/* ============================================
   Variables CSS - Vélos BIBI
   ============================================ */
:root {
  --bg: #F6F3EE;
  --text: #1C1C1C;
  --muted: #5A5A5A;
  --brand-orange: #FB901D;
  --brand-orange-2: #FB8C19;
  --brand-yellow: #F0D769;
  --card: #FFFFFF;
  --border: rgba(0, 0, 0, 0.08);
  
  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Transitions */
  --transition: all 0.3s ease;
}

/* ============================================
   Reset & Base
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   Typographie
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--text);
}

h1 {
  font-size: 2.5rem;
  color: var(--brand-orange);
  text-align: center;
}

h2 {
  font-size: 2rem;
  color: var(--brand-orange);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-sm);
}

/* Section À propos - titres centrés en noir */
.about-content h3 {
  text-align: center;
  color: var(--text);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.about-content h3:first-child {
  margin-top: 0;
}

.about-content p {
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--muted);
}

a {
  color: var(--brand-orange);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--brand-orange-2);
  text-decoration: underline;
}

a:focus {
  outline: 2px solid var(--brand-orange);
  outline-offset: 2px;
}

/* ============================================
   Layout principal
   ============================================ */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md);
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
  background-color: var(--card);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 60px;
  width: auto;
}

.logo img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

/* Navigation desktop */
nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

nav a {
  color: var(--text);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: var(--transition);
}

nav a:hover {
  color: var(--brand-orange);
  text-decoration: none;
  background-color: rgba(251, 144, 29, 0.1);
}

nav a:focus-visible,
.burger-menu:focus-visible,
header a:focus-visible {
  outline: 2px solid var(--brand-orange);
  outline-offset: 2px;
  border-radius: 2px;
}

nav a:focus:not(:focus-visible),
.burger-menu:focus:not(:focus-visible),
header a:focus:not(:focus-visible) {
  outline: none;
}

nav a.active {
  color: var(--brand-orange);
  background-color: rgba(251, 144, 29, 0.1);
  font-weight: 600;
}

/* Menu burger (mobile) */
.burger-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.burger-menu span {
  width: 25px;
  height: 3px;
  background-color: var(--text);
  transition: var(--transition);
  border-radius: 2px;
}

.burger-menu.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.burger-menu.active span:nth-child(2) {
  opacity: 0;
}

.burger-menu.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Navigation mobile */
@media (max-width: 768px) {
  .burger-menu {
    display: flex;
  }
  
  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  nav.active {
    max-height: 500px;
  }
  
  nav ul {
    flex-direction: column;
    padding: var(--spacing-sm) var(--spacing-md);
    gap: var(--spacing-xs);
    align-items: stretch;
  }
  
  nav a {
    display: block;
    padding: var(--spacing-sm);
  }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background-color: var(--bg);
  padding: var(--spacing-md) var(--spacing-md);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.hero-logo {
  margin-bottom: var(--spacing-sm);
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo img {
  max-width: 400px;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Boutons
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--brand-orange);
  color: white;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-size: 1rem;
}

.btn:hover {
  background-color: var(--brand-orange-2);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--brand-orange);
  outline-offset: 2px;
}

.btn:focus:not(:focus-visible) {
  outline: none;
}

.btn:disabled,
.btn.btn-disabled {
  background-color: var(--muted);
  color: white;
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
  box-shadow: none;
}

.btn:disabled:hover,
.btn.btn-disabled:hover {
  background-color: var(--muted);
  color: white;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid var(--brand-orange);
  color: var(--brand-orange);
}

.btn-secondary:hover {
  background-color: var(--brand-orange);
  color: white;
}

/* ============================================
   Cartes / Cards
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.card {
  background-color: var(--card);
  border: 2px solid rgba(0, 0, 0, 0.12);
  border-radius: 8px;
  padding: var(--spacing-md);
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(-6px);
  border-color: var(--brand-orange);
}

.card h3 {
  color: var(--brand-orange);
  margin-top: 0;
  text-align: center;
  width: 100%;
}

.card p {
  text-align: center;
  width: 100%;
}

.card .btn {
  margin-top: var(--spacing-md);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   Sections
   ============================================ */
.section {
  margin: var(--spacing-lg) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.separator {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-orange), var(--brand-yellow));
  margin: var(--spacing-md) auto;
  border-radius: 2px;
}

/* ============================================
   Galerie
   ============================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  cursor: pointer;
  aspect-ratio: 4/3;
  background-color: var(--card);
  border: 1px solid var(--border);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  font-size: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 1001;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  font-size: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 1001;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

.lightbox-counter {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: white;
  background: rgba(0, 0, 0, 0.5);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  font-size: 1rem;
}

/* ============================================
   Formulaire de contact
   ============================================ */
.contact-form {
  max-width: 600px;
  margin: var(--spacing-md) auto;
  background-color: var(--card);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-orange);
  box-shadow: 0 0 0 3px rgba(251, 144, 29, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.error-message {
  display: none;
  color: #d32f2f;
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  font-weight: 400;
}

.form-group input:invalid:not(:focus):not(:placeholder-shown),
.form-group textarea:invalid:not(:focus):not(:placeholder-shown) {
  border-color: #d32f2f;
}

.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
  border-color: #4caf50;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.contact-item {
  background-color: var(--card);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--border);
  text-align: center;
}

.contact-item h3 {
  color: var(--brand-orange);
  margin-top: 0;
}

.contact-item a {
  color: var(--brand-orange);
  font-weight: 500;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  padding: 1.5rem 1rem;
  margin-top: var(--spacing-xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-section {
  flex: 0 1 auto;
}

.footer-section:first-child {
  text-align: left;
}

.footer-section:nth-child(2) {
  text-align: right;
}

.footer-section h3 {
  color: var(--brand-orange);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  margin-top: 0;
}

/* Grille Contact en 2 colonnes */
.footer-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: flex-start;
}

.footer-contact-col {
  display: flex;
  flex-direction: column;
}

.footer-contact-col p {
  margin-bottom: 0.5rem;
}

.footer-section p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.footer-section a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--brand-orange);
  text-decoration: underline;
}

/* Section Suivez-nous avec icônes alignées */
.footer-section:nth-child(2) {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.footer-section:nth-child(2) h3 {
  margin-bottom: 0.5rem;
}

.social-links {
  display: inline-flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  align-items: center;
  justify-content: flex-end;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--bg);
  border-radius: 50%;
  transition: var(--transition);
  text-decoration: none;
}

.social-links a:hover {
  background-color: var(--brand-orange);
  transform: translateY(-2px);
  text-decoration: none;
}

.social-links svg {
  width: 20px;
  height: 20px;
  fill: var(--text);
  transition: var(--transition);
}

.social-links a:hover svg {
  fill: white;
}

.footer-legal {
  flex-basis: 100%;
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-top: 1rem;
  font-size: 0.85rem;
}

.footer-legal p {
  margin-bottom: 0.25rem;
  color: var(--muted);
}

.footer-legal a {
  margin: 0 var(--spacing-xs);
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: var(--transition);
}

.footer-legal a:hover {
  color: var(--brand-orange);
  text-decoration: underline;
}

#modify-cookie-choice {
  cursor: pointer;
}

/* ============================================
   Bannière Cookies
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--card);
  border-top: 2px solid var(--brand-orange);
  padding: var(--spacing-md);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 999;
  display: none;
}

.cookie-banner.active {
  display: block;
}

.cookie-banner-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.cookie-banner-text {
  flex: 1;
  min-width: 250px;
}

.cookie-banner-title {
  margin: 0 0 var(--spacing-sm) 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.cookie-banner-text p {
  margin: 0 0 var(--spacing-sm) 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text);
}

.cookie-banner-links {
  margin-top: var(--spacing-xs);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.cookie-banner-links a {
  font-size: 0.85rem;
  color: var(--brand-orange);
  text-decoration: underline;
  transition: var(--transition);
}

.cookie-banner-links a:hover {
  color: var(--brand-orange-2);
  text-decoration: none;
}

.cookie-banner-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn-cookie {
  padding: var(--spacing-xs) var(--spacing-md);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.btn-cookie-accept {
  background-color: var(--brand-orange);
  color: white;
}

.btn-cookie-accept:hover {
  background-color: var(--brand-orange-2);
}

.btn-cookie-refuse {
  background-color: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-cookie-refuse:hover {
  background-color: var(--bg);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  main {
    padding: var(--spacing-sm);
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .cookie-banner-content {
    flex-direction: column;
    align-items: stretch;
  }
  
  .cookie-banner-actions {
    width: 100%;
    justify-content: stretch;
  }
  
  .cookie-banner-actions .btn-cookie {
    flex: 1;
  }
  
  .hero-logo img {
    max-width: 250px;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  
  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }
  
  .lightbox-close {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }
  
  .cookie-banner-content {
    flex-direction: column;
    text-align: center;
  }
  
  /* Footer responsive */
  .footer-container {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
  }
  
  .footer-section:first-child,
  .footer-section:nth-child(2) {
    text-align: center;
    width: 100%;
    align-items: center;
  }
  
  .footer-section:nth-child(2) {
    align-items: center;
  }
  
  .social-links {
    margin-top: 0.75rem;
    justify-content: center;
  }
  
  /* Grille Contact en une colonne sur mobile */
  .footer-contact-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 var(--spacing-sm);
  }
  
  .hero {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
}

/* ============================================
   Utilitaires
   ============================================ */
.text-center {
  text-align: center;
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.hidden {
  display: none;
}