/* 교사 페이지 — 로그인·내 수업 목록·설정·수업 편집기 (공용 스킨 assets/site.css 위에) */
[hidden] { display: none !important; }
.page { padding-top: 28px; }
.page.wide, body.wide .topbar .wrap { max-width: 1320px; }
.loading { padding: 40px 0; text-align: center; }

/* 로그인 */
.login { max-width: 560px; margin: 24px auto 0; text-align: center; padding: 32px 24px; }
.login h1 { font-size: clamp(28px, 5vw, 36px); color: var(--accent-dd); }
.login p { color: var(--muted); margin-top: 8px; }
.gbtn { margin-top: 22px; background: #fff; color: #1f1f1f; border: 1px solid #c4c7c5; font-weight: 500; gap: 10px; }
.gbtn:hover { background: #f6f8f8; }
.gbtn svg { width: 18px; height: 18px; flex: none; }
.login .alt-acc, .modal .alt-acc { font-size: 13.5px; margin-top: 10px; color: var(--muted); }
.login ul { text-align: left; margin: 18px auto 0; max-width: 420px; padding-left: 1.2em; font-size: 14px; color: var(--muted); }
.login li { margin-top: 4px; }
.login li::marker { color: var(--accent); }
.login .peek { margin-top: 20px; }

.profile { display: flex; align-items: center; gap: 8px; min-width: 0; }
.profile img { width: 30px; height: 30px; border-radius: 50%; flex: none; background: var(--bg-2); }
.profile .who { font-size: 14px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 220px; }

/* 홈: 인사·내 수업 */
.home-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.hello { min-width: 0; flex: 1 1 320px; }
.hello h1 { font-size: clamp(26px, 4.6vw, 34px); color: var(--accent-dd); }
.hello p { color: var(--muted); margin-top: 4px; }
.home-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.sec-title { font-size: 24px; color: var(--accent-dd); margin-top: 30px; margin-bottom: 12px; }
.lesson-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.lcard { display: flex; flex-direction: column; gap: 6px; }
.lcard h3 { font-size: 21px; line-height: 1.3; color: var(--text); }
.lcard .meta { font-size: 13.5px; color: var(--muted); }
.lcard .codeline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.code-chip { font-family: 'Roboto Mono', monospace; font-size: 14px; letter-spacing: 2px; background: var(--accent-l); color: var(--accent-dd); padding: 1px 8px; border-radius: 6px; }
.lcard .acts { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; padding-top: 8px; }
.empty { text-align: center; padding: 30px 20px; color: var(--muted); }
.empty .btn { margin-top: 12px; }

/* 설정(시트 연결) */
.grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 14px; }
.side { display: grid; gap: 14px; align-content: start; }
.card .lead { color: var(--muted); font-size: 14px; margin-top: 4px; }
.row { display: flex; gap: 8px; margin-top: 12px; }
.row .input { flex: 1; }
.steps-ol { margin-top: 12px; padding-left: 1.3em; font-size: 14.5px; }
.steps-ol li { margin-top: 6px; }
.steps-ol li::marker { color: var(--accent); font-weight: 700; }
.sa { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 6px; padding: 8px 10px; background: var(--accent-l); border-radius: 10px; }
.sa code { font-family: 'Roboto Mono', monospace; font-size: 13px; word-break: break-all; color: var(--accent-dd); flex: 1 1 200px; min-width: 0; }
.status { margin-top: 12px; }
.status:empty { display: none; }
.linked { margin-top: 10px; font-size: 14px; word-break: break-all; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.soon { display: inline-block; margin-top: 10px; font-size: 13px; font-weight: 700; color: var(--muted); }

/* 편집기 */
.demo-band { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.demo-acts { display: flex; gap: 6px; flex-wrap: wrap; }
.ed-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ed-title { flex: 1 1 260px; font-size: 18px; font-weight: 700; min-height: 46px; }
.dirty { font-size: 13px; font-weight: 700; color: var(--warn); background: var(--warn-bg); border: 1px solid #fed7aa; border-radius: 999px; padding: 2px 10px; white-space: nowrap; }
.ed-status { margin-top: 10px; }
.ed-grid { display: grid; gap: 14px; margin-top: 14px; align-items: start;
  grid-template-columns: 290px minmax(0, 1fr) 280px; grid-template-areas: "book flow pub"; }
.ed-book { grid-area: book; }
.ed-flow { grid-area: flow; min-width: 0; }
.ed-pub { grid-area: pub; position: sticky; top: 66px; }
.ed-grid h2 { font-size: 20px; color: var(--accent-dd); display: flex; align-items: center; gap: 8px; }
.stepno { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 14px; flex: none; }
.fld { display: block; margin-top: 12px; }
.lbl { display: block; font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 4px; }
.hint { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.pick { font: inherit; font-size: 13.5px; font-weight: 500; padding: 4px 11px; border-radius: 999px; border: 1px solid var(--line-2); background: #fff; color: var(--text); cursor: pointer; min-height: 32px; }
.pick[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.pick:disabled { opacity: .45; cursor: not-allowed; }
select.input { padding-right: 8px; }
.std { margin-top: 14px; padding: 10px 12px; background: var(--accent-l); border-radius: 10px; font-size: 13px; }
.std b { font-family: 'Roboto Mono', monospace; color: var(--accent-dd); font-weight: 500; }
.std p { margin-top: 2px; }
.std p + p { margin-top: 8px; }
.rec { margin-top: 14px; }
.rec h3 { font-size: 16px; color: var(--accent-dd); }
.rec ul { list-style: none; margin-top: 6px; display: grid; gap: 6px; }
.rec li { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.rec li .nm { flex: 1; min-width: 0; font-size: 13.5px; line-height: 1.35; }
.rec li .nm small { display: block; color: var(--muted); font-size: 11.5px; }
.rec li a { text-decoration: none; color: inherit; }
.rec li a:hover { color: var(--accent); }
.rec .none { font-size: 13px; color: var(--muted); margin-top: 6px; }

/* 흐름: 단계·블록 */
.flow-h .count { font-family: var(--f-body); font-size: 13px; color: var(--muted); font-weight: 500; }
.stage-card { margin-top: 12px; padding: 14px; }
.stage-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.stage-top h3 { font-size: 19px; color: var(--accent-dd); }
.stage-top .n { font-size: 13px; color: var(--muted); }
.stage-empty { margin-top: 8px; font-size: 13.5px; color: var(--muted); padding: 10px; border: 1px dashed var(--line-2); border-radius: 10px; text-align: center; }
.bk { margin-top: 10px; border: 1px solid var(--line-2); border-radius: 12px; padding: 10px 12px 12px; background: #fbfdfd; }
.bk-top { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.bk-type { flex: 1 1 auto; font-size: 13px; font-weight: 700; color: var(--accent-d); min-width: 0; }
.bk-tools { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.ibtn { font: inherit; font-size: 13px; min-width: 32px; min-height: 32px; padding: 0 8px; border-radius: 8px; border: 1px solid var(--line-2); background: #fff; color: var(--accent-d); cursor: pointer; }
.ibtn:hover { background: var(--accent-l); }
.ibtn:disabled { opacity: .4; cursor: not-allowed; }
.ibtn.del { color: var(--err); }
.ibtn.sel { padding: 0 4px; }
.bk .input { min-height: 38px; font-size: 14.5px; }
.bk textarea.input.note { min-height: 44px; }
.bk textarea.input { min-height: 64px; padding: 8px 10px; line-height: 1.5; resize: vertical; }
.bk .fld { margin-top: 8px; }
.bk .lbl { font-size: 12px; }
.chrow { display: flex; align-items: center; gap: 6px; margin-top: 6px; }
.chrow .input { flex: 1; }
.chrow input[type=radio] { width: 20px; height: 20px; flex: none; accent-color: var(--ok); }
.url-ok { color: var(--ok); }
.url-warn { color: var(--warn); }
.add-row { margin-top: 10px; }
.types { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; margin-top: 8px; }
.type-btn { font: inherit; text-align: left; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line-2); background: #fff; cursor: pointer; color: var(--text); }
.type-btn:hover { border-color: var(--accent); background: var(--accent-l); }
.type-btn b { display: block; font-size: 14px; }
.type-btn small { display: block; font-size: 11.5px; color: var(--muted); line-height: 1.35; margin-top: 2px; }

/* 발행 */
.pub-empty { margin-top: 10px; font-size: 14px; color: var(--muted); }
.pub-code { margin-top: 10px; font-family: 'Roboto Mono', monospace; font-size: 32px; letter-spacing: 6px; color: var(--accent-dd); text-align: center; background: var(--accent-l); border-radius: 12px; padding: 4px 0; }
.pub-link { display: flex; gap: 6px; margin-top: 10px; }
.pub-link .input { font-family: 'Roboto Mono', monospace; font-size: 12.5px; min-height: 38px; }
.qr-wrap { display: grid; place-items: center; margin-top: 12px; }
.qr-wrap canvas { border-radius: 8px; border: 1px solid var(--line); background: #fff; }
.pub-acts { display: grid; gap: 6px; margin-top: 12px; }
.pub-warn { margin-top: 10px; font-size: 13px; }
.opt { display: flex; align-items: flex-start; gap: 8px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 14px; cursor: pointer; }
.opt input { width: 18px; height: 18px; margin-top: 3px; flex: none; accent-color: var(--accent); }
.opt small { font-size: 12px; }

/* 모달 */
.modal { position: fixed; inset: 0; z-index: 50; background: rgba(10, 30, 38, .5); display: grid; place-items: center; padding: 16px; }
.modal-card { width: min(440px, 100%); padding: 24px; }
.modal-card h2 { font-size: 22px; color: var(--accent-dd); }
.modal-card p { margin-top: 8px; color: var(--muted); font-size: 14.5px; }
.modal-acts { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; margin-top: 18px; }
.btn.danger { background: var(--err); }
.btn.danger:hover { background: #991b1b; }

/* QR 크게 보기 */
.qr-full { position: fixed; inset: 0; z-index: 60; background: #fff; display: grid; place-items: center; padding: 24px; }
.qr-close { position: absolute; top: 16px; right: 16px; }
.qr-full-in { display: flex; align-items: center; justify-content: center; gap: 4vw; flex-wrap: wrap; }
.qr-side { text-align: center; }
.qr-cap { font-size: clamp(16px, 2.2vw, 24px); color: var(--muted); }
.qr-code { font-family: 'Roboto Mono', monospace; font-size: clamp(54px, 10vw, 120px); letter-spacing: .12em; color: var(--accent-dd); line-height: 1.1; margin-top: 8px; }
.qr-url { font-family: 'Roboto Mono', monospace; font-size: clamp(14px, 1.8vw, 22px); color: var(--text); margin-top: 8px; word-break: break-all; }

/* 수업 진행(3단계): 회차 열기·대시보드 */
.lv-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.lv-title { flex: 1 1 300px; min-width: 0; }
.lv-title h1 { font-size: clamp(24px, 3.6vw, 32px); line-height: 1.25; color: var(--accent-dd); }
.lv-title p { font-size: 13.5px; }
#lv-msg { margin-top: 10px; }
.lv-grid { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 14px; margin-top: 14px; align-items: start; }
.lv-side { display: grid; gap: 14px; position: sticky; top: 66px; }
.lv-side h2 { font-size: 20px; color: var(--accent-dd); }
.lv-start { display: flex; gap: 6px; margin-top: 10px; }
.lv-start .input { flex: 1; }
.lv-start .btn { flex: none; }
.lv-note { margin-top: 10px; font-size: 13px; }
.lv-now { display: flex; align-items: center; font-size: 14px; color: #166534; }
.lv-now .muted { margin-left: 4px; }
.lv-label { font-family: var(--f-title); font-size: 26px; color: var(--accent-dd); line-height: 1.25; margin-top: 4px; }
.lv-other { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 8px; font-size: 14px; }
.lv-other summary { cursor: pointer; color: var(--accent-d); font-weight: 700; }
.lv-list { list-style: none; display: grid; gap: 6px; margin-top: 8px; }
.lv-list li { display: flex; align-items: center; gap: 4px; border: 1px solid var(--line); border-radius: 10px; padding: 4px 4px 4px 0; background: #fff; }
.lv-list li.on { border-color: var(--accent); background: var(--accent-l); }
.lv-pick { flex: 1; min-width: 0; text-align: left; font: inherit; background: none; border: 0; padding: 4px 10px; cursor: pointer; color: var(--text); }
.lv-pick .lv-name { display: flex; align-items: center; flex-wrap: wrap; }
.lv-pick b { font-size: 14.5px; }
.lv-pick small { display: block; font-size: 12px; color: var(--muted); }
.lv-list .ibtn { flex: none; text-decoration: none; display: inline-grid; place-items: center; font-size: 12px; font-weight: 700; }
.lv-main { min-width: 0; display: grid; gap: 12px; }
.dash-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.dash-head .t { min-width: 0; }
.dash-head h2 { font-size: 26px; color: var(--accent-dd); display: flex; align-items: center; }
.dash-head p { font-size: 13.5px; }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.tile { background: var(--accent-l); border-radius: 12px; padding: 10px 14px; display: grid; }
.tile span { font-size: 12.5px; font-weight: 700; color: var(--muted); }
.tile b { font-family: 'Roboto Mono', monospace; font-weight: 500; font-size: 28px; color: var(--accent-dd); line-height: 1.2; }
.tile small { font-size: 11.5px; color: var(--muted); }
.sub-h { font-size: 17px; margin-top: 16px; color: var(--accent-dd); }
.ptable { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 14px; }
.ptable th, .ptable td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; }
.ptable th { font-size: 12.5px; color: var(--muted); font-weight: 700; background: var(--bg); }
.ptable td.n { font-family: 'Roboto Mono', monospace; font-size: 13px; white-space: nowrap; }
.dash-blk { padding: 14px 16px; }
.dash-blk-h { display: flex; align-items: flex-start; gap: 10px; }
.dash-blk-h .t { min-width: 0; }
.dash-blk-h .num { flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--accent-l); color: var(--accent-dd); display: grid; place-items: center; font-weight: 700; font-size: 13px; margin-top: 2px; }
.dash-blk-h .kind { font-size: 12px; font-weight: 700; color: var(--muted); }
.dash-blk-h h3 { font-size: 18px; line-height: 1.3; color: var(--text); }
.dash-blk .res-sum { margin-top: 8px; }
.lcard .live-chip { margin-top: 2px; }
/* 시트 칸(4단계) */
#lv-sheet h2 { display: flex; align-items: center; gap: 6px; }
.sh-state { display: flex; align-items: center; gap: 6px; margin-top: 4px; font-size: 14px; font-weight: 700; }
.sh-meta { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2px 10px; margin-top: 8px; font-size: 13.5px; }
.sh-meta dt { color: var(--muted); }
.sh-meta dd { min-width: 0; overflow-wrap: anywhere; }
.sh-acts { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.sh-note { margin-top: 8px; font-size: 13px; }
.sh-link { display: inline-block; margin-top: 6px; font-size: 14px; font-weight: 700; color: var(--accent-d); }
.sync-dot { flex: none; display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin: 0 4px; background: #94a3b8; }
.sync-dot.s-ok { background: #16a34a; }
.sync-dot.s-pending { background: #f59e0b; }
.sync-dot.s-error { background: #dc2626; }

@media (max-width: 1099px) {
  .ed-grid { grid-template-columns: 290px minmax(0, 1fr); grid-template-areas: "book flow" "pub flow"; grid-template-rows: auto 1fr; }
  .ed-pub { position: static; }
}
@media (max-width: 899px) {
  .lv-grid { grid-template-columns: minmax(0, 1fr); }
  .lv-side { position: static; }
}
@media (max-width: 768px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .profile .who { max-width: 120px; }
  .ed-grid { grid-template-columns: minmax(0, 1fr); grid-template-areas: "book" "flow" "pub"; grid-template-rows: none; }
}
@media (max-width: 420px) {
  .row { flex-direction: column; }
  .tiles { grid-template-columns: minmax(0, 1fr); }
  .lv-start { flex-direction: column; }
  .profile .who { display: none; }
  .ed-top .btn { flex: 1 1 auto; }
  .stage-card { padding: 12px 10px; }
  .bk { padding: 8px 8px 10px; }
}

/* 5단계: 추천 자료 탭·블록 자료 출처·설정 표시 이름·내 자료·자료 운영 */
.rec-tabs { display: flex; gap: 2px; margin-top: 6px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.rec-tab { font: inherit; font-size: 13px; font-weight: 700; padding: 6px 8px; border: 0; border-bottom: 3px solid transparent; background: none; color: var(--muted); cursor: pointer; margin-bottom: -1px; min-height: 34px; }
.rec-tab[aria-selected="true"] { color: var(--accent-dd); border-bottom-color: var(--accent); }
.rec-scope { font-size: 12px; color: var(--muted); margin-top: 8px; }
.rec-foot { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; font-size: 12.5px; font-weight: 700; }
.rec-foot a { color: var(--accent-d); }
.bk-src { font-size: 12px; color: var(--muted); margin-top: 4px; overflow-wrap: anywhere; }
.bk-src b { color: var(--accent-d); }
.bk-src a { color: var(--accent-d); }
.wrap-row { flex-wrap: wrap; }
.dn-form { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.rs-tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 14px; }
.rs-grid { display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 14px; margin-top: 14px; align-items: start; }
.rs-grid h2 { font-size: 20px; color: var(--accent-dd); }
.rs-form textarea.input { min-height: 84px; padding: 8px 10px; line-height: 1.5; resize: vertical; }
.rs-form .input[type=url] { overflow-wrap: anywhere; }
.cnt { float: right; font-weight: 500; font-family: 'Roboto Mono', monospace; font-size: 11.5px; }
.rs-acts { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
#rs-fmsg:not(:empty) { margin-top: 10px; }
.std-picks .pick { font-family: 'Roboto Mono', monospace; font-size: 12px; }
.rs-table td { vertical-align: top; }
.rs-table .ttl { display: block; font-weight: 700; color: var(--text); text-decoration: none; overflow-wrap: anywhere; }
.rs-table .ttl:hover { color: var(--accent); }
.rs-table small { display: block; color: var(--muted); font-size: 12px; }
.rs-table .acts { white-space: nowrap; text-align: right; }
.rtype-s { font-size: 11.5px; font-weight: 700; color: var(--accent-d); margin-right: 6px; }
.tag.hid { background: var(--warn-bg); color: var(--warn); }
.ad-opt { border: 0; margin: 0; padding: 0; align-items: center; }
.ad-table .reasons { list-style: none; font-size: 12.5px; color: var(--muted); max-width: 320px; }
.ad-table .reasons li + li { margin-top: 2px; }
.ad-acts { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 899px) { .rs-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 420px) {
  .rs-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rs-tiles .tile b { font-size: 22px; }
}