*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: #1a1a2e;
  background: #f5f6fa;
  padding: 20px;
  max-width: 720px;
  margin: 0 auto;
}

h1 { font-size: 20px; margin-bottom: 4px; }
header p { color: #636e72; margin-bottom: 20px; }
h2 { font-size: 16px; margin: 20px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 6px; }

section {
  background: #fff;
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.field {
  margin-bottom: 12px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #636e72;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.field input[type="text"],
.field input[type="number"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #dcdde1;
  border-radius: 4px;
  font-size: 14px;
}

.field input:focus {
  outline: none;
  border-color: #0984e3;
  box-shadow: 0 0 0 2px rgba(9,132,227,0.15);
}

/* Toggle switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  vertical-align: middle;
  margin-right: 10px;
}

.toggle input { display: none; }

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #dcdde1;
  border-radius: 24px;
  transition: 0.2s;
}

.slider::before {
  content: "";
  position: absolute;
  height: 18px; width: 18px;
  left: 3px; bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.2s;
}

.toggle input:checked + .slider { background: #00b894; }
.toggle input:checked + .slider::before { transform: translateX(20px); }

#enabled-label {
  display: inline-block;
  vertical-align: middle;
  font-weight: 600;
  font-size: 14px;
}

.btn {
  padding: 8px 18px;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary { background: #0984e3; color: #fff; }
.btn-primary:hover { background: #0773c5; }

#save-status {
  margin-left: 10px;
  font-size: 13px;
  color: #00b894;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid #f0f0f5;
}
.stat-row:last-child { border-bottom: none; }
.stat-label { color: #636e72; }
.stat-value { font-weight: 600; }
.stat-value.ok { color: #00b894; }
.stat-value.warn { color: #e17055; }
.stat-value.off { color: #b2bec3; }