/* Preloader professionnel */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #070707 0%, #1a1a1a 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

/* Logo animé */
.preloader-logo {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
}

.logo-circle {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid transparent;
}

.logo-circle-1 {
    border-top: 3px solid #5271FF;
    border-right: 3px solid #5271FF;
    animation: spin 1.5s linear infinite;
}

.logo-circle-2 {
    border-bottom: 3px solid #ff66c4;
    border-left: 3px solid #ff66c4;
    animation: spinReverse 2s linear infinite;
}

.logo-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: bold;
    color: #fff;
}

.logo-inner span:nth-child(5) {
    color: #5271FF;
    font-size: 14px !important;
}

.logo-inner span:nth-child(3) {
    color: #ff66c4;
}

.logo-inner span:nth-child(4) {
    color: #ff66c4;
}

/* Barre de progression */
.preloader-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin: 20px auto;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #5271FF, #ff66c4);
    border-radius: 10px;
    animation: loading 2s ease-in-out infinite;
}

/* Texte de chargement */
.preloader-text {
    color: #fff;
    font-size: 14px;
    margin-top: 15px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.preloader-text .dot {
    display: inline-block;
    animation: dots 1.5s infinite;
}

.preloader-text .dot:nth-child(2) {
    animation-delay: 0.2s;
}

.preloader-text .dot:nth-child(3) {
    animation-delay: 0.4s;
}

/* Animations */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes spinReverse {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(-360deg);
    }
}

@keyframes loading {
    0% {
        width: 0%;
        left: 0;
    }
    50% {
        width: 100%;
        left: 0;
    }
    100% {
        width: 0%;
        left: 100%;
    }
}

@keyframes dots {
    0%, 20% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

/* Version mobile */
@media (max-width: 768px) {
    .preloader-logo {
        width: 70px;
        height: 70px;
    }
    
    .logo-inner {
        font-size: 18px;
    }
    
    .preloader-progress {
        width: 150px;
    }
}