:root{--bg:#f6f7f8;--surface:#fff;--text:#182026;--muted:#5f6b73;--line:#d9dee2;--accent:#145f69;--accent-dark:#0f4c54;--soft:#eaf3f4;--warn:#7a4b00;--warn-bg:#fff4dc;--error:#8f1d1d;--radius:14px;--shadow:0 10px 30px rgba(20,31,38,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.62}a{color:var(--accent);text-underline-offset:3px}a:hover{color:var(--accent-dark)}.container{width:min(1140px,calc(100% - 32px));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:8px;background:#fff;padding:10px;z-index:50}.site-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{min-height:68px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-weight:780;color:var(--text);text-decoration:none;font-size:1.08rem}.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--soft);color:var(--accent);font-size:1.5rem}.site-nav{margin-left:auto;display:flex;gap:20px;align-items:center}.site-nav a{color:#314048;text-decoration:none;font-size:.95rem}.site-nav a:hover{text-decoration:underline}.menu-toggle{display:none}.main-content{padding-block:54px 70px}.breadcrumbs{font-size:.9rem;color:var(--muted);display:flex;gap:8px;margin-bottom:18px}.breadcrumbs a{color:inherit}h1{font-size:clamp(2.15rem,5vw,3.25rem);line-height:1.08;letter-spacing:-.035em;max-width:900px;margin:.2em 0 .35em}h2{font-size:clamp(1.45rem,3vw,2rem);line-height:1.2;letter-spacing:-.02em;margin-top:2.1em}h3{line-height:1.25}.lede{font-size:1.17rem;color:#40515a;max-width:780px;margin-bottom:32px}.calculator-shell{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.75fr);gap:24px;align-items:start}.calc-panel,.context-panel,.result-hero,.product-card,.cta-box,.choice-grid article,.blocker,.formula{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.calc-panel{padding:26px}.context-panel{padding:24px;position:sticky;top:92px}.calc-panel h2,.context-panel h2{margin-top:0}fieldset{border:0;padding:0;margin:0 0 28px}legend{font-weight:750;font-size:1.05rem;margin-bottom:14px}.field-grid{display:grid;gap:14px}.field-grid.three{grid-template-columns:repeat(3,1fr)}label{font-weight:650;display:block}.input-wrap{margin-top:6px;height:48px;border:1px solid #b8c0c5;border-radius:10px;background:#fff;display:flex;align-items:center;overflow:hidden}.input-wrap:focus-within{outline:3px solid rgba(20,95,105,.22);border-color:var(--accent)}.input-wrap input{border:0;outline:0;width:100%;height:100%;padding:0 12px;font:inherit;font-weight:600;background:transparent}.input-wrap span{color:var(--muted);padding-right:12px}.input-wrap.narrow{max-width:210px}.field-error{color:var(--error);font-weight:500;display:block;min-height:1.35em;margin-top:4px}.inline-metric{margin:.8em 0 0;color:var(--muted)}.mode-switch,.target-options{display:grid;gap:10px}.mode-switch label,.target-options label{padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-weight:600}.target-options label span{float:right;color:var(--muted);font-weight:500}.beta,.eyebrow,.partner-label{font-size:.75rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.beta{background:#eef0ff;padding:2px 6px;border-radius:6px}.measurement-card{padding:16px;background:#f8fbfb;border:1px solid var(--line);border-radius:10px}.compact-list{padding-left:20px}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:10px;border:1px solid transparent;font:inherit;font-weight:750;text-decoration:none;cursor:pointer}.button:focus-visible,.menu-toggle:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid rgba(20,95,105,.32);outline-offset:2px}.button.primary{background:var(--accent);color:#fff}.button.primary:hover{background:var(--accent-dark);color:#fff}.button.secondary{background:#fff;color:var(--accent);border-color:var(--accent)}.button.commercial{background:#24333a;color:#fff;width:100%;margin-top:10px}.button:disabled{opacity:.55;cursor:not-allowed}.check-list{padding-left:20px}.check-list li{margin:.55em 0}.status{min-height:1.5em;color:var(--muted)}.result-section{scroll-margin-top:90px;margin-top:28px}.result-hero{padding:28px}.result-hero h2{margin:.15em 0}.big-number{font-size:clamp(2.2rem,6vw,4.1rem);line-height:1;font-weight:850;letter-spacing:-.04em;margin:20px 0}.result-stats{display:flex;gap:10px;flex-wrap:wrap}.result-stats span{background:var(--bg);border-radius:999px;padding:7px 12px;color:var(--muted)}.result-stats strong{color:var(--text);margin-left:4px}.notice{border-radius:12px;padding:14px 16px;margin:14px 0}.notice.warning{background:var(--warn-bg);color:#5c3a00;border:1px solid #ead49e}.notice.info{background:var(--soft);border:1px solid #c8e0e3}.product-area{margin-top:32px}.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.product-card{padding:22px}.product-card h3{margin:.2em 0 1em}.product-card dl{margin:0}.product-card dl div{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid var(--line)}.product-card dt{color:var(--muted)}.product-card dd{margin:0;font-weight:700;text-align:right}.microcopy{font-size:.88rem;color:var(--muted)}.partner-note{background:#f5f6f7;border:1px solid var(--line);padding:12px 14px;border-radius:10px;margin-bottom:14px}.partner-label{display:block;color:var(--muted);margin-top:6px;text-align:center}.content-grid,.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:36px}.content-grid article{border-top:2px solid var(--line);padding-top:4px}.content-grid h2{margin-top:20px}.cta-box{padding:24px;margin-top:32px}.cta-box h2{margin-top:0}.diagnosis{margin-top:32px}.choice-grid article{padding:18px}.choice-grid h3{margin-top:0}.diagram{height:260px;background:linear-gradient(#fbfcfd,#f0f4f5);border:1px solid var(--line);border-radius:var(--radius);position:relative;margin:20px 0}.diagram span{position:absolute;border:1px solid #b9c5ca;background:white;border-radius:8px;padding:8px 12px}.diagram .top{top:18px;left:50%;transform:translateX(-50%)}.diagram .desk{left:50%;top:48%;transform:translate(-50%,-50%);min-width:180px;text-align:center}.diagram .mic{left:58%;top:65%}.diagram .side{left:16px;top:50%;transform:translateY(-50%) rotate(-90deg)}.formula{padding:18px 20px;display:flex;flex-direction:column;gap:7px;max-width:720px}.formula strong{font-size:1.18rem}.formula span{color:var(--muted)}.sources ul{padding-left:20px}.blocker{border-color:#e5b6b6;background:#fff3f3;color:#6d1b1b;padding:16px 18px}code{background:#f0f2f4;padding:2px 5px;border-radius:5px}.site-footer{background:#121a1e;color:#dfe6e9;padding:38px 0 22px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:32px}.footer-grid p{color:#aeb9be;max-width:620px}.footer-grid nav{display:grid;gap:8px;align-content:start}.footer-grid a{color:#e8eef0}.footer-note{border-top:1px solid #344047;margin-top:24px;padding-top:16px;color:#aeb9be;font-size:.9rem}details{border-top:1px solid var(--line);padding:14px 0}summary{font-weight:700;cursor:pointer}
@media (max-width:820px){.header-inner{flex-wrap:wrap}.menu-toggle{display:inline-flex;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 12px}.site-nav{display:none;width:100%;margin:0 0 14px;flex-direction:column;align-items:flex-start;gap:10px}.site-nav.open{display:flex}.calculator-shell{grid-template-columns:1fr}.context-panel{position:static}.field-grid.three,.product-grid,.content-grid,.choice-grid,.footer-grid{grid-template-columns:1fr}.main-content{padding-top:36px}.target-options label span{float:none;display:block}.result-stats{flex-direction:column;align-items:flex-start}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
.usecase-context{margin-bottom:18px;padding:12px 14px;border:1px solid #c8e0e3;border-radius:10px;background:var(--soft)}.usecase-context strong{display:block;margin:.15rem 0 .25rem}.usecase-context p{margin:.2rem 0;color:#40515a}.notice.compact{margin-top:12px}.notice.compact p{margin:.35rem 0 0}