/* ==========================================================================
   Pilot Registration Page
   ========================================================================== */

.pilot {
  padding: var(--space-10) 0 var(--space-16);
}

/* One column at every width: a short header, then the form. */
.pilot-grid {
  display: grid;
  gap: var(--space-10);
  max-width: 640px;
  margin: 0 auto;
}

.pilot-kicker {
  display: inline-block;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-radius: var(--radius-sm);
}

.pilot h1 {
  margin-bottom: var(--space-4);
  text-wrap: balance;
}

.pilot-subtitle {
  color: var(--color-ink-muted);
  font-size: var(--font-size-lg);
  margin-bottom: 0;
}

/* The form panel: the one bordered object on the page. */
.pilot-panel {
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

/* Form layout */
.pilot-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.pilot-form[hidden] {
  display: none;
}

.form-field {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}

.form-field label,
.form-field legend {
  display: block;
  padding: 0;
  font-weight: 600;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-ink);
}

.form-field .optional,
.form-field .required {
  margin-left: var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-ink-muted);
}

.form-field input[type="email"],
.form-field input[type="text"],
.form-field textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-ink-light);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px var(--color-brand-tint);
}

.form-field textarea {
  resize: vertical;
  min-height: 96px;
}

/* Tap-to-pick chips: a real checkbox or radio under each one. */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  position: relative;
  margin: 0;
  cursor: pointer;
}

.form-field .chip {
  display: inline-block;
  margin-bottom: 0;
  font-weight: 400;
}

.chip input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.chip span {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.chip:hover span {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

.chip input:checked + span {
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
  border-color: var(--color-brand);
  font-weight: 600;
}

.chip input:focus-visible + span {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.field-hint {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.other-input {
  margin-top: var(--space-3);
}

/* Submit button */
.pilot-form .btn {
  align-self: flex-start;
}

.pilot-form-note {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

/* Messages */
.pilot-form .form-message {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

.pilot-form .form-message-success {
  color: var(--color-good-deep);
  background-color: var(--color-good-tint);
}

.pilot-form .form-message-error {
  color: var(--color-error-deep);
  background-color: var(--color-error-tint);
}

.pilot-form .form-message-info {
  color: var(--color-brand);
  background-color: var(--color-brand-tint);
}

.pilot-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* After a successful submit the form is replaced by next steps. */
.pilot-thanks h2 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-2xl);
}

.pilot-thanks p {
  color: var(--color-ink-muted);
  margin-bottom: var(--space-5);
}

.pilot-thanks .btn {
  margin-bottom: var(--space-6);
}

.pilot-thanks .pilot-thanks-fit {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
}

.pilot-thanks:focus {
  outline: none;
}

@media (min-width: 768px) {
  .pilot {
    padding: var(--space-16) 0 var(--space-24);
  }

  .pilot-panel {
    padding: var(--space-8);
  }
}