:root {
  /* V6.35.3: 휴대폰 브라우저의 강제 다크 모드로 화면이 검게 변하지 않도록 밝은 화면 전용으로 선언 */
  color-scheme: only light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #172033;
  --muted: #667085;
  --line: #e4e7ec;
  --primary: #173f73;
  --primary-2: #245a9b;
  --success: #157347;
  --danger: #b42318;
  --warning: #b54708;
  --shadow: 0 14px 40px rgba(23, 32, 51, 0.08);
  --radius: 18px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Arial, sans-serif; color: var(--text); background: var(--bg); }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.shell { min-height: 100vh; }
.topbar { height: 68px; background: var(--surface); border-bottom: 1px solid var(--line); display:flex; align-items:center; justify-content:space-between; padding: 0 28px; position:sticky; top:0; z-index:20; }
.brand { display:flex; align-items:center; gap:12px; font-weight:800; letter-spacing:-0.03em; }
.brand-mark { width:38px; height:38px; border-radius:12px; background:linear-gradient(145deg,var(--primary),var(--primary-2)); color:white; display:grid; place-items:center; font-weight:900; }
.brand small { display:block; color:var(--muted); font-weight:600; font-size:12px; margin-top:2px; }
.container { width:min(1180px, calc(100% - 32px)); margin: 0 auto; }
.hero { padding: 76px 0 52px; text-align:center; }
.hero .eyebrow { color:var(--primary); font-weight:800; font-size:14px; }
.hero h1 { margin:12px 0 14px; font-size:clamp(32px,5vw,56px); letter-spacing:-0.055em; line-height:1.08; }
.hero p { color:var(--muted); font-size:17px; margin:0 auto; max-width:620px; line-height:1.7; }
.choice-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px; margin: 10px auto 80px; max-width:1180px; }
.choice-card { background:var(--surface); border:1px solid var(--line); border-radius:24px; padding:34px; box-shadow:var(--shadow); transition:.18s ease; }
.choice-card:hover { transform:translateY(-3px); border-color:#cdd5df; }
.choice-card .icon { width:54px; height:54px; border-radius:16px; background:#eef4fb; color:var(--primary); display:grid; place-items:center; font-size:25px; margin-bottom:26px; }
.choice-card h2 { margin:0 0 9px; font-size:25px; letter-spacing:-0.04em; }
.choice-card p { color:var(--muted); line-height:1.65; min-height:54px; }
.choice-card .go { display:inline-flex; align-items:center; gap:8px; color:var(--primary); font-weight:800; margin-top:12px; }
.auth-wrap { min-height:calc(100vh - 68px); display:grid; place-items:center; padding:40px 16px; }
.auth-card { width:min(460px, 100%); background:var(--surface); border:1px solid var(--line); border-radius:24px; padding:32px; box-shadow:var(--shadow); }
.auth-card h1 { font-size:28px; margin:0 0 8px; letter-spacing:-0.04em; }
.auth-card > p { color:var(--muted); margin:0 0 28px; line-height:1.6; }
.field { margin:0 0 16px; }
.field label { display:block; font-weight:700; margin-bottom:8px; font-size:14px; }
.field input, .field select { width:100%; height:48px; padding:0 14px; border:1px solid #d0d5dd; border-radius:12px; background:white; outline:none; }
.field input:focus, .field select:focus { border-color:var(--primary-2); box-shadow:0 0 0 3px rgba(36,90,155,.10); }
.btn { border:0; border-radius:12px; min-height:46px; padding:0 18px; font-weight:800; display:inline-flex; align-items:center; justify-content:center; gap:8px; }
.btn-primary { background:var(--primary); color:white; }
.btn-primary:hover { background:#12345f; }
.btn-secondary { background:#eef2f6; color:#344054; }
.btn-danger { background:#fee4e2; color:var(--danger); }
.btn-block { width:100%; }
.note { font-size:13px; color:var(--muted); line-height:1.55; margin-top:14px; }
.alert { border-radius:12px; padding:12px 14px; margin:14px 0; font-size:14px; line-height:1.5; }
.alert-error { background:#fef3f2; color:var(--danger); border:1px solid #fecdca; }
.alert-success { background:#ecfdf3; color:var(--success); border:1px solid #abefc6; }
.app-layout { display:grid; grid-template-columns:240px 1fr; min-height:calc(100vh - 68px); }
.sidebar { background:#102a4b; color:white; padding:24px 16px; }
.sidebar .side-title { padding:0 12px 16px; color:#c8d7e8; font-size:12px; font-weight:800; text-transform:uppercase; letter-spacing:.06em; }
.nav-btn { width:100%; border:0; background:transparent; color:#dbe7f4; border-radius:10px; padding:12px; text-align:left; font-weight:700; margin:2px 0; }
.nav-btn:hover, .nav-btn.active { background:rgba(255,255,255,.11); color:white; }
.main { padding:30px; min-width:0; }
.page-title { display:flex; justify-content:space-between; align-items:flex-start; gap:20px; margin-bottom:24px; }
.page-title h1 { margin:0 0 7px; font-size:30px; letter-spacing:-0.045em; }
.page-title p { margin:0; color:var(--muted); }
.grid-4 { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px; }
.grid-2 { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.stat, .panel { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); box-shadow:0 4px 20px rgba(23,32,51,.04); }
.stat { padding:20px; }
.stat .label { color:var(--muted); font-size:13px; font-weight:700; }
.stat .value { margin-top:9px; font-size:28px; font-weight:850; letter-spacing:-0.04em; }
.panel { padding:22px; margin-top:16px; }
.panel h2 { font-size:19px; margin:0 0 16px; letter-spacing:-0.03em; }
.profile-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; }
.profile-item { background:var(--surface-2); border:1px solid #eef2f6; padding:14px; border-radius:12px; }
.profile-item .k { color:var(--muted); font-size:12px; margin-bottom:5px; }
.profile-item .v { font-weight:800; }
.table-wrap { width:100%; overflow:auto; }
table { width:100%; border-collapse:collapse; min-width:680px; }
th, td { text-align:left; padding:13px 12px; border-bottom:1px solid #eaecf0; font-size:14px; }
th { color:#475467; background:#f9fafb; font-size:12px; }
.badge { display:inline-flex; align-items:center; min-height:26px; padding:0 10px; border-radius:999px; font-size:12px; font-weight:800; }
.badge-p { background:#ecfdf3; color:#067647; }
.badge-np { background:#fef3f2; color:#b42318; }
.badge-live { background:#eff8ff; color:#175cd3; }
.qr-box { width:280px; min-height:280px; background:white; border:1px solid var(--line); border-radius:18px; display:grid; place-items:center; margin:12px auto; padding:16px; }
.qr-meta { text-align:center; color:var(--muted); font-size:13px; line-height:1.6; }
.inline-form { display:grid; grid-template-columns:2fr 1fr 1fr auto; gap:10px; align-items:end; }
.toolbar { display:flex; flex-wrap:wrap; gap:10px; align-items:center; justify-content:space-between; margin-bottom:14px; }
.toolbar .left, .toolbar .right { display:flex; flex-wrap:wrap; gap:10px; align-items:center; }
.small-input { height:42px; border:1px solid #d0d5dd; border-radius:10px; padding:0 12px; }
.checkin-card { width:min(620px, calc(100% - 32px)); margin:60px auto; background:white; border:1px solid var(--line); border-radius:24px; padding:34px; box-shadow:var(--shadow); text-align:center; }
.checkin-icon { width:72px; height:72px; border-radius:50%; display:grid; place-items:center; margin:0 auto 18px; background:#ecfdf3; color:var(--success); font-size:34px; }
.footer { text-align:center; color:var(--muted); font-size:12px; padding:26px; }
@media (max-width:900px){ .grid-4{grid-template-columns:repeat(2,1fr)} .profile-grid{grid-template-columns:repeat(2,1fr)} .app-layout{grid-template-columns:1fr} .sidebar{display:flex; overflow:auto; padding:10px; position:sticky; top:68px; z-index:10} .sidebar .side-title{display:none} .nav-btn{white-space:nowrap; width:auto} .main{padding:20px 16px} .inline-form{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .topbar{padding:0 16px}.choice-grid{grid-template-columns:1fr}.hero{padding-top:48px}.grid-4,.grid-2,.profile-grid{grid-template-columns:1fr}.auth-card{padding:24px}.page-title{flex-direction:column}.inline-form{grid-template-columns:1fr}.brand .full-name{display:none} }

/* Student built-in QR scanner */
.student-quick-grid { display:grid; grid-template-columns:minmax(0,420px); gap:12px; margin:0 0 16px; }
.quick-card { width:100%; border:1px solid #d8e2ef; background:#f4f8fd; border-radius:16px; padding:16px; display:flex; align-items:center; gap:14px; text-align:left; color:var(--text); }
.quick-card:hover { border-color:#b8cce4; background:#eef5fc; }
.quick-card .quick-icon { flex:0 0 46px; width:46px; height:46px; display:grid; place-items:center; border-radius:13px; background:var(--primary); color:white; font-size:23px; }
.quick-card strong { display:block; font-size:16px; margin-bottom:4px; }
.quick-card small { display:block; color:var(--muted); line-height:1.45; }
.scanner-layout { display:grid; grid-template-columns:minmax(0,620px) minmax(260px,1fr); gap:16px; align-items:start; }
.scanner-panel { position:relative; }
.scanner-box { width:100%; max-width:520px; margin:0 auto; overflow:hidden; border-radius:18px; background:#0d1117; }
.scanner-box video { border-radius:18px; }
.scanner-placeholder { min-height:360px; max-width:520px; margin:0 auto; border:2px dashed #cbd5e1; border-radius:18px; background:#f8fafc; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; gap:8px; padding:24px; color:var(--muted); }
.scanner-placeholder strong { color:var(--text); font-size:18px; }
.scanner-placeholder-icon { width:64px; height:64px; border-radius:18px; background:#e8f0fa; color:var(--primary); display:grid; place-items:center; font-size:30px; margin-bottom:4px; }
.scanner-actions { display:flex; justify-content:center; gap:10px; margin-top:16px; }
.scanner-message { text-align:center; }
.scanner-help { margin-top:16px; }
.scanner-help ol { margin:0; padding-left:21px; color:#475467; line-height:1.75; }
.scanner-help li + li { margin-top:8px; }
#qr-reader__scan_region img { display:none !important; }
#qr-reader__dashboard { padding:10px !important; }
@media (max-width:900px){ .scanner-layout{grid-template-columns:1fr}.scanner-help{margin-top:0} }
@media (max-width:640px){ .scanner-placeholder{min-height:300px}.scanner-actions{flex-direction:column}.scanner-actions .btn{width:100%} }


/* V4 student administration */
.student-admin-grid { align-items:start; }
.form-grid-2 { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0 12px; }
.form-grid-3 { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:0 12px; align-items:end; }
.form-submit { display:flex; align-items:end; padding-bottom:16px; }
.pin-row { display:grid; grid-template-columns:1fr auto; gap:8px; }
.no-margin { margin:0; }
.file-drop { min-height:116px; border:2px dashed #cbd5e1; background:#f8fafc; border-radius:16px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px; text-align:center; cursor:pointer; color:var(--primary); margin-top:14px; padding:18px; }
.file-drop:hover { border-color:#9eb8d8; background:#f1f6fc; }
.file-drop span { color:var(--muted); font-size:12px; }
.visually-hidden { position:absolute !important; width:1px !important; height:1px !important; overflow:hidden !important; clip:rect(0 0 0 0) !important; white-space:nowrap !important; }
.bulk-preview { margin-top:14px; max-height:320px; overflow:auto; }
.bulk-preview table { min-width:640px; }
.bulk-actions { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.bulk-note { margin-top:0; }
.progress-bar { height:10px; background:#e9eef5; border-radius:999px; overflow:hidden; margin-top:10px; }
.progress-bar > span { display:block; height:100%; background:var(--primary); width:0; transition:width .2s ease; }
.status-success { color:var(--success); font-weight:800; }
.status-error { color:var(--danger); font-weight:800; }
.table-action { min-height:34px; padding:0 10px; border-radius:9px; font-size:12px; }
.pin-change-panel { max-width:520px; }
@media (max-width:900px){ .form-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:640px){ .form-grid-2,.form-grid-3{grid-template-columns:1fr}.pin-row{grid-template-columns:1fr}.pin-row .btn{width:100%}.bulk-actions .btn{width:100%} }

/* V5 signup */
.auth-wrap-wide{padding-top:42px;padding-bottom:42px}.auth-card-wide{max-width:560px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:24px;background:#eef2f7;padding:5px;border-radius:12px}.auth-tab{border:0;background:transparent;padding:12px;border-radius:9px;font-weight:700;cursor:pointer}.auth-tab.active{background:#fff;box-shadow:0 1px 5px rgba(0,0,0,.09);color:#06255f}.signup-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:18px 0}.signup-step{font-size:12px;text-align:center;padding:8px 4px;background:#eef2f7;border-radius:8px;color:#697386}.signup-step.active{background:#06255f;color:#fff;font-weight:700}.recaptcha-box{display:flex;justify-content:center;min-height:12px;margin-top:12px}.verified-student-box{margin-bottom:14px}.btn-block+.btn-block{margin-top:8px}@media(max-width:600px){.signup-steps{grid-template-columns:1fr}.signup-step{display:none}.signup-step.active{display:block}}

.table-actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap;}


/* V6.2 attendance period grouping */
.session-form-grid{display:grid;grid-template-columns:1.7fr 1fr 1.15fr 1.15fr .8fr .9fr .9fr 1fr auto auto;gap:10px;align-items:end}
.schedule-preview{margin-top:12px;padding:12px 14px;border:1px solid #d8e2ef;background:#f7faff;border-radius:12px;color:#344054;font-size:14px}
.attendance-filter-grid{display:grid;grid-template-columns:1fr 1fr 1.2fr auto;gap:10px;align-items:end;margin-bottom:14px}
.filter-actions{display:flex;gap:8px;align-items:end;padding-bottom:16px;flex-wrap:wrap}
.history-summary{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:4px 0 14px}
.attendance-history-table{min-width:1100px}
@media(max-width:1200px){.session-form-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.session-form-grid .btn{min-height:44px}.attendance-filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.session-form-grid,.attendance-filter-grid{grid-template-columns:1fr}.filter-actions{padding-bottom:0}.filter-actions .btn{width:100%}}


/* V6.3 recurring class schedule */
.schedule-load-grid{display:grid;grid-template-columns:minmax(220px,1fr) auto;gap:10px;align-items:end;margin-top:12px}
.schedule-bulk-table{min-width:1480px}.schedule-bulk-table input,.schedule-bulk-table select{min-width:110px;width:100%}.schedule-bulk-table .schedule-title-input{min-width:160px}.schedule-bulk-table .schedule-course-input{min-width:130px}.schedule-bulk-table .schedule-professor-input{min-width:140px}.schedule-bulk-table .schedule-remove-btn{white-space:nowrap}
.schedule-template-label{display:flex;flex-direction:column;gap:2px}.schedule-template-label strong{font-size:14px}.schedule-template-label span{font-size:12px;color:var(--muted)}
.today-badge{display:inline-flex;margin-left:6px}
@media(max-width:700px){.schedule-load-grid{grid-template-columns:1fr}.schedule-load-grid .btn{width:100%}}

/* V6.4 course date range */
.schedule-bulk-table .schedule-course-start-input,.schedule-bulk-table .schedule-course-end-input{min-width:145px}


/* V6.6 professor portal */
.professor-control-grid{display:grid;grid-template-columns:minmax(220px,1.5fr) minmax(150px,.8fr) minmax(180px,1fr) auto;gap:10px;align-items:end;margin-bottom:14px}
.professor-entry-table{min-width:900px}.professor-grade-table{min-width:1050px}
.professor-entry-table select,.professor-entry-table input,.professor-grade-table select,.professor-grade-table input{height:40px;border:1px solid #d0d5dd;border-radius:9px;padding:0 10px;background:#fff}
.professor-grade-table .grade-score{width:90px}.professor-grade-table .grade-note,.professor-entry-table .manual-note{min-width:180px}
.professor-admin-grid{align-items:start}.professor-list-table{min-width:850px}.schedule-professor-select{min-width:180px}
.grade-admin-table{min-width:1050px}
@media(max-width:1000px){.choice-grid{grid-template-columns:1fr 1fr}.professor-control-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.choice-grid,.professor-control-grid{grid-template-columns:1fr}.professor-control-grid .filter-actions{padding-bottom:0}.professor-control-grid .btn{width:100%}}

/* V6.7 dual grading modes */
.professor-grade-table .grade-letter,.professor-grade-table .grade-result{min-width:90px}.grade-admin-table{min-width:1250px}

/* V6.8 professor ID class linkage */
.professor-id-edit,.schedule-professor-id-edit,.schedule-professor-id-input{min-width:120px}
.schedule-professor-name-edit,.schedule-professor-name-input{min-width:130px}
.input-error{border-color:#d92d20!important;background:#fff6f5!important}
@media(max-width:700px){.professor-id-edit,.schedule-professor-id-edit,.schedule-professor-id-input,.schedule-professor-name-edit,.schedule-professor-name-input{min-width:150px}}

/* V6.13 교수 위치기준 출결 */
.compact-title{margin-bottom:12px;align-items:flex-start}
.live-attendance-panel{margin-top:18px}
.live-attendance-list{display:grid;gap:12px}
.live-attendance-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--border,#e5e7eb)}
.live-attendance-item:last-child{border-bottom:0}
.live-attendance-meta{min-width:0;display:grid;gap:4px}
.live-attendance-meta strong{font-size:17px}
.live-attendance-meta small{color:#667085;line-height:1.45}
.professor-live-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
@media(max-width:700px){.live-attendance-item{align-items:stretch;flex-direction:column}.live-attendance-item .btn{width:100%}.professor-live-actions{min-width:150px}}

/* V6.16 학생 조회 */
.student-search-toolbar .left{align-items:center}
.student-search-toolbar #studentGradeFilter{min-width:130px}
.student-search-toolbar #studentIdSearch{min-width:180px}
.student-search-toolbar #studentNameSearch{min-width:160px}
@media(max-width:700px){
  .student-search-toolbar .left,.student-search-toolbar .right{width:100%}
  .student-search-toolbar .small-input,.student-search-toolbar .btn{width:100%}
}


/* V6.24 brand logo overrides */
.brand-mark.brand-logo-wrap{
  width:56px;
  height:56px;
  border-radius:50%;
  background:transparent;
  overflow:hidden;
  flex:0 0 56px;
  padding:0;
  box-shadow:0 0 0 1px rgba(17,24,39,0.08);
}
.brand-logo{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
}
.brand-subtitle-en{
  display:block;
  color:var(--muted);
  font-weight:700;
  font-size:12px;
  margin-top:2px;
  letter-spacing:-0.01em;
  line-height:1.25;
}
@media (max-width:640px){
  .brand-mark.brand-logo-wrap{
    width:46px;
    height:46px;
    flex-basis:46px;
  }
}

/* V6.25 student academic lookup */
.student-lookup-search{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:end}
.lookup-result-list{display:grid;gap:8px;margin-top:14px}
.lookup-result-btn{width:100%;border:1px solid var(--line);background:var(--surface-2);border-radius:14px;padding:14px 16px;text-align:left;color:var(--text)}
.lookup-result-btn:hover{border-color:#aabbd0;background:#f0f5fb}
.lookup-result-btn strong{display:block;font-size:16px;margin-bottom:4px}
.lookup-result-btn span{display:block;color:var(--muted);font-size:13px;line-height:1.45}
.lookup-term-group{margin-bottom:18px}
.lookup-term-group:last-child{margin-bottom:0}
@media(max-width:640px){.student-lookup-search{grid-template-columns:1fr}.student-lookup-search .btn{width:100%}}


/* V6.27 attendance by class/week + professor side detail drawer */
.attendance-course-filters{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.attendance-weekly-matrix{min-width:max-content}
.attendance-weekly-matrix th,.attendance-weekly-matrix td{text-align:center;white-space:nowrap}
.attendance-weekly-matrix th:first-child,.attendance-weekly-matrix th:nth-child(2),
.attendance-weekly-matrix td:first-child,.attendance-weekly-matrix td:nth-child(2){text-align:left;position:sticky;background:var(--surface);z-index:1}
.attendance-weekly-matrix th:first-child,.attendance-weekly-matrix td:first-child{left:0}
.attendance-weekly-matrix th:nth-child(2),.attendance-weekly-matrix td:nth-child(2){left:95px}
.attendance-cell-empty{color:var(--muted)}
.compact-attendance-entry{max-width:760px}
.compact-attendance-entry th,.compact-attendance-entry td{vertical-align:middle}
.compact-attendance-entry .manual-status{min-width:120px}
.attendance-detail-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.36);z-index:980}
.attendance-detail-backdrop.hidden{display:none}
.attendance-detail-drawer{position:fixed;top:0;right:0;width:min(440px,92vw);height:100dvh;background:var(--surface);z-index:990;box-shadow:-18px 0 45px rgba(15,23,42,.18);transform:translateX(105%);transition:transform .22s ease;padding:22px;overflow:auto}
.attendance-detail-drawer.open{transform:translateX(0)}
.attendance-detail-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:18px}
.attendance-detail-content{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.attendance-detail-content .profile-item{min-width:0}
.attendance-detail-note{margin-top:18px}
.attendance-detail-note textarea{width:100%;resize:vertical}
@media(max-width:640px){
  .attendance-detail-drawer{width:94vw;padding:16px}
  .attendance-detail-content{grid-template-columns:1fr}
  .compact-attendance-entry{min-width:520px}
}


/* V6.27.1 explicit professor GPS attendance control */
.gps-attendance-panel{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px;margin-bottom:14px;border:1px solid var(--line);
  border-radius:16px;background:var(--surface);
}
.gps-attendance-info{min-width:0;flex:1}
.gps-attendance-toggle{min-width:170px;min-height:46px;font-weight:700}
@media(max-width:700px){
  .gps-attendance-panel{align-items:stretch;flex-direction:column}
  .gps-attendance-toggle{width:100%;min-width:0}
}


/* V6.27.2 professor detail drawer UI polish */
body.drawer-open{overflow:hidden}
.attendance-detail-drawer.hidden{display:none}
.attendance-detail-backdrop{backdrop-filter:blur(2px)}
.attendance-detail-drawer{
  display:flex;flex-direction:column;gap:0;
  top:0;right:0;bottom:0;left:auto;
  width:min(460px,92vw);max-width:92vw;height:100dvh;
  padding:0;overflow:hidden;border-left:1px solid var(--line);
}
.attendance-detail-header{
  position:sticky;top:0;z-index:2;background:var(--surface);
  padding:22px 22px 16px 22px;margin:0;border-bottom:1px solid var(--line);
}
.attendance-detail-content{
  padding:18px 22px 0 22px;overflow:auto;
  display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start;
}
.attendance-detail-content .profile-item{
  background:#f8fafc;border:1px solid #e5eaf2;border-radius:14px;padding:14px 16px;
  box-shadow:0 1px 2px rgba(15,23,42,.04);
}
.attendance-detail-content .profile-item .k{
  font-size:12px;font-weight:700;letter-spacing:-0.01em;color:#64748b;margin-bottom:7px;
}
.attendance-detail-content .profile-item .v{
  font-size:15px;line-height:1.45;font-weight:800;color:#0f172a;word-break:break-word;
}
.attendance-detail-note{
  margin:18px 22px 22px 22px;padding-top:18px;border-top:1px solid var(--line);
}
.attendance-detail-note label{font-weight:800;margin-bottom:8px;display:block}
.attendance-detail-note textarea{
  width:100%;min-height:120px;border:1px solid #d8e0ea;border-radius:12px;
  padding:12px 14px;background:#fff;resize:vertical;
}
@media (max-width: 840px){
  .attendance-detail-drawer{width:min(100vw,560px);max-width:100vw}
}
@media (max-width: 640px){
  .attendance-detail-drawer{width:100vw;max-width:100vw}
  .attendance-detail-header{padding:18px 16px 14px 16px}
  .attendance-detail-content{grid-template-columns:1fr;padding:14px 16px 0 16px}
  .attendance-detail-note{margin:16px;padding-top:14px}
}


/* V6.27.3 compact professor attendance table spacing */
#professorAttendanceTable{display:block}
#professorAttendanceTable .compact-attendance-entry{
  width:auto;
  min-width:640px;
  max-width:780px;
  table-layout:fixed;
}
#professorAttendanceTable .compact-attendance-entry th,
#professorAttendanceTable .compact-attendance-entry td{
  padding:12px 10px;
  white-space:nowrap;
}
#professorAttendanceTable .compact-attendance-entry th:nth-child(1),
#professorAttendanceTable .compact-attendance-entry td:nth-child(1){width:170px}
#professorAttendanceTable .compact-attendance-entry th:nth-child(2),
#professorAttendanceTable .compact-attendance-entry td:nth-child(2){width:120px}
#professorAttendanceTable .compact-attendance-entry th:nth-child(3),
#professorAttendanceTable .compact-attendance-entry td:nth-child(3){width:170px}
#professorAttendanceTable .compact-attendance-entry th:nth-child(4),
#professorAttendanceTable .compact-attendance-entry td:nth-child(4){width:110px}
#professorAttendanceTable .compact-attendance-entry .manual-status{width:100%;min-width:0}
#professorAttendanceTable .compact-attendance-entry .attendance-detail-btn{padding-left:12px;padding-right:12px}
@media (max-width:640px){
  #professorAttendanceTable .compact-attendance-entry{min-width:620px}
}


/* V6.28 automatic academic-schedule attendance workspace */
.attendance-auto-context{padding:20px 22px}
.attendance-current-class{display:flex;align-items:center;justify-content:space-between;gap:18px}
.attendance-current-class h2{margin:7px 0 5px;font-size:24px;letter-spacing:-.03em}
.attendance-eyebrow{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.attendance-current-week-card{min-width:150px;padding:14px 16px;border-radius:14px;background:#f8fafc;border:1px solid #e6ebf1;display:flex;flex-direction:column;gap:3px;text-align:right}
.attendance-current-week-card .k{font-size:11px;color:#667085;font-weight:700}
.attendance-current-week-card strong{font-size:20px;color:#0f172a}
.attendance-week-panel{overflow:hidden}
.attendance-week-bar{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 12px;scrollbar-width:thin;scroll-snap-type:x proximity}
.attendance-week-tab{flex:0 0 auto;min-width:88px;border:1px solid #dfe5ec;background:#fff;border-radius:13px;padding:10px 12px;display:flex;flex-direction:column;align-items:flex-start;gap:2px;cursor:pointer;scroll-snap-align:center;color:#344054;transition:border-color .15s ease,background .15s ease,transform .15s ease}
.attendance-week-tab .week-number{font-size:13px;font-weight:850;color:#101828}
.attendance-week-tab .week-date{font-size:11px;color:#667085}
.attendance-week-tab .week-state{font-size:11px;font-weight:750;color:#667085}
.attendance-week-tab.current{box-shadow:inset 0 0 0 1px #b7d4ff}
.attendance-week-tab.active{border-color:#175cd3;background:#eff8ff}
.attendance-week-tab.active .week-number,.attendance-week-tab.active .week-state{color:#175cd3}
.attendance-week-tab.week-done .week-state{color:#067647}
.attendance-week-tab.week-missing .week-state{color:#b42318}
.attendance-week-tab.week-live{border-color:#84adff;background:#eff8ff}
.attendance-week-summary{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:12px;border-top:1px solid #eef1f4}
.attendance-week-summary-main{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.attendance-week-counts{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:#667085}
.attendance-week-counts strong{color:#101828}
.attendance-entry-toolbar{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;flex-wrap:wrap;margin:4px 0 14px}
.attendance-search-field{min-width:220px;max-width:320px;flex:1}
.attendance-entry-toolbar .filter-actions{padding-bottom:0;margin:0}
@media(max-width:720px){
  .attendance-current-class{align-items:stretch;flex-direction:column}
  .attendance-current-week-card{min-width:0;text-align:left}
  .attendance-week-tab{min-width:82px;padding:9px 10px}
  .attendance-entry-toolbar{align-items:stretch;flex-direction:column}
  .attendance-search-field{max-width:none;width:100%}
}


/* V6.28.1 professor mobile attendance flow */
.attendance-student-panel{position:relative}
.attendance-student-header{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-bottom:14px
}
.attendance-student-header .attendance-search-field{margin:0}
.attendance-entry-note{margin-top:12px}

.attendance-gps-after-list{
  margin-top:22px;
  margin-bottom:14px;
}

.bulk-attendance-details{
  margin-top:14px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#f8fafc;
  overflow:hidden;
}
.bulk-attendance-details summary{
  min-height:50px;
  padding:13px 15px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  cursor:pointer;
  list-style:none;
  user-select:none;
}
.bulk-attendance-details summary::-webkit-details-marker{display:none}
.bulk-attendance-details summary span:first-child{
  display:flex;flex-direction:column;gap:2px
}
.bulk-attendance-details summary strong{font-size:14px;color:#101828}
.bulk-attendance-details summary small{font-size:11px;color:#667085}
.bulk-attendance-chevron{
  font-size:18px;
  line-height:1;
  transition:transform .16s ease
}
.bulk-attendance-details[open] .bulk-attendance-chevron{transform:rotate(180deg)}
.bulk-attendance-actions{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  padding:0 15px 15px;
}
.bulk-attendance-actions .btn{min-height:40px}

.attendance-save-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:14px;
  padding:14px 16px;
  border:1px solid #d9e5f5;
  border-radius:15px;
  background:#fff;
}
.attendance-save-text{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.attendance-save-text strong{font-size:14px;color:#101828}
.attendance-save-text span{font-size:12px;color:#667085}
.attendance-save-btn{min-width:130px;font-weight:800}

@media(max-width:720px){
  /* Mobile order: 주차 -> 학생 출결 -> 하단 저장 */
  .attendance-auto-context{
    padding:14px 16px;
  }
  .attendance-current-class{
    gap:10px;
  }
  .attendance-current-class h2{
    font-size:20px;
    margin-top:5px;
  }
  .attendance-current-week-card{
    display:none;
  }

  .attendance-week-panel{
    padding:16px 14px;
  }
  .attendance-week-panel .toolbar{
    margin-bottom:10px;
  }
  .attendance-week-panel .toolbar .note{
    font-size:11px;
  }
  .attendance-week-bar{
    margin-left:-2px;
    margin-right:-2px;
  }

  .attendance-student-panel{
    padding:16px 12px 10px;
  }
  .attendance-student-header{
    display:block;
    margin-bottom:12px;
  }
  .attendance-student-header h2{
    font-size:19px;
  }
  .attendance-student-header .note{
    margin-top:4px;
    font-size:11px;
  }
  .attendance-student-header .attendance-search-field{
    margin-top:12px;
    width:100%;
    max-width:none;
  }

  #professorAttendanceTable{
    margin-top:6px;
  }

  .attendance-gps-after-list{
    margin-top:18px;
    padding:14px;
  }
  .attendance-gps-after-list .toolbar{
    margin-bottom:6px;
  }

  /* 전체 출결 버튼은 맨 아래 접힌 메뉴 안에 숨김 */
  .bulk-attendance-details{
    margin-top:12px;
  }
  .bulk-attendance-actions{
    display:grid;
    grid-template-columns:1fr 1fr;
  }
  .bulk-attendance-actions .btn{
    width:100%;
  }

  /* 저장은 모바일 마지막 고정 바 */
  .attendance-save-bar{
    position:sticky;
    bottom:8px;
    z-index:40;
    margin:12px -2px 0;
    padding:10px 10px;
    border-radius:14px;
    box-shadow:0 8px 24px rgba(15,23,42,.14);
  }
  .attendance-save-text{
    display:none;
  }
  .attendance-save-btn{
    width:100%;
    min-height:46px;
    min-width:0;
    font-size:15px;
  }
}


/* V6.28.2 exact professor attendance mobile order:
   현재 수업 -> 주차 -> GPS -> 학생검색 -> 학생출결 -> 저장 -> 전체 일괄출결 */
.gps-attendance-main-panel{
  padding:18px;
}
.gps-attendance-main-panel .gps-attendance-panel{
  margin:0;
  border:0;
  padding:0;
  background:transparent;
}
.attendance-search-panel{
  padding:16px 18px;
}
.attendance-search-only{
  width:min(420px,100%);
  max-width:none;
  min-width:0;
  margin:0;
}
.attendance-search-only input{
  width:100%;
}
.attendance-student-panel .attendance-student-header{
  margin-bottom:12px;
}
.attendance-save-bar{
  margin-top:16px;
}
.bulk-attendance-details{
  margin-top:12px;
}

@media(max-width:720px){
  .gps-attendance-main-panel{
    padding:14px 12px;
  }
  .gps-attendance-main-panel .gps-attendance-panel{
    padding:0;
    margin:0;
  }

  .attendance-search-panel{
    padding:12px;
  }
  .attendance-search-only label{
    margin-bottom:6px;
  }
  .attendance-search-only input{
    min-height:44px;
    font-size:16px;
  }

  .attendance-student-panel{
    padding:14px 12px 10px;
  }

  /* 저장 바는 학생 명단 다음에 바로, 전체 일괄 출결보다 위 */
  .attendance-save-bar{
    position:sticky;
    bottom:8px;
    z-index:40;
    margin:12px -2px 0;
    padding:10px;
    border-radius:14px;
    box-shadow:0 8px 24px rgba(15,23,42,.14);
  }

  /* 전체 학생 일괄 출결은 가장 아래 접힘 영역 */
  .bulk-attendance-details{
    margin-top:14px;
    margin-bottom:0;
  }
}


/* V6.29 two-lane attendance board */
.attendance-board-wrap{width:100%;overflow:visible}
.attendance-board{
  display:grid;
  grid-template-columns:minmax(0,1fr) 34px minmax(0,1fr);
  gap:8px;
  align-items:start;
}
.attendance-board-arrow{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:74px;
  font-size:22px;
  font-weight:900;
  color:#98a2b3;
}
.attendance-lane{
  min-width:0;
  border:1px solid #e4e7ec;
  border-radius:16px;
  overflow:hidden;
  background:#fff;
}
.attendance-absent-lane{background:#fffafa;border-color:#f1d8d6}
.attendance-checked-lane{background:#f9fcff;border-color:#dbe8f7}
.attendance-lane-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:12px 13px;
  border-bottom:1px solid #e4e7ec;
}
.attendance-lane-header>div{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.attendance-lane-header strong{font-size:15px;color:#101828}
.attendance-lane-header span:not(.attendance-lane-count){font-size:10px;color:#667085}
.attendance-lane-count{
  min-width:27px;height:27px;padding:0 8px;
  border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#f2f4f7;color:#344054;font-size:12px;font-weight:850;
}
.attendance-lane-list{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:9px;
}
.attendance-lane-empty{
  margin:0;
  padding:16px 8px;
  color:#98a2b3;
  font-size:12px;
  text-align:center;
}
.attendance-student-card{
  min-width:0;
  border:1px solid #e4e7ec;
  border-radius:13px;
  padding:10px;
  background:#fff;
}
.attendance-card-absent{border-color:#efdad8}
.attendance-card-checked{border-color:#dce7f5}
.attendance-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:7px;
}
.attendance-student-name{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.attendance-student-name strong{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  font-size:14px;
  color:#101828;
}
.attendance-student-name span{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  font-size:10px;
  color:#98a2b3;
}
.attendance-move-btn{
  flex:0 0 auto;
  min-height:34px;
  padding:0 11px;
  border-radius:9px;
  font-size:12px;
}
.attendance-card-actions{
  display:flex;
  align-items:center;
  gap:5px;
  flex-wrap:wrap;
  margin-top:8px;
}
.attendance-mini-action{
  border:0;
  background:#f2f4f7;
  color:#475467;
  border-radius:8px;
  min-height:28px;
  padding:0 8px;
  font-size:10px;
  font-weight:800;
  cursor:pointer;
}
.attendance-mini-action.attendance-late-btn{
  background:#fff7e6;
  color:#b54708;
}
.attendance-mini-action.attendance-return-absent-btn{
  background:#fef3f2;
  color:#b42318;
}
.attendance-status-pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:28px;
  padding:0 9px;
  border-radius:999px;
  font-size:11px;
  font-weight:850;
}
.attendance-status-present{background:#ecfdf3;color:#067647}
.attendance-status-late{background:#fff7e6;color:#b54708}
.attendance-status-excused{background:#eff8ff;color:#175cd3}
.attendance-status-absent{background:#fef3f2;color:#b42318}
.attendance-detail-status{
  margin:18px 22px 0 22px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.attendance-detail-status>label{
  display:block;
  margin-bottom:9px;
  font-size:13px;
  font-weight:850;
}
.attendance-detail-status-actions{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:8px;
}
.status-late-btn{background:#fff7e6!important;color:#b54708!important;border-color:#fedf89!important}

@media(max-width:720px){
  .attendance-board{
    grid-template-columns:minmax(0,1fr) 20px minmax(0,1fr);
    gap:5px;
  }
  .attendance-board-arrow{
    font-size:17px;
    min-height:62px;
  }
  .attendance-lane{
    border-radius:13px;
  }
  .attendance-lane-header{
    padding:9px 8px;
  }
  .attendance-lane-header strong{font-size:13px}
  .attendance-lane-header span:not(.attendance-lane-count){font-size:9px}
  .attendance-lane-count{
    min-width:23px;height:23px;padding:0 6px;font-size:10px
  }
  .attendance-lane-list{
    gap:6px;
    padding:6px;
  }
  .attendance-student-card{
    padding:8px 7px;
    border-radius:11px;
  }
  .attendance-student-name strong{font-size:13px}
  .attendance-student-name span{font-size:9px}
  .attendance-move-btn{
    min-height:32px;
    padding:0 8px;
    font-size:11px;
  }
  .attendance-card-actions{
    gap:4px;
    margin-top:6px;
  }
  .attendance-mini-action{
    min-height:26px;
    padding:0 6px;
    font-size:9px;
  }
  .attendance-status-pill{
    min-height:25px;
    padding:0 7px;
    font-size:10px;
  }
  .attendance-detail-status{margin:16px 16px 0 16px}
}


/* V6.29.1 attendance 7-day professor edit window */
.attendance-week-tab.week-locked{
  background:#f9fafb;
  border-color:#d0d5dd;
  opacity:.78;
}
.attendance-week-tab.week-locked .week-state{
  color:#667085;
}
.attendance-edit-window-notice{
  margin-top:10px;
}
.attendance-edit-window{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 12px;
  border-radius:11px;
  font-size:12px;
}
.attendance-edit-window strong{font-size:12px}
.attendance-edit-window span{color:#667085;text-align:right}
.attendance-edit-open{
  background:#ecfdf3;
  border:1px solid #abefc6;
  color:#067647;
}
.attendance-edit-locked{
  background:#f2f4f7;
  border:1px solid #d0d5dd;
  color:#475467;
}
.attendance-edit-future{
  background:#fffaeb;
  border:1px solid #fedf89;
  color:#b54708;
}
.attendance-card-readonly{
  background:#f9fafb;
}
.attendance-card-readonly .attendance-mini-action{
  background:#eef2f6;
}
.attendance-detail-status-btn:disabled,
.bulk-attendance-actions .btn:disabled,
.attendance-save-btn:disabled{
  opacity:.48;
  cursor:not-allowed;
}
@media(max-width:720px){
  .attendance-edit-window{
    align-items:flex-start;
    flex-direction:column;
    gap:3px;
  }
  .attendance-edit-window span{text-align:left}
}


/* V6.29.2 admin student checkbox selection / selected delete */
.student-selection-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin:0 0 12px;
  padding:11px 12px;
  border:1px solid #e4e7ec;
  border-radius:12px;
  background:#f9fafb;
}
.student-selection-status,
.student-selection-actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.student-management-table .student-check-col{
  width:46px;
  min-width:46px;
  text-align:center;
  position:sticky;
  left:0;
  z-index:2;
  background:#fff;
}
.student-management-table thead .student-check-col{
  background:#f9fafb;
  z-index:3;
}
.student-row-checkbox{
  width:18px;
  height:18px;
  cursor:pointer;
  accent-color:#175cd3;
}
.student-management-table tr.student-row-selected td{
  background:#f5faff;
}
.student-management-table tr.student-row-selected .student-check-col{
  background:#f5faff;
}
@media(max-width:700px){
  .student-selection-bar{
    align-items:stretch;
    flex-direction:column;
  }
  .student-selection-actions{
    display:grid;
    grid-template-columns:1fr 1fr;
  }
  .student-selection-actions .btn{
    width:100%;
  }
  .student-selection-actions .btn-danger{
    grid-column:1 / -1;
  }
}


/* V6.29.4 collapsible week bar + larger professor attendance buttons */
.attendance-week-toggle{
  width:100%;min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 14px;border:1px solid #dfe4ea;border-radius:14px;background:#fff;color:#101828;text-align:left;cursor:pointer;
}
.attendance-week-toggle:hover{background:#f9fafb}
.attendance-week-toggle.open{border-color:#cbd5e1;background:#f9fafb}
.attendance-week-toggle-text{min-width:0;display:flex;flex-direction:column;gap:3px}
.attendance-week-toggle-text strong{font-size:15px;font-weight:850}
.attendance-week-toggle-text .note{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.attendance-week-toggle-chevron{flex:0 0 auto;font-size:21px;font-weight:850;color:#667085}
.attendance-week-collapsible{margin-top:8px;padding:10px 8px 0;border:1px solid #e4e7ec;border-radius:13px;background:#f9fafb}
.attendance-week-collapsible.hidden{display:none}
.attendance-week-panel .attendance-week-summary{margin-top:12px}

.attendance-move-btn{min-height:42px!important;padding:0 16px!important;font-size:13px!important;font-weight:850!important}
.attendance-mini-action{min-height:36px!important;padding:0 11px!important;font-size:11px!important;font-weight:850!important}
.attendance-save-btn{min-height:50px!important;font-size:16px!important}
.gps-attendance-toggle{min-height:50px!important;font-size:14px!important}
.bulk-attendance-actions .btn{min-height:44px!important;padding-left:14px!important;padding-right:14px!important}
.attendance-detail-status-actions .btn{min-height:44px;font-size:13px}

@media(max-width:720px){
  .attendance-week-toggle{min-height:56px;padding:11px 12px}
  .attendance-week-toggle-text strong{font-size:15px}
  .attendance-week-toggle-text .note{font-size:11px}
  .attendance-week-collapsible{padding:8px 6px 0}
  .attendance-move-btn{min-height:44px!important;padding:0 14px!important;font-size:13px!important}
  .attendance-mini-action{min-height:38px!important;padding:0 10px!important;font-size:11px!important}
  .attendance-save-btn{min-height:52px!important;font-size:16px!important}
}

/* V6.30 simple e-Class / Google Drive assignments */
.classroom-course-header{display:grid;grid-template-columns:minmax(260px,1fr) minmax(280px,1.4fr);gap:14px;align-items:end}
.classroom-course-header #classroomDriveStatus{grid-column:1/-1;margin:0}
.classroom-tabs{display:flex;gap:8px;margin:14px 0}
.classroom-tab,.student-classroom-tab{border:1px solid var(--line);background:#fff;color:#475467;border-radius:11px;min-height:44px;padding:0 22px;font-weight:800;cursor:pointer}
.classroom-tab.active,.student-classroom-tab.active{background:#06255f;color:#fff;border-color:#06255f}
.classroom-editor-grid{align-items:start}
.inline-check{display:flex;align-items:center;gap:8px;margin:10px 0 16px;font-size:13px;font-weight:700;color:#344054}
.inline-check input{width:18px;height:18px}
.classroom-item{border:1px solid #e4e7ec;border-radius:14px;padding:15px;margin-bottom:10px;background:#fff}
.classroom-item.pinned{border-color:#bfd5f3;background:#f8fbff}
.classroom-item-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.classroom-item-head>div{min-width:0;display:flex;flex-direction:column;gap:4px}
.classroom-item-head strong{font-size:15px;color:#101828;word-break:break-word}
.classroom-item-head span{font-size:11px;color:#667085}
.classroom-item-body{margin-top:12px;font-size:14px;line-height:1.65;color:#344054;word-break:break-word}
.classroom-item-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.assignment-attachment{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:13px;padding:10px 12px;border-radius:10px;background:#f9fafb;border:1px solid #e4e7ec;font-size:12px;color:#344054}
.assignment-submission-table{min-width:1100px}
.assignment-submission-table input{height:38px;border:1px solid #d0d5dd;border-radius:9px;padding:0 9px;background:#fff}
.assignment-submission-table .assignment-score{width:90px}
.assignment-submission-table .assignment-feedback{min-width:190px;width:100%}
.course-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.course-card{appearance:none;border:1px solid #e4e7ec;border-radius:16px;background:#fff;text-align:left;padding:18px;display:flex;flex-direction:column;gap:7px;cursor:pointer;color:#101828;min-width:0}
.course-card:hover{border-color:#b7cce8;background:#fbfdff}
.course-card.current-term{border-color:#bfd5f3}
.course-card-term{font-size:11px;font-weight:800;color:#175cd3}
.course-card strong{font-size:18px;letter-spacing:-.02em}
.course-card>span:not(.course-card-term):not(.course-card-stats){font-size:13px;color:#475467}
.course-card small{font-size:11px;color:#667085;white-space:normal;line-height:1.45}
.course-card-stats{display:flex;gap:7px;flex-wrap:wrap;margin-top:5px}
.course-card-stats em{font-style:normal;font-size:11px;font-weight:800;padding:5px 8px;border-radius:999px;background:#f2f4f7;color:#475467}
.classroom-course-title{display:flex;align-items:center;gap:18px}
.student-assignment-card{border:1px solid #e4e7ec;border-radius:16px;padding:16px;margin-bottom:12px;background:#fff}
.student-assignment-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.student-assignment-head>div{display:flex;flex-direction:column;gap:4px;min-width:0}
.student-assignment-head strong{font-size:16px;color:#101828}
.student-assignment-head span{font-size:11px;color:#667085}
.student-assignment-description{margin:13px 0;font-size:14px;line-height:1.65;color:#344054}
.submission-current,.assignment-feedback-box{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px;padding:10px 12px;border-radius:10px;background:#f8fafc;border:1px solid #e4e7ec}
.submission-current>div,.assignment-feedback-box{font-size:12px}
.submission-current>div{display:flex;flex-direction:column;gap:2px}
.submission-current span,.assignment-feedback-box span{color:#667085}
.assignment-feedback-box{justify-content:flex-start;background:#f0f9ff;border-color:#cfe8ff}
.student-submit-box{margin-top:14px;padding:14px;border-radius:12px;background:#fafafa;border:1px solid #e4e7ec}
.student-submit-box.disabled{opacity:.72}
.student-submit-box .submit-assignment-btn{min-height:44px;min-width:140px}
.student-submit-box .note{margin:8px 0 0}
.setup-steps{margin:8px 0 18px;padding-left:22px;color:#344054;line-height:1.7;font-size:13px}
.setup-steps li+li{margin-top:6px}

@media(max-width:900px){
  .classroom-course-header{grid-template-columns:1fr}
  .classroom-course-header #classroomDriveStatus{grid-column:auto}
  .course-card-grid{grid-template-columns:1fr}
  .classroom-editor-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .classroom-tabs{position:sticky;top:0;z-index:20;background:#fff;padding:6px 0;margin:8px 0 12px}
  .classroom-tab,.student-classroom-tab{flex:1;padding:0 12px}
  .classroom-item{padding:13px}
  .classroom-item-head,.student-assignment-head{gap:8px}
  .classroom-item-head .btn{flex:0 0 auto}
  .classroom-course-title{align-items:flex-start;flex-direction:column;gap:10px}
  .student-assignment-card{padding:13px}
  .submission-current{align-items:flex-start;flex-direction:column}
  .assignment-attachment{align-items:flex-start;flex-direction:column}
  .assignment-attachment .btn,.submission-current .btn{width:100%}
  .student-submit-box .submit-assignment-btn{width:100%;min-height:48px}
}


/* V6.31 free-form Excel student import */
.bulk-detection-info{margin:14px 0 10px}
.bulk-column-mapping{margin:10px 0 16px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#f8fafc}
.bulk-map-title{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.bulk-map-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.bulk-map-item{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:7px;padding:8px;border:1px solid #e4e7ec;border-radius:10px;background:#fff}
.bulk-map-source{font-size:12px;font-weight:750;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#344054}
.bulk-map-arrow{color:#98a2b3;font-size:12px}
.bulk-map-select{width:100%;min-width:0;height:36px;border:1px solid #d0d5dd;border-radius:8px;background:#fff;padding:0 8px;font-size:12px}
@media(max-width:1000px){.bulk-map-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.bulk-map-grid{grid-template-columns:1fr}.bulk-column-mapping{padding:10px}.bulk-map-item{grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr)}}


/* ==========================================================
   V6.32 e-Class visual system
   ========================================================== */
.eclass-page-title{margin-bottom:18px}
.eclass-eyebrow{font-size:11px;font-weight:900;letter-spacing:.12em;color:#35679f;margin-bottom:7px}
.eclass-course-shell{border-radius:24px;overflow:hidden;border:1px solid #dce5ef;background:#fff;box-shadow:0 14px 36px rgba(17,45,78,.07)}
.eclass-course-selector{padding:18px 20px 0;background:linear-gradient(180deg,#f9fbfe 0,#fff 100%)}
.eclass-course-selector select{background:#fff}
.eclass-course-hero{margin-top:14px;padding:26px 28px;display:flex;align-items:stretch;justify-content:space-between;gap:26px;background:linear-gradient(135deg,#0d2e55 0%,#174d82 62%,#2d6ca3 100%);color:#fff}
.eclass-course-hero-copy{min-width:0;flex:1}
.eclass-course-hero h2{font-size:28px;margin:10px 0 8px;letter-spacing:-.045em}
.eclass-course-hero p{margin:0;color:#d7e6f5;line-height:1.55;font-size:13px}
.eclass-term-chip{display:inline-flex;align-items:center;min-height:26px;padding:0 10px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.18);font-size:11px;font-weight:900;color:#fff}
.eclass-drive-status{margin-top:14px;color:#dbeafa;font-size:12px}
.eclass-drive-status .badge{background:#fff;color:#124c7d}
.eclass-mini-stats{display:grid;grid-template-columns:repeat(2,minmax(94px,1fr));gap:9px;min-width:250px}
.eclass-mini-stats>div{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.10);border-radius:15px;padding:12px 14px;display:flex;flex-direction:column;gap:3px}
.eclass-mini-stats span{font-size:11px;color:#dce9f6}
.eclass-mini-stats strong{font-size:22px;color:#fff}
.eclass-tabs{padding:7px;background:#eaf0f6;border-radius:15px;gap:5px;margin:18px 0}
.eclass-tabs .classroom-tab,.eclass-tabs .student-classroom-tab{flex:1;border:0;background:transparent;border-radius:10px;min-height:48px;color:#53657a;box-shadow:none}
.eclass-tabs .classroom-tab.active,.eclass-tabs .student-classroom-tab.active{background:#fff;color:#0e3761;box-shadow:0 3px 10px rgba(26,50,78,.09)}
.tab-icon{font-size:14px;opacity:.85}
.eclass-editor-card,.eclass-library-card,.eclass-student-panel{border-radius:20px}
.eclass-card-heading{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid #edf1f5}
.eclass-card-heading h2{margin:0 0 4px;font-size:18px}
.eclass-card-heading p{margin:0;color:#7b8797;font-size:12px;line-height:1.45}
.eclass-card-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#0f3b69;color:#fff;font-size:18px;font-weight:900;flex:0 0 42px}
.eclass-card-icon.soft{background:#edf4fb;color:#174d82}
.eclass-editor-card textarea{width:100%;border:1px solid #d0d5dd;border-radius:12px;padding:12px 14px;font:inherit;resize:vertical;outline:none}
.eclass-editor-card textarea:focus{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(36,90,155,.10)}
.eclass-empty{min-height:180px;border:1px dashed #cdd8e4;border-radius:16px;background:#f9fbfd;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:26px;gap:6px;color:#7a8999}
.eclass-empty strong{color:#3a4b5f;font-size:15px}
.eclass-empty span{font-size:12px}
.resource-feature-card{display:flex;align-items:center;gap:16px;padding:18px;border:1px solid #dbe5ef;border-radius:17px;background:linear-gradient(135deg,#fbfdff,#f3f8fc)}
.resource-file-icon{width:54px;height:64px;border-radius:12px;display:grid;place-items:center;background:#173f73;color:#fff;font-size:11px;font-weight:900;letter-spacing:.05em;flex:0 0 54px;box-shadow:0 8px 18px rgba(23,63,115,.15)}
.resource-feature-copy{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}
.resource-feature-copy strong{font-size:16px;overflow-wrap:anywhere}
.resource-feature-copy small{font-size:11px;color:#6b7a8b;line-height:1.45}
.resource-kicker{font-size:10px;font-weight:900;color:#2d6ca3;letter-spacing:.08em}
.resource-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.resource-actions .btn{min-height:38px;padding:0 12px;font-size:11px}
.resource-list{display:flex;flex-direction:column;gap:9px}
.resource-list-card{border:1px solid #e1e7ee;border-radius:15px;padding:13px 14px;background:#fff;display:flex;align-items:center;justify-content:space-between;gap:12px}
.resource-list-card.important{border-color:#b8d2ec;background:#f7fbff}
.resource-list-main{display:flex;align-items:flex-start;gap:11px;min-width:0}
.resource-week-badge{display:inline-flex;align-items:center;justify-content:center;min-width:54px;min-height:28px;padding:0 8px;border-radius:9px;background:#eaf2fa;color:#174d82;font-size:11px;font-weight:900;white-space:nowrap}
.resource-list-copy{display:flex;flex-direction:column;gap:3px;min-width:0}
.resource-list-copy strong{font-size:14px;color:#1d2b3c}
.resource-list-copy span{font-size:12px;color:#66788a;line-height:1.45}
.resource-list-copy small{font-size:10px;color:#8a96a4;overflow-wrap:anywhere}
.student-class-hero{margin:14px 0 0;border-radius:19px;background:linear-gradient(135deg,#0d2e55,#1c5b91);color:#fff;padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.student-class-hero-title{display:flex;flex-direction:column;gap:4px}
.student-class-hero-title .eclass-eyebrow{color:#bcd8ef;margin:0}
.student-class-hero-title strong{font-size:19px}
.student-class-hero-title>span:last-child{font-size:12px;color:#dbe8f4}
.student-eclass-stats{grid-template-columns:repeat(3,minmax(78px,1fr));min-width:270px}
.student-resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.student-resource-card{border:1px solid #e1e7ee;border-radius:17px;padding:16px;background:#fff;display:flex;flex-direction:column;gap:9px}
.student-resource-card.important{border-color:#bad4ec;background:#f9fcff}
.student-resource-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.resource-important{font-size:10px;font-weight:900;color:#a24b00;background:#fff1dc;padding:4px 7px;border-radius:999px}
.student-resource-card>strong{font-size:15px;color:#1a2d42}
.student-resource-card>p{margin:0;color:#5f6f80;font-size:12px;line-height:1.55;min-height:36px}
.student-resource-card>small{color:#8b97a5;font-size:10px;overflow-wrap:anywhere}
.student-resource-card>.btn{margin-top:auto}
.resource-inline-message .alert{margin-bottom:0}
.student-resource-feature{background:linear-gradient(135deg,#f7fbff,#eef6fd)}
.classroom-item{transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease}
.classroom-item:hover{border-color:#cfdae6;box-shadow:0 6px 18px rgba(23,55,90,.05)}
.classroom-item.pinned{border-left:4px solid #2f6ea6}
.student-assignment-card{box-shadow:0 3px 14px rgba(23,40,64,.035)}
.course-card{position:relative;overflow:hidden;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}
.course-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:#dce7f2}
.course-card.current-term::before{background:#2f6ea6}
.course-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(23,48,80,.07)}
.course-card-stats em:first-child{background:#eaf3fb;color:#185080}

@media(max-width:900px){
  .eclass-course-hero{flex-direction:column}
  .eclass-mini-stats{min-width:0;width:100%;grid-template-columns:repeat(4,1fr)}
  .student-class-hero{flex-direction:column;align-items:stretch}
  .student-eclass-stats{grid-template-columns:repeat(3,1fr)}
  .student-resource-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .eclass-course-shell{border-radius:18px}
  .eclass-course-selector{padding:14px 14px 0}
  .eclass-course-hero{padding:20px 16px}
  .eclass-course-hero h2{font-size:23px}
  .eclass-mini-stats{grid-template-columns:repeat(2,1fr);gap:7px}
  .student-eclass-stats{grid-template-columns:repeat(3,1fr)}
  .eclass-tabs{overflow:auto;position:sticky;top:68px;z-index:18;background:#eaf0f6;padding:6px}
  .eclass-tabs .classroom-tab,.eclass-tabs .student-classroom-tab{flex:0 0 auto;min-width:118px;padding:0 12px}
  .resource-feature-card{align-items:flex-start;flex-wrap:wrap}
  .resource-feature-copy{min-width:calc(100% - 76px)}
  .resource-feature-card>.resource-actions{width:100%}
  .resource-feature-card>.resource-actions .btn{flex:1}
  .resource-list-card{align-items:flex-start;flex-direction:column}
  .resource-list-card>.resource-actions{width:100%}
  .resource-list-card>.resource-actions .btn{flex:1}
}


/* V6.32.4 학생 학적 초기화 / 로그인 분리 */
.student-reset-panel{
  border:1px solid #f0c7c7;
  background:linear-gradient(180deg,#fffafa 0%,#fff 100%);
}
.student-reset-panel .badge-danger{
  background:#fff0f0;
  color:#a23535;
  border:1px solid #efcaca;
}
.student-reset-confirm{
  display:grid;
  grid-template-columns:minmax(260px,460px) 1fr;
  align-items:end;
  gap:14px;
  margin-top:16px;
  padding:14px;
  border:1px dashed #e5bcbc;
  border-radius:14px;
  background:#fff;
}
.student-reset-confirm input{
  border-color:#e0b8b8;
}
.student-reset-confirm input:focus{
  border-color:#c85a5a;
  box-shadow:0 0 0 3px rgba(200,90,90,.10);
}
@media(max-width:720px){
  .student-reset-confirm{grid-template-columns:1fr}
}


/* V6.34.6 syllabus upload UI */
.syllabus-file-field{margin-bottom:18px}
.syllabus-file-input{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.syllabus-upload-zone{position:relative;min-height:220px;border:1.5px dashed #b7c8da;border-radius:18px;background:linear-gradient(180deg,#fbfdff 0%,#f6f9fc 100%);display:flex!important;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px 22px!important;cursor:pointer;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease,transform .16s ease;color:#344054}
.syllabus-upload-zone:hover,.syllabus-upload-zone.is-dragover{border-color:#356fa6;background:#f3f8fd;box-shadow:0 0 0 4px rgba(53,111,166,.08)}
.syllabus-upload-zone.is-dragover{transform:translateY(-1px)}
.syllabus-upload-zone:focus-within{border-color:#356fa6;box-shadow:0 0 0 4px rgba(53,111,166,.10)}
.syllabus-upload-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;margin-bottom:13px;background:#e7f0f8;color:#174d82;font-size:25px;font-weight:900;box-shadow:inset 0 0 0 1px rgba(23,77,130,.06)}
.syllabus-upload-title{font-size:16px;font-weight:900;letter-spacing:-.02em;color:#172b43}
.syllabus-upload-subtitle{margin-top:6px;font-size:12px;line-height:1.55;color:#7a8999}
.syllabus-upload-action{display:inline-flex;align-items:center;justify-content:center;min-height:36px;margin-top:16px;padding:0 17px;border-radius:10px;background:#0f3b69;color:#fff;font-size:12px;font-weight:900;box-shadow:0 5px 12px rgba(15,59,105,.14)}
.syllabus-upload-formats{margin-top:12px;font-size:10px;font-weight:750;color:#98a2b3;letter-spacing:.01em}
.syllabus-selected-file{display:flex;align-items:center;gap:12px;margin-top:10px;padding:12px 14px;border:1px solid #cfe0ef;border-radius:14px;background:#f7fbff}
.syllabus-selected-file.hidden{display:none}
.syllabus-selected-icon{width:42px;height:48px;display:grid;place-items:center;flex:0 0 42px;border-radius:10px;background:#173f73;color:#fff;font-size:10px;font-weight:900;letter-spacing:.04em}
.syllabus-selected-copy{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.syllabus-selected-copy strong{font-size:13px;color:#1d2b3c;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.syllabus-selected-copy small{font-size:10px;color:#77879a}
.syllabus-selected-check{width:28px;height:28px;border-radius:999px;display:grid;place-items:center;flex:0 0 28px;background:#e8f5ee;color:#18794e;font-size:14px;font-weight:900}
@media(max-width:640px){
  .syllabus-upload-zone{min-height:190px;padding:24px 16px!important}
  .syllabus-upload-icon{width:48px;height:48px;border-radius:14px}
  .syllabus-upload-title{font-size:15px}
  .syllabus-upload-subtitle{font-size:11px}
  .syllabus-upload-formats{line-height:1.5}
}

/* V6.34.11 mobile layout stability + compact student rosters */
html,body{width:100%;max-width:100%;overflow-x:hidden}
body{overflow-wrap:anywhere}
img,svg,video,canvas{max-width:100%;height:auto}
.shell,.app-layout,.main,.page-section,.panel,.stat,.toolbar,.toolbar .left,.toolbar .right,.field,.form-grid-2,.form-grid-3,.form-grid-4,.grid-2,.grid-4,.profile-grid{min-width:0;max-width:100%}
.main,.page-section{width:100%}
.panel{overflow-wrap:anywhere}
.field input,.field select,.field textarea,input,select,textarea{max-width:100%;min-width:0}
.table-wrap{max-width:100%;min-width:0;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior-inline:contain}
.table-wrap>table{max-width:none}
.toolbar .left,.toolbar .right{min-width:0}
.toolbar h1,.toolbar h2,.toolbar h3,.page-title h1,.page-title p,.note{overflow-wrap:anywhere}

/* Desktop: mobile-only student summaries stay hidden. */
.student-mobile-head,.student-mobile-summary,.roster-mobile-summary{display:none}

@media(max-width:700px){
  .main{padding:16px 12px}
  .panel{padding:16px;border-radius:14px}
  .page-title{gap:12px;margin-bottom:16px}
  .page-title h1{font-size:24px}
  .toolbar{gap:8px}
  .toolbar .left,.toolbar .right{max-width:100%}
  .toolbar .left{min-width:0}
  .toolbar select,.toolbar input{max-width:100%}
  .table-wrap{margin-left:0;margin-right:0}

  /* Student management: compact card rows instead of a 16-column wide table. */
  #studentTable.table-wrap{overflow:visible}
  .student-management-table{display:block;width:100%;min-width:0;border-collapse:separate}
  .student-management-table thead{display:none}
  .student-management-table tbody{display:grid;grid-template-columns:1fr;gap:9px;width:100%}
  .student-management-table tr{display:grid;grid-template-columns:30px minmax(0,1fr);gap:8px 10px;align-items:start;width:100%;padding:12px;border:1px solid #e4e7ec;border-radius:13px;background:#fff;box-shadow:0 2px 8px rgba(23,32,51,.035)}
  .student-management-table tr.student-row-selected{border-color:#b8d3f0;background:#f5faff}
  .student-management-table td{display:none;border:0;padding:0;min-width:0;background:transparent!important}
  .student-management-table .student-check-col{display:flex;grid-column:1;grid-row:1;position:static;width:30px;min-width:30px;align-items:flex-start;justify-content:center;padding-top:2px}
  .student-management-table .student-mobile-summary{display:block;grid-column:2;grid-row:1;min-width:0}
  .student-management-table .student-manage-cell{display:block;grid-column:1/-1;grid-row:2;padding-top:9px;border-top:1px solid #eef2f6}
  .student-mobile-title{display:flex;align-items:baseline;gap:7px;min-width:0;flex-wrap:wrap}
  .student-mobile-title strong{font-size:15px;color:#101828;line-height:1.35}
  .student-mobile-id{font-size:12px;color:#667085;font-weight:750;letter-spacing:.01em}
  .student-mobile-meta{display:flex;align-items:center;gap:5px 8px;flex-wrap:wrap;margin-top:5px;color:#667085;font-size:11px;line-height:1.45}
  .student-mobile-meta span+span::before{content:'·';margin-right:8px;color:#c0c7d0}
  .student-mobile-state{margin-top:7px}
  .student-management-table .student-manage-cell .table-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;width:100%}
  .student-management-table .student-manage-cell .table-action{width:100%;min-height:38px;padding:0 9px;font-size:11px;white-space:normal;line-height:1.25}
  .student-management-table .student-manage-cell .reset-student-link-btn{grid-column:1/-1}

  /* Course roster assignment: name and student number stay together on one compact row. */
  #rosterStudentTable.table-wrap{overflow:visible}
  .roster-student-table{display:block;width:100%;min-width:0;border-collapse:separate}
  .roster-student-table thead{display:none}
  .roster-student-table tbody{display:grid;grid-template-columns:1fr;gap:7px;width:100%}
  .roster-student-table tr{display:grid;grid-template-columns:30px minmax(0,1fr);gap:8px;align-items:center;width:100%;padding:10px 11px;border:1px solid #e4e7ec;border-radius:12px;background:#fff}
  .roster-student-table td{display:none;border:0;padding:0;min-width:0}
  .roster-student-table .roster-check-cell{display:flex;grid-column:1;align-items:center;justify-content:center}
  .roster-student-table .roster-mobile-summary{display:block;grid-column:2;min-width:0}
  .roster-mobile-title{display:flex;align-items:baseline;gap:7px;flex-wrap:wrap;min-width:0}
  .roster-mobile-title strong{font-size:14px;color:#101828}
  .roster-mobile-id{font-size:11px;color:#667085;font-weight:750}
  .roster-mobile-meta{display:flex;align-items:center;gap:5px 7px;flex-wrap:wrap;margin-top:4px;color:#667085;font-size:10px;line-height:1.4}
  .roster-mobile-meta span+span::before{content:'·';margin-right:7px;color:#c0c7d0}
  .roster-grade-group{margin-bottom:15px!important}
  .roster-grade-group>.toolbar{margin-bottom:7px}
}

@media(max-width:380px){
  .main{padding:14px 10px}
  .panel{padding:14px}
  .student-management-table tr{padding:10px}
  .student-management-table .student-manage-cell .table-actions{grid-template-columns:1fr}
  .student-management-table .student-manage-cell .reset-student-link-btn{grid-column:auto}
}



/* V6.34.11 관리자 출결 변경 */
.attendance-matrix-edit{border:0;background:transparent;padding:4px;margin:-4px;cursor:pointer;border-radius:8px}
.attendance-matrix-edit:hover,.attendance-matrix-edit:focus-visible{background:#eef4ff;outline:none}
#adminAttendanceEditDrawer .attendance-detail-status-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
#adminAttendanceEditDrawer .bulk-actions{display:flex;gap:8px;justify-content:flex-end}
#adminAttendanceEditDrawer #adminAttendanceEditMessage .alert{margin-top:14px}
@media(max-width:640px){
  #adminAttendanceEditDrawer .attendance-detail-status-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
  #adminAttendanceEditDrawer .bulk-actions{padding:0 16px 18px;display:grid;grid-template-columns:1fr 1fr}
  #adminAttendanceEditDrawer .bulk-actions .btn{width:100%;min-height:44px}
}

/* V6.34.11 professor attendance: dynamic redraw must not move the page vertically */
#attendanceWeekBar,
#professorAttendanceTable,
#attendanceWeekSummary,
#attendanceEditWindowNotice { overflow-anchor: none; }

/* V6.34.11 교수 출결: 과목 -> 주차 직접 선택 + 교수용 출결현황 */
.attendance-course-select-panel{overflow:hidden}
.attendance-step-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.attendance-step-heading>div{display:flex;align-items:center;gap:12px;min-width:0}
.attendance-step-heading h2{margin:0;font-size:18px;color:#101828}
.attendance-step-number{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:#173b67;color:#fff;font-size:15px;font-weight:900}
.attendance-course-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.attendance-course-card{appearance:none;width:100%;min-width:0;text-align:left;border:1px solid #dfe5ec;background:#fff;border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:7px;cursor:pointer;transition:.16s ease;color:#344054}
.attendance-course-card:hover{border-color:#98b4d3;box-shadow:0 5px 18px rgba(23,59,103,.08);transform:translateY(-1px)}
.attendance-course-card.active{border-color:#173b67;background:#f5f8fc;box-shadow:0 0 0 2px rgba(23,59,103,.08)}
.attendance-course-card-term{align-self:flex-start;font-size:10px;font-weight:800;color:#175cd3;background:#eff8ff;border-radius:999px;padding:4px 8px}
.attendance-course-card strong{font-size:16px;line-height:1.35;color:#101828;overflow-wrap:anywhere}
.attendance-course-card>span:not(.attendance-course-card-term):not(.attendance-course-card-action){font-size:11px;line-height:1.6;color:#667085;overflow-wrap:anywhere}
.attendance-course-card-action{margin-top:3px;font-size:12px;font-weight:850;color:#175cd3}
.attendance-week-always-open{display:block!important;margin-top:14px}
.attendance-status-panel{overflow:hidden}
.attendance-status-toolbar{align-items:flex-start;gap:14px}
.attendance-status-summary{display:flex;flex-wrap:wrap;gap:7px;align-items:center;justify-content:flex-end;text-align:right}
.attendance-status-table{margin-top:14px;min-width:0;max-width:100%;overflow:hidden}
.attendance-status-table table{width:100%}
.attendance-status-table th,.attendance-status-table td{white-space:nowrap;text-align:center}
.attendance-status-table th:nth-child(2),.attendance-status-table td:nth-child(2){text-align:left}
.attendance-status-mobile{display:none}
.attendance-status-card{border:1px solid #e4e7ec;border-radius:12px;padding:12px;background:#fff;display:flex;flex-direction:column;gap:10px}
.attendance-status-card-head{display:flex;justify-content:space-between;gap:10px;align-items:center}
.attendance-status-card-head>div{min-width:0;display:flex;align-items:baseline;gap:7px}
.attendance-status-card-head strong{font-size:14px;color:#101828}
.attendance-status-card-head span:not(.badge){font-size:10px;color:#667085}
.attendance-status-card-counts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px}
.attendance-status-card-counts span{display:flex;flex-direction:column;align-items:center;gap:2px;background:#f8fafc;border-radius:8px;padding:7px 3px;font-size:9px;color:#667085}
.attendance-status-card-counts b{font-size:13px;color:#344054}
#attendanceWeekEntryWorkspace.hidden{display:none!important}
@media(max-width:760px){
  .attendance-course-list{grid-template-columns:1fr;gap:9px}
  .attendance-course-card{padding:13px 14px;border-radius:12px}
  .attendance-course-card strong{font-size:15px}
  .attendance-step-heading{margin-bottom:12px}
  .attendance-step-heading h2{font-size:16px}
  .attendance-step-number{width:30px;height:30px;flex-basis:30px;border-radius:9px;font-size:13px}
  .attendance-status-toolbar{display:block}
  .attendance-status-summary{justify-content:flex-start;text-align:left;margin-top:10px}
  .attendance-status-desktop{display:none}
  .attendance-status-mobile{display:grid;gap:8px}
  .attendance-status-table{overflow:visible}
}
@media(max-width:380px){
  .attendance-status-card-counts{grid-template-columns:repeat(3,minmax(0,1fr))}
}
.attendance-change-course-btn{grid-column:1/-1;justify-self:flex-start}

/* V6.35.1 professor attendance edit window: 14 days */

/* V6.35.1 student professor evaluation */
.evaluation-card-list{display:grid;gap:14px}
.evaluation-course-card{overflow:hidden}
.evaluation-course-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.evaluation-course-head h2{margin:7px 0 4px;font-size:18px;color:#101828}
.evaluation-course-head p{margin:0;color:#667085;font-size:12px}
.evaluation-intro{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px;padding-top:14px;border-top:1px solid #edf1f5}
.evaluation-intro .note{margin:0;max-width:760px}
.evaluation-form{margin-top:16px;padding-top:16px;border-top:1px solid #edf1f5}
.evaluation-question{display:grid;grid-template-columns:minmax(180px,1fr) minmax(180px,260px);gap:16px;align-items:center;padding:11px 0;border-bottom:1px solid #f0f2f5}
.evaluation-question:last-of-type{border-bottom:0}
.evaluation-question label{font-size:13px;color:#344054;line-height:1.4}
.evaluation-score-select{width:100%;min-height:42px}
.evaluation-form-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.evaluation-form-message{margin-top:10px}
.evaluation-summary{display:grid;grid-template-columns:180px minmax(0,1fr);gap:18px;margin-top:16px;padding-top:16px;border-top:1px solid #edf1f5}
.evaluation-overall{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:16px;border-radius:14px;background:#f5f8fc;border:1px solid #dce6f2}
.evaluation-overall span{font-size:11px;color:#667085;font-weight:750}
.evaluation-overall strong{font-size:34px;line-height:1.05;color:#173b67;margin:5px 0}
.evaluation-overall small{font-size:10px;color:#667085}
.evaluation-result-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.evaluation-result-item{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-width:0;padding:12px 8px;border:1px solid #e5e9ef;border-radius:12px;background:#fff}
.evaluation-result-item span{font-size:10px;color:#667085;line-height:1.35;min-height:28px;display:flex;align-items:center}
.evaluation-result-item strong{font-size:20px;color:#101828;margin-top:5px}
.evaluation-result-item small{font-size:9px;color:#98a2b3}
.evaluation-privacy-note{margin-bottom:14px}
@media(max-width:760px){
  .evaluation-course-head{gap:8px}
  .evaluation-course-head h2{font-size:16px}
  .evaluation-intro{display:block}
  .evaluation-intro .btn{width:100%;margin-top:12px}
  .evaluation-question{grid-template-columns:1fr;gap:7px;padding:10px 0}
  .evaluation-form-actions{display:grid;grid-template-columns:1fr 1fr}
  .evaluation-form-actions .btn{width:100%}
  .evaluation-summary{grid-template-columns:1fr;gap:10px}
  .evaluation-overall{align-items:center;text-align:center}
  .evaluation-result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .evaluation-result-item:last-child{grid-column:1/-1}
}

/* V6.35.2 mobile header/nav height stabilization */
.topbar{
  min-height:68px;
  max-height:68px;
  overflow:hidden;
}
.topbar>.brand{
  min-width:0;
  max-width:calc(100% - 120px);
  flex:1 1 auto;
  overflow:hidden;
}
.topbar>.brand>div:last-child{
  min-width:0;
  overflow:hidden;
}
.topbar .brand .full-name,
.topbar .brand small{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar>#logoutBtn{
  flex:0 0 auto;
  white-space:nowrap;
}

@media (max-width:900px){
  .topbar{
    height:68px;
    min-height:68px;
    max-height:68px;
    flex-wrap:nowrap;
    overflow:hidden;
  }
  .sidebar{
    height:56px;
    min-height:56px;
    max-height:56px;
    display:flex;
    flex-wrap:nowrap;
    align-items:center;
    gap:4px;
    padding:8px 10px;
    overflow-x:auto;
    overflow-y:hidden;
    overscroll-behavior-x:contain;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .sidebar::-webkit-scrollbar{display:none}
  .sidebar .nav-btn{
    flex:0 0 auto;
    width:auto;
    height:40px;
    min-height:40px;
    max-height:40px;
    padding:0 12px;
    margin:0;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    white-space:nowrap;
    line-height:1;
    overflow:hidden;
  }
}

@media (max-width:640px){
  .topbar{
    padding-left:12px;
    padding-right:12px;
  }
  .topbar>.brand{
    gap:8px;
    max-width:calc(100% - 94px);
  }
  .topbar .brand-mark.brand-logo-wrap{
    width:42px;
    height:42px;
    flex:0 0 42px;
  }
  .topbar .brand small{
    margin:0;
    font-size:11px;
    line-height:1.2;
  }
  .topbar>#logoutBtn{
    min-height:38px;
    height:38px;
    padding:0 12px;
    border-radius:10px;
    font-size:12px;
  }
}

/* V6.35.3 주간반/야간반 출석부 구분 */
.daynight-group-label{display:flex;align-items:center;gap:6px;margin:4px 2px 0;padding:6px 10px;border-radius:9px;background:#eef4ff;color:#173f73;font-size:12px;font-weight:850}
.daynight-group-label:first-child{margin-top:0}
.daynight-group-label span{font-weight:700;color:#475467;font-size:11px}
.daynight-group-row td{background:#eef4ff!important;color:#173f73;font-weight:850;text-align:left!important;font-size:12px}
.attendance-status-mobile .daynight-group-label{margin-top:6px}

/* V6.35.3 출결 조회: 학생별 요약 → 세부내역 */
.history-person-row{cursor:pointer}
.history-person-row:hover td,.history-person-row:focus td{background:#f5f8ff}
.history-person-table td,.history-person-table th{text-align:center}
.history-person-table td:first-child,.history-person-table th:first-child,.history-person-table td:nth-child(2),.history-person-table th:nth-child(2){text-align:left}
.history-count-warn{color:#b42318;font-weight:800}
.history-person-card{width:100%;text-align:left;cursor:pointer;font:inherit;margin-bottom:8px}
.history-card-more{font-size:11px;color:#173f73;font-weight:800}
.history-student-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;margin-bottom:12px;border:1px solid #e4e7ec;border-radius:12px;background:#fff}
.history-student-head>div:first-child{display:flex;align-items:baseline;gap:8px}
.history-student-head strong{font-size:17px;color:#101828}
.history-student-head span{font-size:12px;color:#667085}
.history-student-head .attendance-status-card-counts{min-width:280px}
.history-detail-table{width:100%}
.history-row-future td{color:#98a2b3}
#profHistorySummary{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
@media (max-width:640px){.history-student-head .attendance-status-card-counts{min-width:0;width:100%}.history-detail-table th:nth-child(4),.history-detail-table td:nth-child(4){display:none}}
.history-detail-item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 12px;border:1px solid #e4e7ec;border-radius:10px;background:#fff;margin-bottom:6px}
.history-detail-item strong{display:block;font-size:13px;color:#101828}
.history-detail-item small{display:block;margin-top:2px;font-size:11px;color:#667085}
.history-detail-item.history-row-future strong{color:#98a2b3}

/* V6.35.3 모바일 레이아웃 벌어짐 수정
   - body의 overflow-wrap:anywhere 때문에 표 칸이 글자 단위로 쪼개지며(예: "20/26-/2") 행 높이가 크게 늘어나던 문제
     → 표는 단어 단위로 유지하고 넘치면 가로 스크롤
   - 통계 카드·학적 항목이 모바일에서 한 줄에 하나씩 세로로 길게 늘어지던 문제 → 2열 */
.table-wrap th{white-space:nowrap}
.table-wrap td{overflow-wrap:normal;word-break:keep-all}
@media (max-width:640px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .stat{padding:14px 15px}
  .stat .label{font-size:12px}
  .stat .value{margin-top:4px;font-size:22px}
  .profile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .profile-item{padding:10px 12px}
  .profile-item .k{font-size:11px;margin-bottom:3px}
  .profile-item .v{font-size:14px;overflow-wrap:anywhere}
}

/* V6.35.3 과제 제출현황: 저장 버튼이 표 밖으로 밀려 보이지 않던 문제 */
.assignment-submission-table{min-width:880px}
.assignment-submission-table td,.assignment-submission-table th{padding:11px 9px}
.assignment-submission-table .assignment-score{width:76px}
.assignment-submission-table .assignment-feedback{min-width:150px}
.assignment-submission-table .download-submission-btn{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.assignment-submission-table th:last-child,.assignment-submission-table td:last-child{position:sticky;right:0;background:#fff;box-shadow:-8px 0 10px -8px rgba(16,24,40,.18)}
.assignment-submission-table th:last-child{background:#f9fafb}
.assignment-attach-label{cursor:pointer}
.assignment-attach-label.is-busy{pointer-events:none;opacity:.7}
.assignment-attach-input{display:none}

/* V6.35.3 수업 화면: 가로 탭 → 세로 막대(아코디언). 막대를 누르면 아래로 펼쳐진다. */
.eclass-accordion{display:flex;flex-direction:column;gap:10px;margin:16px 0}
.eclass-acc-item{border:1px solid #e4e7ec;border-radius:14px;background:#fff;overflow:hidden}
.eclass-acc-item.open{border-color:#b9cbe4;box-shadow:0 4px 16px rgba(23,50,90,.07)}
.eclass-acc-bar.classroom-tab,.eclass-acc-bar.student-classroom-tab{display:flex;align-items:center;gap:12px;width:100%;min-height:58px;padding:0 18px;border:0;border-radius:0;background:#fff;color:#17324d;font-size:16px;font-weight:800;text-align:left;box-shadow:none;flex:none}
.eclass-acc-bar.active{background:#f2f6fc!important;color:#0e3761!important}
.eclass-acc-bar .tab-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:#eaf0f6;color:#173f73;font-size:14px;flex:0 0 32px}
.eclass-acc-bar .acc-label{flex:1}
.eclass-acc-bar .acc-count{min-width:26px;padding:3px 9px;border-radius:999px;background:#173f73;color:#fff;font-size:12px;font-weight:800;text-align:center}
.eclass-acc-bar .acc-count:empty{display:none}
.eclass-acc-bar .acc-count.is-empty{background:#eef1f5;color:#98a2b3}
.eclass-acc-bar .acc-chevron{font-size:22px;color:#98a2b3;transition:transform .18s ease;line-height:1}
.eclass-acc-item.open .acc-chevron{transform:rotate(90deg);color:#173f73}
.eclass-acc-item>.classroom-pane{padding:4px 14px 14px;border-top:1px solid #eef1f5}
.eclass-acc-item>.classroom-pane>.panel,.eclass-acc-item>.classroom-pane .classroom-editor-grid>.panel{box-shadow:none}
@media (max-width:640px){
  .eclass-acc-bar.classroom-tab,.eclass-acc-bar.student-classroom-tab{min-height:54px;padding:0 14px;font-size:15px}
  .eclass-acc-item>.classroom-pane{padding:2px 8px 10px}
}

/* V6.35.3 모바일에서도 좌측 상단에 학교 이름 전체 표시 */
@media (max-width:640px){
  .brand .full-name,.topbar .brand .full-name{display:block!important;font-size:15px;line-height:1.2;letter-spacing:-0.04em}
  .topbar .brand small,.topbar .brand .brand-subtitle-en{font-size:10.5px;margin-top:1px}
}
@media (max-width:360px){
  .brand .full-name,.topbar .brand .full-name{font-size:14px}
}

/* V6.35.3 삼성 인터넷 대응 */
/* 1) 브라우저의 자동 글자 확대로 화면이 벌어지는 것을 막는다 */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
/* 2) 다크 모드: 사이트가 다크 모드를 직접 처리한다고 알려 브라우저의 강제 어둡게 변환을 막고, 화면은 밝게 유지한다 */
@media (prefers-color-scheme: dark){
  :root{color-scheme:only light}
  html,body{background:var(--bg)!important;color:var(--text)!important}
}

/* V6.35.3 아이폰(사파리): 16px보다 작은 입력칸을 누르면 화면이 확대된 채 남아 레이아웃이 벌어져 보이는 문제 방지 */
@media (max-width:760px){
  input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):not([type="range"]),select,textarea{font-size:16px!important}
}
/* V6.36.0 성적·P/NP 파일 일괄 등록 */
.record-import-preview{margin-top:14px}
.record-import-summary{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.record-import-issues{margin:8px 0 12px;border:1px solid #f1d4d4;border-radius:12px;padding:10px 14px;background:#fffafa}
.record-import-issues summary{cursor:pointer;font-weight:700}
.record-import-issues ul{margin:8px 0 0;padding-left:18px;max-height:240px;overflow:auto}
.record-import-issues li{margin:3px 0;font-size:14px}
.record-import-issues .issue-warn{color:#8a5a00}
.record-import-issues .issue-error{color:#b42318}
.section-subtitle{margin:22px 0 10px;font-size:18px}
.student-record-term{margin:0 0 18px}
.student-record-term h3{margin:0 0 8px;font-size:16px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.student-record-term table{min-width:0;width:100%;table-layout:auto}
@media (max-width:760px){
  .student-record-term th,.student-record-term td{padding:9px 6px;font-size:14px;white-space:normal;word-break:keep-all}
  .student-record-term th:first-child,.student-record-term td:first-child{min-width:96px}
}
/* V6.36.5 학적 조회 학년 필터 */
.student-lookup-search{grid-template-columns:160px minmax(0,1fr) auto}
.lookup-count{grid-column:1/-1;margin:0 0 2px;font-weight:700}
@media(max-width:640px){.student-lookup-search{grid-template-columns:1fr}}
#studentLookup .toolbar .right{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
#studentLookup .toolbar .right select{min-height:40px;padding:6px 10px;border:1px solid #d0d5dd;border-radius:10px;background:#fff}
/* V6.36.7 학기별 성적표 다운로드 */
.grade-export-row{display:grid;grid-template-columns:160px 160px auto;gap:12px;align-items:end}
@media(max-width:640px){.grade-export-row{grid-template-columns:1fr}}