:root{--primary-color:#2c3e50;--secondary-color:#3498db;--accent-color:#e74c3c;--light-bg:#f8f9fa;--dark-text:#2c3e50;--light-text:#ecf0f1}img{max-width:100%}.btn-primary{background-color:var(--secondary-color);border-color:var(--secondary-color)}.btn-outline-primary{color:var(--secondary-color);border-color:var(--secondary-color)}.btn-outline-primary:hover{background-color:var(--secondary-color);color:#fff}.featured-card{border-radius:10px;overflow:hidden;border:none;box-shadow:0 5px 15px rgb(0 0 0 / .1);transition:transform 0.3s ease}.featured-card:hover{transform:translateY(-5px)}.featured-card .card-img-overlay{background:linear-gradient(to top,rgb(0 0 0 / .8),transparent);display:flex;flex-direction:column;justify-content:flex-end}.discussion-card{border-radius:8px;border:none;box-shadow:0 2px 10px rgb(0 0 0 / .05);margin-bottom:15px;transition:all 0.3s ease}.discussion-card:hover{box-shadow:0 5px 15px rgb(0 0 0 / .1)}.badge-tag{background-color:var(--light-bg);color:var(--dark-text);font-weight:400;margin-right:5px}.user-avatar{width:40px;height:40px;max-width:50px;border-radius:50%;object-fit:cover}.stats-card{background-color:var(--light-bg);border-radius:10px;padding:20px;margin-bottom:20px}.stats-number{font-size:2rem;font-weight:700;color:var(--secondary-color)}footer{background-color:var(--primary-color);color:var(--light-text);padding:40px 0}.footer-links a{color:var(--light-text);text-decoration:none;display:block;margin-bottom:8px}.footer-links a:hover{color:var(--secondary-color)}.social-icon{color:var(--light-text);font-size:1.5rem;margin-right:15px}.social-icon:hover{color:var(--secondary-color)}.category-card{background-color:#fff;border-radius:10px;padding:20px;box-shadow:0 4px 15px rgb(0 0 0 / .05);transition:all 0.3s ease}.category-card:hover{transform:translateY(-3px)}.category-icon{font-size:2rem;color:var(--secondary-color);margin-right:15px}.category-header{background-color:var(--primary-color);color:#fff;padding:3rem 0;margin-bottom:2rem}.breadcrumb{background-color:#fff0;padding:0}.breadcrumb-item a{color:var(--light-text);text-decoration:none}.breadcrumb-item.active{color:var(--secondary-color)}.breadcrumb-item+.breadcrumb-item::before{color:var(--light-text)}.thread-filter{background-color:var(--light-bg);border-radius:8px;padding:1rem;margin-bottom:1.5rem}.thread-card{border-left:4px solid #fff0;transition:all 0.3s ease}.thread-card:hover{border-left-color:var(--secondary-color)}.thread-sticky{background-color:rgb(52 152 219 / .05);border-left-color:var(--secondary-color)}.thread-answered{background-color:rgb(46 204 113 / .05);border-left-color:#2ecc71}.thread-hot{background-color:rgb(231 76 60 / .05);border-left-color:var(--accent-color)}.badge-category{background-color:var(--secondary-color);color:#fff}.category-stats{background-color:var(--light-bg);border-radius:10px;padding:1.5rem}.subcategory-card{border:none;border-radius:8px;transition:all 0.3s ease;margin-bottom:1rem}.subcategory-card:hover{box-shadow:0 5px 15px rgb(0 0 0 / .1)}.mention{font-weight:700;color:#0d6efd;text-decoration:none}.mention:hover{text-decoration:underline}.discussion-container{background:#fff;padding:30px;border-radius:10px;box-shadow:0 5px 15px rgb(0 0 0 / .05)}.post-header{margin-bottom:15px}.post-content{margin-top:10px}.user-avatar{width:50px;height:50px;border-radius:50%;object-fit:cover}.meta-text{color:gray;font-size:.9rem}.post-actions{margin-top:15px}.reply-box textarea{resize:none}.like-btn{cursor:pointer;color:var(--secondary-color)}.reply-item{border-top:1px solid #eee;padding-top:20px;margin-top:20px}