/* Rhino Coatings blog - dark brand theme. Stable, non-hashed stylesheet for the
   standalone blog pages; tokens + nav mirror web/app/globals.css so the blog
   matches the main site. Fonts (Archivo/Lato) loaded via Google Fonts in the
   template head. Mobile drawer is pure CSS (checkbox toggle, no JS). */
:root{
  --orange:#E8610A; --orange-lt:#FF8C42; --orange-deep:#B84808;
  --char:#0B0E14; --char-2:#13171F; --char-3:#1A1F2B;
  --line:rgba(255,255,255,0.08); --line-strong:rgba(255,255,255,0.16);
  --txt:#E8ECF2; --txt-mute:#7E8A9D; --txt-dim:#525C6D;
  --maxw:720px;
  --font-head:'Archivo',system-ui,-apple-system,sans-serif;
  --font-narrow:'Archivo Narrow',system-ui,sans-serif;
  --font-body:'Lato',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--char);color:var(--txt);font-family:var(--font-body);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* Header / nav (mirrors web/components/Nav.tsx + globals.css). Sticky+opaque
   here since the blog has no hero/scroll-scrim like the homepage. */
.nav{position:sticky;top:0;left:0;right:0;z-index:50;padding:14px 32px;background:rgba(11,14,20,0.96);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:32px}
.nav-brand{display:flex;align-items:center;gap:12px;font-family:var(--font-head);font-weight:800;font-size:18px;letter-spacing:.02em;text-transform:uppercase;color:#fff;text-decoration:none}
.nav-brand img{height:40px;width:auto;filter:drop-shadow(0 2px 8px rgba(232,97,10,0.4))}
.nav-brand-text{display:flex;flex-direction:column;line-height:1}
.nav-brand-text small{font-family:var(--font-narrow);font-size:10px;font-weight:500;color:rgba(255,255,255,0.78);letter-spacing:.18em;margin-top:3px;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{padding:9px 14px;font-family:var(--font-head);font-weight:500;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:rgba(255,255,255,0.88);border-radius:6px;transition:color .2s,background .2s;white-space:nowrap;text-decoration:none}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,0.04)}
/* "AI powered" badge on the Visualizer item */
.ai-badge{display:inline-flex;align-items:center;gap:3px;margin-left:7px;vertical-align:middle;line-height:1;padding:2px 6px 2px 5px;border-radius:999px;background:linear-gradient(135deg,rgba(167,139,250,0.18),rgba(96,165,250,0.16));border:1px solid rgba(150,160,255,0.40);box-shadow:0 1px 7px rgba(99,102,241,0.28)}
.ai-badge-spark{display:block;filter:drop-shadow(0 0 2px rgba(129,140,248,0.6))}
.ai-badge .ai-badge-text{font-family:var(--font-head);font-weight:700;font-size:9px;letter-spacing:.1em;background:linear-gradient(135deg,#bda7ff,#6db4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links a:hover .ai-badge{border-color:rgba(170,185,255,0.6)}
.nav-drawer-links .nav-drawer-label{display:inline-flex;align-items:center;color:#fff;font-size:inherit;font-weight:inherit}
.nav-drawer-links .nav-drawer-label .ai-badge{margin-left:10px}
.nav-drawer-links .nav-drawer-label .ai-badge-text{font-size:11px}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{font-family:var(--font-head);font-weight:700;font-size:14px;letter-spacing:.02em;display:inline-flex;align-items:center;gap:8px;color:#fff;white-space:nowrap;text-decoration:none}
.nav-phone .dot{position:relative;width:7px;height:7px;background:#4ade80;border-radius:50%;flex-shrink:0}
.nav-phone .dot::after{content:'';position:absolute;inset:-3px;border-radius:50%;background:rgba(74,222,128,0.6);transform:scale(1);opacity:.6;animation:navDotPulse 1.8s ease-out infinite;pointer-events:none;z-index:-1}
@keyframes navDotPulse{0%{transform:scale(1);opacity:.6}70%{transform:scale(2.8);opacity:0}100%{transform:scale(2.8);opacity:0}}
@media (prefers-reduced-motion:reduce){.nav-phone .dot::after{animation:none;opacity:0}}
.nav-quote-btn{white-space:nowrap}
.nav-burger{display:none;width:42px;height:42px;border-radius:8px;background:rgba(255,255,255,0.06);border:1px solid var(--line-strong);color:#fff;font-size:18px;cursor:pointer;align-items:center;justify-content:center;transition:background .2s,border-color .2s}
.nav-burger:hover{background:rgba(255,255,255,0.1);border-color:var(--orange)}

/* Mobile/tablet drawer - pure CSS, toggled by the hidden #blog-nav-toggle checkbox. */
.nav-drawer{position:fixed;inset:0;z-index:55;background:rgba(11,14,20,0.98);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:flex-start;justify-content:center;padding:96px 24px 32px;overflow-y:auto;opacity:0;pointer-events:none;transition:opacity .25s ease}
.blog-nav-toggle:checked ~ .nav-drawer{opacity:1;pointer-events:auto}
html:has(.blog-nav-toggle:checked){overflow:hidden}
.nav-drawer-inner{width:100%;max-width:480px;display:flex;flex-direction:column;gap:8px}
.nav-drawer-close{position:fixed;top:24px;right:24px;width:44px;height:44px;border-radius:8px;background:rgba(255,255,255,0.06);border:1px solid var(--line-strong);color:#fff;font-size:20px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s;z-index:1}
.nav-drawer-close:hover{background:rgba(255,255,255,0.1);border-color:var(--orange)}
.nav-drawer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
.nav-drawer-links a{display:flex;align-items:center;justify-content:space-between;padding:18px 4px;border-bottom:1px solid var(--line);font-family:var(--font-head);font-weight:700;font-size:22px;letter-spacing:-.01em;color:#fff;text-transform:none;text-decoration:none}
.nav-drawer-links a:hover{color:var(--orange)}
.nav-drawer-links a span{color:var(--orange);font-weight:400;font-size:18px}
.nav-drawer-cta{background:var(--orange);color:#fff !important;border-radius:6px;padding:18px 18px !important;margin-top:14px}
.nav-drawer-cta span{color:#fff !important}
.nav-drawer-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.nav-drawer-phone{font-family:var(--font-head);font-weight:800;font-size:24px;color:#fff;white-space:nowrap;text-decoration:none}
.nav-drawer-foot > span{font-family:var(--font-narrow);font-size:11px;letter-spacing:.18em;color:var(--txt-mute);text-transform:uppercase}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--font-head);font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;padding:14px 24px;border-radius:6px;cursor:pointer;border:1px solid transparent;transition:transform .2s,background .2s,border-color .2s,color .2s;text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--orange-deep);color:#fff}
.btn-primary:hover{background:var(--orange);transform:translateY(-1px)}
.btn-arrow{display:inline-block;transition:transform .2s}
.btn:hover .btn-arrow{transform:translateX(4px)}

/* Article */
main.post{max-width:var(--maxw);margin:0 auto;padding:48px 24px 80px}
.crumbs{color:var(--txt-mute);font-family:var(--font-narrow);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.crumbs a{color:var(--txt-mute);text-decoration:none}
.crumbs a:hover{color:var(--txt)}
.cats{margin-bottom:12px}
.cats .cat{display:inline-block;font-family:var(--font-narrow);font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--orange-lt);text-decoration:none;margin-right:10px}
.post h1{font-family:var(--font-head);font-weight:800;font-size:2.6rem;line-height:1.05;letter-spacing:-.025em;color:#fff;margin:.1em 0 .3em}
.byline{color:var(--txt-mute);font-size:.92rem;margin-bottom:28px}
.byline time{color:var(--txt)}
figure.hero{margin:0 0 32px}
.hero img,.post-body img{height:auto;border-radius:12px;border:1px solid var(--line)}
.post-body{font-size:1.12rem;line-height:1.8;color:var(--txt)}
.post-body > * + *{margin-top:1.3em}
.post-body h2{font-family:var(--font-head);font-weight:800;font-size:1.7rem;line-height:1.15;letter-spacing:-.02em;color:#fff;margin-top:1.8em}
.post-body h3{font-family:var(--font-head);font-weight:700;font-size:1.32rem;color:#fff;margin-top:1.5em}
.post-body h4{font-family:var(--font-head);font-weight:700;font-size:1.1rem;color:#fff;margin-top:1.3em}
.post-body a{color:var(--orange-lt);text-decoration:underline;text-underline-offset:2px}
.post-body a:hover{color:var(--orange)}
.post-body ul,.post-body ol{padding-left:1.4em}
.post-body li{margin-top:.5em}
.post-body blockquote{margin:1.6em 0;padding:.2em 0 .2em 1.2em;border-left:3px solid var(--orange);color:var(--txt-mute);font-style:italic}
.post-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--char-3);padding:.15em .4em;border-radius:4px}
.post-body pre{background:var(--char-2);border:1px solid var(--line);border-radius:10px;padding:18px;overflow:auto}
.post-body pre code{background:none;padding:0}
.post-body figure{margin:1.6em 0}
.post-body figcaption{color:var(--txt-dim);font-size:.85rem;text-align:center;margin-top:.6em}

/* Related */
.related{margin-top:64px;border-top:1px solid var(--line);padding-top:28px}
.related h2{font-family:var(--font-head);font-weight:800;font-size:1.2rem;text-transform:uppercase;letter-spacing:.04em;color:#fff}
.related ul{list-style:none;padding:0;margin:14px 0 0}
.related li{margin-top:10px}
.related a{color:var(--orange-lt);text-decoration:none;font-weight:700}
.related a:hover{color:var(--orange)}

/* Listing / archive */
main.blog-index{max-width:1180px;margin:0 auto;padding:48px 24px 80px}
.index-head{margin-bottom:36px}
.index-head .crumbs{margin-bottom:10px}
.index-head h1{font-family:var(--font-head);font-weight:800;font-size:2.6rem;letter-spacing:-.025em;color:#fff;margin:0}
.blog-index .cards{display:grid;grid-template-columns:1fr;gap:28px}
.card{background:var(--char-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.card > a{display:block;text-decoration:none;color:inherit}
.card img{width:100%;aspect-ratio:1200/630;object-fit:cover;display:block;border:0;border-radius:0}
.card h2{font-family:var(--font-head);font-weight:700;font-size:1.3rem;line-height:1.2;color:#fff;margin:16px 18px 0}
.card p{color:var(--txt-mute);margin:10px 18px;font-size:.96rem}
.card .meta{color:var(--txt-dim);font-size:.82rem;margin:0 18px 18px}
.pager{display:flex;justify-content:space-between;margin-top:44px}
.pager a{color:var(--orange-lt);font-family:var(--font-head);font-weight:700;text-transform:uppercase;font-size:.85rem;letter-spacing:.05em;text-decoration:none}
.pager a:hover{color:var(--orange)}

/* Footer */
.site-footer{border-top:1px solid var(--line);background:var(--char-2);margin-top:80px}
.site-footer .ftr-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:48px 24px}
.ftr-brand{display:flex;flex-direction:column;gap:12px}
.ftr-brand .brand-logo{height:42px;width:auto;display:block}
.ftr-brand strong{font-family:var(--font-head);font-weight:800;color:#fff;text-transform:uppercase;letter-spacing:.02em}
.ftr-brand span{display:block;color:var(--txt-mute);font-size:.85rem;margin-top:2px}
.ftr-col h4{font-family:var(--font-narrow);font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.14em;color:var(--txt-dim);margin:0 0 14px}
.ftr-col a{display:block;color:var(--txt-mute);text-decoration:none;font-size:.95rem;margin-top:9px}
.ftr-col a:hover{color:var(--orange-lt)}
.ftr-bottom{border-top:1px solid var(--line);padding:18px 24px;color:var(--txt-dim);font-size:.85rem;text-align:center}

/* Responsive - nav breakpoints match the main site (1180px drawer, 780px tighten) */
@media (min-width:760px){ .blog-index .cards{grid-template-columns:1fr 1fr} }
@media (max-width:1180px){ .nav-links{display:none} .nav-burger{display:inline-flex} }
@media (max-width:860px){
  .post h1,.index-head h1{font-size:2rem}
  .site-footer .ftr-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:780px){
  .nav-phone{display:none}
  .nav-quote-btn{display:none}
  .nav{padding:14px 18px}
  .nav-brand img{height:32px}
  .nav-brand-text small{display:none}
}
@media (max-width:520px){ .site-footer .ftr-grid{grid-template-columns:1fr} }