:root{
    --ink:#0A0A0A;
    --paper:#FFFFFF;
    --grey-1:#8C8C8C;
    --grey-2:#5E5E5E;
    --rule:#242424;
    --rule-light:#E4E4E4;
    --accent:#E8541F;
    --measure:34rem;
    --pad:clamp(1.5rem, 5vw, 5.5rem);
  }
  *{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--ink);
    color:var(--paper);
    font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;
    font-size:17px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    font-feature-settings:"kern" 1;
  }
  a{color:inherit;}
  a:not([href]){cursor:pointer;}
  a:focus-visible,button:focus-visible{outline:1px solid currentColor;outline-offset:3px;}

  /* ---------- structural ---------- */
  .wrap{max-width:78rem;margin:0 auto;padding:0 var(--pad);}
  section{border-top:1px solid var(--rule);}
  section:first-of-type{border-top:0;}
  .band{padding:clamp(4rem,9vw,8rem) 0;}
  .light{background:var(--paper);color:var(--ink);border-top-color:var(--rule-light);}
  .light .meta,.light .note{color:var(--grey-2);}
  .light .rule{background:var(--rule-light);}

  /* ---------- type ---------- */
  h1,h2,h3,h4{font-weight:600;margin:0;letter-spacing:-0.02em;}
  h1{font-size:clamp(2.1rem,5.2vw,3.5rem);line-height:1.12;letter-spacing:-0.03em;}
  h2{font-size:clamp(1.5rem,3vw,2.05rem);line-height:1.2;}
  h3{font-size:1.06rem;line-height:1.35;letter-spacing:-0.01em;}
  p{margin:0 0 1.1em;max-width:var(--measure);}
  .lede{font-size:clamp(1.12rem,1.9vw,1.32rem);line-height:1.5;color:#D8D8D8;max-width:38rem;}
  .light .lede{color:var(--grey-2);}
  .meta{
    font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;
    color:var(--grey-1);margin:0 0 2.2rem;font-weight:500;
  }
  .note{font-size:0.83rem;line-height:1.55;color:var(--grey-1);max-width:30rem;}
  .rule{height:1px;background:var(--rule);border:0;margin:0;}

  /* ---------- nav ---------- */
  nav{
    display:flex;align-items:center;justify-content:space-between;
    padding:1.5rem 0 1.4rem;font-size:0.83rem;
  }
  .mark{display:flex;align-items:center;}
  .mark img{height:1.45rem;width:auto;display:block;}
  .mark a{display:block;line-height:0;}
  .icon{height:1.6rem;width:1.6rem;border-radius:4px;display:block;}
  .navlinks{display:flex;gap:2rem;color:var(--grey-1);}
  .navlinks a{text-decoration:none;}
  .navlinks a:hover{color:var(--paper);}
  .navlinks a[data-compact]{display:none;}
  @media(max-width:760px){
    .navlinks{gap:1.25rem;font-size:0.78rem;}
    .navlinks a{display:none;}
    .navlinks a[data-compact]{display:inline;}
  }
  p,h1,h2,h3,li,dd{overflow-wrap:break-word;}

  /* ---------- hero ---------- */
  .hero{padding:clamp(5rem,13vw,10rem) 0 clamp(4rem,8vw,6.5rem);}
  .hero h1{max-width:19ch;}
  .hero .lede{margin-top:1.6rem;}
  .cta{display:flex;gap:2rem;align-items:center;margin-top:2.8rem;flex-wrap:wrap;}
  .btn{
    display:inline-block;background:var(--paper);color:var(--ink);
    text-decoration:none;padding:0.82rem 1.5rem;border-radius:2px;
    font-size:0.9rem;font-weight:600;letter-spacing:-0.005em;
  }
  .btn:hover{background:#E2E2E2;}
  .textlink{font-size:0.9rem;color:var(--grey-1);text-decoration:none;border-bottom:1px solid var(--rule);padding-bottom:2px;}
  .textlink:hover{color:var(--paper);border-color:var(--grey-1);}
  .label{margin-top:clamp(4rem,8vw,6.5rem);font-size:0.9rem;color:var(--grey-1);}

  /* ---------- grids ---------- */
  .cols{display:grid;gap:clamp(2rem,4vw,3.5rem);}
  .c2{grid-template-columns:repeat(2,1fr);}
  .c3{grid-template-columns:repeat(3,1fr);}
  .c4{grid-template-columns:repeat(4,1fr);}
  .sidenote{grid-template-columns:minmax(0,1fr) 15rem;gap:clamp(2rem,5vw,4.5rem);}
  @media(max-width:900px){.c3,.c4{grid-template-columns:repeat(2,1fr);}.sidenote{grid-template-columns:1fr;}}
  @media(max-width:600px){.c2,.c3,.c4{grid-template-columns:1fr;}}

  /* ---------- constraint entries ---------- */
  .entry{border-top:1px solid var(--rule);padding:1.7rem 0 0;}
  .light .entry{border-top-color:var(--rule-light);}
  .entry .num{font-size:0.66rem;letter-spacing:0.14em;color:var(--grey-1);display:block;margin-bottom:0.85rem;}
  .entry p{font-size:0.94rem;color:#C4C4C4;margin:0.6rem 0 0;max-width:26rem;}
  .light .entry p{color:var(--grey-2);}
  .entry .tag{
    display:inline-block;margin-top:1rem;font-size:0.66rem;letter-spacing:0.12em;
    text-transform:uppercase;color:var(--grey-1);
  }

  /* ---------- evidence layer ---------- */
  .fig{border-top:1px solid var(--rule);padding-top:1.4rem;}
  .light .fig{border-top-color:var(--rule-light);}
  .fig .n{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:600;letter-spacing:-0.03em;line-height:1;display:block;}
  .fig .cap{font-size:0.85rem;color:var(--grey-1);margin-top:0.7rem;max-width:17rem;line-height:1.5;}
  .light .fig .cap{color:var(--grey-2);}
  .src{
    font-size:0.7rem;color:#6A6A6A;margin-top:0.9rem;line-height:1.5;max-width:17rem;
    padding-top:0.55rem;border-top:1px solid var(--rule);
  }
  .light .src{color:#8A8A8A;border-top-color:var(--rule-light);}

  /* ---------- diagnostic spec table ---------- */
  .spec{border-top:1px solid var(--rule);margin-top:2.6rem;}
  .light .spec{border-top-color:var(--rule-light);}
  .spec .row{
    display:grid;grid-template-columns:11rem 1fr;gap:1.5rem;
    padding:1.15rem 0;border-bottom:1px solid var(--rule);
  }
  .light .spec .row{border-bottom-color:var(--rule-light);}
  .spec dt{font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--grey-1);}
  .spec dd{margin:0;font-size:0.96rem;max-width:36rem;}
  @media(max-width:620px){.spec .row{grid-template-columns:1fr;gap:0.4rem;}}

  /* ---------- case ---------- */
  .case h3{font-size:1.24rem;margin-bottom:0.9rem;}
  .case p{font-size:0.96rem;color:#C4C4C4;max-width:30rem;}
  .light .case p{color:var(--grey-2);}
  .pull{font-size:clamp(1.25rem,2.6vw,1.75rem);line-height:1.32;letter-spacing:-0.02em;max-width:26ch;font-weight:600;}

  /* ---------- close ---------- */
  .close{padding:clamp(5rem,11vw,9rem) 0;}
  .close p{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.28;letter-spacing:-0.025em;font-weight:600;max-width:20ch;margin:0;}
  .close .second{color:var(--grey-1);}

  footer{border-top:1px solid var(--rule);padding:2.6rem 0 3.2rem;font-size:0.8rem;color:var(--grey-1);}
  .footrow{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;}
  footer a{text-decoration:none;}
  footer a:hover{color:var(--paper);}


  /* ---------- booking page ---------- */
  .steps{counter-reset:s;}
  .step{display:grid;grid-template-columns:3.2rem 1fr;gap:1.6rem;padding:1.6rem 0;border-top:1px solid var(--rule);}
  .light .step{border-top-color:var(--rule-light);}
  .step .wk{font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--grey-1);padding-top:0.3rem;}
  .step p{font-size:0.94rem;color:#C4C4C4;margin:0.45rem 0 0;max-width:34rem;}
  .light .step p{color:var(--grey-2);}
  @media(max-width:620px){.step{grid-template-columns:1fr;gap:0.3rem;}}

  .checks{border-top:1px solid var(--rule-light);}
  .checkgrp{padding:2rem 0;border-bottom:1px solid var(--rule-light);}
  .checkgrp h3{margin-bottom:1rem;}
  .checkgrp ol{margin:0;padding-left:1.15rem;max-width:44rem;}
  .checkgrp li{font-size:0.94rem;color:var(--grey-2);margin-bottom:0.5rem;line-height:1.5;}
  .checkgrp .ord{font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;color:#9A9A9A;display:block;margin-bottom:0.7rem;}

  form{max-width:38rem;margin-top:2.4rem;}
  .field{margin-bottom:1.5rem;}
  label{display:block;font-size:0.72rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--grey-1);margin-bottom:0.55rem;}
  input,textarea,select{
    width:100%;background:transparent;border:0;border-bottom:1px solid var(--rule);
    color:var(--paper);font:inherit;font-size:0.96rem;padding:0.55rem 0;border-radius:0;
  }
  textarea{min-height:5.5rem;resize:vertical;}
  input:focus,textarea:focus,select:focus{outline:none;border-bottom-color:var(--paper);}
  select option{background:#111;color:#fff;}
  button.submit{
    background:var(--paper);color:var(--ink);border:0;border-radius:2px;
    font:inherit;font-size:0.9rem;font-weight:600;padding:0.85rem 1.6rem;cursor:pointer;margin-top:0.6rem;
  }
  .formnote{font-size:0.78rem;color:var(--grey-1);margin-top:1.2rem;max-width:32rem;line-height:1.55;}

/* ---------- writing ---------- */
.piece{display:block;border-top:1px solid var(--rule);padding:2.2rem 0;text-decoration:none;color:inherit;}
.piece:last-child{border-bottom:1px solid var(--rule);}
.piece h2{font-size:clamp(1.3rem,2.4vw,1.75rem);margin:0.7rem 0 0;max-width:26ch;}
.piece p{font-size:0.98rem;color:#B4B4B4;margin:0.9rem 0 0;max-width:40rem;}
.piece .pdate{font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--grey-1);}
.piece .more{display:inline-block;margin-top:1.1rem;font-size:0.85rem;color:var(--grey-1);}
a.piece:hover h2{text-decoration:underline;text-underline-offset:4px;}
a.piece:hover .more{color:var(--paper);}
/* ---------- article ---------- */
.article{max-width:38rem;}
.article p{font-size:1.06rem;line-height:1.72;color:#DADADA;max-width:38rem;margin:0 0 1.35em;}
.article p.first{font-size:1.2rem;color:#fff;}
.article h2{font-size:1.5rem;margin:2.6rem 0 1.1rem;}
.article a{color:#fff;border-bottom:1px solid var(--rule);text-decoration:none;}
.article a:hover{border-bottom-color:var(--paper);}
.article strong{color:#fff;}
.pull-q{font-size:1.35rem !important;line-height:1.4 !important;color:#fff !important;font-weight:600;
        border-left:2px solid var(--rule);padding-left:1.4rem;margin:2rem 0 !important;}
.endnote{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--rule);}
.endnote p{font-size:0.92rem;color:var(--grey-1);}
.entry h3 a{color:inherit;text-decoration:none;border-bottom:1px solid var(--rule-light);}
.formstatus{font-size:0.85rem;color:var(--grey-1);margin:0.9rem 0 0;min-height:1.2em;}

/* ---------- personal page ---------- */
.portrait{width:100%;max-width:17rem;height:auto;display:block;border-radius:2px;}
.portrait-ph{width:100%;max-width:16rem;aspect-ratio:4/5;border:1px dashed var(--rule);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:0.7rem;letter-spacing:0.12em;text-transform:uppercase;color:#4A4A4A;padding:1rem;}
.social{display:grid;grid-template-columns:1fr;gap:0;margin-top:1.5rem;max-width:32rem;}
.social a{display:flex;align-items:baseline;gap:1rem;padding:0.95rem 0;
  border-top:1px solid var(--rule);text-decoration:none;color:inherit;}
.social a:last-child{border-bottom:1px solid var(--rule);}
.social .plat{font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--grey-1);min-width:8.5rem;}
.social .handle{font-size:1rem;font-weight:600;}
.social a:hover .handle{text-decoration:underline;text-underline-offset:4px;}
.social a:hover .plat{color:var(--paper);}
.vision p{font-size:1.12rem;line-height:1.65;color:#DADADA;max-width:34rem;}
.vision p strong{color:#fff;}