/* ============ tokens ============ */
  :root{
    --washi:#FBF8F1;
    --washi-2:#F4EFE3;
    --ink:#2A2A2F;
    --ink-2:#55555D;
    --ink-3:#8A8A92;
    --water:#B8D3E2;
    --water-soft:#DCEAF1;
    --deep:#4A6180;
    --rule:rgba(42,42,47,.10);
    --rule-2:rgba(42,42,47,.05);
    --mx:min(8vw, 128px);
    --text-scale:1;
    --line-scale:1;
    --mincho:"Shippori Mincho B1", "Noto Serif JP", serif;
    --serif:"Noto Serif JP", "EB Garamond", Georgia, serif;
    --garamond:"EB Garamond","Noto Serif JP",Georgia,serif;
    --mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
  }
  body.dark{
    --washi:#1A1C20;
    --washi-2:#222429;
    --ink:#F2EEE3;
    --ink-2:#D0CCBF;
    --ink-3:#9A9890;
    --water:#B8D3E2;
    --water-soft:#7D97A9;
    --deep:#D8E4F0;
    --rule:rgba(242,238,227,.14);
    --rule-2:rgba(242,238,227,.06);
  }

  *{box-sizing:border-box}
  html,body{margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--washi);
    color:var(--ink);
    font-family:var(--serif);
    font-size:calc(17px * var(--text-scale));
    line-height:calc(1.9 * var(--line-scale));
    letter-spacing:.05em;
    font-feature-settings:"palt" 1, "pkna" 1;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
    word-break:keep-all;
    line-break:strict;
    overflow-wrap:break-word;
  }
  ::selection{background:var(--water);color:var(--ink)}

  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}

  /* ============ paper grain ============ */
  .paper-grain{
    position:fixed; inset:0; pointer-events:none; z-index:1;
    background-image:
      radial-gradient(rgba(42,42,47,.018) 1px, transparent 1px),
      radial-gradient(rgba(42,42,47,.012) 1px, transparent 1px);
    background-size: 3px 3px, 7px 7px;
    background-position: 0 0, 1px 2px;
    mix-blend-mode:multiply;
    opacity:.5;
  }
  body.dark .paper-grain{mix-blend-mode:screen; opacity:.25}

  /* ============ global chrome ============ */
  .chrome{
    position:fixed; top:0; left:0; right:0; z-index:20;
    display:flex; justify-content:space-between; align-items:flex-start;
    padding:22px var(--mx);
    pointer-events:none;
  }
  .chrome > *{pointer-events:auto}
  .kn-logo{display:flex;align-items:center;gap:14px}
  .kn-mark{width:34px;height:34px;position:relative}
  .kn-mark svg{width:100%;height:100%;display:block}
  .kn-text{
    font-family:var(--mincho); font-weight:700; font-size:16px; letter-spacing:.18em;
    color:var(--ink);
  }
  .kn-text small{
    display:block; font-family:var(--mono); font-weight:300; font-size:9.5px;
    letter-spacing:.35em; color:var(--ink-3); margin-top:2px;
  }
  .pf-tag{
    text-align:right; font-family:var(--mono); font-size:10.5px;
    letter-spacing:.3em; color:var(--ink-3);
    display:flex; flex-direction:column; gap:6px; align-items:flex-end;
  }
  .chrome-right{
    display:flex; align-items:flex-start; gap:16px;
  }
  .mode-toggle{
    appearance:none;
    width:36px; height:36px; border-radius:50%;
    border:1px solid var(--rule);
    background:transparent;
    color:var(--ink-2);
    display:grid; place-items:center;
    cursor:pointer;
    font-size:16px; line-height:1;
    padding:0;
    transition:border-color .2s ease, color .2s ease, background .2s ease;
  }
  .mode-toggle:hover{
    border-color:var(--deep);
    color:var(--deep);
  }
  .mode-toggle:focus-visible{
    outline:2px solid var(--deep);
    outline-offset:2px;
  }
  .mode-toggle .mode-icon{ display:none; }
  .mode-toggle .mode-icon-moon{ display:inline; }
  body.dark .mode-toggle .mode-icon-moon{ display:none; }
  body.dark .mode-toggle .mode-icon-sun{ display:inline; }
  .pf-tag .pf-mark{
    display:inline-flex; align-items:center; gap:10px;
    font-family:var(--mincho); font-size:13px; letter-spacing:.22em;
    color:var(--deep);
  }
  .pf-tag .pf-dot{
    width:8px; height:8px; border-radius:50%;
    background:var(--water); box-shadow:0 0 0 3px rgba(184,211,226,.3);
    animation:pulseDot 4s ease-in-out infinite;
  }

  /* ============ flow line (scroll-linked) ============ */
  .flow-svg{
    position:absolute; top:0; left:0; width:100%; height:100%;
    pointer-events:none; z-index:2;
  }
  .flow-path{
    fill:none;
    stroke:var(--water);
    stroke-width:1.1;
    stroke-linecap:round;
    stroke-linejoin:round;
    opacity:.85;
    filter: drop-shadow(0 0 8px rgba(184,211,226,.4));
  }
  .flow-path.branch{
    stroke:var(--water-soft);
    stroke-width:.7;
    opacity:.55;
    stroke-dasharray:2 4;
  }

  /* ============ layout ============ */
  main{position:relative; z-index:3}
  .section{
    position:relative;
    padding: 140px var(--mx) 160px;
    min-height:100vh;
    display:grid;
    grid-template-columns: 96px 1fr;
    gap: 48px;
    align-content:center;
  }
  .rail{
    position:sticky; top:140px; align-self:start;
    display:flex; flex-direction:column; gap:14px;
    font-family:var(--mono); font-size:10.5px; letter-spacing:.3em;
    color:var(--ink-3); text-transform:uppercase;
  }
  .rail .numeral{
    font-family:var(--mincho); font-size:22px; letter-spacing:0;
    color:var(--deep); line-height:1;
  }
  .rail .rail-v{
    writing-mode:vertical-rl; text-orientation:mixed;
    height:140px; border-left:1px solid var(--rule);
    padding:12px 0 12px 10px;
  }
  .rail .rail-tag{ color:var(--ink-3); }

  /* ============ §1 FV ============ */
  .fv{
    min-height: 100vh;
    display:grid;
    grid-template-rows: 1fr auto;
    padding:0 var(--mx) 80px;
    grid-template-columns: 1fr;
    gap:0;
    align-items:center;
    position:relative;
  }
  .fv-stage{
    display:grid;
    place-items:center;
    position:relative;
    padding-top:120px;
  }
  .fv-mission{
    font-family:var(--mincho);
    font-weight:500;
    font-size: clamp(34px, 7.4vw, 108px);
    line-height:1.45;
    letter-spacing:.08em;
    color:var(--ink);
    text-align:center;
    position:relative;
    animation: pulseBreath 4s ease-in-out infinite;
  }
  .fv-mission .cut{display:inline-block}
  .fv-mission .grain{
    color:var(--deep);
    position:relative;
  }
  .fv-mission .grain::after{
    content:"";
    position:absolute; left:0; right:0; bottom:-.12em;
    height:2px;
    background:linear-gradient(90deg, transparent 0, var(--water) 20%, var(--water) 80%, transparent 100%);
    animation: pulseLine 4s ease-in-out infinite;
    transform-origin:center;
  }
  .fv-submission{
    margin-top:56px;
    text-align:center;
    font-family:var(--garamond);
    font-style:italic;
    font-size: clamp(14px, 1.3vw, 18px);
    letter-spacing:.18em;
    color:var(--ink-3);
  }
  .fv-submission .sep{ display:inline-block; width:28px; height:1px; background:var(--ink-3); vertical-align:middle; margin:0 16px; opacity:.5 }

  .fv-footer{
    display:grid;
    grid-template-columns: 1fr auto 1fr;
    align-items:end;
    gap:24px;
    font-family:var(--mono); font-size:10.5px; letter-spacing:.3em;
    color:var(--ink-3);
  }
  .fv-footer .meta-l{text-align:left}
  .fv-footer .meta-r{text-align:right}

  .pf-lockup{
    display:flex; flex-direction:column; align-items:center; gap:10px;
  }
  .pf-lockup .pf-title{
    font-family:var(--mincho); font-size:16px; letter-spacing:.28em; color:var(--deep);
  }
  .pf-lockup .pf-sub{
    font-family:var(--garamond); font-style:italic; font-size:13px; letter-spacing:.18em; color:var(--ink-3);
  }
  .pf-lockup .pf-wave{ width:80px; height:14px; opacity:.9 }

  /* scroll cue — anchored to right edge so it never collides with the centered FV lockup */
  .scroll-cue{
    position:absolute; right:var(--mx); bottom:120px;
    display:flex; flex-direction:column; align-items:center; gap:10px;
    font-family:var(--mono); font-size:9.5px; letter-spacing:.35em; color:var(--ink-3);
    writing-mode:vertical-rl;
  }
  .scroll-cue .line{
    width:1px; height:56px; background:linear-gradient(to bottom, transparent, var(--ink-3), transparent);
    animation: cueDrop 3.6s ease-in-out infinite;
    writing-mode:horizontal-tb;
  }
  @media (max-width: 980px){
    .scroll-cue{ display:none }
  }

  /* ============ shared block type ============ */
  .eyebrow{
    font-family:var(--mono); font-size:11px; letter-spacing:.32em;
    color:var(--ink-3); text-transform:uppercase;
    display:inline-flex; align-items:center; gap:10px;
    margin-bottom:28px;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--water);
    animation:pulseDot 4s ease-in-out infinite}

  h2.headline{
    font-family:var(--mincho);
    font-weight:500;
    font-size: clamp(30px, 4.8vw, 66px);
    line-height:1.5;
    letter-spacing:.05em;
    color:var(--ink);
    margin:0 0 48px;
    max-width: 22ch;
  }
  h2.headline em{
    font-style:normal;
    color:var(--deep);
    position:relative;
    padding:0 .05em;
  }
  h2.headline em::after{
    content:"";
    position:absolute; left:0; right:0; bottom:-6px; height:1.5px;
    background:var(--water);
    animation: pulseLine 4s ease-in-out infinite;
  }

  .copy{
    max-width: 58ch;
    font-size:calc(17px * var(--text-scale)); line-height:calc(1.95 * var(--line-scale)); letter-spacing:.05em;
    color:var(--ink-2);
  }
  .copy p + p{ margin-top:1.4em }
  .copy b{
    font-weight:500;
    background:linear-gradient(to top, rgba(184,211,226,.5) 0 40%, transparent 40%);
    padding:0 .05em;
  }

  .lede{
    font-family:var(--mincho); font-weight:400;
    font-size:22px; line-height:1.8; letter-spacing:.06em;
    color:var(--ink); max-width:30ch;
    margin:0 0 36px;
  }

  /* ============ §2 why ============ */
  .why-grid{
    display:grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 80px;
    align-items:start;
  }
  .canal-illus{
    position:relative;
    aspect-ratio: 4/5;
    max-width:460px;
    margin-top:28px;
  }
  .canal-illus svg{width:100%; height:100%; display:block}
  .canal-caption{
    font-family:var(--mono); font-size:10.5px; letter-spacing:.28em;
    color:var(--ink-3); margin-top:18px;
    display:flex; justify-content:space-between;
    border-top:1px solid var(--rule); padding-top:12px;
  }

  /* ============ §3 how ============ */
  .how-axes{
    display:grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
    margin: 72px 0 0;
  }
  .axis{
    border-top:1px solid var(--rule);
    padding-top:28px;
    position:relative;
  }
  .axis .axis-num{
    font-family:var(--mono); font-size:10.5px; letter-spacing:.28em; color:var(--ink-3);
  }
  .axis .axis-title{
    font-family:var(--mincho); font-size:34px; letter-spacing:.04em;
    margin: 8px 0 4px; color:var(--ink);
    display:flex; align-items:baseline; gap:12px;
  }
  .axis .axis-title .en{
    font-family:var(--garamond); font-style:italic; font-size:16px; color:var(--ink-3); letter-spacing:.1em;
  }
  .axis .axis-body{
    font-size:calc(15.5px * var(--text-scale)); line-height:calc(1.85 * var(--line-scale)); color:var(--ink-2); margin-top:14px; max-width:34ch;
  }
  .axis .glow{
    position:absolute; top:-1px; left:0; width:48px; height:2px;
    background:var(--water);
    animation:pulseLine 4s ease-in-out infinite;
  }

  .kst{
    margin-top:96px;
    display:grid;
    grid-template-columns: 260px 1fr;
    gap: 48px;
    align-items:start;
    border-top:1px dashed var(--rule);
    padding-top:48px;
  }
  .kst h3{
    font-family:var(--mincho); font-weight:500; font-size:28px; letter-spacing:.12em;
    margin:0; color:var(--ink);
  }
  .kst h3 small{display:block; font-family:var(--mono); font-size:10.5px; letter-spacing:.3em; color:var(--ink-3); margin-top:8px}

  .kst-grid{
    display:grid; grid-template-columns:repeat(4, 1fr); gap:0;
    border-left:1px solid var(--rule);
  }
  .kst-mode{
    border-right:1px solid var(--rule); border-bottom:1px solid var(--rule); border-top:1px solid var(--rule);
    padding:22px 20px 28px;
    position:relative;
  }
  .kst-mode .glyph{
    font-family:var(--mincho); font-size:44px; color:var(--deep); line-height:1;
    display:block; margin-bottom:14px;
  }
  .kst-mode .label{
    font-family:var(--mono); font-size:10px; letter-spacing:.3em; color:var(--ink-3);
    margin-bottom:10px; text-transform:uppercase;
  }
  .kst-mode .desc{
    font-size:13.5px; line-height:1.75; color:var(--ink-2); letter-spacing:.04em;
  }
  .kst-mode::before{
    content:""; position:absolute; top:-1px; left:0; width:24px; height:1px;
    background:var(--water); animation:pulseLine 4s ease-in-out infinite;
  }

  /* ============ §4 what ============ */
  .works{
    display:grid; grid-template-columns:repeat(3, 1fr); gap:0;
    margin-top:32px;
    border-top:1px solid var(--rule);
  }
  .work{
    padding: 44px 36px 44px 0;
    border-right:1px dashed var(--rule);
    position:relative;
    display:flex; flex-direction:column; gap:18px;
  }
  .work:last-child{border-right:none; padding-right:0}
  .work:not(:first-child){ padding-left:36px }
  .work .wk-num{
    font-family:var(--mono); font-size:10.5px; letter-spacing:.3em; color:var(--ink-3);
  }
  .work .wk-title{
    font-family:var(--mincho); font-weight:500; font-size:30px; letter-spacing:.04em;
    color:var(--ink); line-height:1.35; margin:4px 0 0;
  }
  .work .wk-title .en{
    display:block; font-family:var(--garamond); font-style:italic; font-size:14px;
    color:var(--ink-3); letter-spacing:.14em; margin-top:8px;
  }
  .work .wk-gloss{
    font-size:calc(14.5px * var(--text-scale)); line-height:calc(1.8 * var(--line-scale)); color:var(--ink-2);
  }
  .work .wk-bullets{
    list-style:none; padding:0; margin:0;
    font-family:var(--mono); font-size:11.5px; letter-spacing:.12em; color:var(--ink-3);
    display:flex; flex-direction:column; gap:8px;
  }
  .work .wk-bullets li{padding-left:18px; position:relative}
  .work .wk-bullets li::before{
    content:""; position:absolute; left:0; top:10px; width:8px; height:1px; background:var(--water);
  }
  .work .wk-cta{
    margin-top:auto; display:inline-flex; gap:10px; align-items:center;
    font-family:var(--mono); font-size:11px; letter-spacing:.24em; color:var(--deep);
    border-bottom:1px solid var(--water); align-self:flex-start; padding-bottom:4px;
    text-transform:uppercase;
  }
  .work .wk-diagram{
    height:96px; width:100%;
    display:flex; align-items:center;
  }

  /* ============ §5 who ============ */
  .who{
    display:grid; grid-template-columns: 340px 1fr; gap: 72px;
    align-items:start;
  }
  .portrait{
    position:relative;
    background:var(--washi-2);
    border:1px solid var(--rule);
    overflow:hidden;
    margin:0;
  }
  .portrait img{
    display:block; width:100%; height:auto;
  }
  .who-name{
    font-family:var(--mincho); font-size:40px; letter-spacing:.08em; color:var(--ink);
    margin:0 0 4px;
  }
  .who-role{
    font-family:var(--mono); font-size:11px; letter-spacing:.3em; color:var(--ink-3);
    text-transform:uppercase; margin-bottom:36px;
  }
  .who-credo{
    font-family:var(--mincho); font-weight:500; font-size:24px; line-height:1.8; letter-spacing:.06em;
    color:var(--deep); margin:0 0 28px; max-width:26ch;
    border-left:2px solid var(--water); padding-left:22px;
  }
  .who-meta{
    display:grid; grid-template-columns:repeat(3, 1fr); gap: 18px;
    margin-top:36px; padding-top:20px; border-top:1px solid var(--rule);
    font-family:var(--mono); font-size:10.5px; letter-spacing:.22em; color:var(--ink-3);
  }
  .who-meta b{display:block; color:var(--ink); font-weight:500; margin-bottom:4px; font-family:var(--mincho); font-size:14px; letter-spacing:.1em}

  /* ============ §6 read ============ */
  .read{
    display:grid; grid-template-columns: repeat(12, 1fr); gap:32px;
    margin-top:40px;
  }
  .dispatch{
    grid-column: span 12;
    display:grid; grid-template-columns: 180px 1fr 1.1fr; gap:48px;
    padding:40px 0;
    border-top:1px solid var(--rule);
    align-items:start;
  }
  .dispatch:last-child{border-bottom:1px solid var(--rule)}
  .dispatch .dp-meta{
    font-family:var(--mono); font-size:10.5px; letter-spacing:.26em; color:var(--ink-3);
    display:flex; flex-direction:column; gap:6px;
  }
  .dispatch .dp-meta .no{
    font-family:var(--mincho); font-size:26px; color:var(--deep); letter-spacing:.04em; line-height:1;
    margin-bottom:14px;
  }
  .dispatch .dp-title{
    font-family:var(--mincho); font-weight:500; font-size:26px; line-height:1.55; letter-spacing:.06em;
    color:var(--ink); margin:0 0 14px;
  }
  .dispatch .dp-lede{
    font-size:calc(14.5px * var(--text-scale)); line-height:calc(1.85 * var(--line-scale)); color:var(--ink-2);
  }
  .dispatch .dp-quote{
    font-family:var(--mincho); font-size:calc(17px * var(--text-scale)); line-height:calc(1.95 * var(--line-scale)); letter-spacing:.06em;
    color:var(--ink); position:relative;
    padding:4px 0 4px 22px;
    border-left:1px solid var(--water);
  }
  .dispatch .dp-quote::before{ content:"「"; color:var(--water); font-size:24px; position:absolute; left:0; top:-4px; font-family:var(--mincho) }
  .dispatch .dp-quote::after{ content:"」"; color:var(--water); font-size:24px; margin-left:2px }
  .dispatch .dp-cta{
    display:inline-flex; gap:10px; margin-top:22px;
    font-family:var(--mono); font-size:11px; letter-spacing:.22em; color:var(--deep);
    border-bottom:1px solid var(--water); padding-bottom:4px;
  }

  /* ============ §7 contact ============ */
  .contact-wrap{
    display:grid; grid-template-columns: 1fr 1fr; gap:72px;
    align-items:start;
  }
  .contact-intro .lead{
    font-family:var(--mincho); font-weight:500; font-size:36px; line-height:1.65; letter-spacing:.06em;
    color:var(--ink); margin:0 0 22px;
  }
  .contact-intro p{
    font-size:calc(15.5px * var(--text-scale)); line-height:calc(1.95 * var(--line-scale)); color:var(--ink-2); margin:0 0 18px;
  }
  .contact-intro .note{
    font-family:var(--mono); font-size:11px; letter-spacing:.24em; color:var(--ink-3);
    padding:14px 16px; border:1px dashed var(--rule); margin-top:28px;
    display:flex; align-items:center; gap:12px;
  }
  .contact-intro .note::before{
    content:""; width:6px; height:6px; background:var(--water); border-radius:50%;
  }

  form.breath-form{
    display:grid; gap: 26px;
    background:var(--washi-2);
    border:1px solid var(--rule);
    padding: 36px 34px 34px;
    position:relative;
  }
  form.breath-form::before{
    content:""; position:absolute; top:-1px; left:32px; width:54px; height:2px;
    background:var(--water); animation:pulseLine 4s ease-in-out infinite;
  }
  .field{ display:flex; flex-direction:column; gap:8px; }
  .field label{
    font-family:var(--mono); font-size:10.5px; letter-spacing:.3em; color:var(--ink-3);
    text-transform:uppercase;
  }
  .field label .en{ font-family:var(--garamond); font-style:italic; text-transform:none; margin-left:8px; color:var(--ink-3) }
  .field input, .field textarea{
    font-family:var(--serif); font-size:16px; letter-spacing:.05em; line-height:1.7;
    background:transparent; color:var(--ink);
    border:none; border-bottom:1px solid var(--rule);
    padding:10px 2px; outline:none;
    transition:border-color .3s ease;
  }
  .field input:focus, .field textarea:focus{ border-color:var(--deep) }
  .field textarea{ min-height:96px; resize:vertical; border:1px solid var(--rule); padding:14px }
  .submit{
    display:inline-flex; align-items:center; justify-content:space-between;
    background:var(--ink); color:var(--washi);
    font-family:var(--mincho); font-size:18px; letter-spacing:.22em;
    padding: 18px 26px;
    border:none; cursor:pointer;
    transition: transform .3s ease, background .3s ease;
  }
  .submit:hover{ background:var(--deep) }
  .submit .arrow{ font-family:var(--mono); letter-spacing:0 }

  /* ============ footer ============ */
  footer{
    position:relative; z-index:3;
    padding: 48px var(--mx) 48px;
    border-top:1px solid var(--rule);
    display:grid; grid-template-columns: 1fr 1fr 1fr; gap:24px;
    font-family:var(--mono); font-size:10.5px; letter-spacing:.26em; color:var(--ink-3);
    align-items:end;
  }
  footer .sign{ font-family:var(--mincho); font-size:14px; letter-spacing:.22em; color:var(--ink) }
  footer .mid{ text-align:center }
  footer .r{ text-align:right }
  footer a:hover{ color:var(--deep) }

  /* ============ animations ============ */
  @keyframes pulseBreath{
    0%,100%{ transform:scale(1.000); opacity:.985 }
    50%   { transform:scale(1.004); opacity:1 }
  }
  @keyframes pulseLine{
    0%,100%{ opacity:.55; transform:scaleX(1) }
    50%   { opacity:1;   transform:scaleX(1.02) }
  }
  @keyframes pulseDot{
    0%,100%{ transform:scale(1); box-shadow:0 0 0 3px rgba(184,211,226,.3) }
    50%   { transform:scale(1.18); box-shadow:0 0 0 6px rgba(184,211,226,.06) }
  }
  @keyframes cueDrop{
    0%   { transform:translateY(-8px); opacity:.3 }
    50%  { opacity:1 }
    100% { transform:translateY(8px); opacity:.3 }
  }

  @media (prefers-reduced-motion: reduce){
    *, *::before, *::after{
      animation: none !important;
      transition: none !important;
    }
    html{scroll-behavior:auto}
  }

  /* high-contrast mode */
  body.hc{
    --ink:#0A0A0E;
    --ink-2:#2A2A30;
    --ink-3:#55555D;
    --rule:rgba(10,10,14,.26);
    --rule-2:rgba(10,10,14,.12);
  }
  body.hc.dark{
    --ink:#FFFFFF;
    --ink-2:#ECE8DD;
    --ink-3:#C6C3B8;
    --rule:rgba(237,233,222,.34);
  }

  /* ============ tweaks panel ============ */
  .tweaks{
    position:fixed; right:24px; bottom:24px; z-index:100;
    width:320px; max-width:calc(100vw - 32px);
    background:var(--washi);
    border:1px solid var(--rule);
    box-shadow: 0 12px 40px rgba(27,27,30,.12), 0 2px 6px rgba(27,27,30,.06);
    padding:18px 20px 20px;
    font-family:var(--mono); font-size:11px; letter-spacing:.18em; color:var(--ink-2);
    display:none;
    backdrop-filter:saturate(1.1);
  }
  .tweaks.open{ display:block }
  .tweaks::before{
    content:""; position:absolute; top:-1px; left:18px; width:42px; height:2px;
    background:var(--water);
  }
  .tweaks h4{
    font-family:var(--mincho); font-weight:500; font-size:15px; letter-spacing:.22em;
    color:var(--deep); margin:0 0 4px; display:flex; justify-content:space-between; align-items:center;
  }
  .tweaks .sub{
    font-family:var(--garamond); font-style:italic; font-size:11px; letter-spacing:.14em;
    color:var(--ink-3); margin-bottom:18px;
    text-transform:none;
  }
  .tw-row{
    display:flex; flex-direction:column; gap:8px;
    padding:12px 0;
    border-top:1px solid var(--rule-2);
  }
  .tw-row:first-of-type{ border-top:none; padding-top:4px }
  .tw-row .tw-label{
    display:flex; justify-content:space-between; align-items:baseline;
    text-transform:uppercase;
  }
  .tw-row .tw-label .ja{
    font-family:var(--mincho); font-size:13px; letter-spacing:.14em; color:var(--ink); text-transform:none;
  }
  .tw-row .tw-label .val{
    color:var(--deep); font-variant-numeric:tabular-nums; letter-spacing:.1em;
  }
  .tw-row input[type=range]{
    -webkit-appearance:none; appearance:none;
    width:100%; height:20px; background:transparent; cursor:pointer;
  }
  .tw-row input[type=range]::-webkit-slider-runnable-track{
    height:1px; background:var(--ink-3); opacity:.5;
  }
  .tw-row input[type=range]::-moz-range-track{
    height:1px; background:var(--ink-3); opacity:.5;
  }
  .tw-row input[type=range]::-webkit-slider-thumb{
    -webkit-appearance:none; appearance:none;
    width:14px; height:14px; border-radius:50%;
    background:var(--washi); border:1.5px solid var(--deep);
    margin-top:-7px;
  }
  .tw-row input[type=range]::-moz-range-thumb{
    width:14px; height:14px; border-radius:50%;
    background:var(--washi); border:1.5px solid var(--deep);
  }
  .tw-presets{ display:flex; gap:6px; margin-top:2px }
  .tw-presets button{
    flex:1; background:transparent; border:1px solid var(--rule);
    color:var(--ink-2); font-family:var(--mono); font-size:10px; letter-spacing:.22em;
    padding:8px 0; cursor:pointer; transition:all .2s;
  }
  .tw-presets button:hover{ border-color:var(--deep); color:var(--deep) }
  .tw-presets button.active{ background:var(--deep); color:var(--washi); border-color:var(--deep) }
  .tw-toggle{
    display:flex; justify-content:space-between; align-items:center;
    background:transparent; border:none; padding:0; width:100%;
    cursor:pointer; color:inherit; font:inherit; letter-spacing:inherit;
  }
  .tw-toggle .tw-switch{
    width:34px; height:18px; border-radius:10px;
    background:var(--rule); position:relative; transition:background .25s;
  }
  .tw-toggle .tw-switch::after{
    content:""; position:absolute; top:2px; left:2px;
    width:14px; height:14px; border-radius:50%;
    background:var(--washi); border:1px solid var(--ink-3);
    transition:transform .25s;
  }
  .tw-toggle.on .tw-switch{ background:var(--deep) }
  .tw-toggle.on .tw-switch::after{ transform:translateX(16px); border-color:var(--deep) }
  .tw-reset{
    width:100%; margin-top:14px;
    background:transparent; border:1px dashed var(--rule);
    color:var(--ink-3); padding:10px;
    font-family:var(--mono); font-size:10px; letter-spacing:.26em; cursor:pointer;
    transition:all .2s;
  }
  .tw-reset:hover{ border-color:var(--deep); color:var(--deep) }

  @media (max-width:520px){
    .tweaks{ left:16px; right:16px; width:auto; bottom:16px }
  }

  /* ============ responsive ============ */
  @media (max-width: 980px){
    :root{ --mx: 28px }
    body{font-size:calc(16px * var(--text-scale))}
    .chrome{padding:16px 28px}
    .section{grid-template-columns:1fr; gap:24px; padding:100px 28px 120px; min-height:auto}
    .rail{position:static; flex-direction:row; gap:24px; align-items:center}
    .rail .rail-v{writing-mode:horizontal-tb; border-left:none; border-top:1px solid var(--rule); padding:8px 0 0; height:auto; width:140px}
    .why-grid{grid-template-columns:1fr; gap:56px}
    .canal-illus{max-width:380px}
    .how-axes{grid-template-columns:1fr; gap:24px}
    .kst{grid-template-columns:1fr; gap:24px}
    .kst-grid{grid-template-columns:repeat(2,1fr)}
    .works{grid-template-columns:1fr; border-top:none}
    .work{border-right:none; border-top:1px solid var(--rule); padding:36px 0 !important}
    .who{grid-template-columns:1fr; gap:36px}
    .portrait{max-width:280px}
    .dispatch{grid-template-columns:1fr; gap:18px; padding:32px 0}
    .contact-wrap{grid-template-columns:1fr; gap:40px}
    footer{grid-template-columns:1fr; text-align:left; gap:14px}
    footer .mid, footer .r{text-align:left}
    .fv-footer{grid-template-columns:1fr; text-align:center}
    .fv-footer .meta-l, .fv-footer .meta-r{text-align:center}
    .who-meta{grid-template-columns:1fr 1fr}
  }
  @media (max-width: 520px){
    .kst-grid{grid-template-columns:1fr}
    .who-meta{grid-template-columns:1fr}
    .kn-text small{display:none}
  }

/* ============ who-name english annotation (extracted from inline style) ============ */
.who-name-en {
  font-family: var(--garamond);
  font-style: italic;
  font-size: 22px;
  letter-spacing: .14em;
  color: var(--ink-3);
  margin-left: 16px;
}

/* ============ wk-cta / dp-cta (disabled state) ============ */
.wk-cta.is-disabled, .dp-cta.is-disabled {
  cursor: not-allowed;
  opacity: .55;
  border-bottom-color: var(--rule);
  color: var(--ink-3);
}
.wk-cta.is-disabled:hover, .dp-cta.is-disabled:hover {
  color: var(--ink-3);
}

/* ============ contact-wrap 3-region (intro / form / phone) ============ */
.contact-wrap {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  grid-template-areas:
    "intro form"
    "phone form";
  gap: 40px 72px;
}
.contact-intro { grid-area: intro; }
form.breath-form { grid-area: form; }
.contact-phone {
  grid-area: phone;
  padding: 28px 30px;
  border-top: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 14px;
}
.contact-phone .phone-label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .3em;
  color: var(--ink-3); text-transform: uppercase;
  display: flex; gap: 10px; align-items: baseline;
}
.contact-phone .phone-label .ja {
  font-family: var(--mincho); font-size: 13px; letter-spacing: .14em;
  color: var(--ink); text-transform: none;
}
.contact-phone .phone-number {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mincho); font-size: 26px; letter-spacing: .06em;
  color: var(--deep);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--water);
  align-self: flex-start;
}
.contact-phone .phone-number:hover { color: var(--ink); }
.contact-phone .phone-number .icon { font-size: 20px; }
.contact-phone .phone-note {
  font-size: 13px; line-height: 1.8; color: var(--ink-2);
  letter-spacing: .04em;
}

/* ============ form status / turnstile ============ */
.cf-turnstile {
  margin-top: 4px;
}
.cf-status {
  font-family: var(--mono); font-size: 11px; letter-spacing: .16em;
  color: var(--ink-3);
  min-height: 18px;
  margin-top: -8px;
}
.cf-status.is-success { color: var(--deep); }
.cf-status.is-error { color: #B14C4C; }
form.breath-form.is-submitting .submit { opacity: .55; cursor: wait; }

@media (max-width: 980px) {
  .contact-wrap {
    grid-template-columns: 1fr;
    grid-template-areas:
      "intro"
      "form"
      "phone";
    gap: 40px;
  }
}

/* ============ legal pages (asct-notation, etc.) ============ */
.legal {
  position: relative; z-index: 3;
  padding: 160px var(--mx) 100px;
  min-height: 100vh;
}
.legal-wrap {
  max-width: 720px;
  margin: 0 auto;
}
.legal-title {
  font-family: var(--mincho);
  font-weight: 500;
  font-size: clamp(30px, 4.2vw, 56px);
  line-height: 1.5;
  letter-spacing: .06em;
  color: var(--ink);
  margin: 0 0 56px;
}
.legal-dl {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.legal-dl dt {
  font-family: var(--mincho);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: .14em;
  color: var(--deep);
  margin: 36px 0 12px;
  padding-top: 28px;
  border-top: 1px solid var(--rule-2);
}
.legal-dl dt:first-of-type {
  border-top: none;
  padding-top: 28px;
  margin-top: 28px;
}
.legal-dl dd {
  margin: 0 0 8px;
  font-size: calc(15px * var(--text-scale));
  line-height: calc(1.95 * var(--line-scale));
  color: var(--ink-2);
  letter-spacing: .05em;
}
.legal-dl dd a {
  color: var(--deep);
  border-bottom: 1px solid var(--water);
}
.legal-dl dd a:hover {
  color: var(--ink);
}
.legal-note {
  display: inline-block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--ink-3);
}
.legal-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.legal-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 6px;
}
.legal-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--water);
}
.legal-back {
  display: inline-block;
  margin-top: 72px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--deep);
  border-bottom: 1px solid var(--water);
  padding-bottom: 4px;
}
.legal-back:hover {
  color: var(--ink);
}

@media (max-width: 980px) {
  .legal {
    padding: 120px 28px 80px;
  }
}

/* ============ footer extended links ============ */
footer .legal-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}
footer .legal-links a {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
}
footer .legal-links a:hover {
  color: var(--deep);
  border-bottom-color: var(--water);
}
footer .legal-links .sep {
  color: var(--ink-3);
  opacity: .5;
}
@media (max-width: 980px) {
  footer .legal-links {
    gap: 14px;
  }
}