/* ===== Theme utilities ===== */
.fade-up { opacity: 0; transform: translateY(16px); animation: fadeUp .6s ease forwards; }
.fade-up.delay-1 { animation-delay: .05s }
.fade-up.delay-2 { animation-delay: .1s }
.fade-up.delay-3 { animation-delay: .15s }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0) } }

.bg-cover-center { background-size: cover; background-position: center; }
.backdrop-blur { backdrop-filter: blur(8px); }
.no-scroll { overflow: hidden; }
.step-hidden { display: none; }
.otp-input { letter-spacing: 0.5em; text-align: center; }