/* ==========================================================================
   VTC VAN - Theme CSS Principal
   Identité visuelle : Bleu (#2563EB) / Blanc (#FFFFFF) / Orange (#F97316)
   Framework : Bootstrap 5
   ========================================================================== */

/* ========== Variables CSS ========== */
:root {
  /* Couleurs principales */
  --color-primary: #2563EB;
  --color-primary-dark: #1E40AF;
  --color-primary-light: #3B82F6;
  --color-secondary: #FFFFFF;
  --color-accent: #F97316;
  --color-accent-dark: #EA580C;
  --color-accent-light: #FB923C;
  
  /* Couleurs neutres */
  --color-text-primary: #1F2937;
  --color-text-secondary: #6B7280;
  --color-background: #FFFFFF;
  --color-background-alt: #F9FAFB;
  --color-border: #E5E7EB;
  
  /* Typographie */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 16px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Ombres */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 {
  font-size: 2.5rem;
  line-height: 1.1;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ========== Navigation ========== */
.navbar-custom {
  background-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-base);
}

.navbar-custom.scrolled {
  box-shadow: var(--shadow-lg);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary) !important;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.navbar-brand:hover {
  color: var(--color-primary-dark) !important;
}

.nav-link {
  color: var(--color-text-primary) !important;
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-xs) var(--spacing-sm) !important;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary) !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

.btn-nav-cta {
  background-color: var(--color-accent);
  color: var(--color-secondary) !important;
  padding: 0.625rem 1.5rem !important;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  border: none;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.btn-nav-cta:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ========== Hero Section ========== */
.hero-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-secondary);
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,101.3C1248,85,1344,75,1392,69.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom center;
  background-size: cover;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-secondary);
  font-size: 1rem;
}

.hero-feature-item i {
  color: var(--color-accent);
  font-size: 1.25rem;
}

/* ========== Buttons ========== */
.btn-primary-custom {
  background-color: var(--color-accent);
  color: var(--color-secondary);
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  font-size: 1.125rem;
  border: none;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-primary-custom:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
  color: var(--color-secondary);
}

.btn-secondary-custom {
  background-color: transparent;
  color: var(--color-secondary);
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  font-size: 1.125rem;
  border: 2px solid var(--color-secondary);
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-secondary-custom:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  transform: translateY(-3px);
}

.btn-outline-custom {
  background-color: transparent;
  color: var(--color-primary);
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  border: 2px solid var(--color-primary);
  transition: all var(--transition-base);
}

.btn-outline-custom:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ========== Widget de Réservation ========== */
.booking-widget {
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
  margin-top: calc(-1 * var(--spacing-2xl));
  position: relative;
  z-index: 10;
}

.booking-widget-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

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

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

.form-control-custom {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background-color: var(--color-background);
}

.form-control-custom:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control-custom::placeholder {
  color: var(--color-text-secondary);
}

/* ========== Sections ========== */
.section {
  padding: var(--spacing-2xl) 0;
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.section-bg-light {
  background-color: var(--color-background-alt);
}

.section-bg-primary {
  background-color: var(--color-primary);
  color: var(--color-secondary);
}

.section-bg-primary .section-title,
.section-bg-primary .section-subtitle {
  color: var(--color-secondary);
}

/* ========== Cards ========== */
.card-custom {
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  height: 100%;
  border: 1px solid var(--color-border);
}

.card-custom:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
  font-size: 1.75rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

/* ========== Cards Avantages VAN ========== */
.advantage-card {
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 2px solid transparent;
  height: 100%;
}

.advantage-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.advantage-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-secondary);
  font-size: 2rem;
  box-shadow: var(--shadow-md);
}

/* ========== Services Cards ========== */
.service-card {
  background-color: var(--color-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  height: 100%;
}

.service-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-5px);
}

.service-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-size: 3rem;
}

.service-content {
  padding: var(--spacing-lg);
}

.service-title {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.service-features {
  list-style: none;
  padding: 0;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.service-features li i {
  color: var(--color-accent);
  font-size: 0.875rem;
}

/* ========== Tarifs Cards ========== */
.pricing-card {
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 2px solid var(--color-border);
  height: 100%;
}

.pricing-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--color-accent);
  position: relative;
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background-color: var(--color-accent);
  color: var(--color-secondary);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-md);
}

.pricing-route {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.pricing-price {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.pricing-details {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

/* ========== Testimonials ========== */
.testimonial-card {
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  position: relative;
  height: 100%;
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.2;
  position: absolute;
  top: 20px;
  left: 20px;
}

.testimonial-content {
  position: relative;
  z-index: 1;
  padding-top: var(--spacing-md);
}

.testimonial-text {
  color: var(--color-text-secondary);
  font-style: italic;
  margin-bottom: var(--spacing-md);
  line-height: 1.75;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-md);
  border-top: 2px solid var(--color-border);
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-weight: var(--font-weight-bold);
  font-size: 1.25rem;
}

.testimonial-info h5 {
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}

.testimonial-info p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.testimonial-rating {
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

/* ========== FAQ Accordion ========== */
.accordion-custom .accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.accordion-custom .accordion-button {
  background-color: var(--color-secondary);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  padding: var(--spacing-md);
  border: none;
  font-size: 1.125rem;
}

.accordion-custom .accordion-button:not(.collapsed) {
  background-color: var(--color-background-alt);
  color: var(--color-primary);
  box-shadow: none;
}

.accordion-custom .accordion-button:focus {
  box-shadow: none;
  border-color: var(--color-primary);
}

.accordion-custom .accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232563EB'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-custom .accordion-body {
  padding: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

/* ========== Footer ========== */
.footer {
  background-color: var(--color-text-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-col h4 {
  color: var(--color-secondary);
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-col ul li a i {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

/* ========== Sticky Booking CTA (Mobile) ========== */
.sticky-booking-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-secondary);
  padding: var(--spacing-sm);
  box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
  z-index: 999;
  display: none;
  border-top: 2px solid var(--color-accent);
}

.sticky-booking-cta .btn-primary-custom {
  width: 100%;
  justify-content: center;
  font-size: 1rem;
  padding: 0.875rem;
}

@media (max-width: 768px) {
  .sticky-booking-cta {
    display: block;
  }
}

/* ========== Badge ========== */
.badge-custom {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

.badge-custom i {
  color: var(--color-accent);
}

/* ========== Stats Counter ========== */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
}

.stat-number {
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
}

/* ========== Contact Form ========== */
.contact-form {
  background-color: var(--color-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-background-alt);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.contact-info-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* ========== Responsive ========== */
@media (max-width: 1200px) {
  :root {
    --font-size-base: 15px;
  }
}

@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .booking-widget {
    margin-top: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
    --spacing-2xl: 3rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .hero-features {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 1.75rem;
  }
  
  .btn-primary-custom,
  .btn-secondary-custom {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
}

/* ========== Animations ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.pulse-animation {
  animation: pulse 2s ease-in-out infinite;
}

/* ========== Utilities ========== */
.text-primary-custom {
  color: var(--color-primary) !important;
}

.text-accent-custom {
  color: var(--color-accent) !important;
}

.bg-primary-custom {
  background-color: var(--color-primary) !important;
}

.bg-accent-custom {
  background-color: var(--color-accent) !important;
}

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

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

/* ========== Print Styles ========== */
@media print {
  .navbar-custom,
  .sticky-booking-cta,
  .footer {
    display: none;
  }
}