* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f1f5f9;
    color: #334155;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #0f172a;
    color: #ffffff;
    text-align: center;
    padding: 30px 20px;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 12px;
    font-weight: 700;
}

nav {
    font-size: 0.95rem;
}

nav a {
    color: #38bdf8;
    text-decoration: none;
    margin: 0 8px;
    font-weight: 500;
}

nav a:hover {
    text-decoration: underline;
}

nav span {
    color: #64748b;
}

.container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 20px;
    display: flex;
    gap: 25px;
    flex-grow: 1;
    align-items: flex-start;
}

main {
    flex: 3;
    background-color: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.article-header {
    background-color: #0f172a;
    color: #ffffff;
    text-align: center;
    padding: 25px 20px;
}

.article-header h2 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.article-header .meta {
    font-size: 0.85rem;
    color: #94a3b8;
}

.article-body {
    padding: 25px;
}

/* Resim yerine harika görünen banner kutusu tasarımı */
.ai-banner {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #38bdf8;
    box-shadow: inset 0 0 20px rgba(56, 189, 248, 0.2);
}

.ai-icon {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

.ai-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #e2e8f0;
    letter-spacing: 0.5px;
}

.image-caption {
    text-align: center;
    font-size: 0.85rem;
    color: #64748b;
    font-style: italic;
    margin-top: 10px;
    margin-bottom: 25px;
}

.article-content p {
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 0.95rem;
    color: #475569;
}

.article-content h3 {
    font-size: 1.1rem;
    color: #0f172a;
    margin-top: 20px;
    margin-bottom: 10px;
}

aside {
    flex: 1;
    background-color: #e0f2fe;
    border-radius: 12px;
    padding: 20px;
    border: 1px solid #bae6fd;
}

aside h3 {
    font-size: 1rem;
    color: #0f172a;
    margin-bottom: 12px;
}

aside p {
    font-size: 0.85rem;
    line-height: 1.5;
    color: #475569;
}

footer {
    text-align: center;
    padding: 15px;
    font-size: 0.8rem;
    color: #64748b;
    margin-top: auto;
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    aside {
        width: 100%;
    }
}