:root{
    --night:#1d1814;      /* 夜の書斎 */
    --night-2:#251f1a;
    --wood:#3b2d23;       /* 棚板 */
    --wood-edge:#58432f;
    --paper:#efe6d8;      /* 紙 */
    --ink-soft:#a99a8b;   /* 薄墨 */
    --peach:#ffcaa6;      /* ロゴのピーチ */
    --energy:#ff7f27;     /* ロゴの橙 = エネルギーの線 */
    --line:#3a312a;
    --font:"Shippori Mincho B1","Yu Mincho","YuMincho","Hiragino Mincho ProN","Noto Serif JP",serif;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--night);color:var(--paper);font-family:var(--font);line-height:2;font-size:16px;
    background-image:radial-gradient(ellipse 70% 900px at 50% 0%, #2c231c 0%, transparent 70%);background-repeat:no-repeat}
  a{color:inherit}
  :focus-visible{outline:2px solid var(--peach);outline-offset:3px;border-radius:2px}
  .wrap{max-width:1040px;margin:0 auto;padding:0 28px}

  /* ── ヘッダ(固定) ── */
  .bar{position:sticky;top:0;z-index:10;box-shadow:0 1px 0 rgba(255,127,39,.25);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    background:rgba(29,24,20,.72)}
  .bar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
  .mark{font-weight:800;letter-spacing:.02em;text-decoration:none;font-size:18px;display:flex;align-items:center;gap:10px}
  .bar nav{display:flex;gap:22px;font-size:14px}
  .bar nav a{text-decoration:none;color:var(--ink-soft)}
  .bar nav a:hover{color:var(--paper)}

  /* ── ヒーロー: 屋号と本棚 ── */
  .hero{min-height:min(calc(100svh - 60px),820px);display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;padding:56px 0 72px}
  .hero h1{font-size:clamp(52px,9vw,112px);line-height:1;margin:0;font-weight:800;letter-spacing:-.01em}
  .kana{color:var(--ink-soft);margin:18px 0 36px;font-size:15px;letter-spacing:.35em}
  .copy{font-size:clamp(20px,2.6vw,28px);margin:0 0 20px;line-height:1.6}
  .lead{color:var(--ink-soft);margin:0;max-width:30em}


  .emblem{width:min(100%,380px);justify-self:center;filter:drop-shadow(0 0 28px rgba(255,127,39,.18))}
  .flow path{stroke-dasharray:6 94;animation:flow 3.2s linear infinite;animation-delay:var(--d,0s);opacity:.9}
  @keyframes flow{from{stroke-dashoffset:100}to{stroke-dashoffset:0}}

  /* ハンバーガー */
  .burger{width:44px;height:44px;display:grid;place-content:center;gap:6px;background:none;border:0;cursor:pointer;padding:0}
  .burger span{display:block;width:24px;height:2px;background:var(--paper);border-radius:2px;transition:transform .25s,opacity .2s,background .2s}
  .burger:hover span{background:var(--energy)}
  .burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg);background:var(--energy)}
  .burger[aria-expanded="true"] span:nth-child(2){opacity:0}
  .burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg);background:var(--energy)}
  /* メニュー: 右からぬるっと出る引き出し。トップは見えたまま */
  .veil{position:fixed;inset:0;z-index:8;background:rgba(10,8,6,.28);opacity:0;pointer-events:none;transition:opacity .45s ease}
  .menu{position:fixed;top:0;right:0;bottom:0;z-index:9;width:min(300px,78vw);padding:92px 36px 36px;
    background:rgba(29,24,20,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    box-shadow:-1px 0 0 rgba(255,127,39,.35),-24px 0 60px rgba(0,0,0,.35);
    display:flex;flex-direction:column;align-items:flex-start;gap:6px;
    transform:translateX(104%);visibility:hidden;transition:transform .6s cubic-bezier(.22,1,.36,1),visibility 0s linear .6s}
  .menu a{text-decoration:none;font-size:22px;font-weight:600;padding:6px 0;border-bottom:1px solid transparent;
    opacity:0;transform:translateX(18px);transition:opacity .4s ease,transform .5s cubic-bezier(.22,1,.36,1),border-color .2s}
  .menu a:hover,.menu a:focus-visible{border-bottom-color:var(--energy);outline:none}
  .menu a.small{font-size:14px;color:var(--ink-soft);margin-top:20px;font-weight:400}
  body.menu-open .veil{opacity:1;pointer-events:auto}
  body.menu-open .menu{transform:none;visibility:visible;transition:transform .6s cubic-bezier(.22,1,.36,1),visibility 0s}
  body.menu-open .menu a{opacity:1;transform:none}
  body.menu-open .menu a:nth-child(1){transition-delay:.12s}
  body.menu-open .menu a:nth-child(2){transition-delay:.17s}
  body.menu-open .menu a:nth-child(3){transition-delay:.22s}
  body.menu-open .menu a:nth-child(4){transition-delay:.27s}
  .bar{z-index:10}

  /* ── セクション ── */
  section{padding:88px 0;scroll-margin-top:60px;position:relative}
  section::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--energy) 20%,var(--energy) 40%,transparent 85%);opacity:.55}
  #rs-form{scroll-margin-top:80px}
  h2{font-size:clamp(26px,3.4vw,36px);margin:0 0 36px;font-weight:600;line-height:1.4}

  .works{display:grid;grid-template-columns:2fr 1fr;gap:20px}
  .work{border-radius:14px;padding:32px;min-height:260px;display:flex;flex-direction:column;justify-content:flex-end}
  .work.main{background:linear-gradient(160deg,#2c3a52 0%,#1e2533 100%);border:1px solid #3c4a63}
  .work.next{border:1px dashed #5a4a3d}
  .work .kind{font-size:13px;color:var(--ink-soft);margin:0}
  .work h3{font-size:clamp(28px,4vw,44px);margin:4px 0 8px;line-height:1.2}
  .work.next h3{font-size:26px;color:var(--ink-soft)}
  .work p.desc{margin:0;max-width:28em}

  .news{list-style:none;margin:0;padding:0;max-width:44em}
  .news li{display:grid;grid-template-columns:7.5em 1fr;padding:14px 0;border-bottom:1px solid var(--line)}
  .news time{color:var(--ink-soft);font-variant-numeric:tabular-nums}


  /* ── 連絡先: 案内係とフォーム ── */
  .page{padding:72px 0 96px}
  .page h1{font-size:clamp(30px,4vw,44px);margin:0 0 32px;font-weight:600}
  .contact{max-width:680px}
  .sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .bot{background:var(--night-2);border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:14px}
  .bot-log{display:flex;flex-direction:column;gap:10px;max-height:420px;min-height:160px;overflow-y:auto;padding:4px 2px}
  .msg{margin:0;padding:10px 14px;border-radius:14px;max-width:85%;white-space:pre-line;line-height:1.8;font-size:15px}
  .msg.bot{background:#2f2721;align-self:flex-start;border-bottom-left-radius:4px}
  .msg.me{background:var(--peach);color:#2a2018;align-self:flex-end;border-bottom-right-radius:4px}
  .msg.typing{color:var(--ink-soft)}
  .bot-chips{display:flex;flex-wrap:wrap;gap:8px}
  .bot-chips button,.bot-ask button,.inq button{font:inherit;font-size:14px;cursor:pointer;border-radius:999px;padding:7px 14px;
    background:transparent;color:var(--paper);border:1px solid #5a4a3d}
  .bot-chips button:hover{border-color:var(--energy)}
  .bot-chips button.go,.inq button[type=submit]{background:var(--energy);color:#1d1814;border-color:var(--energy);font-weight:600}
  .bot-chips button.quiet{color:var(--ink-soft);border-style:dashed}
  .bot-ask{display:flex;gap:8px}
  .bot-ask input,.inq input,.inq select,.inq textarea{font:inherit;font-size:15px;color:var(--paper);background:var(--night);
    border:1px solid #4a3d33;border-radius:10px;padding:9px 12px;width:100%}
  .bot-ask input{flex:1}
  .inq{margin-top:20px;background:var(--night-2);border:1px solid var(--line);border-radius:16px;padding:22px}
  .inq form{display:flex;flex-direction:column;gap:14px}
  .inq label{display:flex;flex-direction:column;gap:6px;font-size:14px}
  .inq .hint{font-size:12px;color:var(--ink-soft)}
  .inq .hp{position:absolute;left:-9999px}
  .inq label.agree{flex-direction:row;align-items:center;gap:8px}
  .inq label.agree input{width:auto}
  .inq button[type=submit]{align-self:flex-start;padding:9px 26px}
  .inq button[disabled]{opacity:.5;cursor:wait}
  .form-status{margin:0;font-size:14px;min-height:1.5em}
  .form-status.error{color:#f0a3a3}

  footer{border-top:1px solid var(--line);padding:40px 0 64px;color:var(--ink-soft);font-size:13px}

  @media (max-width:820px){
    .hero{grid-template-columns:1fr;gap:40px;min-height:auto;padding:48px 0 64px}
    .emblem{width:min(70%,260px)}
    .works{grid-template-columns:1fr}
    .page{padding:48px 0 72px}
    .work{min-height:200px;padding:26px}
    section{padding:64px 0}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .flow{display:none}
    .burger span,.menu,.menu a,.veil{transition:none !important}
  }