/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding: 1rem;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 1rem;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: all 0.3s ease;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

.modal-header h2 {
  color: #ffffff;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  transition: all 0.3s ease;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: #ffffff;
  background: rgba(59, 130, 246, 0.1);
}

.modal-body {
  padding: 1.5rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  color: #ffffff;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 0.5rem;
  background: rgba(30, 41, 59, 0.5);
  color: #ffffff;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  background: rgba(30, 41, 59, 0.7);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #94a3b8;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  margin-top: 2rem;
}

.form-submit .btn {
  width: 100%;
}

/* E-book Preview */
.ebook-preview {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.ebook-cover {
  width: 120px;
  height: auto;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  flex-shrink: 0;
}

.ebook-info h3 {
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.ebook-info p {
  color: #94a3b8;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.ebook-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ebook-info li {
  color: #94a3b8;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ebook-info li::before {
  content: "✓";
  color: #10b981;
  font-weight: bold;
}

/* Loading State */
.btn-loading {
  pointer-events: none;
  opacity: 0.7;
  position: relative;
}

.btn-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Success/Error Messages */
.form-message {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .modal {
    padding: 0.5rem;
  }

  .modal-content {
    max-width: 100%;
    max-height: 95vh;
    border-radius: 0.75rem;
  }

  .modal-header {
    padding: 1rem;
  }

  .modal-header h2 {
    font-size: 1.25rem;
  }

  .modal-body {
    padding: 1rem;
  }

  .ebook-preview {
    flex-direction: column;
    text-align: center;
  }

  .ebook-cover {
    width: 100px;
    margin: 0 auto;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 0.875rem;
    font-size: 16px; /* Prevents zoom on iOS */
  }
}

@media (max-width: 480px) {
  .modal {
    padding: 0.25rem;
  }

  .modal-header {
    padding: 0.75rem;
  }

  .modal-body {
    padding: 0.75rem;
  }

  .ebook-preview {
    gap: 1rem;
  }

  .ebook-cover {
    width: 80px;
  }

  .ebook-info h3 {
    font-size: 1.1rem;
  }

  .ebook-info p {
    font-size: 0.9rem;
  }
}