:root{--accent:#10b981;--accent-dim:#10b98126;--bg-dark:#050510;--bg-card:#0d0d1f;--bg-input:#111128;--text-main:#fff;--text-dim:#88a;--text-muted:#557;--cyan:#00f3ff;--purple:#bc13fe;--green:#10b981;--red:#f43f5e;--amber:#f59e0b;--border:#ffffff14;--radius:12px;--font-body:"Inter", sans-serif;--font-mono:"JetBrains Mono", monospace;--font-heading:"Plus Jakarta Sans", sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-dark);color:var(--text-main);font-family:var(--font-body);min-height:100vh;line-height:1.6}a{color:inherit;text-decoration:none}.glass-navbar{z-index:1000;backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#050510eb;padding:0 24px;position:sticky;top:0}.main-container{max-width:1200px;margin:0 auto;padding:24px}.calc-title{font-size:2rem;font-weight:800;font-family:var(--font-heading);margin-bottom:8px}.calc-subtitle{color:var(--text-dim);margin-bottom:24px;font-size:.95rem}.tab-nav{border-bottom:1px solid var(--border);gap:2px;margin-bottom:24px;display:flex}.tab-btn{color:var(--text-dim);cursor:pointer;white-space:nowrap;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-main)}.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:340px 1fr;align-items:start;gap:20px;display:grid}.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)}.mini-chart-card{border-left:3px solid var(--accent);margin-top:16px}.section-title{color:var(--text-main);margin-bottom:14px;font-size:.95rem;font-weight:700}.section-subtitle{color:var(--accent);text-transform:uppercase;letter-spacing:.04em;margin:14px 0 8px;font-size:.82rem;font-weight:600}.two-col{grid-template-columns:1fr 1fr;gap:12px;display:grid}.form-group{margin-bottom:14px}.form-label{color:var(--text-dim);margin-bottom:6px;font-size:.82rem;font-weight:500;display:block}.num-wrap{align-items:center;gap:6px;display:flex}.form-input{background:var(--bg-input);border:1px solid var(--border);color:var(--text-main);border-radius:8px;flex:1;width:100%;padding:9px 12px;font-family:inherit;font-size:.92rem;transition:border-color .2s}.form-input:focus{border-color:var(--accent);outline:none}.unit-badge{color:var(--text-muted);white-space:nowrap;font-size:.75rem;font-family:var(--font-mono);flex-shrink:0}.pill-group{flex-wrap:wrap;gap:6px;display:flex}.pill-btn{background:var(--bg-input);border:1px solid var(--border);min-width:0;color:var(--text-dim);cursor:pointer;text-align:center;border-radius:8px;flex:1;padding:9px 12px;font-family:inherit;font-size:.83rem;font-weight:500;transition:all .2s}.pill-btn:hover{border-color:var(--accent);color:var(--text-main)}.pill-btn.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent);font-weight:600}.bmi-auto-row{align-items:center;gap:8px;padding:8px 0;display:flex}.bmi-auto-value{font-family:var(--font-mono);color:var(--accent);font-size:.95rem;font-weight:700}.hero-section{text-align:center;padding:20px 0 16px}.hero-label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px;font-size:.82rem}.hero-value{font-size:3.2rem;font-weight:800;font-family:var(--font-heading);color:var(--accent);line-height:1.1}.hero-delta{margin-top:6px;font-size:1rem;font-weight:600}.hero-delta.younger{color:var(--green)}.hero-delta.older{color:var(--red)}.hero-delta.same{color:var(--text-dim)}.score-bar-wrap{margin:16px 0}.score-bar-label{color:var(--text-dim);justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.82rem;display:flex}.score-bar-track{background:var(--bg-input);border-radius:5px;height:10px;overflow:hidden}.score-bar-fill{border-radius:5px;height:100%;transition:width .6s,background .4s}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px;display:grid}.stat-card{background:var(--bg-input);border:1px solid var(--border);border-left:3px solid var(--purple);border-radius:10px;padding:11px 13px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.68rem;font-family:var(--font-mono);margin-bottom:4px}.stat-value{color:var(--text-main);font-size:1rem;font-weight:700}.formula-strip{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.formula-pill{background:var(--accent-dim);color:var(--accent);white-space:nowrap;font-size:.74rem;font-family:var(--font-mono);border:1px solid #10b9814d;border-radius:20px;padding:5px 14px}.action-bar{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.action-btn{background:var(--bg-input);border:1px solid var(--border);color:var(--text-dim);cursor:pointer;white-space:nowrap;border-radius:8px;padding:8px 16px;font-family:inherit;font-size:.8rem;transition:all .2s}.action-btn:hover{border-color:var(--accent);color:var(--accent)}.breakdown-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.breakdown-category{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px}.breakdown-category:last-child{grid-column:1/-1}.cat-header{align-items:center;gap:10px;margin-bottom:10px;display:flex}.cat-icon{font-size:1.3rem}.cat-name{flex:1;font-size:.92rem;font-weight:700}.cat-score{font-family:var(--font-mono);font-size:.95rem;font-weight:700}.cat-bar-track{background:var(--bg-input);border-radius:4px;height:8px;margin-bottom:10px;overflow:hidden}.cat-bar-fill{border-radius:4px;height:100%;transition:width .6s,background .4s}.cat-details{color:var(--text-dim);font-size:.82rem;line-height:1.7}.cat-details .detail-row{border-bottom:1px solid #ffffff0a;justify-content:space-between;padding:3px 0;display:flex}.cat-details .detail-label{color:var(--text-dim)}.cat-details .detail-value{font-family:var(--font-mono);color:var(--text-main);font-weight:600}.score-excellent{color:var(--green)}.score-good{color:#34d399}.score-fair{color:var(--amber)}.score-poor{color:var(--red)}.bar-excellent{background:var(--green)}.bar-good{background:#34d399}.bar-fair{background:var(--amber)}.bar-poor{background:var(--red)}.recs-intro{margin-bottom:20px}.recs-subtitle{color:var(--text-dim);margin-top:6px;font-size:.9rem}.recs-list{flex-direction:column;gap:14px;display:flex}.rec-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);border-left:3px solid var(--accent);padding:18px 20px}.rec-header{align-items:center;gap:10px;margin-bottom:8px;display:flex}.rec-icon{font-size:1.4rem}.rec-title{font-size:.95rem;font-weight:700}.rec-priority{font-size:.7rem;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em;border-radius:12px;padding:3px 10px;font-weight:600}.rec-priority.high{color:var(--red);background:#f43f5e1f;border:1px solid #f43f5e4d}.rec-priority.medium{color:var(--amber);background:#f59e0b1f;border:1px solid #f59e0b4d}.rec-priority.low{background:var(--accent-dim);color:var(--accent);border:1px solid #10b9814d}.rec-body{color:var(--text-dim);font-size:.85rem;line-height:1.7}.rec-impact{color:var(--accent);font-size:.78rem;font-family:var(--font-mono);margin-top:8px;font-weight:600}.recs-disclaimer{background:#f59e0b0f;border:1px solid #f59e0b33;border-radius:10px;margin-top:24px;padding:14px 18px}.recs-disclaimer p{color:var(--amber);font-size:.8rem;line-height:1.6}.page-sections-outer{max-width:1600px;margin:0 auto;padding:0 1.5rem 3rem}.how-section{padding:40px 0 24px}.how-title{font-size:1.4rem;font-weight:800;font-family:var(--font-heading);text-align:center;margin-bottom:24px}.how-steps{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;display:grid}.how-step{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center;padding:20px}.step-num{background:var(--accent-dim);width:36px;height:36px;color:var(--accent);border:1px solid #10b9814d;border-radius:50%;justify-content:center;align-items:center;margin-bottom:10px;font-size:1rem;font-weight:800;display:inline-flex}.how-step h3{margin-bottom:6px;font-size:.9rem;font-weight:700}.how-step p{color:var(--text-dim);font-size:.82rem;line-height:1.6}.faq-section{padding:24px 0}.faq-title{font-size:1.4rem;font-weight:800;font-family:var(--font-heading);text-align:center;margin-bottom:20px}.faq-list{flex-direction:column;max-width:800px;margin:0 auto;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:.9rem;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);padding:0 4px 14px;font-size:.85rem;line-height:1.75}.calc-related{padding:24px 0}.related-title{font-size:1.4rem;font-weight:800;font-family:var(--font-heading);text-align:center;margin-bottom:20px}.related-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.related-card{text-align:center;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;align-items:center;padding:18px 14px;transition:border-color .2s,transform .2s;display:flex}.related-card:hover{border-color:var(--accent);transform:translateY(-2px)}.related-icon{margin-bottom:8px;font-size:1.5rem}.related-name{margin-bottom:4px;font-size:.88rem;font-weight:700}.related-desc{color:var(--text-dim);font-size:.76rem}.toast{z-index:9999;border-radius:10px;max-width:340px;padding:12px 20px;font-size:.85rem;animation:.3s toastIn;position:fixed;bottom:24px;right:24px}.toast-success{border:1px solid var(--green);color:#6ee7b7;background:#10b98126}.toast-warn{border:1px solid var(--amber);color:#fcd34d;background:#f59e0b26}.toast-error{border:1px solid var(--red);color:#fca5a5;background:#f43f5e26}@keyframes toastIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (width<=900px){.calc-layout,.breakdown-grid{grid-template-columns:1fr}.stat-grid,.how-steps{grid-template-columns:1fr 1fr}}@media (width<=600px){.main-container{padding:16px}.calc-title{font-size:1.5rem}.hero-value{font-size:2.4rem}.stat-grid,.two-col,.how-steps{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr 1fr}.tab-btn{padding:10px 14px;font-size:.82rem}}[data-theme=light]{--bg-dark:#e8edf5;--bg-card:#fff;--bg-input:#f0f4f9;--text-main:#0f172a;--text-dim:#475569;--text-muted:#64748b;--cyan:#0e7490;--purple:#7c3aed;--green:#059669;--red:#dc2626;--amber:#d97706;--accent:#059669;--accent-dim:#0596691a;--border:#0000001f}[data-theme=light] .glass-navbar{backdrop-filter:blur(12px);background:#f8fafceb;border-bottom:1px solid #0000001a}[data-theme=light] body{background:var(--bg-dark);color:var(--text-main)}[data-theme=light] .card{background:#fff;border-color:#0000001f;box-shadow:0 2px 12px #00000017}[data-theme=light] .input-card{border-left-color:#0e7490}[data-theme=light] .result-card{border-left-color:#7c3aed}[data-theme=light] .mini-chart-card{border-left-color:var(--accent)}[data-theme=light] .form-input{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .form-input:focus{border-color:var(--accent)}[data-theme=light] .form-input::placeholder{color:#0006}[data-theme=light] .pill-btn{color:#475569;background:#f0f4f9;border-color:#00000026}[data-theme=light] .pill-btn:hover{border-color:var(--accent);color:#0f172a}[data-theme=light] .pill-btn.active{border-color:var(--accent);color:var(--accent);background:#0596691a}[data-theme=light] .tab-nav{border-bottom-color:#0000001a}[data-theme=light] .tab-btn{color:#64748b}[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] .hero-label{color:#64748b}[data-theme=light] .hero-value{color:var(--accent)}[data-theme=light] .hero-delta.younger{color:var(--green)}[data-theme=light] .hero-delta.older{color:var(--red)}[data-theme=light] .hero-delta.same{color:#64748b}[data-theme=light] .stat-card{background:#edf2f9;border-color:#0000001a #0000001a #0000001a #7c3aed}[data-theme=light] .stat-label{color:#64748b}[data-theme=light] .stat-value{color:#0f172a}[data-theme=light] .score-bar-track{background:#edf2f9}[data-theme=light] .score-bar-label{color:#475569}[data-theme=light] .formula-pill{color:var(--accent);background:#05966914;border-color:#05966940}[data-theme=light] .action-btn{color:#475569;background:#f0f4f9;border-color:#00000026}[data-theme=light] .action-btn:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .breakdown-category{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .cat-bar-track{background:#edf2f9}[data-theme=light] .cat-details .detail-row{border-bottom-color:#0000000f}[data-theme=light] .cat-details .detail-label{color:#64748b}[data-theme=light] .cat-details .detail-value{color:#0f172a}[data-theme=light] .recs-subtitle{color:#475569}[data-theme=light] .rec-card{border-color:#0000001f;border-left-color:var(--accent);background:#fff;box-shadow:0 1px 4px #0000000f}[data-theme=light] .rec-body{color:#475569}[data-theme=light] .rec-priority.high{color:#dc2626;background:#fff1f2;border-color:#dc26264d}[data-theme=light] .rec-priority.medium{color:#d97706;background:#fffbeb;border-color:#d977064d}[data-theme=light] .rec-priority.low{color:var(--accent);background:#f0fdf4;border-color:#0596694d}[data-theme=light] .recs-disclaimer{background:#fffbeb;border-color:#d9770640}[data-theme=light] .recs-disclaimer p{color:#92400e}[data-theme=light] .how-step{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .step-num{color:var(--accent);background:#0596691a;border-color:#0596694d}[data-theme=light] .how-step h3{color:#0f172a}[data-theme=light] .how-step p{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:#05966959;box-shadow:0 2px 10px #05966914}[data-theme=light] .faq-item[open]{border-color:#05966966;border-left:3px solid var(--accent);box-shadow:0 2px 12px #0596691a}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[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:var(--accent)}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}[data-theme=light] .related-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .related-card:hover{border-color:var(--accent)}[data-theme=light] .related-name{color:#0f172a}[data-theme=light] .related-desc{color:#64748b}[data-theme=light] .toast-success{border-color:var(--green);color:#065f46;background:#f0fdf4}[data-theme=light] .toast-warn{border-color:var(--amber);color:#92400e;background:#fffbeb}[data-theme=light] .toast-error{border-color:var(--red);color:#991b1b;background:#fff1f2}[data-theme=light] .bmi-auto-value{color:var(--accent)}[data-theme=light] .unit-badge{color:#64748b}[data-theme=light] .section-subtitle{color:var(--accent)}[data-theme=light] .score-excellent{color:#059669}[data-theme=light] .score-good{color:#0d9488}[data-theme=light] .score-fair{color:#d97706}[data-theme=light] .score-poor{color:#dc2626}