/* Celý layout */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: Verdana, sans-serif;
    font-size: 14px;
    background-color: #ffffff;
    color: #333;
    display: flex;
    flex-direction: column;
}

.main {
    flex: 1;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Úvodní text */
.intro {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 30px;
    text-align: justify;
    color: #333;
}

/* Hlavička */
.top-bar-header {
    background-color: #3366cc;
    padding: 20px 0;
}
.top-bar-header a {
    color: inherit;
    text-decoration: none;
    font: inherit;
}
.top-bar-content {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    text-align: center;
}
.header-left,
.header-center,
.header-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}
.logo {
    height: 70px;
}
.title-main {
    font-size: 36px;
    font-weight: bold;
    color: white;
}
.title-sub {
    font-size: 22px;
    color: white;
    line-height: 1.3;
}

/* Kategorie */
.categories, .images {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-bottom: 30px;
    justify-content: center;
}

.category,
.category.sub {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 260px;
    text-align: center;
    text-decoration: none;
    color: #004080;
    font-weight: bold;
    transition: transform 0.2s;
}
.category:hover {
    transform: scale(1.03);
}
.category img,
.category.sub img {
    width: 260px;
    height: 180px;
    object-fit: cover;
    border: none;
    background-color: #f0f0f0;
    padding: 4px;
}
.category h2 {
    background-color: #ffcc33;
    color: #000;
    font-weight: bold;
    padding: 4px 6px;
    margin-top: -5px;
    font-size: 14px;
}

.category a,
.category.sub a,
.images a {
    text-decoration: none;
}

/* Obrázky */
.images a {
    display: block;
    width: 220px;
    text-align: center;
}
.images img {
    width: 220px;
    height: 160px;
    object-fit: cover;
    border: none;
    padding: 4px;
    background-color: #f0f0f0;
}
.images a span {
    background-color: #ffcc33;
    color: #000;
    font-weight: bold;
    padding: 4px 6px;
    display: block;
    margin-top: -5px;
    font-size: 14px;
}

/* Tlačítko zpět */
.back-button {
    display: inline-block;
    margin: 10px 0 20px;
    padding: 6px 12px;
    background-color: #ffcc33;
    color: black;
    font-weight: bold;
    font-size: 18px;
    text-decoration: none;
    border-radius: 4px;
}

/* Patička */
.footer {
    background-color: #666666;
    color: white;
    text-align: center;
    padding: 10px;
    font-size: 13px;
    margin-top: 0;
}
.footer a,
.footer-link {
    color: #ffcc33;
    text-decoration: none;
}
.footer a:hover,
.footer-link:hover {
    text-decoration: underline;
}

.page-header {
    text-align: center;
    margin: 20px 0;
}

.page-header h1 {
    margin-bottom: 20px;
}

.page-header .back-button {
    margin-bottom: 10px;
}

/* Responsivita */
@media (max-width: 768px) {
    .top-bar-content {
        flex-direction: column;
        gap: 10px;
    }
    .logo {
        height: 60px;
    }
    .title-main {
        font-size: 24px;
    }
    .title-sub {
        font-size: 16px;
    }

    /* Náhledy NEzmenšujeme */
    .categories, .images {
        justify-content: center;
    }

    .category, .category.sub, .images a {
        width: 260px;
    }

    .category img, .category.sub img {
        width: 260px;
        height: 180px;
        object-fit: cover;
    }

    .images img {
        width: 220px;
        height: 160px;
        object-fit: cover;
    }
}