.input-group-custom{margin-bottom:12px}.input-label{font-weight:500;color:#4a5568;margin-bottom:8px;display:flex;align-items:center;gap:8px;font-size:.95rem;position:relative}.tooltip-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:#667eea;color:#fff;font-size:.7rem;cursor:help;margin-left:5px;position:relative}.tooltip-icon:hover .tooltip-text{visibility:visible;opacity:1}.tooltip-text{visibility:hidden;opacity:0;position:absolute;z-index:1000;bottom:125%;left:50%;transform:translateX(-50%);background-color:#2d3748;color:#fff;text-align:center;padding:8px 12px;border-radius:8px;font-size:.85rem;white-space:nowrap;transition:opacity .3s;box-shadow:0 4px 6px rgba(0,0,0,.1);font-weight:400;min-width:200px}.tooltip-text::after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:#2d3748 transparent transparent transparent}.input-wrapper{position:relative}.form-input,.form-select{width:100%;padding:10px 12px;border:2px solid #48bb78;border-radius:12px;font-size:1rem;font-family:'Roboto Mono',monospace;transition:all .3s ease;background:#f0fff4}.form-input:focus,.form-select:focus{outline:none;border-color:#38a169;box-shadow:0 0 0 4px rgba(72,187,120,.2);transform:translateY(-2px)}.input-range{font-size:.85rem;color:#718096;margin-top:4px}.result-section{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:20px;padding:30px;color:#fff;text-align:center;margin-bottom:20px;box-shadow:0 8px 32px rgba(102,126,234,.3)}.result-label{font-size:1rem;font-weight:500;margin-bottom:10px;opacity:.9}.result-value{font-family:'Roboto Mono',monospace;font-size:3rem;font-weight:700;margin-bottom:30px;animation:pulse .5s ease}.result-details{background:#f7fafc;padding:20px;border-radius:12px;margin-top:20px}.result-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #e2e8f0}.result-item:last-child{border-bottom:none}.result-item-label{font-size:.95rem;color:#4a5568;display:flex;align-items:center;gap:8px}.result-item-value{font-family:'Roboto Mono',monospace;font-weight:600;color:#2d3748;font-size:1.1rem}.status-badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:.85rem;font-weight:600;margin-left:8px}.status-optimal{background:#c6f6d5;color:#22543d}.status-warning{background:#fef3c7;color:#78350f}.status-danger{background:#fecaca;color:#7f1d1d}.chart-container{position:relative;height:300px;margin:20px 0}.spinner{display:none}.spinner.active{display:inline-block}.warning-box{background:#fef3c7;border-left:4px solid #f59e0b;padding:15px 20px;border-radius:8px;margin-top:20px}.warning-box h4{color:#92400e;font-size:1.1rem;margin-bottom:10px;display:flex;align-items:center;gap:8px}.warning-box ul{margin:0;padding-left:20px}.warning-box li{color:#78350f;margin-bottom:8px;line-height:1.6}@keyframes fadeInDown{from{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}@media(max-width:992px){.page-header h1{font-size:2.5rem}}@media(max-width:768px){.page-header h1{font-size:2rem}.result-value{font-size:2rem}.glass-card{padding:20px}.btn-custom{width:100%}}@media(max-width:480px){.page-header h1{font-size:1.5rem}.main-container{padding:0 10px}}.mode-selector{display:flex;justify-content:center;gap:0;margin:30px auto 40px;max-width:600px;background:#fff;border-radius:15px;padding:8px;box-shadow:0 4px 16px rgba(0,0,0,.1)}.mode-btn{flex:1;padding:15px 20px;background:transparent;border:none;border-radius:10px;font-size:1rem;font-weight:600;color:#718096;cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:8px;position:relative}.mode-btn i{font-size:1.5rem;transition:all .3s ease}.mode-btn .mode-desc{font-size:.75rem;font-weight:400;opacity:.7}.mode-btn:hover{color:#667eea;transform:translateY(-2px)}.mode-btn.active{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;box-shadow:0 4px 12px rgba(102,126,234,.3)}.mode-btn.active i{transform:scale(1.1)}.mode-btn.active .mode-desc{opacity:1}.card{transition:all .3s ease}.card:hover{transform:translateY(-5px);box-shadow:0 8px 20px rgba(0,0,0,.15)}.piping-diagram{background:#f8f9fa;border:1px solid #e0e0e0;border-radius:8px;padding:20px;font-family:'Courier New',Consolas,monospace;font-size:14px;line-height:1.5;overflow-x:auto;white-space:pre}.piping-diagram .main-pipe{color:#2563eb;font-weight:bold}.piping-diagram .branch-pipe{color:#059669}.piping-diagram .fixture{color:#7c3aed}.piping-diagram .label{color:#dc2626;font-weight:bold}.error-warning{background:#fef2f2;border-left:4px solid #dc2626;padding:12px 16px;border-radius:8px;margin-bottom:10px;animation:slideIn .3s ease}.error-warning .warning-title{color:#991b1b;font-weight:600;margin-bottom:5px;display:flex;align-items:center;gap:8px}.error-warning .warning-content{color:#7f1d1d;font-size:.95rem;line-height:1.5}.error-warning.warning-level{background:#fffbeb;border-left-color:#f59e0b}.error-warning.warning-level .warning-title{color:#92400e}.error-warning.warning-level .warning-content{color:#78350f}@keyframes slideIn{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:translateX(0)}}