/* 10-10 출결 「줄 판」 (js/lineboard.js · 시안 docs/teacher_home_v2/board/att2 그대로) */
.lb-bar { display: flex; align-items: center; gap: 8px; margin: 0 0 8px; flex-wrap: wrap; }
.lb-find { display: flex; align-items: center; gap: 6px; height: 32px; padding: 0 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); width: 240px; }
.lb-find input { border: 0; outline: 0; background: none; font: 600 13.5px var(--font); color: var(--text); width: 100%; }
.lb-find .ic { color: var(--text-3); }
.lb-sp { flex: 1; min-width: 4px; }
.lb-lg { font-size: 11.5px; color: var(--text-3); display: inline-flex; gap: 6px; align-items: center; }
.lb-lg .st { font-style: normal; display: inline-grid; place-items: center; width: 18px; height: 16px; border-radius: 4px; font-size: 10.5px; font-weight: 800; color: var(--line-strong); }
.lb-lg .st.ok { color: var(--ok); } .lb-lg .st.late { background: #FFE9B8; color: #7A4800; } .lb-lg .st.absent { background: var(--bad); color: #fff; }
.lb-seg { display: inline-grid; grid-auto-flow: column; height: 32px; padding: 3px; background: var(--mute-soft, var(--surface-2)); border-radius: 9px; }
.lb-seg button { border: 0; background: none; border-radius: 7px; padding: 0 12px; font: 700 13px var(--font); color: var(--text-2); cursor: pointer; }
.lb-seg button.on { background: var(--surface); color: var(--text); box-shadow: var(--sh-1); }
.lb-bd { display: flex; gap: 8px; align-items: flex-start; }
.lb-blk { min-width: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.lb-h { position: relative; display: flex; align-items: center; gap: 8px; height: 36px; padding: 0 8px 0 12px; border-bottom: 1px solid var(--line); background: var(--surface-2); white-space: nowrap; }
.lb-h .cb { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--cc); }
.lb-h .tm { font-size: 12.5px; font-weight: 800; font-variant-numeric: tabular-nums; }
.lb-h .nm { font-size: 13.5px; font-weight: 800; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.lb-h .pp, .lb-h .dn { font-size: 12px; color: var(--text-3); }
.lb-h .sum { font-size: 12px; color: var(--text-2); } .lb-h .sum b.bad { color: var(--bad); }
.lb-h .btn { height: 26px; min-height: 0; padding: 0 10px; font-size: 12.5px; }
.lt { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: 800; }
.lt i { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.lt.blue { color: #1A5CFF; } .lt.blue i { background: #1A5CFF; box-shadow: 0 0 0 3px #DCE6FF; }
.lt.red { color: var(--bad); } .lt.red i { background: var(--bad); box-shadow: 0 0 0 3px var(--bad-soft); }
@keyframes lbBlink { 0%, 55% { opacity: 1; } 56%, 100% { opacity: .15; } }
.lt.blink i, .lb-chips .ld.blink { animation: lbBlink 1s steps(1) infinite; }
@media (prefers-reduced-motion: reduce) { .lt.blink i, .lb-chips .ld.blink { animation: none; width: 12px; height: 12px; outline: 2px solid var(--bad); } }
/* 줄기: 신문처럼 세로로 흐름 (grid-auto-flow column + 줄 수 = 저절로) */
.lb-cols { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); }
.lb-rw { position: relative; display: flex; align-items: center; gap: 6px; width: 100%; min-width: 0; padding: 0 6px 0 8px; border: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); background: var(--surface); font: inherit; color: var(--text); text-align: left; cursor: pointer; }
.lb-rw:hover { background: var(--brand-soft); }
.lb-rw .no { width: 16px; flex: none; font-size: 10.5px; color: var(--text-3); text-align: right; font-variant-numeric: tabular-nums; }
.lb-rw .sn { flex: 1; min-width: 0; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-rw .bg { font-size: 10px; font-weight: 800; color: #9A5B00; background: #FFF3DB; border-radius: 3px; padding: 0 3px; margin-left: 3px; }
.lb-rw .st { flex: none; width: 40px; height: 18px; padding: 0 4px; border-radius: 4px; display: inline-grid; place-items: center; font-size: 10.5px; font-weight: 800; color: var(--line-strong); white-space: nowrap; }
.lb-rw .st.ok { color: var(--ok); }
.lb-rw .st.late, .lb-rw .st.early { background: #FFE9B8; color: #7A4800; }
.lb-rw .st.absent { background: var(--bad); color: #fff; }
.lb-rw.s-absent .sn { color: var(--bad); font-weight: 800; }
.lb-rw.s-late .sn, .lb-rw.s-early .sn { color: #7A4800; font-weight: 800; }
.finding .lb-rw { opacity: .7; }
.finding .lb-rw.hit { opacity: 1; box-shadow: inset 0 0 0 2px #E8A100; border-radius: 4px; }
/* 고르기 창 · 저장 알림 */
.lb-pk { position: fixed; z-index: 90; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 10px; box-shadow: var(--sh-3); padding: 8px; width: 250px; }
.lb-pk p { margin: 0 0 6px; font-size: 12.5px; font-weight: 800; } .lb-pk p small { color: var(--text-3); font-weight: 600; }
.lb-pk .g4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 4px; }
.lb-pk .g4 button[data-v="absent"] { margin-left: 6px; }
.lb-pk button { height: 40px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); font: 800 13px var(--font); color: var(--text); cursor: pointer; }
.lb-pk button.absent { border-color: var(--bad); color: var(--bad); }
.lb-pk button.cur { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }
.lb-pk .rsg { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.lb-pk .rsg button { height: 30px; padding: 0 9px; border-radius: 999px; font-size: 12px; }
.lb-pk .rsg button.on { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.lb-pk small.h { display: block; margin-top: 6px; font-size: 11px; color: var(--text-3); }
.lb-pk.sheet { left: 0; right: 0; bottom: 0; width: auto; border-radius: 14px 14px 0 0; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); }
.lb-pk.sheet .g4 button { height: 48px; font-size: 14.5px; }
.lb-sv { position: fixed; left: 50%; bottom: calc(var(--tab-h, 0px) + 20px); transform: translateX(-50%); z-index: 95; display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 10px; background: #0E1629; color: #fff; font-size: 13px; font-weight: 600; box-shadow: var(--sh-3); white-space: nowrap; max-width: calc(100vw - 24px); }
.lb-sv button { border: 0; background: none; color: #8FB0FF; font: 800 13px var(--font); cursor: pointer; }
/* 좁은 화면: 반 칩으로 한 반씩 */
.lb-chips { display: none; gap: 6px; margin: 0 0 8px; }
.lb-chips button { flex: 1; min-width: 0; height: 36px; padding: 0 8px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); font: 700 12.5px var(--font); color: var(--text-2); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 5px; white-space: nowrap; overflow: hidden; }
.lb-chips button i { width: 8px; height: 8px; border-radius: 50%; background: var(--cc); flex: none; }
.lb-chips button.on { border-color: var(--brand); color: var(--brand); background: var(--brand-soft); }
.lb-chips .ld { width: 8px; height: 8px; border-radius: 50%; flex: none; display: none; }
.lb-chips .ld.blue { display: inline-block; background: #1A5CFF; } .lb-chips .ld.red { display: inline-block; background: var(--bad); }
@media (max-width: 1180px) { .lb-lg { display: none; } }
@media (max-width: 999px) { .lb-chips { display: flex; } .lb-blk { display: none; } .lb-blk.show { display: block; flex: 1 1 auto !important; } .lb-rw .sn { font-size: 14px; } }
@media (max-width: 760px) { .lb-find { width: auto; flex: 1; } .lb-h .pp { display: none; } .lb-rw .sn { font-size: 14.5px; } .lb-rw .st { height: 22px; font-size: 12px; } }
.lb-title { display: flex; align-items: baseline; gap: 10px; margin: 0 0 8px; flex-wrap: wrap; } .lb-title h1 { margin: 0; font-size: 20px; } .lb-title span { font-size: 13px; color: var(--text-3); }
.lb-h .nm { flex: 1 1 auto; min-width: 48px; } .lb-h .lt, .lb-h .sum { flex: none; }
@media (max-width: 1500px) { .lb-h .pp { display: none; } }

/* 10-12 반 화면 「오늘」 탭 넓은 줄: 이름 · [출][지][조][결] · 오늘 특이 사항 한 줄 */
.lb-rw.rich { cursor: default; gap: 8px; }
.lb-rw.rich:hover { background: none; }
.lb-rw.rich .sn { flex: 0 0 70px; }
.lb-at { flex: none; display: inline-flex; gap: 3px; }
.lb-ab { width: 30px; height: 26px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--surface); font: 800 12px var(--font); color: var(--text-3); cursor: pointer; padding: 0; }
.lb-ab.in.on { background: #E6F4EA; border-color: #8BC8A0; color: #17703A; }
.lb-ab.late.on, .lb-ab.early.on { background: #FFE9B8; border-color: #E8B85A; color: #7A4800; }
.lb-ab.absent.on { background: var(--bad); border-color: var(--bad); color: #fff; }
.lb-ln { flex: 1; min-width: 0; font-size: 12.5px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: text; padding: 3px 4px; border-radius: 6px; }
.lb-ln:hover { background: var(--surface-2); } .lb-ln .ph { color: var(--text-3); opacity: .75; }
.lb-ln input { width: 100%; height: 26px; border: 1px solid var(--brand); border-radius: 6px; padding: 0 6px; font: inherit; font-size: 13px; background: var(--surface); color: var(--text); box-sizing: border-box; }
.lb-ln.saved input { border-color: var(--ok); box-shadow: 0 0 0 2px color-mix(in srgb, var(--ok) 25%, transparent); }
@media (pointer: coarse) { .lb-ab { width: 36px; height: 34px; } }
@media (max-width: 560px) { .lb-rw.rich { flex-wrap: wrap; height: auto !important; padding: 4px 6px 4px 8px; } .lb-rw.rich .lb-ln { flex-basis: 100%; padding-left: 22px; } }

/* 10-12 학생 탭 줄 출결 · 특이 사항(att-note.js) */
.tc-st .an-at { margin-left: 4px; } .tc-st .an-ln { flex: 1 1 160px; } .tc-st .st-meta { flex: 0 1 auto; }
.an-why { display: flex; flex-wrap: wrap; gap: 5px; padding: 6px 10px 8px 40px; border-top: 1px dashed var(--line); background: var(--surface-2); }
.an-why button { min-height: 30px; padding: 0 10px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); font: 700 12.5px var(--font); color: var(--text); cursor: pointer; }
.an-why button.on { background: #1F4FD1; border-color: #1F4FD1; color: #fff; } .an-why .x { margin-left: auto; border-style: dashed; }
@media (max-width: 1100px) { .tc-st .st-l { display: none; } }
@media (max-width: 640px) { .tc-st { flex-wrap: wrap; } .tc-st .an-ln { flex-basis: 100%; order: 9; } .tc-st .st-meta { display: none; } }