body {
  min-height: 100vh;
  margin: 0;
  padding: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  /* Gradient biru ke putih super soft */
  background: linear-gradient(120deg, #41b3fa 0%, #d5e7ff 100%);
  position: relative;
  overflow: hidden;
}

/* Pola geometric SVG lembut sebagai overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.24;
  background: url('data:image/svg+xml;utf8,<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg"><g opacity="0.5"><circle cx="100" cy="100" r="80" fill="none" stroke="white" stroke-width="3"/><rect x="65%" y="60%" width="130" height="130" fill="none" stroke="white" stroke-width="2" rx="18"/><polygon points="380,80 420,160 340,160" fill="none" stroke="white" stroke-width="2"/></g></svg>');
  background-size: 500px, 320px;
  background-repeat: no-repeat;
  background-position: top left, bottom right;
}

/* Efek glass (blur) pada card login */
.login-card {
  background: rgba(255, 255, 255, 0.42);
  box-shadow: 0 8px 32px 0 rgba(60, 110, 200, 0.18);
  border-radius: 22px;
  backdrop-filter: blur(11px);
  -webkit-backdrop-filter: blur(11px);
  border: 1.5px solid rgba(90, 160, 255, 0.18);
  padding: 2.5rem 2rem 2rem 2rem;
  max-width: 360px;
  margin: 7vh auto;
  position: relative;
  z-index: 1;
}

/* Tambahan animasi masuk */
@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.login-card {
  animation: fade-in 1.2s cubic-bezier(0.45, 0.11, 0.26, 1.18);
}