:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #2a2e37;
  --text: #e6e8eb;
  --muted: #8b92a0;
  --accent: #4f8cff;
  --green: #34c759;
  --yellow: #e6b800;
  --red: #ff5459;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 24px;
}

code {
  background: #1f232c;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

.hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 4px 0 12px;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}

label.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

input[type="text"] {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #0f1115;
  color: var(--text);
  font-size: 0.9rem;
}

.row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.row input[type="text"] {
  margin-top: 0;
  flex: 1;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 9px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
}

button:disabled {
  background: #2a2e37;
  color: var(--muted);
  cursor: not-allowed;
}

button:not(:disabled):hover {
  filter: brightness(1.1);
}

.result {
  margin-left: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: #2a2e37;
  color: var(--muted);
}

.status-badge[data-state="connecting"] {
  background: rgba(230, 184, 0, 0.15);
  color: var(--yellow);
}

.status-badge[data-state="open"] {
  background: rgba(52, 199, 89, 0.15);
  color: var(--green);
}

.status-badge[data-state="error"],
.status-badge[data-state="closed"] {
  background: rgba(255, 84, 89, 0.15);
  color: var(--red);
}

.log {
  background: #0a0c10;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  height: 260px;
  overflow-y: auto;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
}

.log .line {
  margin-bottom: 4px;
}

.log .info { color: var(--muted); }
.log .success { color: var(--green); }
.log .error { color: var(--red); }
.log .sent { color: var(--accent); }

footer {
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}