[hidden] {
    display: none !important;
  }

  :root{
    --ink:#1B1E24;
    --ink-soft:#3C414C;
	--ink-soft-faq:#aaa;
    --paper:#EFEBDD;
    --paper-high:#F8F6EF;
    --amber:#D9A441;
    --brick:#B14B32;
    --green:#4C7A5E;
    --line:rgba(27,30,36,0.14);
    --line-light:rgba(248,246,239,0.18);
    --radius-key:6px;
    --font-display:'Space Mono', ui-monospace, monospace;
    --font-body:'Inter', system-ui, -apple-system, sans-serif;
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-body);
    color:var(--ink);
    background:var(--paper-high);
    line-height:1.6;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;}
  h1,h2,h3{
    font-family:var(--font-display);
    line-height:1.15;
    margin:0 0 0.5em 0;
    letter-spacing:-0.01em;
  }
  p{margin:0 0 1em 0;}
  .container{
    max-width:1080px;
    margin:0 auto;
    padding:0 24px;
  }
  .measure{max-width:68ch;}

  :focus-visible{
    outline:3px solid var(--amber);
    outline-offset:2px;
  }

  /* ---------- Header ---------- */
  header.site{
    background:var(--ink);
    color:var(--paper-high);
    padding:18px 0;
    border-bottom:4px solid var(--amber);
  }
  header.site .container{
    display:flex;
    align-items:center;
    justify-content:space-between;
  }
  .logo{
    font-family:var(--font-display);
    font-weight:700;
    font-size:1.25rem;
    color:var(--paper-high);
    text-decoration:none;
  }
  .logo span{color:var(--amber);}
  nav.site-nav a{
    text-decoration:none;
    color:var(--paper-high);
    font-size:0.92rem;
    margin-left:28px;
    opacity:0.85;
  }
  nav.site-nav a:hover{opacity:1;}
  @media (max-width:640px){
    nav.site-nav{display:none;}
  }

  /* ---------- Hero ---------- */
  .hero{
    background:var(--ink);
    color:var(--paper-high);
    padding:72px 0 64px;
  }
  .hero .container{
    display:grid;
    grid-template-columns:1.15fr 0.85fr;
    gap:48px;
    align-items:center;
  }
  @media (max-width:860px){
    .hero .container{grid-template-columns:1fr;}
  }
  .eyebrow-line{
    color:var(--amber);
    font-family:var(--font-display);
    font-size:0.85rem;
    margin-bottom:14px;
  }
  .hero h1{
    font-size:clamp(2rem, 4.2vw, 3.1rem);
    color:var(--paper-high);
  }
  .type-cursor{
    display:inline-block;
    width:0.55em;
    height:1em;
    background:var(--amber);
    margin-left:4px;
    vertical-align:-0.12em;
    animation:blink 1s steps(1) infinite;
  }
  @keyframes blink{50%{opacity:0;}}
  @media (prefers-reduced-motion: reduce){
    .type-cursor{animation:none;}
  }
  .hero p.lead{
    color:#C9CCD3;
    font-size:1.08rem;
    max-width:52ch;
  }
  .hero-ctas{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-top:28px;
  }
  .btn{
    display:inline-block;
    font-family:var(--font-body);
    font-weight:600;
    font-size:0.98rem;
    padding:14px 26px;
    border-radius:var(--radius-key);
    text-decoration:none;
    border:2px solid transparent;
    cursor:pointer;
  }
  .btn-primary{
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.75rem;
    background:var(--amber);
    color:var(--ink);
    border-bottom:4px solid #A87A26;
  }
  .btn-primary:hover{background:#E4B25C;}

  .btn-ghost{
    background:transparent;
    color:var(--paper-high);
    border:2px solid var(--line-light);
  }
  .btn-ghost:hover{border-color:var(--amber);color:var(--amber);}

  .hero-panel{
    background:var(--paper-high);
    color:var(--ink);
    border-radius:8px;
    padding:26px;
    border-bottom:6px solid var(--amber);
  }
  .hero-panel .stat-row{
    display:flex;
    justify-content:space-between;
    padding:12px 0;
    border-bottom:1px solid var(--line);
    font-size:0.95rem;
  }
  .hero-panel .stat-row:last-child{border-bottom:none;}
  .hero-panel .stat-row strong{
    font-family:var(--font-display);
    color:var(--brick);
  }


  /* ---------- Section shell ---------- */
  section{
    padding:64px 0;
  }
  section.on-ink{
    background:var(--ink);
    color:var(--paper-high);
  }
  section.on-ink .section-kicker{color:var(--amber);}
  .section-head{
    max-width:60ch;
    margin-bottom:40px;
  }
  .section-kicker{
    font-family:var(--font-display);
    font-size:0.85rem;
    color:var(--brick);
    margin-bottom:10px;
  }
  section h2{
    font-size:clamp(1.5rem, 3vw, 2.1rem);
  }

  /* ---------- Keycap benefit grid ---------- */
  .keycap-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:20px;
  }
  @media (max-width:860px){
    .keycap-grid{grid-template-columns:repeat(2, 1fr);}
  }
  @media (max-width:560px){
    .keycap-grid{grid-template-columns:1fr;}
  }
  .keycap{
    background:var(--paper-high);
    border:1px solid var(--line);
    border-bottom:5px solid var(--ink);
    border-radius:var(--radius-key);
    padding:24px 22px;
  }
  .keycap:nth-child(3n+1){border-bottom-color:var(--amber);}
  .keycap:nth-child(3n+2){border-bottom-color:var(--brick);}
  .keycap:nth-child(3n+3){border-bottom-color:var(--green);}
  .keycap .key-letter{
    font-family:var(--font-display);
    font-weight:700;
    font-size:1.4rem;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border:1px solid var(--line);
    border-radius:4px;
    margin-bottom:14px;
  }
  .keycap h3{
    font-family:var(--font-body);
    font-size:1.08rem;
    font-weight:700;
    margin-bottom:8px;
  }
  .keycap p{
    font-size:0.95rem;
    color:var(--ink-soft);
    margin:0;
  }

  /* ---------- Lesson stages (sequence — numbering justified) ---------- */
  .stage-list{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:0;
    border-top:1px solid var(--line-light);
  }
  @media (max-width:760px){
    .stage-list{grid-template-columns:1fr;}
  }
  .stage{
    padding:26px 20px;
    border-bottom:1px solid var(--line-light);
    border-right:1px solid var(--line-light);
  }
  .stage:nth-child(4n){border-right:none;}
  @media (max-width:760px){
    .stage{border-right:none;}
  }
  .stage .stage-num{
    font-family:var(--font-display);
    color:var(--amber);
    font-size:0.85rem;
    display:block;
    margin-bottom:10px;
  }
  .stage h3{
    font-family:var(--font-body);
    font-size:1.02rem;
    color:var(--paper-high);
    margin-bottom:6px;
  }
  .stage p{
    font-size:0.9rem;
    color:#B7BBC3;
    margin:0;
  }

  /* ---------- Audience list ---------- */
  .audience-list{
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:16px;
  }
  @media (max-width:640px){
    .audience-list{grid-template-columns:1fr;}
  }
  .audience-item{
    display:flex;
    gap:14px;
    padding:18px 0;
    border-bottom:1px solid var(--line);
  }
  .audience-item .dot{
    flex-shrink:0;
    width:10px;
    height:10px;
    border-radius:50%;
    background:var(--brick);
    margin-top:8px;
  }
  .audience-item h3{
    font-family:var(--font-body);
    font-size:1.02rem;
    margin-bottom:4px;
  }
  .audience-item p{margin:0;font-size:0.94rem;color:var(--ink-soft);}

  /* ---------- Comparison table ---------- */
  table.compare{
    width:100%;
    border-collapse:collapse;
    background:var(--paper-high);
    font-size:0.94rem;
  }
  table.compare th, table.compare td{
    text-align:left;
    padding:14px 16px;
    border-bottom:1px solid var(--line);
	color:var(--ink);
  }
  table.compare th{
    font-family:var(--font-display);
    font-size:0.82rem;
    color:var(--ink-soft);
    font-weight:400;
  }
  table.compare td.yes{color:var(--green);font-weight:600;}
  table.compare tr:last-child td{border-bottom:none;}
  .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px;}

  /* ---------- FAQ ---------- */
  .faq-item{
    border-bottom:1px solid var(--line);
    padding:18px 0;
  }
  .faq-item summary{
    cursor:pointer;
    font-weight:600;
    font-size:1.02rem;
    list-style:none;
    display:flex;
    justify-content:space-between;
    align-items:center;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";
    font-family:var(--font-display);
    font-size:1.3rem;
    color:var(--brick);
    margin-left:16px;
  }
  .faq-item[open] summary::after{content:"–";}
  .faq-item p{
    margin-top:12px;
    color:var(--ink-soft-faq);
    font-size:0.96rem;
  }

  /* ---------- Final CTA ---------- */
  .cta-block{
    background:var(--amber);
    color:var(--ink);
    padding:56px 0;
    text-align:center;
  }
  .cta-block h2{color:var(--ink);}
  .cta-block .btn-primary{
    background:var(--ink);
    color:var(--paper-high);
    border-bottom:4px solid #000;
  }
  .cta-block .btn-primary:hover{background:#2A2E36;}

  /* ---------- Footer ---------- */
  footer.site{
    background:var(--ink);
    color:#9DA1AA;
    padding:36px 0;
    font-size:0.85rem;
  }
  footer.site a{color:#C9CCD3;text-decoration:underline;}
  footer.site .container{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:12px;
  }