:root {
    --primary-color: #2c3e50;
    --primary-light: #3a5678;
    --secondary-color: #3498db;
    --secondary-light: #5dade2;
    --accent-color: #e74c3c;
    --light-color: #f8f9fa;
    --light-gray: #ecf0f1;
    --mid-gray: #bdc3c7;
    --dark-color: #2c3e50;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --error-color: #e74c3c;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Header Styles */
.header {
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: space-evenly;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

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

.nav ul li a:hover {
    color: var(--secondary-light);
}

.nav ul li a:hover:after {
    width: 100%;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    margin: 2rem 0;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23ffffff' fill-opacity='0.1' d='M0,128L48,117.3C96,107,192,85,288,112C384,139,480,213,576,224C672,235,768,181,864,160C960,139,1056,149,1152,165.3C1248,181,1344,203,1392,213.3L1440,224L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
    background-size: cover;
    background-position: center;
}

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

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    opacity: 0.9;
}

/* Blog List Section */
.blog-list {
    padding: 2rem 0;
}

.blog-list h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 0.5rem;
}

.blog-list h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
}

.search-filter {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-filter input, 
.search-filter select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--mid-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    flex: 1;
    min-width: 200px;
    transition: var(--transition);
}

.search-filter input:focus, 
.search-filter select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.blogs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.blog-image-container {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.blog-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.blog-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-title {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
    line-height: 1.3;
}

.blog-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.tag {
    background-color: var(--light-gray);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
}

.tag:hover {
    background-color: var(--secondary-color);
    color: white;
    cursor: pointer;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: var(--secondary-color);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--primary-color);
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
}

.footer p {
    opacity: 0.8;
}

/* Blog Details Page */
.blog-details-container {
    padding: 2rem 0;
}

.blog-post {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

.blog-post h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    line-height: 1.2;
}

.blog-post .author {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-style: italic;
    display: block;
    font-size: 1.1rem;
}

.blog-post .post-image-container {
    margin: 2rem 0;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.blog-post .post-image {
    width: 100%;
    max-width: 600px;
    height: auto;
    display: block;
    margin: 20px auto;
}

.blog-post .content {
    margin: 2rem 0;
    line-height: 1.8;
    font-size: 1.1rem;
}

.blog-post .content p {
    margin-bottom: 1.5rem;
}

.blog-post .content h2, 
.blog-post .content h3 {
    margin: 2rem 0 1rem;
    color: var(--primary-color);
}

.blog-post .post-meta {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-light);
    border-top: 1px solid var(--light-gray);
    padding-top: 1.5rem;
    margin-top: 2rem;
    font-size: 0.9rem;
}

/* Create Blog Page */
.create-blog {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin: 2rem 0;
}

.create-blog h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 0.5rem;
}

.create-blog h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--mid-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-group textarea {
    min-height: 200px;
    resize: vertical;
}

.btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
}

.btn:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }

/* Loading State */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

.empty-state h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav ul {
        gap: 1rem;
    }
    
    .hero {
        padding: 2rem 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .search-filter {
        flex-direction: column;
    }
    
    .search-filter input, 
    .search-filter select {
        width: 100%;
    }
    
    .blogs-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-post {
        padding: 2rem;
    }
    
    .blog-post h1 {
        font-size: 2rem;
    }
    
    .create-blog {
        padding: 1.5rem;
    }
    
    .blog-post .post-meta {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .blog-list h2,
    .create-blog h2 {
        font-size: 1.8rem;
    }
}

/* Actions Buttons */
.actions .btn {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
    margin-right: 10px;
}

.actions .btn:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}