/*
  Studio 36 — Tunnel de réservation (design.md §11). Layout minimal dédié
  (layout-tunnel.php) : header réduit, barre de progression, panneau
  récapitulatif persistant. Aucune photo de studio fournie a ce jour : le
  sélecteur de studio reutilise .photo-placeholder (cards.css), meme
  traitement que le reste du site (Phase 4/5).
*/

/* ---------- Chrome du tunnel ---------- */

.tunnel-header {
  border-bottom: 1px solid var(--border-hairline);
  background: var(--bg-base);
}

.tunnel-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.tunnel-header__logo img {
  display: block;
  width: 36px;
  height: 36px;
}

.tunnel-header__exit {
  color: var(--text-secondary);
  font-size: var(--text-body-sm-size);
}

.tunnel-header__exit:hover {
  color: var(--accent);
}

.tunnel-progress {
  border-bottom: 1px solid var(--border-hairline);
  background: var(--bg-raised);
}

.tunnel-progress__inner {
  padding-block: var(--space-4);
}

.tunnel-progress__count {
  color: var(--accent);
  margin-bottom: var(--space-2);
}

.tunnel-progress__steps {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  list-style: none;
}

.tunnel-progress__step {
  font-size: var(--text-body-sm-size);
  color: var(--text-muted);
}

.tunnel-progress__step.is-done {
  color: var(--text-secondary);
}

.tunnel-progress__step.is-done::before {
  content: '✓ ';
  color: var(--success);
}

.tunnel-progress__step.is-current {
  color: var(--accent);
  font-weight: 600;
}

.tunnel-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  color: var(--text-secondary);
  font-size: var(--text-body-sm-size);
  transition: color var(--duration-micro) var(--ease-out);
}

.tunnel-back svg {
  width: 14px;
  height: 14px;
}

.tunnel-back:hover {
  color: var(--accent-warm);
}

.tunnel-main {
  padding-block: var(--space-8);
}

.tunnel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 1024px) {
  .tunnel-layout {
    grid-template-columns: 1fr 340px;
  }
}

.tunnel-step h1 {
  margin-top: var(--space-3);
}

/* ---------- Panneau récapitulatif (design.md §5.11) ---------- */

.tunnel-summary {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

@media (min-width: 1024px) {
  .tunnel-summary {
    position: sticky;
    top: var(--space-6);
  }
}

.tunnel-summary__mobile-toggle {
  background: var(--surface-1);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.tunnel-summary__mobile-heading {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
}

@media (min-width: 1024px) {
  .tunnel-summary__mobile-heading {
    display: none;
  }
}

.tunnel-summary__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.tunnel-summary__mobile-toggle[open] .tunnel-summary__body {
  margin-top: var(--space-4);
}

.tunnel-summary__empty {
  color: var(--text-secondary);
}

.tunnel-summary__studios {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
}

.tunnel-summary__studio {
  font-family: var(--font-display);
  font-size: var(--text-h5-size);
  color: var(--text-primary);
  padding-left: var(--space-3);
  border-left: 2px solid var(--accent);
  --studio-color: var(--accent);
  border-left-color: var(--studio-color);
}

.tunnel-summary__studio--plateau-show { --studio-color: var(--studio-plateau-show); }
.tunnel-summary__studio--brique-room { --studio-color: var(--studio-brique-room); }
.tunnel-summary__studio--blue-room { --studio-color: var(--studio-blue-room); }

.tunnel-summary__line {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: var(--text-body-sm-size);
  color: var(--text-secondary);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-hairline);
}

.tunnel-summary__options ul {
  margin-top: var(--space-1);
  list-style: none;
  color: var(--text-secondary);
  font-size: var(--text-body-sm-size);
}

.tunnel-summary__total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-hairline);
}

.tunnel-summary__price {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.125rem;
}

.tunnel-summary__price--quote {
  font-size: var(--text-body-sm-size);
  color: var(--text-secondary);
}

.tunnel-summary__cta {
  width: 100%;
}

/* ---------- Étape 1 — Sélecteur de studio (design.md §5.5, §11.2) ---------- */

.studio-picker {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.studio-picker__card {
  position: relative;
  display: block;
  cursor: pointer;
  --studio-color: var(--accent);
}

.studio-picker__card--plateau-show { --studio-color: var(--studio-plateau-show); }
.studio-picker__card--brique-room { --studio-color: var(--studio-brique-room); }
.studio-picker__card--blue-room { --studio-color: var(--studio-blue-room); }

.studio-picker__media {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-hairline);
  transition: border-color var(--duration-micro) var(--ease-out);
}

.studio-picker__card.is-selected .studio-picker__media,
.studio-picker__card:has(input:checked) .studio-picker__media,
.studio-picker__card:has(input:focus-visible) .studio-picker__media {
  border-color: var(--studio-color);
}

.studio-picker__check {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 1;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
}

.studio-picker__card.is-selected .studio-picker__check,
.studio-picker__card:has(input:checked) .studio-picker__check {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-on-accent);
}

.studio-picker__check svg {
  width: 14px;
  height: 14px;
}

.studio-picker__name {
  display: block;
  margin-top: var(--space-3);
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--text-primary);
}

/* ---------- Étape 2 — Calendrier (design.md §5.5, §11.3) ---------- */

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-5);
  list-style: none;
}

.calendar-legend__item {
  font-size: var(--text-body-sm-size);
  color: var(--text-secondary);
  padding-left: var(--space-3);
  position: relative;
  --studio-color: var(--accent);
}

.calendar-legend__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--studio-color);
}

.calendar-legend__item--plateau-show { --studio-color: var(--studio-plateau-show); }
.calendar-legend__item--brique-room { --studio-color: var(--studio-brique-room); }
.calendar-legend__item--blue-room { --studio-color: var(--studio-blue-room); }

.calendar {
  margin-top: var(--space-6);
  max-width: 480px;
}

.calendar__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.calendar__month-label {
  font-family: var(--font-display);
  font-size: var(--text-h5-size);
  color: var(--text-primary);
}

.calendar__weekdays,
.calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar__weekdays span {
  text-align: center;
  font-size: var(--text-micro-size);
  color: var(--text-muted);
  padding-bottom: var(--space-2);
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2px;
  border-radius: var(--radius-xs);
  background: var(--surface-1);
  border: 1px solid var(--border-hairline);
  color: var(--text-primary);
  font-family: var(--font-body);
  cursor: pointer;
}

.calendar-day:hover,
.calendar-day:focus-visible {
  border-color: var(--accent);
}

.calendar-day.is-selected {
  background: var(--accent);
  color: var(--bg-base);
  border-color: var(--accent);
}

.calendar-day--empty {
  background: transparent;
  border: none;
  cursor: default;
}

.calendar-day--unavailable {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
  text-decoration: line-through;
  cursor: not-allowed;
}

.calendar-day__dots {
  display: flex;
  gap: 2px;
}

.calendar-day__dot {
  width: 4px;
  height: 4px;
  border-radius: var(--radius-pill);
  --studio-color: var(--accent);
  background: var(--studio-color);
}

.calendar-day.is-selected .calendar-day__dot {
  background: var(--bg-base);
}

.calendar-day__dot--plateau-show { --studio-color: var(--studio-plateau-show); }
.calendar-day__dot--brique-room { --studio-color: var(--studio-brique-room); }
.calendar-day__dot--blue-room { --studio-color: var(--studio-blue-room); }

/* ---------- Étape 3 — Horaire & durée (design.md §5.5, §11.4, §11.9) ---------- */

.duration-tabs {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  border-bottom: 1px solid var(--border-hairline);
}

.duration-tabs__tab {
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.duration-tabs__tab.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.slot-picker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.slot-picker__empty {
  margin-top: var(--space-6);
  color: var(--text-secondary);
}

.slot-chip {
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--surface-1);
  border: 1px solid var(--border-hairline);
  color: var(--text-primary);
  font-family: var(--font-mono);
  cursor: pointer;
}

.slot-chip:hover,
.slot-chip:focus-visible {
  border-color: var(--accent);
}

.slot-chip.is-selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-base);
}

/* ---------- Étape 4 — Options (design.md §11.5) ---------- */

.option-picker {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}

.option-picker__item {
  padding: var(--space-4);
  background: var(--surface-1);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  align-items: center;
}

.option-picker__item span {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.option-picker__mode {
  color: var(--accent);
}

.option-picker__price {
  font-family: var(--font-mono);
  color: var(--accent-warm);
}

/* ---------- Étape 5 — Coordonnées (design.md §11.6) ---------- */

.contact-step__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 600px) {
  .contact-step__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.tunnel-step form > .field,
.tunnel-step form > .contact-step__grid {
  margin-bottom: var(--space-5);
}

/* ---------- Étape 6 — Résumé (design.md §11.7) ---------- */

.summary-review {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.summary-review__block {
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
}

.summary-review__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.summary-review__head a {
  font-size: var(--text-body-sm-size);
  color: var(--accent);
}

.summary-review__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.summary-review__options li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
}

.summary-review__options li span:last-child {
  flex: none;
  font-family: var(--font-mono);
  color: var(--accent-warm);
  white-space: nowrap;
}

.summary-review__notice {
  margin-top: var(--space-6);
  color: var(--text-secondary);
}

/* ---------- Confirmation autonome (design.md §11.8, §14.9) ---------- */

.confirmation-page {
  text-align: center;
  max-width: 560px;
}

.confirmation-page__icon {
  color: var(--success);
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-5);
}

.confirmation-page__icon svg {
  width: 100%;
  height: 100%;
}

.confirmation-page .summary-review {
  text-align: left;
}