/* Homepage only. The functional workbench has its own stylesheet. */
:root{color-scheme:dark;--bg:#101210;--ink:#f1f2e9;--muted:#a0a69a;--accent:#ddfa86;--line:#ffffff20;--sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;--mono:"SF Mono",SFMono-Regular,Consolas,monospace;--ease:cubic-bezier(.2,.7,.2,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:32px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:9;pointer-events:none;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23fff' filter='url(%23n)' opacity='.65' d='M0 0h180v180H0z'/%3E%3C/svg%3E")}
::selection{background:var(--accent);color:var(--bg)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}
button[hidden]{display:none}
button,a{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:3px}
svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.skip-link{position:fixed;top:12px;left:16px;z-index:20;background:var(--accent);color:var(--bg);padding:12px 20px;transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.mono,.section-label,.art-coordinate,.topic-number,.footer-year{font-family:var(--mono)}
.topbar{position:relative;z-index:3;max-width:1744px;margin:auto;min-height:98px;padding:20px clamp(24px,5vw,88px);display:flex;align-items:center;gap:36px;border-bottom:1px solid var(--line)}
.wordmark{display:flex;align-items:center;gap:10px;flex:none}
.wordmark img{width:37px;height:40px;filter:grayscale(1) brightness(1.2)}
.wordmark>span{font-size:18px;font-weight:650;line-height:1.2;letter-spacing:.02em}
.wordmark small{display:block;margin-top:6px;font:9px/1 var(--mono);letter-spacing:.26em;color:var(--muted)}
.header-note{font-size:11px;letter-spacing:.09em;color:var(--muted);padding-left:30px;border-left:1px solid var(--line)}
.topnav{display:flex;align-items:center;gap:32px;margin-left:auto;font-size:12px}
.topnav a{min-height:44px;display:inline-flex;align-items:center;gap:16px;transition:color .2s}
.topnav a:hover{color:var(--accent)}
.about-link{color:#b9bdb3}
.hero{position:relative;isolation:isolate;max-width:1744px;min-height:780px;min-height:max(740px,calc(100svh - 98px));margin:auto;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;padding:68px clamp(24px,7.4vw,128px) 142px;overflow:hidden}
.hero-grid{position:absolute;inset:0;z-index:-2;background-image:linear-gradient(#ffffff04 1px,transparent 1px),linear-gradient(90deg,#ffffff04 1px,transparent 1px);background-size:80px 80px;mask-image:linear-gradient(90deg,transparent,#000 55%,#000);pointer-events:none}
.hero-copy{position:relative;z-index:2;padding-top:4px}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:11px;color:#c5caba;letter-spacing:.06em;margin:0 0 35px;white-space:nowrap}
.status-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #ddfa8650;flex:none}
.eyebrow-divider{height:10px;width:1px;background:#5d6454;margin:0 5px}
.eyebrow .mono{font-size:9px;letter-spacing:.12em;color:var(--muted)}
h1{font-weight:500;letter-spacing:-.06em;line-height:1.12;margin:0}
.title-brand{display:block;font-size:clamp(34px,4.05vw,66px);letter-spacing:-.055em;margin-bottom:14px}
.title-main{display:block;font-size:clamp(62px,7vw,112px);font-weight:650;letter-spacing:-.075em;white-space:nowrap}
.title-period{color:var(--accent);font-family:Arial,sans-serif;font-weight:400;margin-left:6px}
.hero-description{font-size:14px;line-height:1.95;color:#aeb4a6;margin:30px 0 0;letter-spacing:.025em}
.hero-actions{display:flex;align-items:center;gap:28px;margin-top:35px;min-height:54px}
.ignite-button{min-height:54px;min-width:184px;display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--accent);color:#1b2510;border:1px solid var(--accent);border-radius:100px;padding:0 23px;font-size:13px;font-weight:650;transition:background .25s,box-shadow .25s,transform .25s}
.ignite-button svg{width:17px;height:20px;stroke-width:1.4}
.ignite-button .button-arrow{margin-left:14px;font-size:19px;font-weight:400;transition:transform .3s var(--ease)}
.ignite-button:hover{background:#e9ffa9;box-shadow:0 0 32px #c8f76e20}
.ignite-button:hover .button-arrow{transform:translate(2px,-2px)}
.ignite-button:active{transform:scale(.97)}
.ignite-button[aria-pressed=true]{background:#eaf8c5;border-color:#eaf8c5}
.sensor-note{font-size:10px;line-height:1.7;color:#bec7ad;margin:8px 0 0;min-height:1.7em}
.sensor-note[hidden]{display:none}
.explore-link{font-size:12px;display:inline-flex;align-items:center;gap:15px;min-height:48px;color:#d1d6c7}
.explore-link span{font-size:16px;transition:transform .3s}
.explore-link:hover span{transform:translateY(4px)}
.interaction-note{font-size:10px;letter-spacing:.03em;color:#949c8b;margin:18px 0 0;min-height:1.65em}
.hero-art{position:relative;z-index:1;aspect-ratio:1;min-width:0;width:clamp(370px,44vw,700px);justify-self:center;margin-left:-3%;margin-top:-12px}
.art-halo{position:absolute;inset:9% 3%;border-radius:50%;background:radial-gradient(ellipse,#70755c18 0,#89976509 42%,transparent 70%);transition:opacity 1s;pointer-events:none}
.egg-shadow{position:absolute;width:48%;height:10%;left:26%;bottom:7%;background:radial-gradient(ellipse,#c9ec5c30,transparent 66%);filter:blur(12px);transform:scaleX(.9);transition:opacity .8s,transform .8s;opacity:.45;z-index:-1}
.orbit{position:absolute;left:3%;top:36%;width:94%;height:26%;border:1px solid #a1af6b42;border-radius:50%;pointer-events:none}
.orbit-back{transform:rotate(-28deg);z-index:-1;border-color:#d4e3a545}
.orbit-front{transform:rotate(25deg);border-color:#d4e3a524;mask-image:linear-gradient(90deg,#000 22%,transparent 41%,transparent 63%,#000 84%)}
.orbit-back::after{content:"";position:absolute;left:7%;top:76%;width:6px;height:6px;background:var(--accent);border-radius:50%;box-shadow:0 0 14px #ddfa8680}
#egg-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity .6s}
.has-webgl #egg-canvas{opacity:1}
.egg-fallback{position:absolute;left:24%;top:13%;width:52%;height:62%;border-radius:50% 50% 47% 53% / 40% 42% 58% 60%;transform:rotate(-13deg) rotateX(var(--tilt-x,0deg)) rotateY(var(--tilt-y,0deg));background:radial-gradient(ellipse at 26% 24%,#f0f2db 0,transparent 36%),linear-gradient(105deg,#62695b,#c0c6b0 23%,#4c5147 40%,#20231f 52%,#545b48 76%,#c6d9a5 91%,#313b28);box-shadow:inset -10px -14px 25px #060b03b0,14px 18px 35px #0004;transition:opacity .3s,transform .2s}
.egg-fallback span{position:absolute;left:0;right:0;top:52%;height:2px;background:#d6e79a66;transform:rotate(-10deg);box-shadow:0 0 8px #d9ef9566}
.has-webgl .egg-fallback{opacity:0}
.is-lit .egg-fallback span{background:#e8ffb1;box-shadow:0 0 20px #ceff62}
.art-coordinate{position:absolute;font-size:8px;letter-spacing:.12em;color:#a2a994;white-space:nowrap}
.coordinate-top{top:2%;left:12%;display:flex;align-items:center;gap:10px}
.coordinate-top i{width:14px;height:14px;display:block;border-top:1px solid #899377;border-left:1px solid #899377}
.coordinate-side{right:0;top:30%;writing-mode:vertical-rl;font-size:7px;color:#919a83}
.art-tag{position:absolute;bottom:5%;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;font-size:10px;letter-spacing:.12em;white-space:nowrap;color:#bec6ad}
.tag-dot{width:4px;height:4px;background:#b5c196;border-radius:50%}
.art-cross{position:absolute;color:#abb99480;font:20px/1 var(--mono);font-weight:200}
.cross-one{left:10%;bottom:14%}.cross-two{right:13%;top:12%}
.hero-bottom{position:absolute;bottom:32px;left:clamp(24px,5vw,88px);right:clamp(24px,5vw,88px);display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:24px;gap:12px}
.scroll-cue{display:flex;align-items:center;gap:12px;min-height:44px;font-size:11px;letter-spacing:.03em;color:#bec4b5}
.scroll-line{height:30px;width:16px;position:relative;overflow:hidden}
.scroll-line::before{content:"";position:absolute;left:7px;top:0;width:1px;height:25px;background:linear-gradient(transparent,#cfdfb3);animation:scroll-line 2.4s var(--ease) infinite}
.scroll-line::after{content:"";position:absolute;width:5px;height:5px;left:5px;bottom:5px;border-right:1px solid #cfdfb3;border-bottom:1px solid #cfdfb3;transform:rotate(45deg)}
.scroll-cue .mono{margin-left:20px;letter-spacing:.12em;font-size:8px;color:#909985}
.motion-button{border:0;background:none;display:flex;align-items:center;gap:7px;padding:10px 0 10px 12px;font-size:10px;color:#a9b29d;min-height:44px;white-space:nowrap}
.motion-button svg{width:15px;height:15px}
.motion-button:disabled{cursor:default}
.play-icon{display:none}
.motion-paused .pause-icon{display:none}.motion-paused .play-icon{display:block}
.about{position:relative;max-width:1500px;display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(48px,9vw,150px);margin:auto;padding:124px clamp(24px,7.4vw,112px) 138px}
.section-label{font-size:10px;letter-spacing:.12em;color:#a1ac96;line-height:1.5;margin:0}
.about-heading .section-label{display:flex;justify-content:space-between;align-items:center;max-width:410px;margin-bottom:38px}
.small-asterisk{width:28px;height:28px;stroke-width:1.2;color:var(--accent)}
.about h2{font-size:clamp(33px,3.4vw,50px);font-weight:500;letter-spacing:-.055em;line-height:1.4;margin:0}
.about h2 span{color:var(--accent)}
.about-intro{font-size:13px;color:var(--muted);line-height:2;margin:24px 0 0}
.about-details{padding-top:52px}
.about-lede{font-size:15px;line-height:1.95;color:#c1c7b8;margin:0 0 30px;max-width:430px}
.topic{display:flex;align-items:center;gap:14px;border-top:1px solid var(--line);padding:19px 0}
.topic:last-child{border-bottom:1px solid var(--line)}
.topic-number{color:#9ba68c;font-size:9px}
.topic h3{font-size:13px;font-weight:500;margin:0;white-space:nowrap}
.topic-caption{font-size:11px;color:var(--muted);margin-left:auto}
.preview-note{font-size:10px;line-height:1.8;color:#9ba68f;margin:10px 0 0}
.closing{max-width:1744px;margin:0 auto;background:var(--accent);color:#26301a;overflow:hidden;padding:50px clamp(24px,5vw,88px) 0;position:relative}
.closing-top{display:flex;justify-content:space-between;align-items:center;gap:24px}
.closing .section-label{color:#47572e;font-size:9px}
.closing-status{display:flex;align-items:center;gap:10px;font-size:11px}
.closing-status .status-dot{background:#445f26;box-shadow:none}
.closing h2{font-size:clamp(27px,3vw,43px);font-weight:500;letter-spacing:-.04em;line-height:1.5;margin:53px 0 32px}
.closing h2 span{font-size:clamp(16px,1.5vw,22px);color:#506337;margin-left:26px;letter-spacing:0}
.closing-word{font-family:"Helvetica Neue",Arial,sans-serif;font-weight:600;letter-spacing:-.07em;line-height:1.1;font-size:clamp(60px,13vw,220px);white-space:nowrap;margin:0 0 -.145em -.03em;display:flex;align-items:center;justify-content:space-between}
.closing-word span{font-weight:300;line-height:1;font-size:.68em;margin-right:.06em}
.footer{min-height:112px;max-width:1744px;margin:auto;padding:24px clamp(24px,5vw,88px);display:flex;align-items:center;gap:28px;color:#a2ad95}
.footer-brand{font-size:13px;color:#dee4d3;font-weight:500;white-space:nowrap}
.footer-brand span{font:8px/1 var(--mono);letter-spacing:.12em;margin-left:8px;color:#a0ad91}
.footer p{font-size:10px;margin:0}
.footer-year{font-size:9px;margin-left:auto;letter-spacing:.06em;white-space:nowrap}
.back-top{display:grid;place-items:center;min-width:44px;height:44px;border:1px solid var(--line);border-radius:50%;font-size:18px;transition:color .2s,border-color .2s}
.back-top:hover{color:var(--accent);border-color:var(--accent)}
.enter{animation:enter .95s var(--ease) both}
.hero-copy .enter:nth-child(2){animation-delay:.09s}.hero-copy .enter:nth-child(3){animation-delay:.18s}.hero-copy .enter:nth-child(4){animation-delay:.27s}.hero-copy .enter:nth-child(5){animation-delay:.32s}
.hero-art{animation:art-enter 1.5s var(--ease) both}
.reveal-ready{opacity:0;transform:translateY(24px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.reveal-ready.is-visible{opacity:1;transform:translateY(0)}
.is-lit .art-halo{background:radial-gradient(ellipse,#c5e5631b,transparent 66%)}
.is-lit .egg-shadow{opacity:1;transform:scaleX(1.25)}
.is-lit .art-tag{color:var(--accent)}
.energy-aura,.energy-flare,.energy-wave{position:absolute;left:50%;top:50%;pointer-events:none;opacity:0}
.energy-aura{width:68%;height:78%;border:1px solid #dafa7955;border-radius:50%;transform:translate(-50%,-50%) rotate(-13deg) scale(.82);box-shadow:0 0 20px #dafa7930,inset 0 0 24px #dafa791d;transition:opacity .3s,transform .7s var(--ease)}
.energy-flare{width:32%;height:125%;background:linear-gradient(180deg,transparent,#dafa790b 30%,#e9ff9d52 49%,#dafa7920 53%,transparent 74%);filter:blur(12px);transform:translate(-50%,-50%) rotate(-13deg) scaleY(.1);transition:opacity .4s,transform .65s var(--ease)}
.energy-wave{left:18%;top:18%;width:64%;height:64%;border:2px solid #efffa6;border-radius:50%;scale:.45;box-shadow:0 0 24px #dafa79aa,inset 0 0 22px #efffa655;animation:none;z-index:2}
.is-lit .energy-aura{opacity:.9;transform:translate(-50%,-50%) rotate(-13deg) scale(1)}
.is-lit .energy-flare{opacity:.95;transform:translate(-50%,-50%) rotate(-13deg) scaleY(1)}
.is-lit .art-halo{animation:halo-surge .9s ease-out 1 both}
@keyframes halo-surge{0%{opacity:1;filter:brightness(1)}35%{opacity:1;filter:brightness(2.6)}100%{opacity:.72;filter:brightness(1.2)}}
.motion-paused *,.motion-paused *::before,.motion-paused *::after{animation-play-state:paused!important}
.motion-paused .enter,.motion-paused .hero-art{animation:none;opacity:1;transform:none}
.motion-paused .reveal-ready{transition:none;opacity:1;transform:none}
@keyframes enter{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes art-enter{from{opacity:0;transform:translateY(25px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes scroll-line{0%{transform:translateY(-30px)}65%,100%{transform:translateY(30px)}}
@media(min-width:1800px){.hero{min-height:900px}}
@media(max-width:1100px){.header-note{display:none}.hero{padding-left:6vw;padding-right:5vw;min-height:740px;grid-template-columns:1.05fr 1fr}.hero-art{width:48vw;margin-left:-8%}.title-brand{font-size:4.3vw}.title-main{font-size:7.6vw}.hero-description{font-size:13px}.eyebrow{font-size:10px;gap:8px}.eyebrow .mono{font-size:8px}.hero-actions{gap:20px}.ignite-button{min-width:166px;padding:0 20px}.hero-bottom{bottom:26px}.topic{gap:10px}.topic-caption{font-size:10px}.about{gap:7vw;padding-top:104px;padding-bottom:110px}.about-details{padding-top:52px}}
@media(max-width:760px){.topbar{min-height:82px;padding:18px 24px}.wordmark>span{font-size:16px}.wordmark img{width:30px;height:34px}.wordmark small{font-size:8px}.topnav{gap:20px}.topnav .about-link{display:none}.hero{grid-template-columns:1fr;min-height:0;padding:65px 28px 122px;gap:0;overflow:hidden}.hero-copy{padding:0}.eyebrow{margin-bottom:27px;font-size:10px}.eyebrow .mono{font-size:8px}.title-brand{font-size:clamp(35px,7.4vw,53px);margin-bottom:12px}.title-main{font-size:clamp(70px,14vw,100px)}.hero-description{font-size:14px;margin-top:24px}.hero-actions{margin-top:27px;gap:26px}.interaction-note{font-size:10px;margin-top:16px}.hero-art{width:min(100vw,550px);margin:-4px -28px -8px;justify-self:center;aspect-ratio:1.1}.coordinate-top{top:9%;left:10%}.coordinate-side{right:7%;top:30%;font-size:6px}.art-tag{bottom:1%;font-size:9px}.cross-one{bottom:11%}.cross-two{top:18%;right:14%}.orbit{top:39%}.egg-shadow{bottom:5%}.hero-bottom{left:24px;right:24px;bottom:22px;padding-top:16px}.scroll-cue{font-size:10px;gap:10px}.scroll-cue .mono{display:none}.motion-button{font-size:10px}.about{grid-template-columns:1fr;gap:40px;padding:76px 28px 80px}.about-heading .section-label{margin-bottom:28px;max-width:none}.about h2{font-size:clamp(34px,7vw,48px)}.about-intro{font-size:14px;margin-top:22px}.about-details{padding-top:0}.about-lede{font-size:16px;max-width:100%;margin-bottom:24px}.topic{padding:20px 0;gap:16px}.topic h3{font-size:14px}.topic-caption{font-size:11px}.preview-note{font-size:11px}.closing{padding:34px 28px 0}.closing-top{gap:15px}.closing .section-label{font-size:7px;max-width:150px}.closing-status{font-size:10px;gap:8px;white-space:nowrap}.closing h2{margin:38px 0 28px;font-size:32px}.closing h2 span{display:block;font-size:16px;margin:5px 0 0}.closing-word{font-size:11.3vw}.footer{padding:26px 24px;display:grid;grid-template-columns:1fr auto;gap:14px}.footer p{grid-column:1;font-size:10px}.footer-year{grid-column:1;font-size:8px;margin:0}.back-top{grid-column:2;grid-row:1/4;align-self:center}}
@media(max-width:360px){.topbar{padding:16px 20px;gap:12px}.hero{padding:52px 23px 116px}.eyebrow{gap:7px;font-size:9px}.eyebrow-divider{margin:0 2px}.eyebrow .mono{font-size:7px}.title-brand{font-size:34px}.title-main{font-size:65px}.hero-description{font-size:13px}.ignite-button{min-width:153px;font-size:12px;padding:0 16px}.hero-actions{gap:19px}.explore-link{font-size:11px;gap:10px}.hero-art{margin-left:-23px;margin-right:-23px}.about{padding-left:23px;padding-right:23px}.topic{gap:10px}.topic-caption{font-size:10px}.closing{padding-left:23px;padding-right:23px}.closing h2{font-size:29px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reveal-ready{opacity:1;transform:none}}
@media(prefers-contrast:more){:root{--muted:#c2c8ba;--line:#ffffff55}.hero-description,.interaction-note,.topic-caption,.preview-note,.art-coordinate,.eyebrow .mono,.scroll-cue .mono{color:#c2c8ba}.closing .section-label,.closing h2 span{color:#30421a}}
@media(max-width:760px){.sensor-note{font-size:10px;margin-top:7px}}
@media(prefers-reduced-motion:reduce){.is-lit .art-halo{animation:none;filter:none}}