:root{--bg:#fbf7f2;--card:#fff;--ink:#2a211c;--sub:#6b5d54;--line:#e6dcd2;--accent:#b8321f;--accent-ink:#fff;--soft:#f6ebe4}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif;line-height:1.65;font-size:16px}
a{color:var(--accent)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header.site{border-bottom:1px solid var(--line);background:var(--card)}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding-top:12px;padding-bottom:12px}
.brand{font-weight:800;text-decoration:none;color:var(--ink);font-size:18px}
nav a{margin-left:14px;font-size:14px;color:var(--sub);text-decoration:none}
nav a:first-child{margin-left:0}
nav a:hover,nav a:focus{color:var(--accent);text-decoration:underline}
main{padding:24px 0 48px}
h1{font-size:26px;line-height:1.3;margin:0 0 8px}
h2{font-size:20px;margin:32px 0 10px}
h3{font-size:17px;margin:20px 0 6px}
.lead{color:var(--sub);margin:0 0 20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;margin:16px 0}
fieldset{border:0;padding:0;margin:0 0 14px}
legend,label.block{font-weight:700;display:block;margin-bottom:6px}
.presets{display:flex;flex-wrap:wrap;gap:8px}
button,.btn{font:inherit;cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:8px;padding:10px 14px;min-height:44px}
button[aria-pressed="true"],button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #1d6fd6;outline-offset:2px}
input[type=number],select{font:inherit;width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);min-height:44px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hint{font-size:13px;color:var(--sub);margin:4px 0 0}
.err{color:var(--accent);font-weight:700;margin:8px 0 0}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{padding:9px 6px;border-bottom:1px solid var(--line);text-align:right;vertical-align:middle}
th:first-child,td:first-child{text-align:left}
thead th{font-size:13px;color:var(--sub);font-weight:600}
td input[type=number]{max-width:120px;margin-left:auto;display:block;padding:8px;text-align:right}
tfoot td{font-weight:800;border-bottom:0;font-size:17px}
.total{background:var(--soft);border-radius:10px;padding:14px;margin-top:12px;font-size:18px;font-weight:800}
.total small{display:block;font-weight:400;font-size:13px;color:var(--sub)}
.table-scroll{overflow-x:auto}
.src{font-size:13px;color:var(--sub)}
footer.site{border-top:1px solid var(--line);padding:20px 0 40px;font-size:13px;color:var(--sub)}
footer.site a{color:var(--sub);margin-right:12px}
ul.links{padding-left:18px}
@media (max-width:520px){.row{grid-template-columns:1fr}h1{font-size:22px}th,td{padding:8px 4px;font-size:14px}td input[type=number]{max-width:96px}}
@media print{header.site,footer.site,nav,.noprint{display:none}body{background:#fff}.card{border:0;padding:0}}