:root{--atrium-primary:#f2e8dc;--atrium-secondary:#f5d8c6;--atrium-chocolate:#2d211d;--atrium-teal:#164f50;--atrium-brick:#b95638;--atrium-apricot:#edbb8c;--atrium-blue:#aebfca;--atrium-sage:#cbd3b5;--atrium-berry:#8b3155;--atrium-background:#ece9e2;--atrium-surface:#fffaf3;--atrium-surface-soft:#f4ded3;--atrium-surface-deep:#243638;--atrium-text:#302826;--atrium-muted:#706462;--atrium-border:#d6c4c3;--atrium-radius-small:6px;--atrium-radius-medium:18px;--atrium-radius-large:80px 80px 20px 20px;--atrium-shadow-soft:0 16px 40px rgba(61,39,32,.09);--atrium-shadow-deep:0 24px 70px rgba(25,22,20,.2);--atrium-container:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--atrium-background);color:var(--atrium-text);font:18px/1.65 "Palatino Linotype",Palatino,Georgia,serif;overflow-x:hidden}body.menu-open{overflow:hidden}img{display:block;max-width:100%;object-fit:cover}a{color:inherit}h1,h2,h3,h4,p{margin-top:0}h1{font:clamp(3rem,7.6vw,7.2rem)/.9 "American Typewriter","Courier New",Georgia,serif;letter-spacing:-.06em;margin-bottom:30px}h1 em{color:var(--atrium-brick);font-style:normal}h2{font:700 clamp(2rem,4vw,4.4rem)/1.02 "Gill Sans Nova","Gill Sans",Calibri,sans-serif;letter-spacing:-.04em}h3,h4,.button,.site-nav{font-family:"Gill Sans Nova","Gill Sans",Calibri,sans-serif}h3{font-size:1.4rem;line-height:1.15}.container{width:min(var(--atrium-container),calc(100% - 48px));margin-inline:auto}.section{padding:110px 0}.eyebrow,.code,.edition-code{font:700 .72rem/1.2 Menlo,Monaco,Consolas,monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--atrium-brick)}.section-heading{max-width:800px;margin-bottom:48px}.section-heading>p:last-child{max-width:650px;color:var(--atrium-muted)}.button{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border:1px solid var(--atrium-brick);background:var(--atrium-brick);color:white;text-decoration:none;font-weight:700;font-size:.85rem;letter-spacing:.04em;border-radius:var(--atrium-radius-small);cursor:pointer}.button:hover{background:#913e2a}.button-quiet{background:transparent;color:var(--atrium-text)}.text-link{font-family:"Gill Sans",sans-serif;font-weight:700;text-underline-offset:6px}.button-row{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.skip-link{position:fixed;top:10px;left:10px;z-index:1000;background:white;padding:10px;transform:translateY(-150%)}.skip-link:focus{transform:none}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}:focus-visible{outline:3px solid var(--atrium-brick);outline-offset:4px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(245,216,198,.93);backdrop-filter:blur(15px);border-bottom:1px solid var(--atrium-teal);transition:.25s}.header-inner{max-width:1320px;margin:auto;min-height:82px;padding:10px 24px;display:flex;align-items:center;gap:22px}.site-header.compact .header-inner{min-height:64px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font:700 .92rem/1.05 "Gill Sans",sans-serif;max-width:190px}.brand img{width:42px;height:42px;border-radius:10px}.site-nav{margin-left:auto;display:flex;align-items:center;gap:18px}.site-nav a{font-size:.72rem;text-decoration:none;text-transform:uppercase;letter-spacing:.08em;border-top:3px solid transparent}.site-nav a:hover,.site-nav a.active{border-color:var(--atrium-brick)}.header-cta{font-size:.7rem}.menu-toggle{display:none;background:none;border:0;padding:10px}.menu-toggle span{display:block;width:25px;height:2px;background:var(--atrium-text);margin:5px}
.hero{min-height:760px;display:grid;grid-template-columns:minmax(230px,1fr) minmax(440px,2.1fr) minmax(230px,.9fr);gap:clamp(24px,4vw,70px);padding:72px max(24px,calc((100vw - 1320px)/2));align-items:center;background:var(--atrium-primary);position:relative}.hero-art{position:relative;padding:20px 0 0 28px}.hero-art:before{content:"";position:absolute;inset:0 22px 24px 0;background:var(--atrium-apricot);border-radius:100px 100px 18px 18px}.hero-art img{height:510px;width:100%;position:relative;border:2px solid var(--atrium-teal);border-radius:90px 90px 12px 12px}.vertical-label{writing-mode:vertical-rl;position:absolute;left:0;top:80px;font:700 .62rem Menlo,monospace;letter-spacing:.16em}.hero-art i{position:absolute;width:13px;height:13px;background:var(--atrium-berry);border-radius:50%;right:10px;top:80px}.hero-copy p:not(.eyebrow){max-width:660px}.hero-note{border-top:4px solid var(--atrium-brick);padding:28px 0;position:relative}.hero-note dl>div{border-top:1px solid var(--atrium-border);padding:13px 0;display:flex;gap:15px;align-items:baseline}.hero-note dt{font:3rem/.9 "American Typewriter",serif;color:var(--atrium-teal)}.hero-note dd{margin:0;font:700 .7rem Menlo,monospace;text-transform:uppercase}.hero-note>b{font:20rem/.7 "American Typewriter",serif;color:rgba(185,86,56,.08);position:absolute;right:-40px;bottom:-100px;pointer-events:none}
.voice-grid{display:grid;grid-template-columns:1.6fr .9fr;grid-template-rows:auto auto;gap:20px}.voice{display:grid;overflow:hidden;border-radius:var(--atrium-radius-medium);box-shadow:var(--atrium-shadow-soft)}.voice img{width:100%;height:230px}.voice>div{padding:28px}.voice span,.voice small,.voice a{display:block}.voice span{font:700 .7rem Menlo,monospace;text-transform:uppercase}.voice small{margin:14px 0}.voice a{font-family:"Gill Sans",sans-serif;font-weight:700}.voice-dark{grid-template-columns:1fr 1fr;background:var(--atrium-chocolate);color:white}.voice-dark img{height:100%}.voice-teal{grid-row:span 2;background:var(--atrium-teal);color:white}.voice-teal img{height:360px}.voice-apricot{grid-template-columns:.8fr 1.2fr;background:var(--atrium-apricot)}.voice-apricot img{height:100%}.voice-blue{grid-column:1/-1;grid-template-columns:1.7fr 1fr;background:var(--atrium-blue)}.voice-blue img{height:280px}.security{background:var(--atrium-chocolate);color:white;padding:70px 0}.security-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid #715d55}.security-grid article{padding:28px;border-right:1px solid #715d55}.security-grid article:last-child{border:0}.security-grid b{color:var(--atrium-apricot);font:700 .7rem Menlo,monospace}.disclaimer{font-size:.86rem;color:var(--atrium-muted);border-left:3px solid var(--atrium-brick);padding-left:16px;margin-top:26px}.security .disclaimer{color:#d2c7c0}.rooms{display:grid;grid-template-columns:1.5fr 8px .9fr 8px 1.1fr;gap:18px;align-items:stretch}.room{padding:45px;border-radius:70px 70px 12px 12px}.room ul{padding-left:20px}.fantasy{background:var(--atrium-chocolate);color:white}.warfare{background:var(--atrium-teal);color:white;margin-top:80px}.ancient{background:var(--atrium-apricot);margin-top:25px}.gallery-rail{background:var(--atrium-border);margin-block:45px}.feature{background:var(--atrium-secondary)}.feature header{position:relative;padding-left:150px}.feature-number{position:absolute;left:0;font:6rem/.8 "American Typewriter",serif;color:var(--atrium-brick)}.feature-image{width:100%;height:460px;border-radius:120px 120px 12px 12px;border:2px solid var(--atrium-teal)}.feature-columns{display:grid;grid-template-columns:1.25fr .75fr;gap:80px;padding:45px 8%}.feature-summary{display:grid;grid-template-columns:repeat(3,1fr);background:var(--atrium-chocolate);color:white;margin:0;padding:28px}.feature-summary div{padding:15px;border-left:1px solid #66544c}.feature-summary dt{font:700 .67rem Menlo,monospace;color:var(--atrium-apricot);text-transform:uppercase}.feature-summary dd{margin:5px 0}.third-party{text-align:right;font-size:.82rem}.ranking{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}.rank{position:relative;padding:28px;display:grid;gap:25px;border-radius:var(--atrium-radius-medium);box-shadow:var(--atrium-shadow-soft)}.rank img{width:100%;height:250px;border-radius:50px 50px 8px 8px}.rank ul{columns:3;padding-left:20px;font-size:.9rem}.rank small{display:block;margin:12px 0}.plaque{position:absolute;z-index:2;top:15px;left:15px;background:var(--atrium-brick);color:white;padding:8px 13px;font:700 1.1rem Menlo,monospace}.rank-1{grid-column:1/-1;grid-template-columns:1fr 1.4fr;background:var(--atrium-surface)}.rank-1 img{height:100%;order:2}.rank-2{grid-column:1/6;background:var(--atrium-chocolate);color:white}.rank-2 img{height:380px}.rank-3{grid-column:6/-1;grid-template-columns:.8fr 1.2fr;background:var(--atrium-sage)}.rank-4{grid-column:1/8;background:var(--atrium-surface);grid-template-columns:1fr 1fr}.rank-5{grid-column:8/-1;background:var(--atrium-teal);color:white}.rank-6{grid-column:2/12;background:var(--atrium-apricot);grid-template-columns:.85fr 1.15fr}.rank-7{grid-column:1/7;background:var(--atrium-teal);color:white}.rank-8{grid-column:7/-1;background:var(--atrium-blue)}.rank-9{grid-column:1/-1;background:var(--atrium-surface);grid-template-columns:1.2fr 1fr}.rank-9 img{order:2}.device-section{background:var(--atrium-sage)}.device-tabs{display:grid;grid-template-columns:250px 1fr;gap:30px}.device-tabs [role=tablist]{display:flex;flex-direction:column;gap:10px}.device-tabs [role=tab]{border:0;border-top:4px solid transparent;text-align:left;padding:20px;background:rgba(255,255,255,.45);font:700 .75rem Menlo,monospace;cursor:pointer}.device-tabs [role=tab] b{display:block;font:1.3rem "Gill Sans",sans-serif}.device-tabs [aria-selected=true]{transform:translateX(16px);border-color:var(--atrium-brick);background:white}.tab-panels{background:var(--atrium-surface);padding:55px;border-radius:70px 70px 12px 12px;min-height:280px}.benefit-ledges{display:grid;grid-template-columns:1fr 1fr;gap:70px 22%;padding:30px 0}.benefit-ledges article{border-top:5px solid var(--atrium-teal);padding:22px;background:var(--atrium-surface)}.benefit-ledges b,.principles b,.method b{font:700 .7rem Menlo,monospace;color:var(--atrium-brick)}.top-five{background:var(--atrium-chocolate);color:white}.highlight-list{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}.highlight-list article{padding:20px;display:grid;grid-template-columns:auto 120px 1fr;gap:18px;align-items:center;background:var(--atrium-surface);color:var(--atrium-text);border-radius:var(--atrium-radius-medium)}.highlight-list article:nth-child(1){grid-column:1/10}.highlight-list article:nth-child(2){grid-column:10/-1;grid-row:span 2;display:block;background:var(--atrium-sage)}.highlight-list article:nth-child(3){grid-column:1/10;background:var(--atrium-apricot)}.highlight-list article:nth-child(4){grid-column:2/8;background:var(--atrium-blue)}.highlight-list article:nth-child(5){grid-column:8/-1;background:var(--atrium-teal);color:white}.highlight-list img{width:120px;height:120px;border-radius:40px 40px 5px 5px}.highlight-list b{font:2.5rem "American Typewriter",serif}.principles,.framework-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.principles article{padding:28px;border-top:4px solid var(--atrium-brick);background:var(--atrium-surface)}.split-band{background:var(--atrium-blue)}.split{display:grid;grid-template-columns:1.4fr .8fr;gap:80px}.split aside{background:var(--atrium-surface);padding:35px;border-radius:50px 50px 10px 10px}.boundary{display:grid;grid-template-columns:1fr 1fr;gap:80px}.framework{background:var(--atrium-teal);color:white}.framework-grid{grid-template-columns:repeat(3,1fr)}.framework-grid article{padding:25px;border-top:1px solid #8cb0ac}.method{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.method article{padding:30px;background:var(--atrium-surface);border-radius:60px 60px 10px 10px}.how{background:var(--atrium-apricot)}.how ol{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.how li{padding:25px;border-top:4px solid var(--atrium-chocolate)}.how li>b{font:3rem "American Typewriter",serif}.notices>div{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.notices article{border-left:2px solid var(--atrium-berry);padding-left:20px}.accordion article{border-top:1px solid var(--atrium-border)}.accordion button{width:100%;padding:25px 0;border:0;background:none;display:flex;justify-content:space-between;text-align:left;font:700 1.25rem "Gill Sans",sans-serif;cursor:pointer}.accordion article>div{display:grid;grid-template-rows:0fr;transition:.3s}.accordion article>div>p{overflow:hidden}.accordion article.open>div{grid-template-rows:1fr}.contact{background:var(--atrium-secondary)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}.email{font:700 1.05rem Menlo,monospace;overflow-wrap:anywhere}.contact form{background:var(--atrium-surface);padding:40px;border-radius:70px 70px 12px 12px;box-shadow:var(--atrium-shadow-soft)}label{display:block;font:700 .78rem "Gill Sans",sans-serif;margin-bottom:18px}input,textarea{display:block;width:100%;margin-top:7px;padding:13px;border:1px solid var(--atrium-border);background:white;font:1rem Palatino,serif;border-radius:4px}.consent{display:flex;gap:10px;align-items:flex-start}.consent input{width:auto;margin-top:4px}.field-error{color:#8c2d25;font-size:.8rem;margin:4px 0}input.invalid,textarea.invalid{border:2px solid #8c2d25}.final-cta{background:linear-gradient(115deg,var(--atrium-chocolate),var(--atrium-teal));color:white;padding:100px 0;overflow:hidden}.final-cta .container{position:relative;padding-left:80px}.final-cta h2{max-width:750px}.final-cta b{position:absolute;right:0;top:-120px;font:20rem "American Typewriter",serif;color:rgba(255,255,255,.05)}.final-cta .vertical-label{left:20px;top:0}.site-footer{background:#201b19;color:#e9ded7;padding:70px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:60px}.footer-grid nav{display:flex;flex-direction:column;gap:8px;font-family:"Gill Sans",sans-serif}.footer-notes{font-size:.78rem;color:#b9aca6;border-top:1px solid #564943;margin-top:40px;padding-top:24px}.cookie-banner{position:fixed;z-index:80;left:24px;bottom:24px;width:min(520px,calc(100% - 48px));background:var(--atrium-surface);border:1px solid var(--atrium-border);box-shadow:var(--atrium-shadow-deep);padding:22px;display:none}.cookie-banner.show{display:block}.cookie-banner div{display:flex;gap:10px}.back-top{position:fixed;z-index:40;right:22px;bottom:22px;border:0;background:var(--atrium-brick);color:white;width:45px;height:45px;border-radius:50%;opacity:0;pointer-events:none}.back-top.show{opacity:1;pointer-events:auto}.reveal{opacity:0;transform:translateY(25px);transition:.6s}.reveal.visible{opacity:1;transform:none}
.internal-hero{padding:100px 0 80px;background:var(--atrium-secondary)}.internal-hero h1{font-size:clamp(3rem,7vw,6rem);max-width:900px}.prose{max-width:900px;margin:auto}.prose-section{padding:55px 0;border-bottom:1px solid var(--atrium-border)}.prose-section h2{font-size:clamp(1.8rem,3vw,3rem)}.prose-section h3{margin-top:35px}.checklist{background:var(--atrium-sage);padding:30px;border-radius:50px 50px 8px 8px}.legal .prose-section{padding:32px 0}.legal h2{font-size:2rem}
@media(max-width:1050px){.site-nav{position:fixed;inset:82px 0 auto 0;background:var(--atrium-surface);padding:30px;display:none;flex-direction:column;align-items:flex-start;box-shadow:var(--atrium-shadow-deep)}.site-nav.open{display:flex}.menu-toggle{display:block;margin-left:auto}.header-cta{display:none}.hero{grid-template-columns:.8fr 1.6fr}.hero-note{grid-column:1/-1;display:grid;grid-template-columns:1fr 2fr}.hero-note dl{display:flex;gap:30px}.hero-note>b{display:none}.rooms{grid-template-columns:1fr 1fr}.gallery-rail{display:none}.ancient{grid-column:1/-1}.principles{grid-template-columns:1fr 1fr}.notices>div{grid-template-columns:1fr 1fr}}
@media(max-width:768px){body{font-size:16px}.container{width:min(100% - 30px,var(--atrium-container))}.section{padding:75px 0}.hero{display:block;padding-top:35px}.hero-art{max-width:310px;margin-bottom:50px}.hero-art img{height:350px}.hero-note{display:block;margin-top:50px}.hero-note dl{display:grid;grid-template-columns:repeat(3,1fr)}.voice-grid,.voice,.voice-dark,.voice-apricot,.voice-blue,.rooms,.feature-columns,.feature-summary,.ranking,.rank,.rank-1,.rank-3,.rank-4,.rank-6,.rank-9,.device-tabs,.benefit-ledges,.principles,.split,.boundary,.framework-grid,.method,.how ol,.contact-grid,.footer-grid{display:block}.voice{margin-bottom:18px}.voice img,.voice-dark img,.voice-teal img,.voice-apricot img,.voice-blue img{height:240px}.room{margin:0 0 18px;padding:32px}.feature header{padding-left:0}.feature-number{position:static;display:block;font-size:4rem}.feature-image{height:300px}.feature-columns{padding:35px 0}.feature-summary div{border-left:0;border-top:1px solid #66544c}.rank{margin-bottom:18px;padding:22px}.rank img,.rank-1 img,.rank-9 img{height:230px;order:initial}.rank ul{columns:1}.device-tabs [role=tablist]{display:grid;grid-template-columns:1fr 1fr;margin-bottom:20px}.device-tabs [aria-selected=true]{transform:none}.tab-panels{padding:30px}.benefit-ledges article,.principles article,.framework-grid article,.method article,.how li{margin-bottom:15px}.highlight-list{display:block}.highlight-list article,.highlight-list article:nth-child(n){display:grid;margin-bottom:15px;grid-template-columns:auto 80px 1fr}.highlight-list img{width:80px;height:100px}.notices>div{display:block}.notices article{margin-bottom:25px}.contact form{padding:28px}.footer-grid nav{margin-top:25px}.security-grid{grid-template-columns:1fr 1fr}.final-cta .container{padding-left:45px}}
@media(max-width:480px){.header-inner{padding-inline:14px}.brand span{max-width:130px}.security-grid{display:block}.security-grid article{border-right:0;border-bottom:1px solid #715d55}.hero-note dl{display:block}.hero-note dl>div{justify-content:flex-start}.device-tabs [role=tablist]{display:block}.device-tabs [role=tab]{width:100%}.highlight-list article,.highlight-list article:nth-child(n){grid-template-columns:auto 1fr}.highlight-list img{grid-column:1/-1;width:100%;height:180px}.final-cta .container{padding-left:15px}.final-cta .vertical-label{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.reveal{opacity:1;transform:none}}