:root {
  /* Couleurs */
  --fx-color-fond: #f8f8f8;
  --fx-color-surface: #e0e0e0;
  --fx-color-texte: #1a1a1a;
  --fx-color-texte-secondaire: #666666;
  --fx-color-accent: #0066ff;
  --fx-color-accent-2: #2e8b57;
  --fx-color-contraste: #ffffff;
  --fx-color-bordure: #cccccc;

  /* Typographie */
  --fx-font-display: "Space Mono", monospace;
  --fx-font-body: "IBM Plex Sans", sans-serif;
  --fx-font-accent: "Courier Prime", monospace;

  /* Espacements */
  --fx-spacing-xs: 0.5rem;
  --fx-spacing-s: 1rem;
  --fx-spacing-m: 2rem;
  --fx-spacing-l: 3rem;
  --fx-spacing-xl: 4rem;
  --fx-spacing-xxl: 6rem;

  /* Tailles de texte */
  --fx-text-xs: 0.75rem;
  --fx-text-s: 0.875rem;
  --fx-text-m: 1rem;
  --fx-text-l: 1.25rem;
  --fx-text-xl: 1.5rem;
  --fx-text-xxl: 2rem;
  --fx-text-display-s: 2.5rem;
  --fx-text-display-m: 3rem;
  --fx-text-display-l: 4rem;
  --fx-text-display-xl: 5rem;

  /* Ombres et effets */
  --fx-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  --fx-shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.1);
  --fx-border-radius: 0;

  /* Transitions */
  --fx-transition: all 0.3s ease;
}

/* Reset et base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--fx-font-body);
  color: var(--fx-color-texte);
  background-color: var(--fx-color-fond);
  line-height: 1.5;
  overflow-x: hidden;
}

/* Typographie */
h1, h2, h3, h4 {
  font-family: var(--fx-font-display);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--fx-spacing-m);
}

h1 {
  font-size: var(--fx-text-display-l);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

h2 {
  font-size: var(--fx-text-display-m);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

h3 {
  font-size: var(--fx-text-display-s);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

p {
  font-size: var(--fx-text-m);
  margin-bottom: var(--fx-spacing-m);
}

a {
  color: var(--fx-color-accent);
  text-decoration: none;
  transition: var(--fx-transition);
}

a:hover {
  color: var(--fx-color-texte);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--fx-spacing-m);
}

.section {
  padding: var(--fx-spacing-xxl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--fx-spacing-xl);
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 4rem;
  height: 2px;
  background-color: var(--fx-color-accent);
  margin: var(--fx-spacing-s) auto;
}

/* Boutons */
.btn {
  display: inline-block;
  padding: var(--fx-spacing-s) var(--fx-spacing-l);
  background-color: var(--fx-color-accent);
  color: var(--fx-color-contraste);
  font-family: var(--fx-font-display);
  font-size: var(--fx-text-s);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: var(--fx-transition);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--fx-transition);
}

.btn:hover {
  background-color: var(--fx-color-texte);
  transform: translateY(-2px);
}

.btn:hover::before {
  left: 100%;
}

.btn-secondary {
  background-color: var(--fx-color-accent-2);
  color: var(--fx-color-contraste);
}

.btn-secondary:hover {
  background-color: #256a44; /* Version assombrie du vert */
  color: var(--fx-color-contraste);
}

.btn-secondary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Motifs géométriques */
.motif-piste {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1;
  opacity: 0.1;
  pointer-events: none;
}

/* Cartes */
.service-card, .velo-card {
  background-color: var(--fx-color-contraste);
  border: 1px solid var(--fx-color-bordure);
  padding: var(--fx-spacing-l);
  position: relative;
  transition: var(--fx-transition);
  box-shadow: var(--fx-shadow);
}

.service-card:hover, .velo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.service-card-visual, .velo-card-visual {
  margin-bottom: var(--fx-spacing-m);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 120px;
}

.service-card-visual, .velo-card-visual {
  margin-bottom: var(--fx-spacing-m);
  display: flex;
  justify-content: center;
  align-items: center;
}

.service-price, .velo-price {
  font-family: var(--fx-font-accent);
  font-size: var(--fx-text-m);
  color: var(--fx-color-accent);
  margin: var(--fx-spacing-s) 0;
}

/* Focus styles */
.btn:focus, input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--fx-color-accent);
  outline-offset: 2px;
}

/* Menu mobile */
.nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--fx-spacing-s);
  position: fixed;
  top: 80px;
  left: -100%;
  width: 100%;
  background-color: var(--fx-color-fond);
  padding: var(--fx-spacing-l);
  transition: var(--fx-transition);
  z-index: 100;
}

.nav-links.active {
  left: 0;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    display: none;
  }
  .nav-links.active {
    display: flex;
  }
}

/* Sections */
.section {
  position: relative;
  overflow: hidden;
}

.hero {
  background: linear-gradient(135deg, var(--fx-color-fond), var(--fx-color-surface));
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-title {
  font-size: var(--fx-text-display-xl);
  margin-bottom: var(--fx-spacing-l);
  line-height: 1.1;
}

.hero-title-rayon {
  display: block;
  font-size: var(--fx-text-display-m);
}

.hero-title-vert {
  display: block;
  color: var(--fx-color-accent-2);
  font-size: var(--fx-text-display-l);
}

/* Hiérarchie des titres */
h1 {
  font-size: var(--fx-text-display-l);
  letter-spacing: 0.05em;
}

h2 {
  font-size: var(--fx-text-display-m);
  letter-spacing: 0.05em;
}

h3 {
  font-size: var(--fx-text-display-s);
  letter-spacing: 0.05em;
  color: var(--fx-color-accent);
}

.atelier-grid, .services-grid, .contact-grid {
  display: grid;
  gap: var(--fx-spacing-xl);
}

@media (min-width: 768px) {
  .atelier-grid, .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.velos-carousel {
  display: flex;
  gap: var(--fx-spacing-m);
  overflow-x: auto;
  padding-bottom: var(--fx-spacing-m);
}

.velo-card {
  min-width: 250px;
}

.footer {
  background-color: var(--fx-color-texte);
  color: var(--fx-color-contraste);
  padding: var(--fx-spacing-xl) 0;
  position: relative;
}

.footer-links {
  display: flex;
  gap: var(--fx-spacing-l);
  justify-content: center;
  margin-bottom: var(--fx-spacing-m);
}

.footer-links span {
  color: var(--fx-color-contraste);
  opacity: 0.8;
  font-size: var(--fx-text-s);
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M0 50 L20 30 L40 50 L60 30 L80 50 L100 30' stroke='%23ffffff' stroke-width='1' fill='none' opacity='0.1'/%3E%3C/svg%3E");
  opacity: 0.1;
  pointer-events: none;
}

/* Formulaires */
form {
  display: grid;
  gap: var(--fx-spacing-m);
  max-width: 600px;
  margin: 0 auto;
}

label {
  font-family: var(--fx-font-accent);
  font-size: var(--fx-text-s);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input, textarea, select {
  width: 100%;
  padding: var(--fx-spacing-s);
  border: 1px solid var(--fx-color-bordure);
  font-family: var(--fx-font-body);
  font-size: var(--fx-text-m);
  background-color: var(--fx-color-contraste);
  transition: var(--fx-transition);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--fx-color-accent);
}

/* Accessibilité */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--fx-color-texte);
  color: var(--fx-color-contraste);
  padding: var(--fx-spacing-s);
  z-index: 100;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}