@import url("https://fonts.googleapis.com/css2?family=Luckiest+Guy&display=swap");
:root{
  --bg:#f4f4f1;
  --paper:#fbfbf8;
  --ink:#0a0a0a;
  --muted:#6f6f69;
  --line:#d9d9d2;
  --accent:#245cff;
  --accent-soft:#dbe4ff;
  --night:#090b10;
  --lt-blue:#6495ed;
  --lt-ink:#020617;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-size:14px;font-family:Meiryo,"メイリオ","Yu Gothic UI","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
.container{width:min(1240px,calc(100% - 64px));margin:auto}
.header{position:sticky;top:0;z-index:50;background:rgba(244,244,241,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:13px;font-size:13px;font-weight:800;letter-spacing:.02em}
.brand-logo img{display:block;width:190px;max-width:36vw;height:auto}.footer .brand-logo img{filter:brightness(0) invert(1);width:180px}
.brand-mark{width:28px;height:28px;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:11px;font-weight:900;letter-spacing:-.04em}
.brand small{display:block;font-size:9px;font-weight:700;letter-spacing:.17em;color:#85857e;line-height:1.2;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:30px;font-size:11px;font-weight:700;letter-spacing:.04em}
.nav-links a{position:relative;padding:8px 0}
.nav-links a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:1px;background:var(--ink);transition:.25s ease}
.nav-links a:hover:after{right:0}
.menu-btn{display:none;border:0;background:transparent;width:40px;height:40px;font-size:22px}
.hero{position:relative;overflow:hidden;background:var(--paper);border-bottom:1px solid var(--line)}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(to right,rgba(10,10,10,.055) 1px,transparent 1px),linear-gradient(to bottom,rgba(10,10,10,.055) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(to right,black,rgba(0,0,0,.2) 64%,transparent)}
.hero-inner{position:relative;min-height:650px;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(360px,.88fr);align-items:center;gap:40px;padding:72px 0 62px}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:10px;font-weight:900;letter-spacing:.2em;text-transform:uppercase;color:var(--ink)}
.eyebrow:before{content:"";width:38px;height:1px;background:currentColor}
h1{font-size:clamp(42px,5.4vw,72px);line-height:.98;letter-spacing:-.065em;margin:28px 0 30px;font-weight:760}
.hero-copy{font-size:14px;line-height:1.9;color:#54544f;max-width:690px;margin:0}
.hero-actions{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-top:38px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 0;font-weight:800;font-size:12px;letter-spacing:.04em;border:0;border-bottom:1px solid currentColor;background:none;border-radius:0;transition:.2s ease}
.btn:hover{color:var(--accent)}
.btn-primary{color:var(--ink)}
.btn-secondary{color:inherit}
.hero-panel{position:relative;min-height:430px;border-left:1px solid var(--line);padding-left:42px;display:flex;align-items:center;justify-content:center}
.hero-panel:before,.hero-panel:after{content:"";position:absolute;border:1px solid rgba(36,92,255,.33);width:310px;height:310px;transform:rotate(45deg)}
.hero-panel:after{width:190px;height:190px;border-color:rgba(10,10,10,.16);transform:rotate(15deg)}
.panel-grid{position:relative;width:300px;height:300px;border:1px solid var(--ink);display:grid;place-items:center;transform:rotate(-7deg);background:rgba(251,251,248,.72);backdrop-filter:blur(5px)}
.panel-grid:before{content:"AI / DEVELOPMENT";font-size:11px;font-weight:900;letter-spacing:.2em;transform:rotate(7deg)}
.panel-grid:after{content:"HAKUSEKI 2026";position:absolute;bottom:18px;right:18px;font-size:8px;letter-spacing:.16em;transform:rotate(7deg);color:var(--muted)}
.panel-card{display:none}
.section{padding:88px 0;border-bottom:1px solid var(--line)}
.section.white{background:var(--paper)}
.section-head{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:end;margin-bottom:64px}
.section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.04;letter-spacing:-.055em;margin:14px 0 0}
.section-head p{max-width:620px;margin:0;color:var(--muted);font-size:13px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink)}
.card{position:relative;padding:34px 34px 44px 0;border-right:1px solid var(--line);min-height:300px;background:transparent}
.card+.card{padding-left:34px}
.card:last-child{border-right:0}
.card h3{margin:58px 0 16px;font-size:20px;letter-spacing:-.035em}.card p{margin:0;color:var(--muted);font-size:13px;max-width:320px}
.icon{width:auto;height:auto;background:none;color:var(--accent);font-size:11px;font-weight:900;letter-spacing:.16em}
.link-arrow{display:inline-flex;gap:8px;align-items:center;color:var(--ink);font-weight:800;font-size:12px;margin-top:28px;border-bottom:1px solid currentColor}
.link-arrow:hover{color:var(--accent)}
.feature{display:grid;grid-template-columns:1.08fr .92fr;gap:0;align-items:stretch;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.feature-box{min-height:410px;background:var(--night);color:#fff;padding:54px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between}
.feature-box:before{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(106,142,255,.45);right:-150px;top:-80px;transform:rotate(38deg)}
.feature-box:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(255,255,255,.2);right:20px;bottom:-110px;transform:rotate(-18deg)}
.feature-box .metric{position:relative;z-index:1;font-size:clamp(38px,5vw,62px);line-height:.95;font-weight:800;letter-spacing:-.07em}.feature-box p{position:relative;z-index:1;color:#aaaeb8;max-width:430px;margin:0;font-size:13px}.feature-box .eyebrow{color:#94abff}
.feature-copy{padding:58px 0 58px 64px;display:flex;flex-direction:column;justify-content:center}
.feature-copy h2{font-size:clamp(30px,4vw,46px);line-height:1.04;margin:18px 0 28px;letter-spacing:-.055em}.feature-copy p{color:var(--muted);max-width:520px;font-size:13px}
.band{background:var(--accent);color:#fff;padding:82px 0}.band-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end}.band h2{font-size:clamp(38px,5.5vw,64px);line-height:.9;letter-spacing:-.06em;margin:0 0 18px}.band p{margin:0;color:rgba(255,255,255,.78);max-width:630px;font-size:13px}.band .btn{color:#fff}
.footer{background:#090909;color:#fff;padding:62px 0 28px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:64px}.footer .brand-mark{background:#fff;color:#000}.footer h4{font-size:10px;text-transform:uppercase;letter-spacing:.18em;margin:0 0 16px;color:#7e7e78}.footer a,.footer p{color:#aaa;font-size:12px}.footer p{max-width:420px}.footer-links{display:grid;gap:10px}.copyright{margin-top:54px;padding-top:22px;border-top:1px solid #292929;font-size:10px;color:#666;letter-spacing:.08em}
.page-hero{position:relative;background:var(--paper);border-bottom:1px solid var(--line);padding:96px 0 72px;overflow:hidden}.page-hero:after{content:"";position:absolute;right:6vw;top:48px;width:220px;height:220px;border:1px solid rgba(36,92,255,.35);transform:rotate(31deg)}.page-hero h1{font-size:clamp(40px,5.4vw,64px);line-height:.95;margin:25px 0 28px;letter-spacing:-.065em}.page-hero p{max-width:720px;color:var(--muted);font-size:14px}
.content{background:transparent;border-top:1px solid var(--ink);padding:32px 0 0}.content h2{margin:0 0 20px;font-size:25px;letter-spacing:-.04em}.content h3{margin-top:48px;font-size:15px}.content p,.content li{color:#5d5d57}.content ul{padding-left:20px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:20px 0;border-bottom:1px solid var(--line);vertical-align:top}.table th{width:190px;color:var(--ink);font-size:12px;letter-spacing:.05em}.table td{color:var(--muted)}
.shop-links{display:flex;gap:24px;flex-wrap:wrap;margin-top:28px}.shop-link{padding:8px 0;border-bottom:1px solid var(--ink);font-weight:800;font-size:13px}
.form{display:grid;gap:24px}.form label{font-weight:800;font-size:11px;letter-spacing:.06em}.form input,.form textarea,.form select{width:100%;margin-top:9px;padding:13px 14px;border:1px solid #d7d7d2;border-radius:7px;background:#fbfbf9;outline:0;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.form input:hover,.form textarea:hover,.form select:hover{border-color:#bdbdb6}.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(36,92,255,.08)}.form textarea{min-height:160px;resize:vertical}
.notice{padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:12px;margin-top:28px}
@media(max-width:900px){.container{width:min(100% - 36px,1240px)}.nav{height:68px}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:var(--paper);border-bottom:1px solid var(--line);padding:20px 18px 26px;flex-direction:column;align-items:flex-start;gap:12px}.nav-links.open{display:flex}.menu-btn{display:block}.hero-inner{min-height:auto;grid-template-columns:1fr;padding:82px 0 64px}.hero-panel{min-height:360px;border-left:0;border-top:1px solid var(--line);padding:48px 0 0}.section{padding:82px 0}.section-head{grid-template-columns:1fr;gap:20px;margin-bottom:44px}.cards{grid-template-columns:1fr}.card,.card+.card{padding:28px 0 34px;border-right:0;border-bottom:1px solid var(--line);min-height:0}.card:last-child{border-bottom:0}.card h3{margin-top:28px}.feature{grid-template-columns:1fr}.feature-copy{padding:48px 0}.two-col,.footer-grid{grid-template-columns:1fr;gap:46px}.band-inner{grid-template-columns:1fr}.page-hero{padding:90px 0 68px}.page-hero:after{width:140px;height:140px;right:-30px;top:34px}}
@media(max-width:560px){.container{width:calc(100% - 28px)}h1{font-size:40px}.hero-inner{padding-top:64px}.hero-copy{font-size:14px}.hero-panel{min-height:300px}.panel-grid{width:220px;height:220px}.hero-panel:before{width:230px;height:230px}.hero-panel:after{width:150px;height:150px}.section{padding:68px 0}.feature-box{min-height:370px;padding:34px}.band{padding:64px 0}.table th{width:112px}.footer{padding-top:48px}}


/* =========================
   LAUGHTRADE Brand
========================= */
.lt-logotype{
  font-family:"Luckiest Guy","Arial Black",Arial,sans-serif;
  font-weight:400;
  letter-spacing:.04em;
  line-height:.9;
  color:var(--lt-blue);
}
.lt-lockup{display:inline-flex;align-items:center;gap:16px}
.lt-logo-mark{width:48px;height:48px;display:block}
.lt-logotype.lt-inline{font-size:26px}
.lt-product-hero{background:#fff}
.lt-product-hero:after{border-color:rgba(100,149,237,.48)}
.lt-product-hero .eyebrow{color:var(--lt-ink)}
.lt-product-hero h1{margin-top:30px}
.lt-product-hero .lt-logotype{font-size:clamp(48px,6vw,78px)}
.lt-feature-box{background:var(--lt-ink)}
.lt-feature-box:before{border-color:rgba(100,149,237,.58)}
.lt-feature-box .eyebrow{color:var(--lt-blue)}
.lt-feature-box .metric{color:var(--lt-blue);font-family:"Luckiest Guy","Arial Black",Arial,sans-serif;font-weight:400;letter-spacing:.04em}
.lt-band{background:var(--lt-blue);color:var(--lt-ink)}
.lt-band .lt-lockup{gap:18px}
.lt-band .lt-logo-mark{width:62px;height:62px}
.lt-band .lt-logotype{color:var(--lt-ink);font-size:clamp(38px,5vw,60px)}
.lt-band p{color:rgba(2,6,23,.68)}
.lt-band .btn{color:var(--lt-ink)}
.lt-band .btn:hover{color:#fff}
.lt-accent{color:var(--lt-blue)}
@media(max-width:560px){.lt-logo-mark{width:40px;height:40px}.lt-logotype.lt-inline{font-size:22px}.lt-band .lt-logo-mark{width:48px;height:48px}}

.footer-company-meta{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:11px;line-height:1.8;color:rgba(255,255,255,.55)}
.footer-company-meta a{color:inherit;text-decoration:none}.footer-company-meta a:hover{color:#fff}

/* =========================
   v8 — LAUGHTRADE navigation / compact band / experience
========================= */
.lt-laugh{color:var(--lt-ink)}
.lt-trade{color:var(--lt-blue)}

.lt-nav-link{padding-top:5px !important;padding-bottom:5px !important}
.lt-nav-logotype{font-family:"Luckiest Guy","Arial Black",Arial,sans-serif;font-size:15px;font-weight:400;letter-spacing:.035em;line-height:1;white-space:nowrap}
.lt-nav-link:after{background:var(--lt-blue) !important}

/* TOP product strip — no solid fill, only strong brand rules */
.lt-band{background:var(--paper);color:var(--lt-ink);padding:28px 0;border-top:5px solid var(--lt-blue);border-bottom:5px solid var(--lt-blue)}
.lt-band .band-inner{align-items:center;gap:28px}
.lt-band .lt-lockup{gap:11px}
.lt-band .lt-logo-mark{width:36px;height:36px}
.lt-band .lt-logotype{font-size:32px;line-height:.88}
.lt-band p{margin-top:7px;color:#5f6470;font-size:12px;line-height:1.65}
.lt-band .btn{min-height:36px;color:var(--lt-ink);font-size:11px}
.lt-band .btn:hover{color:var(--lt-blue)}

/* Product page lockup */
.lt-product-hero .lt-logotype .lt-laugh{color:var(--lt-ink)}
.lt-product-hero .lt-logotype .lt-trade{color:var(--lt-blue)}

/* Career / development experience */
.experience-head{margin-bottom:44px}
.experience-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink);border-bottom:1px solid var(--ink)}
.experience-item{padding:30px 30px 36px 0;min-height:300px;border-right:1px solid var(--line)}
.experience-item+.experience-item{padding-left:30px}
.experience-item:last-child{border-right:0}
.experience-no{display:block;color:var(--accent);font-size:9px;font-weight:900;letter-spacing:.17em;margin-bottom:44px}
.experience-item h3{font-size:18px;line-height:1.35;letter-spacing:-.035em;margin:0 0 17px}
.experience-item p{font-size:12.5px;line-height:1.9;color:var(--muted);margin:0}
.experience-note{margin-top:18px;color:#85857e;font-size:10px;letter-spacing:.02em}

@media(max-width:900px){
  .lt-nav-logotype{font-size:16px}
  .lt-band{padding:24px 0}
  .experience-grid{grid-template-columns:1fr}
  .experience-item,.experience-item+.experience-item{min-height:0;padding:28px 0;border-right:0;border-bottom:1px solid var(--line)}
  .experience-item:last-child{border-bottom:0}
  .experience-no{margin-bottom:22px}
}
@media(max-width:560px){
  .lt-band .lt-logo-mark{width:30px;height:30px}
  .lt-band .lt-logotype{font-size:27px}
}

/* =========================
   v9 compact product strip / footer
   ========================= */
.lt-band{background:var(--paper);color:var(--lt-ink);padding:18px 0;border:0}
.lt-band .band-inner{align-items:center;gap:22px}
.lt-band .lt-lockup{gap:9px}
.lt-band .lt-logo-mark{width:30px;height:30px}
.lt-band .lt-logotype{font-size:28px;line-height:.9}
.lt-band p{margin-top:5px;color:#5f6470;font-size:11px;line-height:1.55}
.lt-band .btn{min-height:32px;padding:0 0 4px;font-size:10px}
.footer.footer-compact{padding:26px 0 20px}
.footer-compact-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}
.footer.footer-compact .brand-logo img{width:150px}
.footer-compact-info{text-align:right;color:#8a8a8a;font-size:10px;line-height:1.75}
.footer-compact-info a{font-size:10px;color:#b0b0b0}
.footer-compact .copyright{margin-top:6px;padding-top:0;border-top:0;font-size:9px;color:#626262;letter-spacing:.07em}
@media(max-width:900px){.footer-compact-inner{align-items:flex-start;flex-direction:column;gap:18px}.footer-compact-info{text-align:left}.lt-band .band-inner{grid-template-columns:1fr auto}}
@media(max-width:560px){.lt-band{padding:16px 0}.lt-band .band-inner{grid-template-columns:1fr;gap:14px}.lt-band .lt-logo-mark{width:28px;height:28px}.lt-band .lt-logotype{font-size:25px}.footer.footer-compact{padding:22px 0 18px}}


/* =========================
   v10 — LAUGHTRADE sizing / dark logotype / contact CTA
   ========================= */
/* Product page main lockup: 60% of previous visual size */
.lt-product-hero .lt-lockup{gap:10px}
.lt-product-hero .lt-logo-mark{width:30px;height:30px}
.lt-product-hero .lt-logotype{font-size:clamp(30px,3.6vw,47px)}

/* On dark surfaces LAUGH is reversed to white, TRADE keeps brand blue */
.lt-feature-box .lt-dark-logotype{
  font-family:"Luckiest Guy","Arial Black",Arial,sans-serif;
  font-weight:400;
  letter-spacing:.04em;
  line-height:.9;
  font-size:clamp(30px,3.7vw,46px);
}
.lt-feature-box .lt-dark-logotype .lt-laugh{color:#fff}
.lt-feature-box .lt-dark-logotype .lt-trade{color:var(--lt-blue)}

/* Contact submit is intentionally a real button, unlike text-link CTAs */
.form .form-submit{
  width:auto;
  min-width:150px;
  min-height:44px;
  padding:0 28px;
  justify-self:start;
  border:1px solid var(--ink);
  border-radius:6px;
  background:var(--ink);
  color:#fff;
  box-shadow:none;
  cursor:pointer;
}
.form .form-submit:hover{
  border-color:var(--accent);
  background:var(--accent);
  color:#fff;
}
.form .form-submit:focus-visible{
  outline:3px solid rgba(36,92,255,.18);
  outline-offset:2px;
}

@media(max-width:560px){
  .lt-product-hero .lt-logo-mark{width:27px;height:27px}
  .lt-product-hero .lt-logotype{font-size:32px}
  .form .form-submit{width:100%}
}