:root{
    --ink:#101216;
    --panel:#191c22;
    --panel-2:#20242c;
    --line:rgba(255,255,255,0.09);
    --line-strong:rgba(255,255,255,0.16);
    --paper:#F2EFE7;
    --muted:#9AA1AC;
    --muted-dim:#6b717c;
    --amber:#22D3EE;
    --amber-dim:#0f3a40;
    --ice:#9B8CFB;
    --ice-dim:#2b2350;
    --radius:10px;
    --maxw:1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }
  body{
    margin:0;
    background:var(--ink);
    color:var(--paper);
    font-family:'Inter',system-ui,sans-serif;
    -webkit-font-smoothing:antialiased;
    line-height:1.55;
  }
  h1,h2,h3{
    font-family:'Big Shoulders Display',sans-serif;
    text-transform:uppercase;
    letter-spacing:0.01em;
    margin:0;
    font-weight:800;
    line-height:0.98;
  }
  .mono{
    font-family:'IBM Plex Mono',monospace;
    letter-spacing:0.04em;
  }
  a{color:inherit;}
  img{max-width:100%;display:block;}
  .wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px;}
  .eyebrow{
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    letter-spacing:0.18em;
    text-transform:uppercase;
    color:var(--amber);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .eyebrow::before{
    content:"";
    width:18px;height:1px;background:var(--amber);
    display:inline-block;
  }
  :focus-visible{
    outline:2px solid var(--amber);
    outline-offset:3px;
  }

  /* ---------- top bar ---------- */
  header.site{
    position:sticky; top:0; z-index:50;
    background:rgba(16,18,22,0.92);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .topbar{
    display:flex; align-items:center; gap:24px;
    padding:14px 24px;
    max-width:var(--maxw); margin:0 auto;
  }
  .brandmark{
    display:flex; flex-direction:column; line-height:1;
    text-decoration:none;
    flex-shrink:0;
  }
  .brandmark .l1{font-family:'Big Shoulders Display',sans-serif; font-weight:800; font-size:19px; letter-spacing:0.02em;}
  .brandmark .l2{font-family:'IBM Plex Mono',monospace; font-size:9px; letter-spacing:0.22em; color:var(--amber); margin-top:2px;}

  /* preset strip = the site nav, restyled as radio station presets */
  .preset-strip{
    display:flex; gap:6px; overflow-x:auto;
    scrollbar-width:thin;
    padding:2px 2px 6px;
    flex:1;
    mask-image:linear-gradient(to right, transparent 0, black 16px, black calc(100% - 16px), transparent 100%);
  }
  .preset-strip::-webkit-scrollbar{height:4px;}
  .preset-strip::-webkit-scrollbar-thumb{background:var(--line-strong); border-radius:4px;}
  .preset-btn{
    font-family:'IBM Plex Mono',monospace;
    font-size:11px;
    letter-spacing:0.06em;
    white-space:nowrap;
    color:var(--muted);
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:6px;
    padding:7px 11px;
    text-decoration:none;
    flex-shrink:0;
    transition:all .15s ease;
  }
  .preset-btn:hover, .preset-btn:focus-visible{
    color:var(--ink);
    background:var(--amber);
    border-color:var(--amber);
    box-shadow:0 0 0 3px var(--amber-dim);
  }
  .preset-btn.home{color:var(--paper); border-color:var(--line-strong);}
  .preset-btn.active-make{
    color:var(--ink); background:var(--paper); border-color:var(--paper);
  }
  .wa-pill{
    flex-shrink:0;
    display:flex; align-items:center; gap:8px;
    background:#25D366;
    color:#08210f;
    font-weight:700;
    font-size:13px;
    padding:9px 16px;
    border-radius:999px;
    text-decoration:none;
    transition:transform .15s ease, box-shadow .15s ease;
  }
  .wa-pill:hover{transform:translateY(-1px); box-shadow:0 6px 18px rgba(37,211,102,0.35);}
  .wa-pill svg{width:16px;height:16px;}

  /* ---------- hero ---------- */
  .hero{
    padding:76px 0 64px;
    background:
      radial-gradient(600px 300px at 85% -10%, rgba(34,211,238,0.13), transparent 60%),
      radial-gradient(500px 260px at -5% 110%, rgba(111,183,255,0.10), transparent 60%);
    border-bottom:1px solid var(--line);
  }
  .hero-grid{
    display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; align-items:center;
  }
  .hero h1{font-size:clamp(38px,5.6vw,68px);}
  .hero h1 .hl{color:var(--amber);}
  .hero p.lead{
    color:var(--muted); font-size:17px; max-width:46ch; margin:20px 0 28px;
  }
  .hero-ctas{display:flex; gap:12px; flex-wrap:wrap;}
  .btn{
    font-weight:600; font-size:14px;
    padding:13px 22px; border-radius:8px;
    text-decoration:none; display:inline-flex; align-items:center; gap:8px;
    transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  }
  .btn-primary{background:var(--amber); color:#062226;}
  .btn-primary:hover{transform:translateY(-1px); box-shadow:0 8px 22px rgba(34,211,238,0.28);}
  .btn-ghost{background:transparent; border:1px solid var(--line-strong); color:var(--paper);}
  .btn-ghost:hover{border-color:var(--ice); color:var(--ice);}

  /* head unit mock */
  .headunit{
    background:linear-gradient(180deg,#1c1f26,#14161b);
    border:1px solid var(--line-strong);
    border-radius:16px;
    padding:16px;
    box-shadow:0 30px 60px -20px rgba(0,0,0,0.6);
  }
  .screen{
    background:#0b0d10;
    border-radius:9px;
    aspect-ratio:16/10;
    padding:18px;
    display:flex; flex-direction:column; justify-content:space-between;
    border:1px solid rgba(255,255,255,0.06);
    position:relative;
    overflow:hidden;
  }
  .screen::after{
    content:""; position:absolute; inset:0;
    background:repeating-linear-gradient(180deg, rgba(255,255,255,0.015) 0 1px, transparent 1px 3px);
    pointer-events:none;
  }
  .screen-top{display:flex; justify-content:space-between; align-items:center;}
  .signal-arcs{display:flex; gap:4px; align-items:flex-end;}
  .signal-arcs span{
    display:block; width:4px; background:var(--amber); border-radius:2px;
    animation:pulse 1.6s ease-in-out infinite;
  }
  .signal-arcs span:nth-child(1){height:6px; animation-delay:0s;}
  .signal-arcs span:nth-child(2){height:10px; animation-delay:.15s;}
  .signal-arcs span:nth-child(3){height:14px; animation-delay:.3s;}
  .signal-arcs span:nth-child(4){height:18px; animation-delay:.45s;}
  @keyframes pulse{0%,100%{opacity:.4;} 50%{opacity:1;}}
  .screen-mid{display:flex; gap:10px;}
  .app-tile{
    flex:1; border-radius:7px; padding:12px 10px; font-family:'IBM Plex Mono',monospace; font-size:10px;
    letter-spacing:0.05em; color:var(--muted);
  }
  .app-tile.aa{background:var(--amber-dim); color:#c9f7fc;}
  .app-tile.cp{background:var(--ice-dim); color:#bfe0ff;}
  .app-tile b{display:block; font-size:12px; color:inherit; margin-bottom:4px; font-family:'Big Shoulders Display',sans-serif; letter-spacing:0.02em;}
  .screen-bottom{
    font-family:'IBM Plex Mono',monospace; font-size:9px; color:var(--muted-dim); letter-spacing:0.08em;
    display:flex; justify-content:space-between;
  }
  .hu-caption{
    display:flex; justify-content:space-between; align-items:center;
    margin-top:12px; padding:0 4px;
    font-family:'IBM Plex Mono',monospace; font-size:10px; color:var(--muted-dim); letter-spacing:0.08em;
  }

  section{padding:72px 0;}
  .section-head{max-width:640px; margin-bottom:40px;}
  .section-head h2{font-size:clamp(28px,3.6vw,42px); margin-top:14px;}
  .section-head p{color:var(--muted); margin-top:14px; font-size:15.5px;}

  /* need to know */
  .notice{
    background:var(--panel);
    border:1px solid var(--line);
    border-left:3px solid var(--amber);
    border-radius:0 var(--radius) var(--radius) 0;
    padding:28px 32px;
    display:grid; grid-template-columns:auto 1fr; gap:24px; align-items:start;
  }
  .notice .tag{
    font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:0.12em; color:var(--amber);
    border:1px solid var(--amber-dim); border-radius:6px; padding:5px 10px; white-space:nowrap;
  }
  .notice ul{margin:0; padding-left:18px; color:var(--muted); font-size:15px;}
  .notice li{margin-bottom:10px;}
  .notice li::marker{color:var(--amber);}

  /* features duo */
  .duo{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
  .feature-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:30px;
    position:relative;
    overflow:hidden;
  }
  .feature-card.aa{border-top:3px solid var(--amber);}
  .feature-card.cp{border-top:3px solid var(--ice);}
  .feature-card .icon{width:44px; height:44px; margin-bottom:18px;}
  .feature-card h3{font-size:24px; margin-bottom:12px;}
  .feature-card.aa h3{color:var(--amber);}
  .feature-card.cp h3{color:var(--ice);}
  .feature-card p{color:var(--muted); font-size:14.5px; margin:0;}

  /* process */
  .process{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
  .step{
    background:var(--panel-2);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
  }
  .step .num{
    font-family:'Big Shoulders Display',sans-serif; font-size:38px; font-weight:800;
    color:transparent; -webkit-text-stroke:1.5px var(--line-strong);
    margin-bottom:10px; display:block;
  }
  .step h3{font-size:18px; text-transform:none; letter-spacing:0; margin-bottom:8px; font-family:'Inter'; font-weight:700;}
  .step p{color:var(--muted); font-size:14px; margin:0;}

  /* guarantee band */
  .band{
    background:linear-gradient(90deg, var(--panel-2), var(--panel));
    border-top:1px solid var(--line); border-bottom:1px solid var(--line);
    padding:44px 0;
  }
  .band-inner{
    display:flex; justify-content:space-between; align-items:center; gap:32px; flex-wrap:wrap;
  }
  .band-stat{display:flex; align-items:baseline; gap:10px;}
  .band-stat .n{font-family:'Big Shoulders Display',sans-serif; font-size:52px; color:var(--amber); font-weight:800;}
  .band-stat .t{font-size:13px; color:var(--muted); max-width:16ch;}
  .band-partner{
    font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--muted);
    display:flex; align-items:center; gap:10px;
  }
  .band-partner a{color:var(--ice); text-decoration:none; border-bottom:1px dotted var(--ice);}

  /* brand grid — the signature preset wall */
  .presetwall-head{display:flex; justify-content:space-between; align-items:flex-end; gap:20px; flex-wrap:wrap; margin-bottom:28px;}
  .presetwall{
    display:grid; grid-template-columns:repeat(5,1fr); gap:10px;
  }
  .preset-tile{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:8px;
    padding:18px 10px;
    text-align:center;
    text-decoration:none;
    color:var(--paper);
    font-family:'IBM Plex Mono',monospace;
    font-size:12.5px;
    letter-spacing:0.06em;
    position:relative;
    transition:all .15s ease;
  }
  .preset-tile .idx{
    display:block; font-size:9px; color:var(--muted-dim); margin-bottom:6px; letter-spacing:0.1em;
  }
  .preset-tile:hover, .preset-tile:focus-visible{
    background:var(--amber); color:#062226; border-color:var(--amber);
    transform:translateY(-2px);
    box-shadow:0 10px 20px -8px rgba(34,211,238,0.4);
  }
  .preset-tile:hover .idx, .preset-tile:focus-visible .idx{color:#0a3439;}

  /* CTA closer */
  .closer{
    text-align:center; padding:80px 0 90px;
    background:radial-gradient(500px 260px at 50% 0%, rgba(34,211,238,0.10), transparent 65%);
  }
  .closer h2{font-size:clamp(30px,5vw,52px); margin-bottom:16px;}
  .closer p{color:var(--muted); max-width:50ch; margin:0 auto 30px; font-size:16px;}

  footer{
    border-top:1px solid var(--line);
    padding:40px 0;
  }
  .foot-grid{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;}
  .foot-nav{display:flex; gap:18px; flex-wrap:wrap; font-size:13px; color:var(--muted);}
  .foot-nav a{text-decoration:none;}
  .foot-nav a:hover{color:var(--amber);}
  .foot-small{font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--muted-dim);}

  @media (max-width:920px){
    .hero-grid{grid-template-columns:1fr;}
    .duo{grid-template-columns:1fr;}
    .process{grid-template-columns:1fr;}
    .presetwall{grid-template-columns:repeat(3,1fr);}
    .notice{grid-template-columns:1fr;}
  }
  @media (max-width:560px){
    .presetwall{grid-template-columns:repeat(2,1fr);}
    .band-inner{flex-direction:column; align-items:flex-start;}
  }

  /* bigger, easier-to-tap preset buttons on mobile */
  @media (max-width:760px){
    .preset-btn{
      font-size:14px;
      padding:11px 16px;
      border-radius:8px;
    }
  }
  @media (max-width:420px){
    .preset-btn{
      font-size:15px;
      padding:12px 18px;
    }
  }

  /* ---------- make / product page ---------- */
  .crumbs{
    font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:0.08em; color:var(--muted-dim);
    padding:18px 0 0;
  }
  .crumbs a{color:var(--muted); text-decoration:none;}
  .crumbs a:hover{color:var(--amber);}
  .product-hero{padding:28px 0 64px;}
  .product-grid{display:grid; grid-template-columns:1.6fr 1fr; gap:40px; align-items:start;}
  .product-frame{
    background:linear-gradient(180deg,#1c1f26,#14161b);
    border:1px solid var(--line-strong);
    border-radius:16px;
    padding:14px;
    box-shadow:0 30px 60px -20px rgba(0,0,0,0.6);
  }
  .product-frame .flyer-window{
    background:#0b0d10;
    border-radius:9px;
    border:1px solid rgba(255,255,255,0.06);
    overflow:hidden;
    display:flex; align-items:center; justify-content:center;
    min-height:560px;
  }
  .product-frame img{width:100%; height:auto; display:block;}
  .product-frame .flyer-fallback{
    padding:40px 28px; text-align:center; color:var(--muted); font-size:13px;
  }
  .product-frame .flyer-fallback .mono{display:block; font-size:10px; color:var(--muted-dim); margin-top:10px;}
  .product-copy .eyebrow{margin-bottom:12px; font-size:11px;}
  .product-copy h1{font-size:clamp(22px,2.6vw,30px); margin-bottom:12px;}
  .product-copy p.lead{color:var(--muted); font-size:13.5px; max-width:44ch; margin:0 0 20px;}
  .spec-list{list-style:none; margin:0 0 22px; padding:0; display:grid; gap:8px;}
  .spec-list li{
    display:flex; align-items:center; gap:9px;
    font-size:12.5px; color:var(--paper);
    background:var(--panel); border:1px solid var(--line);
    border-radius:7px; padding:8px 12px;
  }
  .spec-list li::before{
    content:""; width:5px; height:5px; border-radius:50%; background:var(--amber); flex-shrink:0;
  }
  .other-makes{
    margin-top:14px; padding-top:14px; border-top:1px dashed var(--line-strong);
    font-size:11.5px; color:var(--muted-dim);
  }
  .other-makes a{color:var(--ice); text-decoration:none; border-bottom:1px dotted var(--ice);}

  @media (max-width:920px){
    .product-grid{grid-template-columns:1fr;}
    .product-frame .flyer-window{min-height:320px;}
  }