:root{color-scheme:light;--paper:#f4f6f3;--surface:#ffffff;--ink:#141a16;--ink-deep:#0c110e;--teal:#00675b;--teal-deep:#004c43;--teal-tint:#e2eeea;--orange:#d4581e;--orange-tint:#fbeee4;--muted:#57645e;--faint:#6e7973;--line:#dde3dd;--line-strong:#c2cbc4;--grid-line:rgba(20,26,22,0.055);--hover-wash:rgba(20,26,22,0.07);--nav-bg:rgba(244,246,243,0.94);--nav-bg-blur:rgba(244,246,243,0.82);--cta-text:#ffffff;--dark-text:#edf2ee;--dark-muted:#9daba3;--dark-line:rgba(237,242,238,0.16);--dark-surface:#161d18;--font-display:"Archivo","Helvetica Neue",Arial,sans-serif;--font-body:"IBM Plex Sans",-apple-system,"Segoe UI",Roboto,sans-serif;--font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--nav-h:68px;--radius:10px;--radius-sm:7px;--container:1160px;--banner-height:0px;--focus-ring:0 0 0 2px var(--paper),0 0 0 4px var(--teal)}@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;--paper:#0f1412;--surface:#171d1a;--ink:#e9efe9;--ink-deep:#0b0f0d;--teal:#3cb8a4;--teal-deep:#5accbb;--teal-tint:#1d2b27;--orange:#e08a4f;--orange-tint:#291d13;--muted:#a3afa8;--faint:#8a958e;--line:#28302b;--line-strong:#3d4741;--grid-line:rgba(233,239,233,0.05);--hover-wash:rgba(233,239,233,0.08);--nav-bg:rgba(15,20,18,0.94);--nav-bg-blur:rgba(15,20,18,0.82);--cta-text:#0f1412}}:root[data-theme="dark"]{color-scheme:dark;--paper:#0f1412;--surface:#171d1a;--ink:#e9efe9;--ink-deep:#0b0f0d;--teal:#3cb8a4;--teal-deep:#5accbb;--teal-tint:#1d2b27;--orange:#e08a4f;--orange-tint:#291d13;--muted:#a3afa8;--faint:#8a958e;--line:#28302b;--line-strong:#3d4741;--grid-line:rgba(233,239,233,0.05);--hover-wash:rgba(233,239,233,0.08);--nav-bg:rgba(15,20,18,0.94);--nav-bg-blur:rgba(15,20,18,0.82);--cta-text:#0f1412}*{margin:0;padding:0;box-sizing:border-box}html{overflow-x:hidden;scroll-behavior:smooth}body{font-family:var(--font-body);font-size:16.5px;line-height:1.65;background-color:var(--paper);color:var(--ink);padding-top:var(--banner-height,0);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;-webkit-tap-highlight-color:transparent}h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-0.015em;line-height:1.15;font-weight:700}p{margin:0}a{color:var(--teal)}::selection{background:var(--teal);color:var(--cta-text)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:6px}.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}.skip-link{position:absolute;top:-100%;left:1rem;z-index:10000;padding:0.5rem 1rem;background:var(--ink);color:var(--paper);border-radius:6px;font-weight:600;text-decoration:none}.skip-link:focus{top:1rem}.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:0.76rem;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--teal)}.eyebrow::before{content:"";width:16px;height:11px;flex:none;background:repeating-linear-gradient( to bottom,var(--teal) 0 2px,transparent 2px 5px )}.eyebrow--orange{color:var(--orange)}.eyebrow--orange::before{background:repeating-linear-gradient( to bottom,var(--orange) 0 2px,transparent 2px 5px )}.section-head{max-width:720px;margin-bottom:3rem}.section-head h2{font-size:clamp(1.8rem,3.4vw,2.5rem);margin:0.9rem 0 0.8rem}.section-head p{color:var(--muted);font-size:1.05rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.55rem;font-family:var(--font-body);font-size:0.95rem;font-weight:600;line-height:1;padding:0.85rem 1.4rem;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background-color 0.15s ease,border-color 0.15s ease,color 0.15s ease}.btn svg{width:16px;height:16px;flex:none;fill:currentColor}.btn-primary{background:var(--teal);color:var(--cta-text)}.btn-primary:hover{background:var(--teal-deep)}.btn-secondary{background:transparent;color:var(--ink);border-color:var(--line-strong)}.btn-secondary:hover{border-color:var(--ink)}.btn:active{transform:translateY(1px)}.text-link{color:var(--teal);font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px}.text-link:hover{color:var(--teal-deep)}.navbar_container{position:fixed;top:var(--banner-height,0);left:0;right:0;z-index:1000;background:var(--nav-bg);border-bottom:1px solid var(--line)}@supports (backdrop-filter:blur(8px)){.navbar_container{background:var(--nav-bg-blur);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}}.navbar{max-width:var(--container);margin:0 auto;padding:0 24px;height:var(--nav-h);display:flex;align-items:center}.navbar_content{display:flex;align-items:center;justify-content:space-between;width:100%;gap:1.5rem}.navbar_brand a{text-decoration:none;display:flex;align-items:center;gap:0.6rem;color:var(--ink)}.navbar_brand img{height:30px;width:30px;display:block}.navbar_brand .brand-name{font-family:var(--font-display);font-weight:700;font-size:1.08rem;letter-spacing:-0.01em;white-space:nowrap}.official-badge{font-family:var(--font-mono);font-size:0.62rem;font-weight:500;letter-spacing:0.12em;color:var(--teal);border:1px solid var(--teal);padding:2px 6px;border-radius:4px;line-height:1.2;text-transform:uppercase}.navbar_links{display:flex;gap:1.7rem;margin-left:auto}.navbar_links a{text-decoration:none;color:var(--muted);font-weight:500;font-size:0.94rem;transition:color 0.15s}.navbar_links a:hover{color:var(--ink)}.navbar_links a.is-active,.mobile-menu .nav-link.is-active{color:var(--teal);font-weight:600}.navbar .btn{padding:0.6rem 1.1rem;font-size:0.9rem;flex:none}.menu-btn{display:none;align-items:center;justify-content:center;background:transparent;outline:none;border:none;color:var(--ink);cursor:pointer}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--muted);cursor:pointer;flex:none;transition:color 0.15s,background-color 0.15s}.theme-toggle:hover{color:var(--ink);background:var(--hover-wash)}.theme-toggle svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.theme-toggle .icon-sun{display:none}@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .theme-toggle .icon-moon{display:none}:root:not([data-theme="light"]) .theme-toggle .icon-sun{display:block}}:root[data-theme="dark"] .theme-toggle .icon-moon{display:none}:root[data-theme="dark"] .theme-toggle .icon-sun{display:block}.mobile-menu{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:var(--paper);z-index:9999999;padding:24px;flex-direction:column;align-items:flex-start;justify-content:center;gap:6px;transition:transform 0.25s ease,opacity 0.25s ease;transform:translateY(-100%);opacity:0}.mobile-menu.active{transform:translateY(0);opacity:1}.mobile-menu .nav-link{font-family:var(--font-display);font-size:1.6rem;font-weight:600;letter-spacing:-0.01em;padding:10px 0;text-decoration:none;color:var(--ink)}.mobile-menu .nav-link:hover{color:var(--teal)}.mobile-menu .btn{margin-top:1.5rem}.close-btn{position:absolute;top:20px;right:20px;background:none;border:none;color:var(--ink);cursor:pointer}.menu-btn,.close-btn{min-width:44px;min-height:44px}.close-btn{display:inline-flex;align-items:center;justify-content:center}.hero{position:relative;padding:calc(var(--nav-h) + 5rem) 0 5rem;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:44px 44px;background-position:center top}.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:140px;background:linear-gradient(to bottom,transparent,var(--paper));pointer-events:none}.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1.04fr 1fr;gap:4rem;align-items:center}.hero-copy h1{font-size:clamp(2.4rem,4.6vw,3.7rem);font-weight:800;letter-spacing:-0.028em;line-height:1.04;margin:1.1rem 0 1.2rem}.hero-copy .hero-sub{font-size:1.1rem;color:var(--muted);max-width:34rem;margin-bottom:2rem}.hero-cta-group{display:flex;gap:0.8rem;align-items:center;flex-wrap:wrap}.hero-meta{display:flex;flex-wrap:wrap;gap:0.5rem 1.6rem;margin-top:1.8rem;font-family:var(--font-mono);font-size:0.78rem;color:var(--faint);letter-spacing:0.02em}.hero-meta span::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--teal);margin-right:8px;vertical-align:1px}.hero-visual{position:relative}.print-frame{position:relative;border:1px solid var(--line-strong);border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:0 1px 2px rgba(12,17,14,0.05),0 12px 32px -16px rgba(12,17,14,0.18)}.print-frame img{width:100%;height:auto;display:block}.print-layers{position:absolute;inset:0;pointer-events:none}.print-layers span{position:absolute;left:0;right:0;height:12.75%;top:calc(var(--i) * 12.5%);background:var(--paper);opacity:1;animation:layer-set 0.4s ease-out forwards;animation-delay:calc(0.15s + (7 - var(--i)) * 0.11s)}@keyframes layer-set{to{opacity:0}}.hero-visual .corner-mark{position:absolute;width:15px;height:15px;color:var(--teal);pointer-events:none}.corner-mark::before,.corner-mark::after{content:"";position:absolute;background:currentColor}.corner-mark::before{left:7px;top:0;width:1.5px;height:15px}.corner-mark::after{top:7px;left:0;height:1.5px;width:15px}.corner-mark--tl{top:-22px;left:-22px}.corner-mark--br{bottom:4px;right:-22px}.print-caption{display:flex;justify-content:space-between;gap:1rem;margin-top:0.8rem;font-family:var(--font-mono);font-size:0.72rem;letter-spacing:0.05em;color:var(--faint);text-transform:uppercase}.section{padding:5.5rem 0}.section--line{border-top:1px solid var(--line)}.feature-group{display:grid;grid-template-columns:320px 1fr;gap:3rem;padding:3rem 0;border-top:1px solid var(--line)}.feature-group:last-child{padding-bottom:0}.feature-group-label .group-index{font-family:var(--font-mono);font-size:0.76rem;letter-spacing:0.14em;color:var(--faint)}.feature-group-label h3{font-size:1.55rem;margin:0.6rem 0 0.7rem;letter-spacing:-0.02em}.feature-group-label p{color:var(--muted);font-size:0.98rem;max-width:26rem}.spec-rows{display:flex;flex-direction:column}.spec-row{display:grid;grid-template-columns:240px 1fr;gap:1.5rem;padding:1.15rem 0}.spec-row + .spec-row{border-top:1px solid var(--line)}.spec-row h4{font-family:var(--font-body);font-size:1rem;font-weight:600;letter-spacing:0;line-height:1.5}.spec-row p{color:var(--muted);font-size:0.97rem}.oss-band{border-top:1px solid var(--line);padding:5.5rem 0}.oss-band .container{display:grid;grid-template-columns:1.1fr 1fr;gap:4rem;align-items:center}.oss-band h2{font-size:clamp(1.8rem,3.2vw,2.4rem);margin:0.9rem 0 1rem}.oss-band .oss-copy p{color:var(--muted);font-size:1.03rem;margin-bottom:1.9rem;max-width:32rem}.oss-band .oss-cta{display:flex;gap:0.8rem;flex-wrap:wrap}.oss-readout{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:0.6rem 1.5rem;font-family:var(--font-mono);font-size:0.88rem}.oss-readout .readout-row{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;padding:0.85rem 0}.oss-readout .readout-row + .readout-row{border-top:1px solid var(--line)}.oss-readout .readout-key{color:var(--faint);font-size:0.78rem;letter-spacing:0.1em;text-transform:uppercase}.oss-readout .readout-val{color:var(--ink);text-align:right}.oss-readout a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}.platform-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}.platform-tile{display:flex;align-items:center;gap:1.1rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem 1.5rem;text-decoration:none;color:var(--ink);transition:border-color 0.15s ease}.platform-tile:hover{border-color:var(--teal)}.platform-tile svg{width:30px;height:30px;fill:var(--ink);flex:none}.platform-tile .tile-name{font-weight:600;font-size:1.02rem;display:block;line-height:1.3}.platform-tile .tile-formats{font-family:var(--font-mono);font-size:0.7rem;letter-spacing:0.08em;color:var(--faint);text-transform:uppercase}.platform-tile .tile-arrow{margin-left:auto;color:var(--faint);transition:color 0.15s ease,transform 0.15s ease}.platform-tile:hover .tile-arrow{color:var(--teal);transform:translateX(3px)}.download-note{margin-top:1.4rem;font-size:0.9rem;color:var(--muted)}.faq-list{max-width:760px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:baseline;justify-content:space-between;gap:1.5rem;padding:1.2rem 0.2rem;font-weight:600;font-size:1.02rem}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";font-family:var(--font-mono);font-size:1.1rem;color:var(--teal);flex:none;transition:transform 0.15s ease}.faq-item[open] summary::after{content:"−"}.faq-item .faq-body{padding:0 0.2rem 1.3rem;color:var(--muted);max-width:40rem}.page-hero{padding:calc(var(--nav-h) + 4.5rem) 0 3.5rem;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:44px 44px;position:relative}.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:90px;background:linear-gradient(to bottom,transparent,var(--paper));pointer-events:none}.page-hero .container{position:relative;z-index:1}.page-hero h1{font-size:clamp(2.1rem,4vw,3rem);font-weight:800;letter-spacing:-0.025em;margin:1rem 0 1rem;max-width:48rem}.page-hero .page-sub{font-size:1.08rem;color:var(--muted);max-width:42rem}.hero-split{display:grid;grid-template-columns:1.15fr 1fr;gap:3.5rem;align-items:center}.about-illustration img{width:100%;height:auto;max-width:420px;display:block;margin:0 auto;border-radius:var(--radius);box-shadow:0 1px 2px rgba(12,17,14,0.05),0 12px 32px -16px rgba(12,17,14,0.18)}@media (max-width:880px){.hero-split{grid-template-columns:1fr;gap:2.5rem}}.version-line{display:inline-flex;align-items:center;gap:0.9rem;margin-top:1.6rem;font-family:var(--font-mono);font-size:0.85rem;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:0.45rem 1.1rem}.version-line .version-key{color:var(--faint);font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase}.version-line .version-number{color:var(--teal);font-weight:500}.changelog-link{color:var(--muted);text-decoration:underline;text-underline-offset:3px}.changelog-link:hover{color:var(--ink)}.platform-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}.platform-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem 1.6rem;display:flex;flex-direction:column}.platform-icon{display:flex;align-items:center;gap:0.8rem;margin-bottom:1.4rem;padding-bottom:1.2rem;border-bottom:1px solid var(--line)}.platform-icon svg{width:26px;height:26px;fill:var(--ink)}.platform-icon h3{font-size:1.15rem;letter-spacing:-0.01em}.download-buttons,.nightly-downloads{display:flex;flex-direction:column;gap:0.6rem}.download-option{display:block;padding:0.7rem 1rem;background:var(--paper);border:1px solid var(--line);color:var(--ink);text-decoration:none;border-radius:var(--radius-sm);font-weight:500;font-size:0.93rem;text-align:center;transition:border-color 0.15s ease,background-color 0.15s ease}.download-option:hover{border-color:var(--teal);background:var(--teal-tint)}.nightly-downloads{max-height:348px;margin:-4px;padding:4px;scroll-padding:4px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.nightly-downloads::-webkit-scrollbar{width:6px}.nightly-downloads::-webkit-scrollbar-track{background:transparent}.nightly-downloads::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}.no-builds-message{color:var(--faint);font-family:var(--font-mono);font-size:0.82rem;padding:0.6rem 0;text-align:center}.nightly-tag{font-family:var(--font-mono);font-size:0.66rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--orange);border:1px solid currentColor;border-radius:4px;padding:2px 7px;margin-left:auto}.requirements-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}.requirement-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem}.requirement-card h3{font-size:1.1rem;display:flex;align-items:center;gap:0.7rem;padding-bottom:1rem;margin-bottom:0.6rem;border-bottom:1px solid var(--line)}.requirement-card h3 svg{width:20px;height:20px;fill:var(--ink)}.requirement-card ul{list-style:none}.requirement-card li{padding:0.45rem 0;color:var(--muted);font-size:0.95rem;display:flex;gap:10px;align-items:baseline}.requirement-card li::before{content:"";flex:none;width:10px;height:2px;background:var(--teal);align-self:center}.installation-steps{max-width:820px;counter-reset:step}.installation-step{position:relative;padding:1.6rem 0 1.6rem 74px;counter-increment:step}.installation-step + .installation-step{border-top:1px solid var(--line)}.installation-step::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:1.75rem;font-family:var(--font-mono);font-size:0.95rem;color:var(--teal)}.installation-step::after{content:"";position:absolute;left:0;top:3.4rem;width:26px;height:7px;background:repeating-linear-gradient( to bottom,var(--line-strong) 0 1.5px,transparent 1.5px 4px )}.installation-step h3{font-size:1.12rem;margin-bottom:0.5rem}.installation-step p,.installation-step .step-body{color:var(--muted);font-size:0.97rem}.installation-step strong{color:var(--ink)}.about-section{padding:4.5rem 0}.about-prose{max-width:720px}.about-prose h2{font-size:clamp(1.6rem,2.8vw,2.1rem);margin:0.9rem 0 1rem}.about-prose p{color:var(--muted);font-size:1.03rem;margin-bottom:1rem}.about-prose a{color:var(--teal);font-weight:500}.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.5rem}.about-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem}.about-card h3{font-size:1.05rem;margin-bottom:0.6rem}.about-card p{color:var(--muted);font-size:0.95rem}.about-card a{color:var(--teal);font-weight:500}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem;display:flex;flex-direction:column;align-items:flex-start}.contact-card .card-icon{width:38px;height:38px;border-radius:var(--radius-sm);background:var(--teal-tint);color:var(--teal);display:flex;align-items:center;justify-content:center;margin-bottom:1.1rem}.contact-card .card-icon svg{width:18px;height:18px;fill:currentColor}.contact-card h3{font-size:1.08rem;margin-bottom:0.45rem}.contact-card p{color:var(--muted);font-size:0.96rem;margin-bottom:1.2rem}.contact-card .btn{margin-top:auto}.contact-rows{border-top:1px solid var(--line);max-width:860px}.contact-row{display:grid;grid-template-columns:220px 1fr;gap:1.5rem;padding:1.3rem 0;border-bottom:1px solid var(--line)}.contact-row h3{font-size:1rem;font-family:var(--font-body);font-weight:600;letter-spacing:0}.contact-row p{color:var(--muted);font-size:0.96rem}.footer{background:var(--paper);border-top:1px solid var(--line);color:var(--muted);padding:4.5rem 0 2.5rem}.footer a{color:var(--muted);text-decoration:none;transition:color 0.15s}.footer a:hover{color:var(--ink)}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:3rem;padding-bottom:3rem;border-bottom:1px solid var(--line)}.footer-brand .brand-row{display:flex;align-items:center;gap:0.7rem;color:var(--ink);font-family:var(--font-display);font-weight:700;font-size:1.1rem;margin-bottom:1rem}.footer-brand img{height:34px;width:34px}.footer-brand p{font-size:0.92rem;max-width:21rem;margin-bottom:1.2rem}.footer-domains{font-family:var(--font-mono);font-size:0.78rem;line-height:2}.footer-domains a{color:var(--teal)}.footer-col h4{font-family:var(--font-mono);font-size:0.72rem;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--faint);margin-bottom:1.1rem}.footer-col ul{list-style:none}.footer-col li{margin-bottom:0.7rem;font-size:0.94rem}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:2rem;font-family:var(--font-mono);font-size:0.76rem;letter-spacing:0.03em}.footer-bottom .footer-social{display:flex;gap:1.1rem}.footer-social a{display:inline-flex}.footer-social svg{width:18px;height:18px;fill:currentColor}.footer-legal{display:flex;gap:1.5rem;flex-wrap:wrap}.footer-legal a{text-decoration:underline;text-underline-offset:3px}@media (max-width:1024px){.hero .container{gap:2.5rem}.feature-group{grid-template-columns:260px 1fr;gap:2rem}.spec-row{grid-template-columns:200px 1fr}}@media (max-width:880px){.menu-btn{display:inline-flex}.navbar_links,.navbar .btn{display:none}.mobile-menu{display:flex}.hero .container{grid-template-columns:1fr;gap:3rem}.hero{padding-top:calc(var(--nav-h) + 3.5rem)}.hero-copy .hero-sub{max-width:none}.oss-band .container{grid-template-columns:1fr;gap:2.5rem}.feature-group{grid-template-columns:1fr;gap:1.5rem;padding:2.5rem 0}.platform-strip,.platform-cards,.requirements-grid,.about-grid{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:2.5rem}}@media (max-width:640px){body{font-size:16px}.section{padding:4rem 0}.spec-row{grid-template-columns:1fr;gap:0.3rem}.contact-row{grid-template-columns:1fr;gap:0.4rem}.installation-step{padding-left:52px}.footer-grid{grid-template-columns:1fr;gap:2rem}.footer-bottom{flex-direction:column;align-items:flex-start}.corner-mark{display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.print-layers{display:none}.btn,.platform-tile,.download-option{transition:none}}@supports (padding:env(safe-area-inset-top)){body{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);padding-bottom:env(safe-area-inset-bottom)}}.lang-switcher{position:relative;display:inline-flex}.lang-toggle{display:inline-flex;align-items:center;justify-content:center;gap:2px;min-width:40px;min-height:40px;padding:0 6px;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--muted);cursor:pointer;flex:none;transition:color 0.15s,background-color 0.15s}.lang-toggle:hover{color:var(--ink);background:var(--hover-wash)}.lang-toggle .icon-globe{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.lang-toggle .icon-caret{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.lang-menu{position:absolute;top:calc(100% + 8px);right:0;z-index:60;margin:0;padding:6px;min-width:160px;list-style:none;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 1px 2px rgba(12,17,14,0.05),0 12px 32px -16px rgba(12,17,14,0.18)}.lang-menu[hidden]{display:none}.lang-menu button{display:block;position:relative;width:100%;padding:8px 10px 8px 26px;border:0;border-radius:var(--radius-sm);background:none;color:inherit;font:inherit;font-size:0.9rem;text-align:left;cursor:pointer}.lang-menu button:hover{background:var(--hover-wash)}.lang-menu button[aria-current="true"]::before{content:"✓";position:absolute;left:9px;color:var(--teal)}.lang-switcher--mobile{display:flex;flex-direction:column}