/* 시험 다짐·피드백 — 학생 QR 화면(feedback.html), PC 관리 화면(index.html), 폰 관리 화면(mobile.html)이 함께 읽는다.
   입력 칸(.fb-*)은 세 화면이 같은 모양을 쓰고, PC 관리 화면만의 것은 .fbm-*, 폰 관리 화면만의 것은 mobile.css 의 .m-fbk-* 다.
   색은 이 파일의 토큰만 쓴다(학생 화면에는 STMS 의 토큰이 없다). */
:root {
  --fb-bg: #f5f6f8; --fb-card: #fff; --fb-line: #dfe3e8; --fb-text: #1b1f24; --fb-muted: #6b7280;
  --fb-accent: #4f46e5; --fb-accent-bg: #eef2ff; --fb-warn: #b45309; --fb-warn-bg: #fff7ed; --fb-danger: #dc2626;
}
@media (prefers-color-scheme: dark) {
  body.fb-page {
    --fb-bg: #14171a; --fb-card: #1d2126; --fb-line: #2e343b; --fb-text: #e8eaed; --fb-muted: #9aa3ad;
    --fb-accent: #a5b4fc; --fb-accent-bg: rgba(99, 102, 241, .18); --fb-warn: #fbbf24; --fb-warn-bg: #2a2114;
  }
}
[data-theme="dark"] {
  --fb-bg: #14171a; --fb-card: #1d2126; --fb-line: #2e343b; --fb-text: #e8eaed; --fb-muted: #9aa3ad;
  --fb-accent: #a5b4fc; --fb-accent-bg: rgba(99, 102, 241, .18); --fb-warn: #fbbf24; --fb-warn-bg: #2a2114;
}

/* ─── 학생 화면 껍데기 ─── */
body.fb-page { margin: 0; background: var(--fb-bg); color: var(--fb-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Malgun Gothic', 'Apple SD Gothic Neo', sans-serif; -webkit-text-size-adjust: 100%; }
body.fb-page * { box-sizing: border-box; }
.fb-wrap { max-width: 560px; margin: 0 auto; padding: 14px 14px calc(96px + env(safe-area-inset-bottom)); }
.fb-top { padding: 6px 2px 12px; }
.fb-top h1 { margin: 0; font-size: 19px; font-weight: 800; line-height: 1.3; }
.fb-top p { margin: 4px 0 0; font-size: 13px; color: var(--fb-muted); }
.fb-step { display: inline-block; margin-bottom: 6px; padding: 3px 10px; border-radius: 999px; background: var(--fb-accent-bg); color: var(--fb-accent); font-size: 12px; font-weight: 800; }
.fb-msg { text-align: center; padding: 26px 18px; }
.fb-msg b { font-size: 17px; }
.fb-msg p { margin: 8px 0 0; font-size: 14px; line-height: 1.6; color: var(--fb-muted); word-break: keep-all; }
.fb-big { font-size: 22px !important; color: var(--fb-text); }
.fb-btn { display: block; width: 100%; margin-top: 16px; padding: 14px; font-size: 16px; font-weight: 800; border: 0;
  border-radius: 12px; background: var(--fb-accent); color: #fff; cursor: pointer; }
.fb-btn:disabled { opacity: .55; }
.fb-send { position: fixed; left: 0; right: 0; bottom: 0; padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: linear-gradient(transparent, var(--fb-bg) 30%); }
.fb-send .fb-btn { max-width: 532px; margin: 0 auto; box-shadow: 0 8px 20px rgba(79, 70, 229, .3); }
.fb-nav { display: flex; gap: 8px; justify-content: center; }
.fb-nav .fb-btn { margin: 0; max-width: 532px; }
.fb-nav .fb-back { flex: 0 0 30%; max-width: 160px; background: var(--fb-card); color: var(--fb-text); border: 1px solid var(--fb-line); box-shadow: none; }
.fb-prog { margin-top: 10px; display: flex; flex-direction: column; gap: 5px; }
.fb-prog i { display: block; height: 6px; border-radius: 999px; background: var(--fb-line); overflow: hidden; }
.fb-prog em { display: block; height: 100%; border-radius: 999px; background: var(--fb-accent); transition: width .2s; }
.fb-prog span { font-size: 12.5px; font-weight: 700; color: var(--fb-muted); }
.fb-rv { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; width: 100%; margin-top: 8px; padding: 11px 12px; text-align: left;
  border: 1px solid var(--fb-line); border-radius: 12px; background: none; color: var(--fb-text); font: inherit; cursor: pointer; }
.fb-rv b { font-size: 14px; }
.fb-rv span { grid-column: 1; font-size: 13px; color: var(--fb-muted); line-height: 1.5; word-break: keep-all; }
.fb-rv em { grid-column: 1; font-style: normal; font-size: 12.5px; font-weight: 700; color: var(--fb-warn); line-height: 1.5; word-break: keep-all; }
.fb-rv small { grid-column: 2; grid-row: 1 / span 3; align-self: center; font-size: 12.5px; font-weight: 700; color: var(--fb-accent); }
.fb-block-dim { background: rgba(15, 23, 42, .45); z-index: 40; }
.fb-block-dim .fb-block-box { background: var(--fb-card); padding: 22px 28px; border-radius: 16px; }
.fb-dlg { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(15, 23, 42, .5); }
.fb-dlg-box { width: 100%; max-width: 380px; padding: 22px 20px 14px; border-radius: 18px; background: var(--fb-card); color: var(--fb-text); text-align: center; box-shadow: 0 20px 50px rgba(0, 0, 0, .25); }
.fb-dlg-t { display: block; font-size: 18px; font-weight: 800; }
.fb-dlg-b { margin-top: 10px; font-size: 14px; line-height: 1.6; color: var(--fb-muted); word-break: keep-all; }
.fb-dlg-b p { margin: 6px 0 0; }
.fb-dlg-b small { display: block; color: var(--fb-warn); font-weight: 700; }
.fb-dlg-warn { margin: 0; padding: 10px 12px; list-style: none; text-align: left; border-radius: 10px; background: var(--fb-warn-bg); color: var(--fb-warn); font-weight: 700; font-size: 13.5px; }
.fb-dlg-warn li + li { margin-top: 4px; }
.fb-dlg-cancel { display: block; width: 100%; margin-top: 6px; padding: 12px; border: 0; background: none; color: var(--fb-muted); font: inherit; font-size: 15px; font-weight: 700; cursor: pointer; }
.fb-rv.missing { border: 2px solid var(--fb-danger); background: rgba(220, 38, 38, .05); }
.fb-rv.missing small { color: var(--fb-danger); }
.fb-rv.missing em { color: var(--fb-danger); }
.fb-warn { color: var(--fb-danger); }
.fb-in.fb-dup { border: 2px solid var(--fb-danger) !important; }
.fb-err:empty { display: none; }
.fb-err { margin: 4px 0 0; font-size: 12.5px; font-weight: 700; color: var(--fb-danger); }
.fb-in.fb-miss { border: 2px solid var(--fb-danger) !important; background: rgba(220, 38, 38, .05); }
.fb-in.fb-qc { border: 2px solid var(--fb-danger) !important; background: rgba(220, 38, 38, .05); }
.fb-qc-why { margin: 4px 0 0; font-size: 13px; font-weight: 700; color: var(--fb-danger); line-height: 1.45; word-break: keep-all; }   /* 대충 쓴 글로 돌려받은 이유 */
.fb-none { margin: 4px 0 8px; }
.fb-nowrong .fb-wrongs, .fb-nowrong .fb-add { display: none; }
.fb-lk { margin-top: 12px; }
.fb-lk-h { display: block; font-size: 12.5px; font-weight: 800; color: var(--fb-muted); padding-bottom: 4px; margin-bottom: 4px; border-bottom: 1px solid var(--fb-line); }
.fb-lk-s { padding: 10px 12px; margin-top: 8px; border-radius: 12px; background: var(--fb-card); border: 1px solid var(--fb-line); }
.fb-lk-n { display: block; font-size: 14.5px; margin-bottom: 4px; }
.fb-lk-s dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; font-size: 13.5px; line-height: 1.5; }
.fb-lk-s dt { color: var(--fb-muted); font-size: 12.5px; font-weight: 700; white-space: nowrap; padding-top: 1px; }
.fb-lk-s dd { margin: 0; min-width: 0; word-break: keep-all; }
.fb-lk-s dd.dim { color: var(--fb-muted); }
.fb-lk-chip { display: inline-block; margin: 0 4px 4px 0; padding: 1px 8px; border-radius: 999px; background: var(--fb-bg); border: 1px solid var(--fb-line); font-size: 12.5px; }
.fb-lk p { margin: 1px 0; font-size: 13.5px; line-height: 1.55; word-break: keep-all; }
.fb-lk p.dim { color: var(--fb-muted); }
.fb-lk-k { display: flex; align-items: baseline; gap: 8px; }
.fb-lk-k span { flex: 0 0 auto; min-width: 58px; text-align: center; padding: 1px 6px; border-radius: 6px; font-size: 11.5px; font-weight: 800; border: 1px solid var(--fb-line); color: var(--fb-muted); }
.fb-lk-k span.k-kept { background: var(--fb-accent); border-color: var(--fb-accent); color: #fff; }
.fb-lk-k span.k-half { color: var(--fb-warn); border-color: var(--fb-warn); }
.fb-lk-k span.k-missed { color: var(--fb-danger); border-color: var(--fb-danger); }
.fb-advice { margin-top: 10px; padding: 10px 12px; border-radius: 10px; background: var(--fb-accent-bg); font-size: 13px; line-height: 1.55; }
.fb-advice b { display: block; color: var(--fb-text); }
.fb-advice span { color: var(--fb-accent); font-weight: 700; }
.fb-reject { margin-top: 10px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--fb-danger); background: rgba(220, 38, 38, .06); text-align: left; }
.fb-reject b { display: block; font-size: 13px; color: var(--fb-danger); }
.fb-reject span { display: block; margin-top: 2px; font-size: 14px; color: var(--fb-text); line-height: 1.5; word-break: keep-all; white-space: pre-wrap; }
.fb-alert { position: fixed; left: 50%; bottom: calc(84px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  max-width: 92vw; padding: 11px 16px; border-radius: 12px; background: #111827; color: #fff; font-size: 14px;
  opacity: 0; pointer-events: none; transition: .2s; z-index: 20; }
.fb-alert.show { opacity: 1; transform: translate(-50%, 0); }
.fb-block { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: var(--fb-bg); z-index: 30; }
.fb-block-box { text-align: center; color: var(--fb-muted); }
.fb-block-box b { display: block; margin-top: 12px; color: var(--fb-text); }
.fb-spin { display: inline-block; width: 30px; height: 30px; border: 3px solid var(--fb-line); border-top-color: var(--fb-accent);
  border-radius: 50%; animation: fbspin .8s linear infinite; }
@keyframes fbspin { to { transform: rotate(360deg); } }

/* ─── 입력 칸(세 화면 공용) ─── */
.fb-card { background: var(--fb-card); border: 1px solid var(--fb-line); border-radius: 16px; padding: 16px; margin-bottom: 12px; color: var(--fb-text); }
.fb-h { margin: 0 0 6px; font-size: 17px; font-weight: 800; }
.fb-h small { font-size: 12px; font-weight: 600; color: var(--fb-muted); }
.fb-f { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; min-width: 0; }
.fb-f > span { font-size: 13px; font-weight: 700; color: var(--fb-muted); }
.fb-in { width: 100%; padding: 11px 12px; font: inherit; font-size: 16px; /* 16px 이상이라야 iOS 가 확대하지 않는다 */
  border: 1px solid var(--fb-line); border-radius: 10px; background: var(--fb-bg); color: var(--fb-text); min-width: 0; }
select.fb-in { appearance: auto; }
textarea.fb-in { resize: vertical; line-height: 1.5; }
.fb-in:focus { outline: 2px solid var(--fb-accent); outline-offset: -1px; }
.fb-hint { margin: 0 0 4px; font-size: 12.5px; color: var(--fb-muted); line-height: 1.55; word-break: keep-all; }
.fb-wrongs { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.fb-wrong { padding: 10px; border: 1px solid var(--fb-line); border-radius: 12px; background: var(--fb-bg); }
.fb-wrong-top { display: flex; gap: 6px; }
.fb-wrong-top .fb-no { flex: 0 0 62px; text-align: center; }
.fb-essay { flex: 0 0 auto; padding: 0 9px; border-radius: 10px; border: 1px solid var(--fb-line); background: var(--fb-card); color: var(--fb-muted); font: inherit; font-size: 12.5px; font-weight: 700; cursor: pointer; }
.fb-essay.on { border-color: var(--fb-accent); background: var(--fb-accent-bg); color: var(--fb-accent); }
.fb-wrong-top .fb-in { background: var(--fb-card); }
.fb-x { flex: 0 0 36px; border: 0; border-radius: 10px; background: transparent; color: var(--fb-muted); font-size: 22px; cursor: pointer; }
.fb-cap { margin: 9px 0 -2px; font-size: 12px; font-weight: 700; color: var(--fb-muted);  word-break: keep-all; }
.fb-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.fb-f > .fb-chips { margin-top: 0; }
.fb-chip { padding: 8px 11px; border: 1.5px solid var(--fb-line); border-radius: 999px; background: var(--fb-card);
  color: var(--fb-muted); font: inherit; font-size: 13.5px; font-weight: 700; cursor: pointer; }
.fb-chip.on { border-color: var(--fb-accent); background: var(--fb-accent-bg); color: var(--fb-accent); }
.fb-add { width: 100%; margin-top: 10px; padding: 10px; border: 1.5px dashed var(--fb-line); border-radius: 12px; background: transparent;
  color: var(--fb-accent); font: inherit; font-size: 14px; font-weight: 800; cursor: pointer; }
.fb-plan { border: 2px solid var(--fb-accent); }
/* 목표와 점수 */
.fb-score-head, .fb-score-row { display: grid; grid-template-columns: 48px minmax(0, 1fr) minmax(0, 1fr) 50px; gap: 8px; align-items: center; }
.fb-score-head { font-size: 12px; font-weight: 700; color: var(--fb-muted); margin: 8px 0 2px; text-align: center; }
.fb-score-row { padding: 4px 0; }
.fb-score-row b { font-size: 15px; }
.fb-score-row .fb-in { text-align: center; }
.fb-fixed { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 46px; border-radius: 10px;
  background: var(--fb-accent-bg); color: var(--fb-accent); font-size: 17px; font-weight: 800; line-height: 1.05; }
.fb-fixed small { font-size: 10px; font-weight: 700; opacity: .8; }
/* 피드백의 목표 — 다짐에서 온 값을 보이기만(고치지 않는다) */
.fb-fixed.fb-tgt { background: var(--fb-bg); color: var(--fb-text); }
.fb-fixed.fb-tgt.none { color: var(--fb-muted); font-weight: 600; }
.fb-ach { text-align: center; }
.fb-ach em { font-style: normal; font-size: 12px; font-weight: 800; padding: 3px 7px; border-radius: 999px; white-space: nowrap; }
.fb-ach em.yes { background: #dcfce7; color: #15803d; }
.fb-ach em.no { background: #fee2e2; color: #b91c1c; }
/* 다짐 */
.fb-keep { padding: 10px 0; border-top: 1px solid var(--fb-line); }
.fb-keep:first-of-type { border-top: 0; }
.fb-keep > span { display: block; font-size: 15px; font-weight: 700; word-break: keep-all; }
.fb-targets { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 8px; margin-top: 8px; }
.fb-targets .fb-f { margin-top: 0; }
.fb-targets .fb-in { text-align: center; }
.fb-ress { display: flex; flex-wrap: wrap; gap: 6px 12px; margin: 4px 0; font-size: 13.5px; font-weight: 600; color: var(--fb-muted); }
.fb-res b { color: var(--fb-text); font-size: 15px; }
.fb-res em { font-style: normal; font-size: 11px; font-weight: 800; padding: 2px 6px; border-radius: 999px; }
.fb-res em.yes { background: #dcfce7; color: #15803d; }
.fb-res em.no { background: #fee2e2; color: #b91c1c; }
.fb-last { font-size: 11.5px; color: var(--fb-muted); text-align: center; font-weight: 600; }
.fb-prev { border-color: var(--fb-accent); background: var(--fb-accent-bg); }
.fb-prevplan { display: flex; align-items: center; gap: 8px; width: 100%; margin-top: 8px; padding: 11px 12px; text-align: left;
  border: 1px solid var(--fb-line); border-radius: 12px; background: var(--fb-card); color: var(--fb-text); font: inherit; cursor: pointer; }
.fb-prevplan span { flex: 1; font-size: 15px; font-weight: 700; word-break: keep-all; }
.fb-prevplan.done { opacity: .5; }
.fb-prevplan.done em { visibility: hidden; }
.fb-prevplan em { font-style: normal; font-size: 12px; font-weight: 800; color: var(--fb-accent); white-space: nowrap; }

/* ─── PC 관리 화면 ─── */
.fbm { display: flex; flex-direction: column; gap: 14px; max-width: 1240px; }
.fbm-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.fbm-bar select { height: 36px; padding: 0 10px; border-radius: 9px; border: 1px solid var(--border-color); background: var(--card-bg); color: var(--text-main); font: inherit; font-size: 14px; min-width: 240px; }
.fbm-spacer { flex: 1; }
.fbm-print-gap { width: 1px; height: 18px; background: var(--border-color); margin: 0 4px; }
.fbm-phase { display: inline-flex; padding: 3px; gap: 2px; border-radius: 10px; background: var(--bg-color); border: 1px solid var(--border-color); }
.fbm-phase button { padding: 6px 12px; border: 0; border-radius: 7px; background: none; font: inherit; font-size: 13px; font-weight: 700; color: var(--text-muted); cursor: pointer; }
.fbm-phase button.on { background: var(--card-bg); color: var(--primary-color); box-shadow: 0 1px 3px rgba(15, 23, 42, .12); }
.fbm-phase button:disabled { cursor: default; }
.fbm-print { padding: 8px 12px; border-radius: 12px; background: var(--card-bg); border: 1px solid var(--border-color); }
.fbm-print-l { font-size: 12.5px; color: var(--text-muted); margin-right: 4px; }
.fbm-print-l b { color: var(--text-main); }
.fbm-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.fbm-kpi { padding: 14px 16px; border-radius: 12px; background: var(--card-bg); border: 1px solid var(--border-color); min-width: 0; }
.fbm-kpi span { display: block; font-size: 12px; font-weight: 700; color: var(--text-muted); }
.fbm-kpi b { display: block; font-size: 20px; font-weight: 800; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fbm-kpi small { display: block; font-size: 11.5px; color: var(--text-muted); margin-top: 2px; }
.fbm-sum { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 10px; }
.fbm-card { padding: 14px 16px; border-radius: 12px; background: var(--card-bg); border: 1px solid var(--border-color); }
.fbm-card h3 { margin: 0 0 10px; font-size: 13.5px; font-weight: 800; display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.fbm-card h3 span { font-size: 11.5px; color: var(--text-muted); font-weight: 600; }
/* 막대 묶음 — 이름 칸 폭을 묶음에서 가장 긴 이름에 맞춘다(고정 폭이면 «교과서·학교 프린트를 2번 이상 봤다» 가 잘렸다) */
.fbm-bars { display: grid; grid-template-columns: minmax(0, max-content) minmax(60px, 1fr) 30px; gap: 6px 8px; align-items: center; }
.fbm-barrow { display: contents; font-size: 12.5px; }
.fbm-barrow span { font-size: 12.5px; line-height: 1.35; word-break: keep-all; }
.fbm-barrow b { font-size: 12.5px; }
.fbm-barrow i { display: block; height: 9px; border-radius: 99px; background: var(--bg-color); overflow: hidden; }
.fbm-barrow i em { display: block; height: 100%; background: var(--primary-color); border-radius: inherit; }
.fbm-barrow b { text-align: right; }
.fbm-topics { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }
.fbm-topics span { padding: 3px 9px; border-radius: 999px; background: var(--bg-color); font-size: 12px; }
.fbm-topics span em { font-style: normal; color: var(--text-muted); margin-left: 3px; }
.fbm-muted { font-size: 12px; color: var(--text-muted); }
.fbm-dim { color: var(--text-muted); }
.fbm-ok, .fbm-no { font-style: normal; font-size: 11px; font-weight: 800; padding: 1px 6px; border-radius: 999px; }
.fbm-ok { background: var(--success-light); color: var(--success-color); }
.fbm-no { background: var(--danger-light); color: var(--danger-color); }
.fbm-tablewrap { overflow-x: auto; border: 1px solid var(--border-color); border-radius: 12px; background: var(--card-bg); }
.fbm-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.fbm-table th { text-align: left; padding: 9px 10px; font-size: 12px; color: var(--text-muted); background: var(--bg-color); border-bottom: 1px solid var(--border-color); white-space: nowrap; }
.fbm-table td { padding: 8px 10px; border-bottom: 1px solid var(--border-color); vertical-align: middle; white-space: nowrap; }
.fbm-table tr:last-child td { border-bottom: none; }
.fbm-table tbody tr { cursor: pointer; }
.fbm-table tbody tr:hover { background: var(--bg-hover); }
.fbm-table td.fbm-plan { max-width: 280px; overflow: hidden; text-overflow: ellipsis; }
.fbm-st { padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 800; white-space: nowrap; }
.fbm-st.done { color: var(--text-muted); font-weight: 700; }   /* QR 로 내고 확인함 — 색을 빼 «확인 전»·«반려»만 눈에 띄게 */
.fbm-st.none { color: var(--text-muted); }
.fbm-st.pending { background: var(--danger-color); color: #fff; }
.fbm-st.ai { background: var(--warning-light); color: var(--warning-color); }   /* 대충 쓴 글로 두 번 돌려받은 뒤 그대로 냄 */
.fbm-aiflag { display: block; margin-top: 4px; color: var(--warning-color); font-weight: 600; }
.fbm-aiflag b { margin-right: 4px; }
.fbm-st.rejected { background: var(--danger-light, #fee2e2); color: var(--danger-color); }
.fbm-filter button[data-pend] { border-color: var(--danger-color); color: var(--danger-color); }
.fbm-filter button[data-pend].on { background: var(--danger-color); color: #fff; }
/* 학생 창의 검토 줄 — 상태 글과 [확인]·[반려]·[안 낸 것으로] */
.fbm-acts { flex-shrink: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: -2px 0 10px; padding: 8px 10px; border-radius: 10px; background: var(--bg-color); }
.fbm-rv-l { flex: 1 1 220px; min-width: 0; font-size: 12.5px; color: var(--text-muted); line-height: 1.5; }
.fbm-rv { display: inline-block; margin-right: 6px; padding: 1px 8px; border-radius: 999px; font-size: 11.5px; }
.fbm-rv.pending { background: var(--danger-color); color: #fff; }
.fbm-rv.ok { background: var(--primary-light); color: var(--primary-color); }
.fbm-rv.rejected { background: var(--danger-light, #fee2e2); color: var(--danger-color); }
.fbm-why { display: flex; flex-wrap: nowrap; gap: 4px; }
.fbm-why span { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--bg-color); white-space: nowrap; }
.fbm-empty { padding: 48px 16px; text-align: center; color: var(--text-muted); border: 1px dashed var(--border-color); border-radius: 12px; line-height: 1.7; }
.fbm-filter { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.fbm-filter i { width: 1px; height: 18px; background: var(--border-color); margin: 0 4px; }
.fbm-filter button { padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border-color); background: var(--card-bg); color: var(--text-muted); font: inherit; font-size: 12.5px; font-weight: 700; cursor: pointer; }
.fbm-filter button.on { border-color: var(--primary-color); background: var(--primary-light); color: var(--primary-color); }
.fbm-lbl { display: block; font-size: 12px; font-weight: 700; margin: 12px 0 5px; }
.fbm-lbl:first-child { margin-top: 0; }
.fbm-radio { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 13.5px; }
.fbm-radio label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.fbm-radio small { color: var(--text-muted); font-size: 11.5px; }
/* 학년별 시험 과목 고르기(PC 시트·폰 창 공용) — 칩 모양은 단원 목록(.fbu-chip)과 같다 */
.fbex-row { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-top: 1px dashed var(--border-color); }
.fbex-row:first-child { border-top: 0; }
.fbex-row > b { flex: 0 0 34px; font-size: 13.5px; }
.fbex-items { display: flex; flex-wrap: wrap; gap: 5px; }
/* 인쇄 대상 고르기(PC 시트·폰 창 공용) */
.fbpk-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 8px; }
.fbpk-bar button, .fbpk-g { padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border-color); background: var(--card-bg); color: var(--text-main); font: inherit; font-size: 12.5px; font-weight: 700; cursor: pointer; }
.fbpk-bar b { margin-left: auto; font-size: 12.5px; color: var(--primary-color); }
.fbpk-group { padding: 8px 0; border-top: 1px dashed var(--border-color); }
.fbpk-g { border: 0; padding: 2px 0; background: none; }
.fbpk-g small { font-weight: 600; color: var(--text-muted); }
.fbpk-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 4px 10px; margin-top: 4px; }
.fbpk-item { display: flex; align-items: center; gap: 6px; padding: 4px 2px; font-size: 13.5px; cursor: pointer; }
.fbpk-item input { width: 16px; height: 16px; accent-color: var(--primary-color); }
.fbpk-item em { font-style: normal; font-size: 11px; color: var(--text-muted); }
.fbm-units { display: flex; flex-direction: column; gap: 12px; }
.fbu { border: 1px solid var(--border-color); border-radius: 10px; padding: 10px 12px; background: var(--card-bg); }
.fbu-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 6px; font-size: 13.5px; }
.fbu-head span { font-size: 12px; color: var(--text-muted); }
.fbu-head em { margin-left: auto; font-style: normal; font-size: 12px; font-weight: 800; color: var(--primary-color); }
.fbu-hint { margin: 0 0 6px; font-size: 12px; color: var(--text-muted); line-height: 1.5; }
.fbu-group { display: grid; grid-template-columns: 230px 1fr; gap: 6px 10px; padding: 5px 0; border-top: 1px dashed var(--border-color); }
.fbu-glabel { align-self: start; padding: 4px 0; border: 0; background: none; color: var(--text-main); font: inherit; font-size: 12.5px; font-weight: 800; text-align: left; cursor: pointer; }
.fbu-glabel small { white-space: nowrap; font-weight: 600; color: var(--text-muted); }
.fbu-glabel:hover { color: var(--primary-color); }
.fbu-items { display: flex; flex-wrap: wrap; gap: 5px; }
.fbu-chip { position: relative; cursor: pointer; }
.fbu-chip input { position: absolute; opacity: 0; pointer-events: none; }
.fbu-chip span { display: inline-block; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--border-color); color: var(--text-muted); font-size: 12.5px; font-weight: 600; }
.fbu-chip input:checked + span { border-color: var(--primary-color); background: var(--primary-light); color: var(--primary-color); font-weight: 800; }
.fbu-chip input:focus-visible + span { outline: 2px solid var(--primary-color); outline-offset: 1px; }
.fbu textarea { display: block; width: 100%; margin-top: 6px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--card-bg); color: var(--text-main); padding: 7px 10px; font: inherit; font-size: 13px; resize: vertical; box-sizing: border-box; }
@media (max-width: 640px) { .fbu-group { grid-template-columns: 1fr; gap: 4px; } }
.fbm-tabs { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.fbm-tabs button { padding: 7px 16px; border-radius: 999px; border: 1px solid var(--border-color); background: var(--card-bg); color: var(--text-muted); font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; }
.fbm-tabs button.on { border-color: var(--primary-color); background: var(--primary-light); color: var(--primary-color); }
.fbm-tabs span { margin-left: 6px; }
/* 대신 입력 창 — 시트(fill)가 높이를 정하고 칸 목록만 스크롤한다(스크롤이 두 겹이 되지 않게). */
.fbm-editor { flex: 1; min-height: 0; overflow: auto; padding: 2px; }
.fbm-editor .fb-card { background: var(--fb-card); }
@media (max-width: 1000px) { .fbm-kpis { grid-template-columns: repeat(2, 1fr); } }

/* 회차에서 빼기(2026-10-12) — 줄 맨 오른쪽, 줄에 올리면 뜬다. */
.fbm-table td.fbm-xtd { width: 28px; padding-left: 0; padding-right: 6px; text-align: right; }
.fbm-x {
  display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px;
  border: none; border-radius: 6px; background: transparent; color: var(--text-muted); cursor: pointer; opacity: 0; transition: opacity .12s;
}
.fbm-table tbody tr:hover .fbm-x, .fbm-x:focus-visible { opacity: 1; }
.fbm-x:hover { background: rgba(239, 68, 68, .12); color: var(--danger-color); }
.fbm-x svg { width: 15px; height: 15px; }

/* 분석 카드 접기(2026-10-12) */
.fbm-sumwrap { border-radius: 12px; }
.fbm-sumwrap > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 12px; background: var(--card-bg); border: 1px solid var(--border-color);
  font-size: 13.5px; font-weight: 800; color: var(--text-main);
}
.fbm-sumwrap > summary::-webkit-details-marker { display: none; }
.fbm-sumwrap > summary:hover { border-color: var(--primary-color); }
.fbm-sumwrap > summary > span { font-size: 12px; font-weight: 600; color: var(--text-muted); }
.fbm-sumwrap > summary svg { width: 16px; height: 16px; }
.fbm-sumwrap > summary .fbm-sumcaret { margin-left: auto; transition: transform .15s; color: var(--text-muted); }
.fbm-sumwrap[open] > summary .fbm-sumcaret { transform: rotate(180deg); }
.fbm-sumwrap[open] > .fbm-sum { margin-top: 10px; }