* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

/* Écran de chargement */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e2024, #23272b);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease-out;
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid transparent;
    border-top-color: #ff4088;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

body {
    background: linear-gradient(135deg, #1e2024, #23272b);
    min-height: 100vh;
    color: white;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

.app-container.loaded {
    opacity: 1;
}

.welcome-text {
    text-align: center;
    margin: 30px 0;
}

.welcome-text h1 {
    font-size: 2.5em;
    font-weight: 600;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #ff4088, #fc7d7d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 10px rgba(255, 64, 136, 0.3);
}

.welcome-text p {
    color: #a0a0a0;
    font-size: 1.1em;
}

.ad-slider {
    width: 100%;
    max-width: 800px;
    margin: 0 auto 40px auto;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.slider-container {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide {
    min-width: 100%;
    transition: opacity 0.3s ease;
}

.slide img {
    width: 100%;
    height: auto;
    display: block;
}

.slider-arrows {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    transform: translateY(-50%);
}

.arrow {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 10px 15px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.arrow:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.main-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    padding: 20px;
}

.menu-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.menu-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.menu-item i {
    font-size: 2em;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #ff4088, #fc7d7d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: transform 0.3s ease;
}

.menu-item:hover i {
    transform: scale(1.1);
}

.menu-item span {
    display: block;
    color: white;
    font-size: 1.1em;
}

@media (max-width: 480px) {
    .ad-slider {
        margin-bottom: 30px;
        border-radius: 10px;
    }
    
    .welcome-text {
        margin-bottom: 30px;
    }

    .welcome-text h1 {
        font-size: 2em;
    }

    .menu-item {
        padding: 15px;
    }

    .slider-arrows {
        padding: 0 10px;
    }

    .arrow {
        padding: 8px 12px;
    }
}