/* Styles pour la page d'accueil */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --accent-color: #ffc107;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* Styles de la barre de navigation */
.navbar {
    background: rgba(13, 110, 253, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    color: white !important;
}

.navbar-brand i {
    margin-right: 0.5rem;
}

.btn-outline-light {
    border-width: 2px;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
}

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

.btn-light {
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
    color: var(--primary-color);
}

.btn-light:hover {
    background-color: #e9ecef;
    color: var(--primary-color);
    transform: translateY(-2px);
}

.welcome-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    text-align: center;
    padding-top: 5rem; /* Ajouter de l'espace pour la navbar fixe */
}

.welcome-content {
    max-width: 800px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

.welcome-title {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.welcome-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    background: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: calc(var(--delay) * 0.2s);
}

.feature-card:hover {
    transform: translateY(-5px);
}

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

.feature-title {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

.buttons-container {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 1s;
}

.btn-welcome {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-welcome::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.btn-welcome:hover::before {
    transform: translateX(0);
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    color: white;
}

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

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

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

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

/* Animation pour les cartes */
.feature-card:nth-child(1) { --delay: 1; }
.feature-card:nth-child(2) { --delay: 2; }
.feature-card:nth-child(3) { --delay: 3; }
.feature-card:nth-child(4) { --delay: 4; }

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 1rem;
    }

    .welcome-title {
        font-size: 2.5rem;
    }

    .welcome-subtitle {
        font-size: 1.2rem;
    }

    .btn-outline-light,
    .btn-light {
        padding: 0.4rem 1rem;
        font-size: 0.9rem;
    }
}