/* ===========================================================
   BuyBox Studio — Blog stylesheet (shared by /blog.html and
   every post in /blog/*.html). Uses the same brand tokens as
   the main site so colors, fonts and theme match exactly.
   =========================================================== */
:root{
  --ink:#0B0E14;--ink-2:#10141D;
  --panel:rgba(255,255,255,.045);--line:rgba(255,255,255,.10);
  --text:#EDEFF4;--muted:#9AA3B2;
  --amber:#FF6200;--amber-deep:#DB4E00;--ice:#9DB8FF;--good:#38D39F;
  --amber-ink:var(--amber);--ice-ink:var(--ice);
  --nav-glass:rgba(13,17,26,.6);
  --card:rgba(255,255,255,.03);
  --radius:20px;
  --font-display:"Bricolage Grotesque",system-ui,sans-serif;
  --font-body:"Inter",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.22,1,.36,1);
}
:root[data-theme="light"]{
  --ink:#FDF4EF;--ink-2:#FFFFFF;
  --panel:#FFFFFF;--line:rgba(23,20,14,.12);
  --text:#171A1F;--muted:#5B6473;
  --amber-ink:#C2410C;--ice-ink:#3457C4;
  --nav-glass:rgba(255,255,255,.78);
  --card:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--text);font-family:var(--font-body);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}

/* ---------------- NAV ---------------- */
.b-nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:14px clamp(16px,4vw,40px);background:var(--nav-glass);
  backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid var(--line)}
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap;cursor:pointer;transition:opacity .25s}
.logo:hover{opacity:.82}
.logo-mark{height:42px;width:auto;flex-shrink:0;color:var(--amber)}
.logo-mark .dot{fill:var(--amber)}
.logo-lock{display:flex;flex-direction:column;justify-content:center;gap:3px}
.logo-name{font-family:var(--font-display);font-weight:700;font-size:19px;line-height:1;letter-spacing:-.01em;color:var(--text)}
.logo-desc{font-family:var(--font-body);font-weight:600;font-size:9.5px;line-height:1;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
.b-nav-links{display:flex;align-items:center;gap:26px;list-style:none}
.b-nav-links a{color:var(--muted);text-decoration:none;font-size:15px;font-weight:500;transition:color .25s}
.b-nav-links a:hover,.b-nav-links a[aria-current="page"]{color:var(--amber-ink)}
.b-nav-right{display:flex;align-items:center;gap:16px}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:14.5px;text-decoration:none;
  white-space:nowrap;padding:11px 22px;border-radius:100px;border:1px solid transparent;cursor:pointer;transition:box-shadow .3s,border-color .3s}
.btn-primary{background:linear-gradient(135deg,var(--amber),var(--amber-deep));color:#FFFFFF;box-shadow:0 6px 24px rgba(255,98,0,.34)}
.btn-primary:hover{box-shadow:0 14px 40px rgba(255,98,0,.5)}
.btn-ghost{border-color:var(--line);color:var(--text);background:var(--panel)}
.btn-ghost:hover{border-color:rgba(255,98,0,.45)}
.theme-toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--panel);
  color:var(--text);cursor:pointer;display:grid;place-items:center;transition:border-color .25s}
.theme-toggle:hover{border-color:rgba(255,98,0,.45)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .tt-sun{display:none}
:root[data-theme="light"] .theme-toggle .tt-sun{display:block}
:root[data-theme="light"] .theme-toggle .tt-moon{display:none}

/* ---------------- LAYOUT ---------------- */
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--amber-ink);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--amber)}

/* ---------------- BLOG INDEX ---------------- */
.blog-head{padding:clamp(60px,10vw,110px) 0 40px}
.blog-head h1{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em;line-height:1.05;
  font-size:clamp(38px,6vw,68px);margin:18px 0 14px}
.blog-head p{color:var(--muted);font-size:clamp(16px,2.4vw,19px);max-width:60ch}
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:26px;
  padding-bottom:clamp(70px,10vw,120px)}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,98,0,.4);box-shadow:0 20px 50px rgba(0,0,0,.35)}
.post-card .cover{aspect-ratio:16/10;background:linear-gradient(160deg,#161B27,#0E1219);overflow:hidden}
.post-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.post-card:hover .cover img{transform:scale(1.05)}
.post-card .body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{align-self:flex-start;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--amber-ink);border:1px solid rgba(255,98,0,.3);background:rgba(255,98,0,.06);padding:5px 11px;border-radius:100px}
.post-card h2,.post-card h3{font-family:var(--font-display);font-weight:700;font-size:22px;letter-spacing:-.01em;line-height:1.2}
.post-card .excerpt{color:var(--muted);font-size:15px}
.post-card .meta{margin-top:auto;color:var(--muted);font-size:13px;font-family:var(--font-mono)}

/* ---------------- ARTICLE ---------------- */
.article{padding:clamp(40px,7vw,80px) 0 clamp(60px,9vw,110px)}
.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--muted);text-decoration:none;
  font-size:14px;font-weight:500;margin-bottom:30px;transition:color .25s}
.back-link:hover{color:var(--amber-ink)}
.article-head{max-width:760px;margin:0 auto 34px}
.article-head h1{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em;line-height:1.08;
  font-size:clamp(32px,5vw,52px);margin:14px 0 16px}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;color:var(--muted);
  font-size:14px;font-family:var(--font-mono)}
.article-cover{max-width:960px;margin:0 auto 44px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.prose{max-width:720px;margin:0 auto;font-size:clamp(16px,2.2vw,18px)}
.prose h2{font-family:var(--font-display);font-weight:700;font-size:clamp(24px,3.4vw,32px);letter-spacing:-.01em;
  margin:44px 0 14px;line-height:1.2}
.prose h3{font-family:var(--font-display);font-weight:600;font-size:clamp(20px,2.8vw,24px);margin:34px 0 12px}
.prose p{margin:0 0 20px;color:var(--text)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:24px;color:var(--text)}
.prose li{margin:0 0 8px}
.prose li::marker{color:var(--amber-ink)}
.prose a{color:var(--amber-ink);text-decoration:underline;text-underline-offset:3px}
.prose img{border-radius:14px;border:1px solid var(--line);margin:26px 0}
.prose blockquote{border-left:3px solid var(--amber);padding:6px 0 6px 22px;margin:26px 0;
  color:var(--muted);font-size:1.08em;font-style:italic}
.prose code{font-family:var(--font-mono);font-size:.9em;background:var(--panel);border:1px solid var(--line);
  padding:2px 7px;border-radius:6px}
.prose strong{color:var(--text)}
.article-cta{max-width:720px;margin:56px auto 0;padding:32px;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--card);text-align:center}
.article-cta h3{font-family:var(--font-display);font-weight:700;font-size:24px;margin-bottom:8px}
/* related articles — reuses .post-grid/.post-card from the index */
.related{max-width:720px;margin:64px auto 0;padding-top:40px;border-top:1px solid var(--line)}
.related>h2{font-family:var(--font-display);font-weight:700;font-size:21px;letter-spacing:-.01em;margin-bottom:22px}
.related .post-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;margin:0}
.related .post-card .body{padding:16px 16px 20px;gap:8px}
.related .post-card h3{font-size:16.5px}
.related .post-card .excerpt{font-size:13.5px}
.related .post-card .meta{font-size:12px}
.article-cta p{color:var(--muted);margin-bottom:20px}

/* ---------------- FOOTER ---------------- */
.b-foot{border-top:1px solid var(--line);padding:30px clamp(16px,4vw,40px);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:14px}
.b-foot a{color:var(--muted);text-decoration:none}
.b-foot a:hover{color:var(--amber-ink)}

@media(max-width:640px){
  .b-nav-links{display:none}
  .article-meta{gap:10px}
}