:root {
    --text-primary: #101d42;
    --text-secondary: #fbb44c;
    --text-dark: #2b2922;
    --text-light: #eaeaea;
    --text-white: #ffffff;
    --bg-primary: #141e4c;
    --bg-secondary: #dfedf5;
    --bg-dark: #101d42;
    --bg-light: #ffffff;
    --button-color: #2bb686;
    --fs-large: 1rem;
    --fs-medium: 0.875rem;
    --fs-small: 0.75rem;
    --spacing-xl: 2.625rem;
    --spacing-large: 1.75rem;
    --spacing-medium: 1rem;
    --spacing-small: 0.5rem;
    --spacing-tiny: 0.25rem;
    --mobile-logo-height: 45px;
}

* {
    box-sizing: border-box;
}

body, h1, h2, h3, p {
    margin: 0;
    padding: 0;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

a {
    display: block;
    text-decoration: none;
}

input[type="submit"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    opacity: 1;
}

body {
    font-family: 'Poppins', sans-serif;
}

h1 {
    font-size: 3.5rem
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    font-size: var(--fs-medium);
}

h1 {
    color: var(--text-light);
}

h2 {
    color: var(--text-primary);
}

h3 {
    color: var(--text-secondary);
}

p {
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    min-width: 320px;
    margin: auto;
    padding: var(--spacing-medium);
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--bg-primary);
    z-index: 2;
}

/* NAV section */
nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo-link {
    padding: 0;
}

nav img {
    width: auto;
    height: 60px;
}

nav .menu-icon {
    color: var(--text-light);
    display: none;
}

nav input[type="checkbox"] {
    display: none;
}

nav ul {
    display: flex;
}

nav li {
    position: relative;
}

nav a {
    color: var(--text-light);
    text-transform: uppercase;
    font-size: var(--fs-small);
    padding: var(--spacing-medium);
}

nav .arrow-down-icon {
    font-size: var(--fs-large);
    position: absolute;
}

nav a:hover {
    color: var(--text-secondary);
}

nav .submenu {
    display: none;
    position: absolute;
    background-color: var(--bg-dark);
    top: calc(100% - var(--spacing-small));
    left: var(--spacing-medium);
    width: 10rem;
    padding: var(--spacing-tiny) 0;
    z-index: 3;
}

nav .submenu a {
    padding: var(--spacing-tiny) var(--spacing-small);
}

nav .about-us:hover .submenu {
    display: block;
}

@media (max-width: 768px) {
    nav img {
        height: var(--mobile-logo-height);
    }

    nav ul {
        display: none;
    }

    nav .menu-icon {
        display: block;
    }

    nav .arrow-down-icon {
        display: none;
    }

    nav .about-us:hover .submenu {
        display: none;
    }

    nav .menu-icon-container {
        position: relative;
    }

    nav input[type="checkbox"] {
        display: block;
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        margin: 0;
        height: 100%;
        opacity: 0;
        cursor: pointer;
    }

    nav input[type="checkbox"]:checked ~ ul {
        width: 100%;
        background-color: var(--bg-dark);
        display: block;
        position: fixed;
        top: calc(var(--mobile-logo-height) + 2 * var(--spacing-medium));
        left: 0;
    }
}

/* Footer section */
footer {
    background-color: var(--bg-dark);
}

footer p, footer a {
    color: var(--text-light);
    font-size: var(--fs-small);
    text-align: center;
    padding: var(--spacing-medium) 0;
}

footer a {
    display: flex;
    align-items: center;
    justify-content: center;
}

footer img {
    width: 30px;
    height: auto;
    border-radius: 50%;
    margin: var(--spacing-tiny);
}