/* ============ Base ============ */
:root{
  --bg:#0b1220;          /* deep navy */
  --surface:#101826;     /* card surface */
  --elev:#0f1524;        /* elevated surface */
  --text:#e5e7eb;        /* text primary */
  --muted:#9aa4b2;       /* text muted */
  --primary:#00e0b8;     /* teal */
  --accent:#6146ff;      /* indigo */
  --outline:#22304a;     /* outlines */
  --success:#22c55e;
  --radius:14px;
  --container:1120px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  line-height:1.6;
  color:var(--text);
  background:radial-gradient(1200px 800px at 80% -10%, rgba(97,70,255,.18), transparent 60%),
             radial-gradient(1200px 800px at -10% 120%, rgba(0,224,184,.14), transparent 60%),
             var(--bg);
}
.container{max-width:var(--container); margin-inline:auto; padding-inline:20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.7);backdrop-filter:blur(10px);border-bottom:1px solid var(--outline)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand-text{font-family:Poppins,Inter,system-ui; font-weight:600; letter-spacing:.5px}
.brand-mark{width:36px;height:36px;display:block}
.brand-mark.small{width:28px;height:28px}
.brand-image{height:32px;width:auto;display:block}
.brand-image.small{height:24px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--outline);background:transparent;color:var(--text)}
.primary-nav{display:flex;align-items:center;gap:10px}
.primary-nav .nav-link{padding:10px 12px;border-radius:10px;color:var(--text);text-decoration:none}
.primary-nav .nav-link:hover{background:rgba(255,255,255,.06)}
.nav-cta{display:flex;align-items:center;gap:10px}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:12px;text-decoration:none;border:1px solid transparent;transition:all .2s ease}
.btn-lg{padding:14px 20px;border-radius:14px}
.btn-primary{background:linear-gradient(90deg,var(--primary),var(--accent));color:#0b1220;font-weight:600}
.btn-primary:hover{filter:brightness(1.05)}
.btn-outline{border-color:var(--outline);color:var(--text);background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.06)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--outline)}
.btn-ghost:hover{background:rgba(255,255,255,.06)}

/* ============ Hero ============ */
.hero{padding:56px 0}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.hero h1{font-family:Poppins,Inter; font-size:clamp(28px,4.2vw,48px); line-height:1.15; margin:0 0 14px}
.hero p{margin:0 0 18px; color:var(--muted)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.trust-list{display:flex;flex-wrap:wrap;gap:14px;list-style:none;padding:0;margin:18px 0 0}
.trust-list li{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}
.trust-list svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:2}
.hero-visual{position:relative;min-height:320px;display:flex;align-items:flex-start;justify-content:flex-end}
.hero-banner{position:relative; z-index:2; display:block; width:min(360px, 88%); aspect-ratio:1/1; border-radius:16px; overflow:hidden; border:1px solid var(--outline); box-shadow:0 10px 40px rgba(0,0,0,.35); background:var(--surface); transform:translateZ(0); transition:transform .25s ease, box-shadow .25s ease, filter .25s ease}
.hero-banner img{width:100%; height:100%; object-fit:cover; display:block; transition:transform .25s ease}
.hero-banner:hover{box-shadow:0 16px 60px rgba(0,0,0,.45); filter:saturate(1.05)}
.hero-banner:hover img{transform:scale(1.02)}
.hero-banner:focus-visible{outline:2px solid var(--primary); outline-offset:3px}
.orb{position:absolute;border-radius:50%;filter:blur(8px);opacity:.85}
.orb-a{width:220px;height:220px;right:30px;top:0;background:radial-gradient(circle at 30% 30%,#00e0b8,transparent 70%)}
.orb-b{width:300px;height:300px;left:-10px;bottom:-20px;background:radial-gradient(circle at 30% 30%,#6146ff,transparent 70%)}
.card-ghost{position:absolute;right:10px;bottom:24px;background:var(--surface);border:1px solid var(--outline);box-shadow:0 10px 40px rgba(0,0,0,.35);border-radius:16px;padding:16px;width:min(340px,88%)}
.card-line{height:10px;border-radius:6px;background:linear-gradient(90deg,rgba(255,255,255,.08),rgba(255,255,255,.2))}
.card-line+.card-line{margin-top:10px}
.w40{width:40%}.w60{width:60%}.w70{width:70%}.w80{width:80%}

/* ============ Features ============ */
.features{padding:40px 0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:var(--surface);border:1px solid var(--outline);border-radius:16px;padding:20px}
.feature .icon{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06);margin-bottom:10px;color:var(--primary);font-weight:600}
.feature h3{margin:6px 0 6px;font-family:Poppins,Inter}
.feature p{color:var(--muted);margin:0}

/* ============ Steps ============ */
.how{padding:40px 0}
.steps h2{margin:0 0 16px;font-family:Poppins,Inter}
.step-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;list-style:none;margin:0;padding:0}
.step-list li{background:var(--elev);border:1px solid var(--outline);border-radius:16px;padding:18px}
.step-list h3{margin:0 0 6px}
.steps-cta{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}

/* ============ CTA Banner ============ */
.cta{padding:56px 0}
.cta-inner{background:linear-gradient(90deg,rgba(0,224,184,.1),rgba(97,70,255,.1));border:1px solid var(--outline);border-radius:20px;padding:28px;text-align:center}
.cta h2{margin:0 0 10px;font-family:Poppins,Inter}
.cta p{margin:0 0 16px;color:var(--muted)}

/* ============ FAQ ============ */
.faq{padding:40px 0}
.faq h2{margin:0 0 14px;font-family:Poppins,Inter}
.faq details{background:var(--surface);border:1px solid var(--outline);border-radius:14px;padding:14px 16px}
.faq details+details{margin-top:12px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin:10px 0 0;color:var(--muted)}

/* ============ Footer ============ */
.site-footer{border-top:1px solid var(--outline);padding:28px 0;background:rgba(10,16,28,.6);backdrop-filter:blur(6px)}
.footer-grid{display:flex;gap:24px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.brand-inline{display:flex;align-items:center;gap:10px}
.footer-links{display:flex;gap:14px;flex-wrap:wrap}
.footer-links a{color:var(--muted);text-decoration:none}
.footer-links a:hover{color:var(--text)}
.muted{color:var(--muted)}

/* ============ Responsive ============ */
@media (max-width: 960px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{order:-1;min-height:240px;justify-content:flex-start}
  .hero-banner{width:min(320px, 92%)}
  .grid-3{grid-template-columns:1fr 1fr}
  .step-list{grid-template-columns:1fr}
}
@media (max-width: 760px){
  .nav-toggle{display:inline-flex}
  .primary-nav{position:absolute;inset:64px 0 auto 0;display:none;flex-direction:column;gap:8px;padding:10px;background:rgba(11,18,32,.96);border-bottom:1px solid var(--outline)}
  .primary-nav.open{display:flex}
  .nav-cta{width:100%;gap:8px}
  .nav-cta .btn{flex:1}
}