:root {
  --bg: #f5f6f8;
  --card: #fff;
  --line: #e3e6ea;
  --txt: #1f2430;
  --muted: #6b7280;
  --accent: #2f6feb;
  --err: #c0392b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, "Segoe UI", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--txt);
}
.topbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 20px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--txt); text-decoration: none; font-size: 18px; }
nav { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 2px; }
nav .who { color: var(--muted); margin-right: 4px; font-size: 14px; }
.costchip { display: inline-flex; align-items: center; gap: 4px; margin-right: 14px; padding: 4px 10px; background: #eef2fb; color: var(--accent); border: 1px solid #d8e2f8; border-radius: 999px; font-size: 13px; text-decoration: none; white-space: nowrap; }
.costchip:hover { background: #e2ebfb; }
.inline { display: inline; }
.link { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 14px; }
main { max-width: 1080px; margin: 0 auto; padding: 24px 20px; }
h1 { font-size: 22px; margin: 0 0 16px; }
.muted { color: var(--muted); }
.err { color: var(--err); }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  text-decoration: none;
  color: var(--txt);
  transition: 0.15s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}
.card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(47, 111, 235, 0.12);
  transform: translateY(-1px);
}
.card.disabled { opacity: 0.55; pointer-events: none; }
.card .ico { font-size: 28px; }
.card .t { font-weight: 700; margin: 10px 0 4px; }
.card .d { font-size: 13px; color: var(--muted); }
.badge {
  display: inline-block;
  margin-top: 10px;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
}
.card-center {
  max-width: 360px;
  margin: 8vh auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
}
.form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--muted); }
.form input { padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 16px; }
.form textarea { padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 15px; font-family: inherit; resize: vertical; }
.btn { padding: 11px; background: var(--accent); color: #fff; border: none; border-radius: 8px; font-size: 15px; cursor: pointer; }
.btn:hover { background: #1f5fd6; }
.back { display: inline-block; margin-bottom: 12px; color: var(--accent); text-decoration: none; font-size: 14px; }
nav .link { margin-left: 14px; text-decoration: none; }
.tbl { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.tbl th, .tbl td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 14px; word-break: break-word; }
.tbl th { background: #fafbfc; color: var(--muted); font-weight: 600; }
.tbl tr:last-child td { border-bottom: none; }
.tbl .inline { display: inline; }
.tbl .link { margin: 0 4px 0 0; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.panel h2 { font-size: 16px; margin: 0 0 10px; }
.form-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.form-row select, .form-row input[type=time], .form-row input[type=email] { padding: 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 16px; }
.form-row input[type=email] { flex: 1 1 200px; }
.chk { display: flex; align-items: center; gap: 6px; font-size: 14px; }
.log { background: #0f172a; color: #d1d5db; padding: 12px; border-radius: 8px; font-size: 12px; overflow: auto; max-height: 240px; white-space: pre-wrap; word-break: break-word; }
details summary { cursor: pointer; margin-top: 8px; }

/* worklog 검토 항목 카드 */
.wl-item { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-bottom: 12px; background: #fff; }
.wl-item.low { background: #fff7e6; border-color: #f0d9a8; }
.wl-item.done { opacity: 0.65; }
.wl-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.wl-title { font-size: 16px; font-weight: 600; margin: 7px 0; color: var(--txt); word-break: break-word; }
.wl-memo { font-size: 14px; line-height: 1.5; color: var(--txt); white-space: pre-wrap; word-break: break-word; margin-bottom: 4px; }
.wl-item details { font-size: 13px; }
.wl-actions { display: flex; gap: 8px; margin-top: 12px; }
.btn-sm { padding: 8px 16px; font-size: 14px; border-radius: 8px; cursor: pointer; }
.btn-ok { background: var(--accent); color: #fff; border: none; }
.btn-ok:hover { background: #1f5fd6; }
.btn-no { background: #fff; color: var(--err); border: 1px solid var(--line); }
.btn-no:hover { background: #fdf0ef; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; white-space: nowrap; }
.tag-sched { background: #eef2fb; color: var(--accent); }
.tag-todo { background: #e9f7ef; color: #1a7f37; }
.tag-warn { background: #fde4c0; color: #9a6a00; }
.tag-done { background: #e9f7ef; color: #1a7f37; }
.tag-skip { background: #eee; color: #888; }

/* 단어장 편집(번호 + 용어칸 + 설명칸) */
.gl-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.gl-num { flex: 0 0 28px; text-align: right; color: var(--muted); font-size: 13px; }
.gl-term { flex: 0 0 200px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }
.gl-desc { flex: 1 1 auto; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }
@media (max-width: 600px) {
  .gl-row { flex-wrap: wrap; }
  .gl-num { flex: 0 0 20px; }
  .gl-term, .gl-desc { flex: 1 1 100%; }
}

/* 모바일 최적화 (스마트폰 위주 사용) */
@media (max-width: 600px) {
  main { padding: 16px 14px; }
  h1 { font-size: 20px; }
  .brand { font-size: 16px; }
  .panel { padding: 14px; }
  .panel h2 { font-size: 15px; }
  .tbl th, .tbl td { padding: 9px 8px; font-size: 13px; }
  .card-center { margin: 4vh auto; padding: 22px 18px; }
  .grid { gap: 12px; }
  nav .link { margin-left: 10px; }
  .costchip { margin-right: 8px; }
  .form-row { gap: 8px; }
  .form-row select, .form-row input[type=time] { flex: 1 1 auto; }
  .form-row .btn { width: 100%; }
}