:root {
    --primary: #0a2540;
    --primary-light: #1a365d;
    --accent: #635bff;
    --accent-light: #807aff;
    --text-dark: #0a2540;
    --text-light: #6b7280;
    --background: #ffffff;
    --background-light: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--background);
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s ease;
    padding: 0.5rem;
    border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.nav-button {
    background: var(--accent);
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-button:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
}

/* Extension Banner */
.extension-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 0;
    margin-top: 80px;
    text-align: center;
}

.extension-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.extension-text {
    flex: 1;
    text-align: left;
}

.extension-text h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.extension-text p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.extension-features {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.feature i {
    color: #4ade80;
}

.extension-button {
    background: white;
    color: var(--primary);
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.extension-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.extension-image {
    flex: 0 0 200px;
    text-align: center;
}

.extension-icon {
    font-size: 4rem;
    color: white;
    opacity: 0.9;
}

/* Article Header */
.article-header {
    padding: 60px 0 40px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--primary);
}

.article-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.5;
}

/* Article Content */
.article-content {
    padding: 60px 0;
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin: 3rem 0 1.5rem;
    color: var(--primary);
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2.5rem 0 1rem;
    color: var(--primary);
}

.article-content p {
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.article-content ul, .article-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

/* Info Box */
.info-box {
    background: var(--background-light);
    border-left: 4px solid var(--accent);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 8px 8px 0;
}

.info-box h4 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

/* Step Box */
.step-box {
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow);
}

.step-number {
    background: var(--accent);
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.content-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    text-align: center;
}

.content-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

/* CTA Box */
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
}

.cta-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
}

/* Extension CTA in Content */
.extension-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2.5rem;
    border-radius: 12px;
    margin: 3rem 0;
    text-align: center;
}

.extension-cta h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.extension-cta p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

/* Footer */
footer {
    background: var(--primary);
    color: white;
    padding: 60px 0 30px;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Mobile Menu */
.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        border-top: 1px solid var(--border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-button {
        display: block;
    }
    
    .extension-content {
        flex-direction: column;
        text-align: center;
    }
    
    .extension-text {
        text-align: center;
    }
    
    .extension-features {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-subtitle {
        font-size: 1.1rem;
    }
    
    .container {
        padding: 0 20px;
    }
}


/* Add these styles to your existing styles.css */

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    color: var(--primary);
}

.logo-image {
    height: 40px;
    width: auto;
    border-radius: 6px;
}

.logo-text {
    font-size: 1.5rem;
}

/* Author Avatar with Logo */
.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Footer Logo */
.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo-image {
    height: 30px;
    width: auto;
    border-radius: 4px;
}

/* Mobile Responsive for Logo */
@media (max-width: 768px) {
    .logo-text {
        font-size: 1.25rem;
    }
    
    .logo-image {
        height: 32px;
    }
}


/* Extension Banner Logo Styles */
.extension-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.extension-logo {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    transition: all 0.3s ease;
}


/* Mobile Responsive */
@media (max-width: 768px) {
    .extension-icon {
        width: 100px;
        height: 100px;
        margin: 0 auto;
    }
    
    .extension-logo {
        width: 70px;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .extension-icon {
        width: 90px;
        height: 90px;
    }
    
    .extension-logo {
        width: 60px;
        height: 60px;
    }
}