/* 세무 서식에서 가져온 화면: 서식 용지의 옅은 녹색, 먹색 글자, 도장 주홍은 경고에만. */
:root {
  --paper: #f9fbf7;
  --sheet: #ffffff;
  --ink: #16282c;
  --pencil: #5d6f73;
  --form: #1f7a55;
  --form-deep: #145c3f;
  --form-tint: #e1efe7;
  --form-line: #b9d3c5;
  --stamp: #c23b2a;
  --stamp-tint: #fbebe7;
  --font: 'IBM Plex Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  word-break: keep-all;
}
a { color: var(--form-deep); text-underline-offset: 3px; }
a:focus-visible, input:focus-visible, summary:focus-visible, label:focus-within {
  outline: 3px solid var(--form);
  outline-offset: 2px;
}
.wrap { max-width: 66rem; margin: 0 auto; padding: 0 1rem; }

/* 머리 */
.top { padding: 2.25rem 0 1.5rem; border-bottom: 3px double var(--form-line); }
.top h1 { margin: 0; font-size: clamp(1.75rem, 5.2vw, 2.75rem); line-height: 1.25; font-weight: 700; letter-spacing: -0.02em; }
.top p { margin: 0.75rem 0 0; max-width: 38rem; color: var(--pencil); }
.basis { font-size: 0.875rem; }

/* 두 칸: 적는 곳과 명세서 */
.work { display: grid; gap: 2rem; padding: 2rem 0 1rem; }
@media (min-width: 56rem) {
  .work { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 3rem; align-items: start; }
  .slip { position: sticky; top: 1rem; }
}
h2 { margin: 0 0 1rem; font-size: 1.125rem; font-weight: 700; }

/* 적는 곳: 서식의 칸처럼 밑줄만 둔다 */
.field { padding: 0.9rem 0; border-bottom: 1px solid var(--form-line); }
.field:first-of-type { border-top: 1px solid var(--form-line); }
.field > label, .field > .legend { display: block; font-weight: 500; }
.hint { display: block; margin-top: 0.15rem; font-size: 0.875rem; color: var(--pencil); line-height: 1.55; }
.amount { display: flex; align-items: baseline; gap: 0.5rem; margin-top: 0.4rem; }
.amount input {
  width: 100%; min-width: 0; padding: 0.35rem 0.25rem; border: 0; border-bottom: 2px solid var(--ink);
  background: transparent; color: var(--ink); font: inherit; font-size: 1.5rem; font-weight: 500;
  font-variant-numeric: tabular-nums; text-align: right; border-radius: 0;
}
.amount input::placeholder { color: #a9b6b8; font-weight: 400; }
.amount span { flex: none; color: var(--pencil); }
.choice { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-top: 0.5rem; }
.choice label {
  display: block; padding: 0.6rem 0.5rem; border: 1px solid var(--form-line); background: var(--sheet);
  text-align: center; cursor: pointer; font-variant-numeric: tabular-nums;
}
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.choice label:has(input:checked) { background: var(--form); border-color: var(--form); color: #fff; font-weight: 500; }
details.field > summary { cursor: pointer; font-weight: 500; list-style-position: outside; margin-left: 1.1rem; }
details.field[open] > summary { margin-bottom: 0.5rem; }

/* 명세서 */
.slip { background: var(--sheet); border: 1px solid var(--form-line); padding: 1.25rem 1.25rem 1.5rem; }
.slip h2 { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.slip h2 small { font-size: 0.8125rem; font-weight: 400; color: var(--pencil); }

/* 900만 원 자 */
.ruler { margin: 0.5rem 0 1.5rem; }
.ruler-bar { position: relative; display: flex; height: 2.25rem; border: 1px solid var(--ink); background:
  repeating-linear-gradient(90deg, transparent 0 calc(100% / 9 - 1px), var(--form-line) calc(100% / 9 - 1px) calc(100% / 9)); }
.ruler-bar i { display: block; height: 100%; transition: width 0.25s ease; }
.seg-savings { background: var(--form-deep); }
.seg-irp { background: var(--form); }
.ruler-bar::after { content: ''; position: absolute; left: calc(600 / 900 * 100%); top: -0.4rem; bottom: -0.4rem; border-left: 2px dashed var(--ink); }
.ruler-scale { position: relative; height: 1.5rem; font-size: 0.8125rem; color: var(--pencil); font-variant-numeric: tabular-nums; }
.ruler-scale span { position: absolute; top: 0.3rem; transform: translateX(-50%); white-space: nowrap; }
.ruler-scale span:first-child { transform: none; }
.ruler-scale span:last-child { transform: translateX(-100%); }
.ruler-key { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; margin: 0.6rem 0 0; padding: 0; list-style: none; font-size: 0.8125rem; color: var(--pencil); }
.ruler-key li::before { content: ''; display: inline-block; width: 0.7rem; height: 0.7rem; margin-right: 0.35rem; vertical-align: -0.05rem; border: 1px solid var(--ink); }
.ruler-key .k-savings::before { background: var(--form-deep); }
.ruler-key .k-irp::before { background: var(--form); }
.ruler-key .k-room::before { background: var(--sheet); }

/* 명세서 줄 */
.rows { margin: 0; }
.rows div { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 0.45rem 0; border-bottom: 1px dotted var(--form-line); }
.rows dt { color: var(--pencil); }
.rows dd { margin: 0; font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.rows .sum { border-bottom: 0; border-top: 1px solid var(--ink); margin-top: 0.25rem; padding-top: 0.6rem; }
.rows .sum dt { color: var(--ink); font-weight: 500; }
.total { margin: 0.75rem 0 0; padding: 1rem; background: var(--form-tint); border-top: 3px double var(--form-deep); }
.total p { margin: 0; }
.total .label { font-weight: 500; }
.total .figure { font-size: clamp(2rem, 8vw, 2.75rem); line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; color: var(--form-deep); }
.total .note { margin-top: 0.25rem; font-size: 0.875rem; color: var(--pencil); }

.alert { margin: 0.75rem 0 0; padding: 0.7rem 0.9rem; border-left: 4px solid var(--stamp); background: var(--stamp-tint); font-size: 0.9375rem; line-height: 1.6; }
.alert[hidden], .rows div[hidden] { display: none; }
.more { margin: 1rem 0 0; padding-top: 1rem; border-top: 1px solid var(--form-line); }
.more p { margin: 0; }
.more strong { font-variant-numeric: tabular-nums; }

/* 아래 설명 */
.below { padding: 1.5rem 0 3rem; display: grid; gap: 2.5rem; }
@media (min-width: 56rem) { .below { grid-template-columns: 1fr 1fr; gap: 3rem; } .below .wide { grid-column: 1 / -1; } }
.below p, .below li { max-width: 38rem; }
.below ul { margin: 0; padding-left: 1.1rem; }
.below li { margin-bottom: 0.4rem; }
table.later { width: 100%; max-width: 38rem; border-collapse: collapse; font-variant-numeric: tabular-nums; }
table.later th, table.later td { padding: 0.5rem 0; border-bottom: 1px dotted var(--form-line); text-align: right; white-space: nowrap; }
table.later th:first-child, table.later td:first-child { text-align: left; white-space: normal; color: var(--pencil); font-weight: 400; padding-right: 1rem; }
table.later thead th { border-bottom: 1px solid var(--ink); font-weight: 500; color: var(--ink); }
table.later .minus { color: var(--stamp); font-weight: 500; }
table.later .plus { color: var(--form-deep); font-weight: 700; }
.small { font-size: 0.875rem; color: var(--pencil); }

.foot { border-top: 3px double var(--form-line); padding: 1.25rem 0 2.5rem; font-size: 0.875rem; color: var(--pencil); }
.foot p { margin: 0 0 0.35rem; max-width: 44rem; }

/* 휴대폰용 결과 한 줄 */
.peek { position: fixed; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding: 0.65rem 1rem calc(0.65rem + env(safe-area-inset-bottom)); background: var(--ink); color: #fff; font-variant-numeric: tabular-nums; }
.peek span { font-size: 0.875rem; opacity: 0.85; }
.peek strong { font-size: 1.25rem; }
body { padding-bottom: 3.5rem; }
@media (min-width: 56rem) { .peek { display: none; } body { padding-bottom: 0; } }

@media (prefers-reduced-motion: reduce) { .ruler-bar i { transition: none; } }