:root {
  --bg: #0f1115;
  --panel: #161a21;
  --panel-2: #1d222b;
  --border: #2a2f3a;
  --text: #e6e8eb;
  --muted: #8b93a1;
  --accent: #4f8cff;
  --accent-2: #2fbf71;
  --danger: #e5484d;
  --warn: #e5a94d;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 16px 0;
}

.sidebar h1 {
  font-size: 14px;
  padding: 0 16px 12px;
  margin: 0 0 8px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-item {
  padding: 10px 16px;
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
  border-left: 3px solid transparent;
}
.nav-item:hover { color: var(--text); background: var(--panel-2); }
.nav-item.active {
  color: var(--text);
  border-left-color: var(--accent);
  background: var(--panel-2);
  font-weight: 600;
}

.main {
  flex: 1;
  padding: 24px 32px;
  max-width: 1100px;
}

.tab { display: none; }
.tab.active { display: block; }

h2 { margin-top: 0; font-size: 20px; }
h3 { font-size: 15px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; margin: 24px 0 8px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }

label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 9px;
  border-radius: 5px;
  font-size: 13px;
  margin-bottom: 10px;
  font-family: inherit;
}
textarea { font-family: var(--mono); font-size: 11px; min-height: 80px; }

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 5px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
}
button:hover { opacity: 0.9; }
button.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--danger); }
button.small { padding: 4px 9px; font-size: 12px; font-weight: 500; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; }
tr:hover td { background: rgba(255,255,255,0.02); }

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.pill.ok { background: rgba(47,191,113,0.15); color: var(--accent-2); }
.pill.bad { background: rgba(229,72,77,0.15); color: var(--danger); }
.pill.pending { background: rgba(229,169,77,0.15); color: var(--warn); }
.pill.muted { background: rgba(139,147,161,0.15); color: var(--muted); }

pre {
  background: #090b0e;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  overflow-x: auto;
  font-size: 11.5px;
  color: #c9d1d9;
  font-family: var(--mono);
  white-space: pre-wrap;
  word-break: break-word;
}

.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.hint { font-size: 12px; color: var(--muted); margin: -4px 0 12px; }

.method-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
  background: var(--panel-2);
}
.method-card.selected { border-color: var(--accent); background: rgba(79,140,255,0.08); }
.method-card.unavailable { opacity: 0.5; cursor: not-allowed; }
.method-card .name { font-weight: 600; }
.method-card .meta { font-size: 12px; color: var(--muted); margin-top: 4px; }

.flex-between { display: flex; justify-content: space-between; align-items: center; }
.toast {
  position: fixed; bottom: 20px; right: 20px;
  background: var(--panel-2); border: 1px solid var(--border);
  padding: 10px 16px; border-radius: 6px; font-size: 13px;
  z-index: 50;
}