:root{color-scheme:dark;--bg:#0c0e12;--panel:#15191f;--line:#30343b;--text:#f6f7f9;--muted:#aeb5c1;--red:#ff493c}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-underline-offset:5px}button,input{font:inherit}a,button,input{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ffbc58;outline-offset:5px}.skip{position:absolute;left:20px;top:-100px;background:white;color:black;padding:12px;z-index:9}.skip:focus{top:10px}header{max-width:1360px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:24px 40px;gap:22px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:14px;line-height:1.25;font-weight:800;letter-spacing:.05em}.brand img{border-radius:9px}.brand-bottom{display:block;color:var(--muted);font-size:12px;letter-spacing:.23em;margin-top:4px}nav{display:flex;gap:28px}nav a{text-decoration:none;font-size:14px;color:#c5c9d1}nav a:hover{color:white}.button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:13px 22px;border:1px solid transparent;border-radius:6px;text-decoration:none;font-weight:700;font-size:14px;line-height:1.4}.primary,.compact{background:var(--red);color:#140704}.primary:hover,.compact:hover{background:#ff675d}.secondary{border-color:#535963;background:transparent;color:white}.secondary:hover{background:#242932}.compact{min-height:42px;padding:10px 18px}main{max-width:1280px;margin:auto}section{padding:76px 40px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.7rem,5.8vw,5.1rem);letter-spacing:-.055em;line-height:1.05;margin-bottom:28px;font-weight:800}h2{font-size:clamp(2rem,3.2vw,3rem);line-height:1.12;letter-spacing:-.04em;margin-bottom:24px}h3{font-size:1.25rem;line-height:1.3;letter-spacing:-.02em}p{color:var(--muted)}em{font-style:normal;color:var(--red)}.eyebrow{display:block;font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--red);margin-bottom:22px}.lead{font-size:19px;line-height:1.7;max-width:620px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:75px;align-items:center;padding-top:54px;padding-bottom:54px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.meta{font-size:13px;margin-top:18px}.hero-details{display:flex;gap:22px;font-size:11px;font-weight:bold;letter-spacing:.1em;margin-top:54px;color:#bfc5ce}.hero-visual{position:relative;display:flex;justify-content:center;border:1px solid #3d2425;background:radial-gradient(ellipse at center,#3c1d20 0%,#17151a 60%,#0c0e12 100%);padding:30px 20px;border-radius:14px;min-height:500px}.hero-visual img{width:245px;height:auto;max-width:80%;border-radius:13px;transform:rotate(3deg);box-shadow:0 30px 55px #0009}.image-label{position:absolute;right:14px;bottom:12px;font-size:10px;letter-spacing:.12em;color:#bfb6bd}.strip{padding:23px 40px;display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;letter-spacing:.16em;color:#b2b9c3;font-weight:700}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:50px;margin-bottom:25px}.section-heading p{max-width:370px;margin-bottom:24px}.grid{display:grid;gap:18px}.four{grid-template-columns:repeat(4,minmax(0,1fr))}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:28px;text-decoration:none}.card:hover{border-color:#727983}.card p{font-size:14px}.card-link{font-size:12px;font-weight:700;color:#fff;display:block;margin-top:28px}.number{display:block;font-size:12px;letter-spacing:.1em;color:var(--red);margin-bottom:36px}.plan-feature{display:grid;grid-template-columns:1fr 1.15fr;align-items:center;gap:85px;background:#12151b;border-block:1px solid var(--line)}.plan-image{display:flex;align-items:center;justify-content:center}.plan-image img{width:260px;max-width:100%;height:auto;border-radius:10px;box-shadow:0 25px 60px #0008}.feature-list{list-style:none;padding:0;margin:30px 0}.feature-list li{border-top:1px solid var(--line);padding:12px 0;color:#d0d4da;font-size:14px}.workflow{border-block:1px solid var(--line)}.workflow .grid{margin-top:45px;gap:40px}.workflow .number{margin-bottom:20px}.workflow p{font-size:14px}.price-inline{display:flex;align-items:center;gap:40px;padding:30px;border-block:1px solid var(--line)}.price-inline strong{font-size:48px;letter-spacing:-.05em}.price-inline span{color:var(--muted);margin-left:6px}.price-inline p{max-width:420px;margin-bottom:0}.conversion{background:var(--red);display:flex;align-items:center;justify-content:space-between;gap:40px;margin:30px 40px 70px;border-radius:8px;padding:44px;color:#140704}.conversion .eyebrow,.conversion p{color:#401814}.conversion p{max-width:570px;margin-bottom:0}.conversion .button{background:#141419;color:white;flex-shrink:0}.conversion h2{margin-bottom:16px}footer{max-width:1280px;margin:auto;border-top:1px solid var(--line);padding:40px}.footer-top{display:flex;justify-content:space-between;gap:20px}.footer-links{display:flex;gap:30px;flex-wrap:wrap;font-size:13px;margin:28px 0}.fine{font-size:12px;line-height:1.7;margin-top:24px}.page-intro{padding-bottom:30px;max-width:1050px}.page-intro h1{font-size:clamp(2.6rem,5vw,4.3rem)}.crumb{display:block;color:var(--muted);font-size:13px;margin-bottom:30px}.tool-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;padding-top:16px}.tool-panel,.result-panel,.quiz-panel{border:1px solid var(--line);padding:32px;background:var(--panel);border-radius:8px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}label{font-size:14px;font-weight:700;display:block}label span{color:var(--muted);font-weight:400;font-size:12px;display:block}input{width:100%;margin-top:8px;background:#0b0e13;border:1px solid #515965;color:white;padding:12px 14px;border-radius:5px;min-height:48px}.result-panel{background:#171919;border-top:3px solid var(--red)}.result-number{font-size:46px;letter-spacing:-.04em;line-height:1.2;margin:26px 0 12px;overflow-wrap:anywhere}.result-stat{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;color:#c8ced5}.result-stat strong{color:white}.text-button{color:#c1c6cf;background:transparent;border:none;padding:14px;margin-top:12px;font-size:14px;text-decoration:underline}#error{color:#ff968d;font-size:14px}.reading{max-width:850px;margin:auto}.reading h3{margin-top:35px}.reading p{font-size:16px}.formula{border-left:3px solid var(--red);background:var(--panel);padding:20px;font-family:monospace;overflow-wrap:anywhere}.quiz-wrap{max-width:950px;margin:auto;padding-top:20px}.quiz-top{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;margin-bottom:20px}.quiz-panel h2{font-size:26px;line-height:1.3}.quiz-options{display:grid;gap:12px;margin:28px 0}.option{background:#101318;border:1px solid #454d59;border-radius:6px;color:white;text-align:left;padding:16px;display:flex;gap:14px;align-items:center;font-size:16px}.option:hover:not(:disabled){border-color:var(--red)}.option:disabled{cursor:default}.option.right{border-color:#80cda9;background:#12251d}.option.wrong{border-color:#ff837c;background:#321a1a}.explanation{border-left:3px solid var(--red);padding-left:18px;margin:25px 0}.quiz-progress{height:3px;background:var(--line);margin-bottom:28px}.quiz-progress span{height:100%;display:block;background:var(--red)}.standalone{background:transparent;border:none;grid-template-columns:1.3fr 1fr}.pricing ul{padding-left:20px;color:#c8ced5;font-size:14px;line-height:2}.pricing h2{font-size:44px}.pricing h2 span{font-size:16px;font-weight:400;letter-spacing:0;color:var(--muted)}.featured{border-color:var(--red)}details{padding:20px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;color:white;font-weight:700}details p{margin:18px 0 0}@media(max-width:1000px){header{padding:20px 24px}nav{gap:16px}.hero{gap:30px}.four{grid-template-columns:repeat(2,minmax(0,1fr))}.three{gap:12px}.card{padding:22px}.plan-feature{gap:40px}.hero-details{gap:12px}.price-inline{flex-wrap:wrap}.conversion{gap:20px}}@media(max-width:700px){header{flex-wrap:wrap;padding:18px 20px;gap:16px}.brand{font-size:12px}header>.button{margin-left:auto}nav{order:3;flex-basis:100%;justify-content:space-between;gap:10px}nav a{font-size:12px}section{padding:50px 20px}.hero{grid-template-columns:1fr;gap:35px;padding-top:42px}.hero h1{font-size:3.4rem}.lead{font-size:17px}.hero-visual{min-height:0;padding:26px}.hero-visual img{width:210px}.hero-details{margin-top:26px;justify-content:space-between;font-size:10px}.strip{padding:20px;display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:10px}.section-heading{display:block}.section-heading p{max-width:none}.four,.three{grid-template-columns:1fr}.number{margin-bottom:20px}.plan-feature,.standalone{grid-template-columns:1fr;gap:35px}.plan-feature:not(.standalone) .plan-image{order:2}.plan-image img{width:230px}.workflow .grid{gap:24px}.price-inline{padding:24px;gap:20px}.price-inline strong{font-size:40px}.conversion{margin:15px 20px 45px;padding:30px 24px;flex-direction:column;align-items:flex-start}.conversion h2{font-size:32px}.footer-top{display:block}footer{padding:35px 20px}.tool-layout{grid-template-columns:1fr;padding-top:8px}.tool-panel,.result-panel,.quiz-panel{padding:24px}.fields{gap:18px;grid-template-columns:1fr}.result-number{font-size:40px}.quiz-panel h2{font-size:22px}.page-intro h1{font-size:2.7rem}.option{font-size:15px}.pricing .card{padding:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
select{width:100%;margin-top:8px;background:#0b0e13;border:1px solid #515965;color:white;padding:12px 14px;border-radius:5px;min-height:48px;font:inherit;font-size:14px}select:focus-visible{outline:3px solid #ffbc58;outline-offset:5px}[hidden]{display:none!important}.wide-field{grid-column:1/-1}.notification-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:24px;padding-top:12px}.room-diagram{border:1px solid var(--line);border-radius:6px;margin-top:24px;background:#0b1017}.room-diagram svg{display:block;width:100%;height:auto}.room-outline{fill:#ff493c0e;stroke:#758195;stroke-width:2}.room-device{fill:#ff493c;stroke:#ffb7b2;stroke-width:2}.room-grid{stroke:#6b7280;stroke-width:1;stroke-dasharray:5 5}.device-label{fill:#ffb7b2;font-size:13px;font-family:Arial,sans-serif}.dimension-label{fill:#d4dae5;font-size:16px;font-family:Arial,sans-serif}.diagram-legend{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:12px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.diagram-legend>span:last-child{flex-basis:100%;padding-left:18px}.legend-device{width:9px;height:9px;background:var(--red);border-radius:50%}.planner-notes{font-size:12px;color:var(--muted);padding-left:18px;margin-top:25px}.planner-notes li{margin-bottom:9px}.arrangement-comparison{border:1px solid var(--line);padding:18px;border-radius:6px;margin-top:22px}.arrangement-comparison h3{font-size:15px;margin-bottom:14px}.arrangement-comparison p{font-size:13px;margin-bottom:12px}.arrangement-comparison p:last-child{margin-bottom:0}.option.selected:not(.right):not(.wrong){border-color:#ff766b;background:#291b1d}.button:disabled{opacity:.45;cursor:default}.missed-review{margin-top:40px}.quiz-panel .explanation p{font-size:16px}@media(max-width:850px){.notification-layout{grid-template-columns:1fr}.notification-layout .fields{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:500px){.notification-layout .fields{grid-template-columns:1fr}.notification-layout .result-number{font-size:36px}}
.static-questions article+article{border-top:1px solid var(--line);margin-top:30px;padding-top:30px}.static-questions li{padding:6px 0;color:var(--muted)}.faq-section,.level-guide{padding-top:40px}.level-guide h3{margin-top:30px}