:root{color-scheme:dark;--bg:#07141b;--panel:#0d2029;--text:#eaf6f4;--muted:#a2b9bf;--mint:#52edd3;--coral:#ff8d70;--blue:#85bcff;--line:#24404b;--display:"Avenir Next","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;--body:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.9 var(--body);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--mint)}a:focus-visible{outline:3px solid var(--mint);outline-offset:6px}button,input,a{-webkit-tap-highlight-color:transparent}img,svg{max-width:100%}img{display:block;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display);font-feature-settings:"palt";line-height:1.5}p,dd{overflow-wrap:anywhere}h1,h2,h3{overflow-wrap:normal;word-break:normal}section{min-width:0}[hidden]{display:none!important}.wrap{width:min(1120px,calc(100% - 64px));margin-inline:auto}.phrase{display:inline-block}.mint{color:var(--mint)}.skip-link{position:absolute;left:16px;top:-100px;z-index:10;background:var(--mint);color:var(--bg);padding:8px 20px;border-radius:4px}.skip-link:focus{top:12px}.site-header{min-height:100px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;letter-spacing:.01em;text-decoration:none;white-space:nowrap}.brand svg{color:var(--mint);flex-shrink:0}.brand-suffix{margin-left:.15em}.header-link{font-size:14px;text-decoration:none;white-space:nowrap}.header-link span{margin-left:8px;color:var(--mint)}.hero{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;min-height:620px;padding-block:50px 80px;gap:16px}.hero-copy{position:relative;z-index:1}.eyebrow{font:700 11px/1.5 var(--display);letter-spacing:.19em;color:var(--mint)}.signal-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--mint);margin-right:7px;vertical-align:1px}.hero h1{font-size:clamp(48px,5.5vw,68px);line-height:1.25;letter-spacing:-.045em;margin:22px 0 28px;font-weight:900}.hero h1>span{display:block;white-space:nowrap}.hero-description{font-size:17px;line-height:2.05;color:#c5d8da}.play-button{width:280px;min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--mint);color:#06271f;text-decoration:none;font-size:17px;line-height:1.4;font-weight:800;padding:18px 26px;border-radius:9px;transition:background .15s,transform .15s}.hero .play-button{margin-top:32px}.play-button:hover{color:#06271f;background:#88f8e4;transform:translateY(-2px)}.play-button>span:last-child{font-size:25px;font-weight:500;line-height:1}.play-note{font-size:11px;color:var(--muted);margin-top:12px;line-height:1.8}.note-divider{padding-inline:5px}.hero-art{position:relative;min-width:0;margin-inline:-25px -30px}.hero-art img{width:100%}.art-caption{display:flex;justify-content:space-between;margin:-4px 50px 0;font:700 10px/1.4 var(--display);letter-spacing:.13em;color:#91acb4}.art-caption span:last-child{color:var(--coral)}.privacy-strip{display:flex;align-items:center;gap:14px;border-block:1px solid var(--line);padding:20px 4px;font-size:13px;line-height:1.85}.privacy-strip svg{flex-shrink:0;color:var(--mint)}.privacy-strip p{color:var(--muted)}.privacy-strip a{white-space:nowrap;margin-left:6px;color:var(--text)}.section{padding-block:82px}.section+.section{border-top:1px solid var(--line)}.section-heading{margin-bottom:32px}.section-heading h2{font-size:30px;letter-spacing:-.03em;margin-top:12px}.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;list-style:none;padding:0;margin:0}.step-number{font:500 44px/1 var(--display);letter-spacing:-.08em;color:#54717d}.steps h3{font-size:19px;margin:22px 0 13px}.steps p{color:var(--muted);font-size:14px}.steps .small-note{font-size:12px;color:#93abb2;margin-top:18px;line-height:1.8}.modes{display:grid;grid-template-columns:1fr 1fr;gap:24px}.mode-card{padding:32px;border:1px solid var(--line);border-radius:14px;background:var(--panel);min-width:0;position:relative;overflow:hidden}.mode-card:before{content:"";position:absolute;width:90px;height:3px;top:0;left:32px;background:var(--mint)}.mode-card.duo:before{background:var(--coral)}.mode-label{font:700 11px/1.5 var(--display);letter-spacing:.14em;color:var(--mint)}.duo .mode-label{color:var(--coral)}.mode-card h3{font-size:25px;line-height:1.6;margin:17px 0 15px;letter-spacing:-.025em}.mode-card>p:not(.mode-label){color:var(--muted);font-size:14px}.mode-card>p.mode-detail{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);font-size:12px}.voice-section{display:grid;grid-template-columns:1fr 1fr;gap:54px}.section-intro{max-width:430px;color:var(--muted);font-size:14px;margin-top:22px}.voice-traits{margin:0}.voice-traits>div+div{margin-top:26px}.voice-traits dt{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;line-height:1.6}.voice-traits dd{margin:9px 0 0 32px;color:var(--muted);font-size:14px}.trait-line{width:20px;height:4px;display:block;flex-shrink:0}.mint-line{background:var(--mint)}.coral-line{background:var(--coral)}.blue-line{background:var(--blue)}.closing{padding:64px 0 76px;border-block:1px solid var(--line);text-align:center}.closing h2{font-size:30px;letter-spacing:-.03em;margin:16px 0 28px}.closing .play-button{margin-inline:auto}.small-note{font-size:12px;line-height:1.9;color:var(--muted)}.closing .small-note{margin-top:18px}.mobile-break{display:none}.ad-section{margin-top:160px;text-align:center;min-height:100px}.ad-label{font-size:11px;color:var(--muted);margin-bottom:8px}.site-footer{padding-block:34px 30px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;align-items:center}.footer-brand{font-size:14px;font-weight:700;text-decoration:none}.site-footer nav{display:flex;gap:20px;flex-wrap:wrap;align-items:center}.site-footer nav a{font-size:12px;color:var(--muted);text-decoration:none}.site-footer nav a:hover{color:var(--mint)}.site-footer>p{flex-basis:100%;font-size:11px;color:#91a9b1}.document{max-width:760px;padding-block:48px 70px}.document h1{font-size:34px;letter-spacing:-.03em;margin:14px 0 20px}.document .lead{font-size:16px;color:#c5d8da}.document .updated{font-size:12px;color:var(--muted);margin-top:18px}.document section{padding-top:34px}.document h2{font-size:21px;margin-bottom:12px}.document p,.document ul{color:var(--muted);font-size:14px}.document p+p{margin-top:12px}.document ul{padding-left:1.4em;margin:14px 0}.document li+li{margin-top:8px}.document a{color:var(--mint)}.document strong{color:var(--text);font-weight:600}.back-link{display:inline-block;margin-top:40px;font-size:14px}.document-footer{border-top:1px solid var(--line)}.not-found{min-height:55vh}.not-found .play-button{margin-top:28px;color:#06271f}.not-found .back-link{margin-top:20px}
@media(max-width:900px){.wrap{width:calc(100% - 48px)}.hero{min-height:560px;gap:0;padding-block:40px 65px}.hero h1{font-size:50px}.hero-description{font-size:15px}.hero-art{margin-inline:-16px -22px}.art-caption{margin-inline:32px;font-size:9px}.steps{gap:26px}.steps h3{font-size:17px}.section{padding-block:65px}.mode-card{padding:27px}.mode-card h3{font-size:22px}.voice-section{gap:32px}.section-heading h2,.closing h2{font-size:27px}.voice-section{grid-template-columns:1fr}.voice-section .section-heading{margin-bottom:0}.section-intro{max-width:none}}
@media(max-width:650px){.wrap{width:calc(100% - 40px)}.site-header{min-height:80px;gap:10px}.brand{font-size:16px;gap:8px}.brand svg{width:27px;height:27px}.header-link{font-size:12px}.header-link span{margin-left:2px}.hero{grid-template-columns:1fr;padding-block:28px 30px;gap:16px;min-height:0}.hero h1{font-size:clamp(44px,12.3vw,64px);margin:20px 0 22px;line-height:1.25;letter-spacing:-.05em}.hero-description{font-size:15px;line-height:2}.hero .play-button{margin-top:25px}.play-button{width:100%;max-width:350px;min-height:59px;padding:18px 23px;font-size:16px}.play-note{font-size:10px;max-width:350px;text-align:center;letter-spacing:-.02em}.note-divider{padding-inline:2px}.hero-art{max-width:430px;width:100%;margin:0 auto}.hero-art img{width:100%;max-height:300px;object-fit:contain}.art-caption{font-size:9px;max-width:320px;margin:-2px auto 10px;padding-inline:16px}.privacy-strip{padding:19px 0;gap:12px;align-items:flex-start;font-size:12px}.privacy-strip svg{margin-top:3px;width:20px;height:20px}.privacy-strip a{margin-left:0}.section{padding-block:54px}.section-heading{margin-bottom:28px}.section-heading h2,.closing h2{font-size:25px;line-height:1.65}.section-heading h2 .phrase{max-width:100%}.steps{grid-template-columns:1fr;gap:32px}.steps li{padding-left:48px;position:relative}.step-number{font-size:28px;position:absolute;left:0;top:5px;letter-spacing:-.06em}.steps h3{font-size:18px;margin:0 0 10px}.steps p{font-size:14px}.steps .small-note{margin-top:10px;font-size:11px}.modes{grid-template-columns:1fr;gap:18px}.mode-card{padding:27px 24px}.mode-card:before{left:24px}.mode-card h3{font-size:23px}.mode-card .mode-detail{margin-top:20px;padding-top:14px}.voice-section{gap:28px}.section-intro{font-size:14px;margin-top:18px}.voice-traits dt{font-size:15px;gap:10px}.voice-traits dd{font-size:13px;margin-left:30px}.closing{padding:50px 0}.closing h2{font-size:25px;margin:14px 0 24px}.mobile-break{display:block}.site-footer{gap:18px;padding-block:30px}.site-footer nav{gap:9px 19px;flex-basis:100%}.site-footer nav a{font-size:12px}.site-footer>p{font-size:10px}.document{padding-block:32px 52px}.document h1{font-size:28px}.document .lead{font-size:15px}.document section{padding-top:29px}.document h2{font-size:19px}.document p,.document ul{font-size:14px}.ad-section{margin-top:160px}}
@media(max-width:350px){.wrap{width:calc(100% - 32px)}.site-header{min-height:74px}.brand{font-size:14px;gap:6px}.brand svg{width:25px}.header-link{font-size:11px}.hero{padding-top:24px}.hero h1{font-size:42px}.hero-description{font-size:14px}.eyebrow{font-size:10px;letter-spacing:.16em}.play-note{font-size:9px;letter-spacing:-.035em}.hero-art img{max-height:250px}.section-heading h2,.closing h2{font-size:23px}.mode-card{padding-inline:20px}.mode-card h3{font-size:21px}.steps{gap:29px}.steps li{padding-left:42px}.steps h3{font-size:17px}.steps p{font-size:13px}.voice-traits dt{font-size:14px}.document h1{font-size:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.play-button{transition:none}.play-button:hover{transform:none}}