.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:root {
  --bleu-nuit: #2d1b4e;
  --bleu-ocean: #6c3fd1;
  --turquoise: #7c4dff;
  --sable: #c9a8f5;
  --sable-clair: #f3eefc;
  --gris-fonce: #2a2438;
  --gris-clair: #f6f4fb;
  --blanc: #ffffff;
  --rouge: #d64545;
  --vert: #2f9e5b;
  --radius: 14px;
  --ombre: 0 8px 24px rgba(45, 27, 78, 0.14);
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--gris-fonce);
  background: var(--gris-clair);
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

img, svg { max-width: 100%; display: block; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  background: var(--blanc);
  border-bottom: 1px solid #e3e8ea;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--bleu-nuit);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--turquoise), var(--bleu-ocean));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

.main-nav {
  display: flex;
  gap: 28px;
  font-weight: 500;
}

.main-nav a {
  color: var(--gris-fonce);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.main-nav a.active,
.main-nav a:hover {
  color: var(--bleu-ocean);
  border-bottom-color: var(--turquoise);
}

.info-banner {
  background: var(--sable-clair);
  color: #4a2f8f;
  text-align: center;
  font-size: 0.85rem;
  padding: 8px 12px;
  border-bottom: 1px solid #d9c4f5;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--bleu-nuit), var(--bleu-ocean) 60%, var(--turquoise));
  color: white;
  padding: 64px 0 110px;
  position: relative;
}

.hero h1 {
  font-size: 2.4rem;
  max-width: 640px;
  margin: 0 0 12px;
}

.hero p {
  max-width: 560px;
  opacity: 0.92;
  font-size: 1.05rem;
}

/* Search card */
.search-card {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  padding: 24px;
  margin-top: -70px;
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 16px;
  align-items: end;
}

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

.field label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #5b6b70;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.field select,
.field input {
  padding: 11px 12px;
  border: 1px solid #d7dee0;
  border-radius: 8px;
  font-size: 0.95rem;
  background: white;
  color: var(--gris-fonce);
}

.field select:focus,
.field input:focus {
  outline: 2px solid var(--turquoise);
  outline-offset: 1px;
}

#stripe-card-element {
  padding: 11px 12px;
  border: 1px solid #d7dee0;
  border-radius: 8px;
  background: white;
}

#stripe-card-element.StripeElement--focus {
  outline: 2px solid var(--turquoise);
  outline-offset: 1px;
}

#stripe-card-element.StripeElement--invalid {
  border-color: var(--rouge);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 12px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.05s ease, box-shadow 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--turquoise);
  color: white;
}

.btn-primary:hover { background: #128f8f; }

.btn-secondary {
  background: var(--blanc);
  color: var(--bleu-ocean);
  border: 1px solid var(--bleu-ocean);
}

.btn-secondary:hover { background: var(--sable-clair); }

.btn-block { width: 100%; }

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Sections */
.section {
  padding: 56px 0;
}

.section-title {
  font-size: 1.6rem;
  margin-bottom: 6px;
  color: var(--bleu-nuit);
}

.section-subtitle {
  color: #5b6b70;
  margin-bottom: 30px;
}

/* Vehicle grid */
.vehicle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.vehicle-card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.vehicle-media {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.4rem;
  background: linear-gradient(135deg, #f1eaf9, #e3d3f7);
  position: relative;
  overflow: hidden;
}

/* La photo (si présente) se pose au-dessus en position absolue ; si elle est
   absente ou introuvable, le script la retire du DOM et l'emoji apparaît. */
.vehicle-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.vehicle-emoji-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
}

.vehicle-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.vehicle-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--bleu-ocean);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.vehicle-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--gris-fonce);
}

.vehicle-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: #5b6b70;
}

.vehicle-specs span {
  background: var(--gris-clair);
  padding: 4px 9px;
  border-radius: 20px;
}

.vehicle-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
}

.price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--bleu-nuit);
}

.price small {
  font-size: 0.75rem;
  font-weight: 400;
  color: #5b6b70;
}

/* Filters */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.filter-chip {
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid #d7dee0;
  background: white;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
}

.filter-chip.active {
  background: var(--bleu-nuit);
  color: white;
  border-color: var(--bleu-nuit);
}

/* Steps */
.steps {
  display: flex;
  gap: 8px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #8a969a;
  font-weight: 600;
}

.step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #e1e7e9;
  color: #6a787d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.step.done .step-num,
.step.current .step-num {
  background: var(--turquoise);
  color: white;
}

.step.done, .step.current { color: var(--gris-fonce); }

.step-sep {
  width: 30px;
  height: 1px;
  background: #d7dee0;
  align-self: center;
}

/* Booking layout */
.booking-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 30px;
  align-items: start;
}

.card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  padding: 26px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.2rem;
  color: var(--bleu-nuit);
}

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

.form-grid .full { grid-column: 1 / -1; }

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.95rem;
  border-bottom: 1px dashed #e3e8ea;
}

.summary-row.total {
  border-bottom: none;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--bleu-nuit);
  padding-top: 14px;
}

.summary-vehicle {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid #e3e8ea;
}

.summary-vehicle .emoji {
  font-size: 2.4rem;
  background: var(--gris-clair);
  border-radius: 10px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.vehicle-photo-sm {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.vehicle-emoji-fallback-sm {
  display: flex;
  align-items: center;
  justify-content: center;
}

.badge-insurance {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--sable-clair);
  border: 1px solid #d9c4f5;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 0.88rem;
  margin-top: 14px;
}

.error-text {
  color: var(--rouge);
  font-size: 0.82rem;
  min-height: 18px;
}

.hint-text {
  color: #8a969a;
  font-size: 0.78rem;
}

/* Payment */
.card-brands {
  display: flex;
  gap: 8px;
  font-size: 1.4rem;
}

.pay-lock {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #5b6b70;
  font-size: 0.82rem;
  margin-top: 14px;
  justify-content: center;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.5);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}

.btn.loading .spinner { display: inline-block; }
.btn.loading .btn-label { opacity: 0.85; }

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

/* Confirmation */
.confirm-hero {
  text-align: center;
  padding: 50px 0 10px;
}

.confirm-check {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--vert);
  color: white;
  font-size: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.ref-code {
  display: inline-block;
  background: var(--gris-clair);
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 10px 0 30px;
}

/* Footer */
.site-footer {
  background: var(--bleu-nuit);
  color: #cfe3e8;
  padding: 40px 0;
  margin-top: 60px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 30px;
}

.footer-grid h4 {
  color: white;
  margin-bottom: 10px;
}

.footer-grid a {
  display: block;
  padding: 4px 0;
  color: #cfe3e8;
}

.footer-bottom {
  text-align: center;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.8rem;
  color: #9fc0c8;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #5b6b70;
}

@media (max-width: 900px) {
  .search-card { grid-template-columns: 1fr 1fr; }
  .booking-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .main-nav { display: none; }
  .search-card { grid-template-columns: 1fr; margin-top: -40px; }
  .form-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
}