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

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background-color: #0a0a0a;
    color: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    position: relative;
}

#noise-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.6;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#noise-canvas.transition {
    opacity: 1;
}

.background-logo {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90vw;
    max-width: 1400px;
    height: auto;
    opacity: 0.05;
    z-index: 2;
    pointer-events: none;
}

.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    display: flex;
    justify-content: center;
    padding: 1.5rem 2rem;
}

.nav-content {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: #888;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: lowercase;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #fff;
}

.nav-link.active {
    color: rgba(138, 43, 226, 0.8);
}

.content {
    position: relative;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    text-align: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.content.fade-in {
    opacity: 1;
}

.content.fade-out {
    opacity: 0;
}

.card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(138, 43, 226, 0.2);
    padding: 1rem 1.5rem;
    font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    color: #aaa;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    min-width: 200px;
    text-align: center;
}

.card:hover {
    border-color: rgba(138, 43, 226, 0.4);
    background: rgba(255, 255, 255, 0.03);
    transform: translateY(-2px);
}

@media (max-width: 640px) {
    .background-logo {
        width: 95vw;
        opacity: 0.04;
    }

    .nav-bar {
        padding: 1rem 1.5rem;
    }

    .nav-content {
        gap: 1.5rem;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    .content {
        padding: 1.5rem;
    }

    .card {
        min-width: unset;
        padding: 0.875rem 1.25rem;
    }
}

@media (min-width: 641px) and (max-width: 1024px) {
    .background-logo {
        width: 85vw;
    }
}

@media (min-width: 1025px) {
    .background-logo {
        width: 80vw;
        opacity: 0.06;
    }
}