.project-card{background:var(--bg-primary);border-radius:15px;overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease;border:1px solid var(--border-color);height:100%;display:flex;flex-direction:column}.project-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.project-image{position:relative;height:200px;overflow:hidden}.project-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.project-card:hover .project-image img{transform:scale(1.05)}.project-image .badge{position:absolute;top:10px;right:10px;font-size:.75rem;padding:.25rem .5rem}.project-content{padding:1.5rem;flex:1;display:flex;flex-direction:column}.project-title{font-size:1.25rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.project-description{color:var(--text-secondary);margin-bottom:1rem;flex:1;font-size:.9rem;line-height:1.5}.project-technologies{margin-bottom:1rem;display:flex;flex-wrap:wrap;gap:.5rem}.tech-tag{background:var(--bg-tertiary);color:var(--text-secondary);padding:.25rem .5rem;border-radius:15px;font-size:.75rem;font-weight:500}.project-links{display:flex;gap:.5rem;flex-wrap:wrap}.filter-section{background:var(--bg-secondary);border-radius:15px;padding:2rem;border:1px solid var(--border-color)}.filter-container{text-align:center}.filter-label{font-weight:600;margin-bottom:1rem;color:var(--text-primary)}.filter-buttons{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}.filter-btn{background:var(--bg-primary);border:2px solid var(--border-color);border-radius:25px;padding:.5rem 1rem;font-size:.9rem;font-weight:500;color:var(--text-primary);cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem}.filter-btn:hover{border-color:var(--accent-primary);background:var(--accent-primary);color:#fff;transform:translateY(-2px)}.filter-btn.active{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.filter-btn .badge{background:#fff3;color:#fff;border-radius:10px;padding:.125rem .375rem;font-size:.7rem;min-width:20px;text-align:center}.filter-btn:not(.active) .badge{background:var(--bg-tertiary);color:var(--text-secondary)}@media (max-width: 768px){.filter-buttons{justify-content:center}.filter-btn{font-size:.8rem;padding:.375rem .75rem}.project-content{padding:1rem}.project-title{font-size:1.1rem}.project-description{font-size:.85rem}}.project-section{background:var(--bg-primary);border-radius:15px;padding:2rem;margin-bottom:3rem;border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.project-badges .badge{font-size:.9rem;padding:.5rem 1rem;margin:.25rem}.feature-card{transition:transform .3s ease,box-shadow .3s ease;border:1px solid var(--border-color)}.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}.tech-stack{background:var(--bg-secondary);padding:1.5rem;border-radius:10px;margin-bottom:2rem}.approach-list{list-style:none;padding:0}.approach-list li{padding:1rem 0;border-bottom:1px solid var(--border-color)}.approach-list li:last-child{border-bottom:none}.challenge-solution-card{background:var(--bg-secondary);border-radius:10px;padding:1.5rem;margin-bottom:1.5rem;border-left:4px solid var(--accent-primary)}.challenge-title{color:var(--accent-primary);font-weight:600;margin-bottom:.5rem}.challenge-desc{font-style:italic;margin-bottom:.5rem;color:var(--text-secondary)}.solution-desc{color:var(--text-primary)}.impact-stats{background:var(--bg-secondary);border-radius:15px;padding:2rem;margin-bottom:2rem}.stat-number{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.stat-label{color:var(--text-secondary);font-size:.9rem}.demo-container{background:var(--bg-secondary);border-radius:15px;padding:2rem;border:1px solid var(--border-color)}.case-study-cta{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary))!important;transition:transform .3s ease}.case-study-cta:hover{transform:translateY(-3px)}.project-navigation{border-top:2px solid var(--border-color);padding-top:2rem;margin-top:3rem}@media (max-width: 576px){.project-links{flex-direction:column}.project-links .btn{width:100%;text-align:center}.project-section{padding:1.5rem;margin-bottom:2rem}.stat-number{font-size:2rem}.feature-card{margin-bottom:1rem}}