*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Nunito Sans', sans-serif;
    font-weight: 600;
}

:root {
    --gap: min(10vw, 4rem);
    --clr-background: hsl(0, 0%, 98%);
    --clr-shadow: rgba(0, 0, 0, 0.1);
    --clr-button: hsl(0, 0%, 100%);
    --clr-text: hsl(0, 0%, 0%);
}

body {
    width: 100%;
    background-color: var(--clr-background);
    color: var(--clr-text);
}

.hidden {
    display: none;
}

/* coutry cards grid */
.container {
    width: 100%;
    height: fit-content;
    display: inline-grid;
    grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
    gap: var(--gap);
    padding: 0 var(--gap) var(--gap) var(--gap);
}

.country-card {
    height: fit-content;
    background-color: var(--clr-button);
    filter: drop-shadow(0 1px 3px var(--clr-shadow));
    overflow: hidden;
    border-radius: 3px;
}

nav {
    width: 100%;
    padding: 1.5rem var(--gap);
    background-color: var(--clr-button);
    display: flex;
    justify-content: space-between;
    align-items: center;
    filter: drop-shadow(0 0 3px var(--clr-shadow));
    font-weight: 800;
}

#nav-logo {
    font-size: 1.5rem;
}

#nav-mode-button {
    text-decoration: none;
    color: var(--clr-text);
    cursor: pointer;
    display: flex;
    align-items: center;
}

#nav-mode-logo {
    margin-right: 0.5rem;
    font-size: 1rem;
    transform: rotate(-30deg);
}

#inputs {
    padding: 3rem var(--gap);
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#search-container {
    height: 100%;
    background-color: var(--clr-button);
    display: flex;
    align-items: center;
    border-radius: 3px;
    filter: drop-shadow(0 0 3px var(--clr-shadow));
}

#search-button,
#search-input {
    border: none;
    background-color: transparent;
    color: hsl(0, 0%, 52%);
}

#search-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 5rem;
    padding: 1rem 0;
    cursor: pointer;
}

#search-input {
    width: 22rem;
}

#search-input:focus {
    outline: none;
}

#search-icon {
    color: hsl(0, 0%, 52%);
}

#filters-container {
    width: fit-content;
    position: relative;
}

#filters-button {
    width: fit-content;
    border-radius: 3px;
    padding: 1rem 2rem;
    background-color: var(--clr-button);
    filter: drop-shadow(0 0 3px var(--clr-shadow));
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#filters-icon {
    padding-left: 1rem;
}

#filters-dropdown {
    z-index: 20;
    border-radius: 3px;
    position: absolute;
    background-color: var(--clr-button);
    padding-top: 1rem;
    left: 0;
    right: 0;
    display: none;
    filter: drop-shadow(0 0 3px var(--clr-shadow));
    margin-top: 0.3rem;
}

.filters-items {
    padding-left: 1.5rem;
    padding-bottom: 1rem;
    cursor: pointer;
}

.filters-items:hover {
    color: gray;
}

.country-flag {
    height: 9rem;
    width: 100%;
    background-image: url('https://restcountries.eu/data/usa.svg');
    background-size: cover;
    background-position: center;

    filter: drop-shadow(0 0 3px var(--clr-shadow));
}

.country-details {
    padding: 1rem 1.5rem 2rem 1.5rem;
    height: 13rem;
}

.country-label {
    font-weight: 600;
}

.country-info {
    font-weight: 300;
}

.country-name {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
    cursor: pointer;
}

.country-name:hover {
    text-decoration: underline;
}

#back-section {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 3rem var(--gap);
}

#back-button {
    padding: 0.5rem 2rem;
    border: none;
    background-color: var(--clr-button);
    border-radius: 3px;
    filter: drop-shadow(0 0 3px var(--clr-shadow));
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--clr-text);
    cursor: pointer;
}

#back-icon {
    padding-right: 1rem;
}

#page-section {
    width: 100%;
    display: flex;
    padding: 1rem 0;
    justify-content: flex-end;
    position: relative;
}

#page-flag-container {
    width: 50vw;
    padding: 0 var(--gap) 0 var(--gap);
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

#page-flag {
    width: 100%;
    height: 100%;
    max-height: 22vw;
    filter: drop-shadow(0 0 3px var(--clr-shadow));
    background-image: url('');
    background-size: cover;
    background-position: center;
}

#page-content {
    width: 50%;
    padding: 0 var(--gap) 0 var(--gap);
}

#page-title {
    font-weight: 800;
}

#page-info {
    width: 100%;
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
}

.page-property {
    font-weight: 600;
    line-height: 1.8rem;
}
.page-property-value {
    font-weight: 300;
}

#borders-container {
    margin-top: 4rem;
}

.borders-button {
    height: 1.5rem;
    padding: 0 1rem;
    margin-left: 0.75rem;
    border: none;
    background-color: var(--clr-button);
    border-radius: 3px;
    filter: drop-shadow(0 0 3px var(--clr-shadow));
    color: var(--clr-text);
    margin-bottom: 1rem;
}

@media (max-width: 870px) {
    #inputs {
        flex-direction: column;
        align-items: flex-start;
        padding-top: 0;
        padding-bottom: 0;
        height: min(30vh, 45vw);
        justify-content: space-evenly;
    }

    #search-container {
        height: fit-content;
        max-width: calc(100vw - var(--gap) * 2);
    }

    nav {
        padding: 1rem var(--gap);
    }
}

@media (max-width: 1000px) {
    #page-section {
        flex-direction: column;
    }

    #page-flag-container {
        position: static;
        height: 30vw;
        width: 100%;
    }

    #page-flag {
        max-height: 100vh;
        width: 60vw;
    }

    #page-content {
        width: 100%;
    }

    #page-title {
        padding-top: 2rem;
    }

    #page-info {
        justify-content: space-around;
    }
    #back-section {
        padding: 2.5rem var(--gap);
    }
}

@media (max-width: 550px) {
    body {
        font-size: 14px;
    }

    #page-flag-container {
        position: static;
        height: 40vw;
        width: 100%;
    }

    #page-info {
        flex-direction: column;
        width: 100%;
        margin: 0;
    }

    .page-properties {
        width: 100%;
        margin-bottom: 2rem;
    }

    #page-flag {
        width: calc(100vw - var(--gap) * 2);
    }

    #page-title {
        padding: 1.5rem 0 1rem 0;
    }

    #borders-container {
        margin: 0;
    }
    #nav-logo {
        font-size: 1rem;
    }

    #nav-mode-button {
        font-size: 0.9rem;
    }

    #page-content {
        width: 100%;
    }
}