:root{--ink:#122333;--muted:#506271;--blue:#009abb;--orange:#ed8b22;--paper:#f5f6f4;--line:#d7dfe1}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:6px}.skip{position:absolute;top:-100px;background:white;padding:15px;z-index:20}.skip:focus{top:5px}header{height:94px;display:flex;align-items:center;justify-content:space-between;padding:0 5.5%;border-bottom:1px solid var(--line);background:rgba(245,246,244,.96);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:17px}.brand img{height:65px;width:49px;object-fit:contain}.brand span{font-size:11px;color:var(--muted);border-left:1px solid var(--line);padding-left:17px}nav{display:flex;gap:30px;font-size:13px}nav a:hover,.text-link:hover{color:var(--blue)}.header-right{display:flex;gap:23px;align-items:center}.lang{font-size:12px;font-weight:700}.button{display:inline-flex;gap:30px;align-items:center;justify-content:space-between;background:var(--ink);color:white;padding:18px 23px;font-size:13px;font-weight:700;border:1px solid var(--ink);transition:.2s}.button:hover{background:var(--blue);border-color:var(--blue)}.button.small{font-size:12px;padding:13px 17px;gap:18px}.hero{min-height:650px;padding:75px 5.5% 68px;display:grid;grid-template-columns:1.15fr 1fr;gap:3%;align-items:center;overflow:hidden}.eyebrow{font-family:monospace;font-size:11px!important;font-weight:600;letter-spacing:1.8px;line-height:1.6!important;text-transform:uppercase;color:var(--muted);margin:0 0 24px}h1{font-size:clamp(42px,4.6vw,76px);line-height:1.04;letter-spacing:-3px;margin:0 0 28px;font-weight:500}h1 em{font-style:normal;color:var(--blue)}.intro{font-size:17px;line-height:1.65;max-width:550px;color:var(--muted)}.actions{display:flex;align-items:center;gap:28px;margin:30px 0}.text-link{font-size:13px;font-weight:700;display:inline-flex;gap:16px;align-items:center}.hero-note{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin:35px 0 0}.hero-note i{height:6px;width:6px;background:var(--orange);border-radius:50%}.system-visual{height:510px;position:relative;background:#0d1d2b;color:#fff;overflow:hidden;border-radius:2px;box-shadow:18px 20px 0 #e8ebea}.grid-lines{position:absolute;inset:0;background-image:linear-gradient(#ffffff07 1px,transparent 1px),linear-gradient(90deg,#ffffff07 1px,transparent 1px);background-size:30px 30px}.orbit{position:absolute;border:1px solid #ffffff10;border-radius:50%;height:430px;width:430px;left:50%;top:50%;transform:translate(-50%,-50%)}.orbit-two{height:320px;width:320px}.input-node{position:absolute;top:33px;left:50%;transform:translateX(-50%);text-align:center;width:86%}.micro{font:10px monospace;letter-spacing:2px;color:#88a6b9}.input-node p{font-size:12px;color:#c4d3dc}.connection{position:absolute;top:100px;height:60px;left:50%;border-left:1px dashed #509db8}.core{position:absolute;top:160px;left:50%;transform:translateX(-50%);width:255px;padding:25px;background:linear-gradient(135deg,#234b60,#152b3b 65%);border:1px solid #638da0;box-shadow:0 0 70px #00a0bd20,12px 12px 0 #091722;text-align:center}.core-top{display:flex;gap:4px;margin-bottom:15px}.core-top i{height:4px;width:4px;border-radius:50%;background:#ed8b22}.core-top i:nth-child(2){background:#4fadc3}.core-top i:nth-child(3){background:#92a7af}.core strong{font-size:44px;letter-spacing:5px;font-weight:500}.core>span{display:block;font-size:10px;margin-top:9px;color:#afd3e1}.core-bars{display:flex;gap:5px;align-items:flex-end;height:27px;margin-top:20px;justify-content:center}.core-bars i{width:15px;height:5px;background:#2397b4}.core-bars i:nth-child(2n){height:14px}.core-bars i:nth-child(3n){height:23px;background:#ed8b22}.outputs{position:absolute;bottom:63px;left:5%;width:90%;display:flex;justify-content:space-between;gap:7px}.outputs div{border-top:1px solid #476576;font-size:10px;padding:10px 0;flex:1;text-align:center;color:#c4d3dc}.outputs b{display:block;font-size:20px;color:#00b5d1;margin-bottom:10px;font-weight:400}.visual-caption{position:absolute;bottom:20px;left:25px;font:9px monospace;letter-spacing:2px;color:#718b9b}.cap-strip{display:flex;justify-content:space-between;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 5.5%;font-size:12px;color:var(--muted)}.cap-strip span:before{content:'+';color:var(--blue);padding-right:18px;font:18px monospace}.section{padding:100px 5.5%}.section-head{display:grid;grid-template-columns:1fr 1fr;column-gap:10%;align-items:end;margin-bottom:55px}.section-head .eyebrow{grid-column:1/-1}.section-head h2{margin:0}h2{font-size:clamp(32px,3.4vw,52px);font-weight:500;letter-spacing:-1.8px;line-height:1.12;margin:0 0 25px}p{line-height:1.7}.section-head>p:last-child{color:var(--muted);font-size:16px;margin:0}.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.cap{border-top:1px solid var(--ink);padding:23px 0 0}.number{font:12px monospace;color:var(--blue)}h3{font-weight:500;letter-spacing:-.6px;font-size:25px;line-height:1.2}.cap h3{max-width:250px;min-height:60px}.cap p{font-size:14px;color:var(--muted);min-height:96px}.cap small{font-size:11px;line-height:1.8;display:block;border-top:1px solid var(--line);padding-top:18px;color:var(--muted)}.examples{margin-top:70px;padding:38px;background:#e9eeed;display:grid;grid-template-columns:1fr 2fr;gap:45px}.examples h3{font-size:25px;margin:10px 0}.examples p{font-size:12px;color:var(--muted)}.examples .eyebrow{font-size:9px!important;margin:0}.example-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.example-grid h3{font-size:17px}.dot{height:6px;width:6px;background:var(--blue);display:block;margin:8px 0 25px}.approach{background:white}.stage-tabs{display:grid;grid-template-columns:repeat(5,1fr)}.stage{background:transparent;border:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 15px;text-align:left;cursor:pointer;color:var(--muted);font-size:15px}.stage>span{display:block;font:10px monospace;margin-bottom:17px}.stage b{float:right;font-weight:400}.stage[aria-selected=true]{background:var(--ink);color:white;border-color:var(--ink)}.stage:hover{box-shadow:inset 0 3px 0 var(--blue)}.stage-panel{display:flex;gap:8%;padding:40px 0 0;min-height:200px}.stage-panel[hidden]{display:none}.panel-number{font-size:100px;font-weight:400;color:#dce6e9;line-height:1}.stage-panel h3{margin:0 0 18px;font-size:25px}.stage-panel p{font-size:14px;color:var(--muted);margin:0}.stage-panel small{display:block;font:9px monospace;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}.signal{padding:85px 5.5%;background:#102636;color:#eaf2f5;display:grid;grid-template-columns:1.05fr 1fr;gap:8%;overflow:hidden}.signal .eyebrow{color:#75bfd0}.signal h2{font-size:58px;letter-spacing:-2px}.signal h2 span{color:#25b6cb}.signal h3{font-size:32px;line-height:1.2}.signal p{font-size:14px;color:#b6c9d4}.signal ul{padding:0;list-style:none;font-size:12px;line-height:1.8;color:#b6c9d4}.signal li{padding:5px 0 5px 22px;position:relative}.signal li:before{content:'✓';position:absolute;left:0;color:#33c1ce}.signal .button{background:#04a4bf;border-color:#04a4bf;color:#071d2b}.signal .button:hover{background:#71d8e4}.signal small{font-size:10px;color:#7f9aaa;line-height:1.7;display:block}.signal-art{display:flex;flex-direction:column;justify-content:center}.signal-rings{height:350px;position:relative}.signal-rings>i{position:absolute;width:310px;height:310px;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid #2b697c;border-radius:50%}.signal-rings>i:nth-child(2){width:230px;height:230px;border-style:dashed}.signal-rings>i:nth-child(3){width:410px;height:410px;border-color:#ffffff09}.tag-icon{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-14deg);width:135px;height:185px;border:1px solid #46a4b8;background:linear-gradient(145deg,#326778,#17394b);box-shadow:15px 18px 0 #061925;font-size:100px;line-height:1.2;text-align:center;color:#35bfd2;border-radius:10px}.tag-icon span{display:block;font:12px monospace;letter-spacing:5px}.signal-flow{display:flex;position:relative;border-top:1px solid #396173;justify-content:space-between;padding-top:18px;gap:10px}.signal-flow span{font-size:11px}.signal-flow i{display:block;color:#4ea6bc;font:10px monospace;margin-bottom:8px}.signal-art>p{font:9px monospace;letter-spacing:1px;text-align:center;margin-top:30px}.about{display:grid;grid-template-columns:1fr 1fr;gap:10%;border-bottom:1px solid var(--line)}.about .large-copy{font-size:20px;color:var(--ink);margin-top:0}.about p{font-size:15px;color:var(--muted)}.about .text-link{margin-top:18px}.faq{display:grid;grid-template-columns:1fr 1.5fr;gap:10%;padding-top:70px;padding-bottom:80px}details{border-top:1px solid var(--line);padding:23px 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;font-size:15px}summary::-webkit-details-marker{display:none}summary span{color:var(--blue);font-size:20px}details[open] summary span{transform:rotate(45deg)}details p{font-size:14px;color:var(--muted);padding-right:35px}.contact{padding:70px 5.5%;background:var(--blue);color:#061e2b;display:grid;grid-template-columns:1fr 1fr;gap:10%}.contact .eyebrow{color:#103e50}.contact h2{font-size:46px;margin:0}.contact p{margin-top:0;font-size:17px}.button.light{background:#f4f6f3;border-color:#f4f6f3;color:var(--ink)}.button.light:hover{background:#d6f4f8}.contact small{display:block;font-size:10px;line-height:1.5;max-width:350px;margin-top:18px;color:#123e50}footer{padding:35px 5.5% 25px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}footer strong{font-size:22px;letter-spacing:2px}footer span{display:block;font-size:10px;color:var(--muted);margin-top:7px}footer p,footer a{font-size:11px;color:var(--muted)}footer>small{width:100%;border-top:1px solid var(--line);padding-top:20px;font:9px monospace;color:var(--muted)}@media(min-width:1600px){header,.hero,.section,.signal,.contact,footer{padding-left:max(5.5%,calc((100vw - 1450px)/2));padding-right:max(5.5%,calc((100vw - 1450px)/2))}}@media(max-width:1050px){nav{gap:15px}.brand span{display:none}.hero{gap:5%;padding-top:55px}.system-visual{height:460px}.core{top:135px;width:220px}.input-node{top:25px}.connection{top:90px;height:45px}.outputs{bottom:45px}h1{letter-spacing:-2px}.actions{gap:18px;flex-wrap:wrap}.examples{grid-template-columns:1fr;gap:15px}.cap h3{font-size:23px}.cap p{min-height:120px}.signal{gap:4%}.signal .actions{gap:20px}.stage{font-size:13px}.contact h2{font-size:38px}}@media(max-width:760px){html{scroll-padding-top:80px}header{height:77px;padding:0 6%}header nav{display:none}.brand img{height:53px;width:40px}.header-right{gap:17px}.button.small{padding:11px 13px;font-size:11px}.hero{padding:45px 6% 40px;grid-template-columns:1fr;gap:35px;min-height:0}h1{font-size:44px;letter-spacing:-2px}.hero .eyebrow{font-size:9px!important;margin-bottom:22px}.intro{font-size:16px}.button{font-size:12px;padding:16px 18px}.hero-note{margin-top:22px}.system-visual{height:420px;max-width:550px;width:100%;box-shadow:8px 8px 0 #e8ebea}.input-node{top:22px}.core{top:125px}.connection{top:83px}.outputs{bottom:32px}.visual-caption{bottom:10px;font-size:8px}.cap-strip{display:grid;grid-template-columns:1fr 1fr;gap:20px;font-size:10px;padding:25px 6%}.cap-strip span:before{padding-right:8px}.section{padding:65px 6%}.section-head{grid-template-columns:1fr;gap:20px;margin-bottom:35px}.section-head .eyebrow{margin-bottom:0}h2{font-size:34px;letter-spacing:-1.2px}.section-head>p:last-child{font-size:14px}.cap-grid{grid-template-columns:1fr;gap:35px}.cap{padding-top:18px}.cap h3{max-width:100%;min-height:0;font-size:25px;margin:15px 0}.cap p{min-height:0}.examples{padding:25px;margin-top:45px;gap:20px}.example-grid{grid-template-columns:1fr;gap:18px}.example-grid article{border-top:1px solid #ced9da;padding-top:10px}.dot{margin:8px 0 12px}.stage-tabs{grid-template-columns:1fr}.stage{padding:17px 12px;display:flex;gap:20px;align-items:center;font-size:14px}.stage>span{display:inline;margin:0}.stage>b{margin-left:auto}.stage-panel{gap:20px;padding-top:25px;min-height:170px}.panel-number{font-size:60px}.stage-panel h3{font-size:22px}.stage-panel p{font-size:13px}.signal{padding:60px 6%;grid-template-columns:1fr;gap:35px}.signal h2{font-size:48px}.signal h3{font-size:30px}.signal-rings{height:290px}.signal-rings>i{height:270px;width:270px}.signal-rings>i:nth-child(2){height:210px;width:210px}.signal-rings>i:nth-child(3){height:340px;width:340px}.tag-icon{height:160px;width:120px;font-size:85px}.signal-flow{margin-top:10px}.signal-flow span{font-size:10px}.about{grid-template-columns:1fr;gap:15px}.about .large-copy{font-size:18px}.faq{grid-template-columns:1fr;gap:15px}.faq h2{margin-bottom:10px}summary{font-size:14px}.contact{padding:55px 6%;grid-template-columns:1fr;gap:25px}.contact h2{font-size:35px}.contact p{font-size:15px}footer{padding:30px 6%}footer p{margin-left:auto}footer>a{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* Signal's own identity, verified against its public stylesheet and original SVG. */
.signal{background:#05080d;color:#f2f7ff}.signal .eyebrow{color:#00e5ff}.signal-brand img{display:block;width:min(100%,407px);height:auto}.signal .signal-brand{margin-bottom:28px}.signal p,.signal ul{color:#a2b4c5}.signal li:before{color:#a6ff12}.signal .button{background:#a6ff12;border-color:#a6ff12;color:#03060a}.signal .button:hover{background:#c0ff58;border-color:#c0ff58}.signal .text-link:hover{color:#00e5ff}.signal small{color:#a2b4c5}.signal-rings>i{border-color:#00e5ff55}.signal-rings>i:nth-child(3){border-color:#00e5ff16}.tag-icon{border-color:#00e5ff;background:linear-gradient(145deg,#0a2132,#0b1420);box-shadow:15px 18px 0 #03060a;color:#a6ff12}.signal-flow{border-color:#00e5ff55}.signal-flow i{color:#00e5ff}