*,:before,:after{box-sizing:border-box}:root{--bg-dark:#050510;--card:#ffffff0a;--input-bg:#ffffff0f;--border:#ffffff14;--text-main:#fff;--text-dim:#88a;--text-muted:#666680;--cyan:#00d1c1;--cyan-dim:#00d1c126;--cyan-glow:#00d1c14d;--purple:#bc13fe;--purple-dim:#bc13fe1f;--accent:#00d1c1;--font-sans:"Inter", sans-serif;--font-mono:"JetBrains Mono", "Courier New", monospace;--radius-sm:6px;--radius-md:10px;--radius-lg:14px}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--input-bg:#f0f4f9;--border:#0000001f;--text-main:#0f172a;--text-dim:#334155;--text-muted:#64748b;--cyan:#0f766e;--cyan-dim:#0f766e1f;--cyan-glow:#0f766e33;--purple:#7c3aed;--purple-dim:#7c3aed1a;--accent:#0f766e}body{font-family:var(--font-sans);color:var(--text-main);background-color:var(--bg-dark);background-image:radial-gradient(circle at 15% 20%,#00d1c114 0%,#0000 30%),radial-gradient(circle at 85% 80%,#bc13fe12 0%,#0000 25%);min-height:100vh;margin:0;transition:background-color .2s,color .2s}[data-theme=light] body{background-image:radial-gradient(circle at 15% 20%,#0f766e0f 0%,#0000 30%),radial-gradient(circle at 85% 80%,#7c3aed0d 0%,#0000 25%)}a{color:inherit;text-decoration:none}input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;appearance:textfield}.calc-breadcrumb{color:var(--text-muted);flex-wrap:wrap;gap:4px;padding:10px 40px;font-size:.78rem;display:flex}.calc-breadcrumb a{color:var(--cyan)}.calc-breadcrumb a:hover{text-decoration:underline}.calc-breadcrumb .sep{opacity:.4}.main-container{max-width:1200px;margin:0 auto;padding:0 20px 40px}.page-title{text-align:center;background:linear-gradient(135deg,#00d1c1,#7cf5ed);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin:24px 0 6px;font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:700}[data-theme=light] .page-title{background:linear-gradient(135deg,#0f766e,#0e5954);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.section-desc{color:var(--text-dim);text-align:center;max-width:680px;margin:0 auto 24px;font-size:.95rem;line-height:1.6}[data-theme=light] .section-desc{color:#475569}.text-center{text-align:center}.skip-link{background:var(--cyan);color:#000;z-index:9999;padding:8px 16px;font-size:.85rem;transition:top .2s;position:absolute;top:-40px;left:0}.skip-link:focus{top:0}.tab-control{border:1px solid var(--border);border-radius:var(--radius-lg);background:#ffffff08;flex-wrap:nowrap;gap:4px;margin-bottom:24px;padding:4px;display:flex;overflow-x:auto}[data-theme=light] .tab-control{background:#f0f4f9;border-color:#0000001f}.tab-btn{border-radius:var(--radius-md);min-width:120px;color:var(--text-dim);cursor:pointer;white-space:nowrap;background:0 0;border:none;flex:1;justify-content:center;align-items:center;gap:6px;padding:10px 16px;font-size:.85rem;font-weight:500;transition:all .2s;display:flex}.tab-btn:hover{color:var(--text-main);background:#ffffff0d}.tab-btn.active{background:var(--cyan);color:#000;font-weight:600}[data-theme=light] .tab-btn{color:#475569}[data-theme=light] .tab-btn:hover{color:#0f172a;background:#0000000d}[data-theme=light] .tab-btn.active{color:#fff;background:#0f766e}.tab-panel{display:none}.tab-panel.active{display:block}.calc-grid{grid-template-columns:1fr 1fr;align-items:start;gap:20px;display:grid}@media (width<=900px){.calc-grid{grid-template-columns:minmax(0,1fr);overflow:hidden}}.input-card{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--cyan);border-radius:var(--radius-lg);padding:22px}[data-theme=light] .input-card{border-color:#0000001f;border-left-color:var(--cyan);background:#fff;box-shadow:0 2px 12px #00000014}.input-card-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:20px;display:flex}.input-card-title{color:var(--cyan);font-size:.95rem;font-weight:600;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em}.input-divider{background:var(--border);height:1px;margin:14px 0}[data-theme=light] .input-divider{background:#0000001a}.input-group{margin-bottom:16px}.input-label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em;margin-bottom:7px;font-size:.82rem;font-weight:600;display:block}[data-theme=light] .input-label{color:#475569}.glass-input{background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-main);font-size:.95rem;font-family:var(--font-sans);outline:none;padding:10px 14px;transition:border-color .2s}.glass-input:focus{border-color:var(--cyan)}[data-theme=light] .glass-input{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .glass-input:focus{border-color:#0f766e}.glass-input::placeholder{color:var(--text-muted)}[data-theme=light] .glass-input::placeholder{color:#0006}.input-hint{color:var(--text-muted);margin:5px 0 0;font-size:.75rem;line-height:1.5}[data-theme=light] .input-hint{color:#64748b}.mode-toggle-wrap{border-radius:var(--radius-md);background:#ffffff0d;gap:4px;padding:3px;display:flex}[data-theme=light] .mode-toggle-wrap{background:#edf2f9}.mode-btn{border-radius:var(--radius-sm);color:var(--text-dim);cursor:pointer;white-space:nowrap;background:0 0;border:none;padding:6px 14px;font-size:.78rem;font-weight:500;transition:all .2s}.mode-btn:hover{color:var(--text-main)}.mode-btn.active{background:var(--cyan);color:#000;font-weight:600}[data-theme=light] .mode-btn{color:#64748b}[data-theme=light] .mode-btn:hover{color:#0f172a}[data-theme=light] .mode-btn.active{color:#fff;background:#0f766e}.fixture-grid{flex-direction:column;gap:8px;display:flex}.fixture-row{background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius-sm);justify-content:space-between;align-items:center;gap:10px;padding:8px 12px;display:flex}[data-theme=light] .fixture-row{background:#edf2f9;border-color:#0000001a}.fixture-label{color:var(--text-dim);flex:1;align-items:center;gap:7px;min-width:0;font-size:.82rem;display:flex}[data-theme=light] .fixture-label{color:#334155}.fixture-icon{flex-shrink:0;font-size:1rem}.wsfu-badge{font-size:.68rem;font-family:var(--font-mono);color:var(--cyan);background:var(--cyan-dim);border-radius:4px;flex-shrink:0;padding:2px 6px}.dfu-badge{color:#f59e0b;background:#f59e0b1f}.fixture-stepper{flex-shrink:0;align-items:center;gap:4px;display:flex}.step-btn{border:1px solid var(--border);border-radius:var(--radius-sm);width:28px;height:28px;color:var(--text-dim);cursor:pointer;background:#ffffff0f;flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;transition:all .2s;display:flex}.step-btn:hover{background:var(--cyan-dim);color:var(--cyan);border-color:var(--cyan)}[data-theme=light] .step-btn{color:#64748b;background:#f0f4f9;border-color:#00000026}[data-theme=light] .step-btn:hover{color:#0f766e;background:#0f766e1a;border-color:#0f766e}.fx-input{text-align:center;width:52px;padding:5px 4px;font-size:.88rem}.chip-row{flex-wrap:wrap;gap:6px;margin-top:4px;display:flex}.chip-btn{border:1px solid var(--border);color:var(--text-dim);cursor:pointer;white-space:nowrap;background:#ffffff0a;border-radius:20px;padding:6px 14px;font-size:.78rem;transition:all .2s}.chip-btn:hover{border-color:var(--cyan);color:var(--cyan)}.chip-btn.active{background:var(--cyan-dim);border-color:var(--cyan);color:var(--cyan);font-weight:600}[data-theme=light] .chip-btn{color:#475569;background:#f0f4f9;border-color:#00000026}[data-theme=light] .chip-btn:hover{color:#0f766e;background:#0f766e12;border-color:#0f766e}[data-theme=light] .chip-btn.active{color:#0f766e;background:#0f766e1f;border-color:#0f766e}.result-card{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--purple);border-radius:var(--radius-lg);padding:22px}[data-theme=light] .result-card{background:#fff;border-color:#0000001f #0000001f #0000001f #7c3aed;box-shadow:0 2px 12px #00000014}.hero-result{text-align:center;background:var(--cyan-dim);border-radius:var(--radius-md);margin-bottom:18px;padding:18px 12px 16px}[data-theme=light] .hero-result{background:#eff9fb;border:1px solid #0f766e33}.hero-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:6px;font-size:.72rem}[data-theme=light] .hero-label{color:#64748b}.hero-value{color:var(--cyan);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;font-family:var(--font-mono);letter-spacing:-.02em;line-height:1.1}.hero-sub{color:var(--text-muted);margin-top:6px;font-size:.75rem}[data-theme=light] .hero-sub{color:#64748b}.stat-grid{grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:18px;display:grid}@media (width<=600px){.stat-grid{grid-template-columns:repeat(2,1fr)}}.stat-cell{background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius-md);text-align:center;padding:10px 12px}[data-theme=light] .stat-cell{background:#edf2f9;border-color:#0000001a}.stat-value{color:var(--text-main);font-size:clamp(.95rem,2vw,1.15rem);font-weight:700;font-family:var(--font-mono);margin-bottom:3px}[data-theme=light] .stat-value{color:#0f172a}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.68rem;line-height:1.3}[data-theme=light] .stat-label{color:#64748b}.inner-tab-row{flex-wrap:nowrap;gap:4px;margin-bottom:10px;display:flex;overflow-x:auto}.inner-tab-btn{border:1px solid var(--border);color:var(--text-dim);cursor:pointer;white-space:nowrap;background:0 0;border-radius:20px;flex-shrink:0;padding:5px 12px;font-size:.75rem;transition:all .2s}.inner-tab-btn:hover{border-color:var(--cyan);color:var(--cyan)}.inner-tab-btn.active{background:var(--cyan-dim);border-color:var(--cyan);color:var(--cyan);font-weight:600}[data-theme=light] .inner-tab-btn{color:#64748b;border-color:#00000026}[data-theme=light] .inner-tab-btn.active{color:#0f766e;background:#0f766e1f;border-color:#0f766e}.inner-panel{margin-bottom:18px;display:none}.inner-panel.active{display:block}.pipe-table-wrap{margin-bottom:18px}.section-label{text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted);margin-bottom:8px;font-size:.75rem}[data-theme=light] .section-label{color:#64748b}.table-scroll{overflow-x:auto}.pipe-table{border-collapse:collapse;width:100%;min-width:380px;font-size:.8rem}.pipe-table th{text-align:left;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border);background:#ffffff0f;padding:7px 10px;font-size:.68rem}[data-theme=light] .pipe-table th{color:#475569;background:#edf2f9;border-bottom-color:#0000001a}.pipe-table td{color:var(--text-main);font-family:var(--font-mono);border-bottom:1px solid #ffffff0a;padding:7px 10px;font-size:.78rem}[data-theme=light] .pipe-table td{color:#0f172a;border-bottom-color:#0000000f}.pipe-table tr:hover td{background:#ffffff08}[data-theme=light] .pipe-table tr:hover td{background:#f0f4f9}.pipe-table tr.row-recommended{background:#00d1c114}[data-theme=light] .pipe-table tr.row-recommended{background:#0f766e14}.pipe-table tr.row-recommended td{color:var(--cyan);font-weight:700}.status-ok{color:#10b981;font-weight:600;font-family:var(--font-sans)}.status-warn{color:#f59e0b;font-weight:600;font-family:var(--font-sans)}.status-bad{color:#ef4444;font-weight:600;font-family:var(--font-sans)}.formula-strip{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.formula-pill{border-radius:var(--radius-md);background:#00d1c114;border:1px solid #00d1c133;flex:1;min-width:140px;padding:8px 12px}[data-theme=light] .formula-pill{background:#0f766e12;border-color:#0f766e33}.fpill-label{text-transform:uppercase;letter-spacing:.07em;color:var(--cyan);margin-bottom:4px;font-size:.65rem;display:block}.fpill-eq{font-family:var(--font-mono);color:var(--text-main);font-size:.78rem}[data-theme=light] .fpill-eq{color:#0f172a}.alert-stack{flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.alert{border-radius:var(--radius-md);align-items:flex-start;gap:10px;padding:10px 14px;font-size:.82rem;line-height:1.5;display:flex}.alert-info{color:var(--text-dim);background:#00d1c114;border:1px solid #00d1c133}[data-theme=light] .alert-info{color:#334155;background:#eff9fb;border-color:#0f766e40}.alert-warn{color:var(--text-dim);background:#f59e0b14;border:1px solid #f59e0b33}[data-theme=light] .alert-warn{color:#334155;background:#fffbeb;border-color:#f59e0b4d}.alert-danger{color:var(--text-dim);background:#ef444414;border:1px solid #ef444433}[data-theme=light] .alert-danger{color:#334155;background:#fff1f2;border-color:#ef44444d}.alert-success{color:var(--text-dim);background:#10b98114;border:1px solid #10b98133}[data-theme=light] .alert-success{color:#334155;background:#f0fdf4;border-color:#10b9814d}.alert-icon{flex-shrink:0;margin-top:1px;font-size:1rem}.act-row{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.act-btn{border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-dim);cursor:pointer;background:#ffffff0a;align-items:center;gap:6px;padding:8px 16px;font-size:.8rem;transition:all .2s;display:flex}.act-btn:hover{border-color:var(--cyan);color:var(--cyan);background:var(--cyan-dim)}[data-theme=light] .act-btn{color:#475569;background:#f0f4f9;border-color:#00000026}[data-theme=light] .act-btn:hover{color:#0f766e;background:#0f766e14;border-color:#0f766e}.gauge-container{flex-direction:column;align-items:center;margin-bottom:8px;padding:12px 0;display:flex}.gauge-label{text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted);margin-bottom:8px;font-size:.75rem}[data-theme=light] .gauge-label{color:#64748b}.velocity-gauge{width:180px;height:100px;margin:0 auto}.gauge-reading{font-family:var(--font-mono);color:var(--text-main);margin-top:4px;font-size:1.4rem;font-weight:700}[data-theme=light] .gauge-reading{color:#0f172a}.gauge-zone{margin-top:4px;font-size:.75rem;font-weight:600}#gaugeNeedle{transform-origin:100px 100px;transition:transform .6s}[data-theme=light] #gaugeNeedle{stroke:#0f172a}.method-compare{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px;display:grid}@media (width<=600px){.method-compare{grid-template-columns:minmax(0,1fr);overflow:hidden}}.method-card{background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px}[data-theme=light] .method-card{background:#edf2f9;border-color:#0000001a}.method-title{text-transform:uppercase;letter-spacing:.06em;color:var(--cyan);margin-bottom:6px;font-size:.72rem;font-weight:700}.method-body{font-family:var(--font-mono);color:var(--text-main);margin-bottom:6px;font-size:.8rem}[data-theme=light] .method-body{color:#0f172a}.method-note{color:var(--text-muted);font-size:.68rem;font-style:italic}[data-theme=light] .method-note{color:#64748b}.safe-run-card{border-radius:var(--radius-md);text-align:center;background:#10b98114;border:1px solid #10b98133;margin-bottom:16px;padding:14px 16px}[data-theme=light] .safe-run-card{background:#f0fdf4;border-color:#10b98140}.safe-run-title{text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted);margin-bottom:6px;font-size:.72rem}[data-theme=light] .safe-run-title{color:#64748b}.safe-run-value{font-size:1.5rem;font-weight:700;font-family:var(--font-mono);color:#10b981;margin-bottom:4px}[data-theme=light] .safe-run-value{color:#065f46}.safe-run-desc{color:var(--text-muted);font-size:.78rem}[data-theme=light] .safe-run-desc{color:#64748b}.page-sections-outer{max-width:1200px;margin:0 auto;padding:0 20px 3rem}.section-title2{color:var(--text-main);border-bottom:1px solid var(--border);margin-bottom:20px;padding-bottom:10px;font-size:clamp(1.1rem,2.5vw,1.5rem);font-weight:700}[data-theme=light] .section-title2{color:#0f172a;border-bottom-color:#0000001a}.how-section{margin-bottom:40px}.how-steps{flex-direction:column;gap:16px;display:flex}.how-step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);align-items:flex-start;gap:16px;padding:16px 20px;display:flex}[data-theme=light] .how-step{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}.step-num{background:var(--cyan-dim);border:1px solid var(--cyan);width:32px;min-width:32px;height:32px;color:var(--cyan);font-size:.9rem;font-weight:800;font-family:var(--font-mono);border-radius:50%;justify-content:center;align-items:center;display:flex}.step-body{color:var(--text-dim);font-size:.88rem;line-height:1.6}[data-theme=light] .step-body{color:#334155}.step-body strong{color:var(--text-main)}[data-theme=light] .step-body strong{color:#0f172a}.pills2-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;display:grid}.pill2-card{background:var(--card);border-radius:var(--radius-lg);border:1px solid #00d1c133;padding:16px 18px}[data-theme=light] .pill2-card{background:#fff;border-color:#0f766e33;box-shadow:0 1px 4px #0000000f}.pill2-label{text-transform:uppercase;letter-spacing:.07em;color:var(--cyan);margin-bottom:7px;font-size:.72rem}.pill2-eq{font-family:var(--font-mono);color:var(--text-main);margin-bottom:8px;font-size:.88rem;font-weight:600}[data-theme=light] .pill2-eq{color:#0f172a}.pill2-desc{color:var(--text-dim);font-size:.78rem;line-height:1.6}[data-theme=light] .pill2-desc{color:#475569}.gloss-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;display:grid}.gloss-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px}[data-theme=light] .gloss-item{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000d}.gloss-term{color:var(--cyan);margin-bottom:6px;font-size:.82rem;font-weight:700;display:block}.gloss-def{color:var(--text-dim);margin:0;font-size:.78rem;line-height:1.65}[data-theme=light] .gloss-def{color:#475569}.ex-section2{margin-bottom:40px}.ex-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;display:grid}.ex-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px}[data-theme=light] .ex-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}.ex-title{color:var(--cyan);border-bottom:1px solid var(--border);margin-bottom:10px;padding-bottom:8px;font-size:.85rem;font-weight:700}[data-theme=light] .ex-title{border-bottom-color:#0000001a}.ex-body{color:var(--text-dim);font-size:.8rem;line-height:1.65}[data-theme=light] .ex-body{color:#475569}.ex-body p{margin:0 0 8px}.ex-body p:last-child{margin-bottom:0}.ex-body strong{color:var(--cyan)}.calc-article{margin-bottom:40px}.article-body{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);color:var(--text-dim);padding:28px 32px;font-size:.9rem;line-height:1.8}[data-theme=light] .article-body{color:#334155;background:#fff;border-color:#0000001a;box-shadow:0 1px 6px #0000000f}.article-body h3{color:var(--text-main);margin:20px 0 8px;font-size:1rem;font-weight:700}[data-theme=light] .article-body h3{color:#0f172a}.article-body h3:first-child{margin-top:0}.article-body p{margin:0 0 14px}.article-body p:last-child{margin-bottom:0}.article-body strong{color:var(--text-main)}[data-theme=light] .article-body strong{color:#0f172a}.faq-section-extra{margin-bottom:40px}.faq-list{flex-direction:column;display:flex}.faq-item{border-bottom:1px solid #ffffff0f}.faq-item__question{cursor:pointer;color:var(--text-main);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.88rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--font-mono);color:var(--text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:var(--cyan)}.faq-item__answer{color:var(--text-dim);margin:0;padding:0 4px 14px;font-size:.85rem;line-height:1.75}[data-theme=light] .faq-item__question{color:#0f172a}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0f766e}[data-theme=light] .faq-item__answer{color:#475569}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item:hover{border-color:#0f766e59;box-shadow:0 2px 10px #0f766e14}[data-theme=light] .faq-item[open]{border-color:#0f766e66 #0f766e66 #0f766e66 #0f766e;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #0f766e1a}[data-theme=light] .faq-item__question{padding:14px 16px}[data-theme=light] .faq-item__answer{border-top:1px solid #0000000f;padding:0 16px 14px}.calc-related{margin-bottom:40px}.related-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.related-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);align-items:flex-start;gap:12px;padding:14px 16px;text-decoration:none;transition:all .2s;display:flex}.related-card:hover{border-color:var(--cyan);transform:translateY(-2px)}[data-theme=light] .related-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .related-card:hover{border-color:#0f766e}.related-icon{flex-shrink:0;font-size:1.5rem}.related-title{color:var(--text-main);margin-bottom:4px;font-size:.85rem;font-weight:700}[data-theme=light] .related-title{color:#0f172a}.related-desc{color:var(--text-dim);font-size:.75rem;line-height:1.5}[data-theme=light] .related-desc{color:#475569}.calc-page-footer{border-top:1px solid var(--border);background:#ffffff05;margin-top:40px;padding:40px 40px 24px}[data-theme=light] .calc-page-footer{background:#fff;border-top-color:#0000001a}.calc-page-footer .footer-grid{flex-wrap:wrap;align-items:flex-start;gap:24px 40px;max-width:1200px;margin:0 auto 24px;display:flex}.calc-page-footer .footer-logo-row{align-items:center;gap:10px;width:100%;display:flex}.calc-page-footer .footer-logo{width:28px;height:28px}.calc-page-footer .footer-brand-name{font-family:var(--font-mono);color:var(--cyan);letter-spacing:.08em;font-size:.9rem;font-weight:700}.calc-page-footer .footer-tagline{color:var(--text-muted);width:100%;margin:0;font-size:.78rem}[data-theme=light] .calc-page-footer .footer-tagline{color:#64748b}.calc-page-footer .footer-col-title{text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim);margin-bottom:8px;font-size:.72rem;font-weight:700}[data-theme=light] .calc-page-footer .footer-col-title{color:#334155}.calc-page-footer .footer-links-col{flex-direction:column;gap:6px;min-width:140px;display:flex}.calc-page-footer .footer-link{color:var(--text-muted);font-size:.8rem;text-decoration:none;transition:color .2s}.calc-page-footer .footer-link:hover{color:var(--cyan)}[data-theme=light] .calc-page-footer .footer-link{color:#64748b}[data-theme=light] .calc-page-footer .footer-link:hover{color:#0f766e}.calc-page-footer .footer-bottom{border-top:1px solid var(--border);max-width:1200px;color:var(--text-muted);text-align:center;margin:0 auto;padding-top:20px;font-size:.75rem}[data-theme=light] .calc-page-footer .footer-bottom{color:#64748b;border-top-color:#00000014}#backToTop{background:var(--cyan-dim);border:1px solid var(--cyan);width:42px;height:42px;color:var(--cyan);cursor:pointer;z-index:999;border-radius:50%;justify-content:center;align-items:center;font-size:1.4rem;transition:all .2s;display:none;position:fixed;bottom:24px;right:24px}#backToTop.visible{display:flex}#backToTop:hover{background:var(--cyan);color:#000}[data-theme=light] #backToTop{color:#0f766e;background:#0f766e1a;border-color:#0f766e}[data-theme=light] #backToTop:hover{color:#fff;background:#0f766e}#toastContainer{z-index:9000;pointer-events:none;flex-direction:column;gap:8px;display:flex;position:fixed;bottom:24px;right:80px}.toast{border-radius:var(--radius-md);pointer-events:none;min-width:200px;max-width:320px;padding:10px 16px;font-size:.82rem;animation:.25s toastIn}.toast-success{border:1px solid var(--cyan);color:var(--cyan);background:#00d1c126}.toast-warn{color:#f59e0b;background:#f59e0b1f;border:1px solid #f59e0b}.toast-error{color:#ef4444;background:#ef44441f;border:1px solid #ef4444}@keyframes toastIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:none}}.gloss-section2{margin-bottom:3rem}.gs2-title{margin-bottom:1rem;font-size:1.1rem;font-weight:700}.gs2-grid{grid-template-columns:repeat(2,1fr);gap:1rem;display:grid}@media (width<=700px){.gs2-grid{grid-template-columns:1fr}}.gs2-item{background:var(--card);border:1px solid var(--border);color:var(--text-dim);border-radius:10px;padding:1rem;font-size:.83rem;line-height:1.7}[data-theme=light] .gs2-item{background:#fff;border-color:#0000001a;box-shadow:0 1px 3px #0000000d}.gs2-item strong{color:var(--text-main)}.formula-pills2{margin-bottom:3rem}.fp2-title{margin-bottom:1rem;font-size:1.1rem;font-weight:700}.fp2-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;display:grid}@media (width<=700px){.fp2-grid{grid-template-columns:repeat(2,1fr)}}.fp2-pill{background:#00f3ff0f;border:1px solid #00f3ff26;border-radius:10px;flex-direction:column;gap:4px;padding:.75rem 1rem;display:flex}[data-theme=light] .fp2-pill{background:#0e74900f;border-color:#0e749033}.fp2-name{color:var(--text-dim);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem}.fp2-eq{font-family:var(--font-mono);color:var(--cyan);font-size:.82rem;font-weight:600}[data-theme=light] .fp2-eq{color:#0e7490}@media print{.glass-navbar,.calc-page-footer,.calc-back-to-top,.tab-nav,.tabs-outer,.outer-tab-nav,.tab-btn,.act-row,.act-row2,.action-bar,.btn-copy,.btn-share,.btn-csv,.btn-pdf,.btn-export-pdf,.share-btn,.copy-btn,.print-btn,.how-section,.formula-pills2,.gloss-section2,.ex-section2,.faq-section,.faq-section-extra,.calc-related,.page-sections-outer{display:none!important}body{color:#000;background:#fff}.result-card,.stat-card,.card,.glass-card,.result-panel{box-shadow:none;page-break-inside:avoid;color:#000;background:#fff;border:1px solid #ccc}.stat-value,.stat-label,.result-value,h1,h2,h3{color:#000;text-shadow:none}.tab-panel{display:block!important}}