/* Light Theme (default) */
:root {
  --bg-color: #f5f5f5;
  --text-color: #222;
  --card-bg: #fff;
  --accent-color: #007bff;
}

/* Dark Theme */
.dark-theme {
  --bg-color: #121212;
  --text-color: #f5f5f5;
  --card-bg: #1e1e1e;
  --accent-color: #00d8ff;
}

body {
  font-family: "Segoe UI", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  transition: 0.3s;
}

.app {
  max-width: 500px;
  margin: 40px auto;
  padding: 20px;
  text-align: center;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0;
}

#theme-toggle {
  font-size: 1.2rem;
  padding: 6px 10px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: var(--accent-color);
  color: #fff;
}

.search-box {
  margin: 20px 0;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.search-box input {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #ccc;
  width: 60%;
}

.search-box button {
  padding: 10px 15px;
  border-radius: 8px;
  border: none;
  background: var(--accent-color);
  color: #fff;
  cursor: pointer;
}

.weather-card {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.2);
  margin-top: 20px;
  transition: 0.3s;
}

.weather-card img {
  width: 80px;
  height: 80px;
}

.error {
  color: red;
  margin-top: 15px;
}

.hidden {
  display: none;
}