transition:background .14s ease,transform .14s ease}.cb-teacher-tools .cb-btn:hover{background:rgba(255,255,255,.2)}.cb-teacher-tools .cb-btn:active{transform:translateY(1px)}
.cb-hero{overflow:hidden;position:relative}.cb-hero:before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-90px;top:-100px;background:var(--accent-soft,#eaf7f2);opacity:.75}.cb-hero>*{position:relative;z-index:1}
.cb-post{transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.cb-post:hover{box-shadow:0 8px 22px rgba(23,34,71,.07)}
.cb-fab{transition:transform .15s ease,box-shadow .15s ease}.cb-fab:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(23,34,71,.34)}
@media(max-width:900px){.cb-template-strip{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){
  .cb-admin-hero h1{font-size:31px}.cb-admin-stats{grid-template-columns:repeat(2,1fr);margin-top:4px}.cb-admin-stats>div{padding:13px 15px}.cb-admin-stats b{font-size:24px}
  .cb-new-dialog .cb-body{padding:18px 15px}.cb-dialog-title h1{font-size:23px}.cb-template-strip{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;margin-inline:-15px;padding:0 15px 8px;gap:9px}.cb-template-card{min-width:154px;max-width:154px;min-height:120px;scroll-snap-align:start}
  .cb-result-stats{grid-template-columns:repeat(2,1fr)}.cb-result-head h2{font-size:24px}.cb-highlights article{grid-template-columns:30px 1fr}.cb-highlights em{grid-column:2}.cb-result-dialog .cb-body{padding:20px 16px}
  .cb-sort-mode .cb-drag-handle{display:none}.cb-sort-mode .cb-sort-mobile{display:inline-flex}.cb-sort-mobile .cb-btn{min-width:42px;min-height:42px}
  .cb-material-card.pinned{border-width:1px}.cb-pin-badge{left:8px;top:8px}
  .cb-teacher-tools{grid-template-columns:repeat(4,minmax(0,1fr))}.cb-teacherbar .cb-btn{font-size:11px;min-height:44px}
}
@media(max-width:420px){.cb-template-card{min-width:145px;max-width:145px}.cb-teacher-tools{grid-template-columns:repeat(3,minmax(0,1fr))}.cb-result-head{display:block}.cb-result-head .cb-btn{margin-top:12px}}