/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.header-info {
    text-align: center;
    flex: 1;
}

.header-info h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.header-info p {
    font-size: 1rem;
    opacity: 0.9;
}

.date-time {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Navigation Styles */
.nav {
    background-color: #2c3e50;
    padding: 0;
    position: sticky;
    top: 80px;
    z-index: 999;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.nav ul li {
    margin: 0;
}

.nav ul li a {
    color: white;
    text-decoration: none;
    padding: 15px 20px;
    display: block;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.nav ul li a:hover,
.nav ul li a.active {
    background-color: #34495e;
    border-bottom-color: #3498db;
}

/* Main Content Layout */
.main-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
}

/* Content Area */
.content {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 400"><rect fill="%23667eea" width="1200" height="400"/><text x="600" y="200" text-anchor="middle" fill="white" font-size="48" font-family="Arial">اخبار فناوری</text></svg>');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 60px 40px;
    text-align: center;
    margin-bottom: 30px;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Search Bar */
.search-container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.search-box {
    display: flex;
    gap: 10px;
}

.search-input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #e1e8ed;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    border-color: #3498db;
}

.search-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
}

/* News Categories */
.categories {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.category-btn {
    background: #f8f9fa;
    border: 2px solid #e1e8ed;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.category-btn:hover,
.category-btn.active {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.news-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.news-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.news-content {
    padding: 20px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.8rem;
    color: #666;
}

.news-category {
    background: #e3f2fd;
    color: #1976d2;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
}

.news-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.read-more {
    color: #3498db;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #2980b9;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-widget {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
}

.widget-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 20px;
    font-weight: bold;
}

.widget-content {
    padding: 20px;
}

/* Trending News */
.trending-item {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.trending-item:last-child {
    border-bottom: none;
}

.trending-number {
    background: #3498db;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.trending-content h4 {
    font-size: 0.9rem;
    margin-bottom: 5px;
    line-height: 1.4;
}

.trending-meta {
    font-size: 0.8rem;
    color: #666;
}

/* Newsletter */
.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.newsletter-input {
    padding: 12px;
    border: 2px solid #e1e8ed;
    border-radius: 5px;
    font-size: 1rem;
    outline: none;
}

.newsletter-input:focus {
    border-color: #3498db;
}

.newsletter-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.newsletter-btn:hover {
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: #3498db;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #34495e;
    color: white;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #3498db;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    margin-top: 30px;
    color: #bdc3c7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 10px;
    }
    
    .header-info h1 {
        font-size: 1.5rem;
    }
    
    .main-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .nav ul {
        flex-direction: column;
    }
    
    .nav ul li a {
        text-align: center;
    }
    
    .hero {
        padding: 40px 20px;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .categories {
        justify-content: center;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header-info h1 {
        font-size: 1.2rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .news-card {
        margin: 0 10px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}