/* 3D Tools blog — same tokens as the /3d hub. Light/dark by system setting. */
:root{--bg:#0c0e12;--card:#14171c;--line:#262b33;--fg:#f2efe9;--mut:#9aa1ab;--acc:#e0913a;--acc-ink:#1a1206;--code:#1b1f26}
@media (prefers-color-scheme:light){:root{--bg:#f6f4f0;--card:#fff;--line:#e3ded6;--fg:#1b1d21;--mut:#5f656e;--acc:#c26f16;--acc-ink:#fff;--code:#f0ece5}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif;overflow-x:hidden}
a{color:var(--acc)}
img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px 0 36px}
.muted{color:var(--mut)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--acc)}
.btn{display:inline-block;background:var(--acc);color:var(--acc-ink);font-weight:700;text-decoration:none;padding:11px 18px;border-radius:10px}
.btn-sm{padding:7px 13px;font-size:14px}

.nav{border-bottom:1px solid var(--line);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);z-index:10}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--fg);text-decoration:none;font-size:18px}
.nav-r{display:flex;align-items:center;gap:16px}
.nav-l{color:var(--fg);text-decoration:none;font-size:15px}

.blog-hero{padding:56px 0 28px}
.blog-hero h1{font-size:clamp(2rem,5vw,3rem);line-height:1.12;margin:8px 0 10px;letter-spacing:-.02em}
.hl{color:var(--acc)}
.lede{font-size:1.1rem;max-width:640px;margin:0}

.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;padding-bottom:48px}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
.post-card:hover{border-color:var(--acc);transform:translateY(-2px)}
.post-card img,.pc-ph{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:linear-gradient(135deg,#1d2128,#2b2116)}
.pc-body{padding:14px 16px 16px}
.pc-body h3{margin:6px 0 6px;font-size:1.08rem;line-height:1.3}
.pc-body p{margin:0 0 8px;font-size:.95rem}
.pc-date{font-size:13px;color:var(--mut)}

.article{max-width:760px;padding-top:40px;padding-bottom:40px}
.article h1{font-size:clamp(1.8rem,4.5vw,2.6rem);line-height:1.15;margin:8px 0 10px;letter-spacing:-.02em}
.meta{color:var(--mut);font-size:15px;margin-bottom:22px}
.hero-img{width:100%;border-radius:14px;margin-bottom:22px;aspect-ratio:16/9;object-fit:cover}
.body h2{font-size:1.5rem;margin:2em 0 .5em;line-height:1.25}
.body h3{font-size:1.18rem;margin:1.6em 0 .4em}
.body p,.body li{color:var(--fg)}
.body ul,.body ol{padding-left:1.3em}
.body li{margin:.3em 0}
.body code{background:var(--code);padding:.1em .35em;border-radius:5px;font-size:.92em}
.body pre{background:var(--code);padding:14px;border-radius:10px;overflow-x:auto}
.body blockquote{margin:1.2em 0;padding:.4em 1em;border-left:3px solid var(--acc);color:var(--mut)}
.body table{border-collapse:collapse;width:100%;display:block;overflow-x:auto;font-size:.95rem}
.body th,.body td{border:1px solid var(--line);padding:7px 10px;text-align:left}
.body img{border-radius:10px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0}
.chip{font-size:13px;padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--mut)}
.post-cta{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin:30px 0}
.post-cta h3{margin:0 0 6px}
.post-cta p{margin:0 0 14px}
.keep{font-size:1.3rem;margin-top:40px}
.article .post-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));padding-bottom:0}

footer{border-top:1px solid var(--line);padding:22px 0;font-size:14px;color:var(--mut)}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.flinks{display:flex;gap:14px}.flinks a{color:var(--mut)}

@media (max-width:600px){
  body{font-size:16px}
  .wrap{padding:0 16px 0 32px}
  .nav-l{display:none}
  .blog-hero{padding:36px 0 18px}
  .post-grid{grid-template-columns:1fr}
}