@import url(https://fonts.googleapis.com/css?family=Raleway);

/* Define CSS variables */
:root {
    --color-dark-gradient: #000;
    --color-white: #fff;
    --color-gray-100: #ccc;
    --font-sm: 1rem;
    --transition-default: 0.3s ease;
}

header {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.studio-logo {
    width: auto;
    height: 34px;
}

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--heder-h);
    padding: 0 2.5rem;
    /* background: var(--color-dark-gradient); */
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
}

.menu {
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu a {
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: var(--transition-default);
    position: relative;
}

.menu a:hover {
    color: var(--color-gray-100);
}

.menu .active {
    font-weight: 600;
}

.menu a::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 1px;
    bottom: -4px;
    left: 0;
    background-color: var(--color-white);
    transform-origin: bottom right;
    transition: transform var(--transition-default);
}

.menu a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* Mobile menu */
.menu-button-container {
    display: none;
    height: 100%;
    width: 30px;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#menu-toggle {
    display: none;
}

.menu-button,
.menu-button::before,
.menu-button::after {
    display: block;
    background-color: var(--color-white);
    position: absolute;
    height: 2px;
    width: 25px;
    border-radius: 2px;
    transition: transform var(--transition-default);
}

.menu-button::before {
    content: '';
    margin-top: -8px;
    transition: transform var(--transition-default);
}

.menu-button::after {
    content: '';
    margin-top: 8px;
    transition: transform var(--transition-default);
}

#menu-toggle:checked + .menu-button-container .menu-button::before {
    margin-top: 0;
    transform: rotate(45deg);
}

#menu-toggle:checked + .menu-button-container .menu-button {
    background: rgba(255, 255, 255, 0);
}

#menu-toggle:checked + .menu-button-container .menu-button::after {
    margin-top: 0;
    transform: rotate(-45deg);
}

/* Responsive styles */
@media (max-width: 48rem) {
    .menu-button-container {
        display: flex;
        height: 100%;
        width: 30px;
        cursor: pointer;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        z-index: 2;
    }
    
    .menu {
        position: absolute;
        top: 0;
        margin-top: 5rem;
        left: 0;
        flex-direction: column;
        width: 100%;
        justify-content: center;
        align-items: center;
        gap: 0;
        background: var(--color-dark-gradient);
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transition: visibility 0s linear var(--transition-default), 
                    opacity var(--transition-default);
    }

    #menu-toggle:checked ~ .menu {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        transition: visibility 0s linear 0s, 
                    opacity var(--transition-default);
    }

    .menu li {
        height: 0;
        margin: 0;
        padding: 0;
        border: 0;
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transition: visibility 0s linear var(--transition-default),
                    opacity var(--transition-default),
                    height var(--transition-default);
    }

    #menu-toggle:checked ~ .menu li {
        height: 3.5rem;
        padding: 0.75rem;
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        transition: visibility 0s linear 0s,
                    opacity var(--transition-default),
                    height var(--transition-default);
        display: flex;
        align-items: center;
    }
    
    .menu > li {
        display: flex;
        justify-content: center;
        margin: 0;
        width: 100%;
        color: var(--color-white);
        background-color: transparent;
    }

    .menu a {
        width: 100%;
        text-align: center;
    }
}
