:root {
    --bg: #FFFFFF;
    --panel: #F6F5F2;
    --ink: #0B0B0A;
    --ink-soft: #6B6B66;
    --line: rgba(11,11,10,0.9);
    --line-strong: rgba(11,11,10,1);

    --base-white: #F1F1EC;
    --base-black: #1B1B1B;
    --base-lightgray: #969590;
    --base-darkgray: #6E6D66;
    --base-pink: #E88A9E;

    --charm-red: #C4281C;
    --charm-blue: #0057A6;
    --charm-yellow: #F5CD2F;
    --charm-green: #237841;
    --charm-purple: #7B2F97;
    --charm-orange: #E4761F;
    --charm-mint: #7FCBB6;
    --charm-coral: #F16A65;
  }

  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --bg: #0B0B0A;
      --panel: #161615;
      --ink: #F4F3EF;
      --ink-soft: #A3A29B;
      --line: rgba(244,243,239,0.9);
      --line-strong: rgba(244,243,239,1);
    }
  }
  :root[data-theme="dark"] {
    --bg: #0B0B0A;
    --panel: #161615;
    --ink: #F4F3EF;
    --ink-soft: #A3A29B;
    --line: rgba(244,243,239,0.9);
    --line-strong: rgba(244,243,239,1);
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }
  body { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
  h1, h2, h3 { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 400; line-height: 0.95; margin: 0; letter-spacing: -0.05em; }
  h3 { font-weight: 500; line-height: 1.1; letter-spacing: -0.03em; }
  a { color: inherit; }
  img { max-width: 100%; display: block; }
  button { font-family: inherit; }

  .micro { font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); }

  header {
    position: sticky; top: 0; top: env(safe-area-inset-top, 0px); z-index: 20;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 11px 32px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 16px;
  }
  #shop, #builder { scroll-margin-top: 92px; }
  @media (max-width: 719px) { header, .menu-top { padding: 10px 16px; } header .header-brand .wordmark { font-size: 27px; } header .header-brand .subline-logo { height: 14px; } }
  .header-nav, .header-right .hdr-social { display: none; }
  .header-right { display: flex; align-items: center; justify-content: flex-end; gap: 26px; }
  .header-nav a, .hdr-social { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 13.5px; letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none; color: var(--ink); }
  .header-nav a:hover, .hdr-social:hover { opacity: 0.6; }
  .hdr-social { color: var(--ink-soft); }
  @media (min-width: 720px) and (max-width: 1040px) {
    header { padding: 10px 20px; gap: 14px; }
    header .header-brand .wordmark { font-size: 25px; }
    header .header-brand .subline-logo { height: 13px; }
    .header-nav { gap: 18px !important; }
    .header-right { gap: 14px; }
    .header-nav a, .hdr-social { font-size: 12px; letter-spacing: 0.04em; }
  }
  @media (min-width: 720px) {
    header #menuToggle { display: none; }
    header .header-brand { grid-column: 1; justify-self: start; align-items: flex-start; }
    .header-nav { display: flex; gap: 34px; grid-column: 2; }
    .header-right { grid-column: 3; }
    .header-right .hdr-social { display: inline; }
  }
  .icon-btn { background: none; border: none; cursor: pointer; padding: 6px; color: var(--ink); justify-self: start; }
  .icon-btn.cart { justify-self: end; }
  .icon-btn svg { display: block; }
  .header-brand { display: flex; flex-direction: column; align-items: center; gap: 2px; text-decoration: none; }
  .header-brand .wordmark { font-family: 'Franklin Gothic Medium Cond', 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif; font-weight: 400; font-size: 31px; line-height: 1.05; letter-spacing: 0.12em; }
  .header-brand .subline { font-size: 10px; letter-spacing: 0.22em; color: var(--ink-soft); }
  .header-brand .subline-logo { height: 16px; width: auto; margin-top: 1px; filter: none; }
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .subline-logo, :root:not([data-theme="light"]) .footer-logo, :root:not([data-theme="light"]) .footer-round-logo { filter: invert(1); } }
  :root[data-theme="dark"] .subline-logo, :root[data-theme="dark"] .footer-logo, :root[data-theme="dark"] .footer-round-logo { filter: invert(1); }

  .menu-overlay {
    position: fixed; inset: 0; z-index: 60;
    background: var(--bg);
    display: flex; flex-direction: column;
    opacity: 0; pointer-events: none;
    transition: opacity 0.25s ease;
  }
  .menu-overlay.open { opacity: 1; pointer-events: auto; }
  .menu-top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 11px 32px; }
  .menu-links { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px; }
  .menu-links a { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 16px; text-decoration: none; color: var(--ink); }
  .menu-socials { display: flex; gap: 18px; justify-content: center; margin-top: 6px; }
  .menu-socials a { color: var(--ink-soft); text-decoration: none; font-size: 13px; }
  .menu-footer { display: flex; align-items: center; justify-content: space-between; padding: 22px 32px; }
  .menu-footer .wordmark { font-family: 'Franklin Gothic Medium Cond', 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif; font-weight: 500; font-size: 16px; letter-spacing: 0.1em; }
  .menu-footer .footer-logo { height: 32px; width: auto; }
  .menu-footer .rights { font-size: 11px; color: var(--ink-soft); }

  main { max-width: 1180px; margin: 0 auto; padding: 0 32px; }

  .hero-full { position: relative; width: 100%; height: 86vh; min-height: 520px; max-height: 900px; overflow: hidden; }
  .hero-full .ph-bg { position: absolute; inset: 0; background: repeating-linear-gradient(135deg, #DAD8D2, #DAD8D2 14px, #CFCDC6 14px, #CFCDC6 28px); }
  .hero-full .ph-tag { position: absolute; top: 18px; left: 18px; z-index: 3; font-family: 'IBM Plex Mono', monospace; font-size: 11px; line-height: 1.6; letter-spacing: 0.04em; text-transform: uppercase; color: rgba(0,0,0,0.5); }
  .hero-full .ph-tag b { display: block; font-weight: 600; color: rgba(0,0,0,0.7); }
  @media (max-width: 640px) { .hero-full .ph-tag { font-size: 9.5px; top: 14px; left: 14px; } }
  .hero-full .ph-overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(to top, rgba(0,0,0,0.6), rgba(0,0,0,0) 58%); }
  .hero-content { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; max-width: 1180px; margin: 0 auto; padding: 0 32px 56px; box-sizing: border-box; }
  .hero-content h1 { color: #fff; font-size: 76px; max-width: 800px; }
  .hero-content h1 .light { color: rgba(255,255,255,0.62); }
  .hero-cta { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }
  .hero-full .hero-cta .btn { background: #fff; color: #111; border-color: #fff; }
  .hero-full .hero-cta .btn.outline { background: transparent; color: #fff; border-color: #fff; }
  @media (max-width: 640px) { .hero-content h1 { font-size: 42px; } .hero-full { height: 70vh; } }
  .brand-statement { margin-top: 64px; }
  .brand-statement p { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 400; font-size: 58px; line-height: 1.0; letter-spacing: -0.05em; color: var(--ink-soft); margin: 0; }
  .brand-statement p .emph { color: var(--ink); }
  @media (max-width: 860px) { .brand-statement p { font-size: 38px; } }
  @media (max-width: 480px) { .brand-statement { margin-top: 48px; } .brand-statement p { font-size: 27px; line-height: 1.08; letter-spacing: -0.035em; } }

  .btn {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-weight: 600;
    font-size: 13.5px;
    letter-spacing: 0.02em;
    border: 1px solid var(--ink);
    border-radius: 0;
    padding: 14px 24px;
    cursor: pointer;
    background: var(--ink);
    color: var(--bg);
    transition: opacity 0.12s ease;
  }
  .btn:hover { opacity: 0.82; }
  .btn:active { opacity: 0.65; }
  .btn.outline { background: transparent; color: var(--ink); }
  .btn.block { width: 100%; }
  .btn.small { padding: 10px 16px; font-size: 12.5px; }

  .hero-visual { display: flex; justify-content: center; }
  .hero-frame { border: 1px solid var(--line); background: var(--panel); width: 100%; max-width: 360px; padding: 40px; display: flex; flex-direction: column; align-items: center; gap: 18px; }
  .hero-ring { position: relative; width: 220px; height: 220px; }
  .ring-slot { position: absolute; top: 50%; left: 50%; width: 0; height: 0; }
  .ring-tile { position: absolute; width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--ink); left: -10px; top: -10px; }
  .hero-caption { text-align: center; font-size: 11.5px; color: var(--ink-soft); line-height: 1.5; }

  /* Hero slideshow (layout after reference: full-bleed product slides, info bottom-right, dots + arrows strip) */
  .hero-full.hs { height: auto; min-height: 0; max-height: none; overflow: visible; }
  .hs-viewport { position: relative; width: 100%; height: min(80vh, 820px); min-height: 460px; overflow: hidden; background: var(--panel); }
  .hs-track { display: flex; height: 100%; transition: transform 0.8s cubic-bezier(0.65, 0, 0.35, 1); will-change: transform; }
  .hs-slide { position: relative; flex: 0 0 100%; height: 100%; overflow: hidden; }
  .hs-cover { position: absolute; inset: 0; background-size: cover; background-position: center; }
  .hs-img { position: absolute; left: 50%; top: 45%; transform: translate(-50%, -50%); width: min(84%, 1100px); height: 96%; object-fit: contain; }
  .hs-info { position: absolute; right: 32px; bottom: 34px; z-index: 2; text-align: right; max-width: 460px; }
  .hs-name { font-size: 34px; line-height: 1; margin: 0 0 12px; }
  .hs-spec { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; margin: 0 0 4px; }
  .hs-shop { margin-top: 18px; background: #fff; color: #0B0B0A; border: 1px solid #fff; border-radius: 0; padding: 13px 22px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 15px; cursor: pointer; transition: opacity 0.12s ease; }
  .hs-shop:hover { opacity: 0.85; }
  .hs-dark { color: #0B0B0A; }
  .hs-dark .hs-shop { background: #0B0B0A; color: #fff; border-color: #0B0B0A; }
  .hs-light { color: #fff; }
  .hs-dark .hs-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(255,255,255,0.82), rgba(255,255,255,0.4) 20%, rgba(255,255,255,0) 42%); }
  .hs-light .hs-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top left, rgba(0,0,0,0.45), rgba(0,0,0,0) 55%); }
  .hs-pause { position: absolute; top: 18px; right: 18px; z-index: 3; background: none; border: none; padding: 6px; cursor: pointer; color: #0B0B0A; }
  .hs-pause svg { display: block; fill: currentColor; }
  .hs-pause.paused svg { display: none; }
  .hs-pause.paused::before { content: ""; display: block; width: 0; height: 0; border-left: 14px solid currentColor; border-top: 8px solid transparent; border-bottom: 8px solid transparent; }
  .hs.on-light .hs-pause, .hs.on-light .hs-tag { color: #0B0B0A; }
  .hs.on-dark .hs-pause { color: #fff; }
  .hs .hs-tag { top: auto; bottom: 34px; left: 32px; }
  .hs.on-dark .hs-tag, .hs.on-dark .hs-tag b { color: rgba(255,255,255,0.8); }
  .hs-controls { display: flex; align-items: center; justify-content: space-between; padding: 18px 32px; border-bottom: 1px solid var(--line); background: var(--bg); }
  .hs-dots { display: flex; gap: 10px; }
  .hs-dot { width: 11px; height: 11px; border-radius: 50%; border: 1px solid var(--ink); background: transparent; padding: 0; cursor: pointer; }
  .hs-dot.active { background: var(--ink); }
  .hs-arrows { display: flex; gap: 14px; }
  .hs-arrow { background: none; border: none; padding: 4px; cursor: pointer; color: var(--ink); }
  .hs-arrow svg { display: block; }
  .hs-arrow:hover { opacity: 0.6; }
  .hs-diy { background: #F6F5F2; }
  .hs-photo { background: #D9D5D3; }
  .hs-photo-img { left: 0; top: 0; transform: none; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
  .hs-photo-mob { display: none; }
  .hs-diy-img { width: min(62%, 720px); height: 82%; }
  @media (max-width: 640px) {
    .hs-viewport { height: auto; aspect-ratio: 4 / 5; min-height: 0; }
    .hs-img { width: 100%; height: 66%; top: 37%; }
    .hs-info { right: 16px; bottom: 20px; left: 16px; max-width: none; }
    .hs-name { font-size: 24px; margin-bottom: 8px; }
    .hs-spec { font-size: 9.5px; }
    .hs-shop { margin-top: 12px; padding: 11px 18px; font-size: 14px; }
    .hs .hs-tag { display: none; }
    .hs-diy-img { width: 86%; height: 58%; top: 35%; }
    .hs-photo-img { top: 0; width: 100%; height: 100%; object-position: 50% 0%; }
    .hs-photo-desk { display: none; }
    .hs-photo-mob { display: block; }
    .hs-controls { padding: 14px 16px; }
  }
  @media (prefers-reduced-motion: reduce) { .hs-track { transition: none; } }
  .marquee { width: 100%; overflow: hidden; background: var(--ink); }
  .marquee-track { display: flex; width: max-content; white-space: nowrap; animation: marqueeScroll 26s linear infinite; }
  .marquee-track span { display: inline-flex; align-items: center; padding: 13px 0; font-family: 'IBM Plex Mono', monospace; font-weight: 500; font-size: 12px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--bg); }
  .marquee-track span i { font-style: normal; margin: 0 26px; opacity: 0.5; }
  @keyframes marqueeScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
  @media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }
  @media (max-width: 640px) { .marquee-track span { font-size: 10.5px; } .marquee-track span i { margin: 0 18px; } }


  .section-head { margin-top: 72px; padding-top: 28px; border-top: 1px solid var(--line); display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
  .section-head h2 { font-size: 44px; }
  .section-head h2 .light { color: var(--ink-soft); }
  @media (max-width: 640px) { .section-head h2 { font-size: 32px; } }

  .mode-toggle-wrap { display: flex; justify-content: center; margin-top: 26px; }
  .mode-toggle { display: inline-flex; border: 1px solid var(--line-strong); }
  .mode-btn { padding: 11px 22px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 600; font-size: 13px; border: none; background: transparent; cursor: pointer; color: var(--ink); }
  .mode-btn.active { background: var(--ink); color: var(--bg); }
  .mode-btn + .mode-btn { border-left: 1px solid var(--line-strong); }

  .builder { margin-top: 24px; display: grid; grid-template-columns: 1.1fr 1fr; border: 1px solid var(--line); }
  @media (max-width: 860px) { .builder { grid-template-columns: 1fr; } }
  .preview-pane { padding: 48px 20px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px; border-right: 1px solid var(--line); background: var(--panel); position: relative; max-width: 100%; }
  @media (max-width: 860px) { .preview-pane { border-right: none; border-bottom: 1px solid var(--line); } }

  .strand { display: flex; align-items: center; gap: 0; }
  .strand-stack { display: flex; flex-direction: column; gap: 16px; align-items: center; }

  .stud { width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--ink); position: relative; flex-shrink: 0; }

  .stud-pair { position: relative; display: flex; align-items: center; cursor: pointer; flex-shrink: 0; }
  .charm-cap { position: absolute; left: 50%; top: -8px; transform: translateX(-50%); width: 40px; height: 18px; border-radius: 3px; border: 1.5px solid var(--ink); z-index: 5; box-sizing: border-box; }
  .charm-cap.empty { top: -20px; background: transparent; border: 1.5px dashed #fff; mix-blend-mode: difference; display: flex; align-items: center; justify-content: center; }
  .charm-cap.empty::before { content: "+"; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 14px; font-weight: 700; line-height: 1; color: #fff; mix-blend-mode: difference; }

  .stud-col { position: relative; display: flex; flex-direction: column; align-items: center; gap: 2px; cursor: pointer; flex-shrink: 0; }
  .charm-cap-v { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 18px; height: 42px; border-radius: 3px; border: 1.5px solid var(--ink); z-index: 5; box-sizing: border-box; }
  .charm-cap-v.empty { background: transparent; border: 1.5px dashed #fff; mix-blend-mode: difference; display: flex; align-items: center; justify-content: center; }
  .charm-cap-v.empty::before { content: "+"; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 14px; font-weight: 700; line-height: 1; color: #fff; mix-blend-mode: difference; }

  .price-tag { display: flex; align-items: baseline; gap: 10px; }
  .price-tag .amount { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 700; font-size: 32px; }
  .price-tag .label { color: var(--ink-soft); font-size: 12.5px; }

  .cta-row { display: flex; gap: 10px; width: 100%; max-width: 320px; }
  .cta-row .btn { flex: 1; }

  .toast { position: absolute; bottom: -18px; left: 50%; transform: translate(-50%, 0); background: var(--ink); color: var(--bg); padding: 10px 18px; font-size: 12.5px; opacity: 0; pointer-events: none; transition: opacity 0.2s ease, bottom 0.2s ease; white-space: nowrap; }
  .toast.show { opacity: 1; bottom: 10px; }

  .controls-pane { padding: 40px 32px; }
  .control-block + .control-block { margin-top: 40px; }
  .control-block h3 { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 500; font-size: 14px; margin-bottom: 18px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-soft); }

  .swatches { display: flex; gap: 16px; flex-wrap: wrap; }
  .swatch { width: 74px; height: 74px; border-radius: 8px; border: none; cursor: pointer; background-color: transparent; }
  .swatch.selected { outline: 2px solid var(--ink); outline-offset: 6px; }

  .charm-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
  .charm-btn { border: 1px solid var(--line); background: var(--panel); padding: 16px 6px 14px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 8px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
  .charm-btn .swatch-preview { width: 100%; max-width: 84px; aspect-ratio: 84 / 51; height: auto; border-radius: 4px; border: none; }
  @media (max-width: 480px) { .charm-grid { grid-template-columns: repeat(3, 1fr); } }
  .charm-btn .cname { font-size: 14px; font-weight: 500; }
  .charm-btn .cprice { font-size: 14px; color: var(--ink-soft); }
  .charm-btn.selected { border-color: var(--ink); background: var(--bg); }
  .charm-btn:disabled { opacity: 0.3; cursor: not-allowed; }

  .hint { font-size: 12px; color: var(--ink-soft); margin-top: 16px; line-height: 1.6; }

  .steps { margin-top: 26px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
  @media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
  .step { padding: 26px; background: var(--panel); }
  .step .micro { margin-bottom: 12px; }
  .step h3 { font-size: 16px; margin-bottom: 8px; }
  .step p { font-size: 13px; color: var(--ink-soft); margin: 0; line-height: 1.6; }

  .grid { margin-top: 26px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
  @media (max-width: 780px) { .grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 520px) { .grid { grid-template-columns: 1fr; } }
  .card { background: var(--panel); }
  .card-swatch { height: 108px; display: flex; align-items: center; justify-content: center; gap: 5px; border-bottom: 1px solid var(--line); }
  .mini-stud { width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--ink); }
  .card-body { padding: 18px; }
  .card-body h3 { font-size: 15px; margin-bottom: 4px; }
  .card-body .desc { font-size: 12.5px; color: var(--ink-soft); margin: 0 0 10px; }
  .card-body .price { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 600; font-size: 15px; }

  .newsletter { margin-top: 80px; border: 1px solid var(--ink); padding: 40px 36px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
  .newsletter h2 { font-size: 22px; max-width: 340px; }
  .newsletter-form { display: flex; gap: 0; flex: 1; min-width: 260px; max-width: 420px; flex-wrap: wrap; }
  .newsletter-form input { flex: 1; border: 1px solid var(--line-strong); border-right: none; padding: 12px 14px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 13.5px; background: var(--panel); color: var(--ink); }
  .newsletter-form button:disabled { opacity: 0.55; cursor: not-allowed; }
  .newsletter-msg { flex-basis: 100%; font-size: 12px; margin: 10px 0 0; display: none; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
  .newsletter-msg.show { display: block; }
  .newsletter-msg.error { color: #E8231A; }
  .newsletter-msg.success { color: var(--ink-soft); }

  footer { margin-top: 60px; border-top: 1px solid var(--line); padding: 44px 32px 56px; }
  .footer-inner { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; font-size: 12.5px; color: var(--ink-soft); }
  @media (max-width: 680px) { .footer-inner { grid-template-columns: 1fr; } }
  .footer-inner strong { color: var(--ink); display: block; margin-bottom: 12px; font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }
  .footer-inner ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }

  .intro-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: env(safe-area-inset-top, 24px) 24px env(safe-area-inset-bottom, 24px);
    transition: opacity 0.5s ease;
  }
  .intro-overlay.hidden { opacity: 0; pointer-events: none; }
  .skip-btn {
    position: absolute;
    top: env(safe-area-inset-top, 24px);
    right: 24px;
    background: none;
    border: none;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 12.5px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink-soft);
    cursor: pointer;
    padding: 8px;
  }
  .skip-btn:hover { color: var(--ink); }
  .intro-content { display: flex; flex-direction: column; align-items: center; gap: 26px; max-width: 360px; }
  .intro-logo { width: 34px; height: 34px; }
  .intro-media { width: 260px; height: 260px; display: flex; align-items: center; justify-content: center; }
  .intro-media video { width: 100%; height: 100%; object-fit: cover; border: 1px solid var(--line); }
  .intro-ring-wrap { animation: spin 4s linear 1; }
  @media (prefers-reduced-motion: reduce) { .intro-ring-wrap { animation: none; } }
  @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
  #siteContent { opacity: 0; transition: opacity 0.5s ease; }
  #siteContent.visible { opacity: 1; }

  .shop-layout { margin-top: 28px; }
  .section-head.shop-head { justify-content: flex-start; gap: 10px 28px; }
  .shop-head h2 .slash { margin-left: 2px; }
  .shop-cats { display: flex; gap: 6px 28px; flex-wrap: wrap; align-items: baseline; }
  .shop-cats button { background: none; border: none; padding: 0; cursor: pointer; font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 400; font-size: 44px; line-height: 0.95; letter-spacing: -0.05em; color: var(--ink-soft); transition: color 0.15s ease; }
  .shop-cats button:hover { color: var(--ink); }
  .shop-cats button.active { color: var(--ink); }
  @media (max-width: 860px) { .shop-cats button { font-size: 34px; } }
  @media (max-width: 640px) {
    .section-head.shop-head { flex-direction: column; align-items: flex-start; gap: 14px; }
    .shop-head h2 .slash { display: none; }
    .shop-cats { flex-wrap: nowrap; overflow-x: auto; width: 100%; gap: 22px; padding-bottom: 4px; scrollbar-width: none; }
    .shop-cats::-webkit-scrollbar { display: none; }
    .shop-cats button { font-size: 24px; letter-spacing: -0.035em; white-space: nowrap; flex-shrink: 0; }
  }

  .feed-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; background: none; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
  @media (max-width: 560px) { .feed-grid { grid-template-columns: 1fr; border-left: none; } .feed-card { border-right: none !important; } }
  .feed-card { background: none; cursor: pointer; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .feed-thumb { height: auto; aspect-ratio: 1 / 1; background: var(--panel); overflow: hidden; display: flex; align-items: center; justify-content: center; gap: 4px; flex-wrap: wrap; padding: 10px; }
  .feed-thumb img { transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1); }
  .feed-thumb .mini-stud { transition: transform 0.35s ease; }
  .feed-card:hover .feed-thumb img { transform: scale(1.06); }
  .feed-card:hover .feed-thumb .mini-stud { transform: scale(1.1); }
  .feed-card.soon { cursor: default; }
  .feed-card.soon .feed-thumb { opacity: 0.35; }
  .feed-info { padding: 16px 18px 20px; display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
  .feed-info h3 { font-size: 17px; font-weight: 400; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; margin: 0; }
  .feed-info .feed-price { font-size: 15.5px; color: var(--ink-soft); white-space: nowrap; }
  .feed-cat { display: none; }

  .accordion { margin-top: 40px; border-top: 1px solid var(--line); width: 100%; }
  .acc-item { border-bottom: 1px solid var(--line); }
  .acc-head { width: 100%; text-align: left; background: none; border: none; padding: 16px 4px; display: flex; align-items: center; justify-content: space-between; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 600; font-size: 14px; cursor: pointer; color: var(--ink); }
  .acc-head .acc-icon { font-size: 16px; font-weight: 400; }
  .acc-body { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; font-size: 13px; color: var(--ink-soft); line-height: 1.6; }
  .acc-body-inner { padding: 0 4px 18px; }
  .acc-item.open .acc-body { max-height: 240px; }

  .contact-view { display: none; max-width: 900px; margin: 0 auto; padding: 48px 32px 100px; }
  .contact-view.open { display: block; }
  .contact-logo-wrap { display: flex; justify-content: center; margin-bottom: 22px; }
  .contact-logo-wrap img { height: 52px; width: auto; }
  @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .contact-logo-wrap img { filter: invert(1); } }
  :root[data-theme="dark"] .contact-logo-wrap img { filter: invert(1); }
  .contact-time { text-align: center; font-family: 'IBM Plex Mono', monospace; font-size: 12.5px; letter-spacing: 0.04em; color: var(--ink-soft); margin: 0 0 32px; }
  .contact-label { font-family: 'IBM Plex Mono', monospace; font-size: 13px; margin: 0 0 18px; }
  .cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
  @media (max-width: 560px) { .cf-row { grid-template-columns: 1fr; } }
  .contact-form input, .contact-form select, .contact-form textarea {
    width: 100%; box-sizing: border-box; border: 1px solid var(--line-strong); background: var(--panel);
    padding: 14px 16px; font-family: 'IBM Plex Mono', monospace; font-size: 12.5px; color: var(--ink);
  }
  .contact-form select { margin-bottom: 16px; appearance: none; cursor: pointer; }
  .contact-form textarea { margin-bottom: 22px; resize: vertical; min-height: 140px; }
  .cf-send { background: var(--ink); color: var(--bg); border: none; padding: 13px 30px; font-family: 'IBM Plex Mono', monospace; font-weight: 600; font-size: 12.5px; letter-spacing: 0.03em; cursor: pointer; }
  .cf-send:hover { opacity: 0.88; }
  .cf-error { color: #E8231A; font-family: 'IBM Plex Mono', monospace; font-size: 12px; margin: -10px 0 16px; display: none; }
  .cf-error.show { display: block; }
  .cf-success { color: var(--ink); font-family: 'IBM Plex Mono', monospace; font-size: 12px; margin: -10px 0 16px; display: none; }
  .cf-success.show { display: block; }
  .cf-send:disabled { opacity: 0.55; cursor: not-allowed; }

  .cart-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.35); z-index: 65; opacity: 0; pointer-events: none; transition: opacity 0.25s ease; }
  .cart-backdrop.open { opacity: 1; pointer-events: auto; }
  .cart-drawer { position: fixed; top: 0; right: 0; height: 100%; width: 380px; max-width: 92vw; background: var(--bg); border-left: 1px solid var(--line); z-index: 70; display: flex; flex-direction: column; transform: translateX(100%); transition: transform 0.3s ease; }
  .cart-drawer.open { transform: translateX(0); }
  .cart-head { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--line); }
  .cart-head h3 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.04em; margin: 0; }
  .cart-items { flex: 1; overflow-y: auto; padding: 16px 24px; }
  .cart-empty { font-size: 13px; color: var(--ink-soft); margin-top: 20px; }
  .cart-item { display: flex; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .cart-item-swatch { width: 44px; height: 44px; flex-shrink: 0; border: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 2px; background: var(--panel); }
  .cart-item-swatch .mini-stud { width: 10px; height: 10px; }
  .cart-item-info { flex: 1; }
  .cart-item-info .name { font-size: 13.5px; font-weight: 500; margin: 0 0 2px; }
  .cart-item-info .meta { font-size: 12px; color: var(--ink-soft); margin: 0 0 6px; }
  .cart-item-info .price { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 600; font-size: 14px; }
  .cart-item-remove { background: none; border: none; color: var(--ink-soft); font-size: 12px; text-decoration: underline; cursor: pointer; padding: 0; align-self: flex-start; }
  .cart-item-remove:hover { color: var(--ink); }
  .cart-foot { border-top: 1px solid var(--line); padding: 20px 24px; }
  .cart-subtotal { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 16px; }
  .cart-subtotal .amount { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 500; font-size: 24px; letter-spacing: -0.03em; }

  .checkout-view { display: none; max-width: 760px; margin: 0 auto; padding: 48px 32px 100px; }

  .about-view { display: none; max-width: 680px; margin: 0 auto; padding: 64px 32px 100px; }
  .legal-view { display: none; max-width: 680px; margin: 0 auto; padding: 64px 32px 100px; }
  .legal-view.open { display: block; }
  .product-view { display: none; --pv-tint: #F6F5F2; background: linear-gradient(to bottom, var(--pv-tint) 0px, #ffffff 820px, #ffffff 100%); }
  .product-view.open { display: block; }
  .pv-back { display: block; max-width: 1180px; margin: 0 auto; padding: 24px 32px 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 12.5px; color: var(--ink-soft); text-decoration: none; cursor: pointer; }
  .pv-back:hover { color: var(--ink); }
  .pv-title { max-width: 1180px; margin: 18px auto 0; padding: 0 32px; font-size: 38px; }
  @media (max-width: 640px) { .pv-title { font-size: 28px; } }
  .pv-stack { margin-top: 18px; display: flex; flex-direction: column; gap: 0; }
  .pv-stack-section { width: 100%; max-width: 640px; margin: 0 auto; padding: 40px 32px 0; text-align: center; }
  .pv-divider { width: 100%; margin-top: 72px; border-top: 1px solid var(--line); }
  #pvSectionWorn { max-width: 640px; }
  #pvSection3D { max-width: 840px; }
  .pv-stack-label { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 12px; }
  .pv-stack-media { position: relative; width: 100%; aspect-ratio: 4 / 5; max-height: 620px; overflow: hidden; background: transparent; }
  .pv-stack-media img { width: 100%; height: 100%; object-fit: contain; }
  .pv-stack-media-3d { aspect-ratio: 10 / 11; max-width: 720px; max-height: none; margin: 0 auto; }
  .pv-stack-media-worn { aspect-ratio: 3 / 4; max-height: none; }
  .pv-hero-3d-caption { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); background: rgba(17,17,17,0.6); color: #fff; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 11px; letter-spacing: 0.02em; padding: 7px 14px; border-radius: 999px; pointer-events: none; white-space: nowrap; z-index: 3; }
  .pv-hero-placeholder { width: 100%; height: 100%; background: repeating-linear-gradient(135deg, #DAD8D2, #DAD8D2 14px, #CFCDC6 14px, #CFCDC6 28px); display: flex; align-items: center; justify-content: center; text-align: center; padding: 24px; }
  .pv-hero-placeholder span { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 15px; font-weight: 600; color: rgba(0,0,0,0.65); max-width: 280px; background: rgba(255,255,255,0.85); padding: 14px 20px; border-radius: 999px; }
  .pv-three-slot { width: 100%; height: 100%; position: relative; }
  .pv-stack-caption { margin: 18px 0 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 13.5px; line-height: 1.6; color: rgba(0,0,0,0.55); }
  .pv-desc { max-width: 640px; margin: 22px auto 0; padding: 0; font-size: 14px; line-height: 1.7; color: var(--ink-soft); }
  .pv-configure-link { display: inline-block; margin-top: 18px; background: none; border: none; padding: 0; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 14px; font-weight: 600; text-decoration: underline; text-underline-offset: 2px; cursor: pointer; }
  .pv-configure-link:hover { opacity: 0.72; }
  .pv-bar { position: fixed; left: 50%; bottom: 25px; transform: translateX(-50%); z-index: 45; display: flex; align-items: center; gap: 14px; background: #fff; border-radius: 0; border: 1px solid var(--line-strong); box-shadow: 0 11px 36px rgba(0,0,0,0.14); padding: 9px 11px 9px 9px; max-width: calc(100vw - 32px); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
  .pv-bar-thumb { width: 46px; height: 46px; border-radius: 0; overflow: hidden; background: #F1F1EC; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
  .pv-bar-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .pv-bar-info { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
  .pv-bar-name { font-size: 15px; font-weight: 600; color: #111; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 210px; }
  .pv-bar-cat { font-size: 12.5px; color: #8a8a86; white-space: nowrap; }
  .pv-bar-swatches { display: flex; gap: 7px; padding: 0 2.5px; flex-shrink: 0; }
  .pv-bar-swatch { width: 25px; height: 25px; border-radius: 50%; border: 1.75px solid transparent; box-shadow: 0 0 0 1px rgba(0,0,0,0.12); cursor: pointer; padding: 0; flex-shrink: 0; }
  .pv-bar-swatch.selected { border-color: var(--ink); box-shadow: none; }
  .pv-bar-price { font-weight: 700; font-size: 15.5px; color: #111; white-space: nowrap; flex-shrink: 0; }
  .pv-bar-cta { background: var(--ink); color: var(--bg); border: none; border-radius: 0; padding: 14px 25px; font-weight: 600; font-size: 15px; cursor: pointer; white-space: nowrap; flex-shrink: 0; }
  .pv-bar-cta:hover { opacity: 0.9; }
  @media (max-width: 640px) { .pv-bar { max-width: calc(100vw - 16px); overflow-x: auto; gap: 12px; padding: 8px; } .pv-bar-thumb, .pv-bar-info { display: none; } .pv-bar-swatches { gap: 6px; } .pv-bar-swatch { width: 22px; height: 22px; } .pv-bar-price { font-size: 14.5px; } .pv-bar-cta { padding: 13px 18px; font-size: 14px; } }
  .pv-related { max-width: 1180px; margin: 64px auto 0; padding: 0 32px 130px; }
  .pv-related-label { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 400; font-size: 28px; line-height: 1.2; letter-spacing: -0.05em; margin-bottom: 18px; }
  .pv-related-row { display: flex; gap: 22px; overflow-x: auto; padding-bottom: 8px; }
  .pv-related-card { flex: 0 0 260px; cursor: pointer; }
  .pv-related-thumb { width: 260px; height: 260px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; display: flex; align-items: center; justify-content: center; gap: 10px; }
  .pv-related-thumb img { width: 100%; height: 100%; object-fit: contain; }
  .pv-related-name { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 14px; margin-top: 10px; color: var(--ink); }
  .pv-related-price { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 13px; color: var(--ink-soft); }
  @media (max-width: 640px) { .pv-related-card { flex: 0 0 200px; } .pv-related-thumb { width: 200px; height: 200px; } }
  .legal-view h1 { font-size: 30px; margin-bottom: 8px; }
  .legal-view .legal-note { font-size: 12.5px; color: var(--ink-soft); border: 1px dashed var(--line-strong); padding: 12px 14px; margin: 20px 0 36px; }
  .legal-view h2 { font-size: 18px; font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 500; letter-spacing: -0.03em; margin: 36px 0 12px; }
  .legal-view p, .legal-view li { font-size: 14px; line-height: 1.7; color: var(--ink-soft); margin: 0 0 12px; }
  .legal-view ul { padding-left: 18px; margin: 0 0 16px; }
  .about-view.open { display: block; }
  .about-view h1 { font-size: 34px; max-width: 560px; margin-bottom: 28px; }
  .about-view p { font-size: 15px; line-height: 1.7; color: var(--ink-soft); margin: 0 0 20px; max-width: 540px; }
  .about-values { margin-top: 44px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
  @media (max-width: 640px) { .about-values { grid-template-columns: 1fr; } }
  .about-values div { background: var(--panel); padding: 22px; }
  .about-values p.micro { margin: 0 0 8px; }
  .about-values h3 { font-size: 15px; margin: 0; }
  .checkout-view.open { display: block; }
  .checkout-back { background: none; border: none; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 13px; color: var(--ink-soft); cursor: pointer; padding: 0; margin-bottom: 24px; }
  .checkout-back:hover { color: var(--ink); }
  .checkout-summary { border: 1px solid var(--line); padding: 20px; margin-bottom: 32px; }
  .checkout-summary .co-row { display: flex; justify-content: space-between; font-size: 13.5px; padding: 8px 0; border-bottom: 1px solid var(--line); }
  .checkout-summary .co-row:last-child { border-bottom: none; }
  .checkout-summary .co-total { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 600; font-size: 17px; }
  .checkout-form h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-weight: 500; margin: 0 0 14px; color: var(--ink-soft); }
  .checkout-form .cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
  .checkout-form input { width: 100%; box-sizing: border-box; border: 1px solid var(--line-strong); background: var(--panel); padding: 13px 14px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 13.5px; color: var(--ink); }
  .pay-box { border: 1px solid var(--line); padding: 22px 20px; margin-bottom: 18px; }
  .pay-box h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; margin: 0 0 12px; color: var(--ink-soft); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
  .pay-text { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 17px; line-height: 1.35; letter-spacing: -0.02em; margin: 0 0 18px; color: var(--ink); }
  .pay-methods { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
  .pay-methods span { border: 1px solid var(--line-strong); padding: 6px 11px; font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; }
  .pay-lines div { display: flex; justify-content: space-between; gap: 12px; font-size: 13.5px; padding: 8px 0; border-top: 1px solid var(--line); }
  .pay-lines div span:last-child { color: var(--ink-soft); text-align: right; }
  .pay-btn { font-size: 15px; padding: 17px 24px; }
  .pay-secure { display: flex; align-items: center; justify-content: center; gap: 7px; font-size: 12px; color: var(--ink-soft); margin: 12px 0 0; text-align: center; }
  .pay-secure svg { flex-shrink: 0; }
  .pay-preview { margin-top: 22px; border: 1px dashed var(--line-strong); padding: 14px 16px; font-size: 13px; line-height: 1.55; color: var(--ink-soft); }
  .pay-preview p { margin: 0; }
  .pay-preview .pay-preview-tag { font-family: 'IBM Plex Mono', monospace; font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink); margin-bottom: 6px; }
  .hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; }
  .ua-drawer { z-index: 72; }
  .ua-backdrop { z-index: 71; }
  .ua-body { flex: 1; overflow-y: auto; padding: 22px 24px 28px; }
  .ua-tabs { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-strong); margin-bottom: 20px; }
  .ua-tab { background: transparent; border: none; padding: 11px 8px; font-size: 13px; cursor: pointer; color: var(--ink); }
  .ua-tab.active { background: var(--ink); color: var(--bg); }
  .ua-form input { width: 100%; box-sizing: border-box; border: 1px solid var(--line-strong); background: var(--panel); padding: 13px 14px; font-size: 14px; color: var(--ink); margin-bottom: 12px; font-family: inherit; border-radius: 0; }
  .ua-msg { font-size: 12.5px; line-height: 1.5; margin: 2px 0 12px; min-height: 0; }
  .ua-msg:empty { display: none; }
  .ua-msg.error { color: #C4281C; }
  .ua-msg.ok { color: var(--ink-soft); }
  .ua-link { background: none; border: none; padding: 0; margin-top: 14px; font-size: 12.5px; text-decoration: underline; text-underline-offset: 2px; color: var(--ink-soft); cursor: pointer; }
  .ua-link:hover { color: var(--ink); }
  .ua-note { font-size: 12.5px; line-height: 1.5; color: var(--ink-soft); margin: 22px 0 0; }
  .ua-email { font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; font-size: 20px; letter-spacing: -0.03em; margin: 4px 0 26px; word-break: break-all; }
  .ua-sub { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; font-weight: 500; color: var(--ink-soft); margin: 0 0 8px; }
  .ua-order { border-top: 1px solid var(--line); padding: 14px 0; }
  .ua-order-top { display: flex; justify-content: space-between; gap: 10px; font-size: 13.5px; }
  .ua-order-top strong { font-weight: 600; }
  .ua-order-meta { font-size: 12px; color: var(--ink-soft); margin: 4px 0 0; line-height: 1.45; }
  .ua-status { font-family: 'IBM Plex Mono', monospace; font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; border: 1px solid var(--line-strong); padding: 2px 6px; margin-left: 6px; }
  .ua-empty { font-size: 13px; color: var(--ink-soft); border-top: 1px solid var(--line); padding: 14px 0; margin: 0; }
  .ua-orders { margin-bottom: 26px; border-bottom: 1px solid var(--line); }
  .done-overlay { position: fixed; inset: 0; z-index: 400; background: rgba(0,0,0,0.45); display: flex; align-items: center; justify-content: center; padding: 16px; }
  .done-overlay[hidden] { display: none !important; }
  .done-card { background: var(--bg); border: 1px solid var(--line-strong); max-width: 440px; width: 100%; padding: 30px 28px; }
  .done-card h2 { font-size: 40px; margin: 8px 0 16px; }
  .done-card p.done-text { font-size: 15px; line-height: 1.55; color: var(--ink-soft); margin: 0 0 22px; }
  .pay-btn:disabled { opacity: 0.6; cursor: progress; }
  .payment-note { font-size: 12px; color: var(--ink-soft); border: 1px dashed var(--line-strong); padding: 14px; margin: 24px 0; }
  /* Product view typography: Instrument Sans throughout (reference: pauleasterlin.com) */
  .product-view { --pv-sans: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
  .product-view .pv-back { font-family: var(--pv-sans); font-size: 15px; letter-spacing: -0.02em; }
  .product-view .pv-title { letter-spacing: -0.05em; line-height: 0.95; }
  .product-view .pv-stack-label { font-family: var(--pv-sans); font-weight: 400; font-size: 24px; line-height: 0.95; letter-spacing: -0.05em; text-transform: none; color: var(--ink); margin: 0 0 18px; }
  .product-view .pv-desc, .product-view .pv-stack-caption { font-family: var(--pv-sans); font-weight: 400; font-size: 19px; line-height: 1.25; letter-spacing: -0.03em; color: var(--ink-soft); }
  .product-view .pv-configure-link { font-family: var(--pv-sans); font-weight: 400; font-size: 18px; letter-spacing: -0.03em; text-underline-offset: 3px; }
  .product-view .pv-hero-3d-caption, .product-view .pv-hero-placeholder span { font-family: var(--pv-sans); font-weight: 400; letter-spacing: -0.02em; }
  .product-view .pv-hero-placeholder span { font-size: 16px; }
  .product-view .pv-related-name { font-family: var(--pv-sans); font-size: 17px; letter-spacing: -0.03em; }
  .product-view .pv-related-price { font-family: var(--pv-sans); font-size: 15px; letter-spacing: -0.02em; }
  .product-view .pv-bar, .product-view .pv-bar-cta { font-family: var(--pv-sans); }
  .product-view .pv-bar-name { font-weight: 500; font-size: 16px; letter-spacing: -0.03em; }
  .product-view .pv-bar-cat { font-size: 13px; letter-spacing: -0.01em; }
  .product-view .pv-bar-price { font-weight: 500; font-size: 16px; letter-spacing: -0.02em; }
  .product-view .pv-bar-cta { font-weight: 500; font-size: 15px; letter-spacing: -0.01em; }
  @media (max-width: 640px) {
    .product-view .pv-stack-label { font-size: 20px; }
    .product-view .pv-desc, .product-view .pv-stack-caption { font-size: 16.5px; }
    .product-view .pv-configure-link { font-size: 16px; }
    .product-view .pv-bar-price { font-size: 15px; }
    .product-view .pv-bar-cta { font-size: 14px; }
  }