@font-face{font-family:Rubik;src:url('/fonts/RubikLight/RubikLight.woff2') format('woff2');font-weight:300;font-display:swap}@font-face{font-family:Rubik;src:url('/fonts/RubikMedium/RubikMedium.woff2') format('woff2');font-weight:500 800;font-display:swap}:root{--paper:#f7f8fa;--ink:#101216;--red:#ed3b35;--line:#d7dbe1;--muted:#656c78;--white:#fff;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Rubik,Arial,sans-serif;font-weight:300;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--red);outline-offset:6px}button{color:inherit}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500}p{line-height:1.65}img{max-width:100%;display:block}svg{display:block}button,select{border:0;background:none}section[id]{scroll-margin-top:95px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:fixed;top:-80px;left:20px;background:var(--ink);color:var(--white);padding:15px;z-index:10}.skip:focus{top:15px}.header{display:flex;align-items:center;justify-content:space-between;gap:24px;height:100px;padding:0 4.5%;border-bottom:1px solid var(--line);background:rgba(247,248,250,.97);position:relative;z-index:3}.brand{display:flex;align-items:center;gap:10px;font-size:30px;font-weight:500;letter-spacing:-1.5px}.brand img{width:25px;height:31px}.brand-dot{font-size:10px;vertical-align:super;letter-spacing:0;margin-left:3px}.header nav{display:flex;gap:35px;font-size:13px;font-weight:500}.header nav a{position:relative;padding:10px 0}.header nav a:after{content:'';position:absolute;left:0;right:100%;height:1px;bottom:3px;background:var(--red);transition:right .2s}.header nav a:hover:after{right:0}.header-right{display:flex;gap:28px;align-items:center}select{font-size:12px;font-weight:500;padding:7px 16px 7px 0;cursor:pointer}.header-download{font-size:12px;font-weight:500;display:flex;align-items:center;gap:20px;border:1px solid var(--ink);padding:13px 17px}.header-download:hover{background:var(--ink);color:var(--paper)}.hero{display:grid;grid-template-columns:1.17fr 1fr;min-height:710px;padding:0 4.5%;overflow:hidden}.hero-copy{padding:71px 7% 33px 0;display:flex;flex-direction:column;align-items:flex-start;position:relative;z-index:1}.eyebrow{font-size:10px;font-weight:500;letter-spacing:1.5px;display:flex;align-items:center;gap:13px}.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--red)}h1{font-size:clamp(60px,6.7vw,110px);line-height:1.02;letter-spacing:-5px;margin:40px 0 30px;max-width:780px}.serif{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.07em}.hero-description{font-size:16px;max-width:415px;color:var(--muted);line-height:1.7}.hero-actions{display:flex;gap:28px;align-items:center;margin-top:37px;flex-wrap:wrap}.button{padding:19px 21px;display:inline-flex;justify-content:space-between;gap:35px;align-items:center;font-size:12px;font-weight:500;transition:background .2s,transform .2s}.button.dark{background:var(--ink);color:var(--paper)}.button.dark:not(.disabled):hover{background:var(--red);transform:translateY(-2px)}.button span:last-child{font-size:19px;line-height:1}.text-link{font-size:12px;font-weight:500;display:inline-flex;align-items:center;gap:20px;padding:10px 0;border-bottom:1px solid var(--ink)}.text-link:hover{color:var(--red);border-color:var(--red)}.hero-meta{font-size:9px;letter-spacing:1px;display:flex;gap:24px;margin-top:auto;padding-top:72px;font-weight:500}.hero-meta span:last-child{color:var(--muted)}.status-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:var(--red);flex-shrink:0}.intro-strip{background:var(--red);display:flex;justify-content:space-between;align-items:center;padding:23px 4.5%;color:#ffffff;font-size:10px;letter-spacing:1.9px;font-weight:500;gap:20px}.strip-star{font-size:28px;font-weight:300;line-height:1}.section{padding:110px 4.5%}.section-heading{display:grid;grid-template-columns:1fr 2.3fr;gap:50px;margin-bottom:60px}.section-heading .eyebrow{align-self:start;margin-top:12px}.section-num{color:var(--red);font:10px monospace;letter-spacing:0;margin-right:5px}h2{font-size:clamp(40px,4.5vw,72px);line-height:1.08;letter-spacing:-3px}.section-intro{max-width:590px;color:var(--muted);font-size:15px;margin-top:24px}.messenger-content{display:grid;grid-template-columns:1fr 1.18fr;gap:8%}.hardware{background:#101216;color:var(--paper);display:grid;grid-template-columns:.95fr 1.2fr;padding:85px 4.5% 30px;gap:3%;overflow:hidden}.hardware-intro{padding-top:15px}.hardware-intro h2{margin:35px 0 25px;font-size:clamp(48px,5vw,80px)}.hardware-intro p{max-width:375px;font-size:14px;color:#b3bccb;margin-bottom:25px}.text-link.light{border-color:#7f8a9c}.hardware-stamp{margin-top:75px;display:flex;flex-direction:column;gap:8px}.hardware-stamp>span:first-child{font-size:24px;font-weight:500;letter-spacing:-1px}.hardware-stamp>span:last-child{font:8px monospace;letter-spacing:1.5px;color:#7f8a9c}.hardware-viewer{min-width:0}.hardware-view-head{display:flex;justify-content:space-between;font:9px monospace;color:#b3bccb;padding:15px 0;border-top:1px solid #303743}.hardware-viewer img{width:100%;height:450px;object-fit:contain;margin-top:-4px;transition:opacity .2s}.hardware-view-controls{display:flex;border-top:1px solid #303743;border-bottom:1px solid #303743;justify-content:space-around;gap:8px}.hardware-view-controls button{color:#aab4c4;font-size:10px;padding:17px 6px;border-bottom:2px solid transparent}.hardware-view-controls button.active{color:var(--paper);border-bottom-color:var(--red)}.hardware-view-controls button:disabled{color:#525d6e}.hardware-note{font-size:9px;color:#9da8ba;margin-top:17px;line-height:1.6}.hardware-measurements{grid-column:1/-1;display:flex;gap:40px;margin-top:20px}.measurement{display:flex;gap:10px;align-items:baseline}.measurement strong{font-size:26px;font-weight:300}.measurement span{font:9px monospace;color:#9da8ba;text-transform:uppercase}.connection{padding-bottom:100px}.connection-diagram{display:flex;align-items:center;justify-content:space-between;background:#edf0f4;padding:55px 6%;min-height:295px;gap:25px}.diagram-node{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:110px}.diagram-node strong{font-size:14px;font-weight:500}.diagram-node small{font-size:10px;color:var(--muted)}.diagram-gsmbox{height:71px;width:105px;border:1px solid var(--ink);border-radius:7px 7px 13px 13px;background:#20252d;transform:skewY(-7deg);box-shadow:5px 7px 0 #778294;margin-bottom:20px;position:relative;display:flex;align-items:center;justify-content:center;color:#f7f8fa;font-size:13px;font-weight:500;letter-spacing:-.6px}.diagram-gsmbox i{position:absolute;width:25px;height:8px;background:#b3bccb;top:15px;left:10px}.diagram-router{position:relative;border:1px solid var(--ink);width:104px;height:32px;margin:39px 0 20px;border-radius:4px;background:#d7dbe1}.diagram-router>i{position:absolute;height:43px;width:4px;border:1px solid var(--ink);bottom:32px;left:12px;transform:rotate(-12deg)}.diagram-router>i:nth-child(2){left:auto;right:12px;transform:rotate(12deg)}.diagram-router span{letter-spacing:4px;position:absolute;left:13px;top:5px;color:var(--red)}.diagram-link{flex:1;align-self:center;margin-top:-55px;text-align:center;min-width:50px}.diagram-link>span{font:9px monospace;color:var(--muted);white-space:nowrap}.diagram-link>div{border-top:1px solid #7f8a9c;margin-top:12px;position:relative}.diagram-link i{position:absolute;width:5px;height:5px;background:var(--red);border-radius:50%;top:-3px;left:50%}.diagram-globe{height:71px;width:71px;border:1px solid var(--ink);border-radius:50%;position:relative;margin-bottom:20px}.diagram-globe i{position:absolute;top:0;bottom:0;width:30px;border:1px solid var(--ink);border-radius:50%;left:20px}.diagram-globe i:nth-child(2){height:30px;width:71px;left:-1px;top:20px}.connection-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:6%;margin-top:40px}.connection-steps>div{border-top:1px solid var(--line);padding-top:22px}.connection-steps span{font:10px monospace;color:var(--red)}.connection-steps h3{font-size:17px;margin:20px 0 13px;letter-spacing:-.4px}.connection-steps p{font-size:12px;color:var(--muted)}.technology{border-top:1px solid var(--line)}.tech-layout{display:grid;grid-template-columns:1fr 1.12fr;gap:8%;margin-bottom:80px}.architecture{padding:27px 32px;border:1px solid #cbd1da}.architecture-label{font:9px monospace;letter-spacing:1.4px;margin-bottom:25px}.architecture-block{display:flex;align-items:center;flex-wrap:wrap;gap:15px;border:1px solid var(--line);padding:19px 16px}.architecture-block>span{font:9px monospace;color:var(--red)}.architecture-block strong{font-size:12px;font-weight:500}.architecture-block small{font:9px monospace;margin-left:auto;color:var(--muted)}.architecture-arrow{display:block;text-align:center;padding:8px 0;font-size:15px;color:#8a96a7}.architecture>p{font-size:10px;color:var(--muted);margin-top:23px;line-height:1.7}.technical-details details{border-top:1px solid var(--line);padding:23px 0}.technical-details details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}.technical-details summary{display:flex;justify-content:space-between;gap:20px;font-size:18px;font-weight:500;letter-spacing:-.5px}.technical-details summary b{font-weight:300;font-size:23px}.technical-details details[open] summary b{transform:rotate(45deg);color:var(--red)}.technical-details details p{font-size:13px;color:var(--muted);padding-top:19px;max-width:480px}.dependency-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:27px}.dependency-heading h3{font-size:28px;letter-spacing:-1px}.mono{font:9px monospace;letter-spacing:1px}.table-scroll{overflow:auto}.dependencies{width:100%;border-collapse:collapse;text-align:left}.dependencies th{font:9px monospace;letter-spacing:1px;text-transform:uppercase;background:#e3e7ed;padding:15px 17px}.dependencies td{padding:21px 17px;border-bottom:1px solid var(--line);font-size:12px}.dependencies td:first-child{font-weight:500}.dependencies td:nth-child(2),.dependencies td:nth-child(4){font:11px monospace}.dependencies td:nth-child(3){color:var(--muted)}.audit-note{display:flex;gap:12px;align-items:baseline;margin-top:23px;font-size:10px;color:var(--muted)}.audit-note p{max-width:800px}.audit-note a{white-space:nowrap;margin-left:auto;text-decoration:underline;text-underline-offset:3px}.download{background:#e3e7ed;display:grid;grid-template-columns:1.1fr 1fr;gap:8%;padding-top:90px;padding-bottom:90px}.download-copy h2{font-size:clamp(60px,6.4vw,100px);margin:37px 0 24px;letter-spacing:-4px}.download-copy p{max-width:330px;font-size:14px;color:var(--muted)}.android-mark{font-size:95px;line-height:1;margin-top:30px;font-weight:300;color:var(--red)}.release-card{background:#ffffff;padding:30px 32px;align-self:center}.release-top{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid #d7dbe1;padding-bottom:22px;font:10px monospace}.release-top span:last-child{font-size:8px;color:#656c78;text-align:right}.release-version{font-size:30px;letter-spacing:-1px;font-weight:500;margin-top:28px;line-height:1.2}.release-meta{font:10px monospace;color:var(--muted);margin:14px 0}.release-card>p{font-size:12px;color:var(--muted);margin:15px 0 25px}.release-card .button{width:100%}.disabled{opacity:.38;pointer-events:none}.checksum-area{margin-top:25px}.checksum-area>div{display:flex;justify-content:space-between;align-items:center;font:9px monospace;margin-bottom:10px}.checksum-area button{font-size:9px;text-decoration:underline;text-underline-offset:3px}.checksum-area code{display:block;background:#edf0f4;padding:14px;font:10px/1.7 monospace;overflow-wrap:anywhere}.verify-details{font-size:11px;margin-top:24px}.verify-details summary{font-weight:500;text-decoration:underline;text-underline-offset:4px}.verify-details p{margin:12px 0;color:var(--muted);font-size:10px}.verify-details code{display:block;background:#edf0f4;padding:12px;font:10px monospace;overflow-wrap:anywhere}.release-warning{font-size:10px;line-height:1.7;color:#656c78;margin-top:18px}.footer{display:flex;align-items:center;flex-wrap:wrap;gap:30px;padding:40px 4.5%;min-height:145px}.footer>p{font-size:11px;color:var(--muted)}.footer>div{display:flex;gap:25px;margin-left:auto;font-size:10px}.footer small{font-size:9px;color:var(--muted);margin-left:10px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);z-index:6;background:var(--ink);color:var(--paper);font-size:12px;padding:15px 25px;box-shadow:0 6px 30px #0002} [hidden]{display:none!important}html[lang="zh"] h1{font-size:clamp(60px,6.5vw,100px);line-height:1.2;letter-spacing:-3px}html[lang="zh"] .serif{font-family:Georgia,'Songti SC',SimSun,serif;letter-spacing:-2px}html[lang="de-CH"] h1{font-size:clamp(56px,6.3vw,100px)}html[lang="es"] h1{font-size:clamp(55px,6.3vw,100px)}@media(min-width:1600px){.hero{min-height:850px}.hero-copy{padding-top:90px}.hero-description{font-size:18px}}@media(max-width:1100px){.header{height:85px}.header nav{gap:20px}.header-right{gap:15px}.hero{min-height:700px;grid-template-columns:1.1fr 1fr}.hero-copy{padding-top:60px}h1{letter-spacing:-3.5px}.hero-description{font-size:14px}.hero-actions{gap:15px}.button{font-size:11px;padding:18px;gap:20px}.text-link{font-size:11px}.hero-meta{flex-wrap:wrap;gap:13px;max-width:300px;font-size:8px}.section{padding:85px 4.5%}.section-heading{grid-template-columns:.8fr 2fr;gap:35px}.section-intro{font-size:14px}.messenger-content{gap:5%}.hardware{padding-top:65px;gap:4%}.hardware-viewer img{height:400px}.hardware-intro h2{font-size:56px}.hardware-intro p{font-size:13px}.connection-diagram{gap:15px;padding-left:4%;padding-right:4%}.diagram-link>span{font-size:8px}.tech-layout{gap:5%}.architecture{padding:25px 22px}.architecture-block{gap:10px;padding:15px 10px}.architecture-block small{width:100%;margin-left:23px}.download{gap:6%}.release-card{padding:25px}.footer{gap:20px}.footer>p{display:none}}@media(max-width:800px){.header{padding:0 6%;height:82px}.header nav{display:none}.brand{font-size:27px}.header-download{padding:11px;font-size:11px;gap:12px}.header-right{gap:15px}.hero{grid-template-columns:1fr;padding:0 6%}.hero-copy{padding:55px 0 35px}.eyebrow{font-size:9px}h1{font-size:clamp(58px,10vw,80px);letter-spacing:-3px;margin-top:28px;margin-bottom:23px}.hero-description{max-width:460px;font-size:15px}.hero-actions{margin-top:28px;gap:25px}.hero-meta{max-width:none;margin-top:40px;padding:0;gap:20px}.intro-strip{padding:20px 6%;font-size:8px;gap:15px;letter-spacing:1px;flex-wrap:wrap;justify-content:center}.strip-star{font-size:20px}.intro-strip>span:last-child{display:none}.section{padding:70px 6%}.section-heading{grid-template-columns:1fr;gap:26px;margin-bottom:40px}.section-heading .eyebrow{margin:0}h2{font-size:43px;letter-spacing:-2px}.section-intro{font-size:14px;margin-top:18px}.messenger-content{grid-template-columns:1fr;gap:35px}.hardware{grid-template-columns:1fr;padding:60px 6% 35px;gap:35px}.hardware-intro h2{font-size:59px;margin:25px 0}.hardware-intro p{font-size:14px;max-width:490px}.hardware-stamp{display:none}.hardware-viewer img{height:auto;max-height:450px}.hardware-view-head{font-size:8px}.hardware-view-controls button{font-size:10px}.hardware-note{font-size:10px}.hardware-measurements{flex-wrap:wrap;gap:24px;margin-top:0}.connection-diagram{flex-direction:column;gap:0;padding:40px}.diagram-link{margin:16px 0 24px;width:1px;height:60px;min-width:1px;min-height:60px;position:relative;border-left:1px solid #7f8a9c}.diagram-link>div{border:0}.diagram-link i{left:-3px;top:28px}.diagram-link>span{position:absolute;left:17px;top:24px;font-size:9px}.diagram-node{width:100%}.diagram-router{margin-top:37px}.connection-steps{grid-template-columns:1fr;gap:26px;margin-top:30px}.connection-steps h3{margin:12px 0 10px}.connection-steps p{font-size:13px;max-width:470px}.tech-layout{grid-template-columns:1fr;gap:35px;margin-bottom:50px}.architecture-block{padding:18px;gap:15px}.architecture-block small{width:auto;margin-left:auto}.architecture-block strong{font-size:12px}.architecture>p{font-size:11px}.technical-details summary{font-size:18px}.dependency-heading{align-items:flex-start;flex-direction:column;gap:14px}.dependency-heading h3{font-size:27px}.dependencies{min-width:550px}.dependencies td{padding:18px 12px;font-size:11px}.audit-note{flex-wrap:wrap;font-size:10px}.audit-note p{flex:1;min-width:200px}.audit-note a{margin-left:18px}.download{grid-template-columns:1fr;gap:35px}.download-copy h2{font-size:67px;letter-spacing:-3px;margin-top:28px}.download-copy p{max-width:450px}.android-mark{display:none}.release-card{padding:25px}.release-version{font-size:30px}.footer{padding:35px 6%;gap:27px}.footer>div{width:100%;order:3;margin:0;justify-content:space-between;gap:20px}.footer small{margin-left:auto}.brand img{width:23px;height:28px}html[lang="de-CH"] h1,html[lang="es"] h1{font-size:clamp(53px,9.4vw,76px)}html[lang="zh"] h1{font-size:clamp(58px,10vw,80px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

.license-link{text-decoration:underline;text-underline-offset:3px}.license-link:hover{color:var(--red)}.release-warning{overflow-wrap:anywhere}@media(max-width:1100px){}@media(max-width:800px){.hardware-view-controls{gap:3px}.hardware-view-controls button{font-size:9px;padding-left:4px;padding-right:4px}}
@media(max-width:800px){.hero{grid-template-columns:minmax(0,1fr)}}
@media(max-width:450px){h1,html[lang="es"] h1,html[lang="de-CH"] h1,html[lang="zh"] h1{font-size:clamp(42px,13.2vw,58px);letter-spacing:-2.5px}.hardware-intro h2{font-size:clamp(40px,11.8vw,53px)}.download-copy h2{font-size:clamp(42px,13.6vw,60px);letter-spacing:-2.5px}.hero-meta{letter-spacing:.5px;gap:14px}.header-download span:first-child{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.header-download{width:35px;height:35px;justify-content:center;padding:8px}.header-right{gap:12px}.hero-actions{gap:18px}.release-version{font-size:27px}.release-top{font-size:9px}}

/* Authentic application imagery: no recreated UI or device frames. */
.hero-real-media{margin:0 -11% 0 0;background:#101216;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px 30px 24px;min-width:0;position:relative;overflow:hidden}.hero-real-media .screenshot-label{display:flex;justify-content:space-between;width:100%;max-width:480px;font:9px monospace;letter-spacing:1.4px;color:#b3bccb;margin-bottom:20px;gap:20px}.hero-real-media>img{max-height:620px;max-width:100%;width:auto;object-fit:contain;border:1px solid #303743}.hero-real-media figcaption{font-size:10px;color:#b3bccb;margin-top:17px;line-height:1.6;max-width:400px;text-align:center}.hero:has(.hero-real-media[hidden]){grid-template-columns:1fr}.hero:has(.hero-real-media[hidden]) .hero-copy{max-width:1000px}.hero:has(.hero-real-media[hidden]) .hero-description{max-width:590px}.messenger-facts{display:flex;flex-direction:column;justify-content:center}.messenger-facts article{display:flex;gap:25px;border-top:1px solid var(--line);padding:29px 0}.messenger-facts article:last-child{border-bottom:1px solid var(--line)}.messenger-facts article>span{font:10px monospace;color:var(--red);padding-top:7px}.messenger-facts h3{font-size:23px;line-height:1.3;letter-spacing:-.8px}.messenger-facts p{font-size:13px;line-height:1.75;color:var(--muted);margin-top:13px;max-width:390px}.messenger-content:has(.real-screenshot-gallery[hidden]){grid-template-columns:1fr}.messenger-content:has(.real-screenshot-gallery[hidden]) .messenger-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.messenger-content:has(.real-screenshot-gallery[hidden]) .messenger-facts article{border-bottom:0}.real-screenshot-gallery{background:#101216;color:#f7f8fa;padding:27px 30px;min-width:0}.gallery-topline{display:flex;justify-content:space-between;gap:20px;font:9px monospace;letter-spacing:1px;color:#b3bccb;margin-bottom:24px}.real-screenshot-gallery figure{margin:0;display:flex;flex-direction:column;align-items:center}.real-screenshot-gallery figure>a>img{height:500px;width:auto;max-width:100%;object-fit:contain;border:1px solid #303743}.real-screenshot-gallery figcaption{font-size:12px;line-height:1.5;margin-top:20px;text-align:center}.screenshot-controls{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;border-top:1px solid #303743;margin-top:24px;padding-top:18px}.screenshot-controls button{border:1px solid #525d6e;color:#b3bccb;font-size:11px;padding:10px 13px}.screenshot-controls button[aria-pressed="true"]{background:#ed3b35;border-color:#ed3b35;color:#fff}.screenshot-controls button:hover{border-color:#f7f8fa}.screenshot-provenance{font-size:10px;color:#b3bccb;line-height:1.7;margin-top:20px;text-align:center}.background-section{background:#ffffff;border-top:1px solid #d7dbe1}.background-details{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.background-details article{border-top:2px solid #101216;padding-top:23px}.background-details article>span{font:10px monospace;color:var(--red)}.background-details h3{font-size:22px;letter-spacing:-.7px;line-height:1.3;margin:24px 0 15px}.background-details p{font-size:13px;color:var(--muted);line-height:1.8}.background-note{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:22px;margin-top:40px;max-width:900px}.background-note a{text-decoration:underline}.hero-copy,.section-heading>div,.messenger-content>div,.tech-layout>div,.download>div{min-width:0}
@media(min-width:1600px){.hero-real-media>img{max-height:690px}}
@media(max-width:1100px){.hero-real-media{padding:28px 20px}.hero-real-media>img{max-height:540px}.hero-real-media figcaption{font-size:9px}.messenger-facts h3{font-size:21px}.real-screenshot-gallery{padding:25px}.real-screenshot-gallery figure>a>img{height:440px}.background-details{gap:25px}}
@media(max-width:800px){.hero{grid-template-columns:minmax(0,1fr)}.hero-real-media{margin:0 -7%;padding:30px 6%}.hero-real-media>img{max-height:580px}.hero-real-media .screenshot-label{max-width:100%}.messenger-content{grid-template-columns:1fr;gap:35px}.messenger-content:has(.real-screenshot-gallery[hidden]) .messenger-facts{display:flex;gap:0}.messenger-facts article{padding:22px 0;gap:20px}.messenger-facts p{max-width:100%}.real-screenshot-gallery figure>a>img{height:auto;max-height:560px;width:auto;max-width:100%}.real-screenshot-gallery{padding:26px 20px}.background-details{grid-template-columns:1fr;gap:35px}.background-details h3{font-size:21px;margin:15px 0}.background-note{margin-top:30px}.gallery-topline{font-size:8px}}

.real-screenshot-gallery figure>a{display:flex;justify-content:center;max-width:100%}.screenshot-controls button{display:flex;flex-direction:column;align-items:center;gap:8px;padding:8px;min-width:68px;max-width:120px}.screenshot-controls button>img{width:42px;height:74px;object-fit:contain}.screenshot-controls button>span{font-size:9px;max-width:100%;overflow-wrap:anywhere}.screenshot-controls button[aria-pressed="true"]{background:#20252d;border-color:#ed3b35;color:#fff}

.graphene-recommendation{border-top:1px solid #b9c2cf;margin-top:35px;padding-top:25px;max-width:440px}.graphene-eyebrow{font:9px monospace;letter-spacing:1px;color:#656c78}.graphene-recommendation h3{font-size:24px;line-height:1.25;letter-spacing:-.7px;margin:14px 0}.download-copy .graphene-recommendation p{font-size:12px;max-width:none;line-height:1.75}.graphene-links{display:flex;flex-wrap:wrap;gap:12px 20px;margin-top:18px}.graphene-links a{font-size:10px;font-weight:500;text-decoration:underline;text-underline-offset:4px}.graphene-links a:hover{color:#ed3b35}.graphene-recommendation small{display:block;font-size:10px;line-height:1.7;color:#656c78;margin-top:18px}.hero-real-media>img,.real-screenshot-gallery figure>a>img{border:0}.real-screenshot-gallery figure>a>img{width:auto;object-fit:contain}.screenshot-controls button>img{width:50px;height:74px;object-fit:contain}@media(max-width:800px){.graphene-recommendation{max-width:100%;margin-top:28px}.graphene-recommendation h3{font-size:23px}}
/* Product guide: concrete controls, principles and architecture. */
.header nav{gap:26px}.product-guide{border-top:1px solid var(--line);padding-top:80px;background:#fff}.guide-heading{display:grid;grid-template-columns:1fr 2.3fr;gap:50px;margin-bottom:50px}.guide-heading>.eyebrow{align-self:start;margin-top:12px}.guide-heading>div{min-width:0}.guide-heading h2{max-width:870px}.guide-heading .section-intro{max-width:650px}.product-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin:0 0 50px}.product-principles article{display:flex;gap:18px;border-top:1px solid #d7dbe1;padding-top:24px}.product-principles article>span{font:10px monospace;color:#ed3b35;margin-top:5px}.product-principles h3{font-size:20px;line-height:1.35;letter-spacing:-.7px}.product-principles p{font-size:12px;line-height:1.8;color:#656c78;margin-top:12px}.feature-quicknav{display:flex;gap:9px;align-items:center;flex-wrap:wrap;padding:17px 0;background:#fff;border-top:1px solid #d7dbe1;border-bottom:1px solid #d7dbe1;margin:0 0 30px;position:sticky;top:0;z-index:2}.feature-quicknav a{border:1px solid #d7dbe1;border-radius:2px;padding:10px 13px;font-size:10px;font-weight:500;line-height:1.4;transition:background .2s,border-color .2s}.feature-quicknav a:hover{background:#101216;border-color:#101216;color:#fff}.feature-lead-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;margin-bottom:24px}.feature-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.product-feature{padding:35px;border:1px solid #d7dbe1;background:#f7f8fa;display:flex;flex-direction:column;min-width:0;scroll-margin-top:90px}.feature-card-top{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:25px}.feature-kicker{font:10px monospace;letter-spacing:1.2px;text-transform:uppercase;color:#656c78}.feature-index{font:11px monospace;color:#ed3b35}.product-feature h3{font-size:30px;line-height:1.15;letter-spacing:-1.1px;max-width:440px}.feature-body{font-size:14px;line-height:1.8;color:#656c78;margin-top:20px;max-width:570px}.product-feature ul{padding:0;margin:24px 0 28px;list-style:none;display:flex;flex-direction:column;gap:12px}.product-feature li{position:relative;padding-left:18px;font-size:12px;line-height:1.7;color:#444e5d}.product-feature li:before{content:'';position:absolute;left:0;top:.7em;width:5px;height:5px;background:#ed3b35}.feature-details{border-top:1px solid #d7dbe1;padding-top:19px;margin-top:auto}.feature-details summary{display:flex;align-items:baseline;justify-content:space-between;gap:20px;font-size:11px;font-weight:500;line-height:1.6}.feature-details summary span{font-size:19px;font-weight:300;flex-shrink:0}.feature-details[open] summary span{transform:rotate(45deg);color:#ed3b35}.feature-details p{font-size:12px;line-height:1.8;color:#656c78;margin-top:16px}.feature-critical{background:#101216;border-color:#101216;color:#fff;position:relative;padding-top:35px}.feature-critical:before{content:'';position:absolute;height:4px;background:#ed3b35;left:35px;top:0;width:80px}.feature-critical .feature-kicker{color:#b3bccb}.feature-critical h3{font-size:44px;letter-spacing:-1.8px}.feature-critical .feature-body,.feature-critical li,.feature-critical .feature-details p{color:#b3bccb}.feature-critical .feature-details{border-color:#303743}.feature-group{background:#e9edf2}.feature-group h3{font-size:38px;letter-spacing:-1.4px}.feature-card-grid .product-feature{background:#fff}.concept-section{background:#e9edf2;padding-top:85px;padding-bottom:85px}.concept-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;list-style:none;margin:0;padding:0}.concept-flow>li{background:#fff;border:1px solid #d7dbe1;padding:30px;position:relative;min-width:0}.concept-node-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:27px}.concept-number{font:10px monospace;color:#656c78}.concept-node-top svg{color:#ed3b35}.concept-flow h3{font-size:22px;letter-spacing:-.7px;line-height:1.3;margin-bottom:17px}.concept-flow p{font-size:12px;line-height:1.8;color:#656c78}.concept-flow-arrow{position:absolute;right:-30px;top:54px;color:#ed3b35;font-size:25px;font-weight:300;z-index:1}.concept-note{font-size:12px;line-height:1.8;max-width:880px;margin-top:27px;color:#656c78;border-left:2px solid #ed3b35;padding-left:18px}.permissions-section{background:#fff;padding-top:85px;padding-bottom:85px}.permissions-table-wrap{width:100%;overflow:auto}.permissions-table{width:100%;border-collapse:collapse;text-align:left;min-width:660px}.permissions-table thead{background:#101216;color:#fff}.permissions-table thead th{padding:20px 22px;font-size:10px;font-weight:500;letter-spacing:.5px;line-height:1.5}.permissions-table tbody th,.permissions-table tbody td{border-bottom:1px solid #d7dbe1;padding:21px 22px;font-size:12px;line-height:1.7;vertical-align:top}.permissions-table tbody th{font-weight:500;width:24%;background:#f7f8fa}.permissions-table tbody td{color:#656c78}.permissions-note{font-size:11px;color:#656c78;line-height:1.8;margin-top:23px;max-width:900px}.advantages-section{background:#101216;color:#f7f8fa;padding-top:85px;padding-bottom:85px}.advantages-section .section-intro{color:#b3bccb}.advantages-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:36px 65px}.advantages-grid article{display:flex;align-items:flex-start;gap:25px;border-top:1px solid #303743;padding-top:26px;min-width:0}.advantages-grid article>span{font:11px monospace;color:#ed3b35;padding-top:6px}.advantages-grid h3{font-size:24px;line-height:1.3;letter-spacing:-.8px}.advantages-grid p{font-size:13px;line-height:1.8;color:#b3bccb;margin-top:14px}.questions-section{display:grid;grid-template-columns:1fr 1.9fr;gap:8%;background:#fff}.questions-heading>.eyebrow{margin-bottom:28px;color:#656c78}.questions-heading h2{font-size:49px;letter-spacing:-2.3px;max-width:370px}.product-questions{min-width:0}.product-questions details{border-top:1px solid #d7dbe1;padding:24px 0}.product-questions details:last-child{border-bottom:1px solid #d7dbe1}.product-questions summary{display:flex;justify-content:space-between;gap:20px;font-size:17px;line-height:1.5;font-weight:500;letter-spacing:-.3px}.product-questions summary span{font-size:23px;font-weight:300;flex-shrink:0}.product-questions details[open] summary span{transform:rotate(45deg);color:#ed3b35}.product-questions p{font-size:13px;line-height:1.85;color:#656c78;padding:18px 25px 0 0;max-width:720px}.components-links{display:flex;gap:25px;margin-top:25px;font-size:11px;font-weight:500}.components-links a{text-decoration:underline;text-underline-offset:4px}.components-links a:hover{color:#ed3b35}
@media(max-width:1100px){.header nav{gap:18px;font-size:12px}.guide-heading{grid-template-columns:.8fr 2fr;gap:35px}.feature-lead-grid{gap:20px}.feature-card-grid{gap:20px}.product-feature{padding:28px}.feature-critical:before{left:28px}.feature-critical h3{font-size:38px}.feature-group h3{font-size:33px}.product-principles{gap:25px}.product-principles h3{font-size:18px}.concept-flow{gap:25px}.concept-flow>li{padding:24px}.concept-flow-arrow{right:-23px;font-size:21px}.concept-flow h3{font-size:20px}.questions-heading h2{font-size:42px}.advantages-grid{gap:30px 40px}}
@media(max-width:800px){.guide-heading{grid-template-columns:1fr;gap:25px;margin-bottom:35px}.guide-heading>.eyebrow{margin-top:0}.product-guide{padding-top:65px}.product-principles{grid-template-columns:1fr;gap:23px;margin-bottom:35px}.product-principles article{gap:20px;padding-top:19px}.product-principles h3{font-size:20px}.product-principles p{margin-top:10px;font-size:13px}.feature-quicknav{flex-wrap:nowrap;overflow:auto;scrollbar-width:thin;gap:8px;margin-bottom:24px;padding:14px 0}.feature-quicknav a{white-space:nowrap;padding:10px 12px;font-size:10px;flex-shrink:0}.feature-lead-grid,.feature-card-grid{grid-template-columns:1fr;gap:20px}.feature-lead-grid{margin-bottom:20px}.product-feature{padding:27px 25px}.feature-critical:before{left:25px}.product-feature h3{font-size:29px}.feature-critical h3{font-size:39px}.feature-group h3{font-size:34px}.feature-body{font-size:14px;margin-top:18px}.product-feature li{font-size:13px}.feature-details summary{font-size:12px}.feature-details p{font-size:12px}.concept-section,.permissions-section,.advantages-section{padding-top:65px;padding-bottom:65px}.concept-flow{grid-template-columns:1fr;gap:30px}.concept-flow>li{padding:25px}.concept-flow-arrow{right:auto;left:calc(50% - 9px);top:auto;bottom:-28px;transform:rotate(90deg);font-size:25px}.concept-node-top{margin-bottom:18px}.concept-flow h3{font-size:23px}.concept-flow p{font-size:13px}.concept-note{font-size:12px}.permissions-table thead th{padding:17px 16px}.permissions-table tbody th,.permissions-table tbody td{padding:18px 16px}.advantages-grid{grid-template-columns:1fr;gap:28px}.advantages-grid h3{font-size:23px}.advantages-grid article{gap:20px;padding-top:22px}.questions-section{grid-template-columns:1fr;gap:35px}.questions-heading h2{font-size:43px;max-width:100%}.questions-heading>.eyebrow{margin-bottom:21px}.product-questions details{padding:22px 0}.product-questions summary{font-size:17px}.product-questions p{font-size:13px;padding-right:0}}
@media(prefers-reduced-motion:reduce){.feature-quicknav a{transition:none}}

.feature-status{align-self:flex-start;margin-top:18px;padding:9px 12px;border:1px solid #ed3b35;background:#fff;color:#ab241f;font-size:11px;font-weight:500;line-height:1.4;letter-spacing:.1px}.feature-critical .feature-status{background:#ed3b35;color:#fff;border-color:#ed3b35}.hardware-concept{background:#edf0f4;padding-top:85px;padding-bottom:85px}.hardware-flow{grid-template-columns:repeat(4,1fr);gap:29px}.hardware-flow>li{padding:25px 22px}.hardware-flow h3{font-size:20px}.hardware-flow .concept-flow-arrow{right:-25px}@media(max-width:1100px){.hardware-flow{gap:22px}.hardware-flow>li{padding:22px 18px}.hardware-flow h3{font-size:19px}.hardware-flow .concept-flow-arrow{right:-21px;font-size:20px}}@media(max-width:800px){.hardware-concept{padding-top:65px;padding-bottom:65px}.hardware-flow{grid-template-columns:1fr;gap:30px}.hardware-flow>li{padding:25px}.hardware-flow h3{font-size:23px}.hardware-flow .concept-flow-arrow{right:auto;left:calc(50% - 9px);font-size:25px}.feature-status{font-size:11px}}

/* Regular-weight body text; preserve the Rubik display typography. */
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-weight:400}h1,h2,h3,.brand{font-family:Rubik,Arial,sans-serif}.hero-description,.section-intro,.messenger-facts p,.product-principles p,.feature-body,.product-feature li,.feature-details p,.concept-flow p,.concept-note,.background-details p,.technical-details details p,.architecture>p,.connection-steps p,.advantages-grid p,.product-questions p,.hardware-intro p,.download-copy>p{font-size:16px;line-height:1.75;font-weight:400;color:#4b5563}.feature-critical .feature-body,.feature-critical li,.feature-critical .feature-details p,.advantages-section .section-intro,.advantages-grid p,.hardware-intro p{color:#c1c9d5}.background-note,.permissions-note,.real-screenshot-gallery figcaption,.hardware-note,.release-card>p{font-size:14px;line-height:1.75;font-weight:400}.permissions-table tbody td,.permissions-table tbody th{font-size:15px;line-height:1.7}.dependencies td{font-size:14px}.dependencies td:nth-child(2),.dependencies td:nth-child(4){font-size:12px}.feature-details summary{font-size:14px}.feature-status{font-size:13px;font-weight:500;line-height:1.5}.product-feature h3{line-height:1.2}.graphene-recommendation p,.download-copy .graphene-recommendation p{font-size:15px;line-height:1.75;color:#4b5563}.graphene-links a{font-size:12px}.release-warning{font-size:12px;line-height:1.75}#release-warning:not(:empty){font-size:14px;line-height:1.75;background:#fff0ee;border-left:3px solid #ed3b35;padding:12px 14px;color:#8f2922}.feature-quicknav a{font-size:11px}.product-feature{scroll-margin-top:145px}@media(max-width:800px){.product-feature{scroll-margin-top:90px}.product-principles p,.feature-body,.product-feature li,.feature-details p,.concept-flow p,.background-details p,.product-questions p,.advantages-grid p,.connection-steps p{font-size:16px}.hero-description,.section-intro{font-size:16px}}
:root{--release-rule:#d7dbe1}.release-meta,.release-architecture{font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;color:#566171;overflow-wrap:anywhere}.release-architecture:empty{display:none}.release-architecture{margin:0 0 18px}.apk-alternative{border-top:1px solid var(--release-rule);margin-top:30px;padding-top:26px;min-width:0}.alternative-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.alternative-heading h3{font-size:21px;line-height:1.3;letter-spacing:-.5px}.alternative-download{display:inline-flex;gap:12px;align-items:center;flex-shrink:0;border-bottom:1px solid var(--red);padding:4px 0;font-size:12px;font-weight:600}.alternative-download:hover,.release-files a:hover{color:var(--red)}.alternative-version{font-size:13px;color:#4b5563;margin-top:15px}.alternative-meta,.alternative-architecture{font:12px/1.75 ui-monospace,SFMono-Regular,Consolas,monospace;color:#566171;margin-top:7px;overflow-wrap:anywhere}.alternative-checksum{margin-top:19px}.alternative-checksum>span{font:10px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1px}.alternative-checksum code{display:block;overflow-wrap:anywhere;background:#f7f8fa;padding:13px;margin-top:9px;font:11px/1.75 ui-monospace,SFMono-Regular,Consolas,monospace}.release-files{display:flex;gap:14px 24px;flex-wrap:wrap;border-top:1px solid var(--release-rule);padding-top:22px;margin-top:26px}.release-files a{font-size:12px;line-height:1.6;text-decoration:underline;text-underline-offset:4px}.release-notes{background:#fff;border-top:1px solid var(--line)}.release-notes .section-heading{margin-bottom:45px}.release-notes h2{font-size:clamp(34px,3.8vw,54px);line-height:1.15}.release-notes-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:8%;min-width:0}.release-notes-grid>div{min-width:0;border-top:2px solid var(--ink);padding-top:24px}.release-notes-grid h3{font-size:24px;line-height:1.3;letter-spacing:-.5px;margin-bottom:23px}.release-changes{padding:0;margin:0;list-style:none}.release-changes li{position:relative;padding-left:23px;margin:0 0 17px;font-size:16px;line-height:1.75;color:#4b5563}.release-changes li:before{content:'';width:6px;height:6px;background:var(--red);position:absolute;left:0;top:11px}.release-upgrade p{font-size:16px;line-height:1.75;color:#4b5563}.release-upgrade .release-transfer{border-left:2px solid var(--red);padding-left:18px;margin-top:25px}@media(max-width:800px){.release-notes-grid{grid-template-columns:1fr;gap:35px}.release-notes .section-heading{margin-bottom:32px}.release-notes-grid h3{font-size:23px}.release-files{gap:13px 20px}}@media(max-width:450px){.alternative-heading{flex-direction:column;gap:12px}.alternative-heading h3{font-size:20px}.alternative-download{font-size:13px}.release-meta,.release-architecture,.alternative-meta,.alternative-architecture{font-size:11px}.release-top{flex-wrap:wrap}.release-top>span{min-width:0}}