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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #aee9f9 0%, #ffffff 100%);
    color: #222;
    min-height: 100vh;
}

header {
    background: linear-gradient(90deg, #0083b0 0%, #00b4db 100%);
    color: white;
    padding: 30px 0 10px 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.header-content {
    text-align: center;
    margin-bottom: 10px;
}

header h1 {
    font-size: 2.8rem;
    letter-spacing: 2px;
    font-weight: bold;
}

header p {
    font-size: 1.2rem;
    font-style: italic;
    margin-top: 5px;
    color: #e0f7fa;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 30px;
}

nav a {
    color: #e0f7fa;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: #ffecb3;
}

main {
    max-width: 800px;
    margin: 40px auto 20px auto;
    padding: 0 20px;
}

.blog-post {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    margin-bottom: 36px;
    padding: 26px 28px 20px 28px;
    transition: box-shadow 0.2s;
}

.blog-post img {
    width: 100%;
    max-height: 280px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 18px;
}

.blog-post h2 {
    color: #0083b0;
    font-size: 2rem;
    margin-bottom: 7px;
}

.meta {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 11px;
}

.blog-post p {
    line-height: 1.7;
    margin-bottom: 14px;
}

.read-more {
    display: inline-block;
    background: #00b4db;
    color: white;
    padding: 7px 20px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s;
}

.read-more:hover {
    background: #0083b0;
}

aside {
    max-width: 320px;
    margin: 40px auto 20px auto;
    padding: 0 20px;
}

.about, .categories {
    background: #e0f7fa;
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 22px;
    box-shadow: 0 2px 8px rgba(0,131,176,0.09);
}

aside h3 {
    color: #0083b0;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.categories ul {
    list-style: none;
    padding-left: 0;
}

.categories li {
    margin-bottom: 6px;
}

.categories a {
    color: #0083b0;
    text-decoration: none;
    transition: color 0.2s;
}

.categories a:hover {
    color: #00b4db;
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 18px;
    background: #0083b0;
    color: #e0f7fa;
    margin-top: 36px;
    font-size: 1rem;
    letter-spacing: 1px;
}

/* Responsywność */
@media (min-width: 1100px) {
    body {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    main {
        float: left;
        width: 64vw;
        margin: 40px 0 20px 0;
    }
    aside {
        float: right;
        width: 27vw;
        margin: 40px 0 20px 32px;
    }
    footer {
        clear: both;
    }
}