/* ============================================================
   쉴드광택 블로그 공통 스타일  (blog/blog.css)
   목록 페이지와 모든 글이 이 파일 하나를 공유합니다.
   ============================================================ */
:root{
  --ink:#14171B; --ink-2:#1C2026; --paper:#F3F4F1; --card:#FFFFFF;
  --line:#E4E6E1; --line-dark:#30353C; --text:#181B1F; --muted:#5C636B;
  --muted-dark:#9AA3AC; --aqua:#13C2C9; --aqua-deep:#0B8E94;
  --aqua-soft:rgba(19,194,201,.12);
  --shadow:0 1px 2px rgba(20,23,27,.04), 0 10px 28px rgba(20,23,27,.07);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; font-family:"Pretendard","Pretendard Variable",system-ui,sans-serif;
  background:var(--paper); color:var(--text); line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.mono{font-family:"JetBrains Mono",monospace;}
.wrap{max-width:760px;margin:0 auto;padding:0 24px;}
a{color:inherit;}

/* ---------- 상단 미니 헤더 ---------- */
.site-top{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 24px;max-width:1100px;margin:0 auto;
}
.site-top .brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;letter-spacing:-.01em;}
.site-top .brand img{width:30px;height:auto;}
.site-top nav a{margin-left:20px;text-decoration:none;color:var(--muted);font-size:14px;font-weight:600;}
.site-top nav a:hover{color:var(--ink);}

/* ---------- HERO (목록) ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;padding:70px 0 60px;
  background:radial-gradient(120% 120% at 80% 0%, #1F252C 0%, var(--ink) 55%);
}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(19,194,201,.6),transparent);}
.eyebrow{font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--aqua);font-weight:700;margin:0 0 18px;}
.hero h1{font-size:clamp(28px,4.6vw,42px);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:0 0 16px;}
.hero .lead{font-size:clamp(15px,2vw,17px);color:#D7DCE1;max-width:48ch;margin:0;}

/* ---------- 글 목록 ---------- */
.list{padding:48px 0 16px;}
.post-card{
  display:grid;grid-template-columns:160px 1fr;gap:20px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;margin-bottom:18px;text-decoration:none;color:inherit;
  box-shadow:var(--shadow);transition:border-color .18s ease,transform .18s ease;
}
.post-card:hover{border-color:rgba(19,194,201,.55);transform:translateY(-2px);}
.post-card .thumb{background:#11161B;min-height:130px;background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:center;color:#3C4650;font-size:12px;}
.post-card .body{padding:18px 20px 18px 0;}
.post-card .tag{display:inline-block;font-size:11px;font-weight:700;color:var(--aqua-deep);
  background:var(--aqua-soft);border-radius:6px;padding:3px 8px;margin-bottom:9px;}
.post-card h2{font-size:18px;font-weight:700;letter-spacing:-.01em;margin:0 0 7px;line-height:1.35;}
.post-card .date{font-size:12px;color:var(--muted-dark);font-weight:600;margin:0 0 9px;}
.post-card .summary{font-size:14px;color:var(--muted);margin:0;line-height:1.6;}
@media(max-width:560px){.post-card{grid-template-columns:1fr;}.post-card .thumb{min-height:150px;}.post-card .body{padding:0 20px 20px;}}

/* ---------- 개별 글 ---------- */
.post-hero{padding:40px 0 10px;}
.back-link{display:inline-block;font-size:13px;color:var(--muted);text-decoration:none;font-weight:600;margin-bottom:22px;}
.back-link:hover{color:var(--aqua-deep);}
.post-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--aqua-deep);background:var(--aqua-soft);border-radius:6px;padding:4px 10px;margin-bottom:16px;}
.post-hero h1{font-size:clamp(25px,4.2vw,38px);font-weight:800;line-height:1.25;letter-spacing:-.02em;margin:0 0 18px;}
.post-meta{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13.5px;padding-bottom:26px;border-bottom:1px solid var(--line);}
.post-meta b{color:var(--ink);font-weight:700;}
.post-meta .dot{color:var(--line);}

.article{padding:30px 0 10px;font-size:16.5px;line-height:1.85;color:#26292E;}
.article p{margin:0 0 20px;}
.article h2{font-size:21px;font-weight:800;letter-spacing:-.01em;margin:40px 0 14px;padding-left:14px;border-left:3px solid var(--aqua);}
.article strong{color:var(--ink);font-weight:700;}
.article .em{color:var(--aqua-deep);font-weight:700;}

/* 사진 */
.photo{margin:24px 0;border-radius:12px;overflow:hidden;background:#11161B;}
.photo img{width:100%;height:auto;display:block;}
.photo.placeholder{
  aspect-ratio:16/10;display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:#46525E;border:1px dashed #2C353D;background:#12171C;gap:6px;
}
.photo.placeholder .ph-ico{font-size:26px;opacity:.6;}
.photo.placeholder .ph-txt{font-size:13px;letter-spacing:.02em;}
.figcap{font-size:13px;color:var(--muted-dark);text-align:center;margin:-12px 0 24px;}

/* 기술자의 팁 */
.tip{
  background:var(--ink);color:#EAF0F1;border-radius:12px;padding:22px 24px;margin:30px 0;
  position:relative;border-left:3px solid var(--aqua);
}
.tip .tip-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--aqua);font-weight:700;margin:0 0 8px;}
.tip p{margin:0;font-size:15.5px;line-height:1.75;color:#D7DCE1;}

/* 유튜브 영상 */
.video-wrap{position:relative;padding-bottom:56.25%;height:0;border-radius:12px;overflow:hidden;margin:24px 0;background:#11161B;}
.video-wrap iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0;}
.video-wrap.placeholder{padding-bottom:56.25%;}
.video-wrap.placeholder .vp-inner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#46525E;border:1px dashed #2C353D;gap:8px;}
.video-wrap.placeholder .vp-ico{font-size:34px;opacity:.7;}

/* CTA 박스 */
.cta-box{
  background:radial-gradient(120% 120% at 80% 0%, #1F252C 0%, var(--ink) 60%);
  color:#fff;border-radius:16px;padding:38px 32px;margin:46px 0 10px;text-align:center;
}
.cta-box p{margin:0 0 14px;font-size:16px;line-height:1.7;color:#D7DCE1;}
.cta-box .slogan{font-size:18px;font-weight:700;color:#fff;margin:18px 0 22px;}
.cta-box .call{display:inline-flex;align-items:center;gap:9px;background:var(--aqua);color:#06262A;
  font-weight:800;font-size:16px;text-decoration:none;padding:14px 26px;border-radius:10px;transition:background .18s ease;}
.cta-box .call:hover{background:#16D6DD;}
.cta-box .biz{font-size:13px;color:var(--muted-dark);margin:18px 0 0;}

/* 작업 전후 비교 */
.ba-compare{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:24px 0 4px;}
.ba-compare figure{position:relative;margin:0;border-radius:10px;overflow:hidden;background:#11161B;}
.ba-compare img{width:100%;height:100%;object-fit:cover;display:block;aspect-ratio:4/3;}
.ba-tag{position:absolute;top:10px;left:10px;font-size:12px;font-weight:700;color:#fff;
  padding:4px 10px;border-radius:6px;letter-spacing:.02em;}
.ba-tag.before{background:rgba(20,23,27,.80);}
.ba-tag.after{background:var(--aqua-deep);}
@media(max-width:560px){.ba-compare{gap:7px;}.ba-tag{font-size:11px;padding:3px 8px;}}

/* FAQ */
.faq{margin:14px 0 10px;}
.faq .faq-q{font-size:16px;font-weight:700;color:var(--ink);margin:22px 0 8px;}
.faq .faq-a{font-size:15.5px;color:#3A3F45;margin:0 0 4px;line-height:1.8;}

/* 공통 푸터 */
footer.legal{background:var(--ink);color:var(--muted-dark);font-size:12.5px;padding:30px 0;text-align:center;margin-top:40px;}

:focus-visible{outline:2px solid var(--aqua);outline-offset:3px;border-radius:4px;}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto;}}