/* 공통 스타일 — 모든 도구 페이지가 함께 씁니다 */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --ink: #1b1d22;
  --muted: #6b6f78;
  --line: #e4e2dc;
  --accent: #e8572a;
  --accent-soft: #fdeee8;
  --ok: #1f9d55;
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15161a; --card: #1e2026; --ink: #eceae4; --muted: #9a9ea8;
    --line: #2d3038; --accent: #ff7a4d; --accent-soft: #3a2219; --ok: #3ccf7f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  line-height: 1.6; word-break: keep-all;
}
a { color: var(--accent); }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px; }

header.site { padding: 18px 0 6px; }
header.site a.brand { font-weight: 800; color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
header.site a.brand span { color: var(--accent); }

h1 { font-size: clamp(26px, 6vw, 34px); line-height: 1.25; letter-spacing: -0.03em; margin: 14px 0 6px; }
.lead { color: var(--muted); margin: 0 0 20px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 16px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
label:first-child { margin-top: 0; }
.hint { font-weight: 400; color: var(--muted); font-size: 13px; }
input[type=text], input[type=number], input[type=date], input[type=password], select {
  width: 100%; font: inherit; font-size: 16px; padding: 12px 14px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink);
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row { grid-template-columns: 1fr; } }

button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 700; font-size: 16px; padding: 13px 20px; border-radius: 12px;
  border: 0; background: var(--accent); color: #fff; cursor: pointer; text-decoration: none;
}
button.ghost, .btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
button:disabled { opacity: .45; cursor: default; }
.btns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.btns > * { flex: 1 1 auto; }

.result { background: var(--accent-soft); border-radius: var(--radius); padding: 20px; margin-top: 18px; }
.result .big { font-size: clamp(28px, 8vw, 40px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.2; }
.result dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 12px 0 0; font-size: 14px; }
.result dt { color: var(--muted); }
.result dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

/* 광고 자리 — 애드센스 승인 후 이 안에 광고 코드를 넣으세요 */
.ad-slot { min-height: 0; margin: 16px 0; }

article.guide { padding: 8px 0 24px; }
article.guide h2 { font-size: 20px; letter-spacing: -0.02em; margin: 28px 0 8px; }
article.guide p, article.guide li { color: var(--ink); }
details { border-top: 1px solid var(--line); padding: 12px 0; }
details summary { font-weight: 600; cursor: pointer; }

footer.site { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
footer.site nav { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-bottom: 10px; }
footer.site a { color: var(--muted); }