:root {
  --bg: #0b1020;
  --panel: #131a2e;
  --border: #232c47;
  --text: #e6e9f2;
  --muted: #8a92b2;
  --accent: #5b8cff;
  --accent-2: #7c5bff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(160deg, var(--bg), #050810);
  color: var(--text);
  min-height: 100vh;
}

#app { min-height: 100vh; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

nav.tabs {
  display: flex;
  gap: 0.5rem;
}

nav.tabs button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
}

nav.tabs button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.panel h2 {
  margin-top: 0;
}

.field-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

input[type="text"],
input[type="password"] {
  flex: 1;
  background: #0d1326;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  font-size: 0.95rem;
}

button.primary {
  background: var(--accent);
  border: none;
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
}

button.primary:hover { opacity: 0.9; }

.echo {
  color: var(--muted);
  margin-bottom: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

th { color: var(--muted); font-weight: 600; }

pre.result {
  background: #0d1326;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.85rem;
}

.status {
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

.status.error { color: #ff6b6b; }
.status.ok { color: #63e6be; }

.hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 1.5rem;
}