:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c2330;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #2f81f7;
  --accent2: #1f6feb;
  --green: #3fb950;
  --red: #f85149;
  --gold: #d29922;
  --purple: #a371f7;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

header {
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  width: 52px; height: 52px;
  border-radius: 50%;
  box-shadow: 0 4px 14px rgba(0,0,0,.35);
  display: block;
}
.mini-logo {
  width: 22px; height: 22px;
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 7px;
  box-shadow: 0 2px 6px rgba(0,0,0,.3);
}
header h1 { margin: 0; font-size: 22px; }
.tagline { margin: 0; color: var(--muted); font-size: 13px; }

.net-strip {
  display: flex;
  gap: 14px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.net-strip .pill {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  display: flex;
  gap: 14px;
  align-items: center;
  min-width: 180px;
}
.net-strip .pill .nm { font-weight: 700; font-size: 13px; }
.net-strip .pill .meta { color: var(--muted); font-size: 12px; font-family: var(--mono); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); display: inline-block; }
.status-dot.off { background: var(--red); }

nav {
  display: flex;
  gap: 4px;
  padding: 0 28px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  overflow-x: auto;
}
.tab {
  background: none; border: none; color: var(--muted);
  padding: 12px 16px; font-size: 15px; cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

main { max-width: 1080px; margin: 0 auto; padding: 24px 20px 60px; }
.tabpanel { display: none; }
.tabpanel.active { display: block; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 18px;
}
.card.warn { border-color: var(--gold); }
.card h2, .card h3 { margin-top: 0; }
h2 { font-size: 20px; }

input, textarea, select {
  width: 100%;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  margin: 6px 0 14px;
  font-size: 14px;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
textarea { font-family: var(--mono); }
.mono { font-family: var(--mono); word-break: break-all; }
select { cursor: pointer; }

label { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }

button {
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
button:hover { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--accent2); border-color: var(--accent2); color: #fff; font-weight: 600; }
button.primary:hover:not(:disabled) { background: var(--accent); border-color: var(--accent); }
button.secondary { border-color: var(--accent); color: var(--accent); }
button.danger { border-color: var(--red); color: var(--red); }
button.ghost { background: none; }
button.small { padding: 6px 12px; font-size: 13px; }

.balances { display: flex; gap: 16px; margin: 14px 0; flex-wrap: wrap; }
.balance {
  flex: 1;
  min-width: 160px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}
.balance .value { font-size: 20px; font-weight: 700; font-family: var(--mono); word-break: break-all; }

.hint { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.hint.ok { color: var(--green); }
.hint.err { color: var(--red); }
.hidden { display: none; }

.toolbar { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; align-items: end; }
.toolbar input { flex: 1; margin: 0; min-width: 200px; }
.toolbar .net-sel { width: 220px; margin: 0; }
.toolbar .toolbar-label { color: var(--muted); font-size: 12px; margin-bottom: 4px; }

.block-item, .tx-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.block-item:hover, .tx-item:hover { border-color: var(--accent); }
.block-num { font-family: var(--mono); font-weight: 700; color: var(--accent); }
.block-meta, .tx-meta { color: var(--muted); font-size: 13px; }
.tx-hash { font-family: var(--mono); word-break: break-all; }
.tx-coin { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; color: var(--muted); font-size: 12px; font-family: var(--mono); white-space: nowrap; }
.tx-coin .mini-logo { width: 18px; height: 18px; margin-right: 0; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
td.mono, th.mono { font-family: var(--mono); }
td.num { text-align: right; font-family: var(--mono); }
th.num { text-align: right; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 20px;
  border-top: 1px solid var(--border);
}

/* dashboard */
.net-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; margin-bottom: 20px; }
.net-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.net-card h3 { margin: 0 0 4px; display: flex; align-items: center; gap: 10px; }
.net-card .cid { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.net-card .net-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; margin-top: 12px; }
.net-card .stat .k { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.net-card .stat .v { font-family: var(--mono); font-size: 15px; font-weight: 600; }
.net-card .tok-line { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); color: var(--muted); font-size: 12px; font-family: var(--mono); }

.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 700; letter-spacing: .5px; }
.badge.mainnet { background: rgba(47,129,247,.15); color: var(--accent); border: 1px solid rgba(47,129,247,.4); }
.badge.testnet { background: rgba(163,113,247,.15); color: var(--purple); border: 1px solid rgba(163,113,247,.4); }
.badge.green { background: rgba(63,185,80,.12); color: var(--green); border: 1px solid rgba(63,185,80,.35); }
.badge.red { background: rgba(248,81,73,.12); color: var(--red); border: 1px solid rgba(248,81,73,.35); }
.badge.gold { background: rgba(210,153,34,.12); color: var(--gold); border: 1px solid rgba(210,153,34,.35); }

.crypto-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-bottom: 20px; }
.crypto-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.crypto-card .k { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.crypto-card .v { font-size: 18px; font-weight: 700; font-family: var(--mono); }

/* admin */
.key-box { display: flex; gap: 10px; align-items: end; }
.key-box input { flex: 1; margin: 0; }
.control-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; }
.control-panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.control-panel h3 { display: flex; justify-content: space-between; align-items: center; margin: 0 0 10px; }
.control-panel .cid { color: var(--muted); font-family: var(--mono); font-size: 12px; font-weight: 400; }
.control-panel .sub { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.control-panel .row input, .control-panel .row select { flex: 1; margin: 6px 0; }

.switch { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.switch input[type="checkbox"] { width: auto; margin: 0; transform: scale(1.2); }

.divider { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

.preview { background: var(--panel2); border: 1px dashed var(--border); border-radius: 8px; padding: 10px 12px; font-family: var(--mono); font-size: 13px; margin: 8px 0; }
.preview .line { display: flex; justify-content: space-between; gap: 10px; }
.preview .line .k { color: var(--muted); }