/* Preloader Container */
    .preloader {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: #050810;
        z-index: 99999;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: opacity 0.5s ease, visibility 0.5s ease;
    }

    .preloader.fade-out {
        opacity: 0;
        visibility: hidden;
    }

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

    /* Logo Container */
    .preloader-logo {
        margin-bottom: 2rem;
    }

    .logo-icon {
        width: 120px;
        height: 120px;
        margin: 0 auto 1.5rem;
        position: relative;
    }

    .logo-svg {
        width: 100%;
        height: 100%;
    }

    /* Rings Animation */
    .ring {
        fill: none;
        stroke-width: 2;
        stroke-linecap: round;
        transform-origin: center;
    }

    .ring-outer {
        stroke: rgba(16, 185, 129, 0.2);
        stroke-dasharray: 175;
        stroke-dashoffset: 175;
        animation: ring-outer 2s ease-in-out infinite;
    }

    .ring-middle {
        stroke: rgba(16, 185, 129, 0.4);
        stroke-dasharray: 125;
        stroke-dashoffset: 125;
        animation: ring-middle 2s ease-in-out infinite;
        animation-delay: 0.2s;
    }

    .ring-inner {
        stroke: rgba(16, 185, 129, 0.6);
        stroke-dasharray: 75;
        stroke-dashoffset: 75;
        animation: ring-inner 2s ease-in-out infinite;
        animation-delay: 0.4s;
    }

    .center-dot {
        fill: #10b981;
        animation: pulse-dot 1.5s ease-in-out infinite;
    }

    @keyframes ring-outer {
        0%, 100% {
            stroke-dashoffset: 175;
            transform: rotate(0deg);
        }
        50% {
            stroke-dashoffset: 0;
            transform: rotate(180deg);
        }
    }

    @keyframes ring-middle {
        0%, 100% {
            stroke-dashoffset: 125;
            transform: rotate(0deg);
        }
        50% {
            stroke-dashoffset: 0;
            transform: rotate(-180deg);
        }
    }

    @keyframes ring-inner {
        0%, 100% {
            stroke-dashoffset: 75;
            transform: rotate(0deg);
        }
        50% {
            stroke-dashoffset: 0;
            transform: rotate(180deg);
        }
    }

    @keyframes pulse-dot {
        0%, 100% {
            transform: scale(1);
            opacity: 1;
        }
        50% {
            transform: scale(1.3);
            opacity: 0.7;
        }
    }

    /* Logo Text */
    .logo-text {
        font-family: 'Space Grotesk', sans-serif;
        font-size: 1.75rem;
        font-weight: 700;
        letter-spacing: 2px;
    }

    .text-quantum {
        background: linear-gradient(135deg, #10b981, #34d399);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        animation: text-glow 2s ease-in-out infinite;
    }

    .text-trade {
        color: #e2e8f0;
        margin-left: 0.5rem;
    }

    @keyframes text-glow {
        0%, 100% {
            filter: drop-shadow(0 0 5px rgba(16, 185, 129, 0.3));
        }
        50% {
            filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.6));
        }
    }

    /* Loading Bar */
    .loading-bar {
        width: 200px;
        height: 4px;
        background: rgba(16, 185, 129, 0.1);
        border-radius: 2px;
        margin: 0 auto 1rem;
        overflow: hidden;
    }

    .loading-progress {
        height: 100%;
        width: 0%;
        background: linear-gradient(90deg, #10b981, #34d399);
        border-radius: 2px;
        transition: width 0.3s ease;
        position: relative;
    }

    .loading-progress::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent
        );
        animation: shimmer 1.5s infinite;
    }

    @keyframes shimmer {
        0% { transform: translateX(-100%); }
        100% { transform: translateX(100%); }
    }

    /* Loading Text */
    .loading-text {
        color: #94a3b8;
        font-size: 0.9rem;
        font-family: 'Inter', sans-serif;
    }

    .dots span {
        animation: dots 1.4s infinite;
        opacity: 0;
    }

    .dots span:nth-child(1) { animation-delay: 0s; }
    .dots span:nth-child(2) { animation-delay: 0.2s; }
    .dots span:nth-child(3) { animation-delay: 0.4s; }

    @keyframes dots {
        0%, 20% { opacity: 0; }
        40% { opacity: 1; }
        100% { opacity: 0; }
    }

    /* Background particles effect */
    .preloader::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: 
            radial-gradient(ellipse at 20% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
            radial-gradient(ellipse at 80% 80%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
        pointer-events: none;
    }