/* ===================================
   LexMusica Store - Styles CSS
   =================================== */

/* Variables CSS */
:root {
  /* Palette 60-30-10 - Inspiration Musicale Congolaise */
  
  /* 60% - Couleur Principale : Bleu Nuit Congolais */
  --primary-color: #1a237e;
  --primary-light: #3949ab;
  --primary-dark: #000051;
  
  /* 30% - Couleur Secondaire : Or Soleil */
  --secondary-color: #ffc107;
  --secondary-light: #fff350;
  --secondary-dark: #c79100;
  
  /* 10% - Couleur d'Accent : Rouge Passion */
  --accent-color: #d32f2f;
  --accent-light: #ff6659;
  --accent-dark: #9a0007;
  
  /* Couleurs Neutres Complémentaires */
  --background-color: #f5f5f5;
  --surface-color: #ffffff;
  --text-primary: #212121;
  --text-secondary: #757575;
  --white: #FFFFFF;
  --black: #000000;
  
  /* Dégradés */
  --gradient-primary: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
  --gradient-vibrant: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
  
  /* Anciennes variables pour compatibilité */
  --primary-blue: var(--primary-color);
  --primary-orange: var(--accent-color);
  --primary-gold: var(--secondary-color);
  --dark-blue: var(--primary-dark);
  --light-blue: var(--primary-light);
  --dark-orange: var(--accent-dark);
  --light-orange: #FFF3E0;
  --dark-gold: var(--secondary-dark);
  --light-gold: #FFECB3;
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #EEEEEE;
  --gray-300: #E0E0E0;
  --gray-400: #BDBDBD;
  --gray-500: #9E9E9E;
  --gray-600: var(--text-secondary);
  --gray-700: #616161;
  --gray-800: var(--text-primary);
  --gray-900: #212121;
  
  /* Espacements */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Bordures */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-full: 9999px;
  
  /* 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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
  color: var(--gray-600);
}

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

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

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius-lg);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--gradient-secondary);
}

.btn-secondary {
  background: var(--surface-color);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

/* Gradients */
.text-gradient {
  background: var(--gradient-vibrant);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-hero {
  background: linear-gradient(135deg, 
    var(--white) 0%, 
    var(--accent-color) 50%, 
    var(--secondary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  animation: shimmer 3s ease-in-out infinite alternate;
}

@keyframes shimmer {
  0% {
    filter: brightness(1) saturate(1);
  }
  50% {
    filter: brightness(1.2) saturate(1.2);
  }
  100% {
    filter: brightness(1.1) saturate(1.1);
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.navbar {
  padding: var(--spacing-md) 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo {
  height: 40px;
  width: auto;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-800);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  color: var(--gray-600);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-blue);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-secondary);
  transition: all var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
  padding: 120px 0 var(--spacing-3xl);
  background: var(--gradient-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--secondary-color);
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-2xl);
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--gray-600);
}

.hero-image {
  position: relative;
}

.phone-mockup {
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}

.mockup-img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-2xl);
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.floating-icon {
  position: absolute;
  width: 60px;
  height: 60px;
  background: var(--white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-blue);
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

.floating-icon.music-note {
  top: 10%;
  left: 10%;
  background: var(--primary-gold);
  color: var(--white);
  animation-delay: 0s;
}

.floating-icon.vote {
  top: 30%;
  right: 10%;
  background: var(--primary-orange);
  color: var(--white);
  animation-delay: 1s;
}

.floating-icon.heart {
  bottom: 20%;
  left: 5%;
  background: var(--primary-blue);
  color: var(--white);
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* Sections communes */
section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Présentation Section */
.presentation {
  background: var(--surface-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--surface-color);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  text-align: center;
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-vibrant);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 2rem;
  color: var(--white);
}

.feature-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Galerie Section */
.galerie {
  background: var(--surface-color);
}

.screenshots-carousel {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.screenshot-item {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.screenshot-item.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.screenshot-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  background: var(--gray-50);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
}

.screenshot-img {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
  display: block;
}

.screenshot-info h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--gray-800);
}

.screenshot-info p {
  margin-bottom: var(--spacing-lg);
  color: var(--gray-600);
}

.screenshot-details {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.screenshot-details span {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary-blue);
  font-size: 0.9rem;
}

.carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.carousel-btn {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-full);
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 1.2rem;
}

.carousel-btn:hover {
  background: var(--dark-blue);
  transform: scale(1.1);
}

.carousel-dots {
  display: flex;
  gap: var(--spacing-sm);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: var(--border-radius-full);
  background: var(--gray-300);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.dot.active {
  background: var(--primary-blue);
  transform: scale(1.2);
}

/* Téléchargement Section */
.telechargement {
  background: var(--gradient-secondary);
}

.download-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.download-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.download-card {
  background: var(--surface-color);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.download-icon {
  width: 100px;
  height: 100px;
  background: var(--gradient-accent);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 3rem;
  color: var(--white);
}

.download-card h3 {
  font-size: 1.8rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.download-card p {
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

.download-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.download-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  color: var(--gray-600);
}

.download-features i {
  color: var(--primary-green);
}

.download-btn {
  width: 100%;
  justify-content: center;
  font-size: 1.1rem;
  padding: var(--spacing-lg) var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.download-info-text {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.installation-guide {
  background: var(--white);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
}

.installation-guide h4 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.step {
  display: flex;
  gap: var(--spacing-lg);
  align-items: start;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  color: var(--white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
}

.step-content h5 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--gray-800);
}

.step-content p {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 0;
}

.download-visual {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.qr-code {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.qr-img {
  width: 200px;
  height: 200px;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-lg);
}

.qr-code p {
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 0;
}

.system-requirements {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
}

.system-requirements h4 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.system-requirements ul {
  list-style: none;
}

.system-requirements li {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.9rem;
}

.system-requirements li:last-child {
  border-bottom: none;
}

.payment-methods {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  margin-top: var(--spacing-lg);
}

.payment-methods h4 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.payment-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
}

.payment-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all var(--transition-normal);
}

.payment-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

.countdown-section {
  background: var(--white);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
  margin-top: var(--spacing-2xl);
}

.countdown-section h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-800);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.countdown {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
}

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

.countdown-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  background: var(--gray-50);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  min-width: 80px;
}

.countdown-label {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-top: var(--spacing-sm);
}

/* FAQ Section */
.faq {
  background: var(--background-color);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  padding: var(--spacing-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--white);
  transition: background var(--transition-normal);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question h3 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--gray-800);
  margin-bottom: 0;
}

.faq-question i {
  color: var(--primary-blue);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
  padding: var(--spacing-lg);
  max-height: 500px;
}

.faq-answer p {
  color: var(--gray-600);
  margin-bottom: 0;
}

/* Contact Section */
.contact {
  background: var(--surface-color);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item {
  display: flex;
  gap: var(--spacing-lg);
  align-items: start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.contact-details p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.social-links h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.social-icons {
  display: flex;
  gap: var(--spacing-md);
}

.social-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: var(--white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.social-icon:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.contact-form {
  background: var(--background-color);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
}

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group textarea {
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
}

/* Footer */
.footer {
  background: var(--primary-dark);
  color: var(--white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-logo {
  height: 40px;
  width: auto;
}

.footer-brand h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
  color: var(--white);
}

.footer-brand p {
  color: var(--gray-400);
  margin-bottom: 0;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-section h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  color: var(--white);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--gray-400);
  transition: color var(--transition-normal);
}

.footer-links a:hover {
  color: var(--primary-blue);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--gray-700);
}

.footer-copyright p {
  color: var(--gray-400);
  margin-bottom: 0;
}

.footer-payment p {
  color: var(--gray-400);
  margin-bottom: var(--spacing-sm);
}

.payment-icons {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--gray-400);
}

.payment-icons i {
  font-size: 1.5rem;
}

.payment-icons span {
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .screenshot-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .download-content {
    grid-template-columns: 1fr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .nav-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--surface-color);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
  }
  
  .nav-menu.active {
    display: flex;
    transform: translateY(0);
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero {
    padding: 100px 0 var(--spacing-2xl);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .countdown {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }
  
  .countdown-number {
    min-width: 60px;
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.5rem; }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
  }
  
  .carousel-controls {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .carousel-dots {
    order: -1;
  }
}

/* Animations et transitions */
.fade-in {
  animation: fadeIn 0.6s ease-in-out;
}

.slide-up {
  animation: slideUp 0.6s ease-in-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Scrollbar personnalisée */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-blue);
  border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dark-blue);
}

/* Notifications */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  max-width: 400px;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transform: translateX(100%);
  opacity: 0;
  transition: all 0.3s ease-in-out;
}

.notification.show {
  transform: translateX(0);
  opacity: 1;
}

.notification.success {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
  border-left: 4px solid #2E7D32;
}

.notification.error {
  background: linear-gradient(135deg, #f44336, #da190b);
  color: white;
  border-left: 4px solid #c62828;
}

.notification i {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.notification span {
  flex: 1;
  font-weight: 500;
}

.notification .close-btn {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-sm);
  transition: background-color 0.2s ease;
  flex-shrink: 0;
}

.notification .close-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Responsive pour les notifications */
@media (max-width: 768px) {
  .notification {
    top: 10px;
    right: 10px;
    left: 10px;
    max-width: none;
  }
}