/* Nav Bar & Footer Styles */

:root {
    --nav: #36322e;  
    --nav1: #36322e1a;  
    --nav2: #36322e33;  
    --nav3: #36322e4d;  
    --nav4: #36322e66;  
    --nav5: #36322e80;  
    --nav6: #36322e99;  
    --nav7: #36322eb3;
    --nav8: #36322ecc;
    --nav9: #36322ee6;
    --nav-text: #F0F0F0;
    --nav-text-hover: #cbcbcb;
}

#nav-bar {
    display: block;
    position: fixed;
    margin: -20px;
    width: 100%;        /* scrollbar */
    max-width: 100vw;
    background-color: transparent;
    color: var(--nav-text);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

#top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background-color: var(--nav);
}

#logo {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
}

#logo-img {
    width: 40px;
    height: 40px;
}

#logo h1 {
    font-weight: 400;
    font-size: 1.1rem;
    margin: 0;
}

#nav-btns p {
    margin: 0;
    margin-right: 5px;
    font-size: 1.4rem;
    color: var(--nav-text);
}

#nav-btns p:hover {
    cursor: pointer;
    color: var(--nav-text-hover);
}

#nav-links li {
    margin: 0 10px;
    font-size: 1.25rem;
}

#divider {
    margin: 25px 20px;
    border: 1px solid var(--nav-text);
}

#nav-links a:link,
#nav-links a:visited {
    color: var(--nav-text);
}

#nav-links a:hover {
    color: var(--nav-text-hover);
    text-decoration: none;
}

#nav-links a:active {
    color: var(--nav-text);
}

#bottom {
    display: none;
}

/* Mobile Menu */

body.mobile-menu-open {
    overflow: hidden;
}

body.mobile-menu-open #nav-bar {
    box-shadow: none;
}

#bottom.mobile-menu-open {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 60px);
    overflow-y: auto;
    background-image: linear-gradient(var(--nav), var(--nav));
    animation: slide 0.5s ease-out;
}

#bottom.mobile-menu-open #nav-links {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10px 0;
}

#bottom.mobile-menu-open #nav-links ul {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    list-style: none;
    padding: 0 20px;
    margin: 0;
}

#bottom.mobile-menu-open #nav-links ul li,
#bottom.mobile-menu-open #nav-links div,
#bottom.mobile-menu-open #nav-footer a ,
#bottom.mobile-menu-open #nav-footer p  {
    animation: nav-text 0.75s linear;
}

.footer {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    bottom: -20px;
    left: -20px;
    background-color: var(--nav);
    color: var(--nav-text);
    margin-top: 50px;
    width: calc(100% + 40px);
    padding: 45px 0 35px 0;
}

.contacts {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.footer a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--nav-text);
}

.footer a:hover {
    background-color: var(--nav-text-hover);
    transform: scale(1.1);
}

.footer img {
    width: 20px;
    height: 20px;
}

.footer-credit {
    width: 100%;
    text-align: center;
}

.footer-credit p {
    color: var(--nav-text-hover);
    margin: 0;
    padding: 0;
}

body.mobile-menu-open .footer {
    display: none;
}

#bottom.mobile-menu-open #nav-footer {
    display: flex;
    position: static;
    padding: 30px 0 40px 0;
    margin-top: 0;
    background-color: transparent;
    width: 100%;
}

@keyframes slide {
    0% {
        height: calc(75vh - 60px);
        background-image: linear-gradient(var(--nav), transparent);
    } 
    10% {background-image: linear-gradient(var(--nav), var(--nav1));}
    20% {background-image: linear-gradient(var(--nav), var(--nav2));}
    30% {background-image: linear-gradient(var(--nav), var(--nav3));}
    40% {background-image: linear-gradient(var(--nav), var(--nav4));}
    50% {background-image: linear-gradient(var(--nav), var(--nav5));}
    60% {background-image: linear-gradient(var(--nav), var(--nav6));}
    70% {
        height: calc(100vh - 60px);
        background-image: linear-gradient(var(--nav), var(--nav7));
    } 
    80% {background-image: linear-gradient(var(--nav), var(--nav8));}
    90% {background-image: linear-gradient(var(--nav), var(--nav9));}
    100% {
        height: calc(100vh - 60px);
        background-image: linear-gradient(var(--nav), var(--nav));
    }
}

@keyframes slide-out {
    0% {
        display: flex;
        background-color: var(--nav);
        height: calc(100vh - 60px);
        opacity: 0;
    }
    100% {
        display: none;
        background-color: var(--nav);
        height: 0px;
        opacity: 0;
    }
}

@keyframes nav-text {
    0% {opacity: 0;}
    50% {
        opacity: 0;
        transform: translateY(-5px);
    }
    100% {opacity: 1;}
}

@media screen and (min-width: 768px) {
    body {
        font-size: 1.5rem;
    }

    #nav-bar {
        margin: -40px;
    }

    #top {
        padding: 15px 20px;
    }

    #logo {
        gap: 20px;
    }

    #logo-img {
        width: 60px;
        height: 60px;
    }

    #logo h1 {
        font-size: 1.8rem;
    }

    #nav-btns p {
        font-size: 2rem;
    }

    #nav-links {
        margin: 40px 0;
    }

    #nav-links li {
        padding: 0 25px;
        font-size: 1.9rem;
    }

    #divider {
        margin: 30px 40px;
    }

    #bottom.mobile-menu-open {
        height: calc(100vh - 90px);
    }

    #bottom.mobile-menu-open #nav-links ul {
        gap: 21px;
    }

    .footer {
        bottom: -40px;
        left: -40px;
        width: calc(100% + 80px);
    }

    .contacts {
        gap: 22px;
    }

    .footer a {
        width: 60px;
        height: 60px;
    }

    .footer img {
        width: 30px;
        height: 30px;
    }
}

@media screen and (min-width: 1024px){
    body {
        font-size: 1rem;
    }

    #nav-bar {
        margin: -10vw;
        margin-top: -60px;
    }

    #logo {
        gap: 15px;
    }

    #logo-img {
        width: 40px;
        height: 40px;
    }

    #logo h1 {
        font-size: 1.1rem;
    }

    #nav-btns p {
        font-size: 1.4rem;
    }

    #nav-links {
        margin: 40px 0;
    }

    #nav-links li {
        padding: 0 10px;
        font-size: 1.25rem;
    }

    #divider {
        margin: 25px 20px;
    }

    #bottom.mobile-menu-open {
        height: calc(100vh - 70px);
    }

    #bottom.mobile-menu-open #nav-links ul {
        gap: 20px;
        padding: 0 20px;
    }

    .footer {
        bottom: -10vw;
        left: -10vw;
        width: calc(100% + 20vw);
        margin-top: 0;
    }

    .contacts {
        gap: 15px;
    }

    .footer a {
        width: 40px;
        height: 40px;
    }

    .footer img {
        width: 20px;
        height: 20px;
    }
}

@media screen and (orientation: landscape) {
    .footer {
        gap: 15px;
        padding: 25px 0 15px 0;
    }
}