/* ===== Loader ===== */
    #page-loader {
        position: fixed;
        width: 100%;
        height: 100vh;
        background: #ffffff;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 999999;
        transition: opacity 0.6s ease, visibility 0.6s ease;
    }

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

    .loader-logo {
        width: 120px;
        animation: spin 2s linear infinite;
    }

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

    /* Quand la page est chargée */
    #page-loader.fade-out {
        opacity: 0;
        visibility: hidden;
    }

    /* Loader Screen */
    #page-loader {
        position: fixed;
        width: 100%;
        height: 100vh;
        background: #01313c;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 999999;
        transition: opacity 0.6s ease, visibility 0.6s ease;
    }

    #page-loader.hidden {
        opacity: 0;
        visibility: hidden;
    }

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

    .loader-logo {
        width: 150px;
        height: 150px;
        animation: rotate3D 2s infinite linear;
        transform-style: preserve-3d;
        filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3));
    }

    @keyframes rotate3D {
        0% {
            transform: rotateY(0deg) rotateX(0deg);
        }
        50% {
            transform: rotateY(180deg) rotateX(10deg);
        }
        100% {
            transform: rotateY(360deg) rotateX(0deg);
        }
    }

    .loader-text {
        margin-top: 30px;
        color: #ffffff;
        font-size: 18px;
        font-weight: 300;
        letter-spacing: 2px;
        animation: pulse 1.5s infinite ease-in-out;
    }

    @keyframes pulse {
        0%, 100% {
            opacity: 0.6;
        }
        50% {
            opacity: 1;
        }
    }

    .loader-spinner {
        margin-top: 20px;
        width: 50px;
        height: 50px;
        border: 4px solid rgba(255, 255, 255, 0.1);
        border-top: 4px solid #ffffff;
        border-radius: 50%;
        animation: spin 1s linear infinite;
        margin-left: auto;
        margin-right: auto;
    }

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