/* Dark Neon Style */
body{margin:0;background:#0a0c0d;color:#dfe6ee;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',sans-serif}
.wrap{max-width:1100px;margin:0 auto;padding:16px}
.panel{background:#0f1113;border:1px solid #171a1f;border-radius:14px;box-shadow:0 10px 22px rgba(0,0,0,.45);padding:16px;margin:12px 0}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.field label{display:block;font-size:12px;color:#8da1b5;margin:0 0 6px 2px}
.field input{width:100%;padding:10px 12px;border:1px solid #2a2f36;border-radius:10px;background:#0c0f12;color:#e6f0ff;font-size:14px}
button{background:#1ed760;color:#0a0c0d;border:0;border-radius:10px;padding:12px 18px;font-weight:800;cursor:pointer}
button:disabled{background:#2a3a30;color:#8fbfa6;cursor:not-allowed}

/* Preview */
.preview.dark{display:flex;flex-direction:column;align-items:center}
.neon{width:420px;border-radius:16px;overflow:hidden;position:relative;background:radial-gradient(120% 60% at 50% -20%,#123526 0%,#0b0e0f 60%,#0a0c0d 100%);border:1px solid #1a1f25}
.top-amount{padding:20px 20px 8px;text-align:center}
.amt{color:#53f399;font-weight:900;font-size:34px}
.to{color:#b8c7d6;margin-top:4px}
.muted{color:#6f8396;font-size:12px;margin-top:2px}
.card{margin:16px;border-radius:14px;border:1px solid #232a31;background:#0f1316;box-shadow:0 0 0 1px #0f1316 inset;padding:14px}
.card-title{font-weight:800}
.kv{display:flex;justify-content:space-between;color:#c8d4e0;margin:8px 0;font-size:13px}
.steps{margin-top:10px}
.step{display:flex;align-items:center;gap:10px;color:#e8f3ff;margin:8px 0}
.step .dot{display:inline-flex;width:20px;height:20px;border-radius:999px;align-items:center;justify-content:center;background:#0e2a1c;color:#1ed760;border:1px solid #1ed760;font-size:12px}
.speed{margin:8px auto 16px;background:#0e2a1c;color:#89f0b8;border:1px solid #1ed760;width:max-content;padding:6px 12px;border-radius:999px;font-weight:800}
.watermark{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.06);font-weight:900;letter-spacing:1.5px;transform:rotate(-18deg);pointer-events:none;user-select:none}