:root{--primary: #667eea;--primary-dark: #764ba2;--primary-light: #f0f4ff;--card-bg: #ffffff;--border: #e5e7eb;--text-primary: #1f2937;--text-secondary: #6b7280;--header-bg: #f8f9fa;--code-bg: #f3f4f6;--success: #10b981;--success-light: #d1fae5;--warning: #f59e0b;--warning-light: #fef3c7;--error: #ef4444;--error-light: #fee2e2;--info: #3b82f6;--info-light: #dbeafe}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--text-primary)}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{background:#fffffffa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 20px #0000001a;padding:1rem 2rem;position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;max-width:1800px;margin:0 auto;gap:2rem}.header-left{flex:0 0 auto}.logo{display:flex;align-items:center;gap:1rem;color:var(--primary)}.logo svg{filter:drop-shadow(0 2px 4px rgba(102,126,234,.3))}.logo h1{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.logo p{font-size:.75rem;color:#666}.header-center{flex:1;display:flex;justify-content:center}.power-display{display:flex;align-items:center;gap:2rem;background:linear-gradient(135deg,#667eea,#764ba2);padding:1rem 2rem;border-radius:12px;box-shadow:0 4px 20px #667eea4d}.power-item{display:flex;flex-direction:column;align-items:center;gap:.25rem}.power-label{font-size:.75rem;color:#fffc;text-transform:uppercase;letter-spacing:.5px;font-weight:600}.power-value{font-size:1.5rem;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}.power-value.warning{color:#fee;animation:pulse 2s infinite}.power-divider{width:1px;height:40px;background:#ffffff4d}@keyframes 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ease;font-size:.9rem;font-weight:600;color:#555;white-space:nowrap}.nav-tab:hover{background:#fff;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.nav-tab.active{background:#fff;color:var(--tab-color);box-shadow:0 4px 20px #00000026;transform:translateY(-2px)}.app-main{flex:1;padding:2rem;max-width:1800px;margin:0 auto;width:100%}.tab-content{background:#fffffffa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:2rem;box-shadow:0 8px 32px #0000001a;min-height:600px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tab-header{margin-bottom:2rem}.tab-header h2{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.tab-header p{color:var(--text-secondary)}.app-footer{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem 2rem;margin-top:2rem}.footer-content{display:flex;justify-content:space-between;align-items:center;max-width:1800px;margin:0 auto;font-size:.85rem;color:#666}.footer-left{display:flex;gap:1rem;align-items:center}.footer-divider{color:#ddd}.card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 2px 8px #0000000d;transition:all .3s ease}.card:hover{box-shadow:0 4px 16px #0000001a;transform:translateY(-2px)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:1rem;border-bottom:2px solid #f0f0f0}.card-title{font-size:1.25rem;font-weight:700;color:#333;display:flex;align-items:center;gap:.5rem}.button{padding:.75rem 1.5rem;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem;font-size:.9rem}.button-primary,.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 12px #667eea4d;border:none;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem;font-size:.9rem}.button-primary:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.button-primary:disabled,.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.button-secondary,.btn-secondary{background:#fff;color:#667eea;border:2px solid #667eea;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem;font-size:.9rem}.button-secondary:hover,.btn-secondary:hover{background:#667eea;color:#fff}.input{padding:.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:all .3s ease;width:100%}.input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.select{padding:.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;background:#fff;cursor:pointer}.select:focus{outline:none;border-color:#667eea}.alert{padding:1rem;border-radius:8px;display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.alert-success{background:#d1fae5;color:#065f46;border-left:4px solid #10b981}.alert-warning{background:#fef3c7;color:#92400e;border-left:4px solid #f59e0b}.alert-error{background:#fee2e2;color:#991b1b;border-left:4px solid #ef4444}.alert-info{background:#dbeafe;color:#1e40af;border-left:4px solid #3b82f6}.success-card{padding:1.5rem;border-radius:8px;margin-bottom:1.5rem;display:flex;align-items:flex-start;gap:1rem;background:var(--success-light);border:1px solid var(--success);color:#065f46}.error-card{padding:1.5rem;border-radius:8px;margin-bottom:1.5rem;display:flex;align-items:flex-start;gap:1rem;background:var(--error-light);border:1px solid var(--error);color:#991b1b}.warning-card{padding:1.5rem;border-radius:8px;margin-bottom:1.5rem;display:flex;align-items:flex-start;gap:1rem;background:var(--warning-light);border:1px solid var(--warning);color:#92400e}.info-card{padding:1.5rem;border-radius:8px;margin-bottom:1.5rem;display:flex;align-items:flex-start;gap:1rem;background:var(--info-light);border:1px solid var(--info);color:#1e40af}.grid{display:grid;gap:1.5rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 1200px){.header-content{flex-wrap:wrap;gap:1rem}.header-center{order:3;flex-basis:100%}.power-display{width:100%;justify-content:space-around}}@media (max-width: 1024px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.app-header,.app-nav,.app-main,.tab-content{padding:1rem}.power-display{flex-direction:column;gap:1rem;padding:1rem}.power-divider{width:80%;height:1px}.nav-tab span{display:none}.footer-content{flex-direction:column;gap:.5rem;text-align:center}}@media (max-width: 640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}