body {
  font-family: 'Sarabun', 'Plus Jakarta Sans', sans-serif;
  background: linear-gradient(180deg, #EAF2FF 0%, #ffffff 50%);
  min-height: 100vh;
}

.input {
  width: 100%;
  height: 46px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid #E6EAF1;
  font-size: 16px;
  outline: none;
  transition: border .15s;
}
.input:focus {
  border-color: #0A6CFF;
  box-shadow: 0 0 0 3px rgba(10, 108, 255, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  height: 48px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
}
.btn-primary { background: #0A6CFF; color: white; }
.btn-primary:hover { background: #0857d6; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #DBEAFE;
  border-top-color: #0A6CFF;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}