body { margin: 0; min-height: 100vh; display: flex; align-items: center; justify-content: center;
       font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: #f4f6f8; color: #1f2933; }
.kutu { text-align: center; padding: 2rem; max-width: 32rem; }
.kutu h1 { margin: 0 0 .5rem; font-size: 2rem; color: #0b5394; }
.durum { font-weight: 600; color: #e67e22; }