:root {
  --primary-color: #3498db;
  --secondary-color: #2c3e50;
  --bg-color: #f4f7f6;
  --card-bg: #ffffff;
  --text-color: #333;
  --light-text: #777;
  --border-color: #eee;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --card-bg: #2d2d2d;
  --secondary-color: #ecf0f1;
  --text-color: #f1f1f1;
  --light-text: #bdc3c7;
  --border-color: #444;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

.header-top {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 5px;
}

header h1 {
  color: var(--secondary-color);
  font-size: 2.5rem;
}

.theme-btn {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--secondary-color);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.theme-btn:hover {
  background: var(--primary-color);
  color: white;
}

header #current-date {
  color: var(--light-text);
  font-weight: 500;
}

main {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

section h2 {
  margin-bottom: 20px;
  border-left: 5px solid var(--primary-color);
  padding-left: 15px;
  color: var(--secondary-color);
}

/* Weather Grid */
.weather-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 15px;
}

.weather-card {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.weather-card:hover {
  transform: translateY(-5px);
}

.weather-card.today {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: white;
}

.weather-card.today .date, .weather-card.today .temp-range {
  color: #e0e0e0;
}

.weather-card .date {
  font-weight: bold;
  font-size: 0.9rem;
  margin-bottom: 10px;
  display: block;
}

.weather-card i {
  font-size: 2rem;
  margin: 10px 0;
}

.weather-card .temp-max {
  font-size: 1.2rem;
  font-weight: bold;
  display: block;
}

.weather-card .temp-range {
  font-size: 0.8rem;
  color: var(--light-text);
}

/* News List */
.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.news-card {
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
}

.news-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.news-content {
  padding: 20px;
  flex-grow: 1;
}

.news-content h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--secondary-color);
}

.news-content h3 a {
  text-decoration: none;
  color: inherit;
}

.news-content h3 a:hover {
  color: var(--primary-color);
}

.news-content p {
  font-size: 0.9rem;
  color: var(--light-text);
  margin-bottom: 15px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  font-size: 0.8rem;
  color: #999;
}

/* Contact Section */
.contact-container {
  background: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--secondary-color);
}

.form-group input, .form-group textarea {
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-color);
  color: var(--text-color);
  font-family: inherit;
  font-size: 1rem;
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.submit-btn {
  background: var(--primary-color);
  color: white;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease;
}

.submit-btn:hover {
  background: #2980b9;
}

footer {
  text-align: center;
  margin-top: 60px;
  padding: 20px;
  color: var(--light-text);
  font-size: 0.9rem;
}

.loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px;
  color: var(--light-text);
  font-style: italic;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 2rem;
  }
}