.course-register-overlay {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.course-register-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.course-register-modal {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 12px;
  padding: 1.25rem 1.35rem 1.5rem;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
  max-height: 90vh;
  overflow-y: auto;
}

.course-register-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}

.course-register-modal__head h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e293b;
}

.course-register-modal__close {
  border: 0;
  background: transparent;
  font-size: 1.75rem;
  line-height: 1;
  color: #64748b;
  cursor: pointer;
  padding: 0 0.25rem;
}

.course-register-modal__close:hover {
  color: #0f172a;
}

.course-register-modal__course {
  margin: 0 0 1rem;
  color: #64748b;
  font-size: 0.9rem;
}

.course-register-modal label {
  display: block;
  margin: 0.75rem 0 0.35rem;
  font-size: 0.9rem;
  color: #334155;
  font-weight: 500;
}

.course-register-modal label .req {
  color: #dc2626;
}

.course-register-modal input[type='text'],
.course-register-modal input[type='tel'] {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  box-sizing: border-box;
}

.course-register-modal input:focus {
  outline: 2px solid #16a34a;
  outline-offset: 1px;
  border-color: #16a34a;
}

.course-register-modal__submit {
  display: block;
  width: 100%;
  margin-top: 1.15rem;
  border: 0;
  border-radius: 8px;
  background: #16a34a;
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.7rem 1rem;
  cursor: pointer;
}

.course-register-modal__submit:hover {
  background: #15803d;
}

.course-register-modal__submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.course-register-modal__feedback {
  min-height: 1.25rem;
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
}

.course-register-modal__feedback.is-error {
  color: #b91c1c;
}

.course-register-modal__feedback.is-success {
  color: #15803d;
}

.course-register-modal__success {
  text-align: center;
  padding: 0.5rem 0 0;
}

.course-register-modal__success p {
  margin: 0 0 1rem;
  color: #166534;
  font-size: 1rem;
  line-height: 1.7;
}

.course-register-hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
}