/* Genel Stiller */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-color: #95a5a6;
    --white-color: #ffffff;
    --black-color: #333333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}


.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}


.logo span {
    color: var(--primary-color);
}

.navbar ul {
    display: flex;
}

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

.navbar ul li a {
    font-weight: 500;
    transition: var(--transition);
    padding: 5px 0;
    position: relative;
}

.navbar ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.navbar ul li a:hover::after,
.navbar ul li a.active::after {
    width: 100%;
}

.navbar ul li a.active {
    color: var(--primary-color);
}

.search-box {
    display: flex;
    align-items: center;
}

.search-box input {
    padding: 8px 15px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    outline: none;
    width: 200px;
}

.search-box button {
    padding: 8px 15px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background-color: #2980b9;
}

/* Main Content */
.main-content {
    padding: 40px 0;
}

.section-header {
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.section-header h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 10px;
}

.section-header h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

.category-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.filter-btn {
    padding: 8px 16px;
    background-color: var(--light-color);
    color: var(--dark-color);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-color);
    color: var(--white-color);
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.article-card {
    background-color: var(--white-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.article-image {
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 20px;
}

.article-category {
    display: inline-block;
    padding: 4px 10px;
    background-color: var(--light-color);
    color: var(--dark-color);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 10px;
}

.article-category.sql {
    background-color: #f0f8ff;
    color: #1e90ff;
}

.article-category.ai {
    background-color: #fff0f5;
    color: #ff69b4;
}

.article-category.electronics {
    background-color: #fffaf0;
    color: #ff8c00;
}

.article-category.life {
    background-color: #f0fff0;
    color: #2e8b57;
}

.article-title {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--dark-color);
    transition: var(--transition);
}

.article-card:hover .article-title {
    color: var(--primary-color);
}

.article-excerpt {
    color: var(--gray-color);
    font-size: 14px;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--gray-color);
}

.article-date {
    display: flex;
    align-items: center;
    gap: 5px;
}


/* Responsive Tasarım */
@media (max-width: 992px) {
    
    .navbar ul {
        justify-content: center;
    }
    
}

@media (max-width: 768px) {
    
    .articles-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
}

@media (max-width: 576px) {
    .navbar ul {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .navbar ul li {
        margin-left: 0;
    }
    
    .category-filter {
        flex-direction: column;
        width: 100%;
    }
    
    .filter-btn {
        width: 100%;
    }
}