*{box-sizing:border-box;font-family:Inter,system-ui,Arial}
body{margin:0;background:#0f172a;color:#e2e8f0}
.wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.card{width:100%;max-width:900px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
h1{margin:0 0 12px;color:#10b981}
p{margin:0 0 18px;line-height:1.6}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:800px){.grid{grid-template-columns:1fr}}
input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.15);color:#fff;margin-bottom:10px}
button{width:100%;padding:12px 14px;border-radius:10px;border:0;background:#10b981;color:#052e1f;font-weight:700;cursor:pointer}
button:hover{filter:brightness(.95)}
.small{font-size:.9rem;opacity:.9}
.msg{padding:10px 12px;border-radius:10px;margin:10px 0;border:1px solid rgba(255,255,255,.12)}
.msg.ok{background:rgba(16,185,129,.12)}
.msg.err{background:rgba(239,68,68,.12)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:900px){.plans{grid-template-columns:1fr}}
.plan{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px}
.plan h3{margin:0 0 8px;color:#fff}
.price{font-size:1.6rem;color:#10b981;font-weight:800;margin:8px 0}
a{color:#10b981;text-decoration:none}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}