/* CSS reset ve temel ayarlar */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; background-color: #f8f9fa; color: #333; }
a { text-decoration: none; color: #007bff; }

/* Header ve Navigasyon */
header { background: #212529; color: #fff; padding: 2rem 0; text-align: center; }
header h1 { margin-bottom: 0.5rem; font-size: 2.5rem; }
header p { color: #aaa; }
nav { background: #343a40; color: #fff; padding: 1rem; text-align: center; }
nav a { color: #fff; margin: 0 15px; font-weight: 500; letter-spacing: 1px; }
nav a:hover { color: #17a2b8; transition: 0.3s; }

/* Ana İçerik ve Grid Yapısı */
.container { display: flex; max-width: 1200px; margin: 30px auto; padding: 0 20px; gap: 30px; }
main { flex: 3; }
aside { flex: 1; background: #fff; padding: 25px; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); height: fit-content; }

/* Blog Post Kartları */
.card { background: #fff; padding: 30px; margin-bottom: 30px; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: transform 0.2s; }
.card:hover { transform: translateY(-5px); }
.card h2 { margin-bottom: 10px; color: #212529; }
.card .date { font-size: 0.9em; color: #6c757d; margin-bottom: 20px; display: block; border-bottom: 1px solid #eee; padding-bottom: 10px; }
.card p { margin-bottom: 20px; color: #555; }
.btn { display: inline-block; background: #212529; color: #fff; padding: 10px 20px; border-radius: 5px; font-weight: 500; }
.btn:hover { background: #007bff; color: white; transition: 0.3s; }

/* Footer */
footer { background: #212529; color: #fff; text-align: center; padding: 20px; margin-top: 40px; }

/* Mobil Uyumluluk */
@media(max-width: 768px) {
    .container { flex-direction: column; }
    main, aside { flex: 1; width: 100%; }
}