:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",sans-serif;color:#263547;background:#f5f7fa;font-size:14px;--accent:#356d62;--line:#e3e9ed}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer;background:#fff;color:inherit;border:1px solid var(--line);border-radius:8px;padding:9px 12px;min-height:38px}button:hover{background:#edf5f2}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #73a9df;outline-offset:2px}.primary{background:var(--accent);color:white;border-color:var(--accent)}.danger{color:#ab3444}.top{height:84px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 32px;gap:15px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:inherit;font-size:21px;font-weight:750}.mark{display:grid;place-items:center;width:42px;height:42px;background:var(--accent);color:white;border-radius:13px}.brand small{display:block;font-size:11px;font-weight:400;color:#738393;margin-top:3px}#account{display:flex;align-items:center;gap:8px;font-size:12px}.banner{background:#eaf2ef;color:#315d53;padding:10px 32px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px}#status{padding:0 32px;min-height:26px;line-height:26px;background:#fff;color:#38645b}#status.error{background:#fff0f0;color:#ad3042}.layout{display:grid;grid-template-columns:238px minmax(0,1fr);max-width:1660px;margin:auto}aside{padding:26px 20px;border-right:1px solid var(--line);min-height:80vh}.sidehead,.heading{display:flex;align-items:center;justify-content:space-between}.sidehead h2{font-size:16px}.muted{color:#74808d;font-size:12px;line-height:1.7}.member{display:flex;align-items:center;gap:10px;margin:7px 0;padding:11px 9px;width:100%;text-align:left;border-color:transparent;background:transparent}.member.selected{background:#e7f0ed;border-color:#98b9ae}.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700;flex-shrink:0}.member small{display:block;color:#74808d;font-size:10px;margin-top:4px}.textbtn{border:0;background:transparent;color:var(--accent);font-size:12px}.tip{font-size:11px;line-height:1.9;color:#7b8894;background:#edf1f4;border-radius:10px;padding:14px;margin:24px 0}main{padding:24px 30px 40px;min-width:0}h1{font-size:28px;letter-spacing:-1px;margin:7px 0}h2{font-size:19px;margin:0}p{margin:8px 0}.eyebrow{font-size:10px;letter-spacing:2px;color:#6a8b81;font-weight:700}.tabs{display:flex;gap:8px;margin:22px 0 16px}.tabs button{border:none;background:transparent;color:#6c7886}.tabs [aria-pressed=true]{background:#e3ede8;color:#315d53;font-weight:700}.card{background:white;border:1px solid var(--line);border-radius:14px;box-shadow:0 3px 12px #1f385006}.toolbar{padding:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.monthnav{display:flex;align-items:center;gap:10px}.monthnav h2{min-width:145px;text-align:center}.filter{display:flex;align-items:center;gap:10px;font-size:12px}input,select,textarea{border:1px solid #d5dfe4;border-radius:7px;padding:10px;background:white;color:inherit;max-width:100%}select{min-width:130px}.summary{padding:0 22px 17px;color:#6c7986;font-size:12px}.grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr))}.dow{padding:12px;text-align:center;background:#f8fafb;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;color:#6e7c8a}.day{min-height:141px;padding:6px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}.day:nth-child(7n){border-right:0}.day.out{background:#fafbfc;color:#9da7af}.day.today{background:#f0f7f4}.datebutton{padding:4px 7px;min-height:28px;border:none;background:transparent;font-size:12px}.today .datebutton{border-radius:50%;background:var(--accent);color:white}.sun{color:#b45864}.sat{color:#557ba8}.event{display:block;width:100%;text-align:left;padding:5px 6px;margin:3px 0;border:0;border-left:3px solid var(--person,#799);border-radius:4px;background:#f0f4f6;font-size:10px;line-height:1.5;min-height:0;overflow:hidden}.event strong{font-weight:650}.event small{display:block;font-size:10px;color:#61717e}.event.exception{background:#fcf1df}.more{font-size:10px;padding:3px 6px;border:0;min-height:23px}.legend{padding:17px 22px;display:flex;gap:20px;flex-wrap:wrap;color:#7a8793;font-size:10px}dialog{border:1px solid var(--line);border-radius:16px;padding:24px;width:540px;max-width:94vw;max-height:90dvh;box-shadow:0 20px 100px #10243040}dialog::backdrop{background:#172c4260}.dialoghead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}label{display:block;font-size:12px}form>label{margin:12px 0}form>label input,form>label select,textarea{display:block;width:100%;margin-top:6px}.row{display:flex;gap:12px;align-items:center}.row>*{flex:1}.actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.hint{padding:12px;background:#eff5f2;font-size:12px;line-height:1.7;border-radius:8px}.entry{padding:12px 0;border-bottom:1px solid var(--line)}.entry p{font-size:12px}.entry button{margin-right:6px}.login{max-width:460px;margin:60px auto;padding:32px}.login h1{line-height:1.5}.login button{width:100%;margin-top:12px}.weekscroll{overflow:auto}table{border-collapse:collapse;width:100%;min-width:760px}th,td{padding:16px 10px;border:1px solid var(--line);text-align:left;font-size:12px;vertical-align:top}th{background:#f8fafb;font-weight:500}td button{font-size:11px;padding:4px;display:block;border:0;min-height:26px}#adminTools button{display:block;width:100%;margin:8px 0;font-size:11px}.slotrow{display:flex;gap:5px;align-items:center;margin:8px 0}.slotrow input{width:110px}.slotrow select{min-width:58px;width:62px;padding:8px}.slotrow button{padding:8px}.audit{font-size:10px;color:#7b8793;overflow-wrap:anywhere}#dialogError{color:#ab3444;line-height:1.7;font-size:12px;white-space:pre-wrap}[hidden]{display:none!important}@media(max-width:1000px){.layout{grid-template-columns:190px minmax(0,1fr)}main{padding:20px 14px}.day{padding:3px}.event{font-size:9px}.top{padding:0 18px}}@media(max-width:700px){.top{height:auto;min-height:76px;padding:14px;flex-wrap:wrap}.brand{font-size:18px}#account{flex-wrap:wrap}.banner{padding:10px 14px;flex-wrap:wrap}#status{padding:0 14px}.layout{display:block}aside{min-height:0;border-right:0;border-bottom:1px solid var(--line);padding:10px 14px}.sidehead h2{font-size:13px}aside>.muted,.tip{display:none}#members{display:flex;overflow:auto;gap:6px}.member{min-width:130px;width:auto;padding:8px}.avatar{width:29px;height:29px}#adminTools{display:flex;gap:6px;overflow:auto}#adminTools button{white-space:nowrap;width:auto}main{padding:18px 8px}.heading{padding:0 8px}h1{font-size:24px}.toolbar{padding:12px;gap:14px}.monthnav{gap:5px}.monthnav h2{font-size:18px;min-width:132px}.day{min-height:117px;padding:2px}.event{font-size:9px;padding:3px 2px;border-left-width:2px;word-break:break-all}.event small{font-size:8px;letter-spacing:-.4px}.dow{padding:10px 0}.datebutton{font-size:11px}.legend{gap:10px;padding:14px}.summary{padding:0 12px 12px}.slotrow input{width:92px;padding:8px 3px}dialog{padding:18px}.login{margin:25px 12px}}

@media(max-width:700px){.event{font-size:10px}.event small{font-size:9px}.day{min-height:130px}}
/* v2 반 이름 / 날짜별 수업 기록 */
.slotrow{display:grid;grid-template-columns:62px minmax(0,1fr) 12px minmax(0,1fr) 38px;gap:7px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fafcfc}.slotrow .classField{grid-column:1/-1;display:block}.slotrow .className{display:block;width:100%;margin-top:5px}.slotrow input[type=time]{width:100%;min-width:0}.slotrow select{width:100%;min-width:0}.lessoncard{padding:14px;margin:10px 0;background:#f1f6f3;border:1px solid #dbe7df;border-radius:10px}.lessoncard label,.lesson-check{display:flex;gap:9px;align-items:center}.lessoncard input[type=checkbox],.lesson-check input[type=checkbox]{width:19px;height:19px;accent-color:var(--accent)}.lesson-note{white-space:pre-wrap;overflow-wrap:anywhere}.lesson-check{font-size:15px;margin:20px 0}

/* v3 요일별 편집 / 30분 선택 / 겹침 확인 */
.weekday-cell{width:100%;min-height:100px;text-align:left;background:transparent;padding:8px;border-radius:8px}.weekly-slot{display:block;margin-bottom:10px;line-height:1.7}.cell-action{display:block;color:var(--accent);font-size:11px;margin-top:12px}.day-slotrow{grid-template-columns:minmax(0,1fr) 12px minmax(0,1fr) 38px}.day-slotrow label{min-width:0}.day-slotrow select{display:block;margin-top:5px;width:100%;min-width:0}.overlap-dialog p{font-size:13px;line-height:1.8}.row select{min-width:0;width:100%}

.repeat-section{padding:0 20px 24px}.repeat-member h4{margin:18px 0 10px}.repeat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}.repeat-card{border:1px solid var(--line);border-top:3px solid var(--person);border-radius:10px;padding:16px}.repeat-times{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}.repeat-times span{font-size:12px;background:#eef4f1;border-radius:6px;padding:6px}.repeat-add{border:1px dashed #a7bfb7;min-height:90px;color:var(--accent)}.repeat-card button{font-size:12px}.repeat-section h3{margin-top:0}

.overlap-details{white-space:pre-line;overflow-wrap:anywhere}