:root{
  --bg:#0b1220;--card:#121a2b;--muted:#a9b3c7;--text:#eaf0ff;--accent:#4da3ff;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Arial;color:var(--text);background:var(--bg)}
.container{max-width:960px;margin:0 auto;padding:16px}
header{max-width:960px;margin:24px auto 0;padding:0 16px}
h1{margin:.2rem 0 0;font-size:clamp(22px,3.5vw,36px)}
.muted{color:var(--muted)}
.grid{display:grid;gap:16px}
@media(min-width:900px){.grid{grid-template-columns:2fr 1fr}}
.card{background:#10172b;border:1px solid rgba(255,255,255,.06);border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.card .content{padding:18px}
.input,.select{width:100%;padding:14px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:#0f182b;color:var(--text);font-size:18px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{cursor:pointer;border:1px solid rgba(255,255,255,.1);background:#0f182b;color:var(--text);padding:14px 18px;border-radius:12px;font-weight:600}
.btn.primary{background:linear-gradient(90deg,var(--accent),#5d77ff);border-color:transparent}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.result{font-weight:700}
footer{max-width:960px;margin:16px auto 40px;padding:0 16px;color:var(--muted);font-size:13px}
a{color:var(--accent);text-decoration:none}
nav a{margin-right:12px}
.badge{font-size:12px;padding:6px 8px;border:1px solid rgba(255,255,255,.12);border-radius:999px;color:#a9b3c7}

/* New converter layout */
.converter{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:end}
.block{background:#10172b;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px}
.block label{display:block;font-size:14px;color:#a9b3c7;margin-bottom:6px}
.block .input{width:100%}
.swap{align-self:center;display:flex;align-items:center;justify-content:center}
.swap .btn{padding:10px 12px;border-radius:999px}
.output{opacity:.95}
.output .input[readonly]{opacity:.85;cursor:not-allowed}
.actions{margin-top:12px;display:flex;gap:12px}

/* Ad */
.ads-center{margin:20px auto;display:block;text-align:center}