body { background-color: #fafafa; font-family: Arial, sans-serif; margin: 0; padding-bottom: 50px; }
.nav-bar { display: flex; justify-content: space-between; align-items: center; background: white; padding: 15px 30px; border-bottom: 1px solid #dbdbdb; position: sticky; top: 0; z-index: 100; }
.nav-bar a { text-decoration: none; color: #0095f6; font-weight: bold; }
.feed-container { display: flex; flex-direction: column; align-items: center; margin-top: 20px; }
.ig-post { background: white; border: 1px solid #dbdbdb; border-radius: 8px; width: 400px; margin-bottom: 25px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
.ig-header { padding: 12px; font-weight: bold; border-bottom: 1px solid #efefef; }
.ig-post img { width: 100%; height: 400px; object-fit: cover; }
.ig-footer { padding: 12px; font-size: 14px; }