:root { color-scheme: light; }
* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0;
  background: #f6f6f7;
  color: #111;
}

.container {
  max-width: 980px;
  margin: 40px auto;
  padding: 0 20px;
}

.card {
  background: #fff;
  border: 1px solid #e6e6e8;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.04);
}

h1, h2 {
  margin-top: 0;
}

input, select, button {
  font: inherit;
}

input, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d6d6da;
  border-radius: 10px;
  background: #fff;
  margin-bottom: 12px;
}

button, .btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid #111;
  background: #111;
  color: #fff;
  text-decoration: none;
  cursor: pointer;
}

.btn-light {
  background: #fff;
  color: #111;
  border-color: #d6d6da;
}

.alert {
  padding: 10px 12px;
  border-radius: 10px;
  margin: 12px 0;
}

.alert-error {
  background: #fdecea;
  border: 1px solid #f5c2c7;
  color: #b00020;
}

.alert-ok {
  background: #e9f7ef;
  border: 1px solid #bfe8cf;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.muted {
  color: #666;
  font-size: 14px;
}

.row {
  display: grid;
  grid-template-columns: 1fr 160px 160px;
  gap: 12px;
}