:root {
  --bg: #f3f6f9;
  --card: #ffffff;
  --text: #1b2a33;
  --muted: #5d737e;
  --accent: #0b7285;
  --ok: #2b8a3e;
  --bad: #c92a2a;
  --unknown: #6c757d;
  --border: #d8e2e8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: linear-gradient(135deg, #eef5f9 0%, #f6f9fc 60%, #e9f1f6 100%);
  color: var(--text);
}

.container {
  width: min(1200px, 96%);
  margin: 24px auto 40px;
}

.panel-header {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-header h1 {
  margin: 0;
  font-size: 1.8rem;
}

.panel-header p {
  margin: 0;
  color: var(--muted);
  width: 100%;
}

.grid {
  display: grid;
  gap: 14px;
  margin-bottom: 14px;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid.three {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 4px 14px rgba(21, 41, 53, 0.05);
}

.card h2 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.stats-list {
  margin: 0;
}

.stats-list div {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px dashed var(--border);
}

.stats-list div:last-child {
  border-bottom: 0;
}

.stats-list dt {
  color: var(--muted);
}

.tips {
  margin: 0;
  padding-left: 18px;
}

.tips li {
  margin: 8px 0;
}

.muted {
  color: var(--muted);
  margin-top: 0;
}

.feature-grid {
  display: grid;
  gap: 12px;
}

.feature-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

.feature-meta h3 {
  margin: 0 0 6px 0;
  font-size: 1rem;
}

.feature-meta p {
  margin: 0;
  color: var(--muted);
}

.feature-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.badge {
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  color: #fff;
}

.badge.enabled {
  background: var(--ok);
}

.badge.disabled {
  background: var(--bad);
}

.badge.unknown {
  background: var(--unknown);
}

.btn {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 7px;
  padding: 8px 11px;
  font-size: 0.86rem;
  cursor: pointer;
}

.btn:hover {
  filter: brightness(0.95);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

label {
  display: block;
  font-size: 0.86rem;
  color: var(--muted);
  margin: 8px 0 5px;
}

input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 8px;
  font-size: 0.9rem;
}

select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 8px;
  font-size: 0.9rem;
  background: #fff;
}

pre {
  margin-top: 10px;
  background: #10222d;
  color: #d7f4ff;
  border-radius: 8px;
  padding: 10px;
  min-height: 92px;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 0.8rem;
}

@media (max-width: 740px) {
  .feature-actions {
    width: 100%;
    justify-content: flex-start;
  }
}