/* ATM 스쿨 강의실 — store.css 토큰 위에 얹는 화면 전용 스타일.
   강의 본문 HTML 은 tools/build_school.py 가 build_book.convert 로 만든다
   (.prompt 복사 블록 · .callout · ul.todo-list · .tbl-wrap) — 여기서 atmbook 톤으로 다시 칠한다. */

.sc-hero{background:var(--surface);border-bottom:1px solid var(--hairline);padding:64px 0 56px}
.sc-hero .kicker{display:inline-block;background:var(--brand-yellow);color:var(--primary);font-size:13px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-full);letter-spacing:.2px}
.sc-hero h1,.sc-hero .sc-h1{font-size:clamp(34px,5.4vw,56px);font-weight:500;line-height:1.12;letter-spacing:-1.4px;margin:18px 0 14px;word-break:keep-all}
.sc-hero .lede{font-size:18px;line-height:1.65;color:var(--slate);max-width:44rem;word-break:keep-all}
.sc-hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.sc-hero .crumb{font-size:14px;color:var(--steel)}
.sc-hero .crumb a{color:var(--slate);text-decoration:underline;text-underline-offset:3px}
@media (max-width:600px){.sc-hero{padding:44px 0 40px}.sc-hero .lede{font-size:16px}}

.sc-section{padding:56px 0 8px}
.sc-section h2{font-size:clamp(24px,3vw,32px);font-weight:500;letter-spacing:-.5px;margin-bottom:8px}
.sc-section .sub{color:var(--slate);font-size:15px;margin-bottom:24px;word-break:keep-all}

/* 진도 막대 */
.sc-prog{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--steel);font-variant-numeric:tabular-nums}
.sc-prog .bar{flex:1;height:6px;background:var(--hairline-soft);border-radius:var(--r-full);overflow:hidden;min-width:80px}
.sc-prog .bar i{display:block;height:100%;background:var(--primary);border-radius:var(--r-full)}

/* 트랙 카드 */
.sc-tracks{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.sc-track{display:flex;flex-direction:column;gap:12px;padding:26px 24px;background:var(--canvas);
  border:1px solid var(--hairline);border-radius:var(--r-xxl);box-shadow:var(--e1);transition:box-shadow .15s ease,border-color .15s ease}
.sc-track:hover{box-shadow:var(--e3);border-color:var(--hairline-strong)}
.sc-track .tno{font-size:12px;font-weight:600;color:var(--steel);letter-spacing:.6px}
.sc-track h3{font-size:19px;font-weight:600;letter-spacing:-.3px;line-height:1.35;word-break:keep-all}
.sc-track p{font-size:14px;color:var(--slate);line-height:1.6;flex:1;word-break:keep-all}
.sc-track .chips{display:flex;gap:6px;flex-wrap:wrap}
@media (max-width:600px){.sc-tracks{grid-template-columns:1fr}}

/* 강의 목록 */
.sc-list{list-style:none;border:1px solid var(--hairline);border-radius:var(--r-xxl);overflow:hidden;background:var(--canvas)}
.sc-list li{border-bottom:1px solid var(--hairline-soft)}
.sc-list li:last-child{border-bottom:none}
.sc-list a,.sc-list .row{display:flex;align-items:center;gap:14px;padding:16px 20px}
.sc-list a:hover{background:var(--surface-soft)}
.sc-list .no{flex:none;width:34px;height:34px;border-radius:50%;background:var(--surface);display:flex;align-items:center;
  justify-content:center;font-size:13px;font-weight:600;color:var(--slate);font-variant-numeric:tabular-nums}
.sc-list .done .no{background:var(--primary);color:var(--on-primary)}
.sc-list .tt{flex:1;min-width:0}
.sc-list .tt b{display:block;font-size:15.5px;font-weight:500;line-height:1.45;word-break:keep-all}
.sc-list .tt small{display:block;font-size:12.5px;color:var(--steel);margin-top:3px}
.sc-list .chips{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;flex:none;max-width:45%}
.sc-list .muted{color:var(--stone)}
@media (max-width:600px){.sc-list a,.sc-list .row{padding:14px 14px;gap:10px;flex-wrap:wrap}.sc-list .chips{max-width:100%;justify-content:flex-start;padding-left:44px;width:100%}}

.chip-member{background:var(--tint-teal);color:var(--ink-teal)}
.chip-early{background:var(--tint-rose);color:var(--ink-rose)}
.chip-done{background:var(--primary);color:var(--on-primary)}

/* 멤버 패널 · 키 입력 */
.sc-panel{border:1px solid var(--hairline);border-radius:var(--r-xxl);padding:24px;background:var(--canvas);box-shadow:var(--e1)}
.sc-panel h3{font-size:18px;font-weight:600;margin-bottom:6px}
.sc-panel p{font-size:14.5px;color:var(--slate);line-height:1.65;word-break:keep-all}
.sc-panel .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}
.sc-panel .kv{display:grid;grid-template-columns:max-content 1fr;gap:6px 14px;font-size:14.5px;margin-top:12px}
.sc-panel .kv dt{color:var(--steel)}
.sc-panel .kv dd{font-weight:500}
.sc-panel .code{font-family:"D2Coding",Consolas,Menlo,monospace;font-size:18px;font-weight:600;letter-spacing:1px;
  background:var(--yellow-light);color:var(--yellow-dark);padding:4px 12px;border-radius:var(--r-md)}
.sc-panel.ended{border-color:#F3C7C7;background:#FFF7F7}
.sc-key{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.sc-key input{flex:1;min-width:220px;font-family:inherit;font-size:15px;padding:12px 16px;border:1px solid var(--hairline-strong);
  border-radius:var(--r-full);background:var(--canvas);color:var(--ink)}
.sc-key input:focus{outline:2px solid var(--brand-blue);outline-offset:1px}
.sc-msg{font-size:14px;margin-top:10px;min-height:1.2em;color:var(--slate)}
.sc-msg.ok{color:#1E5B2C}
.sc-msg.err{color:#A12C2C}

/* 가격 카드 */
.sc-launch{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  background:var(--primary);color:var(--on-dark);border-radius:var(--r-xxl);padding:22px 26px;margin-bottom:20px}
.sc-launch b{font-size:18px;font-weight:600}
.sc-launch span{color:var(--on-dark-muted);font-size:14px}
.sc-plans{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.sc-plan{border:1px solid var(--hairline);border-radius:var(--r-xxl);padding:28px 26px;background:var(--canvas);display:flex;flex-direction:column;gap:14px}
.sc-plan.pro{border-color:var(--primary);box-shadow:var(--e2)}
.sc-plan h3{font-size:22px;font-weight:600}
.sc-plan .pitch{font-size:14.5px;color:var(--slate)}
.sc-plan .prices{display:flex;gap:18px;flex-wrap:wrap;align-items:baseline}
.sc-plan .px{font-size:28px;font-weight:600;letter-spacing:-.6px}
.sc-plan .per{font-size:14px;color:var(--steel)}
.sc-plan .note{font-size:12.5px;color:var(--yellow-dark);background:var(--yellow-light);padding:2px 8px;border-radius:var(--r-full)}
.sc-plan ul{list-style:none;display:flex;flex-direction:column;gap:8px;flex:1}
.sc-plan li{font-size:14.5px;padding-left:24px;position:relative;line-height:1.5;word-break:keep-all}
.sc-plan li::before{content:"✓";position:absolute;left:2px;top:0;font-weight:700;color:var(--ink-teal)}
.sc-plan .buy{display:flex;gap:8px;flex-wrap:wrap}
.sc-plan .pending{font-size:13px;color:var(--stone)}
@media (max-width:760px){.sc-plans{grid-template-columns:1fr}}

/* 고지(자동 갱신·환불·판매자 정보) */
.sc-legal{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.sc-legal section{border:1px solid var(--hairline);border-radius:var(--r-xl);padding:20px 22px;background:var(--surface-soft)}
.sc-legal h4{font-size:15px;font-weight:600;margin-bottom:10px}
.sc-legal ul{padding-left:18px;display:flex;flex-direction:column;gap:6px}
.sc-legal li,.sc-legal p,.sc-legal dd,.sc-legal dt{font-size:13.5px;color:var(--slate);line-height:1.6;word-break:keep-all}
.sc-legal dl{display:grid;grid-template-columns:max-content 1fr;gap:4px 12px}
.sc-legal dt{color:var(--steel)}
.sc-legal a{text-decoration:underline;text-underline-offset:3px}
@media (max-width:760px){.sc-legal{grid-template-columns:1fr}}
.sc-manage{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin:28px 0 0;padding:16px 20px;border:1px solid var(--hairline);border-radius:var(--r-xl);font-size:14px;color:var(--slate)}

/* ── 강의 화면 ── */
.lec-bar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--hairline)}
.lec-bar .inner{max-width:1080px;margin:0 auto;padding:0 22px;height:58px;display:flex;align-items:center;gap:14px}
.lec-bar .back{font-size:14px;font-weight:500;color:var(--slate);white-space:nowrap}
.lec-bar .back:hover{color:var(--ink)}
.lec-bar .who{flex:1;text-align:center;font-size:14px;font-weight:500;color:var(--stone);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lec-bar .home{font-size:14px;font-weight:600;white-space:nowrap}
@media (max-width:600px){.lec-bar .who{display:none}.lec-bar .inner{justify-content:space-between}}
.sc-banner{font-size:14px;font-weight:500;text-align:center;padding:11px 16px;background:var(--yellow-light);color:var(--yellow-dark)}
.sc-banner.early{background:var(--tint-rose);color:var(--ink-rose)}
.sc-banner.err{background:#FFF0F0;color:#A12C2C}

.lec{max-width:46rem;margin:0 auto;padding:32px 22px 0}
.lec .head .chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.lec .head h1{font-size:clamp(26px,4vw,36px);font-weight:500;letter-spacing:-.8px;line-height:1.25;word-break:keep-all}
.lec .head .meta{font-size:14px;color:var(--steel);margin-top:10px}
.lec .video{margin:26px 0 8px;position:relative;aspect-ratio:16/9;border-radius:var(--r-xl);overflow:hidden;background:var(--primary);box-shadow:var(--e2)}
.lec .video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.lec .video.ph{display:flex;align-items:center;justify-content:center;text-align:center;color:var(--on-dark-muted);font-size:15px;padding:24px}
.lec .video.ph b{display:block;color:var(--on-dark);font-size:19px;font-weight:500;margin-bottom:6px}
.lec .block{margin-top:40px}
.lec .block > h2{font-size:22px;font-weight:600;letter-spacing:-.4px;padding-bottom:10px;margin-bottom:14px;border-bottom:2px solid var(--hairline-soft)}

/* 강의 본문(build_book.convert 출력) */
.lec-body{font-size:16.5px;line-height:1.85;color:var(--charcoal);word-break:keep-all}
.lec-body p{margin:.7em 0}
.lec-body h3{font-size:18.5px;font-weight:600;color:var(--ink);margin:2em 0 .5em;letter-spacing:-.3px}
.lec-body h3:first-child{margin-top:.4em}
.lec-body a{color:var(--brand-blue);text-decoration:underline;text-underline-offset:3px}
.lec-body strong{font-weight:600;color:var(--ink)}
.lec-body em{font-style:normal;background:linear-gradient(transparent 62%,var(--yellow-light) 62%)}
.lec-body code{font-family:"D2Coding",Consolas,Menlo,monospace;font-size:.88em;background:var(--surface);color:var(--ink);padding:1px 6px;border-radius:5px}
.lec-body ul.bullet{list-style:none;padding:0;margin:.7em 0}
.lec-body ul.bullet li{position:relative;padding-left:20px;margin:.4em 0}
.lec-body ul.bullet li::before{content:"";position:absolute;left:4px;top:.75em;width:6px;height:6px;border-radius:50%;background:var(--ink)}
.lec-body ol{padding-left:22px;margin:.7em 0}
.lec-body ol li{margin:.4em 0}
.lec-body hr{border:none;border-top:1px solid var(--hairline);margin:28px 0}
.lec-body .tbl-wrap{overflow-x:auto;margin:1em 0;border:1px solid var(--hairline);border-radius:var(--r-lg)}
.lec-body table{border-collapse:collapse;width:100%;font-size:14.5px;line-height:1.6}
.lec-body th,.lec-body td{padding:10px 12px;border-bottom:1px solid var(--hairline-soft);text-align:left;vertical-align:top}
.lec-body th{background:var(--surface);font-weight:600}
.lec-body tr:last-child td{border-bottom:none}
.lec-body .callout{margin:1em 0;padding:12px 16px;border-radius:var(--r-lg);border-left:4px solid var(--hairline-strong);background:var(--surface-soft)}
.lec-body .callout p{margin:.2em 0;font-size:15px;line-height:1.7}
.lec-body .callout.ok{border-left-color:#3E8E57;background:#F1F8F2}
.lec-body .callout.warn{border-left-color:#E0A93A;background:#FFF8E8}
.lec-body .callout.tip{border-left-color:var(--brand-blue);background:#F1F4FF}
.lec-body .callout.note{border-left-color:#8C7BD1;background:#F5F2FC}
.lec-body .prompt{margin:1em 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid #1E1A4A}
.lec-body .prompt-bar{display:flex;align-items:center;gap:10px;background:var(--primary);padding:7px 12px}
.lec-body .prompt-tag{font-size:12px;color:var(--on-dark-muted);font-weight:500}
.lec-body .copy-btn{margin-left:auto;background:var(--brand-yellow);color:var(--primary);border:none;border-radius:var(--r-full);
  font-family:inherit;font-size:12.5px;font-weight:600;padding:5px 12px;cursor:pointer}
.lec-body .prompt pre{margin:0;background:#0E0B33;color:#EDEBFF;padding:14px 16px;overflow-x:auto;font-size:13.5px;line-height:1.65}
.lec-body .prompt pre code{background:none;color:inherit;padding:0;font-size:inherit;white-space:pre-wrap;word-break:break-word}
.lec-body ul.todo-list{list-style:none;padding:0;margin:.8em 0;border:1px solid var(--hairline);border-radius:var(--r-lg);overflow:hidden;background:var(--canvas)}
.lec-body ul.todo-list li.todo{display:flex;gap:12px;align-items:flex-start;padding:12px 16px;border-bottom:1px solid var(--hairline-soft);cursor:pointer;user-select:none}
.lec-body ul.todo-list li.todo:last-child{border-bottom:none}
.lec-body ul.todo-list li.todo:hover{background:var(--surface-soft)}
.lec-body .cbox{flex:none;width:20px;height:20px;border-radius:6px;border:2px solid var(--hairline-strong);margin-top:4px;position:relative}
.lec-body .cbox.on{background:var(--primary);border-color:var(--primary)}
.lec-body .cbox.on::after{content:"✓";position:absolute;color:#fff;font-size:12px;font-weight:800;left:3px;top:-1px}
.lec-body li.todo.on > span:last-child{color:var(--steel);text-decoration:line-through}

.lec .lockbox{margin-top:36px;padding:32px 26px;text-align:center;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--r-feature)}
.lec .lockbox h3{font-size:21px;font-weight:500;margin-bottom:8px}
.lec .lockbox p{font-size:15px;color:var(--slate);margin-bottom:16px;word-break:keep-all}
.lec .lockbox .sc-key{max-width:30rem;margin:0 auto}
.lec .lockbox .ilink{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;text-decoration:underline;text-underline-offset:3px}

.packs{list-style:none;border:1px solid var(--hairline);border-radius:var(--r-xl);overflow:hidden}
.packs li{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--hairline-soft)}
.packs li:last-child{border-bottom:none}
.packs .ic{flex:none;width:30px;height:30px;border-radius:8px;background:var(--surface);display:flex;align-items:center;justify-content:center;font-size:15px}
.packs .nm{flex:1;min-width:0;font-size:14.5px;font-weight:500;word-break:keep-all}
.packs .nm small{display:block;font-size:12px;color:var(--steel);font-weight:400}
.packs button{font-family:inherit;font-size:13px;font-weight:600;padding:8px 14px;border-radius:var(--r-full);border:1px solid var(--hairline-strong);
  background:var(--canvas);color:var(--ink);cursor:pointer;white-space:nowrap}
.packs button.go{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}
.packs button.go.alt{background:transparent;color:var(--primary)}
.packs button.go+button.go{margin-left:6px}
.packs button[disabled]{opacity:.55;cursor:not-allowed}

.lec .donebar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:40px;padding:18px 20px;
  border-radius:var(--r-xl);background:var(--surface)}
.lec .donebar p{font-size:14.5px;color:var(--slate)}
.lec-nav{max-width:46rem;margin:0 auto;padding:36px 22px 72px;display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap}
.lec-nav a{flex:1;min-width:200px;border:1px solid var(--hairline);border-radius:var(--r-xl);padding:14px 18px;font-size:14px}
.lec-nav a:hover{background:var(--surface-soft)}
.lec-nav a small{display:block;font-size:12px;color:var(--steel);margin-bottom:4px}
.lec-nav a.next{text-align:right}
.lec-nav a.off{visibility:hidden}

.sc-foot{background:var(--surface);color:var(--slate);border-top:1px solid var(--hairline);padding:32px 0 40px;margin-top:24px}
.sc-foot .wrap{display:flex;flex-direction:column;gap:12px}
.sc-foot p,.sc-foot li{font-size:12.5px;color:var(--steel);line-height:1.65;word-break:keep-all}
.sc-foot a{text-decoration:underline;text-underline-offset:3px}
.sc-foot .seller{display:flex;flex-wrap:wrap;gap:2px 14px;font-size:12.5px;color:var(--steel)}
.sc-ytm{margin-top:20px}
/* ATM 스쿨러 전용 이용 방법(#plans) — 2026-10-18 베이직/프로 판매 중단 */
.sc-only{border:1px solid var(--hairline);border-radius:var(--r-xl);padding:24px 24px 20px;background:var(--canvas);margin-top:6px}
.sc-only h3{margin:0 0 12px;font-size:19px;font-weight:600;word-break:keep-all}
.sc-only ol{margin:0 0 16px;padding-left:20px;display:grid;gap:8px;font-size:15px;line-height:1.55;word-break:keep-all}
.sc-only ol b{font-weight:600}
.sc-only .row{display:flex;flex-wrap:wrap;gap:10px}
.sc-only .note{margin:14px 0 0;font-size:13px;color:var(--steel);word-break:keep-all}
.sc-legal a{color:inherit;text-decoration:underline}