body { font-family: 'Segoe UI', sans-serif; background: #f0f2f5; display: flex; justify-content: center; padding: 20px; }
.card { background: white; padding: 2rem; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); width: 100%; max-width: 480px; }
h2 { color: #1e3799; text-align: center; border-bottom: 2px solid #eee; padding-bottom: 10px; }
label { display: block; margin-top: 15px; font-weight: 600; color: #4a69bd; font-size: 0.85rem; text-transform: uppercase; }
input, select { width: 100%; padding: 12px; margin-top: 5px; border: 1px solid #ddd; border-radius: 6px; box-sizing: border-box; }
button { width: 100%; margin-top: 20px; padding: 14px; background: #1e3799; color: white; border: none; border-radius: 6px; cursor: pointer; font-weight: bold; }
button:hover { background: #0c2461; }
.success { background: #e3fcef; color: #00875a; padding: 15px; border-radius: 6px; border-left: 5px solid #00a3bf; margin-bottom: 20px; }
.error { background: #ffebe6; color: #bf2600; padding: 15px; border-radius: 6px; border-left: 5px solid #de350b; margin-bottom: 20px; }
.btn-nav { background: #4a69bd; margin-bottom: 10px; }