:root {
  --primary: #4f46e5;
  --bg: #f9fafb;
  --text: #111827;
  --card: #ffffff;
}

body.dark {
  --bg: #0f172a;
  --text: #e5e7eb;
  --card: #1e293b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.hero {
  padding: 60px 20px;
  text-align: center;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: white;
}

.hero.small {
  padding: 40px 20px;
}

.dark-toggle {
  margin-top: 20px;
  padding: 10px 20px;
  border: none;
  border-radius: 25px;
  cursor: pointer;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 40px 20px;
}

.blogs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.card {
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-6px);
}

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

.content {
  padding: 20px;
}

.tag {
  background: #eef2ff;
  color: var(--primary);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
}

.cta {
  text-align: center;
  padding: 60px 20px;
  background: var(--primary);
  color: white;
}

.cta button {
  margin-top: 15px;
  padding: 12px 25px;
  border: none;
  border-radius: 25px;
  cursor: pointer;
}

.newsletter {
  text-align: center;
  padding: 50px 20px;
}

.newsletter input {
  padding: 12px;
  width: 250px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

.newsletter button {
  padding: 12px 20px;
  margin-left: 8px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: white;
  cursor: pointer;
}

.blog-detail h2 {
  margin-top: 25px;
}

footer {
  text-align: center;
  padding: 25px;
  opacity: 0.7;
}