:root{--accent:#10b981;--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;--toast-bg:#1a1a35}*{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}.calc-breadcrumb{color:var(--text-muted);padding:10px 24px;font-size:.79rem}.calc-breadcrumb a{color:var(--text-secondary)}.main-container{max-width:1200px;margin:0 auto;padding:24px}.calc-title{margin-bottom:8px;font-size:2rem;font-weight:700}.calc-subtitle{color:var(--text-secondary);margin-bottom:24px}.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}.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-panel{flex-direction:column;gap:16px;display:flex}.calc-layout{grid-template-columns:340px 1fr;align-items:start;gap:20px;display:grid}@media (width<=900px){.calc-layout{grid-template-columns:1fr}}.form-group{margin-bottom:14px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:.82rem;font-weight:500;display:block}.form-input{background:var(--bg-input);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:8px;padding:10px 14px;font-family:inherit;font-size:.92rem;transition:border-color 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var(--border);border-radius:var(--radius);align-items:center;gap:20px;padding:16px;display:flex}.donut-canvas-wrap{flex-shrink:0;width:130px;height:130px;position:relative}#comp-chart{width:130px!important;height:130px!important}.donut-legend{flex-direction:column;flex:1;gap:10px;display:flex}.donut-legend-item{align-items:center;gap:8px;display:flex}.donut-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.donut-legend-label{color:var(--text-secondary);font-size:.77rem}.donut-legend-val{color:var(--text-primary);font-size:.9rem;font-weight:700}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}@media (width<=600px){.stat-grid{grid-template-columns:repeat(2,1fr)}}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--purple);border-radius:var(--radius);padding:12px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:.7rem}.stat-value{color:var(--text-primary);font-size:1.02rem;font-weight:700}.formula-strip{flex-wrap:wrap;gap:8px;display:flex}.formula-pill{color:var(--accent);background:#10b9811a;border:1px solid #10b98140;border-radius:20px;padding:5px 12px;font-family:Courier New,monospace;font-size:.7rem;line-height:1.4}.alert-stack{flex-direction:column;gap:8px;display:flex}.alert{border-left:3px solid;border-radius:8px;padding:10px 14px;font-size:.83rem;line-height:1.5}.alert-info{color:#7fffd4;background:#00d1c112;border-color:#00d1c1}.alert-success{border-color:var(--green);color:#6ee7b7;background:#10b98114}.alert-warn{border-color:var(--amber);color:#fcd34d;background:#f59e0b14}.alert-danger{border-color:var(--red);color:#fda4af;background:#f43f5e14}.action-bar{flex-wrap:wrap;gap:8px;display:flex}.action-btn{border:1px solid 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#f43f5e4d}.delta-icon{flex-shrink:0;font-size:1.8rem}.delta-text{flex:1}.delta-main{color:var(--text-primary);font-size:1rem;font-weight:600}.delta-sub{color:var(--text-secondary);margin-top:3px;font-size:.82rem}.delta-val{font-size:1.3rem;font-weight:800}.delta-val.pass{color:#6ee7b7}.delta-val.fail{color:#fda4af}.analysis-chart-wrap{height:250px;margin-top:8px;position:relative}.planner-summary{border-radius:var(--radius);background:linear-gradient(135deg,#10b98112,#00f3ff08);border:1px solid #10b98133;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:20px;padding:18px 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var(--border);margin-top:10px;padding-top:10px;font-size:.74rem}.planner-chart-wrap{height:300px;margin-bottom:24px;position:relative}.tip-cards{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:8px;display:grid}@media (width<=700px){.tip-cards{grid-template-columns:1fr}}.tip-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:14px}.tip-icon{margin-bottom:8px;font-size:1.5rem}.tip-title{color:var(--text-primary);margin-bottom:5px;font-size:.85rem;font-weight:600}.tip-body{color:var(--text-secondary);font-size:.78rem;line-height:1.55}.planner-pass-banner{border-radius:var(--radius);text-align:center;background:#10b98114;border:1px solid #10b9814d;margin-bottom:20px;padding:28px}.planner-pass-banner h3{color:var(--green);margin-bottom:8px;font-size:1.1rem}.planner-pass-banner p{color:var(--text-secondary);font-size:.88rem}.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-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}@media (width<=768px){.main-container{padding:16px}.calc-title{font-size:1.5rem}.tab-btn{padding:8px 12px;font-size:.81rem}#bf-gauge{max-width:260px}.donut-wrap{flex-direction:column}}[data-theme=light]{--bg-app:#f1f5f9;--bg-panel:#fff;--bg-card:#fff;--bg-input:#e2e8f0;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#475569;--border:#0000001f;--border-subtle:#0000001f;--border-focus:#4f46e5;--bg-dark:#f1f5f9;--card-bg:#fff}[data-theme=light] body{color:#0f172a;background-color:#f1f5f9;background-image:none}[data-theme=light] input,[data-theme=light] select{color-scheme:light}[data-theme=light] 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