/* ===== 기본 ===== */
* { box-sizing: border-box; }
:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --border: #e4e7ef;
  --border-strong: #d3d8e3;
  --text: #1a1d24;
  --text-muted: #5f6677;
  --text-subtle: #8a91a3;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #eff4ff;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --success: #16a34a;
  --warning: #d97706;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow: 0 2px 6px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --radius: 8px;
  --radius-lg: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Malgun Gothic", sans-serif;
  margin: 0;
  padding: 0 0 80px;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

/* ===== 헤더 ===== */
header {
  padding: 28px 32px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
header h1 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
header .sub { margin: 6px 0 0; color: var(--text-muted); font-size: 14px; }

/* ===== 탭 ===== */
.tabs {
  display: flex;
  gap: 2px;
  padding: 0 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.tab {
  background: transparent;
  border: 0;
  padding: 14px 18px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  font-weight: 500;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ===== 패널 ===== */
.panel { display: none; padding: 24px 32px; }
.panel.active { display: block; }

/* ===== 섹션 (h2 카드 효과) ===== */
h2 {
  font-size: 15px;
  margin: 28px 0 12px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
h2:first-child { margin-top: 4px; }
.desc { color: var(--text-muted); font-size: 13px; margin: 0 0 14px; line-height: 1.6; }
.hint { color: var(--text-subtle); font-size: 12px; }

/* ===== 입력 ===== */
.row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin: 8px 0 14px;
}
input[type=text],
input[type=number],
input[type=date],
select,
textarea {
  padding: 9px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input[type=text],
input[type=number],
select { min-width: 180px; }
input[type=date] { padding: 8px 11px; }
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
textarea {
  width: 100%;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 13px;
  resize: vertical;
  line-height: 1.5;
}

/* ===== 버튼 ===== */
button, .filebtn {
  padding: 8px 14px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  color: var(--text);
  font-family: inherit;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow-sm);
}
button:hover, .filebtn:hover {
  background: #f8fafc;
  border-color: #b8bfd0;
}
button:active { transform: translateY(0.5px); }
button.primary, .filebtn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
button.primary:hover, .filebtn.primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}
button.danger {
  color: var(--danger);
  border-color: #f3c8c4;
  background: #fff;
}
button.danger:hover {
  background: var(--danger-soft);
  border-color: #e8a39c;
}
.filebtn { display: inline-block; }

/* 작은 인라인 버튼 (행 안의 수정/삭제용) */
.grid td button,
.chips li button {
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  box-shadow: none;
}

/* ===== 칩 (잔존) ===== */
.chips { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0; }
.chips li {
  background: var(--primary-soft);
  color: var(--primary-hover);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chips li button {
  background: transparent;
  border: 0;
  padding: 0 2px;
  color: var(--primary-hover);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  box-shadow: none;
}

/* ===== 표 ===== */
.grid {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.grid th, .grid td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  text-align: left;
  vertical-align: middle;
}
.grid tbody tr:last-child td { border-bottom: 0; }
.grid th {
  background: #f7f9fc;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: none;
  letter-spacing: 0.01em;
}
.grid tbody tr:hover { background: #fafbfd; }
.grid tbody tr.editing,
.grid tbody tr.editing:hover {
  background: #fff8d6;
  box-shadow: inset 3px 0 0 var(--warning);
}

.tablewrap {
  overflow: auto;
  max-height: 360px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.tablewrap .grid { border: 0; box-shadow: none; border-radius: 0; overflow: visible; }
.tablewrap.nowrap th, .tablewrap.nowrap td { white-space: nowrap; }

/* 위아래 스크롤 시 헤더 행 고정 */
.tablewrap .grid thead th {
  position: sticky;
  top: 0;
  background: #f7f9fc;
  z-index: 3;
  box-shadow: inset 0 -1px 0 var(--border);
}

/* ===== 상태 배지 ===== */
.badge {
  display: inline-block;
  padding: 2px 9px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.02em;
  line-height: 1.6;
}
.badge-active  { background: #dcfce7; color: #166534; }
.badge-upcoming { background: #dbeafe; color: #1e40af; }
.badge-ended   { background: #fee2e2; color: #991b1b; }
.badge-primary { background: #ede9fe; color: #6d28d9; }
.badge-alt     { background: #fce7f3; color: #9d174d; }
.badge-gift    { background: #d1fae5; color: #047857; }

/* 적용 미리보기 셀 강조 */
.cell-bogo { background: #FFF59D; }
.cell-gift { background: #C8E6C9; }

/* ===== 드롭존 ===== */
.dropzone {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed #c7cfe0;
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 36px 20px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}
.dropzone:hover { background: var(--primary-soft); border-color: var(--primary); }
.dropzone.over { background: #dbe5ff; border-color: var(--primary); color: var(--primary-hover); }
.dz-text b { color: var(--primary); }

/* ===== 페이저 ===== */
.pager { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 10px 0 18px; }
.pager .pages { display: flex; gap: 4px; flex-wrap: wrap; }
.pager .pages button { min-width: 32px; padding: 5px 9px; font-size: 13px; }
.pager .pages button.current {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.pager .pages button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== 디테일/접기 ===== */
details {
  margin: 8px 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0;
  overflow: hidden;
}
details > *:not(summary) {
  margin: 10px 14px;
}
details summary {
  cursor: pointer;
  padding: 10px 14px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  list-style: none;
  user-select: none;
}
details summary::-webkit-details-marker { display: none; }
details summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 8px;
  color: var(--text-subtle);
  transition: transform 0.15s;
}
details[open] summary::before { transform: rotate(90deg); }

/* ===== 매핑 그리드 ===== */
.grid2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 12px 0;
}
.grid2 label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== 체크리스트 ===== */
.checklist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.checklist label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
  background: #fafbfd;
  color: var(--text);
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.checklist label:hover { background: #f0f4ff; }
.checklist label:has(input:checked) {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary-hover);
}
.checklist input { margin: 0; }

/* ===== 리포트 ===== */
.report {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  box-shadow: var(--shadow-sm);
}
.report b { color: var(--primary-hover); font-weight: 600; }

/* ===== 도움말 (ol, ul) ===== */
.panel ol, .panel ul { padding-left: 22px; line-height: 1.7; font-size: 14px; color: var(--text); }
.panel ol li, .panel ul li { margin: 4px 0; }

/* ===== 푸터 ===== */
footer { padding: 24px 32px; color: var(--text-subtle); font-size: 13px; }
footer a { color: var(--primary); text-decoration: none; }

/* ===== 유틸 ===== */
.hidden { display: none !important; }

/* ===== 반응형 ===== */
@media (max-width: 640px) {
  header { padding: 20px 18px 12px; }
  .tabs { padding: 0 10px; }
  .tab { padding: 12px 12px; font-size: 13px; }
  .panel { padding: 18px 18px; }
  input[type=text], input[type=number], select { min-width: 0; flex: 1 1 140px; }
  footer { padding: 20px 18px; }
}