/* seojinwon.com 공용 디자인 시스템
   index.html(랜딩)의 '서류·인장' 컨셉과 동일한 토큰을 사용한다.
   랜딩은 자체 인라인 CSS를 유지하고, 블로그·절차 등 하위 페이지가 이 파일을 쓴다. */

:root{
  --ink:#16233A;
  --ink-soft:#3E5470;
  --paper:#F5F6F3;
  --paper-deep:#EBEDE8;
  --line:#C9CEC6;
  --seal:#B4232A;
  --cta:#1C3D6E;
  --cta-hover:#122B50;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans KR',sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}
.serif{font-family:'Noto Serif KR',serif}
.mono{font-family:'IBM Plex Mono',monospace;letter-spacing:.08em}
a{color:var(--cta)}
img{max-width:100%}

/* ── 상단 바 ── */
.topbar{
  border-bottom:1px solid var(--line);
  background:var(--paper);
  position:sticky;top:0;z-index:50;
}
.topbar .wrap{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:14px;padding-bottom:14px;gap:10px;
}
.topbar .brand{font-weight:700;font-size:15px;white-space:nowrap}
.topbar .brand a{color:var(--ink);text-decoration:none}
.topbar .brand small{display:block;font-weight:400;font-size:12px;color:var(--ink-soft)}
.topbar nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.topbar nav a.nav-link{
  font-size:14px;font-weight:700;color:var(--ink);text-decoration:none;
  border:1px solid var(--line);padding:7px 14px;border-radius:2px;background:#fff;
  white-space:nowrap;
}
.topbar nav a.nav-link:hover{text-decoration:underline}
.topbar nav a.nav-link.active{border-color:var(--ink);background:var(--paper-deep)}
.topbar nav a.call{
  font-family:'IBM Plex Mono',monospace;font-size:14px;
  color:var(--ink);text-decoration:none;border:1px solid var(--ink);
  padding:7px 14px;border-radius:2px;white-space:nowrap;
}
.topbar nav a.call:hover{background:var(--ink);color:var(--paper)}

/* ── 공통 섹션 ── */
section{padding:64px 0}
.sec-label{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.18em;
  color:var(--ink-soft);margin-bottom:14px;
}
h2{
  font-family:'Noto Serif KR',serif;font-weight:700;
  font-size:clamp(22px,3.6vw,30px);line-height:1.4;
  margin-bottom:26px;word-break:keep-all;
}
.btn{
  display:inline-block;background:var(--cta);color:#fff;
  font-size:16px;font-weight:700;text-decoration:none;
  padding:16px 34px;border:none;border-radius:2px;cursor:pointer;
  transition:background .15s;
}
.btn:hover{background:var(--cta-hover)}
.btn:focus-visible{outline:3px solid var(--seal);outline-offset:2px}

/* ── 페이지 히어로(하위 페이지 공용) ── */
.page-hero{
  padding:56px 0 44px;border-bottom:1px solid var(--line);
}
.page-hero .eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.18em;
  color:var(--seal);margin-bottom:16px;
}
.page-hero h1{
  font-family:'Noto Serif KR',serif;font-weight:900;
  font-size:clamp(26px,4.6vw,38px);line-height:1.35;
  margin-bottom:14px;word-break:keep-all;
}
.page-hero p.lead{font-size:16px;color:var(--ink-soft);max-width:620px;word-break:keep-all}

/* ── 블로그 목록 ── */
.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin:34px 0 6px}
.chip{
  font-size:13.5px;font-weight:700;color:var(--ink);
  border:1px solid var(--line);background:#fff;border-radius:2px;
  padding:7px 14px;cursor:pointer;
}
.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.post-list{list-style:none;margin-top:22px}
.post-card{
  background:#fff;border:1px solid var(--line);
  padding:26px 28px;margin-bottom:16px;
}
.post-card .meta{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.1em;
  color:var(--ink-soft);margin-bottom:10px;display:flex;gap:14px;flex-wrap:wrap;
}
.post-card .meta .cat{color:var(--seal)}
.post-card h3{
  font-family:'Noto Serif KR',serif;font-size:20px;font-weight:700;
  line-height:1.45;word-break:keep-all;margin-bottom:10px;
}
.post-card h3 a{color:var(--ink);text-decoration:none}
.post-card h3 a:hover{border-bottom:2px solid var(--seal)}
.post-card .excerpt{font-size:15px;color:var(--ink-soft);word-break:keep-all;margin-bottom:12px}
.post-card .more{
  font-size:14px;font-weight:700;color:var(--cta);text-decoration:none;
}
.post-card .more:hover{text-decoration:underline}

/* ── 글 상세 ── */
.post{padding:56px 0 24px}
.post .post-meta{
  font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:.1em;
  color:var(--ink-soft);margin-bottom:18px;display:flex;gap:14px;flex-wrap:wrap;
}
.post .post-meta .cat{color:var(--seal)}
.post h1.post-title{
  font-family:'Noto Serif KR',serif;font-weight:900;
  font-size:clamp(25px,4.4vw,36px);line-height:1.4;
  margin-bottom:34px;word-break:keep-all;
  padding-bottom:24px;border-bottom:1px solid var(--line);
}
.post-body{font-size:17px;line-height:1.85;word-break:keep-all}
.post-body p{margin-bottom:22px}
.post-body h2{
  font-size:clamp(19px,3vw,24px);margin:44px 0 18px;padding-top:22px;
  border-top:1px solid var(--line);
}
.post-body h3{
  font-family:'Noto Serif KR',serif;font-size:18px;font-weight:700;
  margin:30px 0 12px;
}
.post-body ul,.post-body ol{margin:0 0 22px 22px}
.post-body li{margin-bottom:8px}
.post-body strong{font-weight:700}
.post-body blockquote{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--seal);
  padding:18px 22px;margin-bottom:22px;color:var(--ink-soft);font-size:15.5px;
}
.post-body table{width:100%;border-collapse:collapse;margin-bottom:22px;font-size:15px;background:#fff}
.post-body th,.post-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.post-body th{background:var(--paper-deep);font-weight:700}

/* ── 글 하단: 면책·저자·CTA·관련글 ── */
.disclaimer{
  margin:40px 0 0;padding:16px 18px;font-size:13px;color:var(--ink-soft);
  border:1px dashed var(--line);background:var(--paper-deep);word-break:keep-all;
}
.author-box{
  display:flex;gap:22px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);padding:26px 28px;margin-top:28px;
}
.author-box img{
  width:84px;height:104px;object-fit:cover;border:1px solid var(--line);flex-shrink:0;
}
.author-box .a-label{
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.16em;
  color:var(--ink-soft);margin-bottom:6px;
}
.author-box .a-name{
  font-family:'Noto Serif KR',serif;font-size:18px;font-weight:700;margin-bottom:4px;
}
.author-box .a-name .seal-tag{
  display:inline-block;font-size:12px;color:var(--seal);border:1.5px solid var(--seal);
  border-radius:3px;padding:1px 7px;margin-left:8px;vertical-align:2px;
  transform:rotate(-3deg);
}
.author-box .a-role{font-size:13.5px;color:var(--ink-soft);margin-bottom:8px}
.author-box .a-bio{font-size:14px;color:var(--ink-soft);word-break:keep-all}
.cta-box{
  background:var(--ink);color:var(--paper);
  padding:36px 32px;margin-top:28px;text-align:left;
}
.cta-box .c-label{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.18em;
  color:#B8C4D6;margin-bottom:12px;
}
.cta-box p.c-head{
  font-family:'Noto Serif KR',serif;font-size:clamp(18px,3vw,23px);font-weight:700;
  line-height:1.5;margin-bottom:8px;word-break:keep-all;
}
.cta-box p.c-sub{font-size:14.5px;color:#B8C4D6;margin-bottom:22px;word-break:keep-all}
.cta-box .btn{background:#fff;color:var(--ink)}
.cta-box .btn:hover{background:var(--paper-deep)}
.cta-box .c-tel{margin-top:14px;font-size:14px;color:#B8C4D6}
.cta-box .c-tel a{color:var(--paper);font-family:'IBM Plex Mono',monospace;text-decoration:none;font-weight:700}
.related{margin-top:44px}
.related .r-label{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.18em;
  color:var(--ink-soft);margin-bottom:14px;
}
.related ul{list-style:none}
.related li{border-top:1px solid var(--line);padding:13px 2px}
.related li:last-child{border-bottom:1px solid var(--line)}
.related a{
  color:var(--ink);text-decoration:none;font-weight:700;font-size:15.5px;
  font-family:'Noto Serif KR',serif;
}
.related a:hover{border-bottom:2px solid var(--seal)}
.related .r-date{
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--ink-soft);margin-left:10px;
}

/* ── 절차 페이지 ── */
.proc-steps{counter-reset:pstep;list-style:none;margin-top:10px}
.proc-step{
  background:#fff;border:1px solid var(--line);padding:28px 30px;
  margin-bottom:18px;position:relative;
}
.proc-step .p-no{
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--seal);
  letter-spacing:.16em;margin-bottom:10px;
}
.proc-step h3{
  font-family:'Noto Serif KR',serif;font-size:19px;font-weight:700;margin-bottom:10px;
  word-break:keep-all;
}
.proc-step p{font-size:15px;color:var(--ink-soft);word-break:keep-all;margin-bottom:12px}
.proc-step .prep{
  border-top:1px dashed var(--line);padding-top:12px;font-size:14px;word-break:keep-all;
}
.proc-step .prep b{font-size:13px;font-family:'IBM Plex Mono',monospace;letter-spacing:.1em;color:var(--ink-soft);display:block;margin-bottom:6px}
.proc-step .prep ul{list-style:none}
.proc-step .prep li{padding-left:16px;position:relative;color:var(--ink-soft);margin-bottom:4px}
.proc-step .prep li::before{content:"·";position:absolute;left:2px;font-weight:900;color:var(--seal)}

/* ── FAQ ── */
.faq{margin-top:8px}
.faq details{
  background:#fff;border:1px solid var(--line);margin-bottom:12px;
}
.faq summary{
  cursor:pointer;font-weight:700;font-size:15.5px;padding:18px 22px;
  word-break:keep-all;list-style-position:inside;
}
.faq details[open] summary{border-bottom:1px dashed var(--line)}
.faq .a{padding:16px 22px 20px;font-size:15px;color:var(--ink-soft);word-break:keep-all}

/* ── 푸터 ── */
footer{
  border-top:1px solid var(--ink);background:var(--paper-deep);
  padding:36px 0 44px;font-size:13.5px;color:var(--ink-soft);margin-top:40px;
}
footer b{color:var(--ink);font-size:14.5px}
footer .rows{display:grid;gap:4px;margin-top:10px}
footer a{color:var(--ink-soft)}
footer .fine{margin-top:18px;font-size:12px}
footer .f-nav{margin-top:12px;display:flex;gap:16px;flex-wrap:wrap}
footer .f-nav a{color:var(--ink);font-weight:700;text-decoration:none;font-size:13.5px}
footer .f-nav a:hover{text-decoration:underline}

/* ── 반응형 ── */
@media (max-width:720px){
  section{padding:48px 0}
  .page-hero{padding:44px 0 36px}
  .post{padding:44px 0 16px}
  .post-card{padding:22px 20px}
  .author-box{flex-direction:column}
  .author-box img{width:96px;height:118px}
  .cta-box{padding:28px 22px}
  .topbar .brand small{display:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}