/* =========================================================
   DESIGN TOKENS  — light / Apple-grade minimal, Altus blue accent
   ========================================================= */
:root{
  --bg:#FFFFFF;
  --bg-soft:#F5F7FB;
  --bg-tint:#EEF3FF;
  --bg-ink:#0A1020;

  --ink:#0A1020;
  --ink-2:#3E485E;
  --ink-3:#697287;
  --ink-faint:#9AA3B5;
  --on-dark:#EAF0FF;
  --on-dark-soft:#A7B2CC;

  --brand:#1E54E0;
  --brand-bright:#3A78FF;
  --brand-deep:#143CAE;
  --brand-tint:#5E8BFF;

  --line:rgba(10,16,32,.09);
  --line-2:rgba(10,16,32,.14);
  --line-brand:rgba(58,120,255,.30);

  --shadow-sm:0 1px 2px rgba(10,16,32,.04),0 4px 14px rgba(10,16,32,.05);
  --shadow-md:0 10px 30px rgba(10,16,32,.07),0 2px 6px rgba(10,16,32,.04);
  --shadow-lg:0 24px 60px rgba(20,40,100,.12),0 4px 14px rgba(10,16,32,.06);

  --maxw:1160px;
  --gutter:clamp(22px,5vw,64px);
  --radius:20px;

  --f-jp:"Zen Kaku Gothic New",-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Hiragino Sans",sans-serif;
  --f-lat:"Sora",-apple-system,BlinkMacSystemFont,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-pad:clamp(96px,14vh,176px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-jp);
  font-weight:400;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--brand);color:#fff}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);position:relative}

/* shared structural device: mono eyebrow */
.eyebrow{
  font-family:var(--f-mono);font-size:.72rem;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--brand);
  display:inline-flex;align-items:center;gap:.7em;
}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor;opacity:.55}
.eyebrow.on-dark{color:var(--brand-tint)}

.sec-head{max-width:48rem;margin-bottom:clamp(48px,7vh,80px)}
.sec-head h2{
  font-weight:700;font-size:clamp(1.7rem,3.8vw,2.7rem);line-height:1.42;
  letter-spacing:.005em;margin-top:22px;text-wrap:balance;color:var(--ink);
}

/* =========================================================
   NAV  — frosted glass on scroll
   ========================================================= */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s var(--ease);
  border-bottom:1px solid transparent;
}
header.scrolled{
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line);
}
.nav{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);height:64px;display:flex;align-items:center;justify-content:space-between}
.brand{font-family:var(--f-lat);font-weight:600;font-size:1.2rem;letter-spacing:-.01em;display:inline-flex;align-items:baseline;color:var(--ink)}
.brand .dot{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:clamp(18px,3vw,38px)}
.nav-links a.link{font-size:.86rem;color:var(--ink-2);font-weight:500;transition:color .25s var(--ease)}
.nav-links a.link:hover{color:var(--ink)}
.nav-cta{
  font-family:var(--f-jp);font-weight:500;font-size:.84rem;color:#fff;
  background:linear-gradient(180deg,var(--brand-bright),var(--brand));
  padding:.55em 1.25em;border-radius:100px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(30,84,224,.32)}

/* ヘッダー内のログイン導線（マーケ用ナビとは区別する運用リンク） */
.nav-div{width:1px;height:15px;background:var(--line-2);flex:none}
.nav-links a.link.nav-login{
  display:inline-flex;align-items:center;gap:.5em;
  color:var(--ink-3);font-size:.82rem;
}
.nav-links a.link.nav-login:hover{color:var(--brand)}
.nav-login .lock{width:13px;height:13px;opacity:.75;flex:none}
.nav-links a.link.nav-login:hover .lock{opacity:1}
/* モバイル用メニューボタン */
.nav-toggle{
  display:none;width:40px;height:40px;flex:none;
  align-items:center;justify-content:center;gap:5px;flex-direction:column;
  background:none;border:0;cursor:pointer;padding:0;margin-right:-8px;
}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

@media(max-width:720px){
  .nav-toggle{display:flex}
  header.menu-open{
    background:rgba(255,255,255,.72);
    backdrop-filter:saturate(180%) blur(20px);
    -webkit-backdrop-filter:saturate(180%) blur(20px);
  }
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:4px var(--gutter) 22px;
    background:rgba(255,255,255,.97);
    backdrop-filter:saturate(180%) blur(20px);
    -webkit-backdrop-filter:saturate(180%) blur(20px);
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .3s var(--ease),transform .3s var(--ease);
  }
  .nav-links.open{opacity:1;transform:none;pointer-events:auto}
  .nav-links a.link{display:block;font-size:.95rem;padding:1em 0;border-bottom:1px solid var(--line)}
  .nav-div{display:none}
  .nav-links a.link.nav-login{display:flex;font-size:.9rem}
  .nav-links a.nav-cta{margin-top:18px;text-align:center;padding:.85em 1.2em;font-size:.9rem}
}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding-top:120px;overflow:hidden;background:var(--bg)}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg svg{width:100%;height:100%;display:block}
.hero-glow{
  position:absolute;left:50%;top:-6%;transform:translateX(-50%);
  width:min(1100px,130vw);aspect-ratio:1.7/1;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse at 50% 28%,rgba(58,120,255,.16),rgba(58,120,255,.05) 42%,transparent 66%);
  filter:blur(8px);will-change:transform;
  animation:breathe 10s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.9;transform:translateX(-50%) translateY(0)}50%{opacity:1;transform:translateX(-50%) translateY(-12px)}}

.hero-inner{position:relative;z-index:3;max-width:var(--maxw);margin:0 auto;width:100%;padding:0 var(--gutter)}
.hero .eyebrow{margin-bottom:28px}
.wordmark{font-family:var(--f-lat);font-weight:600;font-size:clamp(3rem,8.4vw,6.2rem);line-height:.96;letter-spacing:-.035em;color:var(--ink)}
.wordmark .dot{color:var(--brand)}
.hero h1{font-weight:900;font-size:clamp(1.85rem,5vw,3.3rem);line-height:1.34;letter-spacing:.01em;margin-top:.5em;text-wrap:balance}
.hero h1 .accent{background:linear-gradient(180deg,var(--brand-bright),var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{margin-top:1.3em;font-size:clamp(1rem,2vw,1.2rem);color:var(--ink-2);font-weight:500;max-width:30em;line-height:1.85}
.hero .short,.page-hero .short{margin-top:2em;font-family:var(--f-mono);font-size:.78rem;letter-spacing:.04em;color:var(--ink-faint)}
.hero .short b,.page-hero .short b{color:var(--brand);font-weight:500}

/* signature: integer baseline (Int foundation) rising to Altus */
.foundation{position:relative;z-index:3;margin-top:clamp(54px,9vh,104px);max-width:var(--maxw);margin-left:auto;margin-right:auto;width:100%;padding:0 var(--gutter) 8px}
.numberline{position:relative;height:44px}
.numberline .axis{position:absolute;left:0;right:0;top:0;height:1px;background:var(--line-2)}
.numberline .ticks{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between}
.numberline .tick{width:1px;height:7px;background:var(--line-2)}
.numberline .tick.major{height:15px;background:var(--brand);opacity:.85}
.foundation-label{display:flex;justify-content:space-between;align-items:flex-start;margin-top:14px;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.12em;color:var(--ink-faint);text-transform:uppercase}
.foundation-label .l-rise{color:var(--brand)}

/* =========================================================
   SECTION SHELLS
   ========================================================= */
.sec{padding:var(--sec-pad) 0;position:relative}
.sec.alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* =========================================================
   PHILOSOPHY
   ========================================================= */
.creed{display:grid;gap:clamp(36px,5vh,56px)}
.creed-row{display:grid;grid-template-columns:200px 1fr;gap:clamp(20px,4vw,56px);align-items:start;padding-bottom:clamp(36px,5vh,56px);border-bottom:1px solid var(--line)}
.creed-row.last{border-bottom:0;padding-bottom:0}
.creed-tag{padding-top:.35em}
.creed-tag .k{font-family:var(--f-lat);font-weight:600;font-size:1.25rem;letter-spacing:-.01em;color:var(--ink)}
.creed-tag .jp{display:block;font-size:.8rem;color:var(--ink-3);margin-top:.25em;font-weight:500}
.creed-statement{font-weight:700;font-size:clamp(1.25rem,2.8vw,1.85rem);line-height:1.66;letter-spacing:.01em;text-wrap:pretty;color:var(--ink)}
.creed-statement .hl{color:var(--brand)}

.values{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.value{
  background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(26px,3vw,36px);display:flex;flex-direction:column;min-height:222px;
  box-shadow:var(--shadow-sm);
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.value:hover{border-color:var(--line-brand);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.value .vk{font-family:var(--f-lat);font-weight:600;font-size:1.05rem;letter-spacing:-.01em;display:flex;align-items:baseline;gap:.5em;color:var(--ink)}
.value .vk .idx{font-family:var(--f-mono);font-size:.68rem;color:var(--brand);font-weight:500}
.value .vtitle{font-weight:700;font-size:1.04rem;margin-top:1.3em;letter-spacing:.02em;color:var(--ink)}
.value .vbody{font-size:.92rem;color:var(--ink-2);line-height:1.85;margin-top:.65em}
@media(max-width:760px){.creed-row{grid-template-columns:1fr;gap:14px}.values{grid-template-columns:1fr}}

/* =========================================================
   NAME ORIGIN
   ========================================================= */
.origin-intro,.sec-lead{max-width:42rem;color:var(--ink-2);font-size:1.02rem;line-height:1.95;margin-bottom:clamp(44px,6vh,68px)}
.origin-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.5vw,24px)}
.origin-card{border:1px solid var(--line);border-radius:var(--radius);padding:clamp(26px,3vw,40px);background:var(--bg);box-shadow:var(--shadow-sm)}
.origin-card .big{font-family:var(--f-lat);font-weight:400;font-size:clamp(2.6rem,5vw,3.5rem);line-height:1;letter-spacing:-.02em;color:var(--ink)}
.origin-card .big .lead-char{color:var(--brand);font-weight:600}
.origin-card .reading{font-size:.76rem;color:var(--ink-faint);margin-top:.6em;font-family:var(--f-mono);letter-spacing:.06em}
.origin-meta{margin-top:1.7em;display:grid;gap:1em}
.origin-meta .row{display:grid;grid-template-columns:78px 1fr;gap:1em;align-items:start}
.origin-meta .lab{font-size:.72rem;color:var(--ink-faint);font-family:var(--f-mono);letter-spacing:.08em;padding-top:.35em}
.origin-meta .val{font-size:.95rem;color:var(--ink);line-height:1.8}
.origin-meta .val.thought{color:var(--ink-2)}
@media(max-width:760px){.origin-grid{grid-template-columns:1fr}}

.equation{margin-top:clamp(52px,8vh,88px);border-top:1px solid var(--line);padding-top:clamp(44px,6vh,68px);text-align:center}
.lead-eq{display:flex;align-items:center;justify-content:center;gap:clamp(14px,3vw,40px);flex-wrap:wrap;font-family:var(--f-lat)}
.eq-term{display:flex;flex-direction:column;align-items:center;gap:.35em}
.eq-term .glyph{font-size:clamp(2.8rem,7vw,4.8rem);font-weight:500;line-height:1;color:var(--brand)}
.eq-term .from{font-size:.72rem;color:var(--ink-faint);font-family:var(--f-mono);letter-spacing:.1em}
.eq-op{font-size:clamp(1.5rem,4vw,2.4rem);font-weight:300;color:var(--ink-faint)}
.eq-result .glyph{font-size:clamp(3.6rem,10vw,6.4rem);font-weight:600;background:linear-gradient(180deg,var(--brand-bright),var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent}
.eq-caption{margin-top:1.8em;font-size:1rem;color:var(--ink-2);line-height:1.9;max-width:34rem;margin-left:auto;margin-right:auto}
.eq-caption b{color:var(--ink);font-weight:700}

/* =========================================================
   WORK / 実績
   ========================================================= */
.approach{max-width:44rem;margin-bottom:clamp(56px,8vh,90px)}
.approach .lead{font-weight:700;font-size:clamp(1.3rem,3vw,1.95rem);line-height:1.6;letter-spacing:.01em;color:var(--ink);text-wrap:pretty;margin-top:22px}
.approach .lead .hl{color:var(--brand)}
.approach .body{margin-top:1.4em;color:var(--ink-2);font-size:1.02rem;line-height:1.95}

.cases{display:grid;gap:clamp(20px,3vw,28px)}
.case{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:clamp(24px,4vw,64px);
  align-items:center;
  background:var(--bg);border:1px solid var(--line);border-radius:calc(var(--radius) + 6px);
  padding:clamp(30px,4vw,56px);box-shadow:var(--shadow-sm);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.case:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-brand)}
.case:nth-child(even){grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr)}
.case:nth-child(even) .case-figure{order:2}

.case-figure{position:relative}
.case-num{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.16em;color:var(--brand);text-transform:uppercase}
.case-metric{margin-top:.5em;display:flex;align-items:baseline;gap:.12em;flex-wrap:wrap}
.case-metric .m-big{font-family:var(--f-lat);font-weight:700;font-size:clamp(3.2rem,7vw,5.4rem);line-height:.92;letter-spacing:-.03em;background:linear-gradient(170deg,var(--brand-bright),var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent}
.case-metric .m-unit{font-family:var(--f-lat);font-weight:600;font-size:clamp(1.1rem,2.4vw,1.6rem);color:var(--brand);letter-spacing:-.01em}
.case-metric.is-text{display:block}
.case-metric .m-big.m-text{font-family:var(--f-jp);font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.18;letter-spacing:.01em}
.case-metric-label{margin-top:.7em;font-size:.92rem;color:var(--ink-3);font-weight:500;letter-spacing:.02em}
.case-flow{margin-top:1.5em;display:inline-flex;align-items:center;gap:.7em;font-family:var(--f-mono);font-size:.82rem;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);border-radius:100px;padding:.5em 1.1em}
.case-flow .from{color:var(--ink-3)}
.case-flow .arrow{color:var(--brand)}
.case-flow .to{color:var(--ink);font-weight:500}

.case-body h3{font-weight:700;font-size:clamp(1.25rem,2.6vw,1.7rem);line-height:1.5;letter-spacing:.01em;color:var(--ink);text-wrap:pretty}
.case-body .case-lead{margin-top:.9em;color:var(--brand);font-weight:500;font-size:.98rem;line-height:1.8}
.case-body .case-text{margin-top:1.1em;color:var(--ink-2);font-size:.96rem;line-height:1.95}
.tech{margin-top:1.6em;display:flex;flex-wrap:wrap;gap:8px}
.tech .chip{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.02em;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);border-radius:8px;padding:.42em .8em}
.tech .chip .dotc{color:var(--brand);margin-right:.5em}
@media(max-width:860px){
  .case,.case:nth-child(even){grid-template-columns:1fr;gap:24px}
  .case:nth-child(even) .case-figure{order:0}
}

/* =========================================================
   BRAND STORY  — dark interlude for contrast & rhythm
   ========================================================= */
.story{background:var(--bg-ink);color:var(--on-dark);position:relative;overflow:hidden;border-top:1px solid rgba(255,255,255,.06)}
.story::before{content:"";position:absolute;left:50%;top:-10%;transform:translateX(-50%);width:min(1200px,140vw);aspect-ratio:2/1;background:radial-gradient(ellipse at 50% 0%,rgba(58,120,255,.26),transparent 60%);pointer-events:none}
.story .sec-head h2,.story .creed-statement{color:var(--on-dark)}
.story-lead{font-weight:700;font-size:clamp(1.45rem,3.4vw,2.3rem);line-height:1.6;letter-spacing:.01em;max-width:24em;text-wrap:pretty;color:var(--on-dark);position:relative;z-index:2}
.story-lead .hl{color:var(--brand-tint)}
.story-body{margin-top:clamp(38px,6vh,60px);columns:2;column-gap:clamp(40px,5vw,68px);max-width:64rem;position:relative;z-index:2}
.story-body p{break-inside:avoid;margin-bottom:1.5em;font-size:1rem;line-height:2.0;color:var(--on-dark-soft)}
.story-body p strong{color:var(--on-dark);font-weight:700}
@media(max-width:760px){.story-body{columns:1}}

/* =========================================================
   CTA
   ========================================================= */
.cta{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-tint) 100%);position:relative;overflow:hidden;text-align:center;padding:clamp(96px,15vh,176px) 0}
.cta::before{content:"";position:absolute;left:50%;bottom:-34%;transform:translateX(-50%);width:min(1000px,130vw);aspect-ratio:1.5/1;background:radial-gradient(ellipse at 50% 100%,rgba(58,120,255,.22),transparent 62%);pointer-events:none}
.cta .inner{position:relative;z-index:2}
.cta .eyebrow{justify-content:center}
.cta h2{font-weight:900;font-size:clamp(1.9rem,5vw,3.3rem);line-height:1.42;margin-top:24px;text-wrap:balance;color:var(--ink)}
.cta h2 .accent{background:linear-gradient(180deg,var(--brand-bright),var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent}
.cta .cta-sub{margin-top:1.3em;color:var(--ink-2);font-size:1.02rem;line-height:1.9;max-width:32em;margin-left:auto;margin-right:auto}
.cta-btn{display:inline-flex;align-items:center;gap:.6em;margin-top:2.2em;background:linear-gradient(180deg,var(--brand-bright),var(--brand));color:#fff;font-family:var(--f-jp);font-weight:700;font-size:1rem;padding:.95em 2.2em;border-radius:100px;box-shadow:0 14px 34px rgba(30,84,224,.32);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 20px 46px rgba(30,84,224,.42)}
.cta-btn .arrow{transition:transform .3s var(--ease)}
.cta-btn:hover .arrow{transform:translateX(4px)}

/* direct contact: plain-text address + copy button */
.contact-direct{margin-top:2.4em;display:flex;flex-direction:column;align-items:center;gap:.9em}
.contact-direct .cd-label{font-size:.84rem;color:var(--ink-3)}
.cd-row{display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center}
.cd-mail{font-family:var(--f-mono);font-size:.95rem;color:var(--brand);font-weight:500;letter-spacing:.01em;border-bottom:1px solid var(--line-brand);padding-bottom:2px;transition:color .25s var(--ease),border-color .25s var(--ease)}
.cd-mail:hover{color:var(--brand-deep);border-color:var(--brand)}
.cd-copy{display:inline-flex;align-items:center;gap:.5em;font-family:var(--f-jp);font-size:.82rem;font-weight:500;color:var(--ink-2);background:var(--bg);border:1px solid var(--line-2);border-radius:100px;padding:.45em 1em;cursor:pointer;transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease)}
.cd-copy:hover{border-color:var(--line-brand);color:var(--ink)}
.cd-copy.copied{color:var(--brand);border-color:var(--brand);background:var(--bg-tint)}
.cd-copy .ci{font-family:var(--f-mono);font-size:.9em;line-height:1}

/* =========================================================
   FOOTER
   ========================================================= */
footer{background:var(--bg-ink);color:var(--on-dark-soft);padding:46px 0;border-top:1px solid rgba(255,255,255,.06)}
.foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.foot .brand{color:var(--on-dark);font-size:1.05rem}
.foot .brand .dot{color:var(--brand-tint)}
.foot-mail{font-family:var(--f-mono);font-size:.8rem;color:var(--on-dark-soft);letter-spacing:.02em;transition:color .25s var(--ease)}
.foot-mail:hover{color:var(--on-dark)}
.foot small{font-size:.76rem;color:var(--ink-faint);font-family:var(--f-mono);letter-spacing:.05em}

/* =========================================================
   REVEAL  (Framer Motion-equivalent, restrained)
   ========================================================= */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-glow{animation:none}
  .cta-btn .arrow,.nav-cta{transition:none}
}

/* =========================================================
   ヘッダー: 下層ページ用（ヒーローがないので常時フロスト）
   ========================================================= */
header.solid{
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line);
}
.nav-links a.link.current{color:var(--brand)}

/* =========================================================
   PAGE HERO — 下層ページ（about / privacy）の見出し部
   ========================================================= */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(132px,18vh,196px) 0 clamp(52px,8vh,88px);
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg-tint) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;left:50%;top:-40%;transform:translateX(-50%);
  width:min(1000px,130vw);aspect-ratio:1.6/1;pointer-events:none;
  background:radial-gradient(ellipse at 50% 50%,rgba(58,120,255,.16),transparent 62%);
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{
  font-weight:900;font-size:clamp(1.9rem,4.6vw,3rem);line-height:1.36;
  margin-top:22px;letter-spacing:.01em;text-wrap:balance;color:var(--ink);
}
.page-hero .page-sub{margin-top:1.2em;color:var(--ink-2);font-size:1.02rem;line-height:1.9;max-width:34em}

/* パンくず */
.crumbs{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;color:var(--ink-faint)}
.crumbs a{color:var(--ink-3);transition:color .25s var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{margin:0 .6em;opacity:.5}

/* =========================================================
   SERVICE / できること
   ========================================================= */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(16px,2.4vw,22px)}
.svc{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(26px,3vw,38px);box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.svc:hover{border-color:var(--line-brand);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.svc .sidx{font-family:var(--f-mono);font-size:.68rem;font-weight:500;letter-spacing:.16em;color:var(--brand)}
.svc h3{margin-top:1.1em;font-weight:700;font-size:clamp(1.05rem,2vw,1.22rem);line-height:1.58;color:var(--ink);text-wrap:pretty}
.svc .svc-body{margin-top:.9em;font-size:.95rem;color:var(--ink-2);line-height:1.9}
.svc .ex{margin-top:1.5em;padding-top:1.2em;border-top:1px solid var(--line);display:grid;gap:.75em;list-style:none}
.svc .ex li{position:relative;padding-left:1.5em;font-size:.87rem;color:var(--ink-3);line-height:1.8}
.svc .ex li::before{content:"▸";position:absolute;left:0;top:0;color:var(--brand);font-size:.8em;line-height:2.1}
@media(max-width:760px){.svc-grid{grid-template-columns:1fr}}

/* =========================================================
   PRICING / 費用
   ========================================================= */
.pricing-lead{margin-top:20px;color:var(--ink-2);font-size:1.02rem;line-height:1.95;max-width:44rem}
.flow{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:clamp(40px,6vh,60px);
  background:var(--bg);border:1px solid var(--line);
  border-radius:calc(var(--radius) + 6px);overflow:hidden;box-shadow:var(--shadow-sm);
}
.fs{padding:clamp(28px,3vw,38px) clamp(22px,2.4vw,30px);border-right:1px solid var(--line);display:flex;flex-direction:column}
.fs:last-child{border-right:none}
.fs .num{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border:1.5px solid var(--brand);color:var(--brand);border-radius:50%;
  font-family:var(--f-lat);font-size:.9rem;font-weight:600;margin-bottom:20px;flex:none;
}
.fs h3{font-weight:700;font-size:1.03rem;line-height:1.55;color:var(--ink);text-wrap:pretty}
.fs p{margin-top:.8em;font-size:.87rem;color:var(--ink-2);line-height:1.88}
.fs .badge{
  align-self:flex-start;margin-top:auto;padding-top:1.6em;
  font-family:var(--f-mono);font-size:.68rem;letter-spacing:.04em;
  color:var(--brand);background:var(--bg-tint);padding:.35em .9em;border-radius:100px;
}
.note-line{margin-top:1.6em;font-size:.86rem;color:var(--ink-3);line-height:1.85}
@media(max-width:860px){
  .flow{grid-template-columns:1fr 1fr}
  .fs{border-bottom:1px solid var(--line)}
  .fs:nth-child(2){border-right:none}
  .fs:nth-child(3),.fs:nth-child(4){border-bottom:none}
}
@media(max-width:520px){
  .flow{grid-template-columns:1fr}
  .fs{border-right:none;border-bottom:1px solid var(--line)}
  .fs:last-child{border-bottom:none}
}

/* =========================================================
   ORIGIN SUMMARY — ホーム用の短縮版
   ========================================================= */
.origin-brief{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.5vw,24px);
  margin-top:clamp(36px,5vh,52px);
}
.origin-brief .ob{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(24px,3vw,34px);box-shadow:var(--shadow-sm);
}
.origin-brief .ob .big{font-family:var(--f-lat);font-weight:400;font-size:clamp(2rem,4vw,2.7rem);line-height:1;letter-spacing:-.02em;color:var(--ink)}
.origin-brief .ob .big .lead-char{color:var(--brand);font-weight:600}
.origin-brief .ob p{margin-top:1em;font-size:.95rem;color:var(--ink-2);line-height:1.88}
@media(max-width:760px){.origin-brief{grid-template-columns:1fr}}

/* テキストリンク（→付き） */
.arrow-link{
  display:inline-flex;align-items:center;gap:.6em;margin-top:clamp(30px,4vh,40px);
  font-weight:700;font-size:.98rem;color:var(--brand);
  border-bottom:1px solid var(--line-brand);padding-bottom:3px;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.arrow-link:hover{color:var(--brand-deep);border-color:var(--brand)}
.arrow-link .arrow{transition:transform .3s var(--ease)}
.arrow-link:hover .arrow{transform:translateX(4px)}

/* =========================================================
   COMPANY INFO — 会社概要テーブル
   ========================================================= */
.info{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--bg);box-shadow:var(--shadow-sm);
}
.info-r{display:grid;grid-template-columns:180px 1fr;border-bottom:1px solid var(--line)}
.info-r:last-child{border-bottom:none}
.info-r dt{
  padding:clamp(18px,2vw,22px) clamp(20px,2.4vw,28px);
  background:var(--bg-soft);border-right:1px solid var(--line);
  font-size:.84rem;font-weight:700;color:var(--ink-3);letter-spacing:.04em;
}
.info-r dd{padding:clamp(18px,2vw,22px) clamp(20px,2.4vw,28px);font-size:.96rem;color:var(--ink);line-height:1.85}
@media(max-width:640px){
  .info-r{grid-template-columns:1fr}
  .info-r dt{border-right:none;border-bottom:1px solid var(--line)}
}

/* 引用ブロック（about の理念サマリ） */
.creed-brief{display:grid;gap:14px;margin-top:clamp(30px,4vh,42px)}
.creed-brief .cb{
  display:grid;grid-template-columns:150px 1fr;gap:clamp(16px,3vw,32px);align-items:baseline;
  background:var(--bg);border:1px solid var(--line);border-left:2px solid var(--brand);
  border-radius:0 var(--radius) var(--radius) 0;padding:clamp(20px,2.4vw,28px) clamp(22px,2.8vw,32px);
}
.creed-brief .cb .k{font-family:var(--f-lat);font-weight:600;font-size:1.05rem;color:var(--ink)}
.creed-brief .cb .k .jp{display:block;font-family:var(--f-jp);font-size:.76rem;color:var(--ink-3);margin-top:.3em;font-weight:500}
.creed-brief .cb p{font-size:1rem;font-weight:500;line-height:1.8;color:var(--ink-2)}
@media(max-width:640px){.creed-brief .cb{grid-template-columns:1fr;gap:10px}}

/* =========================================================
   LEGAL / プライバシーポリシー本文
   ========================================================= */
.legal{max-width:52rem;margin:0 auto}
.legal .lead{color:var(--ink-2);font-size:1rem;line-height:1.95;padding-bottom:clamp(30px,4vh,42px);border-bottom:1px solid var(--line)}
.legal h2{
  display:flex;align-items:baseline;gap:.9em;
  margin-top:clamp(48px,6vh,68px);
  font-weight:700;font-size:clamp(1.1rem,2.2vw,1.32rem);line-height:1.6;color:var(--ink);
}
.legal h2 .n{font-family:var(--f-mono);font-size:.76rem;font-weight:500;color:var(--brand);letter-spacing:.08em;flex:none}
.legal p{margin-top:1.1em;font-size:.96rem;color:var(--ink-2);line-height:2}
.legal ul{margin-top:1.1em;display:grid;gap:.8em;list-style:none}
.legal ul li{position:relative;padding-left:1.6em;font-size:.94rem;color:var(--ink-2);line-height:1.9}
.legal ul li::before{content:"";position:absolute;left:.4em;top:.85em;width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.7}
.legal a{color:var(--brand);border-bottom:1px solid var(--line-brand);transition:color .25s var(--ease)}
.legal a:hover{color:var(--brand-deep);border-color:var(--brand)}
.legal .todo{
  display:inline-block;background:#FFF7E6;color:#8A5A00;border:1px solid #F0DDA8;
  border-radius:8px;padding:.3em .8em;font-size:.88rem;line-height:1.75;
}
.legal .rev{
  margin-top:clamp(52px,7vh,76px);padding-top:clamp(24px,3vh,32px);border-top:1px solid var(--line);
  font-family:var(--f-mono);font-size:.78rem;color:var(--ink-faint);letter-spacing:.05em;
}

/* =========================================================
   FOOTER — リンク列を追加
   ========================================================= */
.foot{align-items:flex-start}
.foot-nav{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:12px}
.foot-nav a{font-size:.8rem;color:var(--on-dark-soft);transition:color .25s var(--ease)}
.foot-nav a:hover{color:var(--on-dark)}
.foot-right{display:flex;flex-direction:column;align-items:flex-end;gap:10px;text-align:right}
.foot-client{
  font-size:.74rem;color:var(--ink-faint);
  border:1px solid rgba(255,255,255,.12);border-radius:100px;padding:.4em 1em;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.foot-client:hover{color:var(--on-dark);border-color:rgba(255,255,255,.28)}
@media(max-width:640px){.foot-right{align-items:flex-start;text-align:left}}

/* =========================================================
   LOGIN GATE — /login.html の入口カード
   ========================================================= */
.gate-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.5vw,24px)}
.gate-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--bg);border:1px solid var(--line);border-radius:calc(var(--radius) + 4px);
  padding:clamp(30px,3.4vw,44px);box-shadow:var(--shadow-sm);
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.gate-card:hover{border-color:var(--line-brand);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.gate-idx{
  position:absolute;top:clamp(24px,3vw,32px);right:clamp(24px,3vw,32px);
  font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;color:var(--ink-faint);
}
.gate-ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-tint);color:var(--brand);margin-bottom:22px;flex:none;
}
.gate-ico svg{width:22px;height:22px}
.gate-card h2{font-weight:700;font-size:clamp(1.15rem,2.2vw,1.4rem);line-height:1.5;color:var(--ink)}
.gate-card > p{margin-top:.9em;font-size:.95rem;color:var(--ink-2);line-height:1.9}
.gate-meta{
  margin-top:1.6em;padding-top:1.3em;border-top:1px solid var(--line);
  display:grid;gap:.7em;list-style:none;
}
.gate-meta li{display:grid;grid-template-columns:64px 1fr;gap:1em;align-items:baseline}
.gate-meta b{
  font-family:var(--f-mono);font-size:.68rem;font-weight:500;letter-spacing:.06em;
  color:var(--ink-faint);
}
.gate-meta span{font-size:.86rem;color:var(--ink-2);line-height:1.75}
.gate-go{
  margin-top:auto;padding-top:1.8em;display:inline-flex;align-items:center;gap:.5em;
  font-weight:700;font-size:.95rem;color:var(--brand);
}
.gate-go .arrow{transition:transform .3s var(--ease)}
.gate-card:hover .gate-go .arrow{transform:translateX(4px)}
@media(max-width:760px){.gate-grid{grid-template-columns:1fr}}