/* =========================================================================
   BUSINESS DOM — Tunnel de souscription (étapes 1-4 + success/cancel)
   Réutilise les variables --bd-red, fonts Playfair/Inter de style.css
   ========================================================================= */

:root {
  --tu-bg: #ffffff;
  --tu-bg-soft: #fafafa;
  --tu-selected: #fff7f7;
  --tu-border: #e5e7eb;
  --tu-border-strong: #d1d5db;
  --tu-text: #111827;
  --tu-text-soft: #4b5563;
  --tu-text-muted: #6b7280;
  --tu-text-label: #374151;
  --tu-red: #C9171F;
  --tu-red-dark: #a31218;
  --tu-blue: #1B3D7A;
  --tu-success-bg: #d1f4d8;
  --tu-success-fg: #18733a;
  --tu-warn-bg: #fff4e0;
  --tu-warn-fg: #92531a;
  --tu-radius: 6px;
  --tu-radius-lg: 8px;
  --tu-shadow-soft: 0 2px 6px rgba(15,23,42,.05);
  --tu-shadow-hover: 0 6px 18px rgba(15,23,42,.08);
  --tu-shadow-selected: 0 4px 16px rgba(201,23,31,.10);
  --tu-trans: 180ms cubic-bezier(.4,0,.2,1);
}

/* ============================================
   1. Body / Page
============================================ */
.tunnel-body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--tu-text);
  background: var(--tu-bg-soft);
  min-height: 100vh;
}

.tunnel-page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ============================================
   2. Header
============================================ */
.tunnel-header {
  background: #fff;
  border-bottom: 1px solid var(--tu-border);
  margin-bottom: 32px;
}

.tunnel-header__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.tunnel-header__brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: var(--tu-text);
}

.tunnel-header__brand-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
}

.tunnel-header__brand-sub {
  font-size: .72rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--tu-text-muted);
}

.tunnel-header__help {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--tu-text-soft);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--tu-trans);
}

.tunnel-header__help:hover { color: var(--tu-red); }

.tunnel-header__help-phone {
  font-weight: 600;
  color: var(--tu-text);
  text-decoration: none;
}

/* ============================================
   3. Stepper (4 étapes)
============================================ */
.tunnel-stepper {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0;
  margin: 0 0 40px;
  list-style: none;
}

.tunnel-step {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--tu-text-muted);
  flex: 0 0 auto;
  transition: color var(--tu-trans);
}

.tunnel-step__num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--tu-border);
  color: var(--tu-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .875rem;
  font-weight: 600;
  flex-shrink: 0;
  transition: all var(--tu-trans);
}

.tunnel-step__label {
  font-size: .9rem;
  font-weight: 500;
  white-space: nowrap;
}

.tunnel-step + .tunnel-step::before {
  content: "";
  display: block;
  flex: 0 0 40px;
  height: 2px;
  background: var(--tu-border);
  margin: 0 16px;
  border-radius: 1px;
}

.tunnel-step.is-active { color: var(--tu-red); }
.tunnel-step.is-active .tunnel-step__num {
  background: var(--tu-red);
  border-color: var(--tu-red);
  color: #fff;
  box-shadow: 0 0 0 4px rgba(201,23,31,.12);
}

.tunnel-step.is-done { color: var(--tu-text); }
.tunnel-step.is-done .tunnel-step__num {
  background: var(--tu-text);
  border-color: var(--tu-text);
  color: #fff;
}
.tunnel-step.is-done .tunnel-step__num-text { display: none; }
.tunnel-step.is-done .tunnel-step__num::before {
  content: "✓";
  font-size: 1rem;
  font-weight: 700;
}
.tunnel-step.is-done + .tunnel-step::before { background: var(--tu-text); }

/* ============================================
   4. Main + Layout
============================================ */
.tunnel-main { padding-bottom: 80px; }

.tunnel-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

.tunnel-content { min-width: 0; }

.tunnel-sidebar { position: sticky; top: 24px; }

/* ============================================
   5. Intro section
============================================ */
.tunnel-intro { margin-bottom: 32px; }

.tunnel-eyebrow {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--tu-red);
  margin: 0 0 8px;
}

.tunnel-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--tu-text);
}

.tunnel-lead {
  font-size: 1rem;
  color: var(--tu-text-soft);
  line-height: 1.6;
  margin: 0;
  max-width: 640px;
}

/* ============================================
   6. Cards (radio cards : adresse, pack)
============================================ */
.tunnel-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.tunnel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--tu-trans),
              box-shadow var(--tu-trans),
              border-color var(--tu-trans);
  user-select: none;
}

.tunnel-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--tu-shadow-hover);
}

.tunnel-card.is-selected {
  border-color: var(--tu-red);
  box-shadow: var(--tu-shadow-selected);
  background: var(--tu-selected);
}

.tunnel-card:focus-visible {
  outline: 2px solid var(--tu-red);
  outline-offset: 2px;
}

.tunnel-card__media {
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.85);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 600;
  position: relative;
}

.tunnel-card__media--mitry {
  background: linear-gradient(135deg, #2c3e50 0%, #4b6479 100%);
}

.tunnel-card__media--tricolor {
  background:
    linear-gradient(rgba(0,0,0,.25), rgba(0,0,0,.25)),
    linear-gradient(90deg,
      var(--tu-blue) 0%,
      var(--tu-blue) 33%,
      #ffffff 33%,
      #ffffff 66%,
      var(--tu-red) 66%,
      var(--tu-red) 100%
    );
  color: rgba(20,20,20,.7);
  text-shadow: 0 1px 2px rgba(255,255,255,.7);
}

.tunnel-card__body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.tunnel-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.tunnel-card__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: var(--tu-text);
  line-height: 1.3;
}

.tunnel-card__desc {
  font-size: .9rem;
  color: var(--tu-text-soft);
  line-height: 1.55;
  margin: 0;
}

.tunnel-card__bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
}

.tunnel-card__bullets li {
  position: relative;
  padding-left: 16px;
  font-size: .82rem;
  color: var(--tu-text-soft);
  line-height: 1.4;
}

.tunnel-card__bullets li::before {
  content: "•";
  color: var(--tu-red);
  position: absolute;
  left: 0;
  font-weight: 700;
}

.tunnel-card__check {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,.95);
  color: var(--tu-red);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(.6);
  transition: opacity var(--tu-trans), transform var(--tu-trans);
  pointer-events: none;
}

.tunnel-card.is-selected .tunnel-card__check {
  opacity: 1;
  transform: scale(1);
  box-shadow: 0 2px 8px rgba(201,23,31,.3);
}

.tunnel-card__ribbon {
  position: absolute;
  top: 14px;
  left: -28px;
  transform: rotate(-30deg);
  background: var(--tu-red);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 4px 36px;
  box-shadow: 0 2px 6px rgba(0,0,0,.15);
}

.tunnel-card--featured { border-top: 3px solid var(--tu-red); }

.tunnel-card__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: auto;
  padding-top: 8px;
}

.tunnel-card__price-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--tu-red);
  line-height: 1;
}

.tunnel-card__price-suffix {
  font-size: .82rem;
  color: var(--tu-text-muted);
}

.tunnel-card__total {
  font-size: .85rem;
  color: var(--tu-text-soft);
  padding-top: 4px;
  border-top: 1px dashed var(--tu-border);
}

.tunnel-card__total strong { color: var(--tu-text); }

.tunnel-card__included { margin-top: 4px; }

.tunnel-card__included-title {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--tu-text-muted);
  margin: 0 0 8px;
}

.tunnel-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tunnel-card__list li {
  position: relative;
  padding-left: 22px;
  font-size: .85rem;
  color: var(--tu-text-soft);
  line-height: 1.45;
}

.tunnel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--tu-success-fg);
  border-bottom: 2px solid var(--tu-success-fg);
  transform: rotate(-45deg);
}

/* ============================================
   7. Badges
============================================ */
.tunnel-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

.tunnel-badge--success {
  background: var(--tu-success-bg);
  color: var(--tu-success-fg);
}

.tunnel-badge--tricolor {
  background:
    linear-gradient(90deg,
      var(--tu-blue) 0%,
      var(--tu-blue) 33%,
      #ffffff 33%,
      #ffffff 66%,
      var(--tu-red) 66%,
      var(--tu-red) 100%
    );
  color: var(--tu-text);
  text-shadow: 0 1px 1px rgba(255,255,255,.8);
  border: 1px solid var(--tu-border);
}

.tunnel-badge--save {
  background: var(--tu-success-bg);
  color: var(--tu-success-fg);
}

.tunnel-badge--warn {
  background: var(--tu-warn-bg);
  color: var(--tu-warn-fg);
}

/* ============================================
   8. Form
============================================ */
.tunnel-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.tunnel-fieldset {
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tunnel-legend {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--tu-text);
  padding: 0 0 8px;
  margin: 0;
  border-bottom: 1px solid var(--tu-border);
  width: 100%;
}

.tunnel-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tunnel-label {
  font-size: .875rem;
  font-weight: 500;
  color: var(--tu-text-label);
}

.tunnel-required {
  color: var(--tu-red);
  margin-left: 2px;
}

.tunnel-input,
.tunnel-select,
.tunnel-textarea {
  font-family: 'Inter', sans-serif;
  font-size: .95rem;
  color: var(--tu-text);
  background: #fff;
  border: 1px solid var(--tu-border-strong);
  border-radius: var(--tu-radius);
  padding: 11px 13px;
  width: 100%;
  box-sizing: border-box;
  transition: border-color var(--tu-trans), box-shadow var(--tu-trans);
  -webkit-appearance: none;
  appearance: none;
}

.tunnel-textarea {
  min-height: 80px;
  resize: vertical;
  line-height: 1.5;
}

.tunnel-select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%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' stroke='%236b7280' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.tunnel-input:hover, .tunnel-select:hover, .tunnel-textarea:hover {
  border-color: #9ca3af;
}

.tunnel-input:focus, .tunnel-select:focus, .tunnel-textarea:focus {
  outline: none;
  border-color: var(--tu-red);
  box-shadow: 0 0 0 3px rgba(201,23,31,.12);
}

.tunnel-input[aria-invalid="true"],
.tunnel-select[aria-invalid="true"],
.tunnel-textarea[aria-invalid="true"] {
  border-color: var(--tu-red);
  background: #fff8f8;
}

.tunnel-hint {
  font-size: .8rem;
  color: var(--tu-text-muted);
  line-height: 1.4;
  margin: 0;
}

.tunnel-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Radio cards (Création / Transfert) */
.tunnel-radiogrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.tunnel-radiocard {
  display: block;
  position: relative;
  cursor: pointer;
}

.tunnel-radiocard input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tunnel-radiocard__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--tu-border-strong);
  border-radius: var(--tu-radius);
  transition: all var(--tu-trans);
}

.tunnel-radiocard input:checked + .tunnel-radiocard__inner {
  border-color: var(--tu-red);
  background: var(--tu-selected);
  box-shadow: var(--tu-shadow-selected);
}

.tunnel-radiocard:hover .tunnel-radiocard__inner {
  border-color: var(--tu-red);
}

.tunnel-radiocard__icon {
  width: 38px;
  height: 38px;
  border-radius: var(--tu-radius);
  background: rgba(201,23,31,.08);
  color: var(--tu-red);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tunnel-radiocard__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tunnel-radiocard__text strong {
  font-size: .95rem;
  color: var(--tu-text);
  font-weight: 600;
}

.tunnel-radiocard__text em {
  font-size: .8rem;
  color: var(--tu-text-muted);
  font-style: normal;
}

/* ============================================
   9. Duration tabs
============================================ */
.tunnel-duration-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--tu-border);
  margin-bottom: 28px;
  overflow-x: auto;
}

.tunnel-duration-tab {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 14px 22px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--tu-text-soft);
  cursor: pointer;
  transition: color var(--tu-trans), border-color var(--tu-trans);
  margin-bottom: -1px;
  flex-shrink: 0;
}

.tunnel-duration-tab:hover { color: var(--tu-text); }

.tunnel-duration-tab.is-active {
  color: var(--tu-red);
  border-bottom-color: var(--tu-red);
}

.tunnel-duration-tab__label {
  font-size: 1rem;
  font-weight: 600;
}

.tunnel-duration-tab__sub {
  font-size: .72rem;
  color: var(--tu-text-muted);
}

.tunnel-duration-tab.is-active .tunnel-duration-tab__sub { color: var(--tu-red); }

.tunnel-duration-tab .tunnel-badge {
  font-size: .65rem;
  padding: 2px 7px;
}

/* ============================================
   10. Sidebar récap
============================================ */
.tunnel-recap {
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  padding: 24px;
  box-shadow: var(--tu-shadow-soft);
}

.tunnel-recap__eyebrow {
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--tu-text-muted);
  margin: 0 0 4px;
  font-weight: 600;
}

.tunnel-recap__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 18px;
  color: var(--tu-text);
}

.tunnel-recap__group {
  padding: 10px 0;
  border-bottom: 1px dashed var(--tu-border);
}

.tunnel-recap__group:last-of-type { border-bottom: none; }

.tunnel-recap__group.is-pending .tunnel-recap__value {
  color: var(--tu-text-muted);
  font-style: italic;
  font-weight: 400;
}

.tunnel-recap__label {
  display: block;
  font-size: .78rem;
  color: var(--tu-text-muted);
  margin: 0 0 4px;
  font-weight: 500;
}

.tunnel-recap__value {
  display: block;
  font-size: .92rem;
  color: var(--tu-text);
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.tunnel-recap__sub {
  display: block;
  font-size: .8rem;
  color: var(--tu-text-soft);
  margin-top: 2px;
  font-weight: 400;
}

.tunnel-recap__chip {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  background: rgba(201,23,31,.08);
  color: var(--tu-red);
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .03em;
  vertical-align: middle;
}

.tunnel-recap__totals {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--tu-border);
}

.tunnel-recap__line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 4px 0;
  font-size: .9rem;
  color: var(--tu-text-soft);
}

.tunnel-recap__line strong {
  color: var(--tu-text);
  font-weight: 600;
}

.tunnel-recap__line--strong {
  margin-top: 6px;
  padding-top: 12px;
  border-top: 2px solid var(--tu-text);
  font-size: 1.05rem;
}

.tunnel-recap__line--strong span { font-weight: 600; color: var(--tu-text); }
.tunnel-recap__line--strong strong {
  font-size: 1.2rem;
  color: var(--tu-red);
  font-weight: 700;
}

.tunnel-recap__edit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: .82rem;
  color: var(--tu-text-soft);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--tu-trans);
}

.tunnel-recap__edit:hover { color: var(--tu-red); }

.tunnel-recap__note {
  margin-top: 12px;
  padding-top: 12px;
  font-size: .78rem;
  color: var(--tu-text-muted);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.tunnel-recap__note svg { flex-shrink: 0; margin-top: 2px; }

.tunnel-help {
  margin-top: 16px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  box-shadow: var(--tu-shadow-soft);
}

.tunnel-help__title {
  font-size: .9rem;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--tu-text);
}

.tunnel-help__text {
  font-size: .82rem;
  color: var(--tu-text-soft);
  margin: 0 0 12px;
  line-height: 1.5;
}

.tunnel-help__phone {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--tu-red);
  text-decoration: none;
  margin-bottom: 4px;
}

.tunnel-help__link {
  font-size: .82rem;
  color: var(--tu-text-soft);
  text-decoration: underline;
}

/* ============================================
   11. Summary + Invoice (étape 4)
============================================ */
.tunnel-summary {
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  padding: 24px;
  margin-bottom: 28px;
  box-shadow: var(--tu-shadow-soft);
}

.tunnel-summary__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--tu-border);
}

.tunnel-summary__header h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.2rem;
  margin: 0;
  font-weight: 700;
}

.tunnel-summary__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
}

.tunnel-summary__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--tu-border);
  margin: 0;
}

.tunnel-summary__row:last-child { border-bottom: none; }

.tunnel-summary__row dt {
  font-size: .85rem;
  color: var(--tu-text-muted);
  font-weight: 500;
  margin: 0;
}

.tunnel-summary__row dd {
  font-size: .92rem;
  color: var(--tu-text);
  font-weight: 500;
  margin: 0;
}

.tunnel-link-edit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .85rem;
  color: var(--tu-text-soft);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--tu-trans);
}

.tunnel-link-edit:hover { color: var(--tu-red); }

.tunnel-invoice {
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  padding: 24px;
  margin-bottom: 28px;
  box-shadow: var(--tu-shadow-soft);
}

.tunnel-invoice h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.2rem;
  margin: 0 0 16px;
  font-weight: 700;
}

.tunnel-invoice__table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.tunnel-invoice__table th {
  text-align: left;
  padding: 10px 8px;
  font-size: .78rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--tu-text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--tu-border);
}

.tunnel-invoice__table td {
  padding: 12px 8px;
  border-bottom: 1px solid var(--tu-border);
  color: var(--tu-text);
}

.tunnel-invoice__num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.tunnel-invoice__discount { color: var(--tu-success-fg); font-weight: 600; }

.tunnel-invoice__foot-label {
  text-align: right;
  font-weight: 500;
  color: var(--tu-text-soft);
}

.tunnel-invoice__table tfoot td {
  border-bottom: none;
  padding: 8px;
}

.tunnel-invoice__total-row td {
  border-top: 2px solid var(--tu-text);
  padding-top: 14px !important;
  font-size: 1.05rem;
}

.tunnel-invoice__total-label { color: var(--tu-text) !important; font-weight: 700 !important; }

.tunnel-invoice__total {
  color: var(--tu-red) !important;
  font-weight: 800;
  font-size: 1.3rem;
}

/* ============================================
   12. Conditions (checkboxes)
============================================ */
.tunnel-conditions {
  background: var(--tu-bg-soft);
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  padding: 22px;
  margin-bottom: 24px;
}

.tunnel-conditions h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.05rem;
  margin: 0 0 6px;
  font-weight: 700;
}

.tunnel-checks {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.tunnel-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius);
  cursor: pointer;
  transition: border-color var(--tu-trans);
}

.tunnel-check:hover { border-color: var(--tu-border-strong); }

.tunnel-check__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tunnel-check__box {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 2px solid var(--tu-border-strong);
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  transition: all var(--tu-trans);
  margin-top: 2px;
}

.tunnel-check__input:checked + .tunnel-check__box {
  background: var(--tu-red);
  border-color: var(--tu-red);
  color: #fff;
}

.tunnel-check__input:focus-visible + .tunnel-check__box {
  outline: 2px solid var(--tu-red);
  outline-offset: 2px;
}

.tunnel-check__text {
  font-size: .9rem;
  color: var(--tu-text);
  line-height: 1.5;
}

.tunnel-check__text a { color: var(--tu-red); text-decoration: underline; }

/* ============================================
   13. Sections génériques
============================================ */
.tunnel-section { margin-bottom: 36px; }

.tunnel-section__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--tu-text);
}

.tunnel-section__hint {
  font-size: .9rem;
  color: var(--tu-text-soft);
  margin: 0 0 16px;
  line-height: 1.5;
}

/* ============================================
   14. Savings badge
============================================ */
.tunnel-savings {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--tu-success-bg);
  color: var(--tu-success-fg);
  font-size: .82rem;
  font-weight: 600;
  border-radius: var(--tu-radius);
  margin-top: 8px;
}

.tunnel-savings::before {
  content: "✓";
  font-weight: 700;
}

/* ============================================
   15. Actions / Buttons
============================================ */
.tunnel-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--tu-border);
}

.tunnel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: .95rem;
  font-weight: 600;
  line-height: 1;
  padding: 12px 26px;
  border-radius: var(--tu-radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--tu-trans);
}

.tunnel-btn--primary {
  background: var(--tu-red);
  color: #fff;
  border-color: var(--tu-red);
}

.tunnel-btn--primary:hover {
  background: var(--tu-red-dark);
  border-color: var(--tu-red-dark);
  box-shadow: 0 4px 12px rgba(201,23,31,.25);
}

.tunnel-btn--ghost {
  background: transparent;
  color: var(--tu-text);
  border-color: var(--tu-border-strong);
}

.tunnel-btn--ghost:hover {
  background: #f3f4f6;
  border-color: #9ca3af;
}

.tunnel-btn--lg {
  padding: 15px 32px;
  font-size: 1rem;
}

.tunnel-btn[disabled],
.tunnel-btn[aria-disabled="true"] {
  opacity: .5;
  cursor: not-allowed;
  pointer-events: none;
}

.tunnel-btn.is-loading { pointer-events: none; opacity: .85; }

.tunnel-btn__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: tu-spin .7s linear infinite;
}

.tunnel-btn.is-loading .tunnel-btn__spinner { display: inline-block; }
.tunnel-btn.is-loading .tunnel-btn__label { opacity: .7; }

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

/* ============================================
   16. Errors
============================================ */
.tunnel-error {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 16px;
  background: #fff0f0;
  border: 1px solid #f5c5c5;
  border-radius: var(--tu-radius);
  color: var(--tu-red);
  font-size: .9rem;
  font-weight: 500;
  margin: 16px 0;
}

.tunnel-error::before { content: "⚠"; font-size: 1rem; }

/* ============================================
   17. Securepay mention
============================================ */
.tunnel-securepay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
  font-size: .82rem;
  color: var(--tu-text-muted);
}

.tunnel-securepay__item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tunnel-securepay__sep { color: var(--tu-border-strong); }

/* ============================================
   18. Footer
============================================ */
.tunnel-footer {
  background: #fff;
  border-top: 1px solid var(--tu-border);
  margin-top: 60px;
  padding: 24px 0;
}

.tunnel-footer__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: .82rem;
  color: var(--tu-text-muted);
}

.tunnel-footer__links {
  display: flex;
  gap: 18px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.tunnel-footer__links a {
  color: var(--tu-text-soft);
  text-decoration: none;
}

.tunnel-footer__links a:hover { color: var(--tu-red); }

/* ============================================
   19. Final pages (success / cancel)
============================================ */
.tunnel-final {
  background: #fff;
  border: 1px solid var(--tu-border);
  border-radius: var(--tu-radius-lg);
  padding: 60px 40px;
  max-width: 640px;
  margin: 40px auto;
  text-align: center;
  box-shadow: var(--tu-shadow-soft);
}

.tunnel-final__icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: #fff;
}

.tunnel-final__icon--success {
  background: var(--tu-success-fg);
  box-shadow: 0 0 0 8px rgba(24,115,58,.12);
}

.tunnel-final__icon--cancel {
  background: #d97706;
  box-shadow: 0 0 0 8px rgba(217,119,6,.12);
}

.tunnel-final__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.tunnel-final__sub {
  font-size: 1rem;
  color: var(--tu-text-soft);
  margin: 0 0 32px;
}

.tunnel-final__info {
  background: var(--tu-bg-soft);
  border-left: 3px solid var(--tu-blue);
  padding: 16px 18px;
  text-align: left;
  border-radius: 2px;
  margin-bottom: 28px;
  font-size: .92rem;
  color: var(--tu-text-soft);
  line-height: 1.6;
}

.tunnel-final__info--warn {
  border-left-color: #d97706;
  background: var(--tu-warn-bg);
}

.tunnel-final__recap {
  background: var(--tu-bg-soft);
  padding: 20px;
  border-radius: var(--tu-radius);
  text-align: left;
  margin-bottom: 28px;
}

.tunnel-final__recap-title {
  font-size: .85rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--tu-text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
}

.tunnel-final__recap-list { margin: 0; }

.tunnel-final__recap-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--tu-border);
  font-size: .9rem;
}

.tunnel-final__recap-row:last-child { border-bottom: none; }

.tunnel-final__recap-row dt { color: var(--tu-text-soft); margin: 0; }
.tunnel-final__recap-row dd { color: var(--tu-text); margin: 0; font-weight: 600; }

.tunnel-final__recap-row code {
  font-family: 'Courier New', monospace;
  font-size: .8rem;
  color: var(--tu-text-muted);
}

.tunnel-final__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

.tunnel-final__support {
  margin-top: 28px;
  font-size: .85rem;
  color: var(--tu-text-muted);
  line-height: 1.6;
}

.tunnel-final__support a {
  color: var(--tu-red);
  text-decoration: none;
  font-weight: 500;
}

/* ============================================
   20. Responsive
============================================ */
@media (max-width: 900px) {
  .tunnel-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .tunnel-sidebar { position: static; order: 2; }
  .tunnel-summary__row { grid-template-columns: 1fr; gap: 2px; }
  .tunnel-summary__row dt { font-size: .78rem; }
}

@media (max-width: 768px) {
  .tunnel-header__inner { padding: 12px 16px; }
  .tunnel-page { padding: 0 16px 60px; }
  .tunnel-header__help-label { display: none; }

  .tunnel-stepper { margin-bottom: 24px; overflow-x: auto; padding-bottom: 4px; }
  .tunnel-step__label { display: none; }
  .tunnel-step__num { width: 28px; height: 28px; font-size: .8rem; }
  .tunnel-step + .tunnel-step::before { flex: 0 0 20px; margin: 0 6px; }

  .tunnel-grid-2 { grid-template-columns: 1fr; }
  .tunnel-radiogrid { grid-template-columns: 1fr; }
  .tunnel-cards { grid-template-columns: 1fr; }
  .tunnel-card__bullets { grid-template-columns: 1fr; }

  .tunnel-actions { flex-direction: column-reverse; gap: 12px; }
  .tunnel-actions .tunnel-btn { width: 100%; }

  .tunnel-final { padding: 40px 24px; margin: 24px 0; }
  .tunnel-final__title { font-size: 1.5rem; }

  .tunnel-footer__inner { flex-direction: column; text-align: center; gap: 12px; }
  .tunnel-footer__links { justify-content: center; flex-wrap: wrap; }
}

/* ============================================
   21. Reduced motion
============================================ */
@media (prefers-reduced-motion: reduce) {
  .tunnel-card, .tunnel-card:hover,
  .tunnel-btn, .tunnel-btn:hover,
  .tunnel-step, .tunnel-step__num,
  .tunnel-input, .tunnel-select, .tunnel-textarea,
  .tunnel-radiocard__inner, .tunnel-duration-tab,
  .tunnel-check__box, .tunnel-card__check {
    transition: none !important;
    transform: none !important;
  }
  .tunnel-btn__spinner { animation: none; }
}