/* ============================================================
   Protagonist — Front Page (page-specific)
   フロントページ固有：ローダー / hero / statement / flywheel /
   services（svc-vis）/ achievements / approach / philosophy の
   アパーチャ / about / closing / agent-pop。
   共有トークン・コンポーネントは design-system.css を参照。
   ============================================================ */

/* loader */
.loader{position:fixed;inset:0;z-index:9000;background:var(--paper);display:grid;place-items:center;transition:opacity .8s var(--e1),visibility .8s}
.loader.done{opacity:0;visibility:hidden}
.loader .lmark{font-family:var(--disp);font-weight:600;font-size:clamp(1.4rem,4vw,2.2rem);letter-spacing:-.02em;overflow:hidden}
.loader .lmark span{display:inline-block;transform:translateY(110%);animation:lrise .9s var(--e1) .1s forwards}
.loader .lbar{margin-top:1.1rem;width:min(240px,52vw);height:1px;background:var(--hair);position:relative;overflow:hidden}
.loader .lbar::after{content:"";position:absolute;inset:0;background:var(--ink);transform-origin:left;transform:scaleX(0);animation:lfill 1.1s var(--e2) .2s forwards}
@keyframes lrise{to{transform:none}}
@keyframes lfill{to{transform:scaleX(1)}}

/* aperture float keyframes */
@keyframes cfloat{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-22px) rotate(7deg)}}
@keyframes afloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

/* HERO */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding-top:84px;overflow:hidden}
.hero-chrome{position:absolute;z-index:0;right:-7%;top:42%;transform:translateY(-50%);width:min(46vh,440px);aspect-ratio:1;pointer-events:none;will-change:transform;opacity:1}
.hero-chrome svg{width:100%;height:100%;animation:afloat 11s ease-in-out infinite}
@media(max-width:920px){.hero-chrome{right:-16%;top:34%;width:min(40vh,360px);opacity:.9}}
@media(max-width:600px){.hero-chrome{right:-30%;top:11%;width:56vw;opacity:.8}}

.hero-inner{position:relative;z-index:2;width:100%;padding-block:clamp(40px,8vh,90px)}
.hero-eyebrow{display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;margin-bottom:clamp(28px,5vh,52px)}
.hero-eyebrow .x{font-family:var(--disp);color:var(--ink)}
.hero h1{font-family:var(--jp);font-weight:500;font-size:clamp(2.5rem,7.4vw,6.6rem);line-height:1.04;letter-spacing:-.02em;margin-bottom:clamp(24px,4vh,40px)}
.hero h1 .row{display:block;overflow:hidden;padding:.04em 0}
.hero h1 .row:last-child{padding-bottom:.2em}
.hero h1 .row i{display:block;font-style:normal}
.js .hero h1 .row i{transform:translateY(105%)}
.hero h1 .thin{font-weight:300;color:var(--ink-2)}
.hero h1 .seg{display:inline}
@media(max-width:620px){.hero h1 .seg{display:block}}
.hero h1 .accent{position:relative;display:inline-block}
.hero h1 .accent::after{content:"";position:absolute;left:0;right:0;bottom:-.06em;height:3px;background:var(--ink);transform:scaleX(0);transform-origin:left}
.hero h1 .accent.draw::after{transform:scaleX(1);transition:transform 1s var(--e1) 1s}
.hero-meta{display:grid;gap:clamp(22px,3vh,30px);max-width:540px}
.js .hero-en,.js .hero-sub,.js .hero-cta{opacity:0;transform:translateY(18px)}
.hero-en{font-family:var(--disp);font-weight:400;font-size:1.05rem;letter-spacing:.01em;color:var(--ink);display:flex;align-items:center;gap:.8rem}
.hero-en::before{content:"";width:24px;height:1px;background:var(--ink)}
.hero-sub{font-size:.98rem;color:var(--graphite);max-width:42ch;line-height:1.85}
.hero-cta{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-foot{position:absolute;left:var(--pad);right:var(--pad);bottom:clamp(20px,4vh,38px);z-index:2;display:flex;justify-content:space-between;align-items:flex-end;max-width:var(--maxw);margin-inline:auto}
.scrollcue{display:flex;align-items:center;gap:.8rem}
.scrollcue .ln{width:1px;height:40px;background:var(--hair);position:relative;overflow:hidden}
.scrollcue .ln::after{content:"";position:absolute;left:0;top:0;width:100%;height:40%;background:var(--ink);animation:scrolldash 2.4s var(--e1) infinite}
@keyframes scrolldash{0%{transform:translateY(-100%)}100%{transform:translateY(250%)}}
@media(max-width:600px){.hero-foot{display:none}}

/* statement */
.statement{padding-block:clamp(80px,11vw,150px);border-block:1px solid var(--line)}
.statement .big{font-family:var(--jp);font-weight:500;font-size:clamp(1.4rem,5vw,4.4rem);line-height:1.32;letter-spacing:-.015em;max-width:15em}
.statement .big b{font-weight:500;position:relative;white-space:nowrap}
.statement .big .q{color:var(--graphite);font-weight:300}
.statement .meta{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;margin-top:clamp(36px,5vw,56px);padding-top:1.4rem;border-top:1px solid var(--line)}

/* services（テキスト中心の単一カラム。ビジュアル枠は廃止） */
.svc{display:grid;gap:0;border-top:1px solid var(--hair);max-width:880px}
.svc-item{padding:clamp(34px,4.8vw,60px) 0;border-bottom:1px solid var(--line)}
.svc-body{max-width:none}
.svc-body .top{display:flex;align-items:center;gap:1.1rem;margin-bottom:1.5rem}
.svc-body .num{font-family:var(--disp);font-weight:300;font-size:clamp(2.4rem,4vw,3.4rem);line-height:1;letter-spacing:-.02em}
.svc-body .top .labels{display:grid;gap:.2rem}
.svc-body .role{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--graphite)}
.svc-body .brand{font-family:var(--disp);font-weight:600;font-size:1.05rem;letter-spacing:-.01em}
.svc-body h3{font-family:var(--jp);font-weight:500;font-size:clamp(1.4rem,3.2vw,2.4rem);line-height:1.3;letter-spacing:-.01em;margin-bottom:1.1rem}
.svc-body p{color:var(--graphite);font-size:.97rem;line-height:1.8;max-width:64ch;margin-bottom:1.6rem}

/* flywheel / model — continuous, non-overlapping */
.flywheel{display:grid;gap:clamp(34px,5vw,68px);align-items:center}
@media(min-width:900px){.flywheel{grid-template-columns:1.05fr .95fr}}
.fw-diagram{display:grid;place-items:center}
.fw-svg{width:100%;max-width:330px;height:auto}
@media(min-width:760px){.fw-svg{max-width:450px}}
.fw-stages{display:grid;gap:0}
.fw-stage{display:grid;grid-template-columns:auto 1fr;gap:1.2rem 1.3rem;padding:clamp(18px,2.2vw,26px) 0;border-top:1px solid var(--line);align-items:start}
.fw-stage:first-child{border-top:none;padding-top:0}
.fw-stage .fn{font-family:var(--disp);font-weight:200;font-size:clamp(1.9rem,3vw,2.6rem);letter-spacing:-.02em;color:var(--graphite);line-height:1}
.fw-stage .fbody{display:grid;gap:.5rem}
.fw-stage .frole{font-family:var(--jp);font-size:.74rem;letter-spacing:.06em;color:var(--muted)}
.fw-stage h3{font-family:var(--jp);font-weight:700;font-size:1.18rem;letter-spacing:.01em}
.fw-stage p{font-size:.92rem;color:var(--graphite)}
/* node highlight cycles via JS */
.fw-node .fw-ring{opacity:0;transition:opacity .6s var(--e1)}
.fw-node.on .fw-ring{opacity:1}
.fw-node .fw-dot{fill:var(--muted);transition:fill .6s var(--e1),transform .6s var(--e1);transform-box:fill-box;transform-origin:center}
.fw-node.on .fw-dot{fill:var(--ink);transform:scale(1.45)}
.fw-node .fw-lab{fill:var(--graphite);transition:fill .6s var(--e1)}
.fw-node.on .fw-lab{fill:var(--ink)}

/* achievements */
.ach{display:grid;gap:0;border-top:1px solid var(--ink)}
.ach-row{display:grid;grid-template-columns:auto 1fr auto;gap:1.5rem 2rem;align-items:baseline;padding:clamp(26px,3.4vw,44px) 0;border-bottom:1px solid var(--line)}
@media(max-width:680px){.ach-row{grid-template-columns:1fr;gap:.4rem;align-items:start}}
.ach-row .rn{font-family:var(--mono);font-size:.7rem;color:var(--muted);align-self:start;padding-top:1.4rem}
@media(max-width:680px){.ach-row .rn{padding-top:0}}
.ach-row .lab{font-family:var(--jp);font-weight:500;font-size:1.05rem}
.ach-row .lab .en{display:block;font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--graphite);margin-top:.3rem}
.ach-row .fig{font-family:var(--disp);font-weight:200;font-size:clamp(3.2rem,8vw,6rem);line-height:.9;letter-spacing:-.03em;justify-self:end;text-align:right}
@media(max-width:680px){.ach-row .fig{justify-self:start;text-align:left;margin-top:.4rem}}
.ach-row .fig .suf{font-weight:300;font-size:.3em;vertical-align:.4em;letter-spacing:0;margin-left:.1em}

/* approach（カードグリッド .appr は design-system.css の共通コンポーネントへ移管） */

/* philosophy aperture（ダークバンドのフロント装飾） */
.philo .pchrome{position:absolute;right:-6%;top:50%;transform:translateY(-50%);width:min(60vh,560px);aspect-ratio:1;opacity:.4;pointer-events:none}
.philo .pchrome svg{animation:afloat 13s ease-in-out infinite}
@media(max-width:760px){.philo .pchrome{opacity:.3;right:-30%}}

/* about（定義リストは design-system.css の共通コンポーネントへ移管） */

/* closing */
.closing{position:relative;padding-block:clamp(100px,15vw,200px);text-align:center;overflow:hidden}
.closing .cchrome{position:absolute;left:auto;right:-8%;top:50%;transform:translateY(-50%);width:min(52vh,440px);aspect-ratio:1;opacity:.26;pointer-events:none;z-index:0}
@media(max-width:600px){.closing .cchrome{width:min(36vh,250px);opacity:.3;right:-26%}.philo .pchrome{opacity:.22}}
.closing .cchrome svg{animation:afloat 12s ease-in-out infinite}
.closing .shell{position:relative;z-index:2}
.closing h2{font-family:var(--disp);font-weight:300;font-size:clamp(2.35rem,8.4vw,7rem);line-height:1;letter-spacing:-.03em;margin:1.4rem 0}
.closing h2 b{font-weight:600}
.closing .csub{color:var(--graphite);max-width:44ch;margin:0 auto 2.6rem;font-size:1rem}
.closing .cta{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}

/* agent service popup */
.agent-pop{position:fixed;right:clamp(16px,2vw,30px);bottom:clamp(16px,2vw,30px);z-index:200;width:min(338px,calc(100vw - 32px));background:var(--surface);border:1px solid var(--line);box-shadow:0 22px 60px -18px rgba(15,16,20,.28);padding:1.5rem 1.5rem 1.55rem;transform:translateY(24px) scale(.985);opacity:0;visibility:hidden;transition:transform .6s var(--e1),opacity .55s var(--e1),visibility .6s}
.agent-pop.show{transform:none;opacity:1;visibility:visible}
.agent-pop .ap-close{position:absolute;top:.6rem;right:.6rem;width:30px;height:30px;border:none;background:transparent;cursor:pointer;color:var(--muted);font-size:.78rem;line-height:1;display:grid;place-items:center;border-radius:50%;transition:background .3s,color .3s}
.agent-pop .ap-close:hover{background:var(--paper-2);color:var(--ink)}
.agent-pop .ap-label{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--graphite);margin-bottom:.95rem}
.agent-pop .ap-label::before{content:"";width:18px;height:1px;background:var(--graphite)}
.agent-pop h4{font-family:var(--jp);font-weight:500;font-size:1.18rem;line-height:1.42;letter-spacing:-.01em;margin-bottom:.55rem}
.agent-pop p{font-size:.84rem;color:var(--graphite);line-height:1.7;margin-bottom:1.25rem}
.agent-pop .ap-cta{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;width:100%;font-family:var(--disp);font-weight:500;font-size:.88rem;padding:.9rem 1rem;background:var(--ink);color:var(--paper);position:relative;overflow:hidden;transition:opacity .3s}
.agent-pop .ap-cta svg{width:14px;height:14px}
.agent-pop .ap-cta svg path{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.agent-pop .ap-cta:hover{opacity:.88}
.agent-pop .ap-sub{display:block;text-align:center;margin-top:.75rem;font-family:var(--mono);font-size:.6rem;letter-spacing:.05em;color:var(--muted)}
.agent-pop .ap-sub a{color:var(--graphite);text-decoration:underline;text-underline-offset:2px}
@media(max-width:600px){.agent-pop{right:12px;left:12px;bottom:12px;width:auto;padding:1.3rem 1.3rem 1.4rem}}

/* reduced-motion（フロント固有の静止可視化） */
@media(prefers-reduced-motion:reduce){
  .hero h1 .row i,.hero-en,.hero-sub,.hero-cta{opacity:1!important;transform:none!important}
  .loader{display:none!important}
  .hero h1 .accent::after{transform:scaleX(1)!important}
}