/* InteriorBOQ blog — shared styles (matches homepage tokens) */
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --orange:#E8841A;--orange-d:#C46912;--navy:#1B3D8C;--navy-d:#142D66;
  --ink:#1a1a1a;--mute:#5b6b7d;--line:#e6ecf3;--bg:#f7f9fc;--card:#fff;
  --body:#3b4a5c;--good:#1d7c3b;--good-bg:#e8f7ec;--bad:#a83a3a;--bad-bg:#fdecec;--mid:#8a5a00;--mid-bg:#fff4dd;
}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.55;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* NAV (same as homepage) */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,0.96);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);}
.nav-in{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1200px;margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--navy);}
.brand-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#E8841A,#F5A835);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 16px rgba(232,132,26,0.4);}
.brand-mark svg{width:22px;height:22px;}
.brand small{display:block;font-size:10px;color:var(--mute);font-weight:800;letter-spacing:1.2px;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{font-weight:600;font-size:14px;color:var(--ink);transition:color 0.2s;}
.nav-links a:hover,.nav-links a.current{color:var(--orange);}
.nav-cta{background:var(--orange);color:#fff!important;padding:9px 18px;border-radius:8px;font-size:14px;font-weight:700;transition:all 0.2s;}
.nav-cta:hover{background:var(--orange-d);transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,132,26,0.35);}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:8px;font-size:22px;color:var(--ink);}

/* Reading progress */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--orange),#F5A835);z-index:60;transition:width 0.08s linear;}

/* Buttons */
.btn-primary{background:var(--orange);color:#fff;padding:13px 24px;border-radius:10px;font-size:15px;font-weight:700;display:inline-flex;align-items:center;gap:8px;transition:all 0.2s;}
.btn-primary:hover{background:var(--orange-d);transform:translateY(-2px);box-shadow:0 10px 24px rgba(232,132,26,0.4);}
.btn-ghost{background:transparent;color:#fff;padding:13px 24px;border-radius:10px;font-size:15px;font-weight:700;border:2px solid rgba(255,255,255,0.4);display:inline-flex;align-items:center;gap:8px;transition:all 0.2s;}
.btn-ghost:hover{background:rgba(255,255,255,0.1);}

/* POST HERO */
.post-hero{padding:56px 0 48px;background:linear-gradient(135deg,#fff 0%,#f0f5ff 60%,#fff5e8 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.post-hero::before{content:'';position:absolute;top:-120px;right:-80px;width:420px;height:420px;background:radial-gradient(circle,rgba(232,132,26,0.12) 0%,transparent 70%);border-radius:50%;}
.post-hero-in{position:relative;max-width:880px;}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--mute);margin-bottom:22px;}
.crumbs a{color:var(--navy);font-weight:600;}
.crumbs a:hover{color:var(--orange);}
.crumbs span[aria-hidden]{color:#b5c0cc;}
.post-tag{display:inline-block;background:rgba(232,132,26,0.12);color:var(--orange-d);padding:6px 14px;border-radius:20px;font-size:12px;font-weight:800;letter-spacing:0.5px;text-transform:uppercase;margin-bottom:18px;}
.post-hero h1{font-size:46px;line-height:1.14;font-weight:800;color:var(--navy);letter-spacing:-0.6px;margin-bottom:18px;}
.post-hero h1 span{color:var(--orange);}
.dek{font-size:18px;color:var(--mute);line-height:1.65;max-width:760px;margin-bottom:26px;}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--mute);}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--navy),#2f5bc4);color:#fff;font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 14px rgba(27,61,140,0.25);}
.meta strong{color:var(--ink);display:block;font-size:14px;}
.meta .dot{width:4px;height:4px;border-radius:50%;background:#c3ccd7;}

/* LAYOUT */
.post-body{padding:56px 0 80px;}
.post-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:56px;align-items:start;}
.toc{position:sticky;top:92px;}
.toc-box{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:18px 12px 14px;}
.toc summary{list-style:none;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:0.9px;color:var(--navy);padding:0 10px 12px;border-bottom:1px solid var(--line);margin-bottom:8px;cursor:default;}
.toc summary::-webkit-details-marker{display:none;}
.toc ol{list-style:none;counter-reset:toc;}
.toc li{counter-increment:toc;}
.toc ol a{display:flex;gap:10px;padding:8px 10px;border-radius:8px;font-size:13.5px;font-weight:600;line-height:1.38;color:var(--mute);transition:color 0.2s,background 0.2s,box-shadow 0.2s;}
.toc ol a::before{content:counter(toc,decimal-leading-zero);min-width:18px;padding-top:1px;font-size:11px;font-weight:800;color:#a3b0bf;}
.toc ol a:hover{color:var(--navy);background:#fff;}
.toc ol a.active{color:var(--navy);background:#fff;box-shadow:inset 3px 0 0 var(--orange),0 2px 8px rgba(27,61,140,0.06);}
.toc ol a.active::before{color:var(--orange);}
.toc-cta{margin-top:14px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-d) 100%);border-radius:16px;padding:20px;color:#fff;}
.toc-cta strong{display:block;font-size:15px;margin-bottom:6px;}
.toc-cta span{display:block;font-size:13px;color:rgba(255,255,255,0.75);margin-bottom:14px;line-height:1.5;}
.toc-cta a{display:block;text-align:center;background:var(--orange);color:#fff;font-weight:700;font-size:14px;padding:10px 12px;border-radius:9px;transition:background 0.2s;}
.toc-cta a:hover{background:var(--orange-d);}
.share{margin-top:14px;display:flex;gap:8px;align-items:center;padding:0 4px;font-size:12px;font-weight:700;color:var(--mute);text-transform:uppercase;letter-spacing:0.6px;}
.share a,.share button{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--navy);font-size:12px;font-weight:800;cursor:pointer;transition:all 0.2s;font-family:inherit;}
.share a:hover,.share button:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-1px);}

/* ARTICLE TYPOGRAPHY */
.article{max-width:780px;min-width:0;}
.article h2{font-size:30px;font-weight:800;color:var(--navy);line-height:1.25;letter-spacing:-0.3px;margin:64px 0 16px;padding-top:30px;border-top:1px solid var(--line);scroll-margin-top:92px;}
.article h3{font-size:20px;font-weight:700;color:var(--navy);line-height:1.35;margin:32px 0 10px;scroll-margin-top:92px;}
.article p{font-size:16.5px;line-height:1.85;color:var(--body);margin-bottom:16px;}
.article p a,.article li a{color:var(--navy);font-weight:600;text-decoration:underline;text-decoration-color:rgba(232,132,26,0.5);text-underline-offset:3px;}
.article p a:hover,.article li a:hover{color:var(--orange);}
.article strong{color:var(--ink);}
.article ul.bul{margin:6px 0 20px 0;padding-left:0;list-style:none;}
.article ul.bul li{position:relative;padding-left:24px;margin-bottom:10px;font-size:16px;line-height:1.75;color:var(--body);}
.article ul.bul li::before{content:'';position:absolute;left:4px;top:11px;width:8px;height:8px;border-radius:50%;background:var(--orange);}

/* Answer + takeaways */
.answer{background:linear-gradient(135deg,#fff8ef 0%,#f2f6ff 100%);border:1px solid rgba(232,132,26,0.32);border-left:5px solid var(--orange);border-radius:16px;padding:24px 28px;margin-bottom:22px;box-shadow:0 14px 36px rgba(27,61,140,0.07);}
.lbl{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:0.9px;text-transform:uppercase;color:var(--orange-d);margin-bottom:10px;}
.lbl::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(232,132,26,0.18);}
.article .answer p{font-size:17px;color:var(--ink);margin-bottom:10px;}
.article .answer p:last-child{margin-bottom:0;}
.takeaways{border:1px solid var(--line);border-radius:16px;padding:22px 26px;margin-bottom:12px;background:#fff;}
.takeaways .lbl{color:var(--navy);}
.takeaways .lbl::before{background:var(--navy);box-shadow:0 0 0 4px rgba(27,61,140,0.15);}
.takeaways ul{list-style:none;display:grid;gap:10px;}
.takeaways li{position:relative;padding-left:30px;font-size:15.5px;line-height:1.65;color:var(--body);}
.takeaways li::before{content:'✓';position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;background:rgba(232,132,26,0.15);color:var(--orange-d);font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;}
.disclosure{font-size:13.5px!important;line-height:1.65!important;color:var(--mute)!important;background:var(--bg);border:1px dashed #d5dde8;border-radius:10px;padding:12px 16px;margin-top:18px;}

/* Feature checklist grid */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0 22px;}
.feat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:all 0.25s;box-shadow:0 4px 14px rgba(27,61,140,0.04);}
.feat:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:0 14px 30px rgba(27,61,140,0.1);}
.feat-n{display:inline-flex;width:28px;height:28px;border-radius:8px;background:rgba(232,132,26,0.14);color:var(--orange-d);font-size:13px;font-weight:800;align-items:center;justify-content:center;margin-bottom:10px;}
.feat h3{font-size:16px!important;margin:0 0 6px!important;}
.article .feat p{font-size:14.5px;line-height:1.65;margin:0;}

/* Tables */
.table-wrap{overflow-x:auto;margin:20px 0 12px;border:1px solid var(--line);border-radius:14px;box-shadow:0 6px 20px rgba(27,61,140,0.05);-webkit-overflow-scrolling:touch;}
.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:680px;}
.tbl th{background:var(--navy);color:#fff;font-weight:700;font-size:13px;text-align:left;padding:13px 14px;vertical-align:bottom;}
.tbl th.hl{background:var(--orange);}
.tbl td{padding:12px 14px;border-top:1px solid var(--line);color:var(--body);vertical-align:top;line-height:1.55;}
.tbl tbody tr:nth-child(even) td{background:#fafcff;}
.tbl td:first-child{font-weight:700;color:var(--navy);min-width:170px;}
.tbl td.hl{background:#fff8ef!important;}
.chip{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:700;white-space:nowrap;}
.chip.y{background:var(--good-bg);color:var(--good);}
.chip.n{background:var(--bad-bg);color:var(--bad);}
.chip.p{background:var(--mid-bg);color:var(--mid);}
.tbl-note{font-size:13px!important;color:var(--mute)!important;line-height:1.6!important;}

/* Option cards */
.opt{position:relative;border:1px solid var(--line);border-radius:18px;padding:28px 28px 18px;margin:22px 0;background:#fff;box-shadow:0 8px 24px rgba(27,61,140,0.05);}
.opt.featured{border:2px solid var(--orange);box-shadow:0 18px 44px rgba(232,132,26,0.14);}
.opt-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:14px;}
.opt-rank{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:var(--navy);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;}
.opt.featured .opt-rank{background:var(--orange);}
.article .opt h3{margin:2px 0 6px;font-size:21px;}
.best{display:inline-block;background:rgba(27,61,140,0.08);color:var(--navy);font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:20px;}
.opt.featured .best{background:rgba(232,132,26,0.14);color:var(--orange-d);}
.pc{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:16px 0 14px;}
.pc>div{border-radius:12px;padding:16px 18px;}
.pc .pros{background:#f3fbf5;border:1px solid #cdebd6;}
.pc .cons{background:#fdf5f5;border:1px solid #f1d4d4;}
.pc h4{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:0.6px;margin-bottom:8px;}
.pc .pros h4{color:var(--good);}
.pc .cons h4{color:var(--bad);}
.pc ul{list-style:none;}
.pc li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.6;color:var(--body);margin-bottom:6px;}
.pc .pros li::before{content:'+';position:absolute;left:2px;top:0;font-weight:800;color:var(--good);}
.pc .cons li::before{content:'−';position:absolute;left:2px;top:0;font-weight:800;color:var(--bad);}
.opt-cta{display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#fff!important;text-decoration:none!important;font-weight:700;font-size:14.5px;padding:11px 20px;border-radius:10px;margin:4px 0 10px;transition:all 0.2s;}
.opt-cta:hover{background:var(--orange-d);transform:translateY(-2px);box-shadow:0 10px 24px rgba(232,132,26,0.35);}

/* Persona cards */
.persona-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0 22px;}
.persona{border:1px solid var(--line);border-radius:14px;padding:20px 22px;background:var(--bg);}
.persona .who{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:0.7px;color:var(--orange-d);margin-bottom:6px;}
.article .persona h3{font-size:17px;margin:0 0 8px;}
.article .persona p{font-size:14.5px;line-height:1.65;margin:0;}

/* Numbered checklist */
.qlist{list-style:none;counter-reset:q;display:grid;gap:10px;margin:12px 0 22px;}
.qlist li{counter-increment:q;position:relative;padding:13px 16px 13px 54px;border:1px solid var(--line);border-radius:12px;background:#fff;font-size:15.5px;line-height:1.6;color:var(--body);}
.qlist li::before{content:counter(q);position:absolute;left:14px;top:12px;width:28px;height:28px;border-radius:8px;background:var(--navy);color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;}

/* Steps */
.steps{position:relative;margin:22px 0 14px;}
.steps::before{content:'';position:absolute;left:41px;top:30px;bottom:30px;width:2px;background:linear-gradient(var(--orange),rgba(232,132,26,0.1));}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 24px 8px 84px;margin-bottom:14px;box-shadow:0 6px 18px rgba(27,61,140,0.05);}
.step-n{position:absolute;left:22px;top:18px;width:40px;height:40px;border-radius:50%;background:var(--orange);color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 5px #fff,0 6px 14px rgba(232,132,26,0.35);}
.article .step h3{margin:6px 0 8px;font-size:18px;}
.article .step p{font-size:15.5px;}

/* FAQ */
.faq{display:grid;gap:12px;margin:18px 0 10px;}
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;transition:box-shadow 0.2s,border-color 0.2s;}
.faq details[open]{box-shadow:0 6px 20px rgba(27,61,140,0.06);border-color:rgba(232,132,26,0.4);}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:700;color:var(--navy);font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px;line-height:1.5;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';font-size:24px;font-weight:400;color:var(--orange);line-height:1;flex-shrink:0;}
.faq details[open] summary::after{content:'−';}
.faq summary h3{font-size:16px!important;margin:0!important;color:inherit;font-weight:700;}
.article .faq .a{padding:0 22px 18px;}
.article .faq .a p{font-size:15px;margin-bottom:0;}

/* Final CTA */
.cta-final{margin-top:44px;padding:36px 34px;border-radius:20px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-d) 100%);color:#fff;position:relative;overflow:hidden;}
.cta-final::before{content:'';position:absolute;top:-80px;right:-80px;width:280px;height:280px;background:radial-gradient(circle,rgba(232,132,26,0.28) 0%,transparent 70%);}
.cta-final>*{position:relative;}
.article .cta-final h2{color:#fff;border:none;padding:0;margin:0 0 10px;font-size:26px;}
.article .cta-final p{color:rgba(255,255,255,0.8);margin-bottom:22px;}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap;}

/* Sources */
.sources{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
.sources h2{font-size:18px!important;margin:0 0 10px!important;padding:0!important;border:none!important;}
.sources ul{list-style:none;}
.sources li{font-size:13.5px;color:var(--mute);margin-bottom:6px;line-height:1.6;}
.sources a{color:var(--navy);text-decoration:underline;text-underline-offset:2px;}

/* Related */
.related{background:var(--bg);border-top:1px solid var(--line);padding:60px 0;}
.related h2{font-size:26px;font-weight:800;color:var(--navy);margin-bottom:22px;}

/* BLOG INDEX */
.blog-hero{padding:70px 0 56px;background:linear-gradient(135deg,#fff 0%,#f0f5ff 60%,#fff5e8 100%);border-bottom:1px solid var(--line);text-align:center;position:relative;overflow:hidden;}
.blog-hero::before{content:'';position:absolute;top:-120px;right:-80px;width:420px;height:420px;background:radial-gradient(circle,rgba(232,132,26,0.12) 0%,transparent 70%);border-radius:50%;}
.blog-hero>*{position:relative;}
.blog-hero h1{font-size:46px;font-weight:800;color:var(--navy);letter-spacing:-0.6px;line-height:1.15;margin-bottom:14px;}
.blog-hero h1 span{color:var(--orange);}
.blog-hero p{font-size:17px;color:var(--mute);max-width:640px;margin:0 auto;}
.blog-list{padding:56px 0 80px;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;transition:all 0.3s;box-shadow:0 6px 18px rgba(27,61,140,0.05);}
.post-card:hover{transform:translateY(-5px);border-color:var(--orange);box-shadow:0 20px 44px rgba(27,61,140,0.13);}
.post-card.feature{grid-column:span 2;flex-direction:row;}
.pc-art{background:linear-gradient(135deg,var(--navy) 0%,#2f5bc4 100%);min-height:190px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;}
.pc-art.alt{background:linear-gradient(135deg,#E8841A 0%,#F5A835 100%);}
.post-card.feature .pc-art{flex:0 0 46%;min-height:300px;}
.pc-art::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,0.18),transparent 55%);}
.pc-mock{position:relative;z-index:1;width:78%;max-width:300px;background:#fff;border-radius:12px;padding:14px;box-shadow:0 18px 40px rgba(0,0,0,0.25);}
.pc-mock i{display:block;height:9px;border-radius:5px;background:#e8eef6;margin-bottom:8px;}
.pc-mock i:nth-child(1){width:55%;background:var(--orange);opacity:.85;}
.pc-mock i:nth-child(2){width:90%;}
.pc-mock i:nth-child(3){width:80%;}
.pc-mock i:nth-child(4){width:86%;}
.pc-mock i:nth-child(5){width:40%;margin-left:auto;background:var(--navy);opacity:.75;margin-bottom:0;}
.pc-body{padding:24px 26px;display:flex;flex-direction:column;flex:1;}
.pc-tag{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:0.6px;color:var(--orange-d);margin-bottom:10px;}
.pc-body h2{font-size:20px;font-weight:800;color:var(--navy);line-height:1.3;margin-bottom:10px;}
.post-card.feature .pc-body h2{font-size:26px;}
.pc-body p{font-size:14.5px;color:var(--mute);line-height:1.65;margin-bottom:16px;flex:1;}
.pc-meta{font-size:13px;color:var(--mute);display:flex;gap:10px;align-items:center;}
.pc-more{font-weight:700;color:var(--orange);font-size:14px;margin-top:12px;}

/* FOOTER */
footer{background:#0f1f3d;color:rgba(255,255,255,0.75);padding:50px 0 24px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
.foot-col h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;text-transform:uppercase;letter-spacing:0.5px;}
.foot-col a,.foot-col p{display:block;color:rgba(255,255,255,0.65);font-size:14px;margin-bottom:10px;transition:color 0.2s;}
.foot-col a:hover{color:var(--orange);}
.foot-brand{font-size:18px;font-weight:800;color:#fff;margin-bottom:12px;}
.foot-bot{border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:13px;color:rgba(255,255,255,0.55);}

/* RESPONSIVE */
@media(max-width:1020px){
  .post-layout{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;}
  .toc summary{cursor:pointer;display:flex;justify-content:space-between;align-items:center;margin-bottom:0;border-bottom:none;padding-bottom:4px;}
  .toc summary::after{content:'+';font-size:20px;color:var(--orange);font-weight:400;}
  .toc details[open] summary{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:8px;}
  .toc details[open] summary::after{content:'−';}
  .toc-cta,.share{display:none;}
  .article{max-width:none;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-card.feature{grid-column:span 2;}
}
@media(max-width:900px){
  .nav-links{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:18px 24px;border-bottom:1px solid var(--line);box-shadow:0 12px 28px rgba(15,23,42,0.10);gap:6px;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-8px);transition:opacity .22s ease,transform .22s ease,visibility .22s;z-index:60;}
  .nav-links.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
  .nav-links a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:15px;}
  .nav-links a:last-child{border-bottom:none;margin-top:6px;text-align:center;padding:14px;}
  .hamburger{display:block;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media(max-width:640px){
  .container{padding:0 18px;}
  .nav-in{padding:12px 18px;}
  .brand{font-size:16px;}
  .brand-mark{width:34px;height:34px;}
  .post-hero{padding:36px 0 34px;}
  .post-hero h1,.blog-hero h1{font-size:30px;}
  .dek{font-size:16px;}
  .post-body{padding:34px 0 56px;}
  .article h2{font-size:24px;margin-top:48px;padding-top:24px;}
  .article h3{font-size:18px;}
  .article p{font-size:15.5px;}
  .answer,.takeaways{padding:20px;}
  .feat-grid,.persona-grid,.pc{grid-template-columns:1fr;}
  .opt{padding:22px 18px 12px;}
  .steps::before{display:none;}
  .step{padding:18px 18px 6px;}
  .step-n{position:static;margin-bottom:10px;box-shadow:0 6px 14px rgba(232,132,26,0.35);}
  .cta-final{padding:28px 20px;}
  .cta-btns a{width:100%;justify-content:center;}
  .post-grid{grid-template-columns:1fr;}
  .post-card.feature{grid-column:auto;flex-direction:column;}
  .post-card.feature .pc-art{flex:none;min-height:200px;}
  .post-card.feature .pc-body h2{font-size:21px;}
  .blog-hero{padding:46px 0 38px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
}