:root{--aquatic-blue: #0ea5e9;--aquatic-teal: #14b8a6;--aquatic-glow: rgba(20, 184, 166, .2)}[data-theme=light]{--aquatic-blue: #0284c7;--aquatic-teal: #0d9488;--aquatic-glow: rgba(13, 148, 136, .15)}html,body{overflow-x:hidden;max-width:100%}.page-main{padding-top:100px;width:100%;max-width:100%;overflow-x:hidden}.page-header{text-align:center;margin-bottom:40px}.page-title{font-size:clamp(1.6rem,4vw,3rem);font-weight:800;margin-bottom:10px;line-height:1.3}.page-desc{color:var(--text-secondary);font-size:1.1rem}.lang-btn{background:transparent;border:1px solid var(--border);cursor:pointer;background:var(--bg-card);display:inline-flex;align-items:center;justify-content:center;height:36px;padding:0 16px}.lang-btn:hover{background:var(--gold-dim);border-color:var(--gold);color:var(--gold)}.lang-btn-mobile{background:transparent;border:none;cursor:pointer;color:var(--text-secondary);font-family:inherit;font-weight:600;font-size:1.05rem;padding:12px 16px;border-radius:var(--radius-sm);transition:var(--transition);text-align:right;width:100%}.lang-btn-mobile:hover{color:var(--gold);background:var(--gold-dim)}[dir=ltr] .lang-btn-mobile{text-align:left}.centered-calc{max-width:750px;margin:0 auto;width:100%;padding:0 16px;box-sizing:border-box}.tabs-nav{width:100%;max-width:100%}.card{padding:30px;cursor:default;overflow:hidden;box-sizing:border-box;width:100%}.card:hover{transform:none;box-shadow:var(--shadow-card)}.card-title{font-size:1.4rem;font-weight:800;margin-bottom:24px;color:var(--text-primary);border-bottom:1px solid var(--border);padding-bottom:10px}.m-0{margin:0;border:none;padding:0}.form-group{margin-bottom:20px}.form-group label{display:block;font-weight:700;margin-bottom:8px;color:var(--text-secondary)}.form-row{display:flex;gap:20px;flex-wrap:wrap}.form-row .half{flex:1;min-width:200px}input[type=number],input[type=text],select{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-primary);padding:12px 14px;border-radius:var(--radius-sm);font-family:inherit;font-size:.95rem;outline:none;transition:var(--transition);max-width:100%;box-sizing:border-box}input:focus,select:focus{border-color:var(--aquatic-teal);box-shadow:0 0 0 3px var(--aquatic-glow)}.tabs-nav{display:flex;border-bottom:2px solid var(--border);margin-bottom:24px;background:var(--bg-surface);border-radius:var(--radius-sm);overflow-x:auto;overflow-y:hidden;white-space:nowrap;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding-bottom:0;position:relative}.tabs-nav::-webkit-scrollbar{display:none}.tabs-nav::-webkit-scrollbar{height:4px}.tabs-nav::-webkit-scrollbar-thumb{background:var(--aquatic-teal);border-radius:4px}.tab-btn{flex:0 0 auto;background:transparent;border:none;padding:14px 18px;font-weight:800;font-size:.9rem;color:var(--text-secondary);cursor:pointer;position:relative;transition:color .2s ease,background-color .2s ease;touch-action:manipulation;-webkit-tap-highlight-color:transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.tab-btn:hover{color:var(--aquatic-teal)}.tab-btn:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%) scaleX(0);width:60%;height:3px;background:var(--aquatic-teal);border-radius:4px;transition:transform .3s cubic-bezier(.4,0,.2,1)}.tab-btn.active{color:var(--aquatic-teal);background:#14b8a60d}.tab-btn.active:after{transform:translate(-50%) scaleX(1)}.tabs-nav:before,.tabs-nav:after{content:"";position:absolute;top:0;bottom:0;width:30px;z-index:2;pointer-events:none;transition:opacity .3s ease}.tabs-nav:before{left:0;background:linear-gradient(to right,var(--bg-surface),transparent)}.tabs-nav:after{right:0;background:linear-gradient(to left,var(--bg-surface),transparent)}.tab-content{display:none}.tab-content.active{display:block;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.dims-row{display:flex;gap:12px;flex-wrap:wrap}.dims-row .form-group{flex:1;min-width:100px}.res-split{display:flex;justify-content:space-around;gap:10px}.res-split>div{flex:1;background:var(--bg-surface);padding:10px;border-radius:var(--radius-sm);border:1px solid var(--border)}.res-split h3{font-size:.9rem}.warning-banner{background:#eab3081a;border-right:4px solid #eab308;padding:15px;color:var(--text-primary);font-size:.9rem;margin-bottom:20px;border-radius:var(--radius-sm)}[dir=ltr] .warning-banner{border-right:none;border-left:4px solid #eab308}.stock-example{font-size:.85rem;color:var(--text-muted);margin-top:6px}.sto.chat-subtitle{font-size:.75rem;color:var(--text-muted);margin-top:2px}.log-section{margin-top:30px;padding-top:20px;border-top:1px dashed var(--border)}.log-section h4{color:var(--text-secondary);margin-bottom:12px}.log-list{list-style:none;padding:0;margin-bottom:15px;display:flex;flex-direction:column;gap:8px}.log-item{background:var(--bg-surface);border:1px solid var(--border);padding:10px 14px;border-radius:var(--radius-sm);font-size:.85rem;display:flex;justify-content:space-between;align-items:center}.log-date{color:var(--text-muted);font-size:.75rem}.clear-log-btn{background:transparent;border:1px solid #ef4444;color:#ef4444;padding:6px 14px;border-radius:50px;font-size:.8rem;cursor:pointer;transition:var(--transition)}.clear-log-btn:hover{background:#ef4444;color:#fff}.radio-group{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.radio-card{position:relative;background:var(--bg-surface);border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:12px;text-align:center;cursor:pointer;transition:var(--transition);font-weight:600}.radio-card input{position:absolute;opacity:0}.radio-card.active,.radio-card:has(input:checked){background:var(--aquatic-glow);border-color:var(--aquatic-teal);color:var(--aquatic-teal)}.input-with-select{display:flex;gap:10px;width:100%;min-width:0;box-sizing:border-box}.input-with-select input{flex:2;min-width:0}.input-with-select select{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dose-input-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap;width:100%;min-width:0;box-sizing:border-box}.dose-input-group input{width:80px;flex:1;min-width:60px}.dose-input-group select{flex:1.5;min-width:100px}.per-text{color:var(--text-muted);font-weight:600}.calc-btn{width:100%;justify-content:center;background:linear-gradient(135deg,var(--aquatic-blue) 0%,var(--aquatic-teal) 100%);box-shadow:0 8px 24px var(--aquatic-glow);margin-top:10px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.calc-btn:hover{box-shadow:0 16px 40px #14b8a673}.result-box{margin-top:24px;padding:20px;background:#14b8a61a;border:1px dashed var(--aquatic-teal);border-radius:var(--radius-sm);text-align:center;transition:opacity .3s;width:100%;box-sizing:border-box;overflow:hidden}.result-box.hidden{display:none}.result-box h3{margin-bottom:10px;color:var(--text-secondary)}.result-value{font-size:2.2rem;font-weight:900;color:var(--aquatic-teal);margin-bottom:10px}.warning-text{font-size:.85rem;color:#eab308;line-height:1.4}.status-badge{display:inline-block;padding:6px 14px;border-radius:50px;font-weight:800;font-size:.85rem;margin-bottom:12px;letter-spacing:.05em}.status-badge.ideal{background:#22c55e26;color:#22c55e;border:1px solid rgba(34,197,94,.3)}.status-badge.weak{background:#ef444426;color:#ef4444;border:1px solid rgba(239,68,68,.3)}.status-badge.strong{background:#eab30826;color:#eab308;border:1px solid rgba(234,179,8,.3)}.filter-tip{font-size:.9rem;color:var(--text-muted);margin-top:10px}.text-sm{font-size:1.2rem;font-weight:400;color:var(--text-muted);margin-left:4px}.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer;background:var(--bg-surface);padding:14px;border-radius:var(--radius-sm);border:1px solid var(--border);transition:var(--transition)}.checkbox-label:hover{border-color:var(--aquatic-teal)}.checkbox-label input{width:18px;height:18px;accent-color:var(--aquatic-teal)}.weight-breakdown{margin-top:16px;padding-top:16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px;text-align:right}[dir=ltr] .weight-breakdown{text-align:left}.breakdown-item{display:flex;justify-content:space-between;font-size:.9rem}.breakdown-item .label{color:var(--text-secondary)}.breakdown-item .val{font-weight:700;color:var(--text-primary)}.full-width{width:100%}.floating-chat-container{position:fixed;bottom:30px;right:30px;z-index:9999;pointer-events:none}[dir=ltr] .floating-chat-container{right:auto;left:30px}.chat-fab{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--aquatic-blue) 0%,var(--aquatic-teal) 100%);color:#fff;border:none;cursor:pointer;box-shadow:0 8px 24px #14b8a666;display:flex;align-items:center;justify-content:center;transition:transform .3s cubic-bezier(.175,.885,.32,1.275);pointer-events:auto}.chat-fab *{pointer-events:none}.chat-fab:hover{transform:scale(1.1)}.chat-fab.open{transform:scale(0);opacity:0;pointer-events:none}.floating-chat-popup{position:absolute;bottom:0;right:0;width:360px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:0 12px 40px #0000004d;display:flex;flex-direction:column;opacity:0;transform:translateY(20px) scale(.95);pointer-events:none;transition:all .3s cubic-bezier(.175,.885,.32,1.275);transform-origin:bottom right}[dir=ltr] .floating-chat-popup{right:auto;left:0;transform-origin:bottom left}.floating-chat-popup.active{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border);background:var(--bg-surface);border-radius:var(--radius-md) var(--radius-md) 0 0}.chat-header-info{display:flex;align-items:center;gap:12px}.chat-icon-small{font-size:1.5rem;background:var(--bg-card);padding:6px;border-radius:50%}.close-chat-btn{background:transparent;border:none;color:var(--text-muted);font-size:1.5rem;cursor:pointer;line-height:1}.close-chat-btn:hover{color:#ef4444}.chat-window{height:320px;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.chat-bubble{max-width:85%;padding:12px 16px;border-radius:var(--radius-sm);font-size:.95rem;line-height:1.5}.chat-bubble.ai{background:var(--bg-card);border:1px solid var(--border);align-self:flex-start;border-bottom-right-radius:4px}[dir=ltr] .chat-bubble.ai{border-bottom-right-radius:var(--radius-sm);border-bottom-left-radius:4px}.chat-bubble.user{background:linear-gradient(135deg,var(--aquatic-blue) 0%,var(--aquatic-teal) 100%);color:#fff;align-self:flex-end;border-bottom-left-radius:4px}[dir=ltr] .chat-bubble.user{border-bottom-left-radius:var(--radius-sm);border-bottom-right-radius:4px}.welcome-bubble{background:linear-gradient(145deg,var(--bg-card) 0%,var(--bg-surface) 100%);border:1px solid var(--aquatic-teal);max-width:95%!important}.welcome-bubble p{margin:0 0 10px;font-size:.95rem}.welcome-bubble .hint-text{margin:10px 0 0;font-size:.85rem;color:var(--text-secondary);text-align:center}.quick-topics{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0;justify-content:center}.topic-chip{background:linear-gradient(145deg,var(--bg-surface) 0%,var(--bg-card) 100%);border:1px solid var(--border);border-radius:24px;padding:10px 16px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s ease;color:var(--text-primary);box-shadow:0 2px 4px #0000001a;display:flex;align-items:center;gap:6px}.topic-chip:hover{background:var(--aquatic-teal);color:#fff;border-color:var(--aquatic-teal);transform:translateY(-2px);box-shadow:0 4px 8px #00b4d84d}.chat-bubble-wrapper{display:flex;flex-direction:column;max-width:85%;align-self:flex-start}.chat-bubble-actions{display:flex;gap:6px;margin-top:6px;padding-left:4px}.action-btn{background:transparent;border:1px solid var(--border);border-radius:12px;padding:4px 10px;font-size:.75rem;color:var(--text-muted);cursor:pointer;transition:all .2s ease}.action-btn:hover{background:var(--aquatic-teal);color:#fff;border-color:var(--aquatic-teal)}.chat-input-area{display:flex;flex-wrap:wrap;gap:10px;padding:14px 16px;border-top:1px solid var(--border);background:var(--bg-surface);border-radius:0 0 var(--radius-md) var(--radius-md);align-items:center}.chat-input-area input{flex:0 0 100%;max-width:100%;box-sizing:border-box;border-radius:24px;padding:12px 18px;border:1px solid var(--border);background:var(--bg-card);font-size:.95rem;color:var(--text-primary)}.chat-input-area input:focus{outline:none;border-color:var(--aquatic-teal)}.send-btn{width:50px;height:50px;border-radius:50%;border:none;background:var(--aquatic-blue);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);transform:rotate(180deg)}[dir=ltr] .send-btn{transform:rotate(0)}.send-btn:hover{background:var(--aquatic-teal);transform:rotate(180deg) scale(1.05)}[dir=ltr] .send-btn:hover{transform:rotate(0) scale(1.05)}#verbosity{flex:1;padding:10px 12px;border-radius:20px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-primary);font-size:.8rem;cursor:pointer;min-width:80px;height:44px;text-align:center}#verbosity:focus{outline:none;border-color:var(--aquatic-teal)}[data-theme=light] #verbosity{background:#f5f5f5}.chat-context-badge{display:inline-block;background:var(--aquatic-teal);color:#fff;font-size:.7rem;padding:2px 8px;border-radius:10px;margin-top:4px}.typing-indicator span{display:inline-block;width:6px;height:6px;background:var(--text-muted);border-radius:50%;margin:0 2px;animation:blink 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}.shape-selection-row{display:flex;gap:20px;align-items:stretch;margin-bottom:20px;flex-wrap:wrap}.selection-controls{flex:1;display:flex;flex-direction:column;justify-content:center;gap:15px;min-width:200px}.shape-diagram-container{background:var(--bg-surface);border:1px dashed var(--border);border-radius:var(--radius-sm);padding:20px;margin-bottom:20px;display:flex;justify-content:center;align-items:center;min-height:160px}.shape-diagram-container.mini-diagram{flex:1;min-width:200px;margin-bottom:0;min-height:140px}.shape-diagram-container svg{max-width:90%;max-height:140px;overflow:visible;display:block}.stock-tip,.filter-tip,.confidence-note{background:#14b8a614;border-right:4px solid var(--aquatic-teal);padding:14px;margin-top:15px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.95rem;color:var(--text-secondary);line-height:1.6;text-align:right}[dir=ltr] .stock-tip,[dir=ltr] .filter-tip,[dir=ltr] .confidence-note{border-right:none;border-left:4px solid var(--aquatic-teal);border-radius:var(--radius-sm) 0 0 var(--radius-sm);text-align:left}.confidence-note{margin-top:30px;text-align:center;border:1px dashed var(--border);border-right:none;background:transparent}[dir=ltr] .confidence-note{border-left:none}.static-warning{margin-top:15px;padding:12px;background:#eab30826;border-right:3px solid #eab308;color:#eab308;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-weight:600;font-size:.85rem}[dir=ltr] .static-warning{border-right:none;border-left:3px solid #eab308;border-radius:var(--radius-sm) 0 0 var(--radius-sm)}.formula-block{margin:15px 0}.formula-block details{background:#ffffff08;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px}.formula-block summary{cursor:pointer;font-weight:700;color:var(--aquatic-teal);outline:none;-webkit-user-select:none;user-select:none}.formula-block code{display:block;margin-top:10px;padding:10px;background:#000;border-radius:4px;font-family:Consolas,Monaco,monospace;font-size:.9rem;color:#10b981;direction:ltr;text-align:left}.action-bar{display:flex;gap:10px;margin-top:15px;flex-wrap:wrap}.action-btn{flex:1;background:var(--bg-surface);border:1px solid var(--border);color:var(--text-primary);padding:10px 14px;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;font-size:.9rem;display:flex;align-items:center;justify-content:center;gap:6px;transition:var(--transition);touch-action:manipulation;-webkit-tap-highlight-color:transparent}.action-btn:hover{background:var(--aquatic-glow);border-color:var(--aquatic-teal);color:var(--aquatic-teal)}.formula-block{background:#14b8a60d;border-right:3px solid var(--aquatic-teal);padding:12px;border-radius:var(--radius-sm);margin-top:15px;font-family:inherit;font-size:.9rem;color:var(--text-secondary)}[dir=ltr] .formula-block{border-right:none;border-left:3px solid var(--aquatic-teal)}.formula-block details summary{cursor:pointer;font-weight:700;outline:none;color:var(--aquatic-teal)}.formula-block code{display:block;margin-top:8px;background:var(--bg-surface);padding:8px;border-radius:4px;direction:ltr;text-align:left;color:var(--text-primary)}.chat-chips{display:flex;flex-wrap:wrap;gap:8px;padding:4px 0 8px}.chat-chip{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-secondary);padding:6px 14px;border-radius:50px;font-size:.8rem;font-weight:600;cursor:pointer;transition:var(--transition);white-space:nowrap;font-family:inherit}.chat-chip:hover{background:var(--aquatic-glow);border-color:var(--aquatic-teal);color:var(--aquatic-teal);transform:translateY(-1px)}.chat-chip:active{transform:scale(.96)}@media(max-width:900px){.tab-btn{padding:12px 10px;font-size:.85rem}}@media(max-width:600px){.floating-chat-popup{width:calc(100vw - 30px);right:-15px;bottom:70px}[dir=ltr] .floating-chat-popup{right:auto;left:-15px}.centered-calc{padding:0 10px}.card{padding:16px 14px;border-radius:var(--radius-sm)}.tabs-nav{gap:0;margin-left:-14px;margin-right:-14px;border-radius:0;padding-bottom:0}.tab-btn{padding:10px 8px;font-size:.75rem;min-width:auto;white-space:nowrap;letter-spacing:-.2px}.tab-btn:after{width:50%;height:2px}.form-row{flex-direction:column;gap:10px}.form-row .half{min-width:100%;width:100%}.dims-row,.res-split{flex-direction:column}.input-with-select{gap:6px}.input-with-select select{flex:0 0 auto;max-width:42%}.input-with-select input{flex:1;min-width:0}.dose-input-group{gap:6px}.dose-input-group select{min-width:90px;max-width:100%}.radio-group{grid-template-columns:1fr}.result-value{font-size:1.8rem}.pct-presets{gap:6px}.pct-preset{padding:5px 10px;font-size:.8rem}.wchange-pct-row{gap:8px}.pct-display{min-width:40px;font-size:1rem}.action-bar{flex-wrap:wrap;gap:8px}.action-btn{flex:1;justify-content:center;min-width:0}}.wchange-pct-row{display:flex;align-items:center;gap:12px;margin-bottom:12px;direction:ltr}.pct-slider{flex:1;-webkit-appearance:none;appearance:none;height:6px;border-radius:3px;background:linear-gradient(to right,var(--aquatic-teal) 0%,var(--aquatic-teal) 25%,var(--border) 25%);outline:none;cursor:pointer;padding:0;border:none;box-shadow:none;direction:ltr;writing-mode:horizontal-tb}.pct-slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--aquatic-teal);cursor:pointer;box-shadow:0 0 0 3px var(--aquatic-glow);transition:box-shadow .2s ease}.pct-slider::-webkit-slider-thumb:hover{box-shadow:0 0 0 5px var(--aquatic-glow)}.pct-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--aquatic-teal);cursor:pointer;border:none;box-shadow:0 0 0 3px var(--aquatic-glow)}.pct-display{min-width:48px;text-align:center;font-size:1.2rem;font-weight:900;color:var(--aquatic-teal);background:var(--aquatic-glow);border-radius:var(--radius-sm);padding:4px 8px}.pct-presets{display:flex;gap:8px;flex-wrap:wrap}.pct-preset{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-secondary);padding:6px 14px;border-radius:50px;font-size:.85rem;font-weight:700;cursor:pointer;transition:var(--transition);font-family:inherit;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.pct-preset:hover,.pct-preset.active{background:var(--aquatic-glow);border-color:var(--aquatic-teal);color:var(--aquatic-teal)}