:root {
    --primary-color: #2563eb;
    --success-color: #059669;
    --purple-color: #7c3aed;
    --background-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --radius-lg: 16px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
    margin: 0 auto;
    padding: 3rem 2rem 0rem 2rem;
    width: 100%;
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto; /* header / contenu centré / footer */
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
}

main {
    display: flex;
    flex-direction: column;
    justify-content: center; /* centre verticalement le carrousel dans l'espace entre header et footer */
}

.logo {
    margin-bottom: 1.5rem;
}

.logo i {
    font-size: 4rem;
    color: var(--primary-color);
    animation: fadeIn 0.6s ease;
}

header h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    animation: fadeIn 0.8s ease;
}

header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Apps Grid - Carrousel */
.apps-carousel-wrapper {
    position: relative;
    /* flex: 1; */
    margin-bottom: 2rem;
    overflow: hidden;
    padding: 0 150px;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}

.apps-grid {
    display: flex;
    gap: 2rem;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    align-items: flex-start;
    padding: 5px 50px;
    cursor: grab;
    user-select: none;
}

.apps-grid:active {
    cursor: grabbing;
}

.app-card {
    flex: 0 0 350px;
    min-width: 350px;
    max-width: 350px;
    height: 480px;
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Effet fade sur les cartes partiellement visibles */
.app-card.fade-left {
    pointer-events: none;
    position: relative;
    opacity: 0.5;
    filter: blur(1px);
}

.app-card.fade-right {
    pointer-events: none;
    position: relative;
    opacity: 0.5;
    filter: blur(1px);
}

/* Boutons de navigation carrousel */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    z-index: 10;
}

.carousel-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.carousel-nav:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.carousel-nav:hover i {
    color: white;
}

.carousel-nav i {
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.carousel-nav.prev {
    left: 30px;
}

.carousel-nav.next {
    right: 30px;
}

/* Indicateurs de pagination - cachés */
.carousel-indicators {
    display: none;
}

/* App Card */
.app-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: height 0.3s ease;
}

.app-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.app-card:hover::before {
    height: 100%;
    opacity: 0.05;
}

/* Card Colors */
.app-card-blue::before {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.app-card-blue:hover {
    border-color: #2563eb;
}

.app-card-green::before {
    background: linear-gradient(135deg, #059669, #047857);
}

.app-card-green:hover {
    border-color: #059669;
}

.app-card-purple::before {
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
}

.app-card-purple:hover {
    border-color: #7c3aed;
}

.app-card-orange::before {
    background: linear-gradient(135deg, #ea580c, #c2410c);
}

.app-card-orange:hover {
    border-color: #ea580c;
}

.app-card-teal::before {
    background: linear-gradient(135deg, #0d9488, #0f766e);
}

.app-card-teal:hover {
    border-color: #0d9488;
}

.app-card-red::before {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.app-card-red:hover {
    border-color: #dc2626;
}

.app-card-indigo::before {
    background: linear-gradient(135deg, #4f46e5, #4338ca);
}

.app-card-indigo:hover {
    border-color: #4f46e5;
}

/* App Header - Icon + Title */
.app-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

/* App Icon */
.app-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.app-card:hover .app-icon {
    transform: scale(1.1) rotate(-5deg);
}

.app-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    width: 100%;
}

.app-card-blue .app-icon {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.app-card-green .app-icon {
    background: linear-gradient(135deg, #059669, #047857);
}

.app-card-purple .app-icon {
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
}

.app-card-orange .app-icon {
    background: linear-gradient(135deg, #ea580c, #c2410c);
}

.app-card-teal .app-icon {
    background: linear-gradient(135deg, #0d9488, #0f766e);
}

.app-card-red .app-icon {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.app-card-indigo .app-icon {
    background: linear-gradient(135deg, #4f46e5, #4338ca);
}

.app-icon i {
    font-size: 2rem;
    color: white;
}

/* App Content */
.app-content {
    flex: 1;
    text-align: center;
}


.app-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.app-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

.app-features li {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.app-features i {
    font-size: 0.85rem;
    color: var(--success-color);
}

/* App Footer */
.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.app-badge {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.4rem 0.9rem;
    border-radius: 50px;
    background: var(--border-color);
    color: var(--text-secondary);
}

.app-card-blue .app-badge {
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
}

.app-card-green .app-badge {
    background: rgba(5, 150, 105, 0.1);
    color: #059669;
}

.app-card-purple .app-badge {
    background: rgba(124, 58, 237, 0.1);
    color: #7c3aed;
}

.app-card-orange .app-badge {
    background: rgba(234, 88, 12, 0.1);
    color: #ea580c;
}

.app-card-teal .app-badge {
    background: rgba(13, 148, 136, 0.1);
    color: #0d9488;
}

.app-card-red .app-badge {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
}

.app-card-indigo .app-badge {
    background: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
}

.app-footer i {
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.app-card:hover .app-footer i {
    transform: translateX(5px);
}

.app-card-blue:hover .app-footer i {
    color: #2563eb;
}

.app-card-green:hover .app-footer i {
    color: #059669;
}

.app-card-purple:hover .app-footer i {
    color: #7c3aed;
}

.app-card-orange:hover .app-footer i {
    color: #ea580c;
}

.app-card-teal:hover .app-footer i {
    color: #0d9488;
}

.app-card-red:hover .app-footer i {
    color: #dc2626;
}

.app-card-indigo:hover .app-footer i {
    color: #4f46e5;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    width: 100%;
    background: var(--background-color);
}

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

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }

    header {
        margin-bottom: 2rem;
    }

    header h1 {
        font-size: 2rem;
    }

    header p {
        font-size: 1rem;
    }

    .logo i {
        font-size: 3rem;
    }

    /* Carrousel mobile */
    .apps-carousel-wrapper {
        padding: 0 60px;
    }
    
    .app-card {
        flex: 0 0 280px;
        min-width: 280px;
        max-width: 280px;
    }

    .app-card {
        padding: 1.5rem;
    }

    .app-content h2 {
        font-size: 1.5rem;
    }

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

    .app-icon {
        width: 70px;
        height: 70px;
    }

    .app-icon i {
        font-size: 2rem;
    }

    /* Navigation carrousel mobile */
    .carousel-nav {
        width: 40px;
        height: 40px;
    }

    .carousel-nav i {
        font-size: 1rem;
    }

    .carousel-nav.prev {
        left: 5px;
    }

    .carousel-nav.next {
        right: 5px;
    }

    footer {
        padding: 1.5rem 1rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    /* Tablettes */
    .app-card {
        flex: 0 0 320px;
        min-width: 320px;
        max-width: 320px;
    }
}