:root {
  --bg: #0b1020; --panel: #141a2e; --panel-2: #1b2340; --border: #273156;
  --text: #e7ecf6; --muted: #94a0bd; --brand: #5b8cff; --brand-2: #7c5cff;
  --good: #34d399; --bad: #f87171; --warn: #fbbf24;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(124,92,255,.18), transparent 60%),
    radial-gradient(1000px 500px at -10% 10%, rgba(91,140,255,.15), transparent 55%),
    var(--bg);
}
a { color: inherit; }
.wrap { max-width: 900px; margin: 0 auto; padding: 24px 16px; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.between { justify-content: space-between; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 640px) { .grid3, .grid2 { grid-template-columns: 1fr; } }

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border); border-radius: 16px; padding: 20px;
  box-shadow: 0 10px 30px -12px rgba(0,0,0,.6);
}
.logo {
  width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
  font-weight: 900; font-size: 22px; background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
h1 { font-size: 26px; margin: 0; font-weight: 900; }
h2 { font-size: 18px; margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.label { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; display: block; }
.input {
  width: 100%; background: rgba(6,10,22,.7); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 10px 12px; outline: none; font-size: 14px;
}
.input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(91,140,255,.2); }
select.input option { background: #0d1330; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; padding: 10px 16px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; font-size: 14px; text-decoration: none; transition: filter .15s, background .15s;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; }
.btn-primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn-ghost { background: rgba(255,255,255,.04); border-color: var(--border); color: var(--text); }
.btn-ghost:hover:not(:disabled) { background: rgba(255,255,255,.09); }
.btn-danger { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.4); color: #fecaca; }

.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--border); }
.badge-good { color: var(--good); border-color: rgba(52,211,153,.4); background: rgba(52,211,153,.1); }
.badge-warn { color: var(--warn); border-color: rgba(251,191,36,.4); background: rgba(251,191,36,.1); }
.badge-bad  { color: var(--bad);  border-color: rgba(248,113,113,.4); background: rgba(248,113,113,.1); }
.badge-info { color: var(--brand); border-color: rgba(91,140,255,.4); background: rgba(91,140,255,.1); }

.tile { padding: 12px; border-radius: 10px; background: rgba(0,0,0,.25); border: 1px solid var(--border); }
.stack > * + * { margin-top: 10px; }
.mt { margin-top: 16px; }
.mb { margin-bottom: 16px; }

.spin { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- top nav ---- */
.topnav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(11,16,32,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner {
  max-width: 900px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-name { font-weight: 900; font-size: 16px; }
.logo.sm { width: 32px; height: 32px; border-radius: 10px; font-size: 16px; }
.navlinks { display: flex; gap: 4px; margin-left: 6px; flex: 1; overflow-x: auto; }
.navlink {
  padding: 7px 12px; border-radius: 9px; font-weight: 600; font-size: 14px;
  color: var(--muted); text-decoration: none; white-space: nowrap;
}
.navlink:hover { color: var(--text); background: rgba(255,255,255,.05); }
.navlink.active { color: var(--text); background: rgba(255,255,255,.08); border: 1px solid var(--border); }
.navright { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.btn-sm { padding: 7px 12px; font-size: 13px; border-radius: 9px; }
.page-title { font-size: 22px; font-weight: 900; margin: 0 0 16px; }

.balance {
  border-radius: 14px; padding: 20px; text-align: center;
  background: linear-gradient(135deg, rgba(91,140,255,.15), rgba(124,92,255,.15));
}
.balance-num { font-size: 40px; font-weight: 900; line-height: 1; }

.logbox {
  background: rgba(0,0,0,.4); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px; font-size: 12px; max-height: 180px; overflow: auto; white-space: pre-wrap; margin: 0;
}
.scroller { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; }
.ok-text { color: var(--good); }
.bad-text { color: var(--bad); }

/* ---- mobile ---- */
@media (max-width: 640px) {
  .wrap { padding: 16px 14px; }
  .brand-name { display: none; }
  .topnav-inner { padding: 8px 12px; gap: 6px; }
  .navlinks { margin-left: 2px; gap: 2px; }
  .navlink { padding: 7px 10px; font-size: 13px; }
  #navcoins { display: none !important; }   /* coins shown on the page itself */
  .card { padding: 16px; border-radius: 14px; }
  h1, .page-title { font-size: 20px; }
  .btn { padding: 11px 15px; }  /* larger touch targets */
  .btn-sm { padding: 8px 11px; font-size: 12px; }
  .row { gap: 8px; }
}