:root{
  --bg:#000000;
  --panel:#0b0b0b;
  --text:#ffffff;
  --muted:#c9c9c9;
  --green:#2ecc71; /* Adjust if you prefer another green tone */
  --green-strong:#25a44e;
  --ring:rgba(46,204,113,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto;line-height:1.5}
a{color:var(--green);text-decoration:none}
a:hover{opacity:.9}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.header{padding:28px 0;border-bottom:1px solid rgba(255,255,255,.08);background:linear-gradient(180deg, rgba(255,255,255,.03), transparent)}
.logo-wrap{display:grid;place-items:center}
.logo-wrap img{max-width:360px;width:90%;height:auto}
.nav{display:flex;gap:16px;justify-content:center;margin:14px 0 0}
.nav a{padding:8px 12px;border-radius:10px;color:var(--muted)}
.nav a.active,.nav a:hover{color:var(--text);background:#111}

.section{padding:56px 0}
.section h2{margin:0 0 18px;font-size:30px;text-align:center}
.lead{color:var(--muted);text-align:center;max-width:800px;margin:0 auto 16px}

.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
.card{background:#0f0f0f;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px}
.card h3{margin-top:0;color:var(--green)}
.card p{color:#e8e8e8}

.contact{display:grid;grid-template-columns:2fr 1fr;gap:22px;align-items:start}
.form{display:flex;flex-direction:column;gap:12px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
input,textarea{width:100%;background:#0f0f0f;border:1px solid rgba(255,255,255,.14);color:var(--text);padding:12px;border-radius:10px;outline:none}
input:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 4px var(--ring)}
.btn{display:inline-block;background:var(--green);color:#000;padding:12px 16px;border-radius:10px;border:none;font-weight:700;cursor:pointer}
.btn:hover{background:var(--green-strong)}
.small{color:var(--muted);font-size:13px}
.aside{background:#0f0f0f;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px}
.aside img{width:100%;height:auto;border-radius:10px;border:1px solid rgba(255,255,255,.08);background:#fff}
.list{list-style:none;margin:0;padding:0}
.list li{margin:6px 0}
.footer{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;color:var(--muted);text-align:center;margin-top:30px}

@media (max-width: 900px){
  .grid-cards{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .logo-wrap img{max-width:260px}
}