*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:#f5f5f5;color:#333}.deck-builder-app{max-width:1200px;margin:0 auto;padding:20px}.app-header{text-align:center;margin-bottom:40px}.app-header h1{font-size:2.5rem;margin-bottom:10px;color:#2c3e50}.app-header h2{font-size:1.5rem;color:#7f8c8d}.builder-form{background:#fff;padding:30px;border-radius:10px;box-shadow:0 2px 10px #0000001a;margin-bottom:30px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600}.form-control{width:100%;padding:10px;border:1px solid #ddd;border-radius:5px;font-size:16px}.element-checkboxes{display:flex;gap:15px;flex-wrap:wrap}.element-checkboxes label{display:flex;align-items:center;gap:5px;cursor:pointer}.build-button{background:#3498db;color:#fff;border:none;padding:15px 30px;font-size:18px;border-radius:5px;cursor:pointer;transition:background .3s}.build-button:hover{background:#2980b9}.deck-results{background:#fff;padding:30px;border-radius:10px;box-shadow:0 2px 10px #0000001a}.deck-results.hidden{display:none}.deck-stats{margin-bottom:20px}.deck-stats p{margin-bottom:10px}#deck-list ul{list-style-type:none;column-count:2;column-gap:20px}#deck-list li{padding:5px 0;border-bottom:1px solid #eee}:root{--color-primary: #FFD700;--color-secondary: #b17a2d;--color-accent: #8d7459;--color-bg-primary: #1a1a1a;--color-bg-secondary: #2a2a2a;--color-bg-tertiary: #333;--color-text-primary: #ffffff;--color-text-secondary: #cccccc;--color-text-muted: rgba(255, 255, 255, .7);--color-water: #3498db;--color-fire: #e74c3c;--color-earth: #2ecc71;--color-air: #ecf0f1;--color-void: #9b59b6;--color-success: #2ecc71;--color-error: #e74c3c;--color-warning: #f39c12;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .1);--shadow-md: 0 4px 8px rgba(0, 0, 0, .2);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .3)}*{box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--color-bg-primary);color:var(--color-text-primary);margin:0;padding:0;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:var(--spacing-lg)}.card{background:linear-gradient(145deg,var(--color-bg-secondary),var(--color-bg-tertiary));border-radius:var(--radius-md);padding:var(--spacing-lg);margin:var(--spacing-md) 0;box-shadow:var(--shadow-md);border:1px solid rgba(255,255,255,.1)}.btn{background-color:var(--color-secondary);color:var(--color-text-primary);border:none;padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;font-weight:500;transition:all .2s ease;text-decoration:none;display:inline-block}.btn:hover{background-color:#c68d3f;transform:translateY(-1px);box-shadow:var(--shadow-sm)}.btn:active{transform:translateY(0)}.btn-primary{background-color:var(--color-primary);color:var(--color-bg-primary)}.btn-primary:hover{background-color:#ffed4a}.form-control{background-color:var(--color-bg-tertiary);color:var(--color-text-primary);border:1px solid rgba(255,255,255,.2);padding:var(--spacing-sm);border-radius:var(--radius-sm);font-size:1rem;width:100%;transition:border-color .2s ease}.form-control:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #ffd70033}.form-group{margin-bottom:var(--spacing-md)}.form-label{display:block;margin-bottom:var(--spacing-xs);font-weight:500;color:var(--color-text-secondary)}.grid{display:grid;gap:var(--spacing-md)}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.element-badge{display:inline-block;width:16px;height:16px;border-radius:50%;margin-right:var(--spacing-xs);border:1px solid rgba(255,255,255,.3)}.element-water{background-color:var(--color-water)}.element-fire{background-color:var(--color-fire)}.element-earth{background-color:var(--color-earth)}.element-air{background-color:var(--color-air)}.element-void{background-color:var(--color-void)}.loading{display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl);color:var(--color-text-muted)}.loading:after{content:"";width:24px;height:24px;border:2px solid var(--color-bg-tertiary);border-top:2px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite;margin-left:var(--spacing-sm)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.hidden{display:none!important}.text-center{text-align:center}.text-success{color:var(--color-success)}.text-error{color:var(--color-error)}.text-warning{color:var(--color-warning)}.fade-in{animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.container{padding:var(--spacing-md)}.grid-2,.grid-3{grid-template-columns:1fr}}