:root{
  --bg:#0b1211;
  --card:#0e1716;
  --muted:#a7b3b1;
  --text:#eaf3f1;
  --accent:#0f766e;  /* teal-700 */
  --accent-2:#14b8a6; /* teal-500 */
  --ring: rgba(20,184,166,.35);
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family: ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,Arial;
  background: radial-gradient(1200px 600px at 10% -10%, rgba(20,184,166,.12), transparent 60%), var(--bg);
  color:var(--text);
}

.container{max-width:1100px;margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section.alt{background:linear-gradient(180deg, rgba(255,255,255,.02), transparent)}
.center{text-align:center}
.mt-1{margin-top:.75rem}
.mt-3{margin-top:1.5rem}
.w-100{width:100%}
.small{font-size:.9rem}
.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:16px}
.shadow{box-shadow:var(--shadow)}
header.site-header{
  position:sticky;top:0;z-index:50;background:rgba(11,18,17,.7);backdrop-filter: blur(8px);
  border-bottom:1px solid rgba(255,255,255,.06)
}
.header-wrap{display:flex;align-items:center;gap:18px;padding:14px 0}
.logo{font-weight:800;letter-spacing:.3px}
.logo span{color:var(--accent-2)}
.nav{display:none;gap:16px}
.nav a,.foot-links a{color:var(--muted);text-decoration:none}
.cta-wrap{margin-left:auto;display:flex;gap:10px;align-items:center}

.hero{padding:72px 0}
.hero-grid{display:grid;grid-template-columns:1.2fr .9fr;gap:28px;align-items:center}
h1{font-size:clamp(28px,4vw,44px);line-height:1.1;margin:.2em 0 .4em}
.lead{font-size:1.1rem;max-width:55ch}
.hero-cta{display:flex;gap:12px;margin:20px 0 10px}
.trust{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);padding:0;margin:12px 0 0;list-style:none}
.card h3{margin:18px 18px 8px}
.form{padding:18px}
.form label{display:block;font-size:.95rem;margin:10px 0}
input,select{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.12);
  background:#0b1413;color:var(--text);outline: none;
}
input:focus,select:focus{box-shadow:0 0 0 4px var(--ring);border-color:var(--accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;padding:12px 16px;text-decoration:none;border:1px solid transparent;
  cursor:pointer;font-weight:600
}
.btn.primary{background:var(--accent);color:white;border-color:rgba(255,255,255,.08)}
.btn.secondary{background:transparent;color:var(--text);border:1px solid rgba(255,255,255,.18)}
.btn.ghost{background:transparent;color:var(--accent-2);border:1px solid rgba(20,184,166,.35)}
.btn:focus-visible{outline: none; box-shadow:0 0 0 4px var(--ring)}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
.feature{padding:18px;border:1px solid rgba(255,255,255,.06);border-radius:14px;background:rgba(255,255,255,.02)}
.stepper{counter-reset:step;list-style:none;padding:0;margin:12px 0}
.stepper li{position:relative;margin:14px 0;padding-left:46px}
.stepper li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;
  background:var(--accent);display:grid;place-items:center;font-weight:700;
}

.section.install{background:linear-gradient(90deg, rgba(20,184,166,.08), transparent 60%), var(--card);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.install-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}

.quote{padding:18px;border:1px solid rgba(255,255,255,.06);border-radius:14px;background:rgba(255,255,255,.02)}

.site-footer{padding:28px 0;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:flex;gap:18px;align-items:center;justify-content:space-between}

@media (max-width: 900px){
  .nav{display:none}
  .hero-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .install-wrap{flex-direction:column;align-items:flex-start}
}