:root {
  color-scheme: light;
  --surface-page: #f0f0f0;
  --surface-card: #ffffff;
  --ink: #1a1a1a;
  --ink-soft: #444444;
  --muted: #767676;
  --line: #dcdcdc;
  --baseline: #bdbdbd;
  --accent: #c8102e;
  --accent-fill: #f8e6e9;
  --data: #3a3a3a;
  --data-fill: rgba(58,58,58,0.10);
  --primary: #333333;
  --good: #1e7a3c;
  --good-bg: #e4f1e8;
  --warn-ink: #7a4b00;
  --warn-bg: #faefd6;
  --warn-dot: #c98200;
  --critical: #b3261e;
  --critical-bg: #f7e1df;
  --border: #c9c9c9;
  --shadow: none;
  --type-1: #3a3a3a;
  --type-2: #c8102e;
  --type-3: #1e7a3c;
  --type-4: #1f4e8c;
  --type-5: #8a5a00;
  --type-6: #6b6b6b;
  --type-7: #7b2d8b;
  --type-8: #b36b00;
  --brand-red: #c8102e;
  --brand-charcoal: #3a3a3a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--surface-page);
  color: var(--ink);
  font-family: "Noto Sans KR", system-ui, -apple-system, "Malgun Gothic", sans-serif;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.display { font-weight: 700; }
.tnum { font-variant-numeric: tabular-nums; }
h1, h2, h3 { margin: 0; }
p { margin: 0; }
button { font-family: inherit; }

/* topbar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: var(--surface-card);
  border-bottom: 2px solid var(--ink);
  padding: 14px 24px 0;
}
.brand { display: flex; align-items: center; gap: 12px; padding-bottom: 10px; flex-wrap: wrap; }
.brand h1 { font-size: 22px; }

.logo-mark { display: flex; align-items: center; gap: 8px; }
.logo-mark img.logo-icon { width: 30px; height: 30px; flex-shrink: 0; object-fit: contain; }
.logo-mark .wordmark {
  font-family: "Noto Sans KR", sans-serif; font-weight: 900; font-size: 22px;
  letter-spacing: 0.01em; color: var(--ink); white-space: nowrap;
}
.brand-divider { width: 1px; height: 20px; background: var(--border); }
.tabs { display: flex; gap: 4px; overflow-x: auto; }
.tab-btn {
  background: none; border: none; cursor: pointer;
  padding: 10px 14px; font-size: 14px; font-weight: 600;
  color: var(--ink-soft); border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover { color: var(--ink); }

/* layout */
#app { max-width: 900px; margin: 0 auto; padding: 20px 16px 60px; display: flex; flex-direction: column; gap: 16px; }
.tab-panel { display: none; flex-direction: column; gap: 16px; }
.tab-panel.active { display: flex; }
/* 채점 입력: 넓은 화면에서는 왼쪽에 주간 업로드 현황 */
/* 본문(900px)은 그대로 두고, 양옆 여백이 충분하면 왼쪽 여백에 작게 띄움 */
#panel-score { position: relative; }
#weeklyStatusCard { padding: 12px; font-size: 12px; position: relative; }
#weeklyStatusCard h2 { font-size: 14px; }
#weeklyStatusCard .card-sub { display: none; }
}
.ws-grade { margin-bottom: 10px; }
.ws-round { padding: 6px 0; border-top: 1px solid var(--border); font-size: 13px; }
.drop-hot { outline: 2px dashed #1a7f37; outline-offset: 2px; background: #eafaf0; }
.ws-row { display: flex; align-items: center; gap: 8px; margin: 5px 0; }
.ws-name { width: 56px; font-weight: 600; white-space: nowrap; }
.ws-badge { display: inline-block; min-width: 92px; text-align: center; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.ws-ok { background: #1a7f37; color: #fff; }
.ws-no { background: #fdecea; color: #c0392b; border: 1px solid #c0392b; }

.card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 18px 20px;
  
}
.card h2 { font-size: 15px; font-weight: 700; margin-bottom: 8px; padding-bottom: 6px; border-bottom: 1px solid var(--ink); }
.card-sub { font-size: 12px; color: var(--ink-soft); margin-bottom: 12px; }

/* forms */
.inline-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
input[type=text], input[type=date], input[type=number], select {
  font-family: inherit;
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: #fff;
  color: var(--ink);
  min-width: 120px;
}
/* select는 flex row 안에서 줄어들면 선택된 글자가 잘려 보여서(특히 시험지 이름), 줄어들지 않고 필요하면 다음 줄로 넘어가게 함 */
select { flex-shrink: 0; max-width: 100%; font-variant-numeric: tabular-nums; }
/* 재시험 탭 두 번째 드롭다운(회차 선택) — "학년 · N주차 (날짜) · 오답 N개"가 다 들어가야 해서 기본 min-width보다 훨씬 넓게 */
#retestRoundSel { min-width: 300px; }
/* 담당 선생님 선택(헤더)·시험 학년 선택(학생 등록)은 기기/폰트에 따라 괄호 안 글자가 타이트하게 붙어서
   실제로는 넉넉하게 안 보인다는 신고가 있었음 — 필요 폭보다 여유 있게 최소폭을 줘서 잘릴 여지를 없앰 */
#currentTeacherSel { min-width: 230px; }
#stuExamGrade { min-width: 220px; }
input:focus, select:focus, button:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
.field-hint { font-size: 12px; color: var(--muted); }

.btn {
  font-size: 14px; font-weight: 700; cursor: pointer;
  border-radius: 2px; padding: 9px 14px; border: 1px solid var(--border);
  background: var(--surface-page); color: var(--ink);
  display: inline-flex; align-items: center; gap: 6px;
}
.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn.ghost { background: transparent; }
.btn.danger { background: #fff; color: var(--critical); border-color: var(--critical); }
.btn:hover { background: #e8e8e8; }
.btn.primary:hover { background: #000; }

/* students / rounds tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; }
.data-table th { color: var(--muted); font-weight: 600; font-size: 12px; }
.row-actions { display: flex; gap: 6px; }
.icon-btn { background: none; border: none; cursor: pointer; color: var(--muted); font-size: 13px; padding: 4px 6px; border-radius: 2px; }
.icon-btn:hover { background: var(--line); color: var(--ink); }
.empty-state { color: var(--muted); font-size: 13px; padding: 14px 0; }

/* exam upload + AI mapping import */
.upload-box {
  margin-top: 12px; padding: 14px; border: 1px dashed var(--border); border-radius: 2px;
  background: var(--surface-page); display: flex; flex-direction: column; gap: 6px; align-items: flex-start;
}
.upload-box.drag-over { border-color: var(--accent); border-style: solid; background: var(--accent-fill); }
.ai-import-box {
  margin-top: 10px; padding: 14px; border-radius: 2px;
  background: var(--accent-fill); display: flex; flex-direction: column; gap: 8px; align-items: flex-start;
}
.exam-thumb { max-width: 160px; max-height: 100px; border-radius: 2px; border: 1px solid var(--border); display: block; }

/* manual fallback disclosure */
details.manual-fallback { margin-top: 12px; }
details.manual-fallback summary {
  cursor: pointer; font-size: 13px; font-weight: 700; color: var(--ink-soft);
  padding: 6px 0; list-style: none;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.reset-summary-text { flex: 1; min-width: 140px; }
/* 학생별 채점 현황의 학생 한 줄 메모 — summary 오른쪽에 붙임, 클릭해도 펼침/접힘에 영향 없게 JS에서 stopPropagation 처리함 */
.student-memo {
  font-size: 12px; font-weight: 400; padding: 5px 8px; width: 160px; max-width: 45%;
  border: 1px solid var(--border); border-radius: 2px; background: var(--surface-card); color: var(--ink);
  cursor: text;
}
/* 메모 옆 완료 버튼 — summary 안에 있지만 클릭해도 펼침/접힘에 영향 없게 JS에서 stopPropagation 처리함 */
.btn-done-toggle {
  font-size: 12px; font-weight: 700; padding: 5px 10px; border-radius: 2px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface-page); color: var(--ink-soft); flex-shrink: 0;
}
.btn-done-toggle.is-done { background: var(--good-bg); color: var(--good); border-color: var(--good); }
details.manual-fallback summary::-webkit-details-marker { display: none; }
details.manual-fallback summary::before { content: '▸ '; }
details.manual-fallback[open] summary::before { content: '▾ '; }

/* 학생별 채점 현황 맨 위 — 담당 선생님 학생 중 완료/미완료 명단을 한눈에 보여주는 줄 */
.reset-roster-bar { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.reset-roster-group { font-size: 13px; padding: 8px 12px; border-radius: 2px; background: var(--surface-page); border: 1px solid var(--line); }
.reset-roster-group b { margin-right: 8px; }
.reset-roster-group.todo b { color: var(--accent); }
.reset-roster-group.done b { color: var(--good); }
.reset-roster-group span { color: var(--ink-soft); }

/* 학생별 채점 현황 — 반별 그룹 */
.reset-class-group { margin-top: 16px; }
.reset-class-group:first-child { margin-top: 0; }
.reset-class-title {
  font-size: 13px; font-weight: 700; color: var(--accent);  padding-bottom: 6px; margin-bottom: 6px; border-bottom: 1px solid var(--line);
}
/* 완료 표시된 학생 — 진행중 목록과 뚜렷이 구분되도록 위에 굵은 구분선 + 톤 다운 */
.reset-done-section { margin-top: 24px; padding-top: 16px; border-top: 2px solid var(--line); }
.reset-done-title { color: var(--good); }
details.manual-fallback.is-done summary { color: var(--muted); }
details.manual-fallback.is-done { opacity: 0.75; }

/* type rows (round editor) */
.type-rows { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.type-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.type-row input.type-name { max-width: 140px; }
.type-row input.type-range { flex: 1; min-width: 130px; }
.type-row input.type-unit { flex: 1; min-width: 150px; color: var(--ink-soft); }
.type-swatch { width: 12px; height: 12px; border-radius: 0; flex-shrink: 0; }
.type-unit-caption { font-size: 12px; color: var(--muted); }
.unit-group { font-size: 13px; margin-bottom: 6px; }
.unit-group:last-child { margin-bottom: 0; }
.unit-group b { font-size: 12px; color: var(--ink-soft); }

/* score grid */
.score-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
  gap: 6px; margin-top: 14px;
}
.qbtn {
  aspect-ratio: 1; border-radius: 2px; border: 1px solid var(--border);
  background: var(--surface-page); font-weight: 700; font-size: 13px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-soft);
}
.qbtn.wrong { background: var(--critical-bg); color: var(--critical); border-color: var(--critical); }
/* 재시험 버튼: 재시험지 번호(1,2,3…)를 크게, 원본 문항 번호는 괄호로 작게 아래에 */
.qbtn.qbtn-retest { flex-direction: column; gap: 1px; line-height: 1.1; }
.qbtn-retest .qbtn-orig { font-size: 9px; font-weight: 500; opacity: 0.65; }
.type-legend { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; font-size: 12px; color: var(--ink-soft); }
.type-legend .legend-item { display: flex; align-items: center; gap: 5px; }

/* report */
.sample-flag {
  font-size: 12px; color: var(--accent); background: var(--accent-fill);
  border: 1px solid var(--border); border-radius: 2px; padding: 6px 10px; width: fit-content;
}
.masthead {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 12px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 2px solid var(--ink);
}
.masthead .brand-line { display: flex; align-items: center; }
.masthead h2 { font-weight: 700; font-size: 22px; margin-top: 8px; }
.masthead .meta { text-align: right; font-size: 13px; color: var(--ink-soft); line-height: 1.6; }
.masthead .meta b { color: var(--ink); font-weight: 700; }
.masthead .meta .student-name-big { font-size: 26px; font-weight: 800; color: var(--ink); line-height: 1.3; }


/* KPI pills (등급/정답률/문항수/난이도/상승) — 5개가 항상 한 줄로, 아래로 밀려 내려가지 않게 */
.pill-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.pill-tile { background: var(--surface-card); border: 1px solid var(--border); border-radius: 2px; padding: 14px 16px;  min-width: 0; }
.pill-tag { display: inline-block; font-size: 12px; font-weight: 700; border-radius: 2px; padding: 3px 10px; color: #fff; margin-bottom: 10px; }
.pill-tile .pill-value { font-size: 30px; font-weight: 700; line-height: 1; }
.pill-tile .pill-value.up { color: var(--good); }
.pill-tile .pill-value.down { color: var(--critical); }
.pill-tile .pill-compare { font-size: 12px; color: var(--muted); margin-top: 6px; }
.pill-tile .pill-caption { font-size: 11px; color: var(--muted); margin-top: 8px; line-height: 1.5; }

/* 강점/취약 요약 */
.summary-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.summary-box { border-radius: 2px; padding: 12px 14px; }
.summary-box.good { background: var(--good-bg); }
.summary-box.watch { background: var(--warn-bg); }
.summary-box h3 { font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.summary-box.good h3 { color: var(--good); }
.summary-box.watch h3 { color: var(--warn-ink); }
.summary-box ul { margin: 0; padding-left: 18px; font-size: 13px; color: var(--ink-soft); line-height: 1.7; }
.summary-box .empty { font-size: 13px; color: var(--muted); }
@media (max-width: 480px) { .summary-cols { grid-template-columns: 1fr; } }

/* 단원별 학습성과 */
.unit-row { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.unit-row:last-child { border-bottom: none; }
.unit-name { flex: 0 0 150px; font-size: 13px; font-weight: 600; }
.unit-count { flex: 0 0 56px; font-size: 12px; color: var(--muted); }
.unit-bar-wrap { flex: 1; }
.unit-pct { flex: 0 0 44px; text-align: right; font-size: 13px; font-weight: 700; }

/* 난이도 */
.diff-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.diff-tile { text-align: center; padding: 10px; border-radius: 2px; background: var(--surface-page); border: 1px solid var(--border); }
.diff-tile .label { font-size: 12px; color: var(--muted); }
.diff-tile .value { font-size: 22px; font-weight: 700; margin-top: 4px; }

/* 역량 레이더 */
.radar-wrap { display: flex; justify-content: center; }
.radar-wrap svg { max-width: 360px; width: 100%; height: auto; }
.competency-legend { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 6px 16px; }
.competency-legend-item { font-size: 12px; color: var(--ink-soft); line-height: 1.5; }
.competency-legend-item b { color: var(--ink); }
@media (max-width: 480px) { .competency-legend { grid-template-columns: 1fr; } }

/* 선생님 의견 */
textarea.teacher-note {
  width: 100%; min-height: 260px; font-family: inherit; font-size: 14px; line-height: 1.7;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 2px; background: var(--surface-page); color: var(--ink);
  resize: vertical;
}
.print-only { display: none; }
.attitude-picker { margin-top: 10px; }
.attitude-group { margin: 10px 0; display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.attitude-group > b { font-size: 13px; color: var(--muted); }
.phrase-chip {
  font-family: inherit; font-size: 13px; line-height: 1.5; text-align: left; cursor: pointer;
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 2px; background: var(--surface-page); color: var(--ink);
  max-width: 100%;
}
.phrase-chip:hover { border-color: var(--accent); }
.phrase-chip.used { background: var(--good-bg); border-color: var(--good); color: var(--good); }

.chart-wrap { width: 100%; overflow-x: auto; }
.chart-wrap svg { width: 100%; height: auto; display: block; min-width: 420px; }
.gridline { stroke: var(--line); stroke-width: 1; }
.axis-label { fill: var(--muted); font-size: 11px; font-family: "Noto Sans KR", sans-serif; }
.area-fill { fill: rgba(58,58,58,0.08); }
.trend-line { fill: none; stroke: var(--brand-charcoal); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.pt { fill: var(--brand-charcoal); stroke: var(--surface-card); stroke-width: 2; }
.pt-hit { fill: transparent; cursor: pointer; }
.pt-label { font-size: 12px; font-weight: 700; fill: var(--ink); font-family: "Noto Sans KR", sans-serif; opacity: 0; transition: opacity .15s ease; pointer-events: none; }
.pt-group:hover .pt-label { opacity: 1; }
.pt-group .pt-label.always { opacity: 1; }
.week-label { font-size: 11px; fill: var(--ink-soft); font-family: "Noto Sans KR", sans-serif; }

.type-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; }
.type-card { background: var(--surface-card); border: 1px solid var(--border); border-radius: 2px; padding: 13px 14px;  display: flex; flex-direction: column; gap: 6px; }
.type-card .type-name { font-size: 13px; font-weight: 700; }
.type-card .type-unit { font-size: 11px; color: var(--muted); margin-top: -4px; }
.type-card .type-row2 { display: flex; align-items: baseline; justify-content: space-between; }
.type-card .type-pct { font-size: 21px; font-weight: 700; }
.bar-track { position: relative; height: 8px; border-radius: 2px; background: var(--line); margin-top: 6px; }
.bar-fill { height: 100%; border-radius: 2px; }
.badge { align-self: flex-start; font-size: 11px; font-weight: 700; border-radius: 2px; padding: 3px 9px; display: inline-flex; align-items: center; gap: 5px; }
.badge.good { color: var(--good); background: var(--good-bg); }
.badge.watch { color: var(--warn-ink); background: var(--warn-bg); }
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.comment { font-size: 14px; line-height: 1.75; color: var(--ink-soft); }
.comment b { color: var(--ink); }
.comment .tag { color: var(--accent); font-weight: 700; }
.comment .tag.watch { color: var(--warn-ink); }

.table-wrap { overflow-x: auto; }
table.report-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 520px; }
table.report-table th, table.report-table td { padding: 8px 10px; text-align: center; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.report-table th { color: var(--muted); font-weight: 600; font-size: 11px; }
table.report-table td:first-child, table.report-table th:first-child { text-align: left; color: var(--ink); font-weight: 600; }
table.report-table .unit-sub { display: block; font-size: 11px; color: var(--muted); font-weight: 400; }
table.report-table tr.total td { font-weight: 700; background: var(--accent-fill); }
table.report-table td.watch-cell { color: var(--warn-ink); font-weight: 700; }


/* toast */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: var(--surface-page); padding: 10px 18px; border-radius: 2px;
  font-size: 13px; opacity: 0; pointer-events: none; transition: all .2s ease; z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 560px) {
  .masthead { flex-direction: column; align-items: flex-start; }
  .masthead .meta { text-align: left; }
}

/* 리포트/PDF는 5칸이 항상 한 줄이어야 하지만(요청사항), 화면이 정말 좁을 땐(폰 등) 보기 편하게 2줄로 */
@media (max-width: 480px) {
  .pill-row { grid-template-columns: repeat(2, 1fr); }
}

/* PDF export capture mode (mirrors @media print, but toggled via JS for html2canvas) */
.exporting-pdf .no-print { display: none !important; }
.exporting-pdf .print-only { display: block !important; }
.exporting-pdf #reportOutput { background: var(--surface-page); padding: 16px; }
.exporting-pdf .card { box-shadow: none; }

@media print {
  .topbar, .no-print { display: none !important; }
  .print-only { display: block !important; }
  body { background: #fff; }
  #app { max-width: none; padding: 0; }
  .tab-panel { display: none !important; }
  .tab-panel#panel-report { display: flex !important; }
  .card { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
}

/* 보고서 요소별 "PDF 포함" 체크박스 — 끈 요소는 화면에서 흐리게, PDF/인쇄에서는 빠짐 */
[data-rkey] { position: relative; }
.rk-toggle { position: absolute; top: 6px; right: 8px; z-index: 2; display: inline-flex; align-items: center; gap: 2px; font-size: 11px; color: var(--muted); background: var(--surface-card); border: 1px solid var(--border); border-radius: 2px; padding: 1px 6px; cursor: pointer; }
.rk-toggle input { margin: 0; cursor: pointer; }
.rk-off > *:not(.rk-toggle) { opacity: 0.3; }
.exporting-pdf .rk-off { display: none !important; }
.exporting-pdf .pill-row { grid-template-columns: repeat(var(--pill-n, 5), 1fr); }
@media print {
  .rk-off { display: none !important; }
  .pill-row { grid-template-columns: repeat(var(--pill-n, 5), 1fr); }
}

/* 대문(첫 화면) / 교재 준비중 화면 — body 클래스(view-landing | view-catchu | view-textbook)로 한 화면만 보여줌 */
.landing, .textbook-view { display: none; min-height: 100vh; align-items: center; justify-content: center; padding: 24px 16px; box-sizing: border-box; }
.view-landing .landing { display: flex; }
.view-textbook .textbook-view { display: flex; }
.view-landing .topbar, .view-landing #app,
.view-textbook .topbar, .view-textbook #app { display: none; }
.landing-box { width: 100%; max-width: 560px; text-align: center; }
.landing-logo { display: flex; justify-content: center; margin-bottom: 18px; }
.landing-logo .logo-mark img.logo-icon { width: 44px; height: 44px; }
.landing-logo .logo-mark .wordmark { font-size: 30px; }
.landing-title { font-size: 24px; font-weight: 700; margin: 0 0 8px; }
.landing-sub { color: var(--ink-soft); font-size: 14px; margin: 0 0 18px; }
.landing-teacher { width: 100%; max-width: 360px; margin-bottom: 22px; font-size: 15px; padding: 11px 12px; }
.landing-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.landing-btn { display: flex; flex-direction: column; gap: 6px; align-items: center; justify-content: center; text-align: center; min-height: 130px; padding: 18px 14px; cursor: pointer; font-family: inherit; color: var(--ink); background: var(--surface-card); border: 1px solid var(--ink); border-radius: 2px; }
.landing-btn:hover { background: #e8e8e8; }
.landing-btn.primary { background: var(--brand-red); border-color: var(--brand-red); color: #fff; }
.landing-btn.primary:hover { background: #a60d26; }
.landing-btn-title { font-size: 18px; font-weight: 700; }
.landing-btn-sub { font-size: 13px; opacity: 0.85; line-height: 1.4; }
@media (max-width: 520px) { .landing-buttons { grid-template-columns: 1fr; } .landing-btn { min-height: 100px; } }
#topbarLogo { cursor: pointer; }
#topbarLogo:hover { opacity: 0.8; }

/* 교재 채점 및 분석 화면 */
.view-textbook .textbook-view { display: block; min-height: 0; padding: 0; }
.tb-topbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 14px 24px; background: var(--surface-card); border-bottom: 2px solid var(--ink); position: sticky; top: 0; z-index: 10; }
.tb-main { max-width: 1000px; margin: 0 auto; padding: 18px 16px 60px; display: grid; gap: 14px; text-align: left; }
.tb-empty .card { opacity: 0.6; }
.tb-group { margin-bottom: 10px; }
.tb-group-title { font-size: 13px; margin-bottom: 4px; }
.tb-chip { font-family: inherit; font-size: 13px; padding: 4px 9px; margin: 0 6px 6px 0; cursor: pointer; border: 1px solid var(--border); border-radius: 2px; background: var(--surface-page); color: var(--ink); }
.tb-chip:hover { background: var(--critical-bg); color: var(--critical); }
#tbDrop.drag-over { border-color: var(--accent); border-style: solid; background: var(--accent-fill); }

/* 교재 화면 개편: 선택 칸 + 왼쪽 교재 목록 + 탭 */
.tb-selectbar { display: flex; gap: 10px; flex-wrap: wrap; padding: 12px 24px; background: var(--surface-page); border-bottom: 1px solid var(--border); }
.tb-selectbar select { min-width: 140px; }
.tb-layout { display: grid; grid-template-columns: 260px 1fr; gap: 16px; max-width: 1280px; margin: 0 auto; padding: 16px; align-items: start; }
.tb-layout .tb-main { max-width: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.tb-side { position: sticky; top: 80px; background: var(--surface-card); border: 1px solid var(--border); border-radius: 2px; padding: 12px; max-height: calc(100vh - 100px); overflow-y: auto; }
.tb-side-title { margin: 0 0 8px; font-size: 15px; }
.tb-side-school-name { font-weight: 800; font-size: 14px; margin: 10px 0 4px; padding-bottom: 3px; border-bottom: 2px solid var(--ink); }
.tb-side-grade-name { font-size: 12px; color: var(--muted); font-weight: 700; margin: 8px 0 3px; }
.tb-side-sem { font-size: 12px; font-weight: 700; color: var(--brand-red); margin: 8px 0 3px 2px; }
.tb-side-empty { font-size: 12px; color: var(--muted); padding: 2px 4px; }
.tb-side-book { display: block; width: 100%; text-align: left; font-family: inherit; font-size: 13px; font-weight: 700; padding: 8px 10px; margin-bottom: 4px; cursor: pointer; background: var(--surface-page); border: 1px solid var(--border); border-radius: 2px; color: var(--ink); }
.tb-side-book span { display: block; font-size: 12px; font-weight: 400; color: var(--muted); margin-top: 2px; }
.tb-side-book:hover { filter: brightness(0.97); }
.tb-side-book.active { background: var(--brand-charcoal); border-color: var(--brand-charcoal); border-left: 5px solid var(--brand-red); color: #fff; }
.tb-side-book.active span { color: #d8d8d8; }
.tb-current { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 10px 24px; background: var(--brand-charcoal); color: #fff; }
.tb-cur-tag { font-size: 12px; font-weight: 700; background: var(--brand-red); color: #fff; padding: 2px 8px; border-radius: 2px; }
.tb-cur-book { font-size: 20px; font-weight: 700; }
.tb-cur-stu { font-size: 18px; font-weight: 700; }
.tb-cur-meta { font-size: 13px; color: #d8d8d8; }
.tb-cur-sep { width: 1px; height: 22px; background: #777; margin: 0 6px; }
.tb-tabs { margin-bottom: 0; }
.tb-panel { display: none; gap: 14px; }
.tb-panel.active { display: grid; }
.tb-nobook .tb-panel .card { opacity: 0.6; }
details.tb-chap { border: 1px solid var(--border); border-radius: 2px; margin-bottom: 8px; background: var(--surface-card); }
details.tb-chap > summary { display: flex; align-items: center; gap: 10px; cursor: pointer; padding: 10px 12px; list-style: none; }
details.tb-chap > summary::-webkit-details-marker { display: none; }
details.tb-chap > summary::before { content: '▶'; font-size: 11px; color: var(--muted); transition: transform .15s; }
details.tb-chap[open] > summary::before { transform: rotate(90deg); }
.tb-chap-name { font-weight: 700; font-size: 14px; }
.tb-chap-body { padding: 4px 12px 10px 28px; }
.tb-numline { font-size: 13px; color: var(--ink-soft); line-height: 1.7; }
@media (max-width: 860px) { .tb-layout { grid-template-columns: 1fr; } .tb-side { position: static; max-height: none; } }

/* 교재 화면: 제목줄과 선택 칸(초·중·고/학년/교재/학생)을 스크롤해도 위에 고정 */
.tb-sticky { position: sticky; top: 0; z-index: 20; background: var(--surface-page); box-shadow: 0 1px 0 var(--border); }
.tb-sticky .tb-topbar { position: static; border-bottom: none; padding: 14px 24px 10px; }
.tb-tabrow { padding: 0 24px; background: var(--surface-card); border-bottom: 2px solid var(--ink); }
.tb-side { top: 250px; max-height: calc(100vh - 270px); }
@media (max-width: 860px) { .tb-side { top: auto; max-height: none; } }

/* 대문의 학생 관리 링크 + 학생 관리 전용 화면 */
.landing-link { display: block; width: 100%; margin-top: 14px; padding: 12px 14px; font-family: inherit; font-size: 14px; font-weight: 600; color: var(--ink-soft); background: transparent; border: 1px dashed var(--border); border-radius: 2px; cursor: pointer; }
.landing-link:hover { background: var(--surface-card); color: var(--ink); }
.students-head { display: none; position: sticky; top: 0; z-index: 20; }
.view-students .students-head { display: flex; }
.view-students .topbar, .view-students .landing, .view-students .textbook-view { display: none; }
.view-students #app .tab-panel:not(#panel-students) { display: none !important; }
.view-students #app #panel-students { display: flex !important; }

.landing-auto { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 16px; font-size: 13px; color: var(--ink-soft); cursor: pointer; }
.landing-auto-hint { margin-top: 4px; text-align: center; }

/* 대문의 입학테스트 버튼(캐치유테스트 오른쪽)과 입학테스트 화면 */
.landing-box { max-width: 780px; }
.landing-buttons { grid-template-columns: repeat(3, 1fr); }
.landing-btn.entrance { background: var(--brand-charcoal); border-color: var(--brand-charcoal); color: #fff; }
.landing-btn.entrance:hover { background: #222; }
.topbar .ttl-entrance { display: none; }
.view-entrance .topbar .ttl-catchu { display: none; }
.view-entrance .topbar .ttl-entrance { display: inline; }
.view-entrance #tabNav [data-tab="example"] { display: none; }
@media (max-width: 700px) { .landing-buttons { grid-template-columns: 1fr; } }

/* 입학테스트 화면은 주차 없이 날짜(달력)만 사용 */
.view-entrance #scoreWeekWrap, .view-entrance #scoreWeekFixWrap { display: none; }
.view-entrance #tabNav [data-tab="retest"] { display: none; }
.view-entrance #scoreGradeSel, .view-entrance #scoreDateInput, .view-entrance #scoreDateHint { display: none; }
.view-entrance #tabNav [data-tab="rounds"] { margin-left: auto; }

/* 보고서 탭: 오른쪽에 보고서 모음 */
#app:has(#panel-report.active) { max-width: 1200px; }
.report-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 16px; align-items: start; }
.report-main { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.report-archive { position: sticky; top: 90px; max-height: calc(100vh - 110px); overflow-y: auto; }
.ra-list { display: flex; flex-direction: column; }
.ra-row { border-top: 1px solid var(--line); padding: 8px 2px; }
.ra-row.active { background: var(--accent-fill); }
.ra-name { font-weight: 700; font-size: 14px; }
.ra-name span { font-weight: 400; font-size: 12px; color: var(--muted); margin-left: 6px; }
.ra-sub { font-size: 12px; color: var(--ink-soft); margin: 2px 0 6px; }
.ra-actions { display: flex; gap: 6px; }
.ra-actions .btn { padding: 4px 10px; font-size: 12px; }
@media (max-width: 900px) { .report-layout { grid-template-columns: 1fr; } .report-archive { position: static; max-height: none; } }
@media print { .report-layout { display: block; } .report-archive { display: none; } }

/* 시험지 등록: 본시험지(왼쪽) · 재시험지(오른쪽)를 한 박스에 */
.reg-split { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 24px; align-items: start; }
.reg-col + .reg-col { border-left: 1px solid var(--line); padding-left: 24px; }
.reg-title { margin: 0 0 6px; font-size: 15px; font-weight: 700; }
@media (max-width: 900px) { .reg-split { grid-template-columns: 1fr; } .reg-col + .reg-col { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 16px; } }

/* 채점 입력: 주차를 펼쳐 놓은 목록 */
.week-pick { display: flex; align-items: flex-start; gap: 8px; margin-top: 10px; }
.week-pick > .field-hint { flex: none; padding-top: 7px; }
.week-list { display: flex; flex-wrap: wrap; gap: 6px; max-height: 118px; overflow-y: auto; }
.week-chip { border: 1px solid var(--border); background: var(--surface-page); color: var(--ink); padding: 5px 10px; font-size: 13px; cursor: pointer; border-radius: 2px; }
.week-chip small { margin-left: 5px; font-size: 11px; color: var(--muted); }
.week-chip:hover { background: var(--line); }
.week-chip.on { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 700; }
.week-chip.on small { color: #ddd; }
.week-fix { display: inline-flex; align-items: center; gap: 6px; }
.week-fix select { min-width: 250px; }

/* 채점 입력 · 시험지 업로드 현황: 업로드 칸 / 팝업 */
.ws-drop { margin: 6px 0 10px; padding: 10px; border: 1px dashed var(--border); background: var(--surface-page); font-size: 12px; color: var(--ink-soft); display: flex; flex-direction: column; gap: 8px; }
.ws-drop-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.ws-drop-btns .btn { padding: 4px 10px; font-size: 12px; }
#weeklyStatusCard.drop-hot { outline-offset: -2px; }
.ws-del { color: #b42318; }
.ws-modal { position: fixed; inset: 0; background: rgba(0, 0, 0, .45); display: flex; align-items: center; justify-content: center; z-index: 9999; padding: 16px; }
.ws-modal-box { background: #fff; width: 100%; max-width: 400px; padding: 20px; border: 1px solid var(--border); display: flex; flex-direction: column; gap: 14px; font-size: 14px; }
.ws-modal-box h3 { margin: 0; font-size: 16px; }
.ws-modal-file { font-size: 13px; color: var(--ink-soft); word-break: break-all; padding: 6px 8px; background: var(--surface-page); }
.ws-modal-sec { display: flex; flex-direction: column; gap: 6px; }
.ws-kind { display: flex; gap: 8px; }
.ws-kind label { flex: 1; display: flex; align-items: center; gap: 6px; padding: 10px; border: 1px solid var(--border); cursor: pointer; font-weight: 700; }
.ws-kind label:has(input:checked) { border-color: var(--ink); background: var(--accent-fill); }
.ws-modal-btns { display: flex; justify-content: flex-end; gap: 8px; }
.ws-modal-btns .btn:disabled { opacity: .4; cursor: not-allowed; }

.ws-analyze { margin: 0 0 8px; word-break: keep-all; }
.ws-analyze:empty { display: none; }
.ws-mode { display: flex; gap: 8px; align-items: flex-start; padding: 8px 10px; border: 1px solid var(--border); cursor: pointer; }
.ws-mode span { display: flex; flex-direction: column; gap: 2px; font-weight: 700; }
.ws-mode small { font-weight: 400; font-size: 12px; color: var(--muted); }
.ws-mode:has(input:checked) { border-color: var(--ink); background: var(--accent-fill); }

.ws-choices { display: flex; flex-direction: column; gap: 8px; }
.ws-bigbtn { display: flex; flex-direction: column; gap: 3px; align-items: flex-start; text-align: left; padding: 14px; border: 1px solid var(--border); background: var(--surface-page); font-size: 16px; font-weight: 700; cursor: pointer; color: var(--ink); }
.ws-bigbtn small { font-size: 12px; font-weight: 400; color: var(--muted); }
.ws-bigbtn:hover { border-color: var(--ink); background: var(--accent-fill); }
.ws-analyze:not(:empty) { font-weight: 700; color: var(--ink); padding: 8px 10px; background: var(--accent-fill); }

/* 시험지 파일을 끌고 오면 업로드 현황 카드 전체가 놓는 자리로 표시됨 */
#weeklyStatusCard.drop-hot { outline: 0; background: #f3fbf5; }
#weeklyStatusCard.drop-hot::after { content: "여기에 놓으세요"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(26, 127, 55, .14); border: 2px dashed #1a7f37; font-size: 18px; font-weight: 700; color: #1a7f37; pointer-events: none; z-index: 2; }

/* 채점 후 자동으로 만든 재시험지 PDF */
.rt-print { padding: 10px 12px; border: 1px solid var(--border); background: var(--accent-fill); display: flex; flex-direction: column; gap: 8px; }
.rt-print-btns { display: flex; gap: 8px; }
.rt-print-btns .btn { text-decoration: none; padding: 6px 14px; }

.rt-print-inline { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.rt-print-inline .btn { text-decoration: none; padding: 6px 12px; }

/* 로그인 후 처음 한 번 뜨는 자동 인쇄 설정 안내 */
.autoprint-banner { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 9998; max-width: 560px; margin: 0 auto; background: #fff; border: 2px solid var(--ink); padding: 14px 16px; font-size: 13px; line-height: 1.55; display: flex; flex-direction: column; gap: 10px; box-shadow: 0 4px 18px rgba(0, 0, 0, .25); }
.autoprint-btns { display: flex; gap: 8px; justify-content: flex-end; }

/* 대문: KMMS 앱 받기 */
.landing-app { margin-top: 10px; padding: 10px 14px; border: 1px solid var(--border); background: var(--surface-page); font-size: 13px; display: flex; flex-direction: column; gap: 2px; text-align: center; }
.landing-app a { font-weight: 700; color: var(--ink); }
.landing-app span { color: var(--muted); font-size: 12px; }

/* 재시험 탭 왼쪽: 오답 순위 (넓은 화면에서는 본문 왼쪽 여백에 띄움) */
#panel-retest { position: relative; }
#retestRankCard { padding: 12px; font-size: 12px; }
#retestRankCard h2 { font-size: 14px; }
.rk-ctrl { display: flex; gap: 6px; flex-wrap: wrap; }
.rk-ctrl select { flex: 1; min-width: 0; font-size: 12px; padding: 5px 6px; }
.rk-mine { display: block; margin: 6px 0; font-size: 12px; color: var(--ink-soft); }
.rk-sum { margin: 6px 0; }
.rk-head, .rk-row { display: grid; grid-template-columns: 18px 38px 1fr 34px 34px; gap: 5px; align-items: center; }
.rk-head { font-size: 11px; color: var(--muted); padding-bottom: 3px; border-bottom: 1px solid var(--border); }
.rk-head span:nth-child(4), .rk-head span:nth-child(5), .rk-row .rk-n, .rk-row .rk-pct { text-align: right; }
.rk-row { padding: 4px 0; border-bottom: 1px solid var(--line); }
.rk-rank { font-size: 11px; color: var(--muted); }
.rk-q { font-weight: 700; font-size: 13px; }
.rk-bar { display: block; height: 12px; background: var(--line); }
.rk-bar i { display: block; height: 100%; background: var(--ink); }
.rk-n { font-size: 12px; }
.rk-pct { font-size: 12px; font-weight: 700; }
.rk-more { margin-top: 8px; }
/* 오답 순위 카드: 재시험 탭에서는 본문 왼쪽에 카드 폭만큼 자리를 만들고(본문을 오른쪽으로 밀어 줌), 카드 폭은 창 크기에 맞춰 줄어듦.
   창이 아주 좁으면(900px 미만) 카드는 제목 한 줄로 접힘 */
:root { --rk-w: clamp(170px, 20vw, 260px); }
@media (min-width: 900px) {
  body:has(#panel-retest.active) #app { margin-left: max(calc((100vw - 900px) / 2), calc(var(--rk-w) + 24px)); margin-right: 0; }
  #retestRankCard { position: absolute; right: calc(100% + 10px); top: 0; width: var(--rk-w); padding: 6px; font-size: 10px; }
  #retestRankCard h2 { font-size: 12px; }
  #retestRankCard .card-sub { display: none; }
  #retestRankCard .rk-head, #retestRankCard .rk-row { grid-template-columns: 12px 30px 1fr 26px 30px; gap: 3px; }
  #retestRankCard .rk-head.rk-multi, #retestRankCard .rk-row.rk-multi { grid-template-columns: 12px 56px 1fr 26px 30px; }
  #retestRankCard .rk-n, #retestRankCard .rk-pct { font-size: 10px; }
  #retestRankCard .rk-q { font-size: 11px; }
  #retestRankCard .rk-bar { height: 8px; }
  #retestRankCard .rk-ctrl select { font-size: 10px; padding: 3px 4px; }
}
@media (min-width: 1520px) {
  :root { --rk-w: 280px; }
  #retestRankCard { padding: 12px; font-size: 12px; right: calc(100% + 14px); }
  #retestRankCard h2 { font-size: 14px; }
  #retestRankCard .card-sub { display: block; }
  #retestRankCard .rk-head, #retestRankCard .rk-row { grid-template-columns: 18px 38px 1fr 34px 34px; gap: 5px; }
  #retestRankCard .rk-head.rk-multi, #retestRankCard .rk-row.rk-multi { grid-template-columns: 18px 64px 1fr 34px 34px; }
  #retestRankCard .rk-n, #retestRankCard .rk-pct { font-size: 12px; }
  #retestRankCard .rk-q { font-size: 13px; }
  #retestRankCard .rk-bar { height: 12px; }
  #retestRankCard .rk-ctrl select { font-size: 12px; padding: 5px 6px; }
}
@media (max-width: 899px) {
  #retestRankCard { padding: 6px 10px; }
  #retestRankCard .card-sub { display: none; }
  #retestRankCard h2 { margin: 0; cursor: pointer; font-size: 13px; }
  #retestRankCard h2::before { content: '▸ '; }
  #retestRankCard.rk-open h2::before { content: '▾ '; }
  #retestRankCard:not(.rk-open) > *:not(h2) { display: none; }
  #retestRankCard.rk-open #rkBody { max-height: 240px; overflow-y: auto; }
}

.rk-row { cursor: pointer; }
.rk-row:hover { background: var(--accent-fill); }
.ws-modal-box.rk-modal { max-width: 760px; max-height: 90vh; overflow-y: auto; }
.rk-problem { min-height: 60px; }

.rk-q small { display: block; font-size: 10px; font-weight: 400; color: var(--muted, #888); white-space: nowrap; }
.rk-head.rk-multi, .rk-row.rk-multi { grid-template-columns: 18px 64px 1fr 34px 34px; }

.col-mode { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 10px; }
.seg-btn { border: 1px solid var(--border); background: transparent; color: inherit; border-radius: 8px; padding: 6px 12px; font: inherit; font-size: 13px; cursor: pointer; line-height: 1.25; text-align: left; }
.seg-btn small { display: block; font-size: 11px; opacity: .65; }
.seg-btn.active { border-color: var(--accent, #c8102e); background: var(--accent-fill, rgba(200,16,46,.08)); font-weight: 600; }

.ws-who { flex-basis: 100%; font-size: 11px; color: var(--muted); }
.drop-part .ws-who { margin-left: 8px; font-size: 11px; color: var(--muted); }

/* 현황판: 올린 사람은 "보기" 옆에 이어 붙이고, 자리가 모자랄 때만 다음 줄로 */
#weeklyStatusCard .ws-who { flex-basis: auto; white-space: nowrap; }

/* 이번 주 시험지 업로드 현황 카드: 채점 입력 탭에서 본문 왼쪽에 카드 폭만큼 자리를 만들고(본문을 오른쪽으로 밀어 줌), 카드 폭은 창 크기에 맞춰 줄어듦.
   창이 아주 좁으면(900px 미만) 제목 한 줄로 접힘 (누르면 펼침) */
:root { --ws-w: clamp(220px, 22vw, 320px); }
@media (min-width: 900px) {
  body:has(#panel-score.active #weeklyStatusCard:not([style*="none"])) #app { margin-left: max(calc((100vw - 900px) / 2), calc(var(--ws-w) + 24px)); margin-right: 0; }
  #weeklyStatusCard { position: absolute; right: calc(100% + 10px); top: 0; width: var(--ws-w); }
  #weeklyStatusCard .ws-badge { min-width: 0; padding: 2px 7px; font-size: 11px; }
  #weeklyStatusCard .ws-name { width: auto; white-space: nowrap; }
  #weeklyStatusCard .ws-row { flex-wrap: wrap; gap: 4px; }
}
@media (max-width: 899px) {
  #weeklyStatusCard h2 { margin: 0; cursor: pointer; }
  #weeklyStatusCard h2::before { content: '▸ '; }
  #weeklyStatusCard.ws-open h2::before { content: '▾ '; }
  #weeklyStatusCard:not(.ws-open) > *:not(h2) { display: none; }
  #weeklyStatusCard.ws-open #weeklyStatusBody { max-height: 360px; overflow-y: auto; }
}