/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #111111;
    --white: #ffffff;
    --grey: #8a8a8a;
    --accent: #f5f5f5;
}

html, body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--black);
    color: var(--white);
    overflow: hidden;
}

/* Film grain overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    z-index: 1000;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 3rem;
    z-index: 100;
}

.logo {
    font-weight: 900;
    font-size: 1.1rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* Hero */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    padding: 2rem;
}

.hero-content {
    text-align: center;
}

.hero-tag {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.4em;
    color: var(--grey);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(4rem, 15vw, 12rem);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.hero-sub {
    font-size: 1rem;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.8;
    letter-spacing: 0.05em;
}

.hero-line {
    width: 60px;
    height: 2px;
    background: var(--white);
    margin: 3rem auto 0;
    opacity: 0.4;
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem 3rem;
    text-align: center;
}

.footer p {
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--grey);
    text-transform: uppercase;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 1.5rem 1.5rem;
    }

    .hero-title {
        font-size: clamp(3rem, 20vw, 6rem);
    }

    .hero-sub {
        font-size: 0.9rem;
    }

    .footer {
        padding: 1.5rem;
    }
}