:root{--bg:#f4f6f5;--card:#fff;--ink:#17201d;--muted:#5b6662;--line:#e2e6e3;--accent:#0f766e;--accent-2:#14b8a6;--accent-soft:#e3f4ef;--warn:#9a3412;--radius:16px;--shadow:0 1px 2px rgba(16,24,22,.04),0 6px 18px rgba(16,24,22,.06);font-size:16px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Malgun Gothic","Noto Sans KR",sans-serif;line-height:1.7;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.wrap{max-width:780px;margin:0 auto;padding:0 18px}
.ico{width:1em;height:1em;flex:none}
/* 헤더: 모바일에서 한 줄로 고정, 카테고리는 가로 스크롤 칩 */
header.site{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(1.6) blur(10px);backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:14px;min-height:58px}
.logo{display:flex;align-items:center;gap:7px;font-weight:800;font-size:1.12rem;letter-spacing:-.02em;text-decoration:none;color:var(--ink);flex:none}
.logo-t{color:var(--ink)}.logo-t span{color:var(--accent)}
.logo .logo-ic{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:18px}
nav.cats{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;margin-left:auto;padding:4px 0;-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);mask-image:linear-gradient(90deg,#000 88%,transparent)}
nav.cats::-webkit-scrollbar{display:none}
nav.cats a{flex:none;text-decoration:none;color:var(--muted);font-size:.9rem;font-weight:600;padding:5px 12px;border-radius:999px;white-space:nowrap}
nav.cats a:hover{color:var(--c,var(--accent));background:var(--cs,var(--accent-soft))}
nav.cats a[aria-current]{color:var(--c);background:var(--cs)}
@media (min-width:700px){nav.cats{-webkit-mask-image:none;mask-image:none}}
/* 공통 타이포 */
.crumb{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--muted);margin:20px 0 6px}
.crumb a{color:var(--muted);text-decoration:none}
.cat-chip{display:inline-flex;align-items:center;gap:5px;color:var(--c)!important;background:var(--cs);border-radius:999px;padding:2px 10px 2px 8px;font-weight:700}
h1{font-size:1.7rem;line-height:1.32;letter-spacing:-.025em;margin:6px 0 10px}
h2{font-size:1.25rem;letter-spacing:-.02em;margin:40px 0 12px;padding-top:6px}
h2[id]{scroll-margin-top:72px}
h3{font-size:1.05rem;margin:22px 0 6px}
article h2{display:flex;align-items:center;gap:10px}
article h2::before{content:"";width:4px;height:1.05em;border-radius:4px;background:linear-gradient(var(--accent),var(--accent-2));flex:none}
.lead{color:var(--muted);margin:0 0 20px}
.stamps{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 14px}
.stamp{display:inline-flex;align-items:center;font-size:.78rem;font-weight:600;background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:3px 11px;margin:0;text-decoration:none}
/* 계산기 박스 */
.tool{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.tool::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.tool .grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tool .full{grid-column:1/-1}
.tool label{display:block;font-size:.9rem;font-weight:700;margin-bottom:6px}
.tool .hint{font-size:.8rem;color:var(--muted);font-weight:400}
.tool input[type=text],.tool input[type=number],.tool input[type=time],.tool input[type=date],.tool select{width:100%;min-height:50px;font-size:1.05rem;font-weight:600;padding:11px 14px;border:1.5px solid #d6dbd8;border-radius:12px;background:#fafbfa;color:var(--ink);transition:border-color .15s,box-shadow .15s,background .15s;font-family:inherit}
.tool select{-webkit-appearance:none;appearance:none;padding-right:40px;background:#fafbfa url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b6662' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center/18px}
.tool input:focus,.tool select:focus{outline:none;border-color:var(--accent);background-color:#fff;box-shadow:0 0 0 4px rgba(15,118,110,.14)}
.unit{position:relative}
.unit input{padding-right:46px}
.unit input[type=number]{-moz-appearance:textfield;appearance:textfield}
.unit input[type=number]::-webkit-inner-spin-button,.unit input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.unit em{pointer-events:none;position:absolute;right:14px;top:50%;transform:translateY(-50%);font-style:normal;color:var(--muted);font-size:.9rem;font-weight:600}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg label{font-weight:600;border:1.5px solid #d6dbd8;background:#fff;border-radius:999px;padding:8px 15px;cursor:pointer;margin:0;font-size:.92rem;transition:all .15s}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label:has(input:checked){background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(15,118,110,.25)}
.seg label:has(input:focus-visible){box-shadow:0 0 0 4px rgba(15,118,110,.2)}
.check{display:flex;gap:8px;align-items:center;font-weight:500!important}
.check input{width:18px;height:18px;accent-color:var(--accent)}
/* 결과 패널 */
.result{margin-top:20px;background:linear-gradient(160deg,#e9f7f3,#f6fbf9 60%);border:1px solid #cfe9e2;border-radius:16px;padding:18px}
.result:empty{display:none}
.result>h3:first-child{margin-top:0}
.big{font-size:2.1rem;font-weight:800;color:var(--accent);line-height:1.2;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.big small{font-size:1rem;color:var(--ink);font-weight:700;letter-spacing:0}
.sub{color:var(--muted);font-size:.9rem;margin-top:6px}
.result table{border-radius:10px;overflow:hidden;box-shadow:0 0 0 1px #dbe9e4}
table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.94rem;background:#fff}
th,td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
td{text-align:right;font-variant-numeric:tabular-nums}
table.data th{background:#f6f8f7;font-weight:700}
table.data td,table.data th{text-align:center}
tr.sum th,tr.sum td{font-weight:800;border-top:2px solid var(--ink)}
.scroll{overflow-x:auto}
.note{font-size:.85rem;color:var(--muted);background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent-2);border-radius:10px;padding:11px 14px;margin:14px 0}
.warn{border-left-color:var(--warn)}
article p{margin:10px 0}
article ul,article ol{padding-left:22px}
article li{margin:4px 0}
/* 자주 묻는 질문 */
details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0;margin:8px 0;transition:box-shadow .15s}
details[open]{box-shadow:var(--shadow)}
details summary{list-style:none;display:flex;align-items:center;gap:10px;font-weight:700;cursor:pointer;padding:14px 16px}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"Q";flex:none;display:grid;place-items:center;width:24px;height:24px;border-radius:7px;background:var(--accent-soft);color:var(--accent);font-size:.8rem;font-weight:800}
details summary::after{content:"";margin-left:auto;flex:none;width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .2s}
details[open] summary::after{transform:rotate(-135deg)}
details>p{margin:0;padding:0 16px 14px 50px;color:#36403c}
.sources li{font-size:.9rem}
/* 카드 */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:14px 0}
.card{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 14px;text-decoration:none;color:var(--ink);box-shadow:0 1px 2px rgba(16,24,22,.04);transition:transform .15s,box-shadow .15s,border-color .15s}
.card:hover{border-color:var(--c,var(--accent));box-shadow:var(--shadow);transform:translateY(-1px)}
.card:active{transform:scale(.99)}
.ic{display:grid;place-items:center;flex:none;width:42px;height:42px;border-radius:12px;background:var(--cs,var(--accent-soft));color:var(--c,var(--accent));font-size:21px}
.card .ct{flex:1;min-width:0}
.card b{display:block;line-height:1.35;margin-bottom:2px;letter-spacing:-.01em}
.card .ct span{display:block;font-size:.84rem;line-height:1.45;color:var(--muted)}
.chev{width:18px;height:18px;flex:none;color:#a7b0ac}
.card:hover .chev{color:var(--c,var(--accent))}
/* 홈 */
.hero{background:radial-gradient(120% 90% at 100% 0%,#2dd4bf 0%,transparent 55%),linear-gradient(140deg,#0b5e57,#0f766e 55%,#139a8c);color:#fff;padding:34px 0 30px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-60px;bottom:-80px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.07)}
.hero .wrap{position:relative;z-index:1}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:3px 11px;margin:0 0 12px}
.hero h1{font-size:1.85rem;line-height:1.28;margin:0 0 10px;color:#fff}
.hero-desc{margin:0 0 18px;color:rgba(255,255,255,.86);font-size:.95rem;line-height:1.65}
.quick{display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.quick span{font-size:.8rem;font-weight:700;color:rgba(255,255,255,.75);margin-right:2px}
.quick a{font-size:.88rem;font-weight:700;color:#0b5e57;background:#fff;border-radius:999px;padding:6px 13px;text-decoration:none;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:-16px 0 8px;position:relative;z-index:2}
.cat-grid a{display:flex;flex-direction:column;align-items:center;gap:4px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 6px 11px;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .15s}
.cat-grid a:hover{transform:translateY(-2px);border-color:var(--c)}
.cat-grid .ic{width:44px;height:44px;border-radius:14px}
.cat-grid b{font-size:.95rem}
.cat-grid small{font-size:.74rem;color:var(--muted);margin-top:-4px}
@media (min-width:700px){.cat-grid{grid-template-columns:repeat(6,1fr)}}
.cat-sec{margin-top:30px}
.sec-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:-4px}
.sec-h h2{display:flex;align-items:center;gap:9px;margin:0;padding:0;font-size:1.15rem}
.sec-h .dot{width:10px;height:10px;border-radius:4px;background:var(--c)}
.sec-h a{display:flex;align-items:center;gap:1px;font-size:.84rem;font-weight:600;color:var(--muted);text-decoration:none}
.sec-h a .chev{width:15px;height:15px}
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:40px 0 0}
.trust div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}
.trust b{display:block;color:var(--accent);margin-bottom:4px}
.trust span{display:block;font-size:.85rem;color:var(--muted);line-height:1.55}
@media (max-width:600px){.trust{grid-template-columns:1fr}}
/* 카테고리 허브 */
.hub-hero{background:linear-gradient(180deg,var(--cs),var(--bg));padding:2px 0 8px}
.hub-hero .crumb{margin-top:18px}
.hub-hero .big-ic{width:56px;height:56px;border-radius:16px;font-size:28px;background:#fff;box-shadow:var(--shadow);margin:6px 0 12px}
.hub-hero .count{display:inline-block;font-size:.8rem;font-weight:700;color:var(--c);background:#fff;border-radius:999px;padding:3px 11px;margin:-6px 0 0}
/* 푸터 */
footer.site{margin-top:64px;background:#17201d;font-size:.85rem;color:#9eaaa5}
footer.site .wrap{padding:28px 18px 34px}
footer.site p{margin:6px 0}
footer.site p:first-child{display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:14px}
footer.site a{color:#d9e2de;text-decoration:none}
footer.site a.ghost{color:inherit}
body.embed{background:#fff}
body.embed .tool{border:none;box-shadow:none;padding:6px 2px}
body.embed .tool::before{display:none}
.embed-foot{font-size:.8rem;color:var(--muted);text-align:right;margin-top:8px}
@media (max-width:600px){
.wrap{padding:0 16px}
header.site .wrap{min-height:54px;gap:10px}
.logo{font-size:1.05rem}.logo .logo-ic{width:28px;height:28px;font-size:16px}
nav.cats a{padding:5px 10px;font-size:.88rem}
.tool .grid{grid-template-columns:1fr}
h1{font-size:1.45rem}
.hero h1{font-size:1.6rem}
.big{font-size:1.8rem}
}
.share{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px}
.share button{font:inherit;font-size:.88rem;font-weight:600;border:1px solid var(--accent);background:#fff;color:var(--accent);border-radius:999px;padding:6px 14px;cursor:pointer}
.share button:hover{background:var(--accent-soft)}
.share-msg{font-size:.82rem;color:var(--muted);flex-basis:100%}
.share-msg:empty{display:none}
.cmp-note{font-size:.84rem;color:var(--muted);margin:4px 0 0}
.data tr.me td{font-weight:700;background:var(--accent-soft)}
.up{color:var(--warn)}.down{color:var(--accent)}
@media (max-width:600px){
.tool{padding:14px}
table{font-size:.86rem}
th,td{padding:7px 6px}
table.data{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
table.data th,table.data td{white-space:nowrap}
}

.stamp.verified{background:#ecfdf5;color:#047857;text-decoration:none}
.changes{padding-left:18px}.changes li{font-size:.92rem;margin:6px 0}
.changes .when{color:var(--muted);font-variant-numeric:tabular-nums}
.st{display:inline-block;font-size:.75rem;border-radius:999px;padding:1px 8px;white-space:nowrap}
.st.ok{background:#ecfdf5;color:#047857}.st.wait{background:#fff7ed;color:#c2410c}.st.none{background:#f1f5f9;color:#475569}
.tool input[type=date]{width:100%;font-size:1rem;padding:10px 12px;border:1px solid #cfd3cd;border-radius:10px;background:#fff;color:var(--ink)}
.ghost{color:inherit;text-decoration:none;cursor:text}
.data small.mo{font-size:.78rem;color:var(--muted);font-weight:400}
@media (max-width:600px){
table.couple{display:block;width:100%}
table.couple thead{display:none}
table.couple tbody{display:block}
table.couple tr{display:grid;grid-template-columns:1fr 1fr 1fr;gap:2px 10px;padding:10px 8px;border-bottom:1px solid var(--line)}
table.couple tr.me{background:var(--accent-soft)}
table.couple td{border:0;padding:0;text-align:left;font-size:.95rem;background:none!important}
table.couple td:first-child{grid-column:1/-1;font-weight:700;margin-bottom:4px}
table.couple td[data-l]::before{content:attr(data-l);display:block;font-size:.75rem;color:var(--muted);font-weight:400}
}
@media (max-width:380px){table.couple td{font-size:.8rem}table.couple tr{gap:2px 6px;padding:10px 4px}}
@media (max-width:340px){table.couple td{font-size:.74rem}table.couple tr{gap:2px 4px;padding:10px 2px}}
@media (max-width:600px){
table.pl th:nth-child(2),table.pl td:nth-child(2){display:none}
table.pl th,table.pl td{padding:8px 6px;font-size:.92rem}
table.pl .ext{display:none}
}
@media (max-width:360px){table.pl th,table.pl td{font-size:.78rem;padding:7px 3px}}
/* 터치 영역 넓히기 (모바일 권장 크기) */
footer.site p:first-child a{display:inline-block;padding:6px 0}
.sec-h a{padding:8px 0 8px 10px}
.crumb a{padding:4px 0}
.cat-grid small{font-size:.78rem}
/* 핵심 답 박스 (h1·lead 바로 아래, 빌드 때 계산한 숫자) */
.quick-ans{background:#fff;border:1px solid var(--line,#e5e7eb);border-left:4px solid var(--accent);border-radius:12px;padding:12px 14px 12px 16px;margin:0 0 18px}
.quick-ans .qa-h{margin:0 0 6px;font-size:.8rem;font-weight:800;color:var(--accent);letter-spacing:.02em}
.quick-ans ul{margin:0;padding-left:18px}
.quick-ans li{margin:4px 0;line-height:1.6;word-break:keep-all;overflow-wrap:anywhere}
/* 롱테일 링크 칩 */
.lt-links{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 18px}
.lt-links a{display:inline-block;padding:8px 14px;border-radius:999px;background:#e8effd;color:#1d4ed8;font-weight:700;font-size:.9rem;text-decoration:none}
h2.lt-calc{margin-top:26px}
@media (max-width:480px){table.lt th,table.lt td{padding:8px 5px;font-size:.84rem}table.lt small{font-size:.74rem}}
/* 사다리 타기 도구 */
.lad-btns{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px;margin:12px 0}
.lad-btn{min-height:52px;font-size:1rem;font-weight:700;text-align:left;padding:8px 12px;border:1.5px solid #d6dbd8;border-left-width:8px;border-radius:12px;background:#fafbfa;color:var(--ink);cursor:pointer;font-family:inherit}
.lad-btn.on{background:#eef7f1}
.lad-btn span{display:block;font-size:.85rem;font-weight:600;color:#4a5550}
.lad-ctl{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.lad-ctl button{min-height:48px;padding:0 16px;font-size:1rem;font-weight:700;border-radius:12px;border:1.5px solid #2f7d5b;background:#fff;color:#1f5e42;cursor:pointer;font-family:inherit}
.lad-svg{display:block;margin:8px auto;width:100%}