/* ===== 공용 디자인 시스템 (모든 계산기가 이 파일을 공유) ===== */
:root{
  --bg:#F5F6F8; --surface:#FFFFFF; --ink:#16202E; --muted:#5C6B7A;
  --line:#E5E9EE; --teal:#0E9E8E; --teal-deep:#0A7A6E; --teal-soft:#E6F5F2;
  --shadow:0 1px 2px rgba(22,32,46,.04),0 8px 28px rgba(22,32,46,.06);
  --r:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Pretendard',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;
  -webkit-font-smoothing:antialiased;font-feature-settings:"tnum";
}
a{color:inherit;text-decoration:none}
.wrap{max-width:680px;margin:0 auto;padding:0 18px}

/* 상단 사이트 네비 (계산기 간 이동 = 내부링크 = SEO 핵심) */
.nav{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav-inner{max-width:680px;margin:0 auto;padding:13px 18px;display:flex;align-items:center;gap:18px;overflow-x:auto}
.logo{font-weight:800;font-size:16px;letter-spacing:-.02em;white-space:nowrap;color:var(--ink)}
.logo span{color:var(--teal)}
.nav-links{display:flex;gap:16px;white-space:nowrap}
.nav-links a{font-size:13.5px;font-weight:600;color:var(--muted);transition:color .15s}
.nav-links a:hover,.nav-links a.active{color:var(--teal-deep)}

/* 헤더 */
header{padding:30px 0 4px;text-align:center}
.badge{display:inline-block;font-size:12px;font-weight:700;color:var(--teal-deep);
  background:var(--teal-soft);padding:5px 12px;border-radius:999px;margin-bottom:13px}
h1{font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.25}
header p{color:var(--muted);font-size:14px;margin-top:8px}

/* 광고 슬롯 */
.ad-slot{margin:18px 0;min-height:90px;border:1px dashed var(--line);border-radius:12px;
  display:flex;align-items:center;justify-content:center;color:#AEB7C0;font-size:12px;background:#FBFCFD}

/* 카드 / 입력 */
.card{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);
  padding:26px 22px;margin-top:20px;border:1px solid var(--line)}
.field{margin-bottom:16px}
label{display:block;font-size:14px;font-weight:700;margin-bottom:9px}
.input-row{position:relative}
.input-row .unit{position:absolute;right:16px;top:50%;transform:translateY(-50%);
  color:var(--muted);font-weight:600;font-size:15px;pointer-events:none}
input[type=text],input[type=date]{
  width:100%;font-size:20px;font-weight:700;font-family:inherit;
  padding:15px 56px 15px 16px;border:1.5px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);text-align:right;font-feature-settings:"tnum";transition:border-color .15s}
input[type=date]{padding-right:16px}
input:focus{outline:none;border-color:var(--teal)}

.quick{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}
.quick button{font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;
  background:#F2F4F6;color:var(--muted);border:none;border-radius:8px;padding:8px 12px;transition:all .15s}
.quick button:hover{background:var(--teal-soft);color:var(--teal-deep)}

.opts{display:flex;gap:18px;flex-wrap:wrap;margin-top:6px;align-items:center}
.opt{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.opt select{font-family:inherit;font-size:13px;font-weight:600;padding:7px 10px;
  border:1.5px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.chk{display:flex;align-items:center;gap:7px;cursor:pointer;font-size:13px;color:var(--muted)}
.chk input{width:17px;height:17px;accent-color:var(--teal)}

/* 결과 히어로 */
.result{margin-top:18px;background:linear-gradient(150deg,#0E9E8E,#0A7A6E);
  border-radius:var(--r);padding:28px 24px;color:#fff;text-align:center;box-shadow:0 10px 30px rgba(14,158,142,.25)}
.result .rlabel{font-size:13px;opacity:.85;font-weight:600}
.result .big{font-size:40px;font-weight:800;letter-spacing:-.02em;margin-top:4px;font-feature-settings:"tnum"}
.result .big .won{font-size:21px;font-weight:700;margin-left:3px}
.result .sub{font-size:13px;opacity:.85;margin-top:8px}

/* 공제/구성 막대 */
.bar{display:flex;height:12px;border-radius:999px;overflow:hidden;margin:22px 0 6px;background:#EEF1F4}
.bar span{display:block;height:100%}
.legend{margin-top:8px}
.li{display:flex;align-items:center;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.li .name{display:flex;align-items:center;gap:8px;color:var(--muted)}
.li .dot{width:9px;height:9px;border-radius:3px;flex-shrink:0}
.li .val{font-weight:700;font-feature-settings:"tnum"}
.li.total{border-bottom:none;padding-top:13px;font-size:15px}
.li.total .name{color:var(--ink);font-weight:700}
.li.total .val{color:var(--teal-deep)}

/* 콘텐츠 (애드센스 승인 + SEO) */
.content{margin-top:28px}
.content h2{font-size:19px;font-weight:800;margin:30px 0 12px;letter-spacing:-.01em}
.content p{font-size:14.5px;color:#3C4858;margin-bottom:12px}
.rate-table{width:100%;border-collapse:collapse;font-size:13.5px;margin:10px 0 4px;
  background:#fff;border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
.rate-table th,.rate-table td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line)}
.rate-table th{background:#F7F9FA;font-weight:700;color:var(--muted);font-size:12.5px}
.rate-table td:last-child,.rate-table th:last-child{text-align:right;font-feature-settings:"tnum"}
.note{font-size:12.5px;color:var(--muted);background:#F7F9FA;border-left:3px solid var(--teal);
  padding:12px 14px;border-radius:0 8px 8px 0;margin:14px 0}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:9px 0;overflow:hidden}
summary{padding:15px 16px;font-weight:700;font-size:14.5px;cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--teal);font-weight:800}
details[open] summary::after{content:"−"}
details p{padding:0 16px 15px;margin:0;font-size:14px;color:#3C4858}

/* 허브 홈 계산기 그리드 */
.hero-hub{text-align:center;padding:38px 0 10px}
.hero-hub h1{font-size:30px}
.hero-hub p{color:var(--muted);font-size:15px;margin-top:10px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.tool{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 20px;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}
.tool:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(22,32,46,.10)}
.tool .ico{font-size:24px}
.tool h3{font-size:16px;font-weight:800;margin:10px 0 5px}
.tool p{font-size:13px;color:var(--muted);line-height:1.5}
.tool.soon{opacity:.55}
.tool.soon .tag{display:inline-block;font-size:11px;font-weight:700;color:var(--muted);
  background:#F2F4F6;padding:3px 8px;border-radius:6px;margin-top:8px}

footer{margin:40px 0 30px;text-align:center;font-size:12px;color:#9AA5B0;line-height:1.7}
footer a{color:var(--muted);text-decoration:underline}

@media(max-width:480px){
  h1{font-size:23px}.hero-hub h1{font-size:25px}
  .result .big{font-size:34px}.grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}