:root{color-scheme:dark;--bg:#03101a;--ink:#f7fcff;--muted:#aec6d5;--ice:#8de5ff;--mint:#45e0c2;--line:#284453;--panel:#0a1c29;--button-ink:#03101a;--glow:#083f5b66;--size:16px}
:root[data-theme=day]{color-scheme:light;--bg:#f1f7fa;--ink:#102938;--muted:#435b6a;--ice:#005d7c;--mint:#08715e;--line:#b7cdd8;--panel:#fff;--button-ink:#fff;--glow:#a7d9ed66}
:root[data-theme=forest]{--bg:#061813;--ink:#f1fff6;--muted:#b2cebc;--ice:#a4efc1;--mint:#d4eb87;--line:#365549;--panel:#10291e;--button-ink:#061813;--glow:#28634666}
:root[data-theme=violet]{--bg:#130e25;--ink:#fcf7ff;--muted:#cbbade;--ice:#d8b5ff;--mint:#9df0e0;--line:#554367;--panel:#221934;--button-ink:#130e25;--glow:#65429055}
:root[data-theme=contrast]{--bg:#000;--ink:#fff;--muted:#fff;--ice:#ffef00;--mint:#fff;--line:#fff;--panel:#000;--button-ink:#000;--glow:transparent}
:root[data-text=large]{--size:20px}:root[data-text=largest]{--size:24px}*{box-sizing:border-box}html{font-size:var(--size);scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;background:var(--bg);color:var(--ink);font:1rem/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--ice)}button,input,select{font:inherit}button,select,summary{cursor:pointer}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--ice);outline-offset:4px}button,select{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:.65rem;padding:.45rem .7rem;min-height:44px}select{max-width:100%}.shell{width:min(1200px,calc(100% - 80px));margin-inline:auto}.ambient{position:absolute;z-index:-1;inset:0 0 auto;height:1100px;background:radial-gradient(ellipse at 80% 30%,var(--glow),transparent 55%);pointer-events:none}.nav{display:flex;justify-content:space-between;align-items:center;min-height:100px;border-bottom:1px solid var(--line);gap:1.5rem}.brand{display:flex;gap:14px;align-items:center;letter-spacing:.09em;font-weight:750}.brand>b{display:grid;place-content:center;position:relative;font-size:32px;line-height:1;width:50px;height:50px;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--ice)}.brand>b sup{position:absolute;font-size:16px;right:8px;top:8px}.brand small{display:block;font-size:.65rem;letter-spacing:.25em;color:var(--muted);line-height:1.4}.nav nav{display:flex;align-items:center;gap:1.6rem;flex-wrap:wrap;font-size:.875rem}.nav nav a{padding:.55rem 0}.toolbar{display:flex;align-items:start;justify-content:space-between;gap:1rem;padding-block:1rem;flex-wrap:wrap;font-size:.875rem}.language{display:flex;align-items:center;flex-wrap:wrap;gap:.65rem}.language label{color:var(--muted)}.preferences{position:relative;min-width:15rem;max-width:100%}.preferences summary{min-height:44px;padding:.5rem .8rem;border:1px solid var(--line);border-radius:.65rem;list-style:revert}.settings{display:grid;gap:.6rem;padding:1rem;background:var(--panel);border:1px solid var(--line);border-radius:.8rem;position:absolute;inset-inline-end:0;top:calc(100% + 8px);width:19rem;max-width:calc(100vw - 40px);z-index:20;box-shadow:0 18px 40px #0005}.check{display:flex;align-items:center;gap:.6rem}.check input{width:1.2rem;height:1.2rem;accent-color:var(--ice)}.hero{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:1rem;min-height:630px;padding:2.5rem 0 3rem}.hero-copy{min-width:0}.eyebrow{font-size:.7rem;font-weight:700;letter-spacing:.15em;color:var(--ice);display:flex;align-items:center;gap:9px}.dot{display:inline-block;flex-shrink:0;width:6px;height:6px;background:var(--mint);border-radius:50%}h1,h2,h3,p{margin-top:0;overflow-wrap:anywhere}h1{font-size:clamp(2.5rem,5.2vw,4.5rem);line-height:1.1;letter-spacing:-.05em;margin:1.5rem 0}h1 span{color:var(--ice)}h2{font-size:2.25rem;line-height:1.2;letter-spacing:-.035em}h3{font-size:1.35rem;line-height:1.3}.lead{font-size:1.18rem;line-height:1.7;color:var(--muted)}.actions{display:flex;gap:.75rem;margin:1.8rem 0 1rem;flex-wrap:wrap}.button{display:inline-flex;gap:1rem;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:.8rem;padding:.9rem 1.2rem;font-weight:650;font-size:.9rem;max-width:100%;text-align:center}.button.primary{background:var(--ice);color:var(--button-ink);border-color:var(--ice)}.button.secondary{background:var(--panel)}.hero-note{font-size:.75rem;color:var(--muted)}.hero-tags{display:flex;flex-wrap:wrap;gap:.6rem;font-size:.75rem}.hero-tags span{border:1px solid var(--line);border-radius:100px;padding:.4rem .7rem;color:var(--muted)}.hero-art{position:relative;min-width:0;text-align:center}.hero-art img{display:block;width:100%;height:auto;position:relative;z-index:1;mix-blend-mode:screen}.orbit{position:absolute;border:1px solid var(--line);border-radius:50%;inset:12%;transform:rotate(-20deg)}.art-caption{display:flex;align-items:center;justify-content:center;gap:.5rem;font-size:.75rem;color:var(--muted);padding:.5rem}.principles{display:flex;justify-content:space-between;gap:1rem;border-block:1px solid var(--line);padding-block:1.5rem;color:var(--muted);flex-wrap:wrap}.principles b{color:var(--ink);margin-inline-start:.8rem}.section{padding-block:4rem}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-top:2rem}.cards article,.glass{border:1px solid var(--line);background:var(--panel);border-radius:1.5rem;padding:2rem}.cards p,.glass p{color:var(--muted)}.card-number{display:block;color:var(--ice);font-size:.8rem;margin-bottom:1.8rem}.network{display:grid;grid-template-columns:1.5fr 1fr;gap:2rem;align-items:center}.network-art{display:flex;justify-content:center;align-items:center;gap:1rem;color:var(--ice);font-size:1.2rem;direction:ltr}.network-art span{border:1px solid var(--line);padding:1.5rem;border-radius:1rem;min-width:0}.network-art i{font-style:normal}.access{display:grid;grid-template-columns:2fr 1fr;gap:3rem;align-items:center}.fine{font-size:.9rem}.document{min-height:60vh;max-width:950px}.document .lead{font-size:1.2rem}.back{margin-top:3rem;color:var(--ice)}footer{display:flex;gap:2rem;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-block:2rem;color:var(--muted);font-size:.85rem}footer>div{display:flex;flex-wrap:wrap;gap:1.5rem}footer a{padding:.4rem 0}.skip{position:absolute;z-index:100;top:1rem;inset-inline-start:1rem;transform:translateY(-200%);background:var(--ice);color:var(--button-ink);padding:1rem;border-radius:.5rem}.skip:focus{transform:translateY(0)}[data-theme=day] .hero-art img{mix-blend-mode:normal;border-radius:50%}[data-theme=contrast] .ambient,[data-theme=contrast] .orbit,[data-theme=contrast] .hero-art{display:none}[data-theme=contrast] .hero{grid-template-columns:1fr;min-height:0}[data-theme=contrast] a{text-decoration:underline}[data-theme=contrast] .cards article,[data-theme=contrast] .glass{border-width:2px}[data-text=largest] .cards{grid-template-columns:1fr}[data-text=largest] .hero{grid-template-columns:1fr}[data-text=largest] .hero-art{max-width:500px;margin:auto}html[data-motion=reduce]{scroll-behavior:auto}html[data-motion=reduce] *,html[data-motion=reduce] *:before,html[data-motion=reduce] *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media(max-width:850px){.hero{grid-template-columns:1fr;min-height:0}.hero-art{max-width:480px;margin-inline:auto}.cards{grid-template-columns:1fr}.network,.access{grid-template-columns:1fr}.network-art{justify-content:start}.section{padding-block:2.5rem}h2{font-size:1.9rem}}@media(max-width:600px){.shell{width:calc(100% - 36px)}.nav{align-items:start;padding-block:1rem;flex-direction:column;gap:.7rem}.nav nav{gap:1rem;font-size:.85rem}.toolbar{gap:.7rem}.preferences{width:100%}.settings{inset-inline-start:0;width:100%}.hero{padding-top:1.5rem}h1{font-size:2.65rem}.principles{font-size:.85rem}.cards article,.glass{padding:1.4rem}.access{gap:1.3rem}.network-art{font-size:1rem;gap:.6rem}.network-art span{padding:1rem}footer{align-items:start;flex-direction:column;gap:1rem}.language{width:100%}.language select{flex:1;min-width:0}.button{width:100%}}
/* Plexus + holographic layers: decorative transforms never move document flow. */
body{isolation:isolate}.plexus{position:fixed;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}.ambient{background:radial-gradient(ellipse at 80% 30%,var(--glow),transparent 55%),radial-gradient(ellipse at 5% 70%,var(--glow),transparent 52%)}
.hero-art{--hx:0deg;--hy:0deg;transform:perspective(1100px) rotateX(var(--hx)) rotateY(var(--hy));transition:transform .35s ease;transform-style:preserve-3d}.hero-art:before{content:"";position:absolute;inset:6%;border-radius:50%;border:1px solid var(--ice);opacity:.22;transform:rotateX(68deg) translateZ(-25px);box-shadow:0 0 28px var(--glow),inset 0 0 28px var(--glow);animation:holo-orbit 15s linear infinite;pointer-events:none}.hero-art:after{content:"";position:absolute;z-index:3;inset:14% 4% 19%;border-radius:45%;background:linear-gradient(transparent 44%,var(--ice) 49%,transparent 54%);background-size:100% 240%;mix-blend-mode:screen;opacity:.13;animation:holo-scan 8s ease-in-out infinite;pointer-events:none}.hero-art img{filter:drop-shadow(0 0 22px var(--glow))}.orbit{inset:2% 6% 10%;border-style:dashed;opacity:.6;transform:rotate(-22deg);animation:holo-ring 40s linear infinite}.art-caption{position:relative;z-index:4}.eyebrow .dot{box-shadow:0 0 12px var(--mint);animation:holo-pulse 3.5s ease-in-out infinite}
.cards article{position:relative;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease}.cards article:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 15%,var(--glow) 45%,transparent 75%);opacity:.5;pointer-events:none}.cards article:hover{border-color:var(--ice);box-shadow:0 12px 40px var(--glow);transform:translateY(-4px)}.cards article>*{position:relative}.button{transition:box-shadow .25s ease,transform .25s ease}.button.primary:hover{box-shadow:0 0 28px var(--glow);transform:translateY(-2px)}
.network{position:relative;overflow:hidden;background:radial-gradient(ellipse at 100% 50%,var(--glow),transparent 58%),var(--panel)}.network>div{position:relative;z-index:1}.network-art{position:relative;min-height:240px}.network-art:before,.network-art:after{content:"";position:absolute;inset:8% 4%;border:1px solid var(--ice);border-radius:50%;opacity:.2;transform:rotateX(64deg) rotateZ(-20deg);pointer-events:none;animation:holo-orbit 18s linear infinite}.network-art:after{inset:18% -5%;animation-direction:reverse;border-style:dashed}.network-art span{position:relative;z-index:2;background:var(--panel);box-shadow:0 0 28px var(--glow),inset 0 0 24px var(--glow);backdrop-filter:blur(8px);animation:holo-float 7s ease-in-out infinite}.network-art span:last-child{animation-delay:-3.5s}.network-art i{position:relative;z-index:2;text-shadow:0 0 12px var(--ice);animation:holo-pulse 2.5s ease-in-out infinite}
@keyframes holo-scan{0%,100%{background-position:0 130%}50%{background-position:0 -50%}}@keyframes holo-orbit{0%{transform:rotateX(64deg) rotateZ(0)}100%{transform:rotateX(64deg) rotateZ(360deg)}}@keyframes holo-ring{to{transform:rotate(338deg)}}@keyframes holo-pulse{0%,100%{opacity:.45}50%{opacity:1}}@keyframes holo-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
[data-motion=reduce] .plexus,[data-theme=contrast] .plexus,[data-motion=reduce] .hero-art:before,[data-motion=reduce] .hero-art:after,[data-motion=reduce] .network-art:before,[data-motion=reduce] .network-art:after,[data-theme=contrast] .network-art:before,[data-theme=contrast] .network-art:after{display:none}[data-motion=reduce] .hero-art{transform:none!important}[data-motion=reduce] .cards article:hover,[data-motion=reduce] .button.primary:hover,[data-theme=contrast] .cards article:hover{transform:none}[data-theme=contrast] .cards article:before{display:none}[data-theme=contrast] .network-art span,[data-theme=contrast] .network-art i,[data-theme=contrast] .dot{animation:none;box-shadow:none;text-shadow:none}[data-theme=contrast] .network{background:var(--panel)}
@media(prefers-reduced-motion:reduce){.plexus,.hero-art:before,.hero-art:after,.network-art:before,.network-art:after{display:none}*,*:before,*:after{animation:none!important;transition:none!important}.hero-art,.cards article:hover,.button.primary:hover{transform:none!important}}@media(max-width:600px){.network-art{min-height:180px}.hero-art:after{opacity:.09}.hero-art{transform:none}.cards article:hover{transform:none}.network-art span{backdrop-filter:none}}
.hero-art{mix-blend-mode:screen}.hero-art:before{z-index:2;inset:4% -3% 12%;opacity:.3}[data-theme=day] .hero-art{mix-blend-mode:normal}
/* International network identity, fluid composition and visible color controls. */
.shell{width:min(1440px,calc(100% - clamp(32px,7vw,112px)))}.hero{grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:clamp(1rem,3vw,3rem);min-height:min(720px,80vh);padding-block:clamp(2rem,5vw,5rem)}.hero-art{overflow:clip;mix-blend-mode:normal}.hero-art img{mix-blend-mode:normal;transform:scale(.94);filter:drop-shadow(0 12px 32px var(--glow))}.hero-copy h1{font-size:clamp(2.5rem,5vw,5.2rem);letter-spacing:-.06em}.hero-copy .lead{max-width:34em}.art-caption{font-size:.7rem;letter-spacing:.06em}[data-theme=day] .hero-art img{border-radius:0}.toolbar{align-items:center;gap:1rem;padding-block:1.2rem}.color-controls{display:flex;align-items:center;gap:.7rem;color:var(--muted)}.palette{display:flex;gap:.3rem}.theme-choice{padding:0;display:grid;place-items:center;width:42px;height:44px;border-radius:.8rem;background:transparent}.theme-choice span{width:20px;height:20px;border-radius:50%;border:1px solid var(--line);background:var(--swatch)}.theme-choice[data-theme-choice=night]{--swatch:linear-gradient(135deg,#03101a 50%,#8de5ff 50%)}.theme-choice[data-theme-choice=day]{--swatch:linear-gradient(135deg,#f1f7fa 50%,#005d7c 50%)}.theme-choice[data-theme-choice=forest]{--swatch:linear-gradient(135deg,#061813 50%,#a4efc1 50%)}.theme-choice[data-theme-choice=violet]{--swatch:linear-gradient(135deg,#130e25 50%,#d8b5ff 50%)}.theme-choice[data-theme-choice=contrast]{--swatch:linear-gradient(135deg,#000 50%,#ffef00 50%)}.theme-choice[aria-pressed=true]{border-color:var(--ice);box-shadow:0 0 12px var(--glow)}.brand small{letter-spacing:.18em}.network-art span{font-size:clamp(.85rem,1.7vw,1.15rem);overflow-wrap:anywhere;max-width:55%}.cards article{min-height:15rem}.document{max-width:1000px}.document h1{font-size:clamp(2.2rem,5vw,4.5rem)}
@media(min-width:1600px){.hero{min-height:740px}.hero-copy h1{max-width:11ch}.hero-art{max-width:640px;margin-inline:auto}}@media(max-width:1100px){.toolbar{justify-content:start}.preferences{margin-inline-start:auto}.hero-copy h1{font-size:clamp(2.4rem,5vw,4.4rem)}}@media(max-width:850px){.hero{grid-template-columns:1fr;min-height:0}.hero-art{width:min(100%,500px);margin-inline:auto}.hero-copy h1{max-width:17ch;font-size:clamp(2.6rem,7vw,4.5rem)}.cards article{min-height:0}}@media(max-width:600px){.shell{width:calc(100% - 36px)}.hero{gap:1.3rem;padding-block:2rem}.hero-copy h1{font-size:clamp(2.35rem,10vw,3.2rem);max-width:15ch}.lead{font-size:1.05rem}.color-controls{width:100%;justify-content:space-between;gap:.5rem}.palette{gap:.25rem}.theme-choice{width:40px}.preferences{margin:0}.network-art{width:100%;min-width:0}.principles{display:grid;grid-template-columns:1fr;gap:.5rem}.language label{width:100%}.language select{min-width:120px}.cards article,.glass{padding:1.3rem}.hero-tags span{padding:.35rem .55rem}.art-caption{font-size:.7rem}.nav nav{justify-content:space-between;width:100%;gap:.6rem}}@media(max-width:360px){.shell{width:calc(100% - 28px)}.color-controls{align-items:start;flex-direction:column}.hero-copy h1{font-size:2.3rem}.hero-tags{gap:.4rem}.brand small{letter-spacing:.12em}}[data-text=largest] .color-controls{flex-wrap:wrap}[data-text=largest] .hero{grid-template-columns:1fr}[data-text=largest] .hero-copy h1{font-size:clamp(2.3rem,6vw,4rem)}
.preferences{min-width:min(15rem,100%)}@media(max-width:850px){.preferences{min-width:0}}[data-text=largest] .preferences{min-width:0;width:100%}
@media(max-width:600px){.nav{flex-direction:row;align-items:center;min-height:84px;gap:.8rem;padding-block:.8rem}.nav nav{width:auto;gap:.8rem;justify-content:end}.nav nav a:first-child{display:none}.brand{gap:8px}.brand small{font-size:.6rem;letter-spacing:.13em}.language label{width:auto}.language select{min-width:0}.toolbar{gap:.65rem;padding-block:.8rem}.hero{padding-top:1.5rem}.hero-copy h1{margin-top:1rem}.preferences summary{font-size:.8rem}[data-text=largest] .nav{flex-direction:column;align-items:start}[data-text=largest] .nav nav{width:100%;justify-content:space-between}[data-text=largest] .language label{width:100%}}