#gtc-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(232, 232, 232, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999;
    transition: opacity 0.3s ease;
}

#gtc-loader-overlay.hidden {
    display: none;
}

/* Loader esterno */
.gtc-loader {
    position: relative;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        inset -10px -10px 15px rgba(255, 255, 255, 1),
        inset 10px 10px 10px rgba(0, 0, 0, 0.1);
}

/* Cerchio interno centrale */
.gtc-loader::before {
    content: "";
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    box-shadow:
        -10px -10px 15px rgba(255, 255, 255, 1),
        10px 10px 10px rgba(0, 0, 0, 0.1);
}

/* Contenitore che ruota */
.gtc-loader .dot-ring {
    position: absolute;
    width: 190px;
    height: 190px;
    animation: gtc-rotate 4s linear infinite;
}

/* Pallina rossa */
.gtc-loader .dot-ring::before {
    content: "";
    position: absolute;
    top: 0;
    left: 80%;
    transform: translateX(-50%);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(45deg, #cc151c, #cc151c);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
}

.gtc-loader-logo {
    position: absolute;
    width: 50px;
    height: auto;
    z-index: 3;
}

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