:root{--bg:#0f1115;--fg:#e8ebf1;--muted:#a8b0c0;--brand:#39d0b2;--card:#171a21;--accent:#6ee7ff;}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:28px}
.nav{position:sticky;top:0;background:rgba(15,17,21,.8);backdrop-filter:blur(8px);border-bottom:1px solid #20242d;z-index:10}
.nav .inner{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.3px}
.logo-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--accent));display:inline-block}
.nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.hero{padding:96px 28px 40px;background:radial-gradient(1200px 600px at 15% -10%,rgba(57,208,178,.18),transparent),radial-gradient(1000px 600px at 90% 10%,rgba(110,231,255,.12),transparent)}
.hero h1{font-size:clamp(28px,6vw,48px);margin:0 0 8px}
.hero p{max-width:800px;color:var(--muted);font-size:clamp(15px,2.8vw,18px)}
.section{padding:44px 28px;border-top:1px solid #20242d}
.card{background:var(--card);border:1px solid #242a35;border-radius:16px;padding:22px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.footer{padding:36px 28px;border-top:1px solid #20242d;color:var(--muted);font-size:14px}
.footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.footer small{color:#8a93a5}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;background:var(--brand);color:#031;box-shadow:0 8px 24px rgba(57,208,178,.25);font-weight:600}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid #2a3342}
ul.clean{margin:10px 0 0 18px}
h2{margin:8px 0 14px;font-size:22px}
h3{margin:12px 0 8px;font-size:18px}
input,textarea{width:100%;padding:10px;border-radius:10px;border:1px solid #2a3342;background:#0c0f14;color:var(--fg)}
label{font-size:14px;color:var(--muted)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-row-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
hr{border:none;border-top:1px solid #20242d;margin:18px 0}

.logo-img{height:28px;width:auto;display:inline-block;vertical-align:middle}
.logo-text{font-weight:700;margin-left:10px}