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

:root {
    /* Couleurs inspirées de l'app (dark theme) */
    --primary: #4CAF50;
    --primary-dark: #388E3C;
    --secondary: #FF9800;
    --accent: #2196F3;

    /* Dark theme colors from app */
    --dark-bg: #1E1E1E;
    --dark-surface: #2D2D2D;
    --dark-card: #3A3A3A;

    /* Pastel colors from app buttons */
    --pastel-orange: #FFB74D;
    --pastel-purple: #B39DDB;
    --pastel-blue: #81D4FA;
    --pastel-cyan: #4DD0E1;
    --pastel-green: #C8E6C9;

    --background: #3A3A3A;
    --surface: #424242;
    --text-primary: #424242;
    --text-secondary: #FFFFFF;
    --divider: #BDBDBD;
    --error: #F44336;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    --gradient-hero: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-secondary);
    background-color: var(--surface);
}

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

/* Header */
header {
    background: #303030;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 24px;
    font-weight: 700;
    color: #e0e0e0;
}

.logo .icon {
    font-size: 32px;
}

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

.nav-links a {
    text-decoration: none;
    color: #e0e0e0;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Buttons */
.btn-primary {
    background: var(--gradient-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    background: var(--gradient-hero);
    padding: var(--spacing-xl) 0;
}

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

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-download:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.btn-download .icon {
    width: 50px;
    height: 50px;
}

.icon-android {
    color: #3DDC84;
    background-image: url("android.png");
    background-size: contain;
}

.icon-windows {
    color: #0078D7;
    background-image: url("windows.png");
    background-size: contain;
}

.btn-download span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-download small {
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-download strong {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Carousel */
.carousel {
    position: relative;
    width: 350px;
    max-width: 500px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.carousel-slide {
    display: none;
    width: 100%;
    animation: fadeIn 0.5s ease-in-out;
}

.carousel-slide.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.carousel-slide img {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: contain;
    display: block;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn svg {
    color: var(--text-primary);
}

.carousel-prev {
    left: -60px;
}

.carousel-next {
    right: -60px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: var(--spacing-md);
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
}

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

.carousel-dot:hover {
    transform: scale(1.3);
}

/* App Screenshot */
.app-screenshot {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    border-radius: var(--radius-lg);
    margin: 0 auto;
    display: block;
    object-fit: contain;
}

/* Features Section */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--background);
}

.features h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--surface);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 80px;
    height: 80px;
    font-size: 48px;
    margin: 0 auto var(--spacing-sm);
}

/* Feature icons using sprite image */
.feature-icon-sprite {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    background-image: url('app-icons-sprite.png');
    background-size: 980% 800%; /* 8 icons horizontally */
    background-repeat: no-repeat;
    border-radius: var(--radius-md);
}

/* Individual icon positions (0-7) */
.feature-icon-bottle { background-position: 5% -159px; }      /* 🍼 Biberon */
.feature-icon-diaper { background-position: 17.65% -159px; }  /* 🚼 Couche */
.feature-icon-sleep { background-position: 30.35% -159px; }   /* 💤 Sommeil */
.feature-icon-toys { background-position: 43% -159px; }    /* 🎲 Activités */
.feature-icon-eye { background-position: 57.12% -159px; }     /* 👁️ Suivi visuel */
.feature-icon-bottle2 { background-position: 71.4% -159px; }  /* 🍾 Biberon 2 */
.feature-icon-health { background-position: 81.35% -159px; }  /* ➕ Santé */
.feature-icon-camera { background-position: 94% -159px; }    /* 📷 Photos */
.feature-icon-growth { background-position: 55.85% -159px; }   /* 📏 Croissance */
.feature-icon-breastpump { background-position: 68.6% -159px; } /* 🤱 Tire-lait */

.feature-icon-family {
    background-image: url('family_restroom.png');
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}   /* 👨‍👩‍👧‍👦 Partage familial */
.feature-icon-lock {
    background-image: url('safety_check.png');
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}   /* 🔒 Sécurisé */
.feature-icon-cloud {
    background-image: url('cloud_done.png');
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
}   /* ☁️ Synchronisation */

.feature-card h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

.section-divider {
    padding: 10px 0;
    border: none;
    border-top: 1px solid var(--divider);
    margin: var(--spacing-xl) 0;
}

/* Benefits Section */
.benefits {
    padding: var(--spacing-xl) 0;
    background: var(--gradient-hero);
}

.benefits h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.benefit {
    background: var(--surface);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.benefit-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--pastel-green);
    margin-bottom: var(--spacing-sm);
}

.benefit h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-xs);
}

.benefit p {
    color: var(--text-secondary);
}

/* Download Section */
.download {
    padding: var(--spacing-xl) 0;
    background: var(--background);
}

.download h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: var(--spacing-sm);
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

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

.platform-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.download-card h3 {
    font-size: 24px;
    margin-bottom: var(--spacing-xs);
}

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

.btn-download-main {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-download-main:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-download-main small {
    font-size: 12px;
    font-weight: 400;
    opacity: 0.9;
}

.download-size {
    margin-top: var(--spacing-sm);
    font-size: 14px;
    color: var(--text-secondary);
}

/* Changelog */
.changelog {
    background: var(--background);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-xl);
}

.changelog h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.changelog ul {
    list-style: none;
}

.changelog li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.changelog li::before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Footer */
footer {
    background: var(--gradient-hero);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.footer-section p,
.footer-section a {
    color: var(--surface);
    text-decoration: none;
    display: block;
    margin: var(--spacing-xs) 0;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-sm);
    text-align: center;
    color: var(--text-primary);
}

.footer-bottom a {
    color: var(--primary);
    text-decoration: none;
}
.footer-bottom a:hover {
    color: var(--primary-dark);
}

/* Responsive */
@media (max-width: 968px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero-content {
        text-align: center;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        justify-content: center;
        gap: var(--spacing-sm);
    }

    .hero-image {
        order: -1;
        margin-bottom: 0;
    }

    .carousel {
        width: 100%;
        max-width: 400px;
    }

    .app-screenshot {
        max-height: 450px;
    }

    .carousel-prev {
        left: 10px;
    }

    .carousel-next {
        right: 10px;
    }

    .features h2,
    .benefits h2,
    .download h2 {
        font-size: 32px;
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-sm);
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .download-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 640px) {
    .logo .title {
        font-size: 18px;
    }

    .logo .icon {
        font-size: 24px;
    }

    .nav-links {
        gap: var(--spacing-xs);
    }

    .nav-links a:not(.btn-primary) {
        display: none;
    }

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

    .hero .container {
        gap: var(--spacing-md);
    }

    .hero-content h1 {
        font-size: 24px;
        margin-bottom: var(--spacing-xs);
    }

    .hero-subtitle {
        font-size: 15px;
        margin-bottom: var(--spacing-md);
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-xs);
    }

    .btn-download {
        width: 100%;
        justify-content: center;
        padding: 10px var(--spacing-sm);
        font-size: 14px;
    }

    .btn-download .icon {
        width: 35px;
        height: 35px;
    }

    .btn-download small {
        font-size: 11px;
    }

    .btn-download strong {
        font-size: 14px;
    }

    .carousel {
        width: 100%;
        max-width: 250px;
    }

    .app-screenshot {
        max-height: 400px;
    }

    .carousel-prev,
    .carousel-next {
        width: 36px;
        height: 36px;
    }

    .carousel-prev {
        left: 5px;
    }

    .carousel-next {
        right: 5px;
    }

    .carousel-btn svg {
        width: 18px;
        height: 18px;
    }

    .carousel-dots {
        margin-top: var(--spacing-sm);
    }

    .carousel-dot {
        width: 10px;
        height: 10px;
    }

    .carousel-btn svg {
        width: 20px;
        height: 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: var(--spacing-sm);
    }

    .benefit {
        padding: var(--spacing-sm);
    }

    .download-card {
        padding: var(--spacing-md);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

.logo-img {
    width: 70px;
    padding: 10px;
}

/* Conteneur principal */
.windows-installation-guide {
  /*background: linear-gradient(135deg, #fff3cd 0%, #fffaec 100%);*/
  border: 2px solid var(--primary);
  border-radius: 12px;
  padding: 24px;
  margin-top: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Titre */
.windows-installation-guide h4 {
  margin: 0 0 12px 0;
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Paragraphe d'introduction */
.windows-installation-guide > p {
  margin: 0 0 16px 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

/* Liste ordonnée des étapes */
.windows-installation-guide ol {
  margin: 0 0 16px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}

.windows-installation-guide ol li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.5;
}

.windows-installation-guide ol li strong {
  color: var(--primary);
  font-weight: 600;
}

/* Note explicative en bas */
.windows-installation-guide .note {
  margin: 0;
  padding: 12px 16px;
  border-left: 4px solid #0078D7;
  border-radius: 4px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive pour mobile */
@media (max-width: 768px) {
  .windows-installation-guide {
    padding: 20px 16px;
  }
  
  .windows-installation-guide h4 {
    font-size: 16px;
  }
  
  .windows-installation-guide > p,
  .windows-installation-guide ol li {
    font-size: 14px;
  }
  
  .windows-installation-guide .note {
    font-size: 13px;
  }
}

/* Animation au survol (optionnel) */
.windows-installation-guide {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.windows-installation-guide:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.windows-installation-guide li {
    list-style: none;
}

/* Conteneur principal Android */
.android-installation-guide {
  border: 2px solid var(--primary);
  border-radius: 12px;
  padding: 24px;
  margin-top: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Titre */
.android-installation-guide h4 {
  margin: 0 0 12px 0;
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Paragraphe d'introduction */
.android-installation-guide > p {
  margin: 0 0 16px 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

/* Liste ordonnée des étapes */
.android-installation-guide ol {
  margin: 0 0 16px 0;
  padding-left: 24px;
  color: var(--text-secondary);
}

.android-installation-guide ol li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.5;
  list-style: none;
}

.android-installation-guide ol li strong {
  color: var(--primary);
  font-weight: 600;
}

/* Note explicative en bas */
.android-installation-guide .note {
  margin: 0;
  padding: 12px 16px;
  border-left: 4px solid #92BA3A;
  border-radius: 4px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive pour mobile */
@media (max-width: 768px) {
  .android-installation-guide {
    padding: 20px 16px;
  }
  
  .android-installation-guide h4 {
    font-size: 16px;
  }
  
  .android-installation-guide > p,
  .android-installation-guide ol li {
    font-size: 14px;
  }
  
  .android-installation-guide .note {
    font-size: 13px;
  }
}

/* Animation au survol (optionnel) */
.android-installation-guide {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.android-installation-guide:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}