.activity-page{--act-red:#d01c17;--act-text:#141414;--act-muted:#5d6168;--act-soft:#f6f7f9;--act-border:#e5e7eb;--act-dark:#101217;--act-shadow:0 18px 50px rgba(15,23,42,.08);color:var(--act-text);background:#fff}.activity-page *{box-sizing:border-box}.activity-page [hidden]{display:none!important}.activity-page .container{width:min(1120px,calc(100% - 32px));margin-inline:auto}.activity-hero{padding:76px 0 54px;background:radial-gradient(circle at 82% 18%,rgba(208,28,23,.14),transparent 34%),linear-gradient(180deg,#fff 0%,#fbfbfc 100%);border-bottom:1px solid var(--act-border)}.activity-hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.6fr);gap:48px;align-items:center}.activity-overline{margin:0 0 12px;color:var(--act-red);font-weight:800;font-size:.82rem;letter-spacing:.09em;text-transform:uppercase}.activity-hero h1,.activity-section h2{letter-spacing:-.035em}.activity-hero h1{margin:0;font-size:clamp(2.35rem,5vw,4.6rem);line-height:1.02;max-width:800px}.activity-hero-lead{max-width:760px;margin:20px 0 0;font-size:clamp(1rem,1.5vw,1.18rem);line-height:1.75;color:var(--act-muted)}.activity-hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.activity-hero-chips span{border:1px solid #ead1d0;background:#fff;padding:9px 12px;border-radius:999px;font-size:.88rem;font-weight:750}.activity-hero-panel{background:var(--act-dark);color:#fff;border-radius:24px;padding:28px;box-shadow:var(--act-shadow)}.activity-kicker{display:block;color:#f6aaa7;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.activity-hero-panel strong{display:block;font-size:clamp(1.7rem,3vw,2.5rem);margin:10px 0 12px;letter-spacing:-.03em}.activity-hero-panel p{margin:0;color:#c9cbd0;line-height:1.65}.activity-section{padding:76px 0}.activity-section-soft{background:var(--act-soft)}.activity-section-dark{background:var(--act-dark);color:#fff}.activity-calculator-section{padding-top:64px}.activity-calculator-grid{display:grid;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);gap:52px;align-items:start}.activity-calculator-copy{position:sticky;top:96px}.activity-calculator-copy h2,.activity-section-heading h2,.activity-content-grid h2{margin:0;font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.12}.activity-calculator-copy>p:not(.activity-overline),.activity-section-heading>p:last-child,.activity-content-grid>div>p:not(.activity-overline){color:var(--act-muted);line-height:1.75}.activity-method-notes{display:grid;gap:12px;margin-top:28px}.activity-method-notes article{padding:16px;border:1px solid var(--act-border);border-radius:16px;background:#fff}.activity-method-notes strong{display:block;color:var(--act-red);font-size:1.1rem}.activity-method-notes span{display:block;margin-top:4px;color:var(--act-muted);font-size:.9rem;line-height:1.5}.activity-calculator-card{background:#fff;border:1px solid var(--act-border);border-radius:24px;box-shadow:var(--act-shadow);overflow:hidden}.activity-form{padding:28px}.activity-field{margin-bottom:20px}.activity-field label{display:block;margin-bottom:8px;font-size:.92rem;font-weight:800}.activity-field small{display:block;margin-top:7px;color:#747981;font-size:.79rem;line-height:1.45}.activity-field input,.activity-field select{width:100%;min-height:48px;border:1px solid #d8dbe0;border-radius:12px;background:#fff;color:var(--act-text);padding:11px 13px;font:inherit;outline:none;transition:border-color .18s,box-shadow .18s}.activity-field input:focus,.activity-field select:focus{border-color:var(--act-red);box-shadow:0 0 0 3px rgba(208,28,23,.11)}.activity-input-row{display:grid;grid-template-columns:1fr 88px;gap:8px}.activity-input-suffix{position:relative}.activity-input-suffix input{padding-right:58px}.activity-input-suffix>span{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:#6b7077;font-size:.85rem;font-weight:750;pointer-events:none}.activity-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.activity-error{min-height:18px;margin:6px 0 0;color:#b42318;font-size:.8rem;font-weight:650}.activity-form-alert{margin:4px 0 18px;padding:12px 14px;border:1px solid #f0b3af;background:#fff3f2;color:#8f1b17;border-radius:12px;font-size:.88rem}.activity-form-actions{display:flex;gap:10px;flex-wrap:wrap}.activity-primary-btn,.activity-secondary-btn,.activity-copy-btn{border:0;border-radius:12px;min-height:46px;padding:11px 17px;font:inherit;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}.activity-primary-btn{background:var(--act-red);color:#fff;flex:1}.activity-primary-btn:hover{filter:brightness(.94)}.activity-secondary-btn,.activity-copy-btn{background:#f1f2f4;color:#202226}.activity-result{border-top:1px solid var(--act-border);background:#fafafb;padding:26px}.activity-result-empty{display:flex;align-items:flex-start;gap:13px;color:#646970}.activity-result-empty strong,.activity-result-empty span{display:block}.activity-result-empty strong{color:var(--act-text);margin-bottom:4px}.activity-result-top{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.activity-result-top>div>span{display:block;color:#6d7279;font-size:.84rem;max-width:520px}.activity-result-top>div>strong{display:block;margin-top:5px;font-size:clamp(2rem,4vw,3.3rem);letter-spacing:-.04em}.activity-result-top small{font-size:.9rem;color:#73777e;letter-spacing:0}.activity-intensity-badge{white-space:nowrap;padding:8px 11px;border-radius:999px;background:#fff1f0;color:#a71915;border:1px solid #f1cbc8;font-size:.78rem;font-weight:800}.activity-result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:22px}.activity-result-grid article{background:#fff;border:1px solid var(--act-border);border-radius:14px;padding:14px}.activity-result-grid span,.activity-result-grid small{display:block;color:#767b82;font-size:.75rem}.activity-result-grid strong{display:block;margin:5px 0 2px;font-size:1.18rem}.activity-result-context{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px;padding:13px 14px;border-radius:12px;background:#fff;border:1px dashed #d7d9de}.activity-result-context p{margin:0;font-size:.83rem;color:#666b72}.activity-estimate-note{margin-top:16px;padding:14px 16px;border-left:3px solid var(--act-red);background:#fff}.activity-estimate-note strong{font-size:.88rem}.activity-estimate-note p{margin:4px 0 0;color:#696e75;font-size:.82rem;line-height:1.55}.activity-copy-btn{margin-top:14px;font-size:.84rem}.activity-section-heading{max-width:760px;margin-bottom:34px}.activity-formula-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.activity-formula-grid article,.activity-info-cards article{background:#fff;border:1px solid var(--act-border);border-radius:18px;padding:22px}.activity-formula-grid span{color:var(--act-red);font-weight:800;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}.activity-formula-grid code{display:block;margin:10px 0;padding:12px;background:#14161a;color:#fff;border-radius:10px;font-size:.83rem;line-height:1.5;white-space:normal}.activity-formula-grid p,.activity-info-cards p{margin:0;color:var(--act-muted);font-size:.88rem;line-height:1.6}.activity-content-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.activity-info-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.activity-info-cards strong,.activity-info-cards span{display:block}.activity-info-cards strong{font-size:1.05rem}.activity-info-cards span{margin:4px 0 10px;color:var(--act-red);font-weight:850}.activity-section-dark .activity-overline{color:#ff928d}.activity-section-dark .activity-content-grid>div>p:not(.activity-overline){color:#c3c6cc}.activity-tips{display:grid;gap:10px}.activity-tips article{display:flex;gap:15px;background:#191c22;border:1px solid #292d35;border-radius:16px;padding:17px}.activity-tips article>strong{color:#ff827c}.activity-tips h3{margin:0 0 4px;font-size:1rem}.activity-tips p{margin:0;color:#bbc0c8;line-height:1.55;font-size:.87rem}.activity-related-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.activity-related-cards a{display:flex;min-height:132px;flex-direction:column;text-decoration:none;color:var(--act-text);background:#fff;border:1px solid var(--act-border);border-radius:16px;padding:17px;transition:transform .18s,border-color .18s}.activity-related-cards a:hover{transform:translateY(-2px);border-color:#ddb0ae}.activity-related-cards span{color:#7a7f86;font-size:.76rem}.activity-related-cards strong{margin:8px 0 auto;line-height:1.35}.activity-related-cards svg{margin-top:13px;color:var(--act-red)}.activity-faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.activity-faq-grid article{border:1px solid var(--act-border);border-radius:16px;padding:20px}.activity-faq-grid h3{margin:0 0 8px;font-size:1rem}.activity-faq-grid p{margin:0;color:var(--act-muted);line-height:1.65;font-size:.9rem}.activity-sources-box{border:1px solid var(--act-border);border-radius:22px;padding:26px;background:#fff}.activity-sources-box ul{margin:18px 0;padding-left:20px}.activity-sources-box li{margin:9px 0;color:#555b63;line-height:1.6}.activity-sources-box a{color:#a71915;font-weight:750}.activity-review-date{margin:18px 0 0;color:#777c83;font-size:.82rem}.activity-disclaimer{padding:0 0 76px}.activity-disclaimer-box{display:flex;gap:14px;border:1px solid #f0c9c6;background:#fff7f6;border-radius:18px;padding:22px}.activity-disclaimer-box h2{font-size:1.05rem!important;margin:0 0 5px}.activity-disclaimer-box p{margin:0;color:#666b72;line-height:1.6;font-size:.88rem}.activity-deferred{content-visibility:auto;contain-intrinsic-size:1px 780px}@media(max-width:980px){.activity-hero-grid,.activity-calculator-grid,.activity-content-grid{grid-template-columns:1fr}.activity-calculator-copy{position:static}.activity-related-cards{grid-template-columns:repeat(3,1fr)}.activity-result-grid{grid-template-columns:repeat(2,1fr)}.activity-info-cards{grid-template-columns:repeat(3,1fr)}}@media(max-width:720px){.activity-page .container{width:min(100% - 22px,1120px)}.activity-hero,.activity-section{padding:54px 0}.activity-hero-grid{gap:26px}.activity-hero-panel{padding:22px}.activity-form,.activity-result{padding:20px}.activity-form-grid,.activity-formula-grid,.activity-faq-grid{grid-template-columns:1fr}.activity-related-cards{grid-template-columns:1fr 1fr}.activity-info-cards{grid-template-columns:1fr}.activity-result-top{flex-direction:column}.activity-result-grid{grid-template-columns:1fr 1fr}}@media(max-width:480px){.activity-related-cards,.activity-result-grid{grid-template-columns:1fr}.activity-input-row{grid-template-columns:1fr 82px}.activity-form-actions{flex-direction:column}.activity-primary-btn{width:100%}.activity-hero h1{font-size:2.25rem}}@media(prefers-reduced-motion:reduce){.activity-page *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}