.portfolio-bg{position:relative;background:linear-gradient(135deg,#0a0a0f,#1a1a2e 50%,#16213e)}.portfolio-bg:before{background:radial-gradient(circle at 20% 30%,rgba(59,130,246,.15) 0,transparent 50%),radial-gradient(circle at 80% 70%,rgba(139,92,246,.12) 0,transparent 50%),radial-gradient(circle at 50% 20%,rgba(34,197,94,.08) 0,transparent 40%);animation:gradient-shift 8s ease-in-out infinite}.portfolio-bg:after,.portfolio-bg:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none}.portfolio-bg:after{background-image:linear-gradient(45deg,rgba(59,130,246,.1) 1px,transparent 0),linear-gradient(-45deg,rgba(139,92,246,.08) 1px,transparent 0);background-size:60px 60px,80px 80px;animation:grid-move 20s linear infinite}@keyframes gradient-shift{0%,to{transform:scale(1) rotate(0deg);opacity:1}50%{transform:scale(1.1) rotate(2deg);opacity:.8}}@keyframes grid-move{0%{transform:translate(0)}to{transform:translate(60px,60px)}}.glass-card{background:rgba(30,41,59,.4);backdrop-filter:blur(12px);border:1px solid rgba(59,130,246,.2);position:relative;transition:all .3s ease}.glass-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.6),transparent);opacity:0;transition:opacity .3s ease}.glass-card:hover{background:rgba(30,41,59,.6);border-color:rgba(59,130,246,.4);transform:translateY(-4px);box-shadow:0 10px 40px rgba(59,130,246,.1)}.glass-card:hover:before{opacity:1}.glow-accent{box-shadow:0 0 20px rgba(59,130,246,.3),0 0 40px rgba(59,130,246,.1),inset 0 1px 0 rgba(255,255,255,.1);animation:enhanced-pulse 3s ease-in-out infinite}@keyframes enhanced-pulse{0%,to{box-shadow:0 0 20px rgba(59,130,246,.3),0 0 40px rgba(59,130,246,.1),inset 0 1px 0 rgba(255,255,255,.1)}50%{box-shadow:0 0 30px rgba(59,130,246,.4),0 0 60px rgba(59,130,246,.2),inset 0 1px 0 rgba(255,255,255,.2)}}