:root{color-scheme:dark;--bg:#111416;--surface:#191e21;--text:#edf0e9;--muted:#a7b0ac;--line:#30383a;--accent:#c0f09c}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.65}body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;background:radial-gradient(ellipse at 75% 10%,#24302777,transparent 55%)}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:6px}button{font:inherit;cursor:pointer}.shell{max-width:1360px;margin:auto;padding:0 64px}header{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:34px 0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:14px;font-weight:700;font-size:14px;letter-spacing:.1em}.brand small{display:block;font-size:10px;letter-spacing:.17em;font-weight:400;color:var(--muted);margin-top:3px}.mark{font-size:34px;color:var(--accent);line-height:1}nav{display:flex;gap:32px;font-size:14px}nav a{color:var(--muted)}nav a[aria-current]{color:var(--text);border-bottom:1px solid var(--accent)}.hero{padding:100px 0 0}.eyebrow{font-size:12px;letter-spacing:.17em;font-weight:600;color:var(--accent);margin:0 0 25px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(46px,6.5vw,88px);line-height:1.04;letter-spacing:-.055em;font-weight:500;margin-bottom:30px}h1 span{color:var(--muted)}h2{font-size:clamp(28px,3vw,40px);line-height:1.2;letter-spacing:-.03em;font-weight:500}h3{font-size:22px;line-height:1.3;font-weight:500;letter-spacing:-.025em}.lead{font-size:19px;line-height:1.7;color:var(--muted);max-width:650px}.actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin:32px 0 50px}.button{display:inline-block;background:var(--accent);color:#182017;border:1px solid var(--accent);padding:12px 22px;border-radius:4px;font-size:14px;font-weight:600;transition:background .2s,transform .2s}.button:hover{background:#d3ffb4;color:#182017;transform:translateY(-2px)}.text-link{font-size:14px;border-bottom:1px solid var(--line);padding-bottom:5px}.signal,.network-panel{border:1px solid var(--line);border-radius:8px;background:linear-gradient(135deg,#202a2460,#171d20);padding:24px 30px}.signal-top,.signal-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:11px;letter-spacing:.12em;color:var(--muted)}.wave{height:150px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:28px 0}.wave i{display:block;width:3px;flex:1;max-width:6px;height:var(--h);background:var(--accent);opacity:.65;transform:scaleY(.65);animation:pulse 4s var(--d) ease-in-out infinite;border-radius:3px}.wave i:nth-child(3n){opacity:.22}@keyframes pulse{50%{transform:scaleY(1);opacity:.85}}.section{padding:90px 0}.section-heading{display:grid;grid-template-columns:1fr 1fr;column-gap:80px;margin-bottom:36px}.section-heading .eyebrow{grid-column:1/-1}.section-heading p:not(.eyebrow){color:var(--muted);align-self:end}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border-top:1px solid var(--line);padding:28px 24px 22px;background:linear-gradient(180deg,#1b2123,#151a1c);border-radius:0 0 6px 6px;transition:border-color .3s}.card:hover{border-color:var(--accent)}.number{display:block;color:var(--accent);font-size:12px;margin-bottom:50px;letter-spacing:.1em}.card p{color:var(--muted);font-size:15px;margin-bottom:0}.note{border-top:1px solid var(--line);padding:46px 0 60px;max-width:800px}.note p:not(.eyebrow){color:var(--muted);max-width:660px}.page-hero{padding:90px 0 30px}.process{padding:0 0 70px}.process ol{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.process li{border-top:1px solid var(--line);padding-top:22px}.process li>span{font-size:11px;color:var(--accent);letter-spacing:.1em}.process h3{margin-top:20px;font-size:20px}.process p{font-size:14px;color:var(--muted)}.nodes{display:flex;align-items:center;justify-content:space-between;padding:45px 0 12px;gap:14px}.nodes>div{flex:1;border:1px solid var(--line);border-radius:6px;padding:24px}.nodes span{color:var(--accent);font-size:12px}.nodes h3{margin:12px 0 8px}.nodes p{color:var(--muted);font-size:13px;margin:0}.nodes b{color:var(--accent);animation:glow 3s infinite;font-weight:400}@keyframes glow{50%{opacity:.3}}footer{border-top:1px solid var(--line);padding:36px 0 40px;display:flex;justify-content:space-between;gap:30px;color:var(--muted);font-size:12px}footer p{margin:8px 0 0}.footer-brand{color:var(--text);font-size:14px}.footer-links{display:flex;flex-direction:column;gap:8px;text-align:right}.error-page{padding:80px 0;min-height:70vh}.error-code{color:var(--accent);font-size:clamp(90px,15vw,170px);letter-spacing:-.06em;line-height:1;margin-bottom:30px}.error-code span{font-size:.4em;margin-left:30px;display:inline-block}.error-page h1{font-size:clamp(38px,6vw,64px)}.tea-steam{color:var(--accent);animation:steam 4s infinite;letter-spacing:.4em}@keyframes steam{50%{transform:translateY(-6px);opacity:.3}}.brew-result{color:var(--muted);margin:20px 0 35px;min-height:2em}.skip{position:absolute;top:-100px;padding:10px;background:var(--accent);color:#111;z-index:10}.skip:focus{top:10px}.motion .reveal{opacity:0;transform:translateY(16px);transition:opacity .75s,transform .75s}.motion .reveal.visible{opacity:1;transform:none}@media(min-width:1100px){.hero>div:first-child{position:relative}.hero{position:relative}.hero::after{content:"SA / 01";position:absolute;right:0;top:124px;font-size:12px;letter-spacing:.15em;color:var(--muted);writing-mode:vertical-rl}}@media(max-width:800px){.shell{padding:0 28px}header{padding:25px 0;flex-wrap:wrap}.hero,.page-hero{padding-top:65px}.section{padding:60px 0}.section-heading{grid-template-columns:1fr;gap:0}.cards{grid-template-columns:1fr}.number{margin-bottom:25px}.process ol{grid-template-columns:repeat(2,1fr)}.nodes{flex-direction:column;align-items:stretch}.nodes b{text-align:center}.nodes>div{padding:18px}.signal,.network-panel{padding:20px}.wave{gap:4px;height:115px}footer{flex-direction:column}.footer-links{text-align:left}nav{gap:25px}}@media(max-width:420px){.shell{padding:0 20px}.brand small{font-size:9px}.process ol{grid-template-columns:1fr}nav{width:100%;justify-content:space-between}.lead{font-size:17px}.signal-top,.signal-bottom{font-size:10px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.motion .reveal{opacity:1;transform:none}.wave i{transform:none}}

.upload-panel{max-width:760px;padding:30px 0 40px;border-bottom:1px solid var(--line)}.upload-panel label{display:block;margin-bottom:12px}.upload-panel input{display:block;max-width:100%;font:inherit;color:var(--muted)}.upload-panel input:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.file-details{margin:16px 0;color:var(--muted);overflow-wrap:anywhere;font-size:14px}.button:disabled{opacity:.5;cursor:default;transform:none}.upload-panel progress{width:min(100%,480px);height:12px;accent-color:var(--accent)}#upload-progress{margin-top:20px}#upload-progress[hidden]{display:none}#upload-percent{display:inline-block;margin-left:12px;font-size:14px}#upload-status{color:var(--muted);margin:16px 0 0;min-height:2em}