:root {
  --bg: #07090d;
  --bg-2: #0b0e15;
  --panel: #0f131c;
  --panel-2: #131828;
  --border: #1d2333;
  --border-2: #262e44;
  --text: #e8ecf4;
  --muted: #7c87a0;
  --green: #16c784;
  --green-dim: rgba(22, 199, 132, 0.12);
  --red: #ea3943;
  --red-dim: rgba(234, 57, 67, 0.12);
  --amber: #f5a524;
  --accent: #6c8cff;
  --accent-2: #8b6cff;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: "Inter", -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.green { color: var(--green); }
.red { color: var(--red); }
.amber { color: var(--amber); }

/* ---------- login ---------- */
.login-screen {
  height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(1200px 600px at 50% -10%, #14203a 0%, var(--bg) 55%);
}
.login-card {
  width: 360px; padding: 44px 36px; text-align: center;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border-2); border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}
.login-logo { font-size: 44px; margin-bottom: 8px; }
.login-card h1 { font-size: 26px; font-weight: 800; letter-spacing: 0.5px; }
.login-sub { color: var(--muted); margin: 4px 0 28px; font-size: 13px; }
.login-card input {
  width: 100%; margin-bottom: 12px; padding: 12px 14px;
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); font-size: 14px; outline: none; transition: border 0.15s;
}
.login-card input:focus { border-color: var(--accent); }
.login-error { color: var(--red); font-size: 13px; margin-top: 12px; min-height: 18px; }

/* ---------- layout ---------- */
.app { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: 218px; flex-shrink: 0; display: flex; flex-direction: column;
  background: var(--bg-2); border-right: 1px solid var(--border);
  padding: 20px 12px 16px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 10px 22px; }
.brand-icon { font-size: 22px; }
.brand-name { font-weight: 800; font-size: 16px; letter-spacing: 1px; }
.brand-name span { color: var(--accent); }
nav { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 11px; padding: 10px 12px;
  color: var(--muted); text-decoration: none; border-radius: 10px;
  font-weight: 500; font-size: 13.5px; transition: all 0.15s;
}
.nav-item:hover { color: var(--text); background: rgba(255,255,255,0.03); }
.nav-item.active { color: var(--text); background: linear-gradient(90deg, rgba(108,140,255,0.14), rgba(108,140,255,0.04)); }
.nav-ico { width: 18px; text-align: center; opacity: 0.9; }
.sidebar-foot { display: flex; flex-direction: column; gap: 10px; padding: 12px 10px 0; border-top: 1px solid var(--border); }
.engine-status { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.dot.ok { background: var(--green); box-shadow: 0 0 8px rgba(22,199,132,0.7); }

.main { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 26px; background: rgba(7,9,13,0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar-left { display: flex; gap: 12px; }
.stat-pill {
  display: flex; flex-direction: column; gap: 1px;
  padding: 6px 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
}
.stat-pill label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--muted); }
.stat-pill span { font-family: var(--mono); font-size: 14px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.badge {
  padding: 4px 12px; border-radius: 8px; font-size: 11px; font-weight: 700; letter-spacing: 1px;
  background: var(--red-dim); color: var(--red); border: 1px solid rgba(234,57,67,0.3);
}
.badge.paper { background: rgba(245,165,36,0.12); color: var(--amber); border-color: rgba(245,165,36,0.3); }
.master-toggle { display: flex; align-items: center; gap: 10px; }
.toggle-label { font-size: 12px; color: var(--muted); font-weight: 600; }
.switch { position: relative; width: 46px; height: 25px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; inset: 0; cursor: pointer; border-radius: 25px;
  background: var(--border-2); transition: 0.2s;
}
.slider:before {
  content: ""; position: absolute; width: 19px; height: 19px; left: 3px; top: 3px;
  border-radius: 50%; background: #fff; transition: 0.2s;
}
.switch input:checked + .slider { background: var(--green); }
.switch input:checked + .slider:before { transform: translateX(21px); }

.halt-banner {
  margin: 14px 26px 0; padding: 12px 18px; border-radius: 12px;
  background: var(--red-dim); border: 1px solid rgba(234,57,67,0.35);
  color: var(--red); font-weight: 600; font-size: 13px;
}

/* ---------- pages / cards ---------- */
.page { padding: 22px 26px 40px; display: flex; flex-direction: column; gap: 18px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat-card {
  padding: 18px 20px; background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border); border-radius: 16px;
}
.stat-card label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.stat-value { font-family: var(--mono); font-size: 24px; font-weight: 700; margin-top: 6px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.card-head h2 { font-size: 14px; font-weight: 700; letter-spacing: 0.2px; }
.live-tag { font-size: 10px; color: var(--green); font-weight: 700; letter-spacing: 1px; animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: 0.45; } }
.card-actions { padding: 16px 20px; display: flex; align-items: center; gap: 14px; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left; padding: 10px 16px; font-size: 10.5px; text-transform: uppercase;
  letter-spacing: 0.8px; color: var(--muted); border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td { padding: 11px 16px; border-bottom: 1px solid rgba(29,35,51,0.6); font-size: 13px; white-space: nowrap; }
tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: rgba(255,255,255,0.02); }
tr.clickable { cursor: pointer; }
.tk { display: flex; flex-direction: column; }
.tk b { font-size: 13px; }
.tk small { color: var(--muted); font-family: var(--mono); font-size: 10.5px; }
.num { font-family: var(--mono); }
.empty { padding: 34px; text-align: center; color: var(--muted); font-size: 13px; }

.progress-bar { width: 90px; height: 6px; border-radius: 4px; background: var(--border); overflow: hidden; }
.progress-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--accent), var(--green)); }

.chip {
  display: inline-block; padding: 3px 9px; border-radius: 7px; font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.4px;
}
.chip.green { background: var(--green-dim); color: var(--green); }
.chip.red { background: var(--red-dim); color: var(--red); }
.chip.amber { background: rgba(245,165,36,0.12); color: var(--amber); }
.chip.blue { background: rgba(108,140,255,0.12); color: var(--accent); }
.chip.gray { background: rgba(124,135,160,0.12); color: var(--muted); }

/* ---------- buttons / forms ---------- */
.btn {
  padding: 9px 16px; border: 1px solid var(--border-2); border-radius: 10px;
  background: var(--panel-2); color: var(--text); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.15s; font-family: inherit;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; }
.btn-primary:hover { filter: brightness(1.12); }
.btn-danger { background: linear-gradient(135deg, #d9303a, #a12631); border: none; }
.btn-danger:hover { filter: brightness(1.12); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 5px 11px; font-size: 12px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn-xs { padding: 3px 9px; font-size: 11px; border-radius: 7px; }

.form-col { padding: 18px 20px; display: flex; flex-direction: column; gap: 12px; }
.form-row { display: flex; gap: 10px; }
.form-row input { flex: 1; }
.form-col input, .settings-grid input, .settings-grid select {
  padding: 10px 13px; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); font-size: 13px; outline: none; font-family: var(--mono);
}
.form-col input:focus, .settings-grid input:focus { border-color: var(--accent); }
.form-status { font-size: 12.5px; color: var(--muted); min-height: 16px; }

.settings-grid {
  padding: 18px 20px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px 18px;
}
.settings-grid .field { display: flex; flex-direction: column; gap: 5px; }
.settings-grid .field.wide { grid-column: span 3; }
.settings-grid label { font-size: 11px; color: var(--muted); font-weight: 600; letter-spacing: 0.3px; }
.settings-grid .hint { font-size: 10.5px; color: var(--muted); opacity: 0.75; }

/* wallet */
#wallet-info { padding: 18px 20px; display: flex; flex-direction: column; gap: 14px; }
.wallet-balance { font-family: var(--mono); font-size: 30px; font-weight: 700; }
.wallet-usd { color: var(--muted); font-size: 14px; margin-left: 8px; }
.addr-box {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px;
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
  font-family: var(--mono); font-size: 12px; word-break: break-all; white-space: normal;
}
.key-reveal { background: var(--red-dim); border: 1px solid rgba(234,57,67,0.3); border-radius: 10px; padding: 12px 14px; font-family: var(--mono); font-size: 11.5px; word-break: break-all; }

/* segmented */
.seg { display: flex; background: var(--bg-2); border: 1px solid var(--border); border-radius: 9px; padding: 3px; gap: 2px; }
.seg-btn {
  padding: 5px 12px; border: none; background: transparent; color: var(--muted);
  font-size: 11.5px; font-weight: 600; border-radius: 7px; cursor: pointer; font-family: inherit;
}
.seg-btn.active { background: var(--panel-2); color: var(--text); }

/* logs */
.logs { max-height: 640px; overflow-y: auto; font-family: var(--mono); font-size: 12px; }
.log-line { display: flex; gap: 12px; padding: 7px 18px; border-bottom: 1px solid rgba(29,35,51,0.5); }
.log-time { color: var(--muted); flex-shrink: 0; }
.log-area { color: var(--accent); flex-shrink: 0; width: 74px; }

/* modal */
.modal {
  position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center;
  background: rgba(4,6,10,0.8); backdrop-filter: blur(6px);
}
.modal-box {
  width: 480px; max-width: 94vw; max-height: 90vh; overflow-y: auto;
  background: var(--panel); border: 1px solid var(--border-2); border-radius: 18px;
  box-shadow: 0 40px 100px rgba(0,0,0,0.7);
}
.modal-wide { width: 860px; }
.modal-head {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 18px 22px; border-bottom: 1px solid var(--border);
}
.modal-head h3 { font-size: 16px; }
.modal-close {
  border: none; background: transparent; color: var(--muted); font-size: 16px; cursor: pointer;
  padding: 4px 8px; border-radius: 8px;
}
.modal-close:hover { color: var(--text); background: rgba(255,255,255,0.05); }
#chart-container { height: 380px; }
.chart-position-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 14px 22px; border-top: 1px solid var(--border);
}
.chart-checks { padding: 12px 22px 20px; display: flex; flex-wrap: wrap; gap: 8px; }

@media (max-width: 1100px) {
  .grid-2 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-grid { grid-template-columns: 1fr 1fr; }
  .settings-grid .field.wide { grid-column: span 2; }
}
@media (max-width: 760px) {
  .sidebar { width: 64px; }
  .brand-name, .nav-item span:not(.nav-ico), #engine-label { display: none; }
  .topbar { flex-wrap: wrap; gap: 10px; }
}