.kd-container { display: flex; justify-content: center; padding: 40px 20px; }
.kd-card { background: #fff; padding: 40px; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); text-align: center; max-width: 400px; width: 100%; border-top: 5px solid #1f5f46; }
.kd-form input { padding: 12px; width: 100%; border: 1px solid #ddd; border-radius: 5px; margin-bottom: 10px; box-sizing: border-box; }
.kd-form button { padding: 12px; background: #1f5f46; color: #fff; border: none; border-radius: 5px; width: 100%; cursor: pointer; font-weight: bold; }
.kd-result { margin-top: 25px; padding: 20px; border-radius: 10px; }
.status-lulus { background: #e6fffa; color: #2d3748; border: 1px solid #38b2ac; }
.status-gagal { background: #fff5f5; color: #c53030; border: 1px solid #feb2b2; }
.kd-error { margin-top: 20px; color: #c53030; font-style: italic; }