/* dokulingo — landing page styles */
:root{
  --ink:#0e0d0b; --ink-2:#1b1a17; --paper:#f2eee4; --paper-2:#e7e1d2; --muted:#6a655a;
  --acc:#ff4a1c; --lime:#d2ff3a; --blue:#3446ff;
  --f-latin:"Bricolage Grotesque",system-ui,sans-serif;
  --f-disp:"Bricolage Grotesque","Zen Kaku Gothic New",system-ui,sans-serif;
  --f-body:"Zen Kaku Gothic New",system-ui,-apple-system,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;
  --gut:clamp(16px,4vw,56px);
  --ease:cubic-bezier(.2,.7,0,1);
  --shadow:6px 6px 0 var(--ink);
}
html[lang=ja]{--f-disp:"Dela Gothic One","Zen Kaku Gothic New",system-ui,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip;-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--paper);color:var(--ink);font:500 17px/1.75 var(--f-body);overflow-x:clip;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
html[lang=en] body{line-height:1.6}
html[lang=ja] body{word-break:auto-phrase;line-break:strict}
body::after{content:"";position:fixed;inset:0;z-index:300;pointer-events:none;opacity:.07;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
img,svg{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:3px solid var(--acc);outline-offset:3px;border-radius:6px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:12px;z-index:400;background:var(--ink);color:var(--paper);padding:.6em 1em;border-radius:8px}
.skip:focus{left:12px}
em{font-style:normal}

/* progress + cursor */
.progress{position:fixed;inset:0 0 auto;height:3px;background:var(--acc);transform:scaleX(var(--p,0));transform-origin:left;z-index:60}
.cursor{position:fixed;left:0;top:0;width:12px;height:12px;border-radius:50%;background:#fff;mix-blend-mode:difference;pointer-events:none;z-index:250;
  translate:-50% -50%;transition:width .35s var(--ease),height .35s var(--ease);display:none}
.has-cursor .cursor{display:block}
.cursor.big{width:72px;height:72px}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:16px var(--gut);transition:background .4s,box-shadow .4s}
.nav.solid{background:color-mix(in srgb,var(--paper) 93%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(14,13,11,.08)}
.brand{font:800 1.55rem/1 var(--f-latin);letter-spacing:-.045em;text-decoration:none;display:inline-flex;align-items:baseline}
.brand span{color:var(--acc)}
.brand i{width:.32em;height:.32em;border-radius:50%;background:var(--ink);margin-left:.08em;animation:blink 2.4s infinite}
@keyframes blink{0%,70%,100%{opacity:1}80%,90%{opacity:.15}}
.nav-r{display:flex;align-items:center;gap:12px}
.lang{font-size:.88rem;font-weight:700;text-decoration:none;padding:.5em .95em;border:1.5px solid var(--ink);border-radius:999px;transition:background .3s,color .3s}
.lang:hover{background:var(--ink);color:var(--paper)}

/* buttons */
.btn{position:relative;isolation:isolate;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:1em 1.6em;border:0;border-radius:999px;
  background:var(--ink);color:var(--paper);font:700 1rem/1.2 var(--f-body);text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .4s var(--ease)}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--acc);border-radius:inherit;transform:translateY(101%);transition:transform .55s var(--ease)}
.btn:hover::before,.btn:focus-visible::before{transform:none}
.btn span{display:inline-block;transition:transform .3s var(--ease)}
.btn-sm{padding:.7em 1.2em;font-size:.88rem}
.btn[disabled]{cursor:default}

/* hero */
.hero{position:relative;min-height:100svh;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);align-items:center;gap:3vw;padding:120px var(--gut) 90px}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(40% 50% at 85% 25%,rgba(255,74,28,.16),transparent 70%),radial-gradient(35% 40% at 70% 85%,rgba(210,255,58,.35),transparent 70%)}
.eyebrow{display:inline-flex;align-items:center;gap:.65em;margin:0;padding:.45em 1em;border:1.5px solid var(--ink);border-radius:999px;background:var(--paper);font-size:.82rem;font-weight:700;letter-spacing:.04em}
.pulse{position:relative;width:8px;height:8px;border-radius:50%;background:var(--acc)}
.pulse::after{content:"";position:absolute;inset:0;border-radius:50%;background:var(--acc);animation:ping 1.8s var(--ease) infinite}
@keyframes ping{to{transform:scale(3.2);opacity:0}}
.hero-h{font:800 clamp(2.9rem,6.6vw,6.8rem)/.92 var(--f-disp);letter-spacing:-.038em;margin:.35em 0 .35em}
html[lang=ja] .hero-h{font-weight:400;font-size:clamp(2.3rem,5vw,5.2rem);line-height:1.16;letter-spacing:-.02em}
.ln{display:block;overflow:hidden;padding:.02em 0 .1em;margin-bottom:-.08em}
.ln>span{display:inline-block}
.js .ln>span{transform:translateY(110%);animation:up 1.1s var(--ease) forwards}
.js .ln:nth-child(2)>span{animation-delay:.12s}
.js .ln:nth-child(3)>span{animation-delay:.26s}
.js .ln:nth-child(4)>span{animation-delay:.38s}
@keyframes up{to{transform:none}}
.hero-h em{background:linear-gradient(var(--lime),var(--lime)) no-repeat 0 86%/100% .3em;padding:0 .04em}
.js .hero-h em{background-size:0 .3em;animation:marker .9s 1.05s var(--ease) forwards}
@keyframes marker{to{background-size:100% .3em}}
.hero-h s{text-decoration:none;position:relative;color:var(--muted)}
.hero-h s::after{content:"";position:absolute;left:-3%;right:-3%;top:50%;height:.1em;background:var(--acc);border-radius:9px;rotate:-3deg}
.js .hero-h s::after{transform:scaleX(0);transform-origin:left;animation:strike .6s .8s var(--ease) forwards}
@keyframes strike{to{transform:none}}
.lead{max-width:34em;margin:0;font-size:clamp(1rem,1.2vw,1.12rem);color:#3b3832}
.lead strong{color:var(--ink);text-decoration:underline wavy var(--acc) 2px;text-underline-offset:5px}
.js .hero .lead,.js .hero .join,.js .hero .eyebrow{opacity:0;animation:fade 1s var(--ease) forwards}
.js .hero .eyebrow{animation-delay:.05s}
.js .hero .lead{animation-delay:.5s}
.js .hero .join{animation-delay:.65s}
@keyframes fade{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* form */
.join{position:relative;max-width:560px;margin-top:2.1rem}
.field{display:flex;gap:6px;padding:6px;background:#fffdf8;border:2px solid var(--ink);border-radius:999px;box-shadow:var(--shadow);transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.field:focus-within{box-shadow:8px 8px 0 var(--acc);transform:translate(-2px,-2px)}
.field input{flex:1;min-width:0;border:0;background:transparent;padding:0 1.1em;font:500 1rem var(--f-body);color:var(--ink);outline:none}
.field input::placeholder{color:#a19b8e}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.note{margin:.9em 0 0 .4em;font-size:.8rem;color:var(--muted)}
.msg{margin:.5em 0 0 .4em;font-weight:700;min-height:1.5em;font-size:.95rem}
.join.err .msg{color:var(--acc)}
.join.ok .msg{color:#16803c}
.join.ok .field{box-shadow:6px 6px 0 #16803c}
.join.ok .btn{background:#16803c}
.join.busy .btn span{opacity:.6}

/* phones */
.hero-phones{position:relative;height:min(80vh,740px);--mx:0;--my:0}
.phone{--w:260px;position:absolute;width:var(--w);aspect-ratio:9/19;padding:calc(var(--w)*.03);background:var(--ink);border-radius:calc(var(--w)*.17);
  box-shadow:0 50px 90px -40px rgba(14,13,11,.55),inset 0 0 0 1.5px #34322d;
  transform:translate3d(calc(var(--mx)*var(--d,10px)),calc(var(--my)*var(--d,10px)),0);transition:transform .8s var(--ease)}
.phone::after{content:"";position:absolute;top:calc(var(--w)*.055);left:50%;width:28%;height:calc(var(--w)*.06);translate:-50% 0;background:var(--ink);border-radius:99px;z-index:5}
.screen{position:relative;isolation:isolate;width:100%;height:100%;overflow:hidden;border-radius:calc(var(--w)*.14);background:#222}
.p1{--w:clamp(170px,14.5vw,232px);--d:-14px;left:0;top:20%;rotate:-9deg;animation:float 7s ease-in-out infinite}
.p2{--w:clamp(210px,18.5vw,296px);--d:22px;left:calc(50% - var(--w)/2);top:3%;rotate:3deg;z-index:2;animation:float 6s ease-in-out -2s infinite}
.p3{--w:clamp(170px,14.5vw,232px);--d:-8px;right:0;top:32%;rotate:9deg;animation:float 8s ease-in-out -4s infinite}
@keyframes float{50%{translate:0 -16px}}
.js .hero-phones .phone{opacity:0;animation:rise 1.3s var(--ease) forwards,float 7s ease-in-out 1.3s infinite}
.js .hero-phones .p1{animation-delay:.35s,1.65s}
.js .hero-phones .p2{animation-delay:.2s,1.5s}
.js .hero-phones .p3{animation-delay:.5s,1.8s}
@keyframes rise{from{opacity:0;translate:0 120px}to{opacity:1;translate:0 0}}

/* video scenes */
.s-orange{background:radial-gradient(120% 70% at 15% 5%,#ffb46a,transparent 55%),radial-gradient(90% 70% at 95% 95%,#9d1a05,transparent 60%),var(--acc)}
.s-blue{background:radial-gradient(120% 70% at 85% 0%,#9aa6ff,transparent 55%),radial-gradient(90% 70% at 5% 100%,#10137a,transparent 60%),var(--blue)}
.s-lime{background:radial-gradient(120% 70% at 20% 0%,#fdffc9,transparent 55%),radial-gradient(90% 70% at 100% 100%,#5f8f00,transparent 60%),#c6f53a}
.screen::before,.clip::before{content:"";position:absolute;z-index:-1;width:90%;aspect-ratio:1;left:-25%;top:-5%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.55),transparent 65%);mix-blend-mode:soft-light;animation:drift 9s ease-in-out infinite alternate}
@keyframes drift{to{transform:translate(60%,70%) scale(1.3)}}
.poster{position:absolute;inset:0 0 28%;display:grid;place-items:center;text-align:center;font:800 calc(var(--w)*var(--ps,.235))/.86 var(--f-latin);letter-spacing:-.06em;color:rgba(255,255,255,.94);
  text-shadow:0 6px 30px rgba(0,0,0,.18);animation:kb 6s ease-in-out infinite alternate}
.s-lime .poster{color:var(--ink);text-shadow:none}
@keyframes kb{to{transform:scale(1.07) rotate(-2deg)}}
.bars{position:absolute;z-index:6;top:calc(var(--w)*.15);left:8%;right:8%;display:flex;gap:4px}
.bars i{position:relative;flex:1;height:3px;border-radius:3px;background:rgba(255,255,255,.35);overflow:hidden}
.bars i.on{background:#fff}
.bars.live i::after{content:"";position:absolute;inset:0;background:#fff;transform:scaleX(0);transform-origin:left}
.bars.live i.done::after{transform:none}
.bars.live i.cur::after{animation:fill var(--dur,5s) linear forwards}
@keyframes fill{to{transform:none}}
.cap{position:absolute;z-index:4;left:6%;right:6%;bottom:5%;padding:.8em .95em;border-radius:calc(var(--w)*.06);background:rgba(12,11,9,.55);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  color:#fff;font-size:calc(var(--w)*.054);line-height:1.38;background:rgba(12,11,9,.66);backdrop-filter:none;-webkit-backdrop-filter:none}
.cap p{margin:0}
.cap .src{font-family:var(--f-latin);font-weight:700;letter-spacing:-.01em;margin-bottom:.3em}
.cap .tr{font-size:.82em;opacity:.78}
.cap b{color:var(--lime);font-weight:800}
.side{position:absolute;z-index:4;right:5%;bottom:36%;display:flex;flex-direction:column;gap:calc(var(--w)*.045)}
.side i{width:calc(var(--w)*.105);aspect-ratio:1;border-radius:50%;background:rgba(255,255,255,.3)}
.side i:first-child{background:rgba(255,255,255,.9)}
.sticker{position:absolute;z-index:3;padding:.55em 1em;border-radius:999px;font:800 clamp(.85rem,1.2vw,1.05rem)/1 var(--f-disp);border:2px solid var(--ink);white-space:nowrap}
html[lang=ja] .sticker{font-weight:400}
.st1{left:-2%;bottom:9%;background:var(--lime);rotate:-7deg;box-shadow:4px 4px 0 var(--ink)}
.st2{right:-1%;top:6%;background:var(--ink);color:var(--paper);rotate:8deg}
.js .sticker{opacity:0;animation:pop .7s var(--ease) forwards}
.js .st1{animation-delay:1.3s}
.js .st2{animation-delay:1.5s}
@keyframes pop{from{opacity:0;transform:scale(.4)}to{opacity:1;transform:none}}
.scroll-hint{position:absolute;left:var(--gut);bottom:26px;width:26px;height:42px;border:2px solid var(--ink);border-radius:20px}
.scroll-hint span{position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:4px;background:var(--ink);animation:wheel 1.8s var(--ease) infinite}
@keyframes wheel{to{transform:translateY(14px);opacity:0}}

/* marquee */
.marquee{position:relative;z-index:2;width:106vw;margin:0 -3vw;padding:26px 0;background:var(--ink);color:var(--paper);rotate:-2deg;overflow:hidden}
.mq-row{display:flex;overflow:hidden;white-space:nowrap;font:800 clamp(1.5rem,3.2vw,2.8rem)/1.25 var(--f-disp);letter-spacing:-.02em}
html[lang=ja] .mq-row{font-weight:400}
.mq-row.rev{color:transparent;-webkit-text-stroke:1.2px var(--paper)}
.mq-track{display:flex;flex-shrink:0;align-items:center;animation:mq 48s linear infinite}
.mq-row.rev .mq-track{animation-direction:reverse;animation-duration:56s}
.mq-track span{padding:0 .5em}
.sep{font-style:normal;color:var(--acc);-webkit-text-stroke:0;font-size:.7em}
.mq-row.rev .sep{color:var(--lime)}
@keyframes mq{to{transform:translateX(-100%)}}

/* story */
.story{position:relative;height:420vh;margin-top:-4vw;padding-top:4vw;background:var(--ink);color:var(--paper)}
.story-pin{position:sticky;top:0;height:100svh;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);align-items:center;gap:5vw;padding:80px var(--gut) 40px}
.kicker{display:inline-flex;align-items:center;gap:.8em;margin:0 0 1.4em;font:700 .78rem/1 var(--f-latin);letter-spacing:.2em;text-transform:uppercase;color:var(--acc)}
html[lang=ja] .kicker{font-family:var(--f-body);letter-spacing:.14em}
.kicker::before{content:"";width:28px;height:2px;background:currentColor}
.steps{position:relative;list-style:none;margin:0;padding:0;min-height:15em}
.step{position:absolute;inset:0 auto auto 0;opacity:0;translate:0 40px;transition:opacity .6s var(--ease),translate .8s var(--ease)}
.step.on{opacity:1;translate:0 0}
.step.past{translate:0 -40px}
.date{display:block;margin-bottom:.25em;font:800 clamp(3rem,6.6vw,6.4rem)/1 var(--f-disp);letter-spacing:-.05em}
html[lang=ja] .date{font-weight:400;letter-spacing:-.02em}
.step:last-child .date{color:var(--lime);font-size:clamp(2.4rem,5vw,4.8rem)}
.step p{margin:0;font-size:clamp(1.1rem,1.7vw,1.55rem);line-height:1.6;color:rgba(242,238,228,.82)}
.step em{color:var(--lime)}
.chart{position:relative}
.chart svg{width:100%;height:auto;overflow:visible}
.chart .grid line{stroke:rgba(242,238,228,.12);stroke-width:1.5;stroke-dasharray:4 8}
.decay,.rise,.rise-glow{fill:none;stroke-linecap:round;stroke-dasharray:1 2;stroke-dashoffset:1}
.decay{stroke:var(--paper);stroke-width:4}
.rise{stroke:var(--lime);stroke-width:7}
.rise-glow{stroke:var(--lime);stroke-width:26;opacity:.16}
.meter{margin:0 0 18px;display:flex;justify-content:flex-end;align-items:baseline;gap:.15em;font:800 clamp(3.4rem,6vw,6rem)/1 var(--f-latin);letter-spacing:-.05em;font-variant-numeric:tabular-nums;color:var(--paper);transition:color .4s}
.meter-l{align-self:center;margin-right:.6em;font:700 .78rem/1 var(--f-body);letter-spacing:.14em;color:rgba(242,238,228,.55)}
.meter-u{font-size:.45em}
.chart.low .meter{color:var(--acc)}
.chart.rising .meter{color:var(--lime)}
.dot-d{fill:var(--paper)}
.dot-r{fill:var(--lime);opacity:0;transition:opacity .3s}
.chart.rising .dot-r{opacity:1}
.axis{display:flex;justify-content:space-between;margin-top:14px;padding-top:10px;border-top:1.5px solid rgba(242,238,228,.25);font-size:.8rem;color:rgba(242,238,228,.5)}
.nav.dark{background:color-mix(in srgb,var(--ink) 78%,transparent);color:var(--paper);box-shadow:0 1px 0 rgba(242,238,228,.1)}
.nav.dark .brand i{background:var(--paper)}
.nav.dark .lang{border-color:var(--paper)}
.nav.dark .lang:hover{background:var(--paper);color:var(--ink)}
.nav.dark .btn{background:var(--paper);color:var(--ink)}
.nav.dark .btn:hover{color:var(--paper)}

/* section headings */
h2{font:800 clamp(2.5rem,5.6vw,5.4rem)/.96 var(--f-disp);letter-spacing:-.035em;margin:0 0 .45em}
html[lang=ja] h2{font-weight:400;font-size:clamp(2rem,4.4vw,4.1rem);line-height:1.22;letter-spacing:-.02em}
h2 em{color:var(--acc)}

/* demo */
.demo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:6vw;padding:clamp(100px,13vw,180px) var(--gut)}
.ticks{list-style:none;margin:2.2rem 0 0;padding:0;max-width:30em}
.ticks li{position:relative;padding:.95em 0 .95em 2.1em;border-top:1.5px solid var(--ink);font-weight:700}
.ticks li:last-child{border-bottom:1.5px solid var(--ink)}
.ticks li::before{content:"✳";position:absolute;left:.2em;color:var(--acc)}
.demo-stage{position:relative;display:flex;justify-content:center;align-items:center;gap:28px;min-height:640px}
.phone-wrap{position:relative;isolation:isolate;display:grid;place-items:center}
.phone-wrap::before{content:"";position:absolute;z-index:-2;width:clamp(330px,38vw,540px);aspect-ratio:1;border-radius:50%;background:var(--lime)}
.ring{position:absolute;z-index:-1;max-width:none;width:clamp(380px,43vw,610px);aspect-ratio:1;animation:spin 30s linear infinite;pointer-events:none}
.ring text{font:800 10.5px var(--f-latin);letter-spacing:.32em;fill:var(--ink)}
@keyframes spin{to{rotate:360deg}}
.phone.big{position:relative;--w:clamp(250px,24vw,330px);rotate:-3deg;box-shadow:0 60px 100px -40px rgba(14,13,11,.6),inset 0 0 0 1.5px #34322d}
.reel{position:absolute;inset:0;transform:translateY(calc(var(--i,0)*-100%));transition:transform .9s var(--ease);outline-offset:-3px}
.clip{position:relative;isolation:isolate;height:100%;overflow:hidden}
.confetti{position:fixed;z-index:260;width:9px;height:9px;border-radius:2px;pointer-events:none;animation:conf 1s var(--ease) forwards}
@keyframes conf{to{transform:translate(var(--x),var(--y)) rotate(var(--r));opacity:0}}
.hl{font:inherit;color:var(--lime);background:none;border:0;padding:0;border-bottom:2px dashed var(--lime);cursor:pointer}
.cap[data-tip]::before{content:attr(data-tip);position:absolute;left:0;bottom:calc(100% + 10px);padding:.5em .8em;border-radius:10px;background:var(--paper);color:var(--ink);
  font:700 .85em/1.2 var(--f-body);white-space:nowrap;box-shadow:3px 3px 0 var(--ink);opacity:0;translate:0 8px;transition:opacity .35s var(--ease),translate .35s var(--ease)}
.cap.tip::before{opacity:1;translate:0 0}
.reel-ctrl{position:absolute;right:0;bottom:4%;display:flex;gap:10px}
.rc{width:52px;height:52px;border-radius:50%;border:2px solid var(--ink);background:var(--paper);color:var(--ink);font:700 1.2rem/1 var(--f-latin);cursor:pointer;transition:background .3s,color .3s,transform .3s var(--ease)}
.rc:hover{background:var(--ink);color:var(--paper);transform:scale(1.06)}
.preview-tag{position:absolute;bottom:-34px;left:0;right:0;margin:0;text-align:center;font-size:.75rem;color:var(--muted)}

/* why */
.why{padding:clamp(60px,8vw,120px) var(--gut) clamp(100px,12vw,160px)}
.why-h{text-align:center}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,1.6vw,24px);margin-top:clamp(2.5rem,5vw,4.5rem);perspective:1200px}
.card{position:relative;display:flex;flex-direction:column;min-height:400px;padding:30px 28px 34px;border:2px solid var(--ink);border-radius:28px;overflow:hidden;
  transition:transform .6s var(--ease),box-shadow .6s var(--ease),opacity .9s var(--ease),translate .9s var(--ease);transform-style:preserve-3d}
.card:hover{box-shadow:10px 14px 0 var(--ink)}
.c1{background:var(--acc)}
.c2{background:var(--lime);transition-delay:0s,0s,.1s,.1s}
.c3{background:var(--blue);color:var(--paper)}
.c3{transition-delay:0s,0s,.2s,.2s}
.num{font:800 clamp(4rem,7vw,6.5rem)/.9 var(--f-latin);letter-spacing:-.06em;margin-bottom:auto}
.card h3{margin:1.2em 0 .5em;font:800 clamp(1.5rem,2.2vw,2rem)/1.1 var(--f-disp);letter-spacing:-.03em}
html[lang=ja] .card h3{font-weight:400;font-size:clamp(1.35rem,1.9vw,1.75rem);letter-spacing:0;line-height:1.3}
.card p{margin:0;font-weight:500}
.card::after{content:"";position:absolute;right:-30%;top:-30%;width:70%;aspect-ratio:1;border-radius:50%;background:rgba(255,255,255,.18);transition:transform .8s var(--ease)}
.card:hover::after{transform:scale(1.4)}

/* cta */
.cta{padding:0 var(--gut) clamp(80px,10vw,140px)}
.cta-in{position:relative;isolation:isolate;overflow:hidden;padding:clamp(56px,9vw,130px) clamp(22px,6vw,96px);border-radius:clamp(28px,4vw,56px);background:var(--ink);color:var(--paper);text-align:center}
.cta-in::before,.cta-in::after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(70px);opacity:.55}
.cta-in::before{width:45%;aspect-ratio:1;left:-12%;top:-30%;background:var(--acc);animation:drift2 12s ease-in-out infinite alternate}
.cta-in::after{width:40%;aspect-ratio:1;right:-10%;bottom:-35%;background:var(--blue);animation:drift2 14s ease-in-out -5s infinite alternate}
@keyframes drift2{to{transform:translate(25%,20%) scale(1.15)}}
.cta-h{font-size:clamp(2.6rem,6.6vw,6.6rem)}
html[lang=ja] .cta-h{font-size:clamp(2rem,5vw,4.6rem)}
.cta-h em{color:var(--lime)}
.cta .lead{margin:0 auto;color:rgba(242,238,228,.75)}
.cta .join{margin:2.4rem auto 0;text-align:left}
.cta .field{box-shadow:6px 6px 0 var(--acc);border-color:var(--paper)}
.cta .field:focus-within{box-shadow:8px 8px 0 var(--lime)}
.cta .btn::before{background:var(--acc)}
.cta .note{color:rgba(242,238,228,.6)}
.cta .join.err .msg{color:#ff8b6d}
.cta .join.ok .msg{color:var(--lime)}

/* faq */
.faq{max-width:900px;margin:0 auto;padding:0 var(--gut) clamp(100px,12vw,160px)}
.faq h2{text-align:center}
.faq-list{margin-top:2.5rem}
details{border-top:2px solid var(--ink)}
details:last-child{border-bottom:2px solid var(--ink)}
summary{position:relative;list-style:none;cursor:pointer;padding:1.35em 3.4em 1.35em 0;font-weight:700;font-size:clamp(1.05rem,1.6vw,1.28rem)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:0;top:50%;translate:0 -50%;width:1.7em;height:1.7em;display:grid;place-items:center;border:2px solid var(--ink);border-radius:50%;font:700 1.1rem/1 var(--f-latin);transition:rotate .4s var(--ease),background .3s}
summary:hover::after{background:var(--lime)}
details[open] summary::after{rotate:45deg;background:var(--acc)}
details p{margin:0;padding:0 3em 1.5em 0;color:#4a463e}

/* footer */
.foot{overflow:hidden;padding-top:20px}
.foot-big{margin:0;text-align:center;font:800 23vw/.78 var(--f-latin);letter-spacing:-.06em;color:var(--ink);translate:0 6%;user-select:none}
.foot-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:22px var(--gut) calc(22px + env(safe-area-inset-bottom));background:var(--ink);color:var(--paper);font-size:.88rem;position:relative}
.foot-row nav{display:flex;gap:22px;flex-wrap:wrap}
.foot-row a{text-decoration:none;opacity:.8}
.foot-row a:hover{opacity:1;text-decoration:underline}

/* reveal */
.js [data-reveal]{opacity:0;translate:0 48px;transition:opacity 1s var(--ease),translate 1s var(--ease)}
.js [data-reveal].in{opacity:1;translate:0 0}

/* privacy page */
.doc{max-width:760px;margin:0 auto;padding:140px var(--gut) 110px}
.doc h1{font:800 clamp(2.4rem,5vw,4rem)/1.05 var(--f-disp);letter-spacing:-.04em;margin:0 0 .3em}
html[lang=ja] .doc h1{font-weight:400;letter-spacing:0}
.doc h2{font:700 1.2rem/1.4 var(--f-body);letter-spacing:0;margin:2.4em 0 .6em}
.doc .updated{color:var(--muted);font-size:.9rem}
.doc .back{font-weight:700}
.nf{text-align:center;min-height:100svh;display:flex;flex-direction:column;justify-content:center}
.nf-big{margin:0;font:800 clamp(7rem,28vw,16rem)/.8 var(--f-latin);letter-spacing:-.07em;color:var(--acc)}

/* responsive */
@media (max-width:960px){
  .hero{grid-template-columns:1fr;padding-top:104px;gap:28px;min-height:auto}
  .hero-phones{height:min(118vw,560px)}
  .p1{--w:min(36vw,200px);left:0}
  .p2{--w:min(46vw,250px)}
  .p3{--w:min(36vw,200px);right:0}
  .scroll-hint{display:none}
  .story-pin{grid-template-columns:1fr;grid-template-rows:auto auto;align-content:center;gap:28px;padding-top:90px}
  .chart{order:-1;max-width:520px}
  .steps{min-height:11.5em}
  .demo{grid-template-columns:1fr}
  .demo-stage{min-height:600px}
  .cards{grid-template-columns:1fr}
  .card{min-height:280px}
}
@media (max-width:560px){
  body{font-size:16px}
  .nav{padding:12px 16px}
  .nav .btn-sm{display:none}
  .hero{padding:96px 16px 64px}
  .field{flex-direction:column;border-radius:22px}
  .field input{padding:.9em 1em}
  .field .btn{width:100%}
  .demo-stage{flex-direction:column;min-height:auto;padding:40px 0 48px}
  .phone-wrap::before{width:min(92vw,400px)}
  .ring{width:min(100vw,440px)}
  .reel-ctrl{flex-direction:row}
  .marquee{padding:18px 0}
  details p{padding-right:0}
}

/* motion preferences & no-js fallbacks */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;animation-delay:0s!important;transition-delay:0s!important}
  .mq-track,.ring,.poster,.screen::before,.clip::before{animation:none!important}
}
html:not(.js) .story{height:auto}
html:not(.js) .story-pin{position:static;height:auto;padding:110px var(--gut)}
html:not(.js) .step{position:static;opacity:1;translate:none;margin-bottom:2.2rem}
html:not(.js) .steps{min-height:0}
html:not(.js) .decay,html:not(.js) .rise,html:not(.js) .rise-glow{stroke-dashoffset:0}
.foot-big span{color:var(--acc)}
@media (max-width:560px){.reel-ctrl{position:static}.preview-tag{bottom:8px}}
/* pause decorative loops while off-screen */
.off,.off *,.off *::before,.off *::after{animation-play-state:paused!important}

/* ===== rotating language word (hero) ===== */
.rot{position:relative;display:inline-block;vertical-align:top;height:calc(1.16em + .16em);height:calc(1lh + .16em);margin-bottom:-.16em;overflow:hidden;color:var(--acc);transition:width .7s var(--ease)}
.rot-w{display:block;position:absolute;left:0;top:0;white-space:nowrap;transform:translateY(110%);transition:transform .75s var(--ease)}
.rot-w:first-child{position:relative}
.rot-w.on{transform:none}
.rot-w.out{transform:translateY(-110%)}

/* ===== clips: language pair + per-language posters ===== */
.pair{position:absolute;z-index:6;top:calc(var(--w)*.21);left:8%;padding:.4em .8em;border-radius:99px;background:rgba(12,11,9,.45);color:#fff;font:800 calc(var(--w)*.044)/1 var(--f-latin);letter-spacing:.06em}
.pair i{font-style:normal;margin:0 .35em;color:var(--lime)}
.poster[lang=ko]{font-family:"Black Han Sans",var(--f-latin);font-weight:400;letter-spacing:-.01em;line-height:1.02}
.poster[lang=ja]{font-family:"Dela Gothic One",sans-serif;font-weight:400;letter-spacing:-.02em;line-height:1.04}
.s-pink{background:radial-gradient(120% 70% at 20% 0%,#ffc4e3,transparent 55%),radial-gradient(90% 70% at 100% 100%,#b8125f,transparent 60%),#ff5fae}
.s-ink{background:radial-gradient(120% 70% at 80% 0%,#45433c,transparent 55%),radial-gradient(80% 60% at 0% 100%,rgba(210,255,58,.32),transparent 60%),#141310}
.s-ink .poster{color:var(--lime)}

/* ===== split-text headings ===== */
.js [data-split] .w{display:inline-block;opacity:0;transform:translateY(.55em) rotate(5deg);transform-origin:left bottom;
  transition:opacity .6s var(--ease),transform .9s var(--ease);transition-delay:calc(var(--i)*26ms)}
.js [data-split].in .w{opacity:1;transform:none}

/* ===== languages ===== */
.langs{position:relative;overflow:hidden;background:var(--blue);color:var(--paper);padding:clamp(100px,12vw,170px) var(--gut);text-align:center}
.hellos span{position:absolute;font:800 clamp(1.2rem,2.6vw,2.6rem)/1 var(--f-latin);color:transparent;-webkit-text-stroke:1.2px rgba(242,238,228,.3);white-space:nowrap;pointer-events:none;animation:bob var(--d,7s) ease-in-out infinite alternate}
@keyframes bob{to{transform:translateY(-24px) rotate(-4deg)}}
.langs-in{position:relative;max-width:1000px;margin:0 auto}
.langs .kicker{color:var(--lime)}
.langs .lead{margin:0 auto;max-width:40em;color:rgba(242,238,228,.85)}
.pair-ui{display:flex;justify-content:center;align-items:flex-end;flex-wrap:wrap;gap:14px;margin-top:2.6rem}
.pick{display:flex;flex-direction:column;align-items:flex-start;gap:.55em;font-size:.78rem;font-weight:700;letter-spacing:.08em}
.pick select{-webkit-appearance:none;appearance:none;min-width:12em;padding:.85em 2.8em .85em 1.2em;border:2px solid var(--paper);border-radius:999px;color:var(--paper);font:700 1.1rem/1.2 var(--f-body);cursor:pointer;
  background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23f2eee4' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 1.1em center/12px}
.pick select:hover{background-color:rgba(242,238,228,.1)}
.pick select option{color:var(--ink)}
.swap{width:58px;height:58px;border-radius:50%;border:2px solid var(--ink);background:var(--lime);color:var(--ink);font:800 1.45rem/1 var(--f-latin);cursor:pointer;box-shadow:4px 4px 0 var(--ink);transition:transform .6s var(--ease)}
.swap:hover{transform:rotate(-20deg)}
.swap.spin{transform:rotate(180deg)}
.pair-card{margin:2.4rem auto 0;max-width:880px;padding:clamp(22px,3vw,38px);border:2px solid var(--ink);border-radius:28px;background:var(--paper);color:var(--ink);box-shadow:10px 10px 0 var(--ink);perspective:800px}
.pc-cap{margin:0 0 1.1rem;font-size:.85rem;font-weight:700;color:var(--muted)}
.pc-row{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:clamp(12px,2vw,28px)}
.pc-l{display:inline-block;margin-bottom:.6em;padding:.3em .85em;border:1.5px solid var(--ink);border-radius:99px;font-size:.78rem;font-weight:700}
.pc-t{margin:0;font:800 clamp(1.4rem,3.1vw,2.6rem)/1.15 var(--f-latin);letter-spacing:-.02em}
.pc-t.to{color:var(--acc)}
.pc-arrow{font:800 2rem/1 var(--f-latin);color:var(--acc)}
.pair-card.flip .pc-t{animation:flipin .65s var(--ease)}
.pair-card.flip .pc-arrow{animation:nudge .65s var(--ease)}
@keyframes flipin{from{opacity:0;transform:translateY(.45em) rotateX(70deg)}}
@keyframes nudge{40%{transform:translateX(10px)}}
.chips{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:2.2rem 0 0;padding:0}
.chip{padding:.6em 1.15em;border:1.5px solid rgba(242,238,228,.55);border-radius:99px;background:transparent;color:var(--paper);font:700 .92rem/1 var(--f-body);cursor:pointer;transition:background .3s,color .3s,border-color .3s,transform .3s var(--ease)}
.chip:hover{border-color:var(--paper);transform:translateY(-3px)}
.chip.on{background:var(--lime);border-color:var(--lime);color:var(--ink)}

/* ===== youtube posting ===== */
.yt{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);align-items:center;gap:6vw;padding:clamp(100px,13vw,180px) var(--gut)}
.yt h2 em{color:var(--acc)}
.yt-stage{padding:clamp(16px,2vw,28px);border:2px solid var(--ink);border-radius:32px;background:#fffdf8;box-shadow:10px 10px 0 var(--ink);rotate:1.5deg}
.yt-input{display:flex;align-items:center;gap:10px;padding:8px 8px 8px 14px;border:2px solid var(--ink);border-radius:999px;background:var(--paper)}
.yt-logo{flex:none;display:grid;place-items:center;width:34px;height:24px;border-radius:7px;background:var(--acc)}
.yt-logo i{width:0;height:0;margin-left:2px;border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent}
.yt-url{min-width:0;overflow:hidden;white-space:nowrap;font:500 .95rem/1.4 var(--f-latin);color:var(--ink)}
.caret{flex:none;width:2px;height:1.15em;margin-left:-6px;background:var(--ink);animation:blink 1s steps(1) infinite}
.yt-post{flex:none;margin-left:auto;padding:.75em 1.35em;border-radius:999px;background:var(--ink);color:var(--paper);font-weight:700;font-size:.9rem;transition:transform .2s var(--ease),background .3s}
.yt-stage.pressed .yt-post{transform:scale(.9);background:var(--acc)}
.yt-feed{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}
.thumb{position:relative;aspect-ratio:16/10;border:2px solid var(--ink);border-radius:16px;overflow:hidden;transition:border-color .3s}
.thumb::after{content:"";position:absolute;width:70%;aspect-ratio:1;right:-20%;bottom:-40%;border-radius:50%;background:rgba(255,255,255,.22)}
.play{position:absolute;z-index:1;left:50%;top:50%;width:44px;height:44px;margin:-22px 0 0 -22px;border-radius:50%;background:rgba(255,255,255,.94);box-shadow:0 6px 18px rgba(0,0,0,.2)}
.play::after{content:"";position:absolute;left:17px;top:13px;border-left:13px solid var(--ink);border-top:9px solid transparent;border-bottom:9px solid transparent}
.dur{position:absolute;z-index:1;right:8px;bottom:8px;padding:.25em .5em;border-radius:6px;background:rgba(12,11,9,.75);color:#fff;font:700 .72rem/1.2 var(--f-latin)}
.new-tag{position:absolute;z-index:1;left:8px;top:8px;padding:.35em .6em;border-radius:6px;background:var(--lime);color:var(--ink);font:800 .72rem/1 var(--f-latin);letter-spacing:.06em}
.yt-title{margin:.6em 0 .15em;font-size:.95rem;font-weight:700;line-height:1.35}
.yt-meta{margin:0;font-size:.78rem;color:var(--muted)}
.yt-stage:not(.added) .is-new .thumb{background:transparent!important;border-style:dashed;border-color:#b9b2a3}
.yt-stage:not(.added) .is-new .thumb>*,.yt-stage:not(.added) .is-new .thumb::after,.yt-stage:not(.added) .is-new p{opacity:0}
.yt-stage.added .is-new .thumb{animation:popin .7s var(--ease)}
.yt-stage.added .is-new p{animation:fade .6s .15s var(--ease) both}
@keyframes popin{from{transform:scale(.6) rotate(-4deg)}}


@media (max-width:960px){
  .yt{grid-template-columns:1fr}
  .pc-row{grid-template-columns:1fr;text-align:center}
  .pc-arrow{rotate:90deg}
}
@media (max-width:560px){
  .pick{flex:1 1 40%}
  .pick select{min-width:0;width:100%;font-size:1rem}
  .swap{order:3;width:50px;height:50px}
  .yt-stage{rotate:0deg;box-shadow:6px 6px 0 var(--ink);margin-right:6px}
  .yt-feed{gap:10px}
  .yt-title{font-size:.84rem}
  .yt-url{font-size:.8rem}
  .hellos span{-webkit-text-stroke-color:rgba(242,238,228,.2)}
}