* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: #ffffff;
    color: #050505;
    overflow: hidden;
}


/* Intro page */

.intro-page {
    min-height: 100vh;
    position: relative;
    overflow: hidden;

    display: flex;
    align-items: center;
    justify-content: center;

    background-color: #ffffff;
    background-image: radial-gradient(#d4d4d4 1.2px, transparent 1.2px);
    background-size: 32px 32px;
}

/* black magnifier circle */

.magnifier {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;

    background: #000000;
    transform: translate(-50%, -50%);

    pointer-events: none;
    z-index: 1;
    opacity: 0.96;

    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
}

/* Hero text */

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;

    transition: transform 0.12s ease-out;
    mix-blend-mode: difference;
    color: white;
}

.hero-content h1 {
    margin: 0;
    font-size: clamp(56px, 8vw, 128px);
    font-weight: 900;
    letter-spacing: -5px;
    line-height: 1;
}

.hero-content h1 span {
    font-style: italic;
    font-weight: 300;
}

.hero-content p {
    margin-top: 26px;
    font-size: 20px;
    color: white;
    opacity: 0.75;
}

.enter-hint {
    margin-top: 220px;
    font-size: 14px;
    color: white;
    opacity: 0.45;
    letter-spacing: 0.5px;
    animation: fadePulse 1.8s ease-in-out infinite;
}

@keyframes fadePulse {
    0%, 100% {
        opacity: 0.35;
    }
    50% {
        opacity: 0.75;
    }
}

/* background decoration */

.intro-page::before {
    content: "";
    position: absolute;
    width: 120px;
    height: 120px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    top: 22%;
    left: 24%;
}

.intro-page::after {
    content: "";
    position: absolute;
    width: 90px;
    height: 1px;
    background: rgba(0, 0, 0, 0.06);
    right: 12%;
    top: 32%;
    transform: rotate(26deg);
}

/* Mobile */

@media (max-width: 768px) {
    nav {
        display: none;
    }

    .hero-content h1 {
        font-size: 52px;
        letter-spacing: -2px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .magnifier {
        width: 220px;
        height: 220px;
    }
}