/* ===========================================================================
   RoofingJersey.com — "Slate & Clay Blueprint" design system
   World-class, responsive, accessible. No external CSS deps.
   =========================================================================== */

:root{
  /* palette */
  --ink:#13233B;
  --navy:#1C3A5E;
  --steel:#3E6B9A;
  --azure:#2F73C2;
  --azure-deep:#225a9c;
  --clay:#C25A35;
  --clay-deep:#A8421F;
  --paper:#F4F7FB;
  --panel:#FFFFFF;
  --mist:#E7EEF6;
  --mist-2:#DCE7F3;
  --line:#D2DDEA;
  --line-soft:#E3EAF3;
  --text:#22364C;
  --muted:#5B6B80;
  --muted-2:#7C8AA0;
  --good:#2E7D5B;
  --warn:#C25A35;

  /* type */
  --display:'Sora',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --body:system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,'DejaVu Sans Mono','SFMono-Regular',Menlo,Consolas,monospace;

  /* scale */
  --wrap:1180px;
  --wrap-narrow:760px;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(19,35,59,.06),0 2px 8px rgba(19,35,59,.05);
  --shadow:0 6px 22px rgba(19,35,59,.10);
  --shadow-lg:0 18px 50px rgba(19,35,59,.16);
  --gap:clamp(1rem,2.5vw,2rem);
  --header-h:70px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}

body{
  margin:0;font-family:var(--body);color:var(--text);background:var(--paper);
  line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--azure-deep);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
p{margin:0 0 1.1em}
:focus-visible{outline:3px solid var(--azure);outline-offset:2px;border-radius:4px}
::selection{background:var(--clay);color:#fff}

/* layout helpers */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}
.narrow{max-width:var(--wrap-narrow)}
.section{padding:clamp(3rem,7vw,5.5rem) 0}
.section--tint{background:var(--mist)}
.section--ink{background:var(--ink);color:#dce6f2}
.center{text-align:center}
.lead{font-size:1.18rem;color:var(--muted);max-width:62ch}
.center .lead{margin-left:auto;margin-right:auto}

/* eyebrow — blueprint label (signature) */
.eyebrow{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--clay);font-weight:600;display:inline-flex;align-items:center;gap:.55rem;margin:0 0 1rem
}
.eyebrow::before{content:"";width:26px;height:0;border-top:2px solid var(--clay);transform:skewY(-18deg);display:inline-block}
.section--ink .eyebrow{color:#e7a98f}
.section--ink .eyebrow::before{border-color:#e7a98f}
.section--ink h2,.section--ink h3{color:#fff}
.section--ink .lead{color:#aebfd4}

/* pitch-line divider (signature roof apex rule) */
.pitchline{height:18px;width:100%;color:var(--line);
  background:linear-gradient(var(--paper),var(--paper));position:relative}
.pitchline svg{position:absolute;inset:0;width:100%;height:100%}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--display);font-weight:600;
  font-size:1rem;padding:.85rem 1.45rem;border-radius:999px;border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;text-decoration:none;line-height:1}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn--primary{background:var(--clay);color:#fff;box-shadow:0 8px 20px rgba(194,90,53,.32)}
.btn--primary:hover{background:var(--clay-deep)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--steel);background:var(--panel)}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{background:#eef3fa}
.btn--sm{padding:.6rem 1.05rem;font-size:.92rem}
.btn--block{display:flex;width:100%;justify-content:center}

/* ============================ HEADER ============================ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(244,247,251,.86);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line-soft);transition:box-shadow .2s,background .2s}
.site-header.is-stuck{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.92)}
.header-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:.6rem;flex:0 0 auto}
.brand svg{height:34px;width:auto}
.brand:hover{text-decoration:none}
.nav{display:flex;align-items:center;gap:.35rem}
.nav a{font-family:var(--display);font-weight:500;font-size:.96rem;color:var(--ink);padding:.5rem .7rem;border-radius:8px;position:relative}
.nav a:hover{background:var(--mist);text-decoration:none}
.nav a[aria-current="page"]{color:var(--clay-deep)}
.nav .btn{color:#fff}
.nav .btn:hover{color:#fff}
.nav-cta{margin-left:.4rem}
.menu-toggle{display:none;background:none;border:1.5px solid var(--line);border-radius:10px;width:46px;height:42px;
  align-items:center;justify-content:center;cursor:pointer;color:var(--ink)}
.menu-toggle svg{width:22px;height:22px}

@media (max-width:920px){
  .menu-toggle{display:inline-flex}
  .nav{position:fixed;inset:var(--header-h) 0 auto 0;flex-direction:column;align-items:stretch;gap:.15rem;
    background:var(--panel);border-bottom:1px solid var(--line);padding:1rem clamp(1rem,4vw,2rem) 1.4rem;
    box-shadow:var(--shadow);transform:translateY(-120%);transition:transform .28s ease;max-height:calc(100vh - var(--header-h));overflow:auto}
  .nav.open{transform:translateY(0)}
  .nav a{padding:.85rem .6rem;font-size:1.05rem;border-bottom:1px solid var(--line-soft)}
  .nav-cta{margin:.6rem 0 0}
  .nav .btn{justify-content:center}
}

/* ============================ HERO ============================ */
.hero{position:relative;background:
   radial-gradient(1100px 520px at 80% -10%,rgba(62,107,154,.18),transparent 60%),
   linear-gradient(180deg,var(--paper),var(--mist));overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center;
  padding:clamp(2.6rem,6vw,4.8rem) 0 clamp(2rem,5vw,3.6rem)}
.hero h1{margin-bottom:.5em}
.hero .lead{margin-bottom:1.6rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem}
.hero-stats{display:flex;flex-wrap:wrap;gap:.6rem clamp(1.6rem,4vw,3rem);margin-top:2.1rem;padding-top:1.6rem;border-top:1px solid var(--line)}
.stat{margin-right:2.2rem;margin-right:clamp(1.6rem,4vw,3rem)}
.stat:last-child{margin-right:0}
.stat .n{font-family:var(--display);font-weight:800;font-size:1.7rem;color:var(--ink);line-height:1}
.stat .l{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:.35rem}
.hero-art{position:relative}
.hero-art .frame{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line);background:#cfe0f2}
.hero-badge{position:absolute;left:-14px;bottom:18px;background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);padding:.7rem .95rem;display:flex;align-items:center;gap:.6rem;font-size:.85rem;max-width:230px}
.hero-badge b{font-family:var(--display)}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}.hero-art{order:-1}.hero-badge{display:none}}

/* ============================ CARDS / GRIDS ============================ */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease,border-color .18s;box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--mist-2)}
.card a.cover{display:block;aspect-ratio:16/9;background:var(--mist);overflow:hidden}
.card a.cover svg,.card a.cover img{width:100%;height:100%;object-fit:cover}
.card-body{padding:1.15rem 1.25rem 1.35rem;display:flex;flex-direction:column;flex:1}
.card .kicker{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--clay);margin-bottom:.5rem}
.card h3{font-size:1.18rem;margin-bottom:.4rem}
.card h3 a{color:var(--ink)}
.card h3 a:hover{color:var(--azure-deep);text-decoration:none}
.card p{color:var(--muted);font-size:.97rem;margin-bottom:1rem}
.card .meta{margin-top:auto;display:flex;align-items:center;gap:.6rem;font-size:.82rem;color:var(--muted-2);font-family:var(--mono)}
.card .meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.card--feature{grid-column:span 2}
@media (max-width:640px){.card--feature{grid-column:span 1}}

.pill{display:inline-block;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  background:var(--mist);color:var(--navy);border:1px solid var(--line);border-radius:999px;padding:.3rem .65rem}

/* feature list / value props */
.feature{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.5rem;box-shadow:var(--shadow-sm)}
.feature .ic{width:46px;height:46px;border-radius:12px;background:var(--mist);display:grid;place-items:center;margin-bottom:1rem}
.feature .ic svg{width:26px;height:26px}
.feature h3{font-size:1.15rem;margin-bottom:.4rem}
.feature p{color:var(--muted);font-size:.96rem;margin:0}

/* ============================ ARTICLE ============================ */
.article-head{background:linear-gradient(180deg,var(--mist),var(--paper));border-bottom:1px solid var(--line-soft);padding-top:1.4rem}
.breadcrumb{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;color:var(--muted);margin-bottom:1rem;display:flex;flex-wrap:wrap;gap:.4rem;align-items:center}
.breadcrumb a{color:var(--muted)}
.breadcrumb .sep{color:var(--line)}
.article-head h1{max-width:18ch}
.article-meta{display:flex;flex-wrap:wrap;gap:.5rem 1.1rem;align-items:center;color:var(--muted);font-size:.9rem;margin:1rem 0 1.4rem;font-family:var(--mono)}
.article-cover{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);margin-bottom:.4rem;aspect-ratio:1200/520;background:var(--mist)}
.article-cover svg,.article-cover img{width:100%;height:100%;object-fit:cover}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(1.5rem,4vw,3rem);align-items:start;padding:clamp(2rem,5vw,3.4rem) 0}
.article-body{max-width:74ch}
.article-body h2{margin-top:2.2rem;padding-top:.4rem;scroll-margin-top:90px}
.article-body h3{margin-top:1.6rem;scroll-margin-top:90px}
.article-body h2::before{content:"";display:block;width:42px;height:3px;background:var(--clay);border-radius:2px;margin-bottom:.7rem}
.article-body p,.article-body li{font-size:1.06rem}
.article-body ul,.article-body ol{padding-left:1.25rem;margin:0 0 1.2em}
.article-body li{margin-bottom:.5em}
.article-body strong{color:var(--ink)}
.article-body figure{margin:1.8rem 0}
.article-body figure svg,.article-body figure img{border-radius:var(--radius);border:1px solid var(--line);background:var(--mist);width:100%}
.article-body figcaption{font-family:var(--mono);font-size:.78rem;color:var(--muted);margin-top:.6rem;letter-spacing:.02em}
.article-body a{text-decoration:underline;text-underline-offset:2px}
.article-body blockquote{margin:1.6rem 0;padding:1rem 1.3rem;border-left:4px solid var(--clay);background:var(--mist);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);font-style:normal}
.article-body blockquote p:last-child{margin:0}

.callout{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:1.2rem 1.35rem;margin:1.8rem 0;box-shadow:var(--shadow-sm)}
.callout .tag{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--clay);margin-bottom:.45rem;display:block}
.callout.tip{border-left:4px solid var(--azure)}
.callout.tip .tag{color:var(--azure-deep)}
.callout.warn{border-left:4px solid var(--clay)}
.callout p:last-child{margin:0}

/* table of contents */
.toc{position:sticky;top:calc(var(--header-h) + 16px);background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.25rem;box-shadow:var(--shadow-sm)}
.toc .toc-h{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:.8rem}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc li{counter-increment:toc;margin-bottom:.15rem}
.toc a{display:block;font-size:.9rem;color:var(--text);padding:.4rem .55rem;border-radius:8px;border-left:2px solid transparent}
.toc a::before{content:counter(toc,decimal-leading-zero);font-family:var(--mono);font-size:.72rem;color:var(--clay);margin-right:.55rem}
.toc a:hover{background:var(--mist);text-decoration:none}
.toc a.active{background:var(--mist);border-left-color:var(--clay);color:var(--ink);font-weight:600}
.aside-stack{display:flex;flex-direction:column;gap:1.2rem}
@media (max-width:900px){.article-layout{grid-template-columns:1fr}.aside-stack{display:none}}

/* FAQ */
.faq{margin:1.4rem 0}
.faq details{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);margin-bottom:.7rem;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:1rem 1.2rem;font-family:var(--display);font-weight:600;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--clay);transition:transform .2s;line-height:1}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{padding:0 1.2rem 1.1rem;color:var(--text)}
.faq .faq-a p:last-child{margin:0}

/* affiliate product cards */
.product{display:grid;grid-template-columns:96px 1fr;gap:1rem;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:1rem 1.15rem;box-shadow:var(--shadow-sm);align-items:center}
.product .thumb{width:96px;height:96px;border-radius:12px;background:var(--mist);display:grid;place-items:center;overflow:hidden}
.product .thumb svg{width:100%;height:100%}
.product h4{font-family:var(--display);font-size:1.02rem;color:var(--ink);margin:0 0 .25rem}
.product p{font-size:.9rem;color:var(--muted);margin:0 0 .6rem}
.product .why{font-size:.86rem;color:var(--muted)}
.product .row{display:flex;align-items:center;justify-content:space-between;gap:.6rem;flex-wrap:wrap}
.product .pill{margin-bottom:0}
@media (max-width:520px){.product{grid-template-columns:1fr}.product .thumb{width:100%;height:120px}}

.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
@media (max-width:760px){.product-grid{grid-template-columns:1fr}}

.aff-note{font-size:.82rem;color:var(--muted);background:var(--mist);border:1px dashed var(--line);border-radius:var(--radius-sm);
  padding:.7rem .9rem;margin:1.2rem 0;font-family:var(--body)}

/* tables */
.table-wrap{overflow-x:auto;margin:1.6rem 0;border:1px solid var(--line);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;min-width:480px;font-size:.96rem;background:var(--panel)}
th,td{padding:.8rem 1rem;text-align:left;border-bottom:1px solid var(--line-soft)}
thead th{background:var(--ink);color:#fff;font-family:var(--display);font-weight:600;font-size:.86rem;letter-spacing:.01em}
tbody tr:nth-child(even){background:var(--paper)}
tbody tr:last-child td{border-bottom:none}

/* ad slots */
.ad-slot{margin:2rem auto;max-width:100%;text-align:center;min-height:90px;display:flex;flex-direction:column;justify-content:center}
.ad-slot .ad-label{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);margin-bottom:.4rem}
.ad-slot ins{display:block}

/* breadcrumb-jump / next-prev */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2.5rem;padding-top:1.6rem;border-top:1px solid var(--line)}
.post-nav a{display:block;padding:1rem 1.15rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.post-nav a:hover{border-color:var(--steel);text-decoration:none;box-shadow:var(--shadow-sm)}
.post-nav .dir{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--clay)}
.post-nav .t{font-family:var(--display);font-weight:600;color:var(--ink);margin-top:.3rem;display:block}
.post-nav .nx{text-align:right}
@media (max-width:560px){.post-nav{grid-template-columns:1fr}.post-nav .nx{text-align:left}}

/* contact form */
.form{display:grid;gap:1rem;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.4rem,3vw,2rem);box-shadow:var(--shadow-sm)}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-family:var(--display);font-weight:600;font-size:.92rem;color:var(--ink)}
.field input,.field textarea,.field select{font-family:var(--body);font-size:1rem;padding:.8rem .95rem;border:1.5px solid var(--line);
  border-radius:10px;background:var(--paper);color:var(--text)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--azure);background:#fff}

/* prose for legal pages */
.prose{max-width:var(--wrap-narrow);margin:0 auto}
.prose h2{margin-top:2rem}
.prose h2::before{content:"";display:block;width:38px;height:3px;background:var(--clay);border-radius:2px;margin-bottom:.6rem}
.prose ul{padding-left:1.2rem}
.prose .updated{font-family:var(--mono);font-size:.8rem;color:var(--muted);margin-bottom:1.6rem}

/* ============================ FOOTER ============================ */
.site-footer{background:var(--ink);color:#aebfd4;padding:clamp(2.6rem,6vw,4rem) 0 1.6rem;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.footer-brand svg{height:34px;margin-bottom:1rem}
.footer-brand p{color:#92a6c0;font-size:.95rem;max-width:34ch}
.footer-col h4{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:#7e93b1;margin:0 0 1rem;font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:.55rem}
.footer-col a{color:#c3d2e6;font-size:.95rem}
.footer-col a:hover{color:#fff}
.footer-disclosure{border-top:1px solid #25405f;border-bottom:1px solid #25405f;margin:2.2rem 0 1.4rem;padding:1.3rem 0;
  font-size:.84rem;color:#8fa3c0;line-height:1.6}
.footer-disclosure strong{color:#cddaec}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;align-items:center;font-size:.84rem;color:#7e93b1}
.footer-bottom a{color:#9fb2cd}
.footer-legal-links{display:flex;flex-wrap:wrap;gap:.4rem 1rem}
@media (max-width:820px){.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media (max-width:520px){.footer-top{grid-template-columns:1fr}}

/* scroll-to-top FAB (roof chevron) */
.to-top{position:fixed;right:18px;bottom:18px;z-index:55;width:50px;height:50px;border-radius:14px;border:none;cursor:pointer;
  background:var(--clay);color:#fff;box-shadow:var(--shadow);display:grid;place-items:center;opacity:0;visibility:hidden;
  transform:translateY(12px);transition:opacity .25s,transform .25s,background .2s}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--clay-deep)}
.to-top svg{width:22px;height:22px}

/* misc */
.tag-row{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.4rem 0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.7rem 1rem;border-radius:0 0 8px 0;z-index:100}
.skip-link:focus{left:0}
.divider{height:1px;background:var(--line);border:0;margin:2rem 0}
.muted{color:var(--muted)}
.hl{background:linear-gradient(180deg,transparent 62%,rgba(194,90,53,.22) 0);padding:0 .1em}
.cta-band{background:linear-gradient(135deg,var(--navy),var(--ink));color:#fff;border-radius:var(--radius-lg);
  padding:clamp(1.8rem,4vw,3rem);text-align:center;box-shadow:var(--shadow)}
.cta-band h2{color:#fff}.cta-band .lead{color:#b9c9de;margin:0 auto 1.4rem}

/* ad zones for Google Auto Ads + utility icons */
.ad-zone{margin:2.6rem auto;min-height:1px}
.ic-svg{width:24px;height:24px}
.ic-inline{width:18px;height:18px;vertical-align:-3px;display:inline-block}
.feature .ic svg{width:26px;height:26px}
.product .thumb svg{width:100%;height:100%}