/* Technical SEO Agency — global design system */
:root{
  --navy:#0a0e1a;
  --navy-2:#111a2e;
  --navy-3:#1a2540;
  --teal:#00c9a7;
  --teal-dark:#00a889;
  --blue:#3b6fe0;
  --ink:#10131c;
  --muted:#5b6472;
  --muted-2:#8891a3;
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --border:#e6e9f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px -12px rgba(10,14,26,0.15);
  --maxw:1180px;
  font-size:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.tsa-site{
  margin:0;
  font-family:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.tsa-site h1,.tsa-site h2,.tsa-site h3,.tsa-site h4{
  font-family:'Space Grotesk','Inter',system-ui,sans-serif;
  color:var(--navy);
  line-height:1.18;
  letter-spacing:-0.01em;
  margin:0 0 18px;
}
.tsa-site p{margin:0 0 16px;color:var(--ink)}
.tsa-site a{color:var(--blue)}
.tsa-site img{max-width:100%;display:block}
.tsa-container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.tsa-section{padding:72px 0}
.tsa-section.soft{background:var(--bg-soft)}
.tsa-section.dark{background:var(--navy);color:#dfe4f0}
.tsa-section.dark h1,.tsa-site .tsa-section.dark h2,.tsa-site .tsa-section.dark h3{color:#fff}
.tsa-section.dark p{color:#b9c2d6}
.tsa-eyebrow{
  display:inline-block;font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--teal-dark);background:rgba(0,201,167,.1);border:1px solid rgba(0,201,167,.35);
  padding:6px 14px;border-radius:999px;margin:0 0 18px;font-weight:600;
}
.dark .tsa-eyebrow{color:#7fffe0;background:rgba(0,201,167,.14);border-color:rgba(0,201,167,.4)}
.tsa-h1{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:700}
.tsa-h2{font-size:clamp(1.6rem,3.2vw,2.2rem);font-weight:700}
.tsa-lede{font-size:1.1rem;color:var(--muted);max-width:720px}
.dark .tsa-lede{color:#b9c2d6}

/* Buttons */
.tsa-btn{
  display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;
  font-weight:700;font-size:.95rem;text-decoration:none;border:none;cursor:pointer;
  transition:transform .15s,box-shadow .15s;
}
.tsa-btn-primary{background:linear-gradient(90deg,var(--teal),var(--blue));color:#05121a;}
.tsa-btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px -10px rgba(0,201,167,.5);}
.tsa-btn-ghost{background:transparent;color:var(--navy);border:1.5px solid var(--border);}
.tsa-btn-ghost:hover{border-color:var(--teal);color:var(--teal-dark)}
.dark .tsa-btn-ghost{color:#fff;border-color:rgba(255,255,255,.25)}
.dark .tsa-btn-ghost:hover{border-color:var(--teal)}

/* Header / nav */
.tsa-header{
  position:sticky;top:0;z-index:100;background:rgba(10,14,26,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.tsa-header-inner{max-width:var(--maxw);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.tsa-logo{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.08rem;color:#fff;text-decoration:none}
.tsa-logo em{color:#8891a3;font-style:normal;font-weight:500}
.tsa-nav{display:flex;align-items:center;gap:6px}
.tsa-nav ul{list-style:none;display:flex;gap:2px;margin:0;padding:0;align-items:center}
.tsa-nav>ul>li{position:relative}
.tsa-nav a{display:block;padding:10px 14px;color:#dfe4f0;text-decoration:none;font-size:.93rem;font-weight:500;border-radius:8px;white-space:nowrap}
.tsa-nav>ul>li>a:hover{color:#fff;background:rgba(255,255,255,.06)}
.tsa-nav .tsa-dropdown{position:absolute;top:100%;left:0;background:var(--navy-2);border:1px solid rgba(255,255,255,.1);
  border-radius:12px;padding:8px;min-width:240px;box-shadow:0 20px 40px -10px rgba(0,0,0,.5);
  opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .15s,transform .15s;}
.tsa-nav li:hover>.tsa-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.tsa-nav .tsa-dropdown a{padding:9px 12px;font-size:.88rem;border-radius:8px}
.tsa-nav .tsa-dropdown a:hover{background:rgba(255,255,255,.06);color:#fff}
.tsa-header-cta{display:flex;align-items:center;gap:14px}
.tsa-header-cta .tsa-btn{padding:10px 20px;font-size:.88rem}
.tsa-menu-toggle{display:none}
.tsa-menu-label{display:none;cursor:pointer;color:#fff;font-size:1.6rem;line-height:1}

@media (max-width:960px){
  .tsa-menu-label{display:block}
  .tsa-nav{position:fixed;inset:64px 0 0 0;background:var(--navy);flex-direction:column;align-items:stretch;
    padding:14px 20px;overflow-y:auto;transform:translateX(100%);transition:transform .25s;z-index:99}
  .tsa-nav ul{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .tsa-nav .tsa-dropdown{position:static;opacity:1;visibility:visible;transform:none;background:transparent;border:none;
    box-shadow:none;padding:0 0 0 14px;display:none;min-width:0}
  .tsa-nav li.tsa-has-dropdown.open .tsa-dropdown{display:block}
  .tsa-menu-toggle:checked ~ .tsa-nav{transform:translateX(0)}
  .tsa-header-cta .tsa-btn-ghost{display:none}
}

/* Stats bar */
.tsa-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px;padding-top:32px;border-top:1px solid rgba(255,255,255,.12)}
.tsa-stats div b{display:block;font-size:1.8rem;color:#fff;font-family:'Space Grotesk',sans-serif}
.tsa-stats div span{font-size:.85rem;color:#a9b2c6}
@media (max-width:700px){.tsa-stats{grid-template-columns:repeat(2,1fr)}}

/* Cards / grid */
.tsa-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:36px}
.tsa-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.tsa-grid.cols-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.tsa-grid.cols-4{grid-template-columns:repeat(2,1fr)}.tsa-grid.cols-2{grid-template-columns:1fr}}
@media (max-width:560px){.tsa-grid.cols-4{grid-template-columns:1fr}}
.tsa-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .2s,box-shadow .2s,border-color .2s}
.tsa-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(0,201,167,.35)}
.tsa-card .tsa-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(0,201,167,.15),rgba(59,111,224,.15));
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--teal-dark)}
.tsa-card h3{font-size:1.08rem;margin-bottom:8px}
.tsa-card p{color:var(--muted);font-size:.95rem;margin-bottom:0}
.tsa-card a.tsa-card-link{display:inline-block;margin-top:12px;font-size:.88rem;font-weight:700;color:var(--blue);text-decoration:none}

/* Process steps */
.tsa-steps{counter-reset:step;margin-top:32px}
.tsa-step{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--border)}
.tsa-step:last-child{border-bottom:none}
.tsa-step-num{flex:none;width:40px;height:40px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-family:'Space Grotesk',sans-serif}
.tsa-step h4{margin:0 0 6px;font-size:1.02rem}
.tsa-step p{margin:0;color:var(--muted);font-size:.95rem}

/* Split section */
.tsa-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media (max-width:860px){.tsa-split{grid-template-columns:1fr;gap:32px}}
.tsa-panel{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.dark .tsa-panel{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}

/* Tag / pill list */
.tsa-tags{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 0;padding:0}
.tsa-tags li{font-size:.85rem;color:var(--muted);padding:8px 14px;border-radius:999px;border:1px solid var(--border);background:var(--bg-soft)}

/* FAQ accordion (pure CSS, no JS) */
.tsa-faq{margin-top:32px;max-width:820px}
.tsa-faq details{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;padding:4px 20px}
.tsa-faq summary{padding:16px 30px 16px 0;font-weight:700;cursor:pointer;list-style:none;position:relative;color:var(--navy)}
.tsa-faq summary::-webkit-details-marker{display:none}
.tsa-faq summary::after{content:'+';position:absolute;right:0;top:14px;font-size:1.4rem;color:var(--teal-dark);transition:transform .2s}
.tsa-faq details[open] summary::after{transform:rotate(45deg)}
.tsa-faq .tsa-faq-a{padding:0 0 18px;color:var(--muted)}

/* CTA band */
.tsa-cta-band{background:linear-gradient(120deg,var(--navy),var(--navy-3));border-radius:24px;padding:56px;text-align:center;color:#fff}
.tsa-cta-band h2{color:#fff}
.tsa-cta-band p{color:#b9c2d6;max-width:600px;margin:0 auto 28px}

/* Breadcrumb */
.tsa-breadcrumb{font-size:.82rem;color:var(--muted-2);margin-bottom:18px}
.tsa-breadcrumb a{color:var(--muted-2);text-decoration:none}
.tsa-breadcrumb a:hover{color:var(--blue)}

/* Footer */
.tsa-footer{background:var(--navy);color:#b9c2d6;padding:64px 0 28px}
.tsa-footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px;margin-bottom:48px}
@media (max-width:900px){.tsa-footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.tsa-footer-grid{grid-template-columns:1fr}}
.tsa-footer h5{color:#fff;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.tsa-footer ul{list-style:none;margin:0;padding:0}
.tsa-footer li{margin-bottom:10px}
.tsa-footer a{color:#b9c2d6;text-decoration:none;font-size:.9rem}
.tsa-footer a:hover{color:var(--teal)}
.tsa-footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:12px;font-size:.82rem;color:#8891a3}

/* Hero decor orbs (kept subtle, no heavy JS/animation cost) */
.tsa-hero{position:relative;overflow:hidden}
.tsa-orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.28;pointer-events:none}
.tsa-orb-a{width:420px;height:420px;background:var(--teal);top:-160px;left:-100px}
.tsa-orb-b{width:460px;height:460px;background:var(--blue);bottom:-200px;right:-120px}

/* Utility */
.tsa-center{text-align:center}
.tsa-mx-auto{margin-left:auto;margin-right:auto}
.tsa-mt-0{margin-top:0}
@media (max-width:700px){.tsa-section{padding:52px 0}}