/* Author Page Styles - Professional Design */

/* Main Author Profile Container */
.author-profile-page {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 2rem;
}

/* Author Header Section */
.author-profile-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    color: white;
}

.author-profile-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.1)"><polygon points="1000,100 1000,0 0,100"/></svg>');
    background-size: cover;
}

.author-profile-avatar {
    position: relative;
    z-index: 2;
    margin-bottom: 1.5rem;
}

.profile-avatar-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 6px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    object-fit: cover;
    transition: transform 0.3s ease;
}

.profile-avatar-img:hover {
    transform: scale(1.05);
}

.author-profile-info {
    position: relative;
    z-index: 2;
}

.author-profile-name {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.author-profile-title {
    font-size: 1.3rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 1rem;
    color: #f8f9ff;
}

.author-profile-bio {
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.95;
}

/* Quick Stats */
.author-quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
    position: relative;
    z-index: 2;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 1rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Professional Sections */
.author-content {
    padding: 2rem;
}

.author-section {
    margin-bottom: 3rem;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 2rem;
    border-left: 5px solid #667eea;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-icon {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

/* Specializations Grid */
.specializations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.specialization-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.specialization-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.specialization-item:hover::before {
    transform: scaleY(1);
}

.specialization-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #667eea;
}

.specialization-item h4 {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Achievements List */
.achievements-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.achievement-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.achievement-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.achievement-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #28a745, #20c997);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.achievement-text {
    font-size: 1rem;
    color: #495057;
    line-height: 1.5;
}

/* Education Timeline */
.education-timeline {
    position: relative;
    padding-left: 2rem;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.education-item {
    position: relative;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.education-item::before {
    content: '';
    position: absolute;
    left: -25px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: #667eea;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #667eea;
}

.education-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* Social Links */
.social-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.social-link-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    text-align: center;
    text-decoration: none;
    color: #495057;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.social-link-item:hover {
    text-decoration: none;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.social-link-item.facebook:hover {
    background: #1877f2;
}

.social-link-item.youtube:hover {
    background: #ff0000;
}

.social-link-item.telegram:hover {
    background: #0088cc;
}

.social-link-item.zalo:hover {
    background: #0180c7;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.social-icon.facebook {
    background: #1877f2;
    color: white;
}

.social-icon.youtube {
    background: #ff0000;
    color: white;
}

.social-icon.telegram {
    background: #0088cc;
    color: white;
}

.social-icon.zalo {
    background: #0180c7;
    color: white;
}

/* Author Posts Section */
.author-posts-section {
    margin-top: 3rem;
    background: white;
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid #e9ecef;
}

.author-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.author-post-item {
    background: #f8f9fa;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.author-post-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.author-post-image {
    height: 200px;
    overflow: hidden;
}

.author-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.author-post-item:hover .author-post-image img {
    transform: scale(1.05);
}

.author-post-content {
    padding: 1.5rem;
}

.author-post-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.author-post-title a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.author-post-title a:hover {
    color: #667eea;
    text-decoration: none;
}

.author-post-excerpt {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.author-post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #6c757d;
}

.post-category-link {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.post-category-link:hover {
    text-decoration: none;
    color: white;
    transform: scale(1.05);
}

/* Contact CTA Section */
.author-contact-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    margin-top: 3rem;
    position: relative;
    overflow: hidden;
}

.author-contact-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.1)"><polygon points="0,0 1000,100 0,100"/></svg>');
    background-size: cover;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    color: white;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .author-profile-header {
        padding: 2rem 1rem;
    }
    
    .author-profile-name {
        font-size: 2rem;
    }
    
    .author-profile-title {
        font-size: 1.1rem;
    }
    
    .author-content {
        padding: 1rem;
    }
    
    .author-section {
        padding: 1.5rem;
    }
    
    .author-quick-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .specializations-grid,
    .achievements-list,
    .social-links-grid {
        grid-template-columns: 1fr;
    }
    
    .author-posts-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 200px;
    }
}

@media (max-width: 480px) {
    .profile-avatar-img {
        width: 120px;
        height: 120px;
    }
    
    .author-profile-name {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .author-quick-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}