.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 999999;
    transition: opacity 0.5s, visibility 0.5s;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-logo {
    font-family: 'Geist Mono', monospace;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 2rem;
    letter-spacing: -0.05em;
    opacity: 0;
}

.preloader-logo.loaded {
    opacity: 1;
    animation: preloaderLogoFade 1s ease-in-out infinite alternate;
}

.preloader-progress {
    width: 200px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 2rem;
    opacity: 0;
}

.preloader-progress.loaded {
    opacity: 1;
}

.preloader-progress-bar {
    height: 100%;
    background: var(--accent);
    width: 0%;
    animation: preloaderProgress 2s ease-in-out infinite;
}

@keyframes preloaderLogoFade {
    from { opacity: 0.5; }
    to { opacity: 1; }
}

@keyframes preloaderProgress {
    0% { width: 0%; transform: translateX(-100%); }
    50% { width: 100%; transform: translateX(0%); }
    100% { width: 0%; transform: translateX(100%); }
}

@media (max-width: 768px) {
    .preloader-logo {
        font-size: 2.5rem;
    }
    
    .preloader-progress {
        width: 150px;
    }
}