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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #f8f8f8;
    color: #1a1a1a;
    line-height: 1.8;
    min-height: 100vh;
}

/* Subtle grid background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

nav {
    position: fixed;
    top: 0;
    right: 0;
    padding: 30px 40px;
    display: flex;
    gap: 40px;
    z-index: 100;
}

nav a {
    text-decoration: none;
    color: #666666;
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #1a1a1a;
}

nav .arrow {
    margin-left: 4px;
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 140px 40px 80px 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero, .content {
    width: 100%;
    max-width: 750px;
    margin: 0 auto;
    text-align: left;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    padding: 24px 40px;
}

footer p {
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 11px;
    color: #888888;
    letter-spacing: 0.05em;
}

.hero {
    margin-bottom: 100px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: nowrap;
}

#torus-canvas {
    width: 70px;
    height: 70px;
    flex-shrink: 0;
}

h1 {
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 38px;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    white-space: nowrap;
    color: #1a1a1a;
}

.content {
    max-width: 750px;
}

.tagline {
    font-family: 'Lora', 'Georgia', serif;
    font-size: 20px;
    letter-spacing: 0;
    color: #000000;
    margin-bottom: 50px;
    font-weight: 700;
}

.section-title {
    font-family: 'Lora', 'Georgia', serif;
    font-size: 20px;
    letter-spacing: 0;
    color: #000000;
    margin-top: 50px;
    margin-bottom: 24px;
    font-weight: 700;
}

.product-list {
    list-style: none;
    padding-left: 0;
    margin-top: 24px;
}

.product-list li {
    margin-bottom: 32px;
}

.product-title::before {
    content: "•";
    margin-right: 12px;
    color: #666666;
}

.product-title {
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 15px;
    letter-spacing: 0.02em;
    color: #1a1a1a;
    margin-top: 0;
    margin-bottom: 16px;
    font-weight: 500;
}

.content p {
    margin-bottom: 28px;
    font-size: 17px;
    font-family: 'Lora', 'Georgia', serif;
    color: #333333;
    font-weight: 400;
}

.content em {
    font-style: italic;
    color: #1a1a1a;
}

/* Selection color */
::selection {
    background: rgba(0, 0, 0, 0.1);
    color: #1a1a1a;
}

@media (max-width: 768px) {
    nav {
        padding: 20px;
        gap: 20px;
    }

    nav a {
        font-size: 9px;
    }

    main {
        padding: 100px 24px 60px;
    }

    .logo-container {
        gap: 16px;
    }

    #torus-canvas {
        width: 50px;
        height: 50px;
    }

    h1 {
        font-size: 22px;
        letter-spacing: 0.2em;
    }

    .content p {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .logo-container {
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }

    #torus-canvas {
        width: 40px;
        height: 40px;
    }

    h1 {
        font-size: 16px;
        letter-spacing: 0.15em;
    }
}