:root{
  --bg:#0a0a0f;
  --panel:#131326;
  --ink:#ecf3ff;
  --muted:#b2c3d6;
  --brand:#6dd6ff;
  --brand-ink:#07121a;
  --ring: rgba(109,214,255,.35);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,"Helvetica Neue",Arial,sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(140,60,255,.12), transparent 60%),
              radial-gradient(900px 500px at -10% 20%, rgba(0,180,255,.10), transparent 60%),
              var(--bg);
  color:var(--ink);
}
a{color:var(--brand);text-decoration:none}
img{max-width:100%;display:block}

/* Header / Nav */
.site-header{
  display:flex;align-items:center;justify-content:space-between;
  gap:1rem;padding:1rem 1.25rem;border-bottom:1px solid rgba(255,255,255,.06);
  position:sticky;top:0;background:rgba(10,10,15,.8);backdrop-filter:saturate(140%) blur(8px);z-index:10;
}
.brand{font-weight:800;letter-spacing:.2px;color:var(--ink)}
.site-nav{display:flex;gap:.8rem;align-items:center}
.site-nav a{padding:.5rem .8rem;border-radius:.6rem;color:var(--ink)}
.site-nav a:hover{background:rgba(255,255,255,.06)}
.site-nav a.cta{background:var(--brand);color:var(--brand-ink);font-weight:700}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:1.4rem}

@media (max-width: 800px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;inset:auto 1rem 1rem 1rem;flex-direction:column;gap:.4rem;
            background:var(--panel);padding:1rem;border-radius:1rem;border:1px solid rgba(255,255,255,.08);
            box-shadow:0 10px 30px rgba(0,0,0,.35);display:none}
  .site-nav.open{display:flex}
}

/* Hero */
.hero{min-height:62vh;display:grid;place-items:center;text-align:center;padding:5rem 1.25rem}
.hero-inner{max-width:950px}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.15;margin:.5rem 0}
.hero p{color:var(--muted);font-size:clamp(1rem,2.2vw,1.15rem)}
.actions{display:flex;gap:.8rem;justify-content:center;margin-top:1.25rem}
.btn{display:inline-block;padding:.75rem 1rem;border-radius:.8rem;background:var(--brand);color:var(--brand-ink);font-weight:800;border:1px solid rgba(255,255,255,.08);box-shadow:0 6px 20px rgba(109,214,255,.25)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn:hover{transform:translateY(-1px)}

/* Sections */
.section{padding:3rem 1.25rem;max-width:1100px;margin-inline:auto}
.section-title{font-size:1.6rem;margin-bottom:1rem}
.alt{background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00))}

.grid{display:grid;gap:1rem}
.cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--panel);padding:1.1rem;border-radius:1rem;border:1px solid rgba(255,255,255,.06)}
.card h3{margin-top:0}

.split{display:grid;gap:1.25rem;align-items:start;grid-template-columns:1fr 1fr}
@media (max-width:900px){.split{grid-template-columns:1fr}}

.ticks{list-style:none;padding-left:0}
.ticks li{position:relative;padding-left:1.6rem;margin:.35rem 0;color:var(--muted)}
.ticks li::before{content:"✔";position:absolute;left:.3rem;top:.05rem;color:var(--brand)}

/* Tech grid */
.tech-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}

/* Contact form */
.contact-form{max-width:720px}
.row{display:flex;flex-direction:column;margin:.6rem 0}
label{font-weight:600;margin-bottom:.2rem}
input,textarea{background:#0f0f1a;color:var(--ink);border:1px solid rgba(255,255,255,.12);border-radius:.6rem;padding:.7rem}
input:focus,textarea:focus{outline:3px solid var(--ring);border-color:var(--brand)}
.small{color:var(--muted);font-size:.9rem}

/* Footer */
.site-footer{padding:2rem 1.25rem;border-top:1px solid rgba(255,255,255,.06);text-align:center;color:var(--muted)}