/* ============================================================
   Adperical shared stylesheet
   Used by all SEO/marketing sub-pages (services, industries,
   case studies, blog, about, contact). Matches the homepage
   design system: dark canvas, cyan accent, Space Grotesk.
   ============================================================ */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{background:#0A0A0F;color:#fff;font-family:'Space Grotesk',sans-serif;line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}

:root{
  --bg:#0A0A0F;
  --cyan:#00D4FF;
  --white:#FFFFFF;
  --grey:#8892A4;
  --card:#0F1623;
  --card-border:#1a2235;
  --font-sans:'Space Grotesk',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --max-w:1080px;
  --nav-h:64px;
}

.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.cyan{color:var(--cyan)}
.mono{font-family:var(--font-mono)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ===== NAV ===== */
.nav{position:fixed;top:0;left:0;width:100%;height:var(--nav-h);z-index:1000;background:rgba(10,10,15,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,212,255,.06)}
.nav-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-family:var(--font-mono);font-size:1.1rem;font-weight:700;letter-spacing:2px;color:var(--white)}
.nav-logo span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{font-size:.85rem;font-weight:500;color:var(--grey);transition:color .2s;letter-spacing:.4px}
.nav-links a:hover{color:var(--white)}
.nav-cta{background:var(--cyan);color:var(--bg)!important;padding:9px 20px;border-radius:6px;font-weight:600;font-size:.82rem;transition:box-shadow .3s,transform .2s}
.nav-cta:hover{box-shadow:0 0 24px rgba(0,212,255,.4);transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
.hamburger span{display:block;width:24px;height:2px;background:var(--white);transition:transform .3s,opacity .3s}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;top:var(--nav-h);left:0;width:100%;background:rgba(10,10,15,.98);backdrop-filter:blur(16px);padding:20px 24px;flex-direction:column;gap:6px;border-bottom:1px solid var(--card-border);max-height:calc(100vh - var(--nav-h));overflow-y:auto}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:1rem;color:var(--grey);padding:8px 0}
.mobile-menu a:hover{color:var(--white)}
.mobile-menu .nav-cta{text-align:center;margin-top:8px;color:var(--bg)!important}

/* ===== BREADCRUMB ===== */
.breadcrumb{font-family:var(--font-mono);font-size:.72rem;color:var(--grey);letter-spacing:.5px;margin-bottom:20px}
.breadcrumb a{color:var(--grey)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span{color:var(--cyan);opacity:.5;margin:0 8px}

/* ===== PAGE HEADER ===== */
.page-head{padding:calc(var(--nav-h) + 64px) 0 32px}
.eyebrow{font-family:var(--font-mono);font-size:.72rem;color:var(--cyan);text-transform:uppercase;letter-spacing:3px;margin-bottom:14px}
h1.page-title{font-size:clamp(2rem,4.5vw,3rem);font-weight:700;line-height:1.12;max-width:820px;margin-bottom:22px}
h1.page-title .accent{color:var(--cyan)}

/* ===== ANSWER BLOCK (AI-citable summary) ===== */
.answer{background:var(--card);border:1px solid var(--card-border);border-left:3px solid var(--cyan);border-radius:10px;padding:22px 26px;max-width:780px;margin-bottom:8px}
.answer p{font-size:1.05rem;color:#cfd6e2;line-height:1.7}
.answer p strong{color:var(--white)}

/* ===== CONTENT SECTIONS ===== */
.section{padding:48px 0;border-top:1px solid var(--card-border)}
.section:first-of-type{border-top:none}
.section h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:700;margin-bottom:18px;max-width:760px;line-height:1.2}
.section h3{font-size:1.15rem;font-weight:600;margin:26px 0 10px;color:var(--white)}
.section p{font-size:1rem;color:var(--grey);line-height:1.8;margin-bottom:16px;max-width:780px}
.section p strong{color:var(--white)}
.section ul.bullets{margin:0 0 18px;max-width:780px}
.section ul.bullets li{font-size:1rem;color:var(--grey);line-height:1.7;padding-left:22px;position:relative;margin-bottom:8px}
.section ul.bullets li::before{content:'›';position:absolute;left:2px;color:var(--cyan);font-weight:700}
.section ul.bullets li strong{color:var(--white)}
.section a.inline{color:var(--cyan);border-bottom:1px solid rgba(0,212,255,.3)}
.section a.inline:hover{border-color:var(--cyan)}

/* ===== CARD GRID ===== */
.grid{display:grid;gap:20px;margin:8px 0 8px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--card-border);border-radius:12px;padding:26px;transition:border-color .3s,transform .3s}
.card:hover{border-color:rgba(0,212,255,.3);transform:translateY(-4px)}
.card h3{font-size:1.1rem;font-weight:600;margin-bottom:8px}
.card p{font-size:.9rem;color:var(--grey);line-height:1.6;margin:0}
.card .tag{font-family:var(--font-mono);font-size:.62rem;color:var(--cyan);text-transform:uppercase;letter-spacing:2px;margin-bottom:10px;display:block}
a.card{display:block}

/* ===== ARTICLE / TOC ===== */
.article-meta{font-family:var(--font-mono);font-size:.78rem;color:var(--grey);margin:18px 0 0}
.toc{background:var(--card);border:1px solid var(--card-border);border-radius:10px;padding:20px 24px;max-width:560px;margin-top:24px}
.toc-title{font-size:.78rem!important;text-transform:uppercase;letter-spacing:1.5px;color:var(--white);margin-bottom:12px!important;font-family:var(--font-mono)}
.toc ol{margin:0;padding-left:20px}
.toc li{font-size:.92rem;color:var(--grey);line-height:1.6;margin-bottom:6px}
.toc a{color:var(--cyan)}
.toc a:hover{text-decoration:underline}
.section h2{scroll-margin-top:84px}

/* ===== FAQ ===== */
.faq{max-width:820px}
.faq-item{border:1px solid var(--card-border);border-radius:10px;padding:20px 24px;margin-bottom:12px;background:var(--card)}
.faq-item h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:var(--white)}
.faq-item p{font-size:.95rem;color:var(--grey);line-height:1.7;margin:0}

/* ===== CTA BAND ===== */
.cta-band{background:linear-gradient(180deg,#080812 0%,var(--bg) 100%);border-top:1px solid var(--card-border);text-align:center;padding:64px 0}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;margin-bottom:16px;max-width:680px;margin-left:auto;margin-right:auto}
.cta-band p{color:var(--grey);max-width:560px;margin:0 auto 28px;line-height:1.7}
.btn-primary{display:inline-block;background:var(--cyan);color:var(--bg)!important;padding:14px 32px;border-radius:6px;font-weight:600;font-size:1rem;transition:box-shadow .3s,transform .2s}
.btn-primary:hover{box-shadow:0 0 32px rgba(0,212,255,.45);transform:translateY(-2px)}
.btn-ghost{display:inline-block;background:transparent;color:var(--white);padding:14px 32px;border-radius:6px;font-weight:600;font-size:1rem;border:1px solid rgba(255,255,255,.2);transition:border-color .3s,transform .2s}
.btn-ghost:hover{border-color:var(--cyan);transform:translateY(-2px)}
.btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== RELATED LINKS ===== */
.related-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.related-links a{font-size:.9rem;color:var(--cyan);border:1px solid var(--card-border);border-radius:20px;padding:8px 16px;transition:border-color .3s,background .3s}
.related-links a:hover{border-color:var(--cyan);background:rgba(0,212,255,.06)}

/* ===== FOOTER ===== */
.footer{background:var(--bg);border-top:1px solid var(--card-border);padding:48px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-logo{font-family:var(--font-mono);font-size:1.1rem;font-weight:700;letter-spacing:2px;margin-bottom:12px;color:var(--white)}
.footer-logo span{color:var(--cyan)}
.footer-col h4{font-size:.78rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--white);margin-bottom:14px;font-family:var(--font-mono)}
.footer-col a{display:block;font-size:.85rem;color:var(--grey);padding:4px 0;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-col p{font-size:.85rem;color:var(--grey);line-height:1.7}
.footer-bottom{border-top:1px solid var(--card-border);padding-top:20px;text-align:center}
.footer-bottom p{color:var(--grey);font-size:.78rem;margin-bottom:6px}
.footer-bottom a{color:var(--grey)}
.footer-bottom a:hover{color:var(--cyan)}

/* ===== RESPONSIVE ===== */
@media(max-width:860px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:920px){
  .nav-links{display:none}
  .hamburger{display:flex}
}
@media(max-width:680px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .page-head{padding:calc(var(--nav-h) + 40px) 0 24px}
}