:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --ink: #1c2230;
  --sub: #5b6478;
  --line: #e3e7ef;
  --brand: #2f6bff;
  --brand-ink: #1d4fd6;
  --ok: #0d9f6e;
  --warn: #d97706;
  --bad: #dc2626;
  --chip: #eef2ff;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }

.site-header {
  background: linear-gradient(135deg, #16213e 0%, #1d3461 55%, #2f6bff 130%);
  color: #fff;
  padding: 34px 0 22px;
}
.site-header h1 { margin: 0 0 6px; font-size: 26px; }
.site-header .subtitle { margin: 0 0 16px; color: #c9d6f5; font-size: 14px; }

.tabs { display: flex; gap: 6px; margin-top: 18px; overflow-x: auto; }
.tab {
  border: 1px solid var(--line); background: #fff; color: var(--sub);
  padding: 9px 16px; border-radius: 999px; font-size: 14px; cursor: pointer; white-space: nowrap;
}
.tab.active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 700; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin: 18px 0;
  box-shadow: 0 1px 2px rgba(20,30,60,.04);
}
.card h2 { margin: 0 0 8px; font-size: 19px; }
.card h2 small { color: var(--sub); font-weight: 500; font-size: 13px; }
.card h3 { font-size: 15px; margin: 20px 0 8px; }
.step-no {
  display: inline-block; background: var(--chip); color: var(--brand-ink);
  font-size: 13px; font-weight: 800; border-radius: 8px; padding: 3px 9px; margin-right: 6px;
  vertical-align: 2px;
}
.hint { color: var(--sub); font-size: 13.5px; margin: 4px 0 14px; }
.note { color: var(--sub); font-size: 12.5px; margin: 10px 0 0; }

.grid-2, .grid-3, .grid-4, .grid-5 { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 760px) {
  .grid-3, .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 460px) {
  .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
}

label { display: block; font-size: 13px; font-weight: 600; color: var(--ink); }
label small { display: block; font-weight: 400; color: var(--sub); margin-top: 3px; font-size: 11.5px; }
input, select {
  width: 100%; margin-top: 6px;
  padding: 10px 12px; font-size: 16px; /* 16px 미만이면 iOS 사파리가 포커스 시 화면을 확대함 */
  border: 1px solid var(--line); border-radius: 10px;
  background: #fbfcfe; color: var(--ink);
  font-variant-numeric: tabular-nums;
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 0; border-color: var(--brand); }
input[data-money] { text-align: right; }

.money-hint { font-size: 11.5px; color: var(--brand-ink); font-weight: 600; margin-top: 3px; display: block; min-height: 15px; }

.field-group { border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.field-group h3 { margin: 0 0 10px; font-size: 14px; color: var(--sub); }
.field-group label + label { margin-top: 10px; }
.total-box { background: #f2f6ff; border-color: #d6e2ff; }
.total-row {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 13px; color: var(--sub); padding: 9px 0; border-bottom: 1px dashed #d6e2ff;
}
.total-row:last-child { border-bottom: 0; }
.total-row output { font-size: 15px; font-weight: 800; color: var(--brand-ink); }

.field-static { display: flex; flex-direction: column; justify-content: flex-end; padding-bottom: 4px; }
.field-static .lbl { font-size: 13px; font-weight: 600; }
.field-static output { font-size: 18px; font-weight: 800; color: var(--brand-ink); margin-top: 8px; }

.inline-check { display: flex; align-items: center; gap: 8px; font-size: 13.5px; margin: 6px 0 12px; font-weight: 500; }
.inline-check input { width: auto; margin: 0; }

.result-strip {
  margin: 16px 0 10px;
  padding: 14px 16px;
  background: #f2f6ff; border: 1px solid #d6e2ff; border-radius: 12px;
  font-size: 14px;
}
.result-strip .big { font-size: 17px; font-weight: 800; color: var(--brand-ink); }
.result-strip .badges { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.badge {
  font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 700;
}
.badge.y { background: #d9f3e7; color: var(--ok); }
.badge.n { background: #f1f2f5; color: #9aa2b3; text-decoration: line-through; }

details { margin-top: 10px; }
summary { cursor: pointer; font-size: 13.5px; color: var(--brand-ink); font-weight: 600; }
details .table-scroll { margin-top: 10px; }

.table-scroll { overflow-x: auto; margin-top: 12px; -webkit-overflow-scrolling: touch; }
/* sticky 첫 컬럼과 border-collapse는 궁합이 나빠(스크롤 시 테두리 유실) separate 방식을 쓴다 */
table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 13.5px; }
th, td {
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 8px 10px; text-align: right;
  white-space: nowrap; font-variant-numeric: tabular-nums;
  background: var(--card);
}
thead tr:first-child th { border-top: 1px solid var(--line); }
th:first-child, td:first-child { border-left: 1px solid var(--line); }
th { background: #f2f4fa; color: var(--sub); font-size: 12.5px; text-align: center; }
td:first-child, th:first-child { text-align: left; }
/* 첫 컬럼 고정: 가로 스크롤 중에도 행 이름(지역 등)이 보이게 */
.table-scroll th:first-child, .table-scroll td:first-child {
  position: sticky; left: 0; z-index: 2;
  box-shadow: 2px 0 4px -2px rgba(20, 30, 60, 0.12);
}
td.center { text-align: center; }
td.em { font-weight: 800; color: var(--brand-ink); }
td.ok { color: var(--ok); font-weight: 700; }
td.bad { color: var(--bad); font-weight: 700; white-space: normal; min-width: 220px; }
td.muted { color: #a0a7b8; }
tr.highlight td { background: #f6faff; }

.summary-card { border: 2px solid var(--brand); }
.summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 8px; }
@media (max-width: 640px) { .summary-grid { grid-template-columns: 1fr; } }
.summary-box { border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.summary-box h3 { margin: 0 0 10px; font-size: 14px; color: var(--sub); }
.summary-box .amount { font-size: 24px; font-weight: 900; color: var(--brand-ink); }
.summary-box .row { display: flex; justify-content: space-between; font-size: 13px; padding: 5px 0; color: var(--sub); }
.summary-box .row b { color: var(--ink); }
.verdict { margin-top: 10px; font-size: 13px; font-weight: 700; border-radius: 8px; padding: 8px 10px; }
.verdict.ok { background: #d9f3e7; color: var(--ok); }
.verdict.bad { background: #fde8e8; color: var(--bad); }

.share-btn {
  margin-top: 16px; width: 100%;
  padding: 13px 16px; font-size: 15px; font-weight: 800;
  border: 0; border-radius: 12px; cursor: pointer;
  background: var(--brand); color: #fff;
}
.share-btn:hover { background: var(--brand-ink); }

.region-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 4px; }
.region-chips span {
  background: var(--chip); color: var(--brand-ink);
  font-size: 12.5px; font-weight: 600; padding: 4px 11px; border-radius: 999px;
}

blockquote {
  margin: 8px 0; padding: 12px 16px; border-left: 4px solid var(--brand);
  background: #f2f6ff; border-radius: 0 10px 10px 0; font-size: 13.5px; color: var(--sub);
}

.site-footer { padding: 26px 0 40px; color: #9aa2b3; font-size: 12px; text-align: center; }

/* ---------- 모바일 ---------- */
@media (max-width: 640px) {
  .wrap { padding: 0 12px; }
  .site-header { padding: 24px 0 18px; }
  .site-header h1 { font-size: 21px; }
  .site-header .subtitle { font-size: 13px; }
  .card { padding: 16px 14px; margin: 14px 0; }
  .card h2 { font-size: 17px; }
  .field-group { padding: 12px; }
  th, td { padding: 7px 8px; }
  table { font-size: 12.5px; }
  th { font-size: 11.5px; }
  .summary-box .amount { font-size: 21px; }
  .result-strip { padding: 12px; }
  .tabs { position: sticky; top: 0; z-index: 10; background: var(--bg); padding: 8px 12px; margin-top: 0; }
}