:root {
    /* Colors */
    --color-background: #223330;
    --color-accent: #6F99B0;
    --color-foreground: #FFFFFF;
    --color-gradient-1: #6FB0A4;
    --color-gradient-2: #B0A16F;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    
    /* Typography */
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 2rem;
}

body {
    margin: 0;
    background: linear-gradient(to top right, black, var(--color-background));
    position: relative;
    font-family: 'Urbanist', sans-serif;
    color: var(--color-foreground);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: -1;
}

header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Navigation bar styling */

nav {
    color: white;
    padding: 10px 20px;
}

.blur-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.nav-content {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 2;
}

.logo img {
    height: 20px;
}

.nav-links {
    list-style: none;
    margin-left: auto;
    display: flex;
}

.nav-links li {
    padding: 0 15px;
}

.nav-links a {
    color: var(--color-foreground);
    text-decoration: none;
    padding: var(--space-xs);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus {
    text-decoration: underline;
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.container {
    min-height: 77vh;
    display: grid;
    place-items: center;
    padding: var(--space-md);
    position: relative;
    font-size: clamp(1.5rem, 5vw, 3rem);
}

/* Links styling */

a:link {
    color: #ffffff;
    text-decoration: none;
}

a:visited {
    color: #ffffff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Footer */

footer {
    padding: 20px 100px;
    font-size: small;
    text-align: left;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.footer-columns {
    display: flex;
    flex: 1;
}

.left-column {
    flex: 2;
    max-width: calc(66.67% - 20px);
    margin-left: 30px;
}

.right-column {
    flex: 1;
    max-width: calc(33.33% - 20px);
    margin-right: 30px;
}

.footer-content {
    margin: 0 auto;
}

/* Font
<uniquifier>: Use a unique and descriptive class name
<weight>: Use a value from 100 to 900

.urbanist-<uniquifier> {
  font-family: "Urbanist", sans-serif;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
} */

.urbanist-normal {
   font-family: "Urbanist", sans-serif;
   font-optical-sizing: auto;
   font-weight: 300;
   font-style: normal;
}

.urbanist-headline {
    font-family: "Urbanist", sans-serif;
    font-optical-sizing: auto;
    font-weight: 500;
    font-style: normal;
    font-size: 280%;
}

.headline {
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    background-image: radial-gradient(60% 200% at 0% 50%, var(--color-gradient-1) 0%, var(--color-gradient-2) 45.44%, var(--color-foreground) 100%)
}

@media (max-width: 768px) {
    :root {
        --space-md: 1rem;
        --space-lg: 1.5rem;
    }

    nav {
        padding: 10px;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
    }

    .nav-links li {
        padding: 10px 0;
    }

    .container {
        font-size: large;
        padding: 10px;
    }

    footer {
        padding: 20px;
        text-align: center;
    }

    .footer-columns {
        flex-direction: column;
        align-items: center;
    }

    .left-column, .right-column {
        max-width: 100%;
        margin: 10px 0;
    }
}

@media (max-width: 480px) {
    .logo img {
        height: 15px;
    }

    .container {
        font-size: medium;
    }

    .urbanist-headline {
        font-size: 200%;
    }
}