/* Resetowanie marginesów i paddingu */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Styl podstawowy */
body, html {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    line-height: 1.6;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Nawigacja */
nav {
    background-color: white;
    padding: 10px 15px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.navbar-left {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.navbar-brand {
    font-weight: bold;
    font-size: 24px;
    color: #004a99;
    text-decoration: none;
}

.slogan {
    margin-left: 15px;
    font-size: 14px;
    color: #666;
    font-style: italic;
}

.navbar-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #004a99;
}

/* Styl dla menu nawigacyjnego */
.navbar-menu {
    list-style-type: none;
    display: flex;
    flex-direction: row;
    margin: 0;
    padding: 0;
}

.navbar-menu li {
    margin-left: 20px;
}

.navbar-menu li a {
    font-size: 14px;
    color: #004a99;
    text-decoration: none;
    padding: 8px 16px;
    background-color: transparent;
    border: 2px solid transparent;
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.navbar-menu li a:hover {
    background-color: rgba(0, 74, 153, 0.1);
    color: #004a99;
}

/* Główna sekcja artykułu */
.article-content {
    max-width: 100%;
    margin: 100px 10px 20px;
    padding: 15px;
    background-color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    flex: 1;
}

.article-content h1 {
    font-size: 2em;
    color: #004a99;
    text-align: center;
    margin-bottom: 15px;
}

.article-content .article-date {
    font-size: 0.9em;
    color: #777;
    text-align: center;
    margin-bottom: 15px;
}

.article-content img.article-image {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    margin-bottom: 15px;
}

.article-content h2 {
    font-size: 1.5em;
    color: #004a99;
    margin-top: 15px;
    margin-bottom: 10px;
}

.article-content p {
    font-size: 1em;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.article-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.article-content ul li {
    margin-bottom: 10px;
    color: #333;
}

/* Stopka */
footer {
    width: 100%;
    text-align: center;
    padding: 15px;
    background-color: #004a99;
    color: white;
    position: relative;
    bottom: 0;
    left: 0;
    box-sizing: border-box;
}

/* Media queries dla responsywności i menu hamburgerowego */

/* Dla ekranów o szerokości maksymalnie 768px (urządzenia mobilne) */
@media (max-width: 768px) {
    nav {
        padding: 10px 15px;
    }

    .navbar-left {
        flex-direction: column;
        align-items: flex-start;
    }

    .slogan {
        margin-left: 0;
        margin-top: 5px;
    }

    .navbar-toggle {
        display: block;
        z-index: 1001;
        position: relative;
    }

    .navbar-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: white;
        position: absolute;
        top: 60px;
        left: 0;
        padding: 0;
        margin: 0;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        z-index: 999;
        opacity: 0;
        transition: opacity 0.3s ease-out;
    }

    .navbar-menu.show {
        display: flex;
        opacity: 1;
    }

    .navbar-menu li {
        width: 100%;
        text-align: left;
        margin-left: 0;
        border-bottom: 1px solid #eee;
    }

    .navbar-menu li a {
        padding: 15px;
        display: block;
        font-size: 16px;
        color: #004a99;
        background-color: transparent;
        border: none;
        transition: background-color 0.3s ease, color 0.3s ease;
    }

    .navbar-menu li a:hover {
        background-color: rgba(0, 74, 153, 0.1);
        color: #004a99;
    }

    .article-content {
        margin-top: 130px;
    }
}

/* Dla ekranów o szerokości co najmniej 769px (tablety i większe) */
@media (min-width: 769px) {
    .article-content {
        max-width: 750px;
        margin: 130px auto 20px;
    }

    .article-content h1 {
        font-size: 2.5em;
    }

    .article-content h2 {
        font-size: 1.8em;
    }

    .article-content p {
        font-size: 1.1em;
    }

    .article-content img.article-image {
        width: 80%;
    }

    .navbar-menu li a {
        font-size: 18px;
    }

    footer {
        padding: 25px;
    }
}

/* Dla ekranów o szerokości co najmniej 1024px (laptopy) */
@media (min-width: 1024px) {
    .article-content {
        max-width: 800px;
        margin: 140px auto 20px;
    }

    .article-content img.article-image {
        width: 70%;
    }
}

/* Dla ekranów o szerokości co najmniej 1200px (monitory) */
@media (min-width: 1200px) {
    .article-content {
        max-width: 900px;
    }

    .article-content img.article-image {
        width: 65%;
    }
}