@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;600;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: hsl(0, 0%, 99%);
    --elements: hsl(0, 100%, 100%);
    --text: hsl(200, 15%, 8%);
    --input: hsl(0, 0%, 50%);
}

body {
    font-family: 'Nunito Sans', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* DARK MODE */
body.dark {
    --bg: hsl(207, 26%, 17%);
    --elements: hsl(209, 23%, 22%);
    --text: hsl(0, 100%, 100%);
    --input: hsl(0, 100%, 100%);
}

/* HEADER */
header {
    background-color: var(--elements);
    padding: 24px 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 24px;
    font-weight: 800;
}

#theme-toggle {
    background: none;
    border: none;
    font-family: 'Nunito Sans', sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
}

/* CONTROLS */
.controls {
    padding: 48px 80px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.search-box {
    background-color: var(--elements);
    display: flex;
    align-items: center;
    padding: 16px 24px;
    border-radius: 8px;
    gap: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    width: 480px;
}

.search-box input {
    border: none;
    outline: none;
    background: none;
    font-family: 'Nunito Sans', sans-serif;
    font-size: 14px;
    color: var(--text);
    width: 100%;
}

.search-box input::placeholder {
    color: var(--input);
}

#region-filter {
    background-color: var(--elements);
    color: var(--text);
    border: none;
    padding: 16px 24px;
    border-radius: 8px;
    font-family: 'Nunito Sans', sans-serif;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

/* GRID */
.countries-grid {
    padding: 0 80px 48px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 48px;
}

/* CARD */
.country-card {
    background-color: var(--elements);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.country-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.card-info {
    padding: 24px;
}

.card-info h2 {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 16px;
}

.card-info p {
    font-size: 14px;
    margin-bottom: 8px;
}

.card-info span {
    font-weight: 300;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    header {
        padding: 24px 16px;
    }

    .controls {
        padding: 24px 16px;
    }

    .search-box {
        width: 100%;
    }

    .countries-grid {
        grid-template-columns: 1fr;
        padding: 0 16px 48px;
    }
}

/* DETAIL PAGE */
.detail-main {
    padding: 48px 80px;
}

.back-btn {
    background-color: var(--elements);
    color: var(--text);
    border: none;
    padding: 10px 32px;
    border-radius: 6px;
    font-family: 'Nunito Sans', sans-serif;
    font-size: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    margin-bottom: 64px;
}

.detail-content {
    display: flex;
    gap: 80px;
    align-items: center;
}

#detail-flag {
    width: 45%;
    max-width: 560px;
}

.detail-info {
    flex: 1;
}

.detail-info h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 24px;
}

.detail-columns {
    display: flex;
    gap: 80px;
    margin-bottom: 48px;
}

.detail-col p {
    font-size: 16px;
    margin-bottom: 12px;
}

.detail-col span {
    font-weight: 300;
}

.border-countries {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.border-countries strong {
    font-size: 16px;
    white-space: nowrap;
}

#border-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.border-btn {
    background-color: var(--elements);
    color: var(--text);
    border: none;
    padding: 6px 24px;
    border-radius: 4px;
    font-family: 'Nunito Sans', sans-serif;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

@media (max-width: 768px) {
    .detail-main {
        padding: 24px 16px;
    }

    .detail-content {
        flex-direction: column;
    }

    #detail-flag {
        width: 100%;
    }

    .detail-columns {
        flex-direction: column;
        gap: 0;
    }
}