body {
    background-color: #f4f6f8;
    margin: 0;
    font-family: 'Pretendard', sans-serif;
    color: #111;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: -150px;
    left: -150px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(176, 209, 148, 0.4) 0%, rgba(176, 209, 148, 0) 70%);
    filter: blur(50px);
    z-index: -1;
}

body::after {
    content: '';
    position: fixed;
    bottom: -150px;
    right: -150px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(206, 232, 187, 0.5) 50%, rgba(209, 228, 195, 0) 70%);
    filter: blur(50px);
    z-index: -1;
}

.side-deco {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    font-weight: 800;
    color: #979da4;
    letter-spacing: 4px;
    writing-mode: vertical-rl;
    opacity: 0.6;
    z-index: 1;
}

.side-deco.left {
    left: 40px;
}

.side-deco.right {
    right: 40px;
    transform: translateY(-50%) rotate(180deg);
}