:root{--accent:#00d1c1;--bg-app:#050510;--bg-card:#0d0d1f;--bg-input:#111128;--text-primary:#fff;--text-secondary:#88a;--text-muted:#557;--cyan:#00f3ff;--purple:#bc13fe;--green:#10b981;--red:#f43f5e;--amber:#f59e0b;--border:#ffffff14;--radius:12px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-app);color:var(--text-primary);min-height:100vh;font-family:Inter,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.main-container{max-width:1200px;margin:0 auto;padding:24px}.page-header{margin-bottom:1.5rem}.breadcrumb{color:var(--text-muted);margin-bottom:.5rem;font-size:.79rem}.page-title{margin-bottom:.25rem;font-size:2rem;font-weight:800}.page-sub{color:var(--text-secondary);font-size:.92rem}.tab-nav{border-bottom:1px solid var(--border);margin-bottom:24px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:10px 22px;font-family:inherit;font-size:.9rem;transition:all .2s}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.tab-content{display:none}.tab-content.active{display:block}.calc-layout{grid-template-columns:360px 1fr;align-items:start;gap:20px;display:grid}@media (width<=960px){.calc-layout{grid-template-columns:minmax(0,1fr);overflow:hidden}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.input-card{border-left:3px solid var(--cyan)}.result-card{border-left:3px solid var(--purple)}.card-title{color:var(--text-primary);margin-bottom:16px;font-size:1rem;font-weight:700}.card-sub{color:var(--text-secondary);margin-bottom:16px;font-size:.83rem}.form-group{margin-bottom:14px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:.82rem;font-weight:500;display:block}.form-label-hint{color:var(--text-muted);font-size:.75rem;font-weight:400}.form-input{background:var(--bg-input);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:8px;padding:9px 12px;font-family:inherit;font-size:.92rem;transition:border-color .2s}.form-input:focus{border-color:var(--accent);outline:none}.form-hint{color:var(--text-muted);margin-top:4px;font-size:.77rem}.ht-row{align-items:center;gap:6px;display:flex}.ht-row input{width:68px}.ht-row .ht-unit-label{color:var(--text-secondary);font-size:.82rem}.units-toggle{background:var(--bg-input);border-radius:8px;flex-shrink:0;gap:3px;padding:3px;display:flex}.units-toggle 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1fr;align-items:center;gap:6px;display:grid}.pace-sep{text-align:center;color:var(--text-secondary);font-size:1.1rem;font-weight:700}.btn-calculate{background:linear-gradient(135deg, var(--cyan), var(--purple));color:#000;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:8px;padding:11px;font-family:inherit;font-size:.95rem;font-weight:700;transition:opacity .2s}.btn-calculate:hover{opacity:.88}.hero-result{text-align:center;border-radius:var(--radius);background:linear-gradient(135deg,#00d1c114,#00f3ff0a);border:1px solid #00d1c133;margin-bottom:16px;padding:22px}.hero-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;font-size:.73rem}.hero-value{color:var(--accent);font-size:2.4rem;font-weight:800;line-height:1.1}.hero-sub{color:var(--text-secondary);margin-top:6px;font-size:.85rem}.inner-tab-nav{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.inner-tab-btn{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:20px;padding:5px 14px;font-family:inherit;font-size:.78rem;font-weight:500;transition:all .2s}.inner-tab-btn:hover{color:var(--text-primary);border-color:#fff3}.inner-tab-btn.active{border-color:var(--accent);color:var(--accent);background:#00d1c126;font-weight:700}.inner-tab-content{display:none}.inner-tab-content.active{display:block}.stat-grid-8{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:16px;display:grid}@media (width<=700px){.stat-grid-8{grid-template-columns:repeat(2,1fr)}}.stat-card{border:1px solid var(--border);border-left:3px solid var(--purple);background:#ffffff06;border-radius:10px;padding:11px 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0;display:flex;overflow:hidden}.fuel-seg{color:#fff;white-space:nowrap;justify-content:center;align-items:center;font-size:.78rem;font-weight:700;transition:width .4s;display:flex;overflow:hidden}.fuel-carb{background:linear-gradient(135deg,#f59e0b,#d97706)}.fuel-fat{background:linear-gradient(135deg,#10b981,#059669)}.fuel-bar-label{color:var(--text-secondary);font-size:.78rem;font-weight:600}.fuel-stats-row{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px;display:grid}.fuel-stat-cell{border:1px solid var(--border);text-align:center;background:#ffffff06;border-radius:8px;padding:10px 12px}.fuel-stat-label{margin-bottom:4px;font-size:.75rem;font-weight:600}.fuel-stat-val{color:var(--text-primary);font-size:1.1rem;font-weight:800}.fuel-stat-sub{color:var(--text-muted);margin-top:2px;font-size:.68rem}.fuel-tip{color:var(--text-secondary);border:1px solid var(--border);background:#ffffff06;border-radius:8px;margin-top:4px;padding:10px 12px;font-size:.83rem;line-height:1.5}.fuel-depletion{color:#fcd34d;background:#f59e0b14;border:1px solid #f59e0b40;border-radius:8px;margin-top:8px;padding:8px 12px;font-size:.8rem}.zone-strip{border-radius:8px;height:44px;margin:12px 0;display:flex;overflow:hidden}.zone-seg{color:#ffffffd9;opacity:.35;cursor:default;flex-direction:column;flex:1;justify-content:center;align-items:center;font-size:.72rem;font-weight:700;line-height:1.2;transition:opacity .3s;display:flex}.zone-seg:first-child{background:#3b82f6}.zone-seg:nth-child(2){background:#00d1c1}.zone-seg:nth-child(3){background:#10b981}.zone-seg:nth-child(4){background:#f59e0b}.zone-seg:nth-child(5){background:#f43f5e}.zone-seg.zone-active{opacity:1;box-shadow:inset 0 0 0 2px #ffffff80}.zone-badge{border:1px solid;border-radius:20px;margin-bottom:8px;padding:5px 14px;font-size:.85rem;font-weight:700;display:inline-block}.zone-hr-text{color:var(--text-secondary);margin-bottom:10px;font-size:.8rem}.zone-tip{color:var(--text-secondary);background:#ffffff06;border-radius:8px;margin-bottom:12px;padding:10px 12px;font-size:.83rem;line-height:1.55}.food-equiv-grid{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}@media (width<=600px){.food-equiv-grid{grid-template-columns:repeat(3,1fr)}}.food-equiv-card{text-align:center;background:#fbbf2412;border:1px solid #fbbf2433;border-radius:8px;padding:8px 4px}.food-equiv-icon{margin-bottom:2px;font-size:1.4rem;display:block}.food-equiv-count{color:#fbbf24;font-size:.88rem;font-weight:700;display:block}.food-equiv-name{color:var(--text-muted);margin-top:2px;font-size:.64rem;display:block}.action-bar{border-top:1px solid var(--border);flex-wrap:wrap;gap:8px;margin-top:18px;padding-top:16px;display:flex}.action-btn{border:1px solid 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0;display:flex}.fuel-guide-row:last-child{border-bottom:none}.fuel-guide-icon{flex-shrink:0;margin-top:1px;font-size:1.3rem}.fuel-guide-row>div{color:var(--text-secondary);font-size:.86rem;line-height:1.55}.fuel-guide-row strong{color:var(--text-primary)}.faq-section{max-width:1200px;margin:48px auto 0;padding:0 24px 48px}.faq-section h2{margin-bottom:20px;font-size:1.5rem}.faq-item{border:1px solid var(--border);border-radius:8px;margin-bottom:8px;overflow:hidden}.faq-q{cursor:pointer;justify-content:space-between;align-items:center;padding:13px 18px;font-size:.93rem;font-weight:500;display:flex}.faq-q span{color:var(--accent);flex-shrink:0;font-size:1.1rem}.faq-item.open .faq-q span{transform:rotate(45deg)}.faq-a{color:var(--text-secondary);padding:0 18px 13px;font-size:.87rem;line-height:1.6;display:none}.faq-item.open .faq-a{display:block}.related-section{max-width:1200px;margin:0 auto;padding:0 24px 48px}.related-section h2{margin-bottom:16px;font-size:1.3rem}.related-grid{grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:12px;display:grid}.related-card{background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);border-radius:8px;padding:13px;font-size:.87rem;transition:all .2s}.related-card:hover{border-color:var(--accent);color:var(--text-primary)}@media (width<=768px){.main-container{padding:16px}.page-title{font-size:1.6rem}.tab-btn{padding:8px 12px;font-size:.82rem}.hero-value{font-size:1.9rem}}.formula-pills2{flex-wrap:wrap;gap:10px;display:flex}.fp2{background:#bc13fe14;border:1px solid #bc13fe40;border-radius:10px;flex-direction:column;flex:180px;gap:5px;min-width:160px;padding:13px 16px;display:flex}.fp2-label{color:#bc13fe;text-transform:uppercase;letter-spacing:.06em;font-size:.73rem;font-weight:700}.fp2-eq{color:#fff;font-family:Courier 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1rem;display:flex}.act-btn2{color:#88a;cursor:pointer;background:#ffffff0a;border:1px solid #ffffff1a;border-radius:8px;padding:8px 18px;font-family:inherit;font-size:.84rem;font-weight:600;transition:all .2s}.act-btn2:hover{color:#00f3ff;background:#00f3ff14;border-color:#00f3ff4d}.rel-grid2{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;display:grid}.rel-card2{color:#88a;background:#ffffff05;border:1px solid #ffffff12;border-radius:10px;padding:12px 14px;font-size:.87rem;text-decoration:none;transition:all .2s;display:block}.rel-card2:hover{color:#00f3ff;background:#00f3ff0f;border-color:#00f3ff40}.article-body2{color:#88a;font-size:.92rem;line-height:1.72}.article-body2 h3{color:#fff;margin:22px 0 8px;font-size:1.05rem;font-weight:700}.article-body2 p{margin:0 0 12px}.faq-section-extra .faq-item{border:1px solid #ffffff12;border-radius:10px;margin-bottom:8px;overflow:hidden}.faq-section-extra .faq-q{cursor:pointer;color:#fff;text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;width:100%;padding:14px 16px;font-family:inherit;font-size:.93rem;font-weight:600;display:flex}.faq-section-extra .faq-a{color:#88a;padding:0 16px 14px;font-size:.87rem;line-height:1.65;display:none}.faq-section-extra .faq-item.open .faq-a{display:block}.upgrade-wrap{overflow-x:hidden}.page-sections-outer{max-width:1200px;margin:0 auto;padding:0 1.5rem 3rem}.hidden{display:none!important}[data-theme=light]{--bg-app:#e8edf5;--bg-card:#fff;--bg-input:#e2e8f0;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--cyan:#0891b2;--purple:#7c3aed;--green:#059669;--red:#dc2626;--amber:#d97706;--border:#0000001a;--accent:#0891b2}[data-theme=light] body{background:var(--bg-app);color:var(--text-primary)}[data-theme=light] .card{background:#fff;border-color:#0000001a;box-shadow:0 2px 10px #00000012}[data-theme=light] .form-input{color:#0f172a;background:#fff;border-color:#0000001f}[data-theme=light] .form-input:focus{border-color:var(--accent)}[data-theme=light] .units-toggle{background:#e2e8f0}[data-theme=light] .units-toggle button{color:#475569}[data-theme=light] .units-toggle button.active{background:var(--accent);color:#fff}[data-theme=light] .chip{color:#475569;background:#edf2f9;border-color:#0000001f}[data-theme=light] .chip:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .chip.active{color:var(--accent);border-color:var(--accent);background:#0891b21f}[data-theme=light] .hero-result{background:linear-gradient(135deg,#0891b214,#0891b20a);border-color:#0891b240}[data-theme=light] .hero-value{color:var(--accent)}[data-theme=light] .stat-card{background:#edf2f9;border-color:#0000001a}[data-theme=light] .inner-tab-btn{color:#475569;background:#edf2f9;border-color:#0000001f}[data-theme=light] .inner-tab-btn:hover{color:#0f172a}[data-theme=light] .inner-tab-btn.active{border-color:var(--accent);color:var(--accent);background:#0891b21f}[data-theme=light] .formula-pill{color:var(--accent);background:#0891b214;border-color:#0891b240}[data-theme=light] .alert-info{color:#0369a1;background:#0891b214;border-color:#0891b266}[data-theme=light] .alert-success{color:#065f46;background:#05966914;border-color:#05966966}[data-theme=light] .alert-warn{color:#92400e;background:#d9770614;border-color:#d9770666}[data-theme=light] .fuel-tip{color:#334155;background:#edf2f9;border-color:#0000001a}[data-theme=light] .fuel-stat-cell{background:#edf2f9;border-color:#0000001a}[data-theme=light] .fuel-depletion{color:#92400e;background:#d9770614;border-color:#d977064d}[data-theme=light] .zone-tip{color:#334155;background:#edf2f9}[data-theme=light] .zone-hr-text{color:#475569}[data-theme=light] .food-equiv-card{background:#fbbf2414;border-color:#fbbf244d}[data-theme=light] .food-equiv-name{color:#64748b}[data-theme=light] .action-btn{color:#475569;background:#edf2f9;border-color:#0000001f}[data-theme=light] .action-btn:hover{border-color:var(--accent);color:var(--accent);background:#0891b214}[data-theme=light] .data-table th{color:var(--accent);background:#0891b21a;border-color:#0000001a}[data-theme=light] .data-table td{color:#475569;border-bottom-color:#0000000f}[data-theme=light] .data-table tr:hover td{background:#00000008}[data-theme=light] .data-table td:first-child{color:#0f172a}[data-theme=light] .faq-item{background:#fff;border-color:#0000001a}[data-theme=light] .faq-q{color:#0f172a}[data-theme=light] .faq-a{color:#475569}[data-theme=light] .faq-item.open{border-color:var(--accent);background:#0891b20a}[data-theme=light] .related-card{color:#475569;background:#edf2f9;border-color:#0000001a}[data-theme=light] .related-card:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .tab-btn{color:#475569}[data-theme=light] .tab-btn:hover{color:#0f172a}[data-theme=light] .tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}[data-theme=light] .fuel-guide-row>div{color:#475569}[data-theme=light] .fuel-guide-row strong{color:#0f172a}[data-theme=light] .fuel-guide-row{border-bottom-color:#00000014}[data-theme=light] .btn-calculate{color:#fff;background:linear-gradient(135deg,#0891b2e6,#7c3aedd9)}[data-theme=light] .g-item2{background:#edf2f9;border-color:#0000001a}[data-theme=light] .g-item2 dt{color:var(--accent)}[data-theme=light] .g-item2 dd{color:#475569}[data-theme=light] .fp2{background:#7c3aed0f;border-color:#7c3aed33}[data-theme=light] .fp2-eq{color:#0f172a}[data-theme=light] .fp2-desc{color:#475569}[data-theme=light] .ex-card2{background:#edf2f9;border-color:#0000001a}[data-theme=light] .ex-card2 h3{color:#0f172a}[data-theme=light] .ex-card2 p,[data-theme=light] .article-body2{color:#475569}[data-theme=light] .article-body2 h3{color:#0f172a}[data-theme=light] .rel-card2{color:#475569;background:#edf2f9;border-color:#0000001a}[data-theme=light] .rel-card2:hover{border-color:var(--accent);color:var(--accent);background:#0891b214}[data-theme=light] input,[data-theme=light] select{color-scheme:light}