:root {
    --primary-color: #0a0b1e;
    --accent-color: #4a90e2;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
}

.preloader {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 11, 30, 0.95);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.section {
    padding: 5rem 0;
    position: relative;
}

img {
    content-visibility: auto;
}

.lazy-load {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

.lazy-load.loaded {
    opacity: 1;
}