/*
 * 받을돈 — 깔끔한 금융앱 테마
 * 흰 배경 + 연회색 카드, 큰 숫자, 포인트 색은 초록(--accent) 하나. 빨강(--danger)은 문제 표시에만.
 */
:root {
  --page: #ffffff;
  --card: #f4f5f7;
  --field: #ffffff;
  --text: #191f28;
  --sub: #4e5968;
  --faint: #8b95a1;
  --line: #e5e8eb;
  --accent: #00875a;
  --accent-hover: #00744d;
  --on-accent: #ffffff;
  --accent-soft: #e3f5ec;
  --danger: #d93036;
  --danger-soft: #fdecec;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 22px;
  color-scheme: light;
}
/* 다크 모드: <html data-theme="dark">. 처음에는 기기 설정을 따르고, 헤더의 Light/Dark 버튼으로 바꿀 수 있다 (layout.html).
   인쇄(정산 요청서)는 늘 밝은 색으로 한다. */
@media screen {
  :root[data-theme="dark"] {
    --page: #0e1013;
    --card: #1a1d21;
    --field: #24282d;
    --text: #f2f4f6;
    --sub: #b0b8c1;
    --faint: #7c8590;
    --line: #2c3036;
    --accent: #2fc98b;
    --accent-hover: #4fd9a0;
    --on-accent: #06281a;
    --accent-soft: #15322a;
    --danger: #ff6b6b;
    --danger-soft: #3a1f21;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -0.01em;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
a { color: var(--accent); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.num { font-variant-numeric: tabular-nums; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* 헤더 */
.site-header { background: var(--page); border-bottom: 1px solid var(--line); }
/* 넓은 화면에서만 헤더를 위에 고정한다. 휴대폰에서는 메뉴가 두 줄이라 화면을 가린다 */
@media (min-width: 860px) { .site-header { position: sticky; top: 0; z-index: 10; } }
.site-header .wrap { display: flex; align-items: center; gap: 24px; min-height: 60px; flex-wrap: wrap; }
.logo { font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.04em; }
.logo span { color: var(--accent); }
.site-nav { display: flex; gap: 2px 4px; flex-wrap: wrap; font-size: 15px; }
@media (min-width: 860px) { .site-nav { margin-left: auto; justify-content: flex-end; } }
.site-nav a { color: var(--sub); text-decoration: none; padding: 6px 10px; border-radius: 10px; font-weight: 500; }
.site-nav a:hover { background: var(--card); color: var(--text); }
.site-nav a[aria-current="page"] { color: var(--text); font-weight: 700; background: var(--card); }
.theme-toggle { display: inline-flex; gap: 2px; padding: 3px; border: 0; border-radius: 10px; background: var(--card); cursor: pointer; font: inherit; font-size: 13px; }
.theme-toggle span { padding: 3px 9px; border-radius: 8px; color: var(--faint); font-weight: 600; }
:root:not([data-theme="dark"]) .theme-toggle [data-t="light"],
:root[data-theme="dark"] .theme-toggle [data-t="dark"] { background: var(--field); color: var(--text); box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }
@media (max-width: 859px) {
  .theme-toggle { order: 2; margin-left: auto; }
  .site-nav { order: 3; }
}

/* 페이지 머리 */
.page-head { padding: 44px 0 26px; }
.page-head h1 { font-size: clamp(30px, 5.5vw, 42px); line-height: 1.25; letter-spacing: -0.04em; margin: 0 0 12px; font-weight: 800; }
.page-head p { margin: 0; color: var(--sub); max-width: 60ch; }
.updated { font-size: 14px; color: var(--faint) !important; margin-top: 12px !important; }
.verified { display: inline-flex; gap: 6px; align-items: center; margin-top: 10px !important; font-size: 13px; font-weight: 600; color: var(--accent) !important; background: var(--accent-soft); border-radius: 999px; padding: 5px 12px; }

/* 계산기 배치 */
.tool { display: grid; grid-template-columns: 1fr; gap: 16px; align-items: start; }
@media (min-width: 860px) {
  .tool { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 24px; }
  .tool .slip { position: sticky; top: 80px; }
}

/* 입력 카드 */
.form { background: var(--card); border-radius: var(--r-lg); padding: 24px; }
.field { margin-bottom: 20px; }
.field:last-child { margin-bottom: 0; }
.field > label, .field > .label { display: block; font-weight: 600; font-size: 14px; color: var(--sub); margin-bottom: 8px; }
.hint { font-size: 14px; color: var(--faint); margin: 8px 0 0; line-height: 1.55; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
@media (max-width: 420px) { .row3 { grid-template-columns: 1fr 1fr; } }

.input-unit { position: relative; display: flex; align-items: center; }
.input-unit input { padding-right: 52px; }
.input-unit .unit { position: absolute; right: 16px; color: var(--faint); font-size: 16px; pointer-events: none; }
input[type="number"], input[type="text"], input[type="date"], input[type="time"], input[type="month"], select {
  width: 100%;
  font: inherit; font-size: 19px; font-weight: 600; font-variant-numeric: tabular-nums;
  color: var(--text); background: var(--field);
  border: 1.5px solid transparent; border-radius: var(--r-sm);
  padding: 12px 16px; min-height: 54px;
  transition: border-color .15s;
}
input::placeholder { color: var(--faint); font-weight: 400; }
input:focus, select:focus { outline: none; border-color: var(--accent); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip {
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  border: 0; background: var(--field); color: var(--sub);
  padding: 7px 14px; border-radius: 999px; min-height: 36px;
}
.chip:hover { background: var(--accent-soft); color: var(--accent); }

/* 세그먼트: 회색 바탕에 흰 알약 */
.seg { display: flex; background: var(--line); border-radius: var(--r-sm); padding: 4px; gap: 4px; }
.seg label { flex: 1; text-align: center; cursor: pointer; font-size: 15px; font-weight: 600; color: var(--sub); padding: 9px 6px; border-radius: 9px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label:has(input:checked) { background: var(--field); color: var(--text); box-shadow: 0 1px 3px rgba(0, 0, 0, .12); }
.seg label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 0; }

.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; cursor: pointer; }
.check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }

/* 결과 카드: 큰 숫자가 주인공 */
.slip { background: var(--card); border-radius: var(--r-lg); padding: 24px; position: relative; }
.slip-title { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.slip-title h2 { font-size: 16px; margin: 0; font-weight: 700; color: var(--sub); letter-spacing: -0.02em; }
.slip-title small { color: var(--faint); font-size: 13px; }
.slip dl { margin: 0; }
.slip .line { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; font-size: 15px; }
.slip .line dt { color: var(--sub); }
.slip .line dd { margin: 0; font-variant-numeric: tabular-nums; font-weight: 700; text-align: right; }
.slip .line.minus dd { color: var(--faint); font-weight: 600; }
.slip .line.sub { padding-left: 12px; font-size: 14px; }
.slip .total { display: flex; flex-direction: column; gap: 2px; padding: 18px 0 2px; margin-top: 8px; border-top: 1px solid var(--line); }
.slip .total dt { font-weight: 600; font-size: 15px; color: var(--sub); }
.slip .total dd { margin: 0; font-size: clamp(34px, 8vw, 44px); font-weight: 800; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; line-height: 1.2; color: var(--text); }
.slip .note { font-size: 13px; color: var(--faint); margin: 14px 0 0; line-height: 1.6; }
.slip .flag { background: var(--danger-soft); color: var(--danger); font-size: 14px; font-weight: 600; border-radius: var(--r-sm); padding: 12px 14px; margin: 12px 0 0; line-height: 1.5; }
.slip .flag:empty { display: none; }
.slip-actions { display: flex; gap: 8px; margin-top: 18px; }
.btn { font: inherit; font-size: 15px; font-weight: 600; cursor: pointer; border: 0; background: var(--line); color: var(--text); border-radius: var(--r-sm); padding: 10px 16px; min-height: 44px; }
.btn:hover { filter: brightness(.96); }
@media (prefers-reduced-motion: no-preference) {
  .slip .total dd.bump { animation: bump .25s ease-out; }
  @keyframes bump { from { opacity: .35; transform: translateY(3px); } }
}

/* 광고 자리 (애드센스 승인 후 코드 삽입) */
.ad-slot { margin: 28px 0; min-height: 0; }
.ad-slot:empty { display: none; }

/* 검증기로 연결 */
.to-check { display: flex; justify-content: space-between; align-items: center; gap: 4px 16px; flex-wrap: wrap; margin: 40px 0 0; padding: 20px 24px; border-radius: var(--r-lg); background: var(--accent-soft); color: var(--text); text-decoration: none; }
.to-check strong { font-size: 17px; }
.to-check strong::after { content: " →"; color: var(--accent); }
.to-check span { font-size: 14px; color: var(--sub); }
.to-check:hover { filter: brightness(.98); }

/* 본문 글: 카드 없이 흰 바탕에 바로 */
.article { margin: 56px 0 28px; }
.article > * { max-width: 68ch; }
.article h2 { font-size: 24px; line-height: 1.35; letter-spacing: -0.035em; margin: 52px 0 12px; font-weight: 800; }
.article h2:first-child { margin-top: 0; }
.article h3 { font-size: 18px; margin: 28px 0 8px; letter-spacing: -0.02em; }
.article p, .article li { color: var(--sub); }
.article strong { color: var(--text); }
.article ul, .article ol { padding-left: 1.3em; }
.article li + li { margin-top: 4px; }
.formula { background: var(--card); color: var(--text); padding: 16px 18px; border-radius: var(--r-md); font-weight: 700; margin: 14px 0; }
.table-wrap { overflow-x: auto; margin: 14px 0; max-width: 100%; background: var(--card); border-radius: var(--r-md); padding: 6px 14px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; font-variant-numeric: tabular-nums; }
th, td { border-bottom: 1px solid var(--line); padding: 11px 8px; text-align: right; white-space: nowrap; color: var(--text); }
tbody tr:last-child td { border-bottom: 0; }
th:first-child, td:first-child { text-align: left; }
thead th { font-weight: 600; color: var(--faint); font-size: 13px; }
caption { text-align: left; color: var(--faint); font-size: 13px; padding: 8px 0 4px; }

.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 700; color: var(--text); padding: 16px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 9px; height: 9px; margin-top: 8px; border-right: 2px solid var(--faint); border-bottom: 2px solid var(--faint); transform: rotate(45deg); transition: transform .15s; }
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: 12px; }
.faq details p { margin: 0 0 16px; }

.sources { font-size: 13px; color: var(--faint) !important; }
.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; margin: 16px 0 0; padding: 0; list-style: none; max-width: none !important; }
.related a { display: block; padding: 16px 18px; border-radius: var(--r-md); text-decoration: none; color: var(--text); background: var(--card); }
.related a:hover { background: var(--accent-soft); }
.related strong { display: block; }
.related span { font-size: 14px; color: var(--sub); }

/* 계산기 목록 */
.tools-list { list-style: none; padding: 0; margin: 0 0 32px; display: grid; gap: 8px; }
.tools-list a { display: grid; grid-template-columns: 1fr auto; gap: 2px 16px; padding: 18px 20px; text-decoration: none; color: var(--text); background: var(--card); border-radius: var(--r-md); }
.tools-list a:hover { background: var(--accent-soft); }
.tools-list strong { font-size: 18px; letter-spacing: -0.03em; }
.tools-list span { color: var(--sub); font-size: 14px; grid-column: 1; }
.tools-list em { font-style: normal; grid-row: 1 / span 2; grid-column: 2; align-self: center; color: var(--accent); font-weight: 700; font-size: 15px; }
.tools-list em::after { content: " ›"; }

/* 404 */
.notfound { padding-top: 64px; }
.notfound-code { font-size: 15px; font-weight: 800; color: var(--accent) !important; margin: 0 0 6px !important; }
.notfound-actions { margin: 24px 0 36px; }
.notfound-actions .btn { display: inline-flex; align-items: center; min-height: 54px; padding: 0 24px; font-size: 16px; text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--on-accent); font-weight: 700; }
.btn-primary:hover { background: var(--accent-hover); filter: none; }

/* 푸터 */
.site-footer { border-top: 1px solid var(--line); margin-top: 56px; padding: 32px 0 56px; font-size: 13px; color: var(--faint); }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 10px; }
.site-footer a { color: var(--sub); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

@media print {
  .site-header, .site-footer, .ad-slot, .form, .slip-actions, .article, .to-check { display: none; }
}

/* ---------- 휴대폰 화면 다듬기 ---------- */
/* 입력칸(특히 날짜·시간)이 칸 너비보다 넓어져 화면이 옆으로 밀리지 않게 */
.row > *, .row3 > * { min-width: 0; }
input, select { min-width: 0; }
/* 입력 칸 묶음 안의 체크박스: .field > label의 block 배치를 덮어 상자와 글자가 겹치지 않게 */
.field > label.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; font-weight: 500; color: var(--text); margin-bottom: 0; }

@media (max-width: 859px) {
  /* 메뉴를 한 줄로 두고 옆으로 밀어서 보게 한다 (두 줄이면 첫 화면을 많이 가린다) */
  .site-header .wrap { gap: 0; min-height: 0; padding-top: 12px; }
  .logo { padding: 2px 0 4px; }
  .site-nav { flex-wrap: nowrap; overflow-x: auto; width: calc(100% + 32px); margin: 0 -16px; padding: 2px 48px 8px 12px; scrollbar-width: none;
    /* 오른쪽 끝을 흐리게 해서 옆으로 더 있다는 걸 보여준다 */
    -webkit-mask-image: linear-gradient(to right, #000 85%, transparent); mask-image: linear-gradient(to right, #000 85%, transparent); }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav a { flex: none; white-space: nowrap; padding: 6px 9px; }
}
@media (max-width: 600px) {
  /* 표는 글자와 여백을 줄여 되도록 화면 안에 들어오게 (넘치면 표만 옆으로 밀림) */
  table { font-size: 13px; }
  th, td { padding: 9px 5px; }
  /* 머리글과 설명 글 칸만 줄바꿈하고, 숫자 칸은 한 줄로 둔다 */
  th, .text-table td { white-space: normal; word-break: keep-all; }
  /* 시간·날짜 칸은 글자가 길어 좁은 칸에서 잘리지 않게 여백을 줄인다 */
  input[type="time"], input[type="date"] { padding: 12px 10px; font-size: 17px; }
  input[type="date"] { padding: 12px 8px; font-size: 16px; }
  input[type="time"]::-webkit-calendar-picker-indicator, input[type="date"]::-webkit-calendar-picker-indicator { margin-left: 0; padding: 0; }
  thead th { font-size: 12px; }
  .table-wrap { padding: 4px 6px; }
  th, td { padding-left: 4px; padding-right: 4px; }
  /* 열이 5개 이상인 표는 글자를 한 단계 더 줄인다 */
  table:has(th:nth-child(5)) { font-size: 12px; }
}

/* 아이폰 Safari: 날짜·시간 칸이 자체 너비로 그려져 칸 밖으로 삐져나가고 글자가 가운데로 가는 것을 막는다 */
@supports (-webkit-touch-callout: none) {
  input[type="date"], input[type="time"], input[type="month"] { -webkit-appearance: none; appearance: none; display: block; width: 100%; max-width: 100%; }
}
input::-webkit-date-and-time-value { text-align: left; margin: 0; }