:root {
  --color-primary: #2c7be5;
  --color-primary-light: #58a6ff;
  --color-primary-dark: #1f6feb;
  --color-secondary: #6c757d;
  --color-success: #00d97e;
  --color-warning: #f6c343;
  --color-danger: #e63757;
  --color-light: #f9fafd;
  --color-dark: #12263f;
  --color-bg: #0D1117;
  --color-bg-alt: #161B22;
  --color-text-primary: #C9D1D9;
  --color-text-secondary: #8B949E;
  --color-accent: #58A6FF;
  --color-border: #30363d;
  --color-card-bg: #161B22;
  --color-card-shadow: rgba(0, 0, 0, 0.2);
  
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  
  --spacing-unit: 1rem;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

section.hero {
  position: relative;
  padding: 4rem 0 3rem;
  background: linear-gradient(to bottom, var(--color-bg) 0%, var(--color-bg) 30%, var(--color-bg-alt) 100%);
  overflow: hidden;
}

section.about {
  position: relative;
  padding: 3rem 0;
  background: linear-gradient(to bottom, var(--color-bg-alt) 0%, var(--color-bg) 50%);
  margin-top: -1.5rem;
  padding-top: 4rem;
  clip-path: polygon(0 1.5rem, 100% 0, 100% 100%, 0% 100%);
}

.about::before {
  content: '';
  position: absolute;
  top: -1rem;
  left: 0;
  right: 0;
  height: 2rem;
  background: var(--color-bg-alt);
  clip-path: ellipse(80% 100% at 50% 0%);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-unit);
  color: var(--color-accent);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

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

p {
  margin-bottom: var(--spacing-unit);
  color: var(--color-text-secondary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* Boutons */
.btn {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  position: relative;
  transition: all 0.3s ease;
  background-color: #1a5bbf;
}

.btn-primary:hover {
  background-color: #14499c;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26, 91, 191, 0.3);
  color: white;
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.btn-secondary:hover {
  background-color: rgba(88, 166, 255, 0.1);
  transform: translateY(-2px);
}

/* En-tête */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  padding: 0 var(--spacing-unit);
}

.logo a {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
}

.logo i {
  margin-right: 0.5rem;
  font-size: 1.8rem;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  color: var(--color-text-primary);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Section Hero */
.hero {
  padding: 8rem 0 4rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(13, 17, 23, 0.9) 0%, rgba(22, 27, 34, 0.9) 100%);
  position: relative;
  overflow: hidden;
}


.hero-content {
  flex: 1;
  padding-right: 2rem;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero .subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-image {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

.hero-image img:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

/* Section CTA */
.cta {
  padding: 6rem 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
}

.cta h2 {
  color: white;
  margin-bottom: 1rem;
}

.cta p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

.cta .btn {
  background-color: white;
  color: var(--color-primary);
  font-weight: 700;
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.cta .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Pied de page */
.footer {
  background-color: var(--color-bg-alt);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.contact-email {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.4;
}

.contact-email .email-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-section p,
.footer-section a {
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  display: block;
}

.footer-section a:hover {
  color: var(--color-accent);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-bg);
  color: var(--color-text-secondary);
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--color-accent);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* Menu mobile */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-text-primary);
  margin: 3px 0;
  transition: var(--transition);
}

/* Styles pour les tablettes */
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 7rem 0 4rem;
  }
  
  .hero-content {
    padding-right: 0;
    margin-bottom: 3rem;
  }
  
  .hero h1 {
    font-size: 2.8rem;
  }
  
  .cta-buttons {
    justify-content: center;
  }
}

/* Styles pour les mobiles */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: right 0.3s ease-in-out;
    z-index: 1000;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-links li {
    margin: 1rem 0;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .hero .subtitle {
    font-size: 1.1rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .btn {
    width: 100%;
  }
}

/* Styles pour la section des QR codes */
.qr-section {
  margin: 2rem 0;
  text-align: center;
}

.qr-title {
  color: var(--color-text-primary);
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.qr-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.qr-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem;
  margin: 0 auto;
  max-width: 800px;
}

.qr-item {
  text-align: center;
}

.qr-code {
  background: var(--color-card-bg);
  padding: 1.25rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  display: inline-block;
  margin: 0 auto;
  border: 1px solid var(--color-border);
}

.qr-label {
  margin: 0 0 1rem 0;
  font-weight: 600;
  color: var(--color-accent);
  font-size: 1.1rem;
}

.qr-image {
  width: 180px;
  height: 180px;
  display: block;
  margin: 0 auto;
  border-radius: 4px;
}

.qr-instruction {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .qr-container {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  .qr-code {
    width: 100%;
    max-width: 220px;
  }
  
  .qr-image {
    width: 100%;
    height: auto;
    max-width: 180px;
  }
}

/* Styles pour les notes et avertissements */
.note, .warning {
  padding: 1rem;
  margin: 1.5rem 0;
  border-radius: var(--border-radius);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  line-height: 1.5;
}

.note {
  background-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-warning);
}

.warning {
  background-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-danger);
}

.note img, .warning img {
  font-size: 1.2rem;
  margin-top: 0.2rem;
}

.note img {
  color: var(--color-warning);
}

.warning img {
  color: var(--color-danger);
}

/* Styles pour les cartes d'options */
.option-card {
  flex: 1;
  min-width: 300px;
  background: var(--color-card-bg);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.option-card h3 {
  color: var(--color-accent);
  margin-top: 0;
  margin-bottom: 1rem;
}

.option-card p {
  margin: 0.5rem 0;
}

.option-card a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

.option-card a:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

/* Styles pour les blocs d'information */
.info-block {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  padding: 1rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.info-block p {
  margin: 0;
}

/* Conteneur des options */
.options-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin: 2rem 0;
}

@media (max-width: 768px) {
  .options-container {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .option-card {
    min-width: 100%;
  }
}

/* Section Téléchargements */
.downloads {
  padding: 5rem 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-subtitle {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  margin-top: 1rem;
}

.download-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 4rem;
}

.download-card {
  background: var(--color-bg-alt);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  flex: 1;
  min-width: 280px;
  max-width: 350px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.download-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
  transition: var(--transition);
}

.download-card:hover .download-icon {
  color: var(--color-accent);
  transform: scale(1.1);
}

.download-card h3 {
  margin: 0 0 1.5rem 0;
  color: var(--color-accent);
  font-size: 1.25rem;
  font-weight: 600;
}

.store-badge {
  display: inline-block;
  margin: 0 auto 1rem;
  max-width: 200px;
  transition: var(--transition);
}

.store-badge:hover {
  transform: scale(1.03);
}

.store-badge img {
  width: 100%;
  height: auto;
  display: block;
}

.version-link {
  margin: 1rem 0 0;
}

.version-link a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
}

.version-link a:hover {
  color: var(--color-primary-light);
  text-decoration: underline;
}

/* Styles spécifiques pour la section QR code */
.downloads .qr-section {
  max-width: 800px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.downloads .qr-title {
  text-align: center;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.downloads .qr-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin: 0.5rem auto 2rem;
  font-size: 1.1rem;
  max-width: 600px;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .downloads {
    padding: 3rem 0;
  }
  
  .download-card {
    min-width: 100%;
  }
  
  .downloads .qr-section {
    padding-top: 1.5rem;
  }
}