/*
 * Net Atlantic form component (NACAPTCHA-22 visual refresh).
 * Scoped to .na-form so it never touches other page styles.
 *   .na-form              light background (default)
 *   .na-form--on-dark     on the blue/gradient sections (white labels)
 * Behaviour (validation, reCAPTCHA, busy state) lives in /assets/js/na-forms.js.
 */
.na-form {
  --na-brand: #37c7ff;        /* site accent */
  --na-ink: #0b2a4a;          /* dark navy for text/buttons */
  --na-text: #222;
  --na-muted: #5b6573;
  --na-field-bg: #fff;
  --na-border: #c9d2dc;
  --na-focus: #0a84c6;
  --na-error: #c62828;
  --na-radius: 12px;
  font-family: Poppins, system-ui, sans-serif;
  color: var(--na-text);
  text-align: left;
  max-width: 760px;
  margin: 0 auto;
}
.na-form--on-dark {
  --na-text: #fff;
  --na-muted: rgba(255, 255, 255, .85);
  --na-error: #fff2a8;        /* readable on blue */
}

.na-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
}
.na-field--full { grid-column: 1 / -1; }
@media (max-width: 600px) {
  .na-form__grid { grid-template-columns: 1fr; }
}

.na-field label {
  display: block;
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--na-text);
}
.na-field .na-req { color: var(--na-focus); margin-left: 2px; }
.na-form--on-dark .na-field .na-req { color: #fff; }
.na-field .na-opt { font-weight: 400; color: var(--na-muted); }

.na-field input,
.na-field textarea,
.na-field select {
  display: block;
  box-sizing: border-box;     /* pages without a CSS reset (the whitepaper template) */
  width: 100%;
  min-height: 48px;
  padding: 11px 16px;
  font: 400 16px/1.4 Poppins, system-ui, sans-serif;   /* 16px: no zoom on iOS */
  color: #1d2733;
  background: var(--na-field-bg);
  border: 1px solid var(--na-border);
  border-radius: var(--na-radius);
  box-shadow: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
  appearance: none;
}
.na-field textarea { min-height: 96px; resize: vertical; }
.na-field select {
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235b6573' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

/* Narrow columns (e.g. the whitepaper sidebar): always one column. */
.na-form--compact { max-width: 420px; }
.na-form--compact .na-form__grid { grid-template-columns: 1fr; gap: 14px; }
.na-form--compact .na-btn { width: 100%; padding: 0 20px; }
.na-field input::placeholder,
.na-field textarea::placeholder { color: #8a94a1; }
.na-field input:focus,
.na-field textarea:focus,
.na-field select:focus {
  outline: none;
  border-color: var(--na-focus);
  box-shadow: 0 0 0 3px rgba(10, 132, 198, .25);
}
.na-form--on-dark .na-field input:focus,
.na-form--on-dark .na-field textarea:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .55);
}
.na-field [aria-invalid="true"] {
  border-color: #c62828;
  box-shadow: 0 0 0 1px #c62828;
}

.na-field__hint,
.na-field__error {
  margin: 6px 2px 0;
  font-size: 13px;
  line-height: 1.35;
}
.na-field__hint { color: var(--na-muted); }
.na-field__error { color: var(--na-error); font-weight: 600; }
.na-field__counter { float: right; }

/* Section headings inside long forms */
.na-form__section {
  margin: 30px 0 14px;
  font-size: 20px;
  font-weight: 700;
  color: var(--na-text);
}
.na-form__section:first-child { margin-top: 0; }
.na-form__intro { margin: -6px 0 14px; font-size: 14px; line-height: 1.5; color: var(--na-muted); }

/* Radio / checkbox groups: <fieldset class="na-choice"> */
.na-choice { margin: 0; padding: 0; border: 0; min-width: 0; }
.na-form__grid + .na-choice,
.na-choice + .na-form__grid,
.na-choice + .na-choice { margin-top: 22px; }
.na-choice legend {
  float: left; width: 100%;
  margin: 0 0 8px; padding: 0;
  font-size: 14px; font-weight: 600; color: var(--na-text);
}
.na-choice legend + * { clear: both; }
.na-option {
  display: flex; align-items: flex-start; gap: 12px;
  margin: 0 0 10px; padding: 14px 16px;
  font-size: 15px; font-weight: 400; line-height: 1.45; color: #1d2733;
  background: var(--na-field-bg);
  border: 1px solid var(--na-border);
  border-radius: var(--na-radius);
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
}
.na-option:hover { border-color: var(--na-focus); }
.na-option input { flex: none; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--na-focus); cursor: pointer; }
.na-option:has(input:checked) { border-color: var(--na-focus); box-shadow: 0 0 0 2px rgba(10, 132, 198, .3); }
.na-option:has(input:focus-visible) { box-shadow: 0 0 0 3px rgba(10, 132, 198, .35); }
.na-option strong { font-weight: 600; }
.na-option a { color: var(--na-focus); }
.na-choice--inline { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.na-choice--inline legend, .na-choice--inline .na-field__error { grid-column: 1 / -1; }
@media (max-width: 600px) { .na-choice--inline { grid-template-columns: 1fr; } }
.na-choice[aria-invalid="true"] .na-option { border-color: #c62828; }

/* Honeypot: hidden from people, visible to bots. */
.na-hp {
  position: absolute !important;
  left: -10000px !important;
  width: 1px; height: 1px; overflow: hidden;
}

.na-form__actions {
  margin-top: 26px;
  text-align: center;
}
.na-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 40px;
  font: 600 16px/1 Poppins, system-ui, sans-serif;
  letter-spacing: .02em;
  color: #fff;
  background: var(--na-ink);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color .15s, transform .05s;
}
.na-btn:hover { background: #12406f; }
.na-btn:active { transform: translateY(1px); }
.na-btn:focus-visible { outline: 3px solid var(--na-brand); outline-offset: 3px; }
.na-form--on-dark .na-btn { color: var(--na-ink); background: #fff; }
.na-form--on-dark .na-btn:hover { background: #e6f7ff; }
.na-btn[disabled] { opacity: .7; cursor: progress; }
.na-btn__spinner {
  display: none;
  width: 18px; height: 18px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: na-spin .7s linear infinite;
}
.na-form[aria-busy="true"] .na-btn__spinner { display: inline-block; }
@keyframes na-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .na-btn__spinner { animation-duration: 2s; }
  .na-field input, .na-field textarea, .na-btn { transition: none; }
}

.na-form__status {
  min-height: 1.4em;
  margin: 12px 0 0;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  color: var(--na-error);
}
.na-form__legal {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
  color: var(--na-muted);
}
.na-form__legal a { color: inherit; text-decoration: underline; }
.na-form__recaptcha { height: 0; }