/* =============================================
   MWClinical — Survey / Eligibility Styles
   ============================================= */

.survey-page {
  min-height: calc(100dvh - 60px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-6) var(--space-4) var(--space-16);
}

/* Progress Bar */
.survey-progress {
  width: 100%;
  max-width: 600px;
  margin-bottom: var(--space-8);
}

.survey-progress__bar {
  width: 100%;
  height: 4px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.survey-progress__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.survey-progress__text {
  display: block;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
}

/* Survey Container */
.survey-container {
  width: 100%;
  max-width: 600px;
  flex: 1;
}

/* Steps */
.survey-step {
  display: none;
  animation: fadeInUp 0.35s ease;
}

.survey-step.active {
  display: block;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.survey-step__icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: var(--radius-xl);
  margin: 0 auto var(--space-6);
}

.survey-step__icon--success {
  width: 88px;
  height: 88px;
  border-radius: 50%;
}

.survey-step__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.survey-step__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.survey-step__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 48ch;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.survey-step__note {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  background: var(--color-primary-light);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-8);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.survey-start-btn {
  margin-top: var(--space-2);
}

/* Step 0 centered */
[data-step="0"],
[data-step="7"] {
  text-align: center;
}
[data-step="0"] .survey-step__subtitle,
[data-step="7"] .survey-step__subtitle {
  margin-inline: auto;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-5);
}

.form-group > label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.required {
  color: #c53030;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235f6b7a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: var(--space-10);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

/* Form Grid */
.form-grid {
  display: grid;
  gap: var(--space-4);
}

.form-grid--2col {
  grid-template-columns: 1fr 1fr;
}

.form-grid--3col {
  grid-template-columns: 1fr 1fr 1fr;
}

@media (max-width: 480px) {
  .form-grid--3col {
    grid-template-columns: 1fr 1fr;
  }
  .form-grid--3col .form-group:first-child {
    grid-column: 1 / -1;
  }
}

/* Radio Cards */
.radio-group {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.radio-group--vertical {
  flex-direction: column;
}

.radio-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  flex: 1;
  min-width: 0;
  transition: border-color 180ms ease, background 180ms ease;
}

.radio-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.radio-card input {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.radio-card input:checked + .radio-card__label {
  color: var(--color-primary);
  font-weight: 600;
}

.radio-card:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.radio-card__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.radio-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
}

.radio-card--wide {
  flex-direction: row;
  flex-wrap: wrap;
}

.radio-card--wide .radio-card__desc {
  width: 100%;
  padding-left: calc(18px + var(--space-3));
}

/* Conditional Fields */
.conditional-field {
  margin-top: var(--space-3);
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-primary);
  animation: fadeInUp 0.25s ease;
}

.conditional-field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

/* Range / Slider */
.range-container {
  margin-top: var(--space-3);
}

.range-input {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
  outline: none;
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid var(--color-surface);
  box-shadow: var(--shadow-md);
}

.range-input::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 3px solid var(--color-surface);
  box-shadow: var(--shadow-md);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.range-value {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
}

.range-hint {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-1);
}

/* Checkboxes / Consent */
.consent-group {
  margin-bottom: var(--space-4);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.checkbox-label a {
  color: var(--color-primary);
}

/* Navigation */
.survey-nav {
  width: 100%;
  max-width: 600px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-6);
  margin-top: auto;
}

.survey-nav .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* Confirmation */
.survey-confirmation-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-8);
  text-align: left;
  max-width: 400px;
  margin-inline: auto;
}

.confirmation-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.confirmation-item svg {
  flex-shrink: 0;
}

.confirmation-item a {
  color: var(--color-primary);
}

/* Error States */
.form-group.has-error input,
.form-group.has-error textarea,
.form-group.has-error select {
  border-color: #c53030;
}

.form-error {
  font-size: var(--text-xs);
  color: #c53030;
  margin-top: var(--space-1);
}

/* Survey Footer */
.survey-footer {
  margin-top: auto;
}

.survey-footer .footer__bottom {
  text-align: center;
}

.survey-footer .footer__medical-disclaimer {
  margin-inline: auto;
}