/* ============ TOKENS ============ */
  :root{
    --concrete-900:#16181c;
    --concrete-850:#1d2025;
    --slate-700:#3a3f46;
    --steel-500:#71767e;
    --steel-400:#9a9ea3;
    --concrete-300:#c9cac4;
    --concrete-200:#dcdcd6;
    --concrete-100:#e9e8e2;
    --paper:#f4f3ee;
    --amber:#f2a20c;
    --amber-deep:#d98800;

    /* themed roles (LIGHT is the bare :root default) */
    --bg:var(--paper);
    --surface:#fbfaf6;
    --surface-2:var(--concrete-100);
    --ink:var(--concrete-900);
    --ink-soft:#4a4f56;
    --ink-mute:#6c7178;
    --line:#d7d7d0;
    --line-strong:#c3c3ba;
    --accent:var(--amber);
    --accent-ink:#3a2600;

    --maxw:1200px;
    --step:clamp(1rem,0.7rem + 1.4vw,1.4rem);
    --r:14px;
    --shadow:0 1px 2px rgba(22,24,28,.05),0 12px 34px -18px rgba(22,24,28,.28);
    --shadow-lift:0 2px 6px rgba(22,24,28,.08),0 30px 60px -28px rgba(22,24,28,.42);
    color-scheme:light;
  }
  :root:not([data-theme="light"]){
    @media (prefers-color-scheme:dark){
      --bg:#121418;
      --surface:#181b20;
      --surface-2:#1f2329;
      --ink:#edecE6;
      --ink:#ecebe5;
      --ink-soft:#c3c4bd;
      --ink-mute:#9a9ea3;
      --line:#2c3037;
      --line-strong:#3a3f46;
      --accent:#f5ad2a;
      --accent-ink:#20160a;
      color-scheme:dark;
    }
  }
  :root[data-theme="dark"]{
    --bg:#121418;
    --surface:#181b20;
    --surface-2:#1f2329;
    --ink:#ecebe5;
    --ink-soft:#c3c4bd;
    --ink-mute:#9a9ea3;
    --line:#2c3037;
    --line-strong:#3a3f46;
    --accent:#f5ad2a;
    --accent-ink:#20160a;
    color-scheme:dark;
  }

  /* ============ BASE ============ */
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
  body{
    margin:0;background:var(--bg);color:var(--ink);
    font-family:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
    font-size:1.02rem;line-height:1.65;-webkit-font-smoothing:antialiased;
    text-underline-offset:3px;
  }
  h1,h2,h3,h4{font-family:"Saira","IBM Plex Sans",sans-serif;font-weight:700;line-height:1.02;margin:0;text-wrap:balance;letter-spacing:-.01em}
  p{margin:0}
  a{color:inherit}
  img{max-width:100%;display:block}
  .wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(1.1rem,4vw,2.4rem)}
  .mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
  .eyebrow{
    font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.22em;
    text-transform:uppercase;color:var(--ink-mute);font-weight:500;
    display:inline-flex;align-items:center;gap:.6rem;
  }
  .eyebrow::before{content:"";width:26px;height:2px;background:var(--accent)}
  .tnum{font-variant-numeric:tabular-nums}

  /* ============ DIMENSION LINE MOTIF ============ */
  .dim{display:flex;align-items:center;gap:.85rem;color:var(--ink-mute);
    font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}
  .dim::before,.dim::after{content:"";height:1px;background:var(--line-strong);flex:1}
  .dim span{position:relative;padding-inline:.1rem;white-space:nowrap}
  .dim.tick::before,.dim.tick::after{position:relative}
  .dim.tick::before{box-shadow:0 -4px 0 -0px var(--line-strong)}

  /* ============ BUTTONS ============ */
  .btn{
    --_bg:var(--accent);--_fg:var(--accent-ink);
    display:inline-flex;align-items:center;gap:.6rem;justify-content:center;
    font-family:"Saira",sans-serif;font-weight:600;font-size:.98rem;letter-spacing:.01em;white-space:nowrap;
    padding:.82rem 1.35rem;border-radius:10px;border:1px solid transparent;
    background:var(--_bg);color:var(--_fg);text-decoration:none;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
    box-shadow:0 1px 0 rgba(0,0,0,.06),0 10px 22px -14px rgba(242,162,12,.9);
  }
  .btn:hover{transform:translateY(-2px)}
  .btn .arw{transition:transform .18s ease}
  .btn:hover .arw{transform:translateX(3px)}
  .btn.ghost{--_bg:transparent;--_fg:var(--ink);border-color:var(--line-strong);box-shadow:none}
  .btn.ghost:hover{border-color:var(--ink);background:color-mix(in srgb,var(--ink) 5%,transparent)}
  .btn.on-dark{--_fg:var(--accent-ink)}
  .btn.ghost.on-dark{--_fg:#f2f1ea;border-color:#454b53}
  .btn.ghost.on-dark:hover{border-color:#7d848c;background:rgba(255,255,255,.05)}
  @media (prefers-reduced-motion:reduce){.btn,.btn:hover,.btn .arw{transform:none;transition:none}}

  /* ============ HEADER ============ */
  header{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--bg) 86%,transparent);
    backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:70px;gap:1rem}
  .brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink)}
  .brand img{height:40px;width:auto}
  .brand b{font-family:"Saira",sans-serif;font-weight:800;font-size:1.24rem;letter-spacing:-.02em}
  .brand b span{color:var(--steel-500)}
  .navlinks{display:flex;gap:1.6rem;align-items:center}
  .navlinks a{text-decoration:none;color:var(--ink-soft);font-size:.94rem;font-weight:500;position:relative;padding:.3rem 0}
  .navlinks a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent);transition:width .2s ease}
  .navlinks a:hover{color:var(--ink)}
  .navlinks a:hover::after{width:100%}
  .nav-cta{display:flex;align-items:center;gap:.9rem}
  .nav-phone{font-family:"IBM Plex Mono",monospace;font-size:.85rem;color:var(--ink-soft);text-decoration:none;white-space:nowrap}
  .nav-phone:hover{color:var(--accent)}
  .menu-btn{display:none;background:none;border:1px solid var(--line-strong);border-radius:8px;width:42px;height:42px;cursor:pointer;color:var(--ink)}
  @media (max-width:1024px){
    .navlinks,.nav-phone{display:none}
    .menu-btn{display:inline-flex;align-items:center;justify-content:center}
  }
  /* mobile drawer */
  .drawer{position:fixed;inset:0;z-index:80;background:var(--bg);padding:1.4rem;display:none;flex-direction:column}
  .drawer.open{display:flex}
  .drawer .drawtop{display:flex;justify-content:space-between;align-items:center;height:46px}
  .drawer nav{display:flex;flex-direction:column;gap:.3rem;margin-top:2rem}
  .drawer nav a{text-decoration:none;color:var(--ink);font-family:"Saira",sans-serif;font-weight:600;font-size:1.7rem;padding:.7rem 0;border-bottom:1px solid var(--line)}
  .drawer .btn{margin-top:1.6rem}

  /* ============ HERO ============ */
  .hero{position:relative;background:var(--concrete-900);color:#eceae3;overflow:hidden}
  .hero .grain{position:absolute;inset:0;opacity:.5;pointer-events:none;
    background-image:radial-gradient(circle at 50% 0,rgba(242,162,12,.10),transparent 60%);}
  .hero .grid-lines{position:absolute;inset:0;opacity:.4;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:64px 64px;mask-image:radial-gradient(ellipse 90% 80% at 70% 20%,#000,transparent 90%)}
  .hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;
    padding-block:clamp(3.2rem,7vw,6rem) clamp(3rem,6vw,5rem);align-items:center}
  .hero .kick{color:#c9cac4}
  .hero .kick::before{background:var(--amber)}
  .hero h1{font-size:clamp(2.7rem,1.4rem + 5.2vw,5.4rem);font-weight:800;letter-spacing:-.025em;margin:1.3rem 0 0}
  .hero h1 .em{color:var(--amber);display:inline-block}
  .hero .lede{margin-top:1.5rem;max-width:34ch;color:#c4c5be;font-size:clamp(1.02rem,.96rem + .3vw,1.18rem)}
  .hero-cta{display:flex;gap:.9rem;margin-top:2.1rem;flex-wrap:wrap}
  .hero-specs{margin-top:2.6rem;display:flex;gap:2.2rem;flex-wrap:wrap}
  .hero-specs .s b{font-family:"Saira";font-weight:700;font-size:1.9rem;color:#fff;display:block;line-height:1}
  .hero-specs .s span{font-family:"IBM Plex Mono";font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:#8b9098}
  .hero-specs .s{border-left:2px solid var(--amber);padding-left:.85rem}
  /* hero visual */
  .hero-vis{position:relative;aspect-ratio:4/5;border-radius:16px;overflow:hidden;border:1px solid #2c3037;
    box-shadow:0 40px 80px -40px #000}
  .hero-vis img{width:100%;height:100%;object-fit:cover;filter:contrast(1.04) saturate(.92)}
  .hero-vis .tag{position:absolute;left:14px;bottom:14px;right:14px;display:flex;justify-content:space-between;align-items:flex-end;gap:1rem}
  .hero-vis .chip{background:rgba(18,20,24,.72);backdrop-filter:blur(6px);border:1px solid #363b42;
    border-radius:9px;padding:.5rem .75rem;font-family:"IBM Plex Mono";font-size:.72rem;color:#e7e6df;letter-spacing:.04em}
  .hero-vis .chip b{color:var(--amber);font-weight:500}
  .hero-frame-lbl{position:absolute;top:14px;left:14px;font-family:"IBM Plex Mono";font-size:.68rem;letter-spacing:.16em;color:#a7abb0;text-transform:uppercase}
  .draw{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.2s .2s ease forwards}
  @keyframes draw{to{stroke-dashoffset:0}}
  @media (prefers-reduced-motion:reduce){.draw{animation:none;stroke-dashoffset:0}}

  /* marquee trust strip */
  .strip{background:var(--concrete-850);color:#b7bbc0;border-top:1px solid #24272d;border-bottom:1px solid #24272d;overflow:hidden}
  .strip .row{display:flex;gap:3rem;padding:.85rem 0;white-space:nowrap;width:max-content;animation:marq 32s linear infinite}
  .strip .row span{font-family:"IBM Plex Mono";font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;display:inline-flex;gap:.9rem;align-items:center}
  .strip .row span::before{content:"◆";color:var(--amber);font-size:.6rem}
  @keyframes marq{to{transform:translateX(-50%)}}
  @media (prefers-reduced-motion:reduce){.strip .row{animation:none}}

  /* ============ SECTION SCAFFOLD ============ */
  section{padding-block:clamp(3.4rem,7vw,6rem)}
  .sec-head{display:flex;flex-direction:column;gap:1rem;max-width:60ch}
  .sec-head h2{font-size:clamp(1.9rem,1.3rem + 2.4vw,3rem);letter-spacing:-.02em}
  .sec-head p{color:var(--ink-soft);font-size:1.06rem;margin-top:.2rem}

  /* ============ PRODUCTS ============ */
  .prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3rem;margin-top:2.6rem}
  @media (max-width:760px){.prod-grid{grid-template-columns:1fr}}
  .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
    display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
  .card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}
  @media (prefers-reduced-motion:reduce){.card:hover{transform:none}}
  .card .ph{position:relative;aspect-ratio:16/11;overflow:hidden;background:var(--concrete-200)}
  .card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .card:hover .ph img{transform:scale(1.05)}
  .card .code{position:absolute;top:10px;left:10px;background:rgba(18,20,24,.78);color:#e7e6df;
    font-family:"IBM Plex Mono";font-size:.68rem;letter-spacing:.1em;padding:.3rem .55rem;border-radius:6px}
  .card .body{padding:1.35rem 1.4rem 1.5rem;display:flex;flex-direction:column;gap:.7rem;flex:1}
  .card h3{font-size:1.4rem;letter-spacing:-.01em}
  .card .desc{color:var(--ink-soft);font-size:.96rem}
  .specrow{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.2rem}
  .spectag{font-family:"IBM Plex Mono";font-size:.72rem;color:var(--ink-mute);border:1px solid var(--line);
    border-radius:6px;padding:.28rem .5rem;background:var(--bg)}
  .spectag b{color:var(--ink);font-weight:500}
  .card .foot{margin-top:auto;padding-top:1rem;border-top:1px solid var(--line)}
  .addq{width:100%;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;cursor:pointer;
    font-family:"Saira",sans-serif;font-weight:600;font-size:.95rem;color:var(--ink);
    background:var(--bg);border:1px solid var(--line-strong);border-radius:10px;padding:.7rem 1rem;transition:.18s ease}
  .addq .arw{transition:transform .18s ease}
  .addq:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
  .addq:hover .arw{transform:translateX(3px)}
  .addq.added{background:color-mix(in srgb,var(--accent) 18%,var(--surface));border-color:var(--accent);color:var(--ink)}

  /* ============ PROCESS ============ */
  .process{background:var(--surface-2);border-block:1px solid var(--line)}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin-top:2.8rem}
  @media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media (max-width:520px){.steps{grid-template-columns:1fr}}
  .step{position:relative;padding-top:1.6rem;border-top:2px solid var(--line-strong)}
  .step .no{font-family:"IBM Plex Mono";font-size:.8rem;color:var(--accent);letter-spacing:.1em}
  .step h3{font-size:1.28rem;margin:.7rem 0 .5rem}
  .step p{color:var(--ink-soft);font-size:.95rem}
  .step .ic{position:absolute;top:1.4rem;right:0;color:var(--steel-500)}

  /* ============ WHY / benefits ============ */
  .why-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:2.4rem;align-items:center}
  @media (max-width:860px){.why-grid{grid-template-columns:1fr}}
  .benefits{display:grid;gap:.2rem}
  .benefit{display:grid;grid-template-columns:auto 1fr;gap:1.1rem;padding:1.25rem 0;border-bottom:1px solid var(--line)}
  .benefit:last-child{border-bottom:0}
  .benefit .bic{width:46px;height:46px;border-radius:11px;display:grid;place-items:center;
    background:color-mix(in srgb,var(--accent) 16%,var(--surface));color:var(--accent-ink);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent)}
  :root[data-theme="dark"] .benefit .bic,:root:not([data-theme="light"]) .benefit .bic{color:var(--accent)}
  @media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .benefit .bic{color:var(--accent)}}
  .benefit h3{font-size:1.16rem;margin-bottom:.2rem}
  .benefit p{color:var(--ink-soft);font-size:.95rem}
  .why-photo{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/5;box-shadow:var(--shadow)}
  .why-photo img{width:100%;height:100%;object-fit:cover}
  .why-photo .ovl{position:absolute;inset:auto 0 0 0;padding:1.2rem;background:linear-gradient(transparent,rgba(18,20,24,.82));color:#fff}
  .why-photo .ovl .mono{font-size:.74rem;letter-spacing:.1em;color:#e6c98a}
  .why-photo .ovl b{font-family:"Saira";font-size:1.3rem;display:block;margin-top:.2rem}

  /* ============ STATS band ============ */
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:3rem}
  @media (max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}
  .stat b{font-family:"Saira";font-weight:800;font-size:clamp(2.2rem,1.6rem + 2vw,3.2rem);letter-spacing:-.02em;display:block;line-height:1}
  .stat b i{color:var(--accent);font-style:normal}
  .stat span{font-family:"IBM Plex Mono";font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mute);margin-top:.5rem;display:block}

  /* ============ ABOUT (dark) ============ */
  .about{background:var(--concrete-900);color:#e9e8e1;position:relative;overflow:hidden}
  .about .grid-lines{position:absolute;inset:0;opacity:.35;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:64px 64px}
  .about-in{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:3rem}
  @media (max-width:860px){.about-in{grid-template-columns:1fr;gap:2rem}}
  .about h2{font-size:clamp(1.9rem,1.3rem + 2.4vw,3rem);color:#fff}
  .about .kick{color:#c2c4be}.about .kick::before{background:var(--amber)}
  .mv{display:grid;gap:1.4rem}
  .mv .item{border-left:2px solid var(--amber);padding-left:1.3rem}
  .mv .item h4{font-family:"IBM Plex Mono";font-weight:500;font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;color:var(--amber);margin-bottom:.55rem}
  .mv .item p{color:#c9cac3;font-size:1.05rem}

  /* ============ CTA band ============ */
  .cta{background:linear-gradient(120deg,#1c1f24,#121418);color:#fff;text-align:center;position:relative;overflow:hidden}
  .cta .glow{position:absolute;inset:0;background:radial-gradient(circle at 50% 120%,rgba(242,162,12,.22),transparent 55%)}
  .cta-in{position:relative;display:flex;flex-direction:column;align-items:center;gap:1.4rem}
  .cta h2{font-size:clamp(2rem,1.4rem + 3vw,3.6rem);color:#fff}
  .cta p{color:#c4c5be;max-width:48ch}
  .cta .hero-cta{justify-content:center}

  /* ============ CONTACT ============ */
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem;margin-top:2.6rem}
  @media (max-width:820px){.contact-grid{grid-template-columns:1fr}}
  .cinfo{display:grid;gap:.2rem;align-content:start}
  .crow{display:grid;grid-template-columns:auto 1fr;gap:1rem;padding:1.15rem 0;border-bottom:1px solid var(--line);align-items:start}
  .crow:first-child{padding-top:0}
  .crow .ci{width:42px;height:42px;border-radius:10px;border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--accent)}
  .crow h4{font-family:"IBM Plex Mono";font-weight:500;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-mute);margin-bottom:.3rem}
  .crow a,.crow p{color:var(--ink);text-decoration:none;font-size:1.02rem}
  .crow a:hover{color:var(--accent)}
  form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;box-shadow:var(--shadow)}
  form .fld{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}
  form label{font-family:"IBM Plex Mono";font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mute)}
  form input,form select,form textarea{font:inherit;font-size:.98rem;padding:.72rem .8rem;border:1px solid var(--line-strong);
    border-radius:9px;background:var(--bg);color:var(--ink);width:100%}
  form input:focus,form select:focus,form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
  form .two{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
  @media (max-width:480px){form .two{grid-template-columns:1fr}}
  form .btn{width:100%;margin-top:.4rem}
  .formnote{font-size:.8rem;color:var(--ink-mute);margin-top:.8rem;text-align:center}
  /* quote builder */
  .qb-lines{display:flex;flex-direction:column;gap:.55rem;margin-bottom:1.1rem}
  .qb-lbl{font-family:"IBM Plex Mono";font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mute);margin-bottom:.2rem}
  .qb-line{display:grid;grid-template-columns:1fr auto;gap:.8rem;align-items:center;
    border:1px solid var(--line);border-radius:10px;padding:.6rem .7rem .6rem .85rem;background:var(--bg);transition:border-color .18s}
  .qb-line.on{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--bg))}
  .qb-line .nm{font-weight:600;font-size:.96rem;line-height:1.2}
  .qb-line .un{display:block;font-family:"IBM Plex Mono";font-size:.68rem;color:var(--ink-mute);letter-spacing:.04em;margin-top:.1rem}
  .qty{display:inline-flex;align-items:center;border:1px solid var(--line-strong);border-radius:8px;overflow:hidden;background:var(--surface)}
  .qty button{width:34px;height:38px;border:0;background:none;color:var(--ink);font-size:1.15rem;cursor:pointer;line-height:1}
  .qty button:hover{background:var(--accent);color:var(--accent-ink)}
  .qty input{width:46px;text-align:center;border:0;border-inline:1px solid var(--line-strong);border-radius:0;padding:.5rem 0;
    background:var(--surface);font-family:"IBM Plex Mono";font-size:.95rem;-moz-appearance:textfield}
  .qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
  .qty input:focus{outline:2px solid var(--accent);outline-offset:-2px}
  .qb-empty{font-size:.82rem;color:var(--ink-mute);text-align:center;padding:.4rem 0}
  .qb-ok{display:none;flex-direction:column;align-items:center;text-align:center;gap:.7rem;padding:1rem .5rem}
  .qb-ok.show{display:flex}
  .qb-ok .tick{width:56px;height:56px;border-radius:50%;background:color-mix(in srgb,var(--accent) 20%,var(--surface));
    border:1px solid var(--accent);display:grid;place-items:center;color:var(--accent-ink)}
  :root[data-theme="dark"] .qb-ok .tick,:root:not([data-theme="light"]) .qb-ok .tick{color:var(--accent)}
  .qb-ok h3{font-size:1.4rem}
  .qb-ok .qno{font-family:"IBM Plex Mono";font-size:.85rem;color:var(--accent-ink);background:color-mix(in srgb,var(--accent) 18%,transparent);padding:.25rem .6rem;border-radius:6px}
  :root[data-theme="dark"] .qb-ok .qno,:root:not([data-theme="light"]) .qb-ok .qno{color:var(--ink)}
  .btn.busy{opacity:.7;pointer-events:none}

  /* ============ FOOTER ============ */
  footer{background:var(--concrete-900);color:#b9bbbf;padding-block:3.2rem 2rem;border-top:1px solid #24272d}
  .fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:2.4rem}
  @media (max-width:760px){.fgrid{grid-template-columns:1fr;gap:2rem}}
  footer .brand b{color:#fff}
  footer .brand b span{color:var(--steel-400)}
  footer p{font-size:.92rem;color:#8f9399;margin-top:1rem;max-width:38ch}
  footer h5{font-family:"IBM Plex Mono";font-weight:500;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:#7c8188;margin:0 0 1rem}
  footer .fcol a{display:block;color:#b9bbbf;text-decoration:none;font-size:.94rem;padding:.32rem 0}
  footer .fcol a:hover{color:var(--amber)}
  .socials{display:flex;gap:.6rem;margin-top:1.2rem}
  .socials a{width:38px;height:38px;border:1px solid #363b42;border-radius:9px;display:grid;place-items:center;color:#c3c4bd;transition:.18s}
  .socials a:hover{background:var(--amber);border-color:var(--amber);color:#20160a}
  .fbot{border-top:1px solid #24272d;margin-top:2.4rem;padding-top:1.4rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
    font-family:"IBM Plex Mono";font-size:.78rem;color:#797e85}

  /* theme toggle */
  .tgl{width:42px;height:42px;border:1px solid var(--line-strong);border-radius:9px;background:none;color:var(--ink);cursor:pointer;display:grid;place-items:center}
  .tgl:hover{border-color:var(--accent);color:var(--accent)}
  .tgl .moon{display:none}
  :root[data-theme="dark"] .tgl .sun,:root:not([data-theme="light"]) .tgl .sun{display:block}
  @media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .tgl .sun{display:none}:root:not([data-theme="light"]) .tgl .moon{display:block}}
  :root[data-theme="dark"] .tgl .sun{display:none}:root[data-theme="dark"] .tgl .moon{display:block}

  /* reveal on scroll */
  .rv{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
  .rv.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

  /* ============ ACTIVE NAV ============ */
  body[data-page="careers"] .navlinks a[href="careers.html"],
  body[data-page="blog"] .navlinks a[href="blog.html"]{color:var(--ink)}
  body[data-page="careers"] .navlinks a[href="careers.html"]::after,
  body[data-page="blog"] .navlinks a[href="blog.html"]::after{width:100%}

  /* ============ SUB-PAGE HERO ============ */
  .page-hero{background:var(--concrete-900);color:#eceae3;position:relative;overflow:hidden}
  .page-hero .grid-lines{position:absolute;inset:0;opacity:.4;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:64px 64px;mask-image:radial-gradient(ellipse 90% 90% at 80% 10%,#000,transparent 90%)}
  .page-hero .in{position:relative;padding-block:clamp(2.8rem,6vw,4.6rem)}
  .page-hero .kick{color:#c9cac4}.page-hero .kick::before{background:var(--amber)}
  .page-hero h1{font-size:clamp(2.3rem,1.5rem + 3.6vw,4rem);font-weight:800;letter-spacing:-.025em;margin:1.1rem 0 0;color:#fff}
  .page-hero h1 .em{color:var(--amber)}
  .page-hero .lede{margin-top:1.1rem;max-width:52ch;color:#c4c5be;font-size:clamp(1.02rem,.96rem + .3vw,1.16rem)}
  .crumb{font-family:"IBM Plex Mono";font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:#8b9098}
  .crumb a{color:#8b9098;text-decoration:none}.crumb a:hover{color:var(--amber)}

  /* ============ CAREERS ============ */
  .val-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem;margin-top:2.6rem}
  @media (max-width:820px){.val-grid{grid-template-columns:1fr}}
  .val{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1.5rem;box-shadow:var(--shadow)}
  .val .vic{width:46px;height:46px;border-radius:11px;display:grid;place-items:center;margin-bottom:1rem;
    background:color-mix(in srgb,var(--accent) 16%,var(--surface));color:var(--accent-ink);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent)}
  :root[data-theme="dark"] .val .vic,:root:not([data-theme="light"]) .val .vic{color:var(--accent)}
  .val h3{font-size:1.24rem;margin-bottom:.4rem}
  .val p{color:var(--ink-soft);font-size:.96rem}
  .roles{display:flex;flex-direction:column;gap:1rem;margin-top:2.4rem}
  .role{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1.3rem 1.5rem;box-shadow:var(--shadow);transition:.2s}
  .role:hover{border-color:var(--line-strong);transform:translateY(-2px)}
  .role h3{font-size:1.2rem}
  .role .tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.55rem}
  .role .rtag{font-family:"IBM Plex Mono";font-size:.7rem;letter-spacing:.05em;color:var(--ink-mute);
    border:1px solid var(--line);border-radius:6px;padding:.25rem .55rem;background:var(--bg)}
  @media (max-width:560px){.role{grid-template-columns:1fr}.role .btn{width:100%}}
  .apply{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.5rem,4vw,2.4rem);margin-top:2.4rem;
    display:grid;grid-template-columns:1.2fr auto;gap:1.6rem;align-items:center}
  @media (max-width:700px){.apply{grid-template-columns:1fr}}
  .apply h3{font-size:1.5rem}.apply p{color:var(--ink-soft);margin-top:.5rem;max-width:52ch}

  /* ============ BLOG ============ */
  .post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.6rem}
  @media (max-width:900px){.post-grid{grid-template-columns:repeat(2,1fr)}}
  @media (max-width:600px){.post-grid{grid-template-columns:1fr}}
  .postcard{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:.22s}
  .postcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}
  .postcard .ph{aspect-ratio:16/10;overflow:hidden;background:var(--concrete-200)}
  .postcard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .postcard:hover .ph img{transform:scale(1.05)}
  .postcard .pb{padding:1.3rem 1.35rem 1.5rem;display:flex;flex-direction:column;gap:.55rem;flex:1}
  .pmeta{font-family:"IBM Plex Mono";font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-mute);display:flex;gap:.6rem;align-items:center}
  .pmeta .cat{color:var(--accent-ink);background:color-mix(in srgb,var(--accent) 20%,transparent);padding:.2rem .5rem;border-radius:5px}
  :root[data-theme="dark"] .pmeta .cat,:root:not([data-theme="light"]) .pmeta .cat{color:var(--accent)}
  .postcard h3{font-size:1.24rem;line-height:1.15}
  .postcard .ex{color:var(--ink-soft);font-size:.94rem;flex:1}
  .postcard .more{font-family:"Saira";font-weight:600;color:var(--accent-ink);font-size:.92rem;margin-top:.2rem}
  :root[data-theme="dark"] .postcard .more,:root:not([data-theme="light"]) .postcard .more{color:var(--accent)}

  /* ============ ARTICLE ============ */
  .article{max-width:70ch;margin-inline:auto}
  .article-hero{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);margin:2rem auto 0;max-width:900px;aspect-ratio:2/1;box-shadow:var(--shadow)}
  .article-hero img{width:100%;height:100%;object-fit:cover}
  .article p{margin:1.15rem 0;color:var(--ink-soft);font-size:1.08rem;line-height:1.75}
  .article h2{font-size:1.7rem;margin:2.2rem 0 .6rem;letter-spacing:-.01em}
  .article h3{font-size:1.28rem;margin:1.8rem 0 .4rem}
  .article ul{margin:1.1rem 0;padding-left:1.2rem;color:var(--ink-soft);font-size:1.06rem;line-height:1.7}
  .article li{margin:.4rem 0}
  .article strong{color:var(--ink)}
  .article blockquote{margin:1.6rem 0;padding:1rem 1.4rem;border-left:3px solid var(--amber);
    background:var(--surface-2);border-radius:0 10px 10px 0;font-size:1.12rem;color:var(--ink)}
  .article .lead{font-size:1.22rem;color:var(--ink);line-height:1.6}
  .backlink{display:inline-flex;align-items:center;gap:.5rem;font-family:"Saira";font-weight:600;color:var(--ink-soft);text-decoration:none;margin-bottom:.5rem}
  .backlink:hover{color:var(--accent)}
  .article-foot{max-width:70ch;margin:2.6rem auto 0;padding-top:1.6rem;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}

  /* ============ LOGO LEGIBILITY ON DARK SURFACES ============ */
  /* Logo mark is black-on-transparent; invert it to white on dark grounds. */
  footer .brand img{filter:brightness(0) invert(1)}
  :root[data-theme="dark"] header .brand img,
  :root[data-theme="dark"] .drawer .brand img{filter:brightness(0) invert(1)}
  @media (prefers-color-scheme:dark){
    :root:not([data-theme="light"]) header .brand img,
    :root:not([data-theme="light"]) .drawer .brand img{filter:brightness(0) invert(1)}
  }

  /* ============ APPLICATION MODAL ============ */
  .modal{position:fixed;inset:0;z-index:120;display:none;align-items:flex-start;justify-content:center;
    padding:5vh 1rem;background:rgba(12,13,16,.62);backdrop-filter:blur(3px);overflow-y:auto}
  .modal.open{display:flex}
  .modal-card{background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:16px;
    width:100%;max-width:520px;box-shadow:var(--shadow-lift);padding:1.6rem 1.6rem 1.8rem;position:relative}
  .modal-card h3{font-size:1.5rem}
  .modal-card .mp{color:var(--ink-soft);font-size:.95rem;margin:.35rem 0 1.2rem}
  .modal-card .mp b{color:var(--ink)}
  .modal-x{position:absolute;top:12px;right:12px;width:38px;height:38px;border:1px solid var(--line-strong);
    border-radius:9px;background:var(--bg);color:var(--ink);cursor:pointer;display:grid;place-items:center}
  .modal-x:hover{border-color:var(--accent);color:var(--accent)}
  .modal form .fld{display:flex;flex-direction:column;gap:.4rem;margin-bottom:.9rem}
  .modal form label{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mute)}
  .modal form input{font:inherit;font-size:.98rem;padding:.72rem .8rem;border:1px solid var(--line-strong);border-radius:9px;background:var(--bg);color:var(--ink);width:100%}
  .modal form input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
  .modal form .two{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
  @media (max-width:480px){.modal form .two{grid-template-columns:1fr}}
  .filefld{border:1.5px dashed var(--line-strong);border-radius:10px;padding:.9rem;text-align:center;background:var(--bg);cursor:pointer;transition:.15s}
  .filefld:hover{border-color:var(--accent)}
  .filefld input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
  .filefld .fl-lbl{font-size:.9rem;color:var(--ink-soft)}
  .filefld .fl-lbl b{color:var(--accent-ink)}
  :root[data-theme="dark"] .filefld .fl-lbl b,:root:not([data-theme="light"]) .filefld .fl-lbl b{color:var(--accent)}
  .filefld.has-file{border-style:solid;border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--bg))}
  .modal form .btn{width:100%;margin-top:.4rem}
  .modal .mnote{font-size:.8rem;color:var(--ink-mute);text-align:center;margin-top:.7rem}
  .modal-ok{display:none;flex-direction:column;align-items:center;text-align:center;gap:.7rem;padding:1.4rem .5rem}
  .modal-ok.show{display:flex}
  .modal-ok .tick{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
    background:color-mix(in srgb,var(--accent) 20%,var(--surface));border:1px solid var(--accent);color:var(--accent-ink)}
  :root[data-theme="dark"] .modal-ok .tick,:root:not([data-theme="light"]) .modal-ok .tick{color:var(--accent)}