body { font-family: sans-serif; background: #f4f4f4; margin: 0; padding: 20px; }
.container { max-width: 900px; margin: auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
table, th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
th { background-color: #4CAF50; color: white; }
.zebra-gri {
    background-color: #f2f2f2;
}
.btn { display: inline-block; padding: 10px 15px; background: #4CAF50; color: white; text-decoration: none; border-radius: 4px; border: none; cursor: pointer; }
.btn-ekle { margin-bottom: 20px; }
input, select { width: 100%; padding: 10px; margin: 10px 0; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; }