* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    font-size: 100%;

    --size-h1: 1.25rem;
    --size-body: 1rem;
    --size-meta: 0.75rem;
    --size-small: 0.625rem;

    --ls-wide: 0.25em;
    --ls-normal: 0.1em;
    --ls-tight: -0.01em;

    --lh-tight: 1.2;
    --lh-normal: 1.6;

    --color-bg: #0d1013;
    --color-text: #f1f1f1;
    --color-point: #e63946;
    --color-point-sub: #a8dadc;
    
    --op-high: rgba(241, 241, 241, 0.85);
    --op-mid: rgba(241, 241, 241, 0.5);
    --op-low: rgba(241, 241, 241, 0.15);
    --op-ghost: rgba(241, 241, 241, 0.05);

    --color-border: rgba(255, 255, 255, 0.06);
    --color-nav-bg: rgba(13, 16, 19, 0.95);
}

body, html {
    width: 100%;
    height: 100%;
    background-color: var(--color-bg); 
    color: var(--color-text);
    font-family: 'Pretendard', sans-serif;
    overflow-x: hidden;
}

#scroll-wrapper {
    position: relative;
    width: 100%;
    height: 400vh;
}

#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
    pointer-events: none;
}

#pixel-canvas {
    display: block;
    image-rendering: pixelated; 
    pointer-events: none;
}

#scroll-guide {
    position: absolute;
    bottom: 8vh;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    z-index: 10;
    transition: opacity 0.5s ease;
}

.guide-text {
    font-size: var(--size-small);
    font-weight: 500;
    letter-spacing: 0.4em;
    color: var(--op-mid);
    font-family: 'JetBrains Mono', monospace;
}

.guide-line {
    width: 1px;
    height: 4rem;
    background: linear-gradient(to bottom, var(--op-low), transparent);
    position: relative;
    overflow: hidden;
}

.guide-line::after {
    content: '';
    position: absolute;
    top: -60px;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-text);
    animation: scrollMove 2s infinite;
}

@keyframes scrollMove {
    0% { top: -4rem; }
    100% { top: 4rem; }
}

@media (max-width: 768px) {
    .guide-text {
        font-size: 8px;
    }
}