/* =====================
   Pre-Chat Form Modal
   ===================== */

/* Overlay */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  opacity: 0;
  transition: opacity var(--transition);
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

/* Container */
.modal {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 380px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

/* Close button */
.modal__close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-text-light);
  font-size: 1.5rem;
  line-height: 1;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.modal__close:hover {
  background-color: var(--color-background-alt);
  color: var(--color-text);
}

.modal__close:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Header */
.modal__header {
  padding: var(--spacing-md) var(--spacing-md) 0;
  text-align: center;
}

.modal__title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.modal__subtitle {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  color: var(--color-text-light);
  line-height: 1.5;
}

/* Form */
.modal__form {
  padding: var(--spacing-md);
}

.modal__field {
  margin-bottom: var(--spacing-sm);
}

.modal__label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.modal__input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-text);
  background-color: var(--color-background);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.modal__input::placeholder {
  color: var(--color-text-light);
  opacity: 0.7;
}

.modal__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(42, 111, 127, 0.15);
}

.modal__input:invalid:not(:placeholder-shown) {
  border-color: #c0392b;
}

/* Submit button */
.modal__submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  width: 100%;
  padding: 1rem;
  margin-top: var(--spacing-md);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  background-color: #25D366;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition);
}

.modal__submit:hover {
  background-color: #20BD5A;
  transform: translateY(-1px);
}

.modal__submit:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.modal__submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.modal__submit svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
}

/* Skip link */
.modal__skip {
  display: block;
  text-align: center;
  margin-top: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  color: var(--color-text-light);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.modal__skip:hover {
  color: var(--color-text);
}

.modal__skip:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Error message */
.modal__error {
  display: none;
  padding: 0.625rem 0.75rem;
  margin-top: var(--spacing-sm);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  color: #922;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--border-radius);
  text-align: center;
}

.modal__error.active {
  display: block;
}

/* Body scroll lock when modal is open */
body.modal-open {
  overflow: hidden;
}