:root{
  --navy:#0B1D33;
  --navy-deep:#04182F;
  --green:#00A7A0;
  --white:#FFFFFF;
  --near-white:#F7F9FB;
  --gray-light:#F2F4F7;
  --gray:#E6E8EC;
  --gray-dark:#687280;
  --charcoal:#2A2E35;
  --text:#33404D;
  --blue:#3FA7FF;
  --purple:#6C5CE7;
  --peach:#FF808A;
  --cyan:#BEEFEA;
  --mist:#EAF3F5;
  --container:1360px;
  --font:'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', sans-serif;
  --ease:cubic-bezier(0.16, 1, 0.3, 1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--white);
  color:var(--navy);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--green);outline-offset:3px}

.label{
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--green);margin:0 0 20px;
}
.lead{color:var(--text);line-height:1.95;font-size:16px;max-width:640px}
.lead + .lead{margin-top:1.3em}
.kicker-row{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap}

[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .5s var(--ease), transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  [data-reveal]{opacity:1;transform:none;transition:none}
}

/* Header */
header{
  position:sticky;top:0;left:0;right:0;z-index:100;
  background:#fff;
  border-bottom:1px solid var(--gray);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:20px;padding-bottom:20px}
.brand img{height:32px;width:auto;display:block}
.navlinks{display:flex;align-items:center;gap:26px}
.navlinks a{
  font-size:14px;font-weight:500;color:var(--text);position:relative;padding:10px 0;
}
.navlinks a.is-current{color:var(--navy);font-weight:700}
.navlinks a:not(.btn)::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--green);
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.navlinks a.is-current::after{transform:scaleX(1)}
.navlinks a:not(.btn):hover::after{transform:scaleX(1)}
.navlinks a:not(.btn):hover{color:var(--navy)}
.navlinks .btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--navy);color:#fff;padding:12px 22px;border-radius:100px;font-weight:600;font-size:14px;
  transition:background .25s var(--ease), transform .25s var(--ease);
}
.navlinks .btn:hover{background:var(--navy-deep);transform:translateX(2px)}

.menuBtn{
  display:none;border:0;background:transparent;padding:10px;cursor:pointer;
  flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;
}
.menuBtn span{display:block;height:2px;width:24px;background:var(--navy);transition:all .25s var(--ease)}
header.open .menuBtn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
header.open .menuBtn span:nth-child(2){opacity:0}
header.open .menuBtn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobileNav{
  display:none;position:fixed;inset:0;top:0;background:var(--white);z-index:99;
  padding:112px 32px 40px;opacity:0;transition:opacity .3s var(--ease);overflow-y:auto;
}
header.open + .mobileNav{display:block;opacity:1}
.mobileNav a{
  display:block;padding:18px 4px;border-bottom:1px solid var(--gray);
  font-size:21px;font-weight:600;color:var(--navy);
}
.mobileNav a.btn{color:var(--green)}
.mobileNav a.is-current{color:var(--green)}

/* Sections */
.section{padding:clamp(64px,10vw,128px) 0}
.section-alt{background:var(--near-white)}

/* Page intro (used by detail pages) */
.page-hero{position:relative;overflow:hidden;background:var(--near-white)}
.page-hero-photo{position:relative;min-height:320px}
.page-hero-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-hero-inner{padding:clamp(48px,7vw,88px) 0}
.breadcrumb{font-size:12.5px;color:var(--gray-dark);margin:0 0 22px;display:flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--gray-dark)}
.breadcrumb a:hover{color:var(--navy)}
.page-hero h1{
  font-weight:700;font-size:clamp(34px,5vw,64px);line-height:1.35;letter-spacing:-.01em;
  margin:0 0 24px;color:var(--navy);
}

/* Shared components */
.tag{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--navy);background:var(--gray-light);padding:6px 14px;border-radius:100px;
}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;background:var(--navy);color:#fff;
  padding:15px 28px;border-radius:100px;font-weight:600;font-size:14.5px;border:0;cursor:pointer;
  transition:background .25s var(--ease), transform .25s var(--ease);
}
.btn-primary:hover{background:var(--navy-deep);transform:translateX(3px)}
.btn-secondary{
  display:inline-flex;align-items:center;gap:10px;background:transparent;color:var(--navy);
  padding:14px 26px;border-radius:100px;font-weight:600;font-size:14.5px;border:1px solid var(--gray-dark);
  transition:border-color .25s var(--ease), background .25s var(--ease);
}
.btn-secondary:hover{border-color:var(--navy);background:var(--gray-light)}

/* Secondary CTA (compact, card/section footer navigation) */
.card-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:100px;border:1px solid var(--gray-dark);
  color:var(--navy);font-size:13px;font-weight:600;
  transition:border-color .25s var(--ease),background .25s var(--ease),gap .25s var(--ease);
}
.card-cta:hover{border-color:var(--navy);background:var(--gray-light);gap:11px}
.card-cta--light{border-color:rgba(255,255,255,.5);color:#fff}
.card-cta--light:hover{border-color:#fff;background:rgba(255,255,255,.14)}

/* Directional language: Chevron for conceptual transition (→), separate from Arrow Icons used on CTAs */
.arw{
  display:inline-block;flex:0 0 auto;
  width:11px;height:11px;overflow:hidden;
  background-color:#AFB4BC;
  -webkit-mask-image:url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M9%206l6%206-6%206'%20fill='none'%20stroke='black'%20stroke-width='3'%20stroke-linecap='round'%20stroke-linejoin='round'/%3E%3C/svg%3E");
  mask-image:url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%3E%3Cpath%20d='M9%206l6%206-6%206'%20fill='none'%20stroke='black'%20stroke-width='3'%20stroke-linecap='round'%20stroke-linejoin='round'/%3E%3C/svg%3E");
  -webkit-mask-size:contain;mask-size:contain;
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  -webkit-mask-position:center;mask-position:center;
  font-size:0;line-height:0;color:transparent;
}
.arw-loop{display:inline-block;flex:0 0 auto;font-size:13px;color:var(--gray-dark)}

/* Simple hero (no photography) */
.simple-hero{background:var(--near-white);padding:clamp(64px,10vw,128px) 0 clamp(48px,7vw,80px)}
.simple-hero h1{
  font-weight:700;font-size:clamp(34px,5vw,60px);line-height:1.35;letter-spacing:-.01em;
  margin:0 0 24px;color:var(--navy);
}

/* Detail-page components */
.callout{
  background:var(--navy);color:#fff;border-radius:20px;padding:clamp(36px,5vw,64px);
  max-width:820px;margin:0 auto;text-align:center;
}
.callout p.big{font-size:clamp(20px,2.6vw,30px);font-weight:700;line-height:1.7;margin:0 0 20px}
.callout p.small{font-size:14.5px;color:rgba(255,255,255,.68);line-height:1.9;margin:0 auto;max-width:560px}

.cr-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--gray);border:1px solid var(--gray)}
.cr-col{background:var(--white);padding:clamp(32px,4vw,48px)}
.cr-col .k{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin:0 0 16px}
.cr-col.challenge .k{color:var(--gray-dark)}
.cr-col.reframe .k{color:var(--green)}
.cr-col p.q{font-size:clamp(18px,2vw,22px);font-weight:700;color:var(--navy);line-height:1.7;margin:0}

.process-strip{display:grid;grid-template-columns:repeat(var(--steps,4),1fr);position:relative;padding-top:34px}
.process-strip::before{content:"";position:absolute;top:16px;left:0;right:0;height:2px;background:var(--gray-dark);opacity:.35}
.process-step{padding:0 18px 0 0;position:relative}
.process-step::before{
  content:"";position:absolute;top:-24px;left:0;width:14px;height:14px;box-sizing:border-box;
  border-radius:50%;background:var(--green);border:3px solid #fff;
}
.process-step .num{font-size:11px;color:var(--gray-dark);letter-spacing:.08em;margin:0 0 12px}
.process-step .ti{font-size:16px;font-weight:700;color:var(--navy);margin:0 0 8px}
.process-step .de{font-size:12.5px;color:var(--text);line-height:1.8;margin:0}

/* Optional caption pairing with .process-strip: a light note that the last
   step feeds back into an earlier one. Keep to one short line; Green is
   reserved for the "improve/continue" word only, not the whole sentence. */
.process-loop{text-align:center;font-size:13px;color:var(--gray-dark);margin:28px 0 0}
.process-loop-accent{color:var(--green);font-weight:700}

.support-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}
.support-list li{font-size:14px;color:var(--text);padding-left:18px;position:relative;line-height:1.8}
.support-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:1px;background:var(--green)}

.related-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--gray);border:1px solid var(--gray)}
.related-nav a{display:block;background:var(--white);padding:28px;transition:background .25s var(--ease)}
.related-nav a:hover{background:var(--near-white)}
.related-nav .en{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--gray-dark);font-weight:700;margin:0 0 8px}
.related-nav .jp{font-size:15px;font-weight:700;color:var(--navy);margin:0}

.principle-quote{text-align:center;max-width:640px;margin:0 auto}
.principle-quote p.big{font-size:clamp(20px,2.6vw,28px);font-weight:700;color:var(--navy);line-height:1.7;margin:0}

@media (max-width:900px){
  .cr-grid{grid-template-columns:1fr}
  .process-strip{grid-template-columns:1fr;gap:32px;padding-top:0}
  .process-strip::before{display:none}
  .process-step{padding-left:28px;border-left:2px solid var(--gray-dark)}
  .process-step::before{top:0;left:-8px}
  .support-list{grid-template-columns:1fr}
  .related-nav{grid-template-columns:1fr}
}

/* Forms */
.formGrid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--text);margin:0 0 8px}
.field .req{color:var(--green);font-size:11px;margin-left:4px}
.field .hint{display:block;font-size:11.5px;color:var(--gray-dark);margin-top:6px}
.field input,.field textarea{
  width:100%;padding:13px 14px;border-radius:8px;border:1px solid var(--gray-dark);
  background:var(--white);outline:none;transition:border .2s var(--ease);font-size:14px;color:var(--navy);
  font-family:inherit;
}
.field input:focus,.field textarea:focus{border-color:var(--green)}
.field textarea{min-height:150px;resize:vertical}
.checkField{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text)}
.checkField input{width:18px;height:18px;flex:0 0 auto;margin-top:2px;accent-color:var(--green)}
@media (max-width:640px){
  .formGrid{grid-template-columns:1fr}
}

/* Footer */
footer{background:var(--navy-deep);color:#fff;padding:52px 0 30px}
.foot-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12)}
.foot-brand img{height:24px;margin-bottom:12px}
.foot-tagline{font-size:14px;color:rgba(255,255,255,.6);margin:0}
.foot-nav{display:flex;flex-wrap:wrap;gap:14px 28px}
.foot-nav a{font-size:13.5px;color:rgba(255,255,255,.68)}
.foot-nav a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:12px;color:rgba(255,255,255,.45)}
.foot-bottom a{color:rgba(255,255,255,.55)}
.foot-bottom a:hover{color:#fff}

/* Final CTA (shared across pages) */
.final-cta{background:var(--navy);position:relative;z-index:0;overflow:hidden}
.final-cta::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 85% 20%, rgba(255,128,138,.28), transparent 45%),
    radial-gradient(circle at 70% 90%, rgba(108,92,231,.28), transparent 50%),
    radial-gradient(circle at 30% 50%, rgba(63,167,255,.22), transparent 55%);
}
.final-cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:56px 0}
.final-cta h2{font-weight:700;font-size:clamp(24px,3vw,34px);margin:0 0 10px;color:#fff}
.final-cta p{font-size:14px;color:rgba(255,255,255,.68);margin:0}
.final-cta .btn{
  display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--navy);
  padding:16px 30px;border-radius:100px;font-weight:700;font-size:15px;flex:0 0 auto;
  transition:transform .25s var(--ease);
}
.final-cta .btn:hover{transform:translateX(3px)}

/* Responsive (shared) */
@media (max-width:900px){
  .navlinks{display:none}
  .menuBtn{display:flex}
  .container{padding-left:24px;padding-right:24px}
  .nav{padding-top:12px;padding-bottom:12px}
  .foot-top{flex-direction:column;gap:28px}
  .final-cta-inner{flex-direction:column;align-items:flex-start;padding:48px 24px}
  .brand img{height:28px}
}
@media (max-width:600px){
  .brand img{height:26px}
}

/* ================================================================
   Phase 2 foundation — Level B Icon / Diagram
   Added as unused, standalone components. Nothing on the live site
   references these classes yet; they exist so upcoming pages
   (support areas, AI use-cases, ZMOT-style diagrams, etc.) share one
   visual language instead of each page inventing its own.
   ================================================================ */

/* Line-weight tokens used by diagrams (see design brief, section 5) */
:root{
  --line-hairline:1px;   /* 補助線 */
  --line-main:1.5px;     /* 主要線 */
}

/* Level B Icon — lighter than the Level A icon used in "経験と実績"
   (outline-first, thin stroke, gray-dominant, no fill/shadow/gradient).
   Always pair with adjacent text; never use as the sole carrier of meaning.
   Mark at most one meaningful stroke/shape per icon with [data-accent] for
   the single Exfort Green focal point. */
.icon-b{
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  width:40px;height:40px;
}
.icon-b svg{
  width:22px;height:22px;
  fill:none;
  stroke:var(--gray-dark);
  stroke-width:1.75;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.icon-b svg [data-accent]{stroke:var(--green)}

/* Inline text link — for contextual links inside body copy (.lead,
   .fine-print, and similar prose paragraphs). Kept deliberately quiet at
   rest (Navy + thin underline, no bold) so it reads as a link rather than
   as brand-accent Green emphasis text; Green appears only on hover/focus,
   which also keeps it visually distinct from the Green already used
   elsewhere as a non-link accent color. Keyboard focus is handled by the
   sitewide :focus-visible rule above, so it isn't redefined here.
   Do not use on header/footer nav, CTAs, .related-nav, .final-cta, or the
   logo link — those are separate, already-established components. */
.inline-link{
  color:var(--navy);
  font-weight:400;
  text-decoration-line:underline;
  text-decoration-thickness:1px;
  text-underline-offset:0.18em;
  text-decoration-color:currentColor;
  transition:color .2s var(--ease), text-decoration-color .2s var(--ease);
}
.inline-link:hover,.inline-link:focus{
  color:var(--green);
  text-decoration-color:var(--green);
}

/* Fine print — small source citations / disclaimers under a diagram or
   concept section (e.g. crediting a third-party model this site's own
   diagram was inspired by). Keep to one or two short lines. */
.fine-print{font-size:12px;color:var(--gray-dark);line-height:1.8;margin:24px 0 0;max-width:720px}

/* Mini CTA — a quiet, textual nudge toward a distinct related service
   (not a mid-sentence reference, and not the primary contact action).
   Three-tier link system on this site:
     .inline-link  = contextual reference inside a paragraph
     .mini-cta     = "see this other service next" (this component)
     .btn-primary / .final-cta = primary action (contact, etc.)
   Built from existing pieces (.card-cta + .arw) rather than a new button
   style, so it stays visually lighter than any real CTA button. */
.mini-cta{border-top:1px solid var(--gray);padding-top:28px;margin-top:36px}
.mini-cta-h{font-size:15px;font-weight:700;color:var(--navy);margin:0 0 8px}
.mini-cta-d{font-size:13.5px;color:var(--text);line-height:1.85;margin:0 0 16px;max-width:560px}

/* Diagram — generic container for relationship/flow diagrams (distinct
   from .process-strip above, which already covers sequential "Process").
   Keep explanatory text as real HTML around this container; use this only
   for the shapes/nodes/short labels themselves (see section 6 of the brief).
   Defaults to a horizontal row and collapses to a vertical list under
   900px, matching the responsive pattern already used by .process-strip. */
.diagram{
  background:var(--near-white);border:1px solid var(--gray);border-radius:20px;
  padding:clamp(28px,4vw,48px);
}
.diagram-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;position:relative}
.diagram-connector{
  position:absolute;top:5px;left:0;right:0;height:var(--line-hairline);background:var(--gray-dark);opacity:.35;z-index:0;
}
.diagram-connector.is-focus{background:var(--green);opacity:.6;height:var(--line-main)}
.diagram-node{flex:1;text-align:center;position:relative;z-index:1}
.diagram-node .dot{display:block;margin:0 auto 10px;width:10px;height:10px;border-radius:50%;background:var(--gray-dark)}
.diagram-node.is-focus .dot{background:var(--green)}
.diagram-node .lbl-en{font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gray-dark);margin:0 0 4px}
.diagram-node .lbl-jp{font-size:13px;font-weight:600;color:var(--navy);margin:0;line-height:1.6}
.diagram-node .lbl-sub{font-size:12px;color:var(--text);margin:6px 0 0;line-height:1.7}
.diagram-node .lbl-note{font-size:11px;color:var(--gray-dark);margin:4px 0 0;line-height:1.6}
@media (max-width:900px){
  .diagram-row{flex-direction:column;align-items:stretch;gap:0}
  .diagram-connector{display:none}
  .diagram-node{text-align:left;display:flex;align-items:flex-start;gap:14px;padding:14px 0;border-top:1px solid var(--gray)}
  .diagram-node:first-child{border-top:0}
  .diagram-node .dot{margin:5px 0 0;flex:0 0 auto}
  .diagram-node .tx{flex:1;min-width:0}
}