:root{
    --bg:#F6F4EF; --panel:#FFFFFF; --ink:#1D1B18; --muted:#75705F; --line:#E3DFD3;
    --accent:#28524A; --accent-soft:#DCE7E2;
    --low:#8FA687; --mid:#C79A56; --high:#6B4A34;
    --low-soft:#E8EEE4; --mid-soft:#F3E7D2; --high-soft:#EAE0D8;
  }
  *{box-sizing:border-box;}
  body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',sans-serif;-webkit-font-smoothing:antialiased;}
  h1,h2,h3,.display{font-family:'Space Grotesk',sans-serif;letter-spacing:-0.01em;margin:0;}
  .mono{font-family:'IBM Plex Mono',monospace;}
  .app{max-width:1180px;margin:0 auto;padding:0 32px 100px;}
  @media (max-width:700px){.app{padding:0 16px 100px;}}

  header{padding:24px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:16px;}
  .logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:30px;letter-spacing:-0.02em;}
  .logo span{font-family:'IBM Plex Mono',monospace;font-weight:400;font-size:11px;color:var(--muted);letter-spacing:0.06em;text-transform:uppercase;border:1px solid var(--line);padding:2px 6px;border-radius:2px;margin-left:10px;vertical-align:middle;}
  .logo-upload-hint{font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--muted);margin-top:10px;}
  .header-controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap;}
  @media (max-width:640px){
    header{padding:18px 0;}
    .logo img{height:28px;}
    .logo-upload-hint{margin-top:8px;font-size:9px;}
    .header-controls{width:100%;justify-content:space-between;}
    .mode-toggle button{padding:8px 12px;font-size:12px;}
  }
  @media (max-width:400px){
    .header-controls{flex-direction:column;align-items:stretch;gap:10px;}
    .mode-toggle{width:100%;}
    .mode-toggle button{flex:1;}
  }

  /* hero */
  .hero-section{margin:24px 0 8px;border:1px solid var(--line);border-radius:2px;overflow:hidden;background:linear-gradient(135deg, var(--accent-soft), var(--bg));}
  .hero-inner{display:flex;align-items:center;gap:0;}
  .hero-copy{flex:1;padding:44px 40px;}
  .hero-copy .eyebrow{margin-bottom:14px;}
  .hero-copy h1{font-size:32px;font-weight:600;line-height:1.15;max-width:420px;}
  .hero-copy p{color:var(--muted);font-size:14px;margin-top:12px;max-width:380px;line-height:1.6;}
  .hero-art{flex:0 0 340px;padding:20px;display:flex;align-items:center;justify-content:center;}
  .hero-art svg{width:100%;height:auto;}
  @media (max-width:800px){.hero-inner{flex-direction:column;} .hero-art{flex:1;width:100%;padding:0 20px 20px;}}

  /* scroll gallery */
  .gallery-wrap{margin-top:40px;}
  .gallery-wrap h3{font-size:13px;font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);margin-bottom:12px;}
  .gallery-scroll{display:flex;gap:14px;overflow-x:auto;padding-bottom:10px;scrollbar-width:thin;}
  .gallery-scroll::-webkit-scrollbar{height:6px;}
  .gallery-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}
  .gallery-item{flex:0 0 150px;border:1px solid var(--line);border-radius:2px;background:var(--panel);cursor:pointer;transition:border-color .15s ease, transform .15s ease;}
  .gallery-item:hover{border-color:var(--accent);transform:translateY(-2px);}
  .gallery-item .g-art{height:80px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);background:repeating-linear-gradient(135deg, transparent, transparent 9px, rgba(0,0,0,0.02) 9px, rgba(0,0,0,0.02) 10px);}
  .gallery-item .g-art svg{width:65%;height:auto;}
  .gallery-item .g-label{padding:8px 10px;font-size:12px;font-weight:600;}
  .gallery-item .g-band{font-family:'IBM Plex Mono',monospace;font-size:9px;color:var(--muted);text-transform:uppercase;padding:0 10px 8px;}
  .gallery-item.addon{cursor:default;opacity:0.7;background:repeating-linear-gradient(135deg, transparent, transparent 8px, rgba(0,0,0,0.02) 8px, rgba(0,0,0,0.02) 9px);}
  .gallery-item.addon:hover{border-color:var(--line);transform:none;}
  .gallery-item.addon .g-band{color:var(--accent);font-weight:600;}
  .gallery-item.available{cursor:pointer;opacity:1;background:#E3F2E1;border-color:#A8D5A2;}
  .gallery-item.available:hover{border-color:#6FA968;transform:translateY(-2px);}
  .gallery-item.available .g-band{color:#3A6B35;font-weight:700;}
  .gallery-item.added{cursor:pointer;opacity:1;background:var(--mid-soft);border-color:var(--mid);}
  .gallery-item.added:hover{border-color:#A6793A;transform:translateY(-2px);}
  .gallery-item.added .g-band{color:#7A5A26;font-weight:700;}
  .mode-toggle{display:flex;border:1px solid var(--line);border-radius:20px;overflow:hidden;font-size:13px;font-weight:600;}
  .mode-toggle button{border:none;background:transparent;padding:9px 16px;cursor:pointer;color:var(--muted);font-family:'Inter',sans-serif;}
  .mode-toggle button.active{background:var(--ink);color:var(--bg);}

  /* progress */
  .progress{display:flex;gap:6px;margin:28px 0 36px;}
  .progress .seg{flex:1;height:3px;background:var(--line);border-radius:2px;overflow:hidden;}
  .progress .seg.done{background:var(--accent);}

  .stage{display:none;}
  .stage.active{display:block;animation:fadein .3s ease;}
  @keyframes fadein{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

  .eyebrow{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--accent);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
  .eyebrow::before{content:"";width:18px;height:1px;background:var(--accent);}
  .stage h2{font-size:30px;font-weight:600;max-width:640px;line-height:1.15;}
  @media (max-width:700px){.stage h2{font-size:24px;} .hero-copy h1{font-size:26px;} .hero-copy{padding:32px 24px;}}
  .stage p.lede{color:var(--muted);font-size:15px;line-height:1.6;max-width:520px;margin-top:12px;}

  /* tier promo band */
  .tier-band{display:flex;border:1px solid var(--line);border-radius:2px;overflow:hidden;margin:28px 0;}
  .tier-band-item{flex:1;padding:16px 14px;text-align:center;border-right:1px solid var(--line);
                  cursor:pointer;transition:background .15s ease;}
  .tier-band-item:last-child{border-right:none;}
  .tier-band-item:hover{background:var(--accent-soft);}
  .tier-band-item:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
  .tier-band-item .n{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--muted);}
  .tier-band-item .l{font-weight:600;font-size:13px;margin-top:4px;}
  @media (max-width:700px){.tier-band{flex-wrap:wrap;}.tier-band-item{flex:1 1 33%;border-bottom:1px solid var(--line);}}

  .qty-row{display:flex;gap:14px;align-items:center;margin-top:28px;flex-wrap:wrap;}
  input[type=number], input[type=email], input[type=text], input[type=tel]{
    font-family:'IBM Plex Mono',monospace;font-size:20px;padding:13px 16px;border:1px solid var(--line);
    border-radius:2px;width:140px;outline:none;background:var(--panel);
  }
  input:focus{border-color:var(--accent);}
  .btn{font-family:'Inter',sans-serif;font-weight:600;font-size:14px;padding:12px 22px;border-radius:2px;border:1px solid var(--ink);background:var(--ink);color:var(--bg);cursor:pointer;transition:all .15s ease;}
  .btn:hover{background:transparent;color:var(--ink);}
  .btn:disabled{opacity:0.35;cursor:default;}
  .btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
  .btn-ghost:hover{border-color:var(--ink);}
  .btn-sm{padding:8px 14px;font-size:13px;}

  .tier-confirm{
    margin-top:22px;padding:14px 18px;border:1px solid var(--accent);background:var(--accent-soft);
    border-radius:2px;font-size:14px;display:none;
  }
  .tier-confirm.show{display:block;}

  /* categories */
  .cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px;}
  @media (max-width:800px){.cat-grid{grid-template-columns:repeat(2,1fr);}}
  .cat-card{border:1px solid var(--line);border-radius:2px;padding:20px 16px;background:var(--panel);cursor:pointer;transition:all .15s ease;
            display:flex;align-items:center;justify-content:space-between;gap:14px;}
  .cat-card:hover{border-color:var(--accent);transform:translateY(-2px);}
  .cat-card.disabled{opacity:0.4;cursor:default;}
  .cat-card.disabled:hover{transform:none;border-color:var(--line);}
  .cat-card .cat-text{min-width:0;}
  .cat-card .cat-icon{width:60px;flex:0 0 auto;}
  .cat-card .cat-icon svg{width:100%;height:auto;display:block;}
  .cat-card h3{font-size:15px;font-weight:600;}
  .cat-card .tag{font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--muted);text-transform:uppercase;margin-top:6px;display:block;}
  @media (max-width:500px){.cat-card .cat-icon{width:44px;}}

  /* range cards */
  .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px;}
  @media (max-width:900px){.grid{grid-template-columns:1fr;}}
  .grid + h2{margin-top:48px;}

  /* storage page — grouped into product-type sections (cabinets/sliding doors/filing/
     lockers/shelving), each showing its Low/Mid/High cards together */
  .storage-sections{margin-top:28px;}
  .storage-section-heading{font-size:22px;font-weight:600;line-height:1.2;margin-top:48px;}
  .storage-section-heading:first-child{margin-top:0;}
  .card{background:var(--panel);border:1px solid var(--line);border-radius:2px;display:flex;flex-direction:column;overflow:hidden;transition:box-shadow .2s ease, transform .2s ease;}
  .card:hover{box-shadow:0 12px 28px rgba(29,27,24,0.08);transform:translateY(-2px);}
  .card-band{padding:9px 16px;font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:0.06em;text-transform:uppercase;font-weight:500;display:flex;justify-content:space-between;}
  .card-band.low{background:var(--low-soft);color:#4E5D48;} .card-band.mid{background:var(--mid-soft);color:#7A5A26;} .card-band.high{background:var(--high-soft);color:#4A3221;}
  .card-art{height:120px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);background:repeating-linear-gradient(135deg, transparent, transparent 11px, rgba(0,0,0,0.02) 11px, rgba(0,0,0,0.02) 12px);}
  .card-art svg{width:70%;height:auto;}
  .card-link{font-size:12px;color:var(--accent);text-decoration:none;font-weight:600;display:inline-block;margin-top:2px;}
  .card-link:hover{text-decoration:underline;}
  .card-body{padding:18px;flex:1;display:flex;flex-direction:column;}
  .card-body h3{font-size:17px;font-weight:600;margin-bottom:6px;}
  .card-price{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--muted);margin-bottom:4px;}
  .card-price .disc{color:var(--accent);font-weight:600;}
  .card-desc{font-size:13px;line-height:1.5;color:#4A473F;margin:10px 0;flex:1;}
  .chip{font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--muted);border:1px solid var(--line);padding:3px 7px;border-radius:2px;display:inline-block;margin:2px 3px 2px 0;}
  .qty-inline{display:flex;gap:8px;align-items:center;margin-top:14px;}
  .qty-inline input{width:70px;font-size:15px;padding:8px 10px;}
  .size-label{display:block;font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:0.04em;margin-top:14px;}
  .size-select{display:block;width:100%;margin-top:6px;padding:9px 10px;border:1px solid var(--line);border-radius:2px;font-family:'Inter',sans-serif;font-size:13px;background:var(--panel);color:var(--ink);}
  .size-select:focus{border-color:var(--accent);outline:none;}
  .config-toggle{display:flex;gap:0;border:1px solid var(--line);border-radius:2px;overflow:hidden;margin-top:14px;}
  .config-toggle label{flex:1;text-align:center;padding:8px 6px;font-size:12px;font-weight:600;cursor:pointer;color:var(--muted);border-right:1px solid var(--line);}
  .config-toggle label:last-child{border-right:none;}
  .config-toggle input{display:none;}
  .config-toggle input:checked + span{color:var(--ink);}
  .config-toggle label.checked{background:var(--accent-soft);color:var(--ink);}
  .bench-users-wrap{margin-top:10px;display:none;}
  .bench-users-wrap.show{display:block;}
  .bench-note{font-size:10px;color:var(--muted);font-style:italic;margin-top:6px;line-height:1.4;}

  /* running spec sidebar-ish inline panel */
  .spec-panel{border:1px solid var(--line);border-radius:2px;background:var(--panel);padding:18px 20px;margin-top:32px;}
  .spec-panel h3{font-size:13px;font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);margin-bottom:12px;}
  .spec-line{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-top:1px solid var(--line);font-size:14px;gap:12px;}
  .spec-thumb{width:44px;height:44px;object-fit:contain;flex-shrink:0;border:1px solid var(--line);border-radius:2px;background:var(--bg);padding:3px;}
  .spec-thumb-icon{width:44px;height:44px;flex-shrink:0;border:1px solid var(--line);border-radius:2px;background:var(--bg);display:flex;align-items:center;justify-content:center;padding:4px;}
  .spec-thumb-icon svg{width:100%;height:100%;}
  @media (max-width:640px){
    .spec-line{flex-wrap:wrap;}
    .spec-line .left{flex:1 1 100%;}
    .line-price{margin-left:auto;}
  }
  .spec-line:first-of-type{border-top:none;}
  .spec-line .name{font-weight:600;}
  .spec-line .meta{color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:11px;}
  .spec-line .left{flex:1;}
  .qty-adjust{display:flex;align-items:center;gap:6px;}
  .qty-adjust button{width:24px;height:24px;border:1px solid var(--line);background:var(--panel);border-radius:2px;cursor:pointer;font-size:14px;line-height:1;color:var(--ink);}
  .qty-adjust button:hover{border-color:var(--accent);color:var(--accent);}
  .qty-adjust .qty-num{font-family:'IBM Plex Mono',monospace;font-size:13px;min-width:20px;text-align:center;}
  .remove-line{background:none;border:none;color:var(--muted);cursor:pointer;font-size:16px;line-height:1;padding:2px 4px;}
  .remove-line:hover{color:#B0413E;}
  .line-price{min-width:70px;text-align:right;}
  .spec-total{display:flex;justify-content:space-between;padding-top:14px;margin-top:6px;border-top:1px solid var(--ink);font-weight:600;font-size:15px;}
  .empty-spec{color:var(--muted);font-size:13px;padding:8px 0;}

  /* Zone grouping — only rendered when the spec spans more than one zone. */
  .zone-group{margin-top:18px;}
  .zone-group:first-child{margin-top:0;}
  .zone-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:8px;font-family:'IBM Plex Mono',monospace;font-size:12px;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);}
  .zone-head .zone-subtotal{font-weight:600;color:var(--ink);letter-spacing:0;}
  /* The first line in each group draws its own top border, so the group reads as a block. */
  .zone-group .spec-line:first-of-type{border-top:1px solid var(--line);}

  .actions-row{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap;}

  .note-box{margin-top:20px;padding:14px 16px;background:var(--mid-soft);border:1px solid var(--mid);border-radius:2px;font-size:13px;line-height:1.5;color:#5C441F;}

  /* email capture */
  /* The one piece of persuasion on the review page. Deliberately typographic rather than a
     coloured banner — the page is calm and a loud box would fight it. The rule above it does
     the separating work, so the line reads as a confident statement, not an advert. */
  .email-cta{margin:28px 0 0;padding-top:20px;border-top:1px solid var(--line);
             font-size:17px;font-weight:600;color:var(--dark);line-height:1.45;}
  .email-cta .email-cta-sub{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:4px;}
  .email-cta + .email-row{margin-top:14px;}
  .email-row{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap;}
  .privacy-note{font-size:12px;color:var(--muted);margin:8px 0 0;line-height:1.5;}
  .optional-contact{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
  .optional-contact-label{font-size:12px;color:var(--muted);margin:0 0 8px;font-style:italic;}
  .optional-contact .email-row{margin-top:0;}
  .email-row input{flex:1;min-width:220px;font-size:15px;padding:12px 14px;}
  .confirm-box{margin-top:20px;padding:18px 20px;border:1px solid var(--accent);background:var(--accent-soft);border-radius:2px;font-size:14px;display:none;}
  .confirm-box.show{display:block;}

  .contact-cta{
    position:fixed;right:24px;bottom:24px;z-index:50;background:var(--panel);color:var(--ink);
    border:1px solid var(--line);padding:13px 18px;border-radius:2px;font-family:'Inter',sans-serif;
    font-weight:600;font-size:13px;cursor:pointer;display:flex;align-items:center;gap:8px;
    box-shadow:0 8px 20px rgba(29,27,24,0.08);text-decoration:none;
  }
  .contact-cta:hover{border-color:var(--accent);color:var(--accent);}
  @media (max-width:640px){.contact-cta{right:16px;bottom:16px;padding:11px 14px;font-size:12px;}}

  .faq-section{margin-top:48px;border-top:1px solid var(--line);padding-top:32px;}
  .faq-section h3{font-size:13px;font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);margin-bottom:16px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{padding:14px 0;font-size:14px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
  .faq-q .arrow{transition:transform .2s ease;color:var(--muted);}
  .faq-item.open .faq-q .arrow{transform:rotate(180deg);}
  .faq-a{font-size:13px;color:var(--muted);line-height:1.6;padding-bottom:0;max-height:0;overflow:hidden;transition:all .2s ease;}
  /* max-height is the open-animation's end point, and overflow is hidden — so an answer
     taller than this is silently clipped. 375px is the tight case: the longest answer
     needs 245px there. Keep headroom, and re-check this figure when adding a long FAQ. */
  .faq-item.open .faq-a{padding-bottom:16px;max-height:420px;}

  footer{border-top:1px solid var(--line);padding:26px 0;margin-top:20px;font-size:12px;color:var(--muted);line-height:1.6;}