@charset "UTF-8";
:root{
  --paper:#F6F1E3;
  --paper-deep:#ECE3CC;
  --paper-line:#CDC2A0;
  --ink:#1B2238;
  --ink-soft:#454F72;
  --ink-faint:#7A8099;
  --indigo:#243463;
  --indigo-deep:#161E38;
  --seal:#A23B3B;
  --seal-deep:#7E2C2C;
  --brass:#93733A;
  --dawn:#EAD3A3;
  --max:1080px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Noto Sans JP', sans-serif;
  font-weight:400;
  line-height:1.9;
  /* word-break:keep-all; */
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.mincho{
  font-family:'Shippori Mincho', serif;
  font-weight:700;
  letter-spacing:.02em;
  word-break:keep-all;
}
.mono{ font-family:'JetBrains Mono', monospace; letter-spacing:.04em; }
a{color:inherit;}
img,svg{display:block;max-width:100%;}
.wrap{max-width:var(--max); margin:0 auto; padding:0 28px; position:relative;}
.icon{ display:inline-flex; flex:none; }

/* ---------- Brand mark (logo) ---------- */
.brand-mark{ display:flex; align-items:center; gap:9px; }
.brand-mark .mark-badge{ width:30px; height:30px; flex:none; }
.brand-mark .mark-text{ font-family:'Shippori Mincho', serif; font-weight:700; font-size:14.5px; color:var(--indigo-deep); letter-spacing:.03em; line-height:1.3; }
.brand-mark .mark-text small{ display:block; font-family:'JetBrains Mono',monospace; font-weight:400; font-size:8.5px; color:var(--ink-faint); letter-spacing:.1em; }

/* ---------- Topbar ---------- */
.topbar{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  background:rgba(246,241,227,0);
  border-bottom:1px solid rgba(205,194,160,0);
  transition:background .35s ease, border-color .35s ease, padding .35s ease;
}
.topbar.scrolled{
  background:rgba(246,241,227,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--paper-line);
  padding:11px 28px;
}
.topbar-cta{
  font-size:12.5px; text-decoration:none; color:var(--indigo);
  border:1px solid var(--indigo); border-radius:999px;
  padding:7px 16px; transition:background .25s ease, color .25s ease;
  white-space:nowrap;
}
.topbar-cta:hover{ background:var(--indigo); color:var(--paper); }

/* ---------- Hero ---------- */
.hero{ position:relative; overflow:hidden; padding:54px 0 0; }
.hero-bg{ position:absolute; inset:0; z-index:0; line-height:0; }
.hero-bg svg{ width:100%; height:100%; display:block; }
.hero-content{ position:relative; z-index:2; padding-top:46px; padding-bottom:250px; max-width:660px; }
.eyebrow{
  font-family:'JetBrains Mono', monospace; font-size:11.5px; letter-spacing:.18em;
  color:var(--seal); margin:0 0 18px; text-transform:uppercase;
}
h1{ font-size:clamp(34px,5vw,54px); line-height:1.32; color:var(--indigo-deep); margin:0 0 22px; }
h1 em{ font-style:normal; color:var(--seal); }
.lead{ font-size:16px; color:var(--ink-soft); max-width:46ch; margin:0 0 28px; }
.ledger-strip{
  display:flex; flex-wrap:wrap; gap:14px 0;
  border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line);
  padding:16px 20px; border-radius:8px;
  background:rgba(246,241,227,.82); backdrop-filter:blur(5px);
  border:1px solid var(--paper-line);
}
.ledger-strip span{
  font-family:'JetBrains Mono', monospace; font-size:12px; color:var(--ink-soft);
  padding:0 18px; border-right:1px solid var(--paper-line);
}
.ledger-strip span:last-child{ border-right:none; }
.ledger-strip span:first-child{ padding-left:0; }
.ledger-strip b{ display:block; font-family:'Noto Sans JP',sans-serif; font-weight:500; color:var(--ink-faint); font-size:10.5px; margin-bottom:3px; letter-spacing:.06em; }

/* ---------- Section shell + kanji tabs ---------- */
section.block{ padding:74px 0; position:relative; border-top:1px solid var(--paper-line); }
.tab{
  position:absolute; left:-58px; top:74px;
  width:40px; height:40px; border-radius:50%;
  border:1.5px solid var(--seal); color:var(--seal);
  display:flex; align-items:center; justify-content:center;
  font-family:'Shippori Mincho',serif; font-size:17px; font-weight:700;
  background:var(--paper);
}
.block-head{ max-width:640px; margin:0 0 36px; }
.kicker{ font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:.16em; color:var(--brass); margin:0 0 10px; text-transform:uppercase; }
h2{ font-size:clamp(24px,3vw,32px); color:var(--indigo-deep); margin:0 0 14px; display:flex; align-items:flex-start; gap:12px; }
h2 .icon{ width:26px; height:26px; color:var(--seal); margin-top:.22em; flex:none; }
.block-desc{ color:var(--ink-soft); font-size:15px; max-width:60ch; }

.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ---------- Mission ---------- */
.mission-grid{ display:grid; grid-template-columns:80px 1fr; gap:24px; align-items:flex-start; }
.mission-grid .icon{ width:54px; height:54px; color:var(--seal); }
.mission-text{ font-size:17px; color:var(--ink-soft); max-width:68ch; }
.mission-text strong{ color:var(--indigo-deep); font-weight:600; }

/* ---------- Business cards ---------- */
.cards{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:8px; }
.card{
  background:var(--paper-deep); border:1px solid var(--paper-line); border-radius:6px;
  padding:20px 18px; min-height:138px; display:flex; flex-direction:column; gap:10px;
}
.card .icon{ width:24px; height:24px; color:var(--seal); }
.card .num{ font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--brass); }
.card .txt{ font-size:13.5px; color:var(--ink); line-height:1.7; }

/* ---------- Project ---------- */
.badge{
  display:inline-block; font-family:'JetBrains Mono',monospace; font-size:10.5px;
  color:var(--brass); border:1px solid var(--brass); border-radius:999px;
  padding:4px 12px; margin-bottom:14px; letter-spacing:.04em;
}
.project-cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:30px; }
.project-card{ background:var(--paper); border:1px solid var(--paper-line); border-radius:6px; padding:22px; }
.project-card .icon{ width:30px; height:30px; color:var(--indigo); margin-bottom:14px; }
.project-card .label{ font-family:'JetBrains Mono',monospace; font-size:10.5px; color:var(--seal); letter-spacing:.06em; margin-bottom:8px; text-transform:uppercase; }
.project-card h3{ font-size:17px; color:var(--indigo-deep); margin:0 0 10px; font-weight:700; }
.project-card p{ font-size:13.5px; color:var(--ink-soft); margin:0; }
.note-box{
  margin-top:28px; border-left:3px solid var(--brass); background:var(--paper-deep);
  padding:16px 20px; font-size:13px; color:var(--ink-soft); display:flex; gap:12px; align-items:flex-start;
}
.note-box .icon{ width:18px; height:18px; color:var(--brass); margin-top:2px; }

/* ---------- Why cards ---------- */
.why-cards{ display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin-top:8px; }
.why-card{ display:flex; gap:16px; }
.why-card .mark{
  flex:none; width:40px; height:40px; border-radius:50%;
  background:var(--indigo); color:var(--paper); display:flex; align-items:center; justify-content:center;
}
.why-card .mark .icon{ width:19px; height:19px; }
.why-card h3{ font-size:15.5px; margin:2px 0 6px; color:var(--indigo-deep); }
.why-card p{ font-size:13.5px; color:var(--ink-soft); margin:0; }

/* ---------- Scheme ---------- */
.scheme{ display:grid; grid-template-columns:1fr auto 1fr; gap:18px; align-items:center; margin-top:10px; }
.scheme-box{ background:var(--paper-deep); border:1px solid var(--paper-line); border-radius:6px; padding:28px 22px; text-align:center; }
.scheme-box .icon{ width:42px; height:42px; color:var(--indigo); margin:0 auto 14px; }
.scheme-box .tag{ font-family:'JetBrains Mono',monospace; font-size:10.5px; color:var(--brass); letter-spacing:.06em; margin-bottom:10px; text-transform:uppercase;}
.scheme-box h3{ font-size:18px; color:var(--indigo-deep); margin:0 0 8px; }
.scheme-box .sub{ font-size:12px; color:var(--ink-faint); margin-bottom:14px; }
.scheme-roles{ text-align:left; font-size:13px; color:var(--ink-soft); display:flex; flex-direction:column; gap:6px; }
.scheme-arrow{ width:30px; height:30px; color:var(--seal); }
.scheme-status{
  display:inline-block; margin-top:14px; font-size:11px; font-family:'JetBrains Mono',monospace;
  color:var(--seal-deep); background:rgba(162,59,59,.08); border:1px solid rgba(162,59,59,.3);
  border-radius:999px; padding:4px 12px;
}

/* ---------- Representative message ---------- */
.rep{ display:grid; grid-template-columns:.85fr 1.15fr; gap:42px; align-items:center; margin-top:8px; }
.rep-photo{ position:relative; }
.rep-photo img{ width:100%; border-radius:6px; filter:saturate(.96) contrast(1.02); border:1px solid var(--paper-line); }
.rep-photo::after{
  content:""; position:absolute; inset:14px -14px -14px 14px; z-index:-1;
  border:1.5px solid var(--seal); border-radius:6px;
}
.rep-quote{ font-family:'Shippori Mincho',serif; font-size:20px; line-height:1.95; color:var(--indigo-deep); margin:0 0 22px; font-weight:600;}
.rep-body{ font-size:14.5px; color:var(--ink-soft); margin:0 0 22px; }
.rep-sign{ display:flex; align-items:center; gap:14px; }
.rep-sign .sealmark{
  width:46px; height:46px; border-radius:50%; border:1.5px solid var(--seal); color:var(--seal);
  display:flex; align-items:center; justify-content:center; font-family:'Shippori Mincho',serif; font-size:13px; font-weight:700;
}
.rep-sign .who b{ display:block; font-family:'Shippori Mincho',serif; font-size:15px; color:var(--indigo-deep); }
.rep-sign .who span{ font-size:12px; color:var(--ink-faint); }

/* ---------- Company table ---------- */
table.ledger{ width:100%; border-collapse:collapse; margin-top:8px; }
table.ledger th,table.ledger td{ text-align:left; padding:15px 0; border-bottom:1px solid var(--paper-line); vertical-align:top; font-size:14px; }
table.ledger th{ width:170px; color:var(--ink-faint); font-weight:500; font-size:12.5px; letter-spacing:.04em; padding-right:18px; }
table.ledger td{ color:var(--ink); }
table.ledger td.mono{ font-family:'JetBrains Mono',monospace; font-size:13px; }

/* ---------- Contact ---------- */
.contact-box{
  display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;
  background:var(--indigo-deep); color:var(--paper); border-radius:8px; padding:48px 44px;
}
.contact-box h2{ color:var(--paper); }
.contact-box h2 .icon{ color:var(--dawn); }
.contact-box .block-desc{ color:#C7CCE0; }
.contact-list{ display:flex; flex-direction:column; gap:18px; }
.contact-list .row{ display:flex; align-items:flex-start; gap:12px; }
.contact-list .row .icon{ width:19px; height:19px; color:var(--dawn); margin-top:2px; }
.contact-list .row .txt{ display:flex; flex-direction:column; gap:3px; }
.contact-list .row b{ font-size:11px; color:#9AA4C8; letter-spacing:.08em; font-family:'JetBrains Mono',monospace; text-transform:uppercase; }
.contact-list .row span{ font-size:15px; }
.form-btn{
  display:inline-flex; align-items:center; gap:10px; margin-top:22px;
  background:var(--seal); color:var(--paper); padding:13px 22px; border-radius:999px;
  font-size:14px; text-decoration:none; transition:background .2s ease, transform .2s ease;
}
.form-btn .icon{ width:17px; height:17px; color:var(--paper); }
.form-btn:hover{ background:var(--seal-deep); transform:translateY(-1px); }

/* ---------- Footer ---------- */
footer{ padding:48px 0 38px; text-align:center; }
footer .brand-mark{ justify-content:center; margin-bottom:10px; }
footer .addr{ font-size:12.5px; color:var(--ink-faint); margin-bottom:14px; }
footer .cr{ font-family:'JetBrains Mono', monospace; font-size:11px; color:var(--ink-faint); letter-spacing:.05em; }

@media (max-width:980px){
  .hero-content{ padding-top:30px; padding-bottom:200px; }
  h1{ font-size:32px; }
  .cards{ grid-template-columns:repeat(2,1fr); }
  .project-cards{ grid-template-columns:1fr; }
  .why-cards{ grid-template-columns:1fr; }
  .scheme{ grid-template-columns:1fr; }
  .scheme-arrow{ transform:rotate(90deg); margin:4px auto; }
  .rep{ grid-template-columns:1fr; }
  .rep-photo::after{ display:none; }
  .contact-box{ grid-template-columns:1fr; padding:36px 26px; }
  table.ledger th{ width:120px; font-size:12px; }
  .tab{ display:none; }
  .mission-grid{ grid-template-columns:1fr; }
}
@media (max-width:440px){
  .topbar { padding:16px 3%; }
  .topbar.scrolled { padding: 11px 3%; }
  .brand-mark { gap: 5px; }
  .brand-mark .mark-text { font-size: 13px; }
  table.ledger th { width: 80px; padding-right: 10px; }
}
@media (max-width:414px){
  h2 { font-size: 22px; }
}
@media (min-width:375px){
  .brand-mark .mark-text br {
    display: none;
  }
}
@media (max-width:374px){
  .brand-mark .mark-text small {
    font-size: 6px;
  }
  h2 { font-size: 18px; }
  .scheme-box h3 { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; }
}