:root {
    --color1: 18, 113, 255;
    --color2: 107, 74, 255;
    --color3: 100, 100, 255;
    --color4: 50, 160, 220;
    --color5: 80, 47, 122;
    --color-interactive: 140, 100, 255;
    --circle-size: 80%;
    --blending: soft-light;
}

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

body,
html {
    font-family: "Montserrat", sans-serif;
    height: 100%;
    width: 100%;
    overflow-x: hidden;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/cyanotype-image.jpg');
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.content {
    position: relative;
    z-index: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.lang-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.2);
    padding: 5px 10px;
    border-radius: 5px;
}

.lang-switcher a {
    color: white;
    text-decoration: none;
    margin: 0 5px;
}

.lang-switcher a.active {
    font-weight: bold;
    text-decoration: underline;
}

h1,
h2 {
    margin-bottom: 1rem;
}

.two-columns {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.column {
    flex: 1;
    min-width: 300px;
}

.section {
    background: rgba(0, 0, 0, 0.6);
    margin-bottom: 2rem;
    padding: 2rem;
    border-radius: 8px;
}

.social-links {
    margin-top: 1rem;
}

.social-links a {
    display: inline-block;
    margin-right: 1rem;
    text-decoration: none;
}

.photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    display: block;
    border: 3px solid white;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

@keyframes moveInCircle {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes moveVertical {
    0% {
        transform: translateY(-50%);
    }

    100% {
        transform: translateY(50%);
    }
}

@keyframes moveHorizontal {
    0% {
        transform: translateX(-50%) translateY(-10%);
    }

    100% {
        transform: translateX(50%) translateY(10%);
    }
}

.g1,
.g2,
.g3,
.g4,
.g5,
.interactive {
    position: absolute;
    mix-blend-mode: var(--blending);
    width: var(--circle-size);
    height: var(--circle-size);
    opacity: 0.5;
}

.g1 {
    background: radial-gradient(circle at center, rgba(var(--color1), 0.8) 0, rgba(var(--color1), 0) 50%) no-repeat;
    animation: moveVertical 30s ease infinite;
}

.g2 {
    background: radial-gradient(circle at center, rgba(var(--color2), 0.8) 0, rgba(var(--color2), 0) 50%) no-repeat;
    animation: moveInCircle 20s reverse infinite;
}

.g3 {
    background: radial-gradient(circle at center, rgba(var(--color3), 0.8) 0, rgba(var(--color3), 0) 50%) no-repeat;
    animation: moveInCircle 40s linear infinite;
}

.g4 {
    background: radial-gradient(circle at center, rgba(var(--color4), 0.8) 0, rgba(var(--color4), 0) 50%) no-repeat;
    animation: moveHorizontal 40s ease infinite;
}

.g5 {
    background: radial-gradient(circle at center, rgba(var(--color5), 0.8) 0, rgba(var(--color5), 0) 50%) no-repeat;
    width: calc(var(--circle-size) * 2);
    height: calc(var(--circle-size) * 2);
    animation: moveInCircle 20s ease infinite;
}

.interactive {
    background: radial-gradient(circle at center, rgba(var(--color-interactive), 0.8) 0, rgba(var(--color-interactive), 0) 50%) no-repeat;
    width: 100%;
    height: 100%;
    top: -50%;
    left: -50%;
    opacity: 0.7;
}

*:focus {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .two-columns {
        flex-direction: column;
    }
}