:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1b1f24;
  --muted: #6b7280;
  --border: #e3e6ea;
  --primary: #2556d9;
  --primary-hover: #1d46b5;
  --danger: #c62828;
  --ok: #1b7f4b;
  --warn-bg: #fff7e0;
  --warn-text: #7a5a00;
  --radius: 10px;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  word-break: keep-all;
}

main { margin: 0 auto; padding: 24px 16px 64px; }
main.narrow { max-width: 480px; }
main.wide { max-width: 1120px; }
main.full { max-width: none; }

h1 { font-size: 1.4rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 0 0 12px; }
a { color: var(--primary); }
.muted { color: var(--muted); font-size: 0.9rem; }
.pre { white-space: pre-wrap; }
.center { text-align: center; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

/* 폼 */
form label { display: block; margin-bottom: 14px; font-weight: 600; font-size: 0.95rem; }
form label .muted { font-weight: 400; }
input:not([type=checkbox]):not([type=radio]), select, textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  font-weight: 400;
  background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: transparent; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px 2px; margin: 0 0 14px; }
legend { font-weight: 600; font-size: 0.95rem; padding: 0 4px; }

button, .button {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
button:hover, .button:hover { background: #f0f2f5; }
button.primary, .button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
button.primary:hover, .button.primary:hover { background: var(--primary-hover); }
main.narrow button.primary { width: 100%; padding: 14px; font-size: 1.05rem; }
button.danger { color: var(--danger); border-color: var(--danger); }
button.link { border: 0; background: none; padding: 0; color: var(--primary); font-weight: 400; }

.error { color: var(--danger); background: #fdecec; padding: 10px 12px; border-radius: 8px; }
.banner { background: var(--warn-bg); color: var(--warn-text); padding: 10px 14px; border-radius: 8px; font-size: 0.9rem; }

/* 고객 화면 */
.client-header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 14px 16px; text-align: center; }
.steps { display: flex; list-style: none; padding: 0; margin: 0 0 16px; gap: 6px; counter-reset: step; }
.steps li {
  flex: 1;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 4px solid var(--border);
  padding-top: 6px;
}
.steps li.done { border-color: var(--primary); }
.steps li.active { border-color: var(--primary); color: var(--text); font-weight: 700; }

.consent { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; margin-bottom: 10px; }
.consent summary { cursor: pointer; list-style: none; }
.consent summary label { display: inline; margin: 0; }
.consent pre { white-space: pre-wrap; font: inherit; font-size: 0.85rem; color: var(--muted); margin: 10px 0 0; }

.providers { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding-bottom: 12px; }
.providers legend { grid-column: 1 / -1; }
.provider { margin: 0; padding: 12px; border: 1px solid var(--border); border-radius: 8px; font-weight: 600; cursor: pointer; }
.provider:has(input:checked) { border-color: var(--primary); background: #eef3ff; }

.guide { padding-left: 20px; margin: 0 0 14px; }
.guide li { margin-bottom: 4px; }

/* 관리 화면 */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
}
.admin-header .brand { font-weight: 700; color: var(--text); text-decoration: none; }
.admin-header .brand span { color: var(--muted); font-weight: 400; margin-left: 6px; }
.admin-header form { margin: 0; }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar h1, .toolbar h2 { margin: 0; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row form { margin: 0; }
.row select { width: auto; margin: 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.grid .card { margin-bottom: 0; }
.grid + .card { margin-top: 16px; }
.form-card { max-width: 520px; }

.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 12px; }
.tabs a { padding: 6px 12px; border-radius: 999px; text-decoration: none; color: var(--muted); font-size: 0.9rem; }
.tabs a b { margin-left: 2px; }
.tabs a.active { background: var(--text); color: #fff; }

.search { display: flex; gap: 8px; margin-bottom: 12px; max-width: 420px; }
.search input { margin: 0; }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.card .table-wrap { border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { background: #fafbfc; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }
table.num td:nth-child(n+5), table.num th:nth-child(n+5) { text-align: right; font-variant-numeric: tabular-nums; }
td.refund { color: var(--ok); font-weight: 700; }
td.year-note { color: var(--muted); }
.raw-list { margin-top: 22px; }
.raw-list h3 { font-size: 1rem; margin: 0 0 8px; }
.raw-card { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; margin-bottom: 10px; }
dl.raw dd { word-break: break-all; }
td.year-note.failed { color: var(--danger); }
.empty { color: var(--muted); padding: 24px; text-align: center; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; background: #eef0f3; color: var(--muted); vertical-align: middle; }
.status-in_progress { background: #fff4d6; color: #8a6100; }
.status-collected { background: #e2ecff; color: #1f47b8; }
.status-reviewing { background: #efe5ff; color: #5b2bb5; }
.status-filed { background: #dff3ea; color: var(--ok); }
.status-refunded { background: var(--ok); color: #fff; }

dl.info, dl.timeline { display: grid; grid-template-columns: max-content 1fr; gap: 6px 20px; margin: 0 0 14px; }
dt { color: var(--muted); }
dd { margin: 0; }

textarea#sms { font-size: 0.9rem; margin-bottom: 10px; resize: vertical; }
.danger-zone { border-color: #f3c7c7; }

/* 의견 */
/* 오른쪽 의견 창: 열면 화면을 왼쪽으로 밀어서 보던 내용을 가리지 않습니다 */
:root { --feedback-w: 380px; }
.feedback-box summary {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 11;
  list-style: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}
.feedback-box summary::-webkit-details-marker { display: none; }
.feedback-box summary b { margin-left: 2px; color: var(--primary); }
.feedback-box .when-open, .feedback-box[open] .when-closed { display: none; }
.feedback-box[open] .when-open { display: inline; }
.feedback-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  width: var(--feedback-w);
  overflow-y: auto;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 16px rgba(0, 0, 0, 0.08);
  padding: 16px 16px 80px;
}
body:has(.feedback-box[open]) { margin-right: var(--feedback-w); }
.feedback-note { border-top: 1px solid var(--border); padding: 12px 0; font-size: 0.92rem; }
.feedback-list { max-width: 820px; }
.feedback-item header { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
.reply { border-left: 3px solid var(--primary); padding-left: 12px; margin: 8px 0 0; }
.feedback-item details { margin-top: 12px; }
.feedback-item details summary { cursor: pointer; color: var(--primary); font-size: 0.9rem; }
.feedback-item details form { margin-top: 10px; }
.feedback-new { background: #fff4d6; color: #8a6100; }
.feedback-doing { background: #e2ecff; color: #1f47b8; }
.feedback-done { background: #dff3ea; color: var(--ok); }

@media (max-width: 900px) {
  /* 좁은 화면에서는 밀지 않고 위에 덮습니다 */
  body:has(.feedback-box[open]) { margin-right: 0; }
  .feedback-panel { width: 100%; }
}

@media (max-width: 600px) {
  .card { padding: 18px; }
  .admin-header { padding: 12px 16px; }
}