* {
  box-sizing: border-box;
  font-family: system-ui, sans-serif;
}

body {
  margin: 0;
  background: #0f172a;
  color: #e5e7eb;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.app {
  width: 100%;
  max-width: 420px;
  padding: 1.5rem;
  background: #020617;
  border-radius: 12px;
}

form {
  display: flex;
  gap: 0.5rem;
}

input {
  flex: 1;
  padding: 0.5rem;
  border-radius: 6px;
  border: none;
}

button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

#message {
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

#message.error {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.15);
  padding: 0.5rem;
  border-radius: 6px;
}

.loader {
  margin-top: 1rem;
  opacity: 0.8;
}

.weather-card {
  margin-top: 1rem;
  padding: 1rem;
  background: #020617;
  border: 1px solid #334155;
  border-radius: 8px;
}

.hidden {
  display: none;
}