:root{
  --washi:#faf8f4; --washi-2:#f3efe7; --ink:#1a1a1a; --ink-2:#4a4a48; --ink-3:#8a8880;
  --shu:#c73e2b; --line:#e4dfd4;
  --serif:"Hiragino Mincho ProN","Yu Mincho","YuMincho","Noto Serif JP",Georgia,serif;
  --sans:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--washi);color:var(--ink);font-family:var(--serif);line-height:1.9;
  font-feature-settings:"palt";-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--shu);color:#fff}
a{color:inherit}
.wrap{max-width:960px;margin:0 auto;padding:0 24px}

/* nav */
nav{position:fixed;top:0;left:0;right:0;z-index:10;display:flex;justify-content:space-between;align-items:center;
  padding:18px 28px;background:linear-gradient(var(--washi) 60%,transparent)}
.brand{font-size:1.05rem;letter-spacing:.35em;font-weight:600}
.brand small{letter-spacing:.12em;color:var(--ink-3);font-size:.7rem;margin-left:.6em}
.nav-r{display:flex;gap:18px;align-items:center;font-family:var(--sans);font-size:.78rem}
.nav-r a{text-decoration:none;color:var(--ink-2)}
.nav-r a:hover{color:var(--shu)}
#langBtn{border:1px solid var(--line);background:transparent;border-radius:99px;padding:4px 14px;
  font-family:var(--sans);font-size:.75rem;cursor:pointer;color:var(--ink-2);letter-spacing:.08em}
#langBtn:hover{border-color:var(--shu);color:var(--shu)}

/* hero */
header{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center}
#sumi{position:absolute;inset:0;width:100%;height:100%}
.hero{position:relative;text-align:center;padding:0 24px}
.hero .vert{writing-mode:vertical-rl;font-size:clamp(5rem,17vw,11rem);letter-spacing:.08em;
  margin:0 auto;font-weight:500;animation:fadein 2.4s ease both}
.hero .tagline{margin-top:34px;font-size:clamp(1.05rem,2.6vw,1.5rem);letter-spacing:.22em;animation:fadein 2.4s .5s ease both}
.hero .sub{margin-top:14px;font-family:var(--sans);font-size:.85rem;color:var(--ink-3);letter-spacing:.18em;animation:fadein 2.4s .9s ease both}
.hero .cta-row{margin-top:44px;animation:fadein 2.4s 1.3s ease both}
@keyframes fadein{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.btn{display:inline-block;font-family:var(--sans);font-size:.88rem;letter-spacing:.12em;text-decoration:none;
  padding:13px 34px;border-radius:2px;transition:.25s}
.btn-primary{background:var(--ink);color:var(--washi)}
.btn-primary:hover{background:var(--shu)}
.btn-ghost{border:1px solid var(--line);color:var(--ink-2);margin-left:10px}
.btn-ghost:hover{border-color:var(--shu);color:var(--shu)}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:var(--ink-3);
  font-family:var(--sans);font-size:.7rem;letter-spacing:.3em;animation:bob 2.6s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* sections */
section{padding:110px 0}
.sec-alt{background:var(--washi-2)}
.sec-label{font-family:var(--sans);font-size:.72rem;letter-spacing:.4em;color:var(--shu);margin-bottom:26px}
h2{font-size:clamp(1.5rem,3.6vw,2.2rem);letter-spacing:.1em;font-weight:600;margin-bottom:30px;line-height:1.6}
.manifesto p{font-size:clamp(1rem,2.2vw,1.18rem);letter-spacing:.06em;color:var(--ink-2);margin-bottom:1.6em;max-width:640px}
.manifesto strong{color:var(--ink);font-weight:600}

/* pillars */
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:16px}
.pillar{border:1px solid var(--line);background:#fffdf9;padding:34px 28px;position:relative;transition:.3s}
.pillar:hover{border-color:var(--ink-3);transform:translateY(-3px)}
.pillar .p-kanji{font-size:2.4rem;line-height:1;margin-bottom:18px}
.pillar h3{font-family:var(--sans);font-size:1rem;letter-spacing:.1em;margin-bottom:4px}
.pillar .p-status{position:absolute;top:20px;right:20px;font-family:var(--sans);font-size:.62rem;
  letter-spacing:.14em;padding:3px 10px;border-radius:99px;border:1px solid var(--line);color:var(--ink-3)}
.pillar .p-status.live{border-color:var(--shu);color:var(--shu)}
.pillar p{font-family:var(--sans);font-size:.84rem;color:var(--ink-2);line-height:1.85;margin-top:12px}

/* bench */
.bench-note{font-family:var(--sans);font-size:.8rem;color:var(--ink-3);margin-bottom:8px;max-width:620px}
.bench-updated{font-family:var(--sans);font-size:.72rem;color:var(--ink-3);margin-bottom:26px;letter-spacing:.06em}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;font-family:var(--sans)}
.chip{font-size:.75rem;letter-spacing:.06em;padding:6px 15px;border-radius:99px;border:1px solid var(--line);
  cursor:pointer;background:transparent;color:var(--ink-2);transition:.2s}
.chip.on,.chip:hover{border-color:var(--ink);color:var(--ink);background:#fffdf9}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}
.card{border:1px solid var(--line);background:#fffdf9;padding:24px;cursor:pointer;transition:.25s;position:relative}
.card:hover{border-color:var(--ink-3)}
.card .c-cat{font-family:var(--sans);font-size:.65rem;letter-spacing:.2em;color:var(--shu);margin-bottom:12px}
.card .c-q{font-size:.95rem;line-height:1.85}
.card .c-a{display:none;margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-family:var(--sans);font-size:.82rem;color:var(--ink-2);line-height:1.85}
.card .c-why{display:none;margin-top:10px;font-family:var(--sans);font-size:.76rem;color:var(--ink-3);line-height:1.8}
.card.open .c-a,.card.open .c-why{display:block}
.card .c-hint{position:absolute;bottom:12px;right:16px;font-family:var(--sans);font-size:.65rem;color:var(--ink-3)}
.card.open .c-hint{display:none}

/* principles */
.principles{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:34px;margin-top:10px}
.pr h3{font-size:1.05rem;letter-spacing:.1em;margin-bottom:10px}
.pr h3::before{content:"— ";color:var(--shu)}
.pr p{font-family:var(--sans);font-size:.84rem;color:var(--ink-2);line-height:1.9}

/* waitlist */
#waitlist{background:var(--ink);color:var(--washi)}
#waitlist .sec-label{color:#e88}
#waitlist p.lead{font-family:var(--sans);font-size:.9rem;color:#c8c5bd;max-width:560px;margin-bottom:36px;line-height:2}
form{max-width:560px;display:grid;gap:14px;font-family:var(--sans)}
input,select,textarea{width:100%;padding:13px 15px;background:#242422;border:1px solid #3a3a37;color:var(--washi);
  font-size:.9rem;font-family:var(--sans);border-radius:2px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--shu)}
textarea{min-height:90px;resize:vertical}
label{font-size:.72rem;letter-spacing:.14em;color:#a7a49c;display:block;margin-bottom:5px}
#sendBtn{background:var(--shu);color:#fff;border:none;padding:15px;font-size:.9rem;letter-spacing:.2em;cursor:pointer;border-radius:2px;transition:.25s}
#sendBtn:hover{filter:brightness(1.12)}
#sendBtn:disabled{opacity:.5;cursor:wait}
#formErr{display:none;color:#e88;font-size:.8rem}
#formErr.show{display:block}
#done{display:none;font-size:1.05rem;letter-spacing:.1em;line-height:2.2}
#done.show{display:block}
.privacy-note{font-size:.7rem;color:#a7a49c;letter-spacing:.06em;line-height:1.8}

/* footer */
footer{padding:60px 0 80px;border-top:1px solid var(--line)}
footer .f-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;align-items:baseline}
footer .f-brand{letter-spacing:.3em;font-size:.95rem}
footer .f-sub{margin-top:8px}
footer p{font-family:var(--sans);font-size:.72rem;color:var(--ink-3);letter-spacing:.08em}
footer a{color:var(--ink-3)}
@media(max-width:640px){section{padding:80px 0}.nav-r a.nav-link{display:none}}