/* -------- 0. FULL-BLEED RESET: remove the default white page frame -------- */
  html, body { margin: 0; padding: 0; background: #0b0a07; }
  /* -------- 1. DESIGN TOKENS (scoped to the page wrapper) -------- */
  #nbp {
    /* palette — dark-luxury black & gold */
    --ink:      #0b0a07;   /* warm near-black ground            */
    --ink-2:    #100e09;   /* alternating section ground        */
    --panel:    #16130c;   /* raised card surface (warm)        */
    --line:     #2a2414;   /* gold-tinted hairline               */
    --line-2:   #4a3f22;   /* brighter bronze hairline / hover   */
    --gold:     #caa24e;   /* core metallic gold (brand)         */
    --gold-bright:#f0d489; /* champagne highlight / sheen        */
    --gold-deep:#8a6d2e;   /* pressed / shadow gold              */
    --paper:    #f2ece0;   /* warm parchment text                */
    --mute:     #9d9079;   /* warm taupe secondary text          */

    /* metallic gold sheen for buttons + accents */
    --gold-foil: linear-gradient(160deg, #f4dc97 0%, #caa24e 42%, #a9842f 70%, #e6c87f 100%);

    /* type */
    --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;

    /* rhythm */
    --wrap: 1140px;
    --pad: clamp(20px, 5vw, 56px);

    /* base */
    color: var(--paper);
    background: var(--ink);
    font-family: var(--sans);
    font-size: clamp(15px, 1vw + 13px, 17px);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    position: relative;
    overflow-x: hidden;
  }

  /* scoped reset so we don't leak resets into the theme */
  #nbp *,
  #nbp *::before,
  #nbp *::after { box-sizing: border-box; }
  #nbp p, #nbp h1, #nbp h2, #nbp h3, #nbp h4,
  #nbp ul, #nbp figure, #nbp blockquote { margin: 0; }
  #nbp ul { list-style: none; padding: 0; }
  #nbp a { color: inherit; text-decoration: none; }
  #nbp img, #nbp svg { display: block; max-width: 100%; }
  #nbp :focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
    border-radius: 2px;
  }

  /* -------- 2. SHARED LAYOUT HELPERS -------- */
  #nbp .wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad); }
  #nbp .section { padding-block: clamp(64px, 9vw, 120px); position: relative; }
  #nbp .section--alt { background: var(--ink-2); }

  /* mono "spec" eyebrow used above every section heading */
  #nbp .eyebrow {
    font-family: var(--mono);
    font-size: .72rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--gold);
    display: inline-flex;
    align-items: center;
    gap: .6em;
    margin-bottom: 18px;
  }
  #nbp .eyebrow::before {
    content: "";
    width: 26px; height: 1px;
    background: var(--gold);
    opacity: .8;
  }

  #nbp h2.title {
    font-size: clamp(1.9rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.04;
    letter-spacing: -.02em;
  }
  #nbp .lede { color: var(--mute); max-width: 56ch; margin-top: 18px; font-size: 1.05rem; }

  /* crop-mark / blueprint corners — the page's signature device */
  #nbp .ticked { position: relative; }
  #nbp .ticked::before,
  #nbp .ticked::after {
    content: "";
    position: absolute;
    width: 12px; height: 12px;
    border: 1px solid var(--gold);
    opacity: .55;
    pointer-events: none;
  }
  #nbp .ticked::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
  #nbp .ticked::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

  /* -------- 3. BUTTONS -------- */
  #nbp .btn {
    display: inline-flex; align-items: center; gap: .55em;
    font-weight: 700; font-size: .95rem; letter-spacing: .01em;
    padding: 14px 22px;
    background: var(--gold-foil); color: #1a1407;
    border: 1px solid var(--gold-deep);
    cursor: pointer;
    transition: transform .15s ease, box-shadow .25s ease, filter .2s ease;
  }
  #nbp .btn:hover { transform: translateY(-2px); filter: brightness(1.06); box-shadow: 0 12px 34px -14px rgba(202,162,78,.7); }
  #nbp .btn--ghost {
    background: transparent; color: var(--paper);
    border-color: var(--line-2);
  }
  #nbp .btn--ghost:hover { border-color: var(--gold); box-shadow: none; }
  #nbp .btn svg { width: 16px; height: 16px; }

  /* -------- 5. HERO -------- */
  #nbp .hero { position: relative; padding-block: clamp(56px, 8vw, 96px); }
  /* faint blueprint grid behind the hero */
  #nbp .hero::before {
    content: ""; position: absolute; inset: 0; z-index: 0;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(120% 80% at 70% 30%, #000 30%, transparent 75%);
            mask-image: radial-gradient(120% 80% at 70% 30%, #000 30%, transparent 75%);
    opacity: .5;
  }
  #nbp .hero .wrap { position: relative; z-index: 1; }
  #nbp .hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
  #nbp .hero h1 {
    font-size: clamp(2.6rem, 7vw, 5rem);
    font-weight: 800; line-height: .95; letter-spacing: -.03em;
    margin: 14px 0 0;
  }
  #nbp .hero h1 .accent {
    display: block;
    background: var(--gold-foil);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: var(--gold);
  }
  #nbp .hero p.sub { color: var(--mute); font-size: 1.12rem; max-width: 46ch; margin: 22px 0 30px; }
  #nbp .hero .actions { display: flex; flex-wrap: wrap; gap: 14px; }

  /* hero vial visual */
  #nbp .vial-stage { position: relative; aspect-ratio: 1 / 1; display: grid; place-items: center; }
  #nbp .vial-stage svg { width: min(360px, 90%); height: auto; overflow: visible; }
  #nbp .vial-stage .hero-vial-image { width: 100%; height: 100%; object-fit: contain; }

  /* mono stat strip under hero */
  #nbp .stats {
    margin-top: clamp(40px, 6vw, 64px);
    display: grid; grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--line); background: var(--panel);
  }
  #nbp .stats .stat { padding: 22px 24px; border-right: 1px solid var(--line); }
  #nbp .stats .stat:nth-child(3n), #nbp .stats .stat:last-child { border-right: 0; }
  #nbp .stats .stat .k { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 800; color: var(--paper); letter-spacing: -.02em; }
  #nbp .stats .stat .k span { color: var(--gold); }
  #nbp .stats .stat .v { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mute); margin-top: 6px; }

  /* -------- 6. WHY / FEATURE CARDS -------- */
  #nbp .cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
  #nbp .card {
    background: var(--panel); border: 1px solid var(--line);
    padding: 28px 26px 30px; transition: border-color .2s ease, transform .2s ease;
  }
  #nbp .card:hover { border-color: var(--line-2); transform: translateY(-3px); }
  #nbp .card .ref { font-family: var(--mono); font-size: .7rem; letter-spacing: .14em; color: var(--gold-bright); }
  #nbp .card .ic { width: 30px; height: 30px; color: var(--gold); margin: 16px 0 18px; }
  #nbp .card h3 { font-size: 1.18rem; font-weight: 700; letter-spacing: -.01em; }
  #nbp .card p { color: var(--mute); margin-top: 10px; font-size: .96rem; }

  /* -------- 7. PROCESS (hairline spine) -------- */
  #nbp .steps { margin-top: 44px; border-top: 1px solid var(--line); }
  #nbp .step {
    display: grid; grid-template-columns: 96px 1fr; gap: clamp(16px, 4vw, 48px);
    padding: 30px 0; border-bottom: 1px solid var(--line); align-items: start;
  }
  #nbp .step .no { font-family: var(--mono); font-size: 1.2rem; color: var(--gold); letter-spacing: .04em; }
  #nbp .step h3 { font-size: 1.25rem; font-weight: 700; }
  #nbp .step p { color: var(--mute); margin-top: 8px; max-width: 62ch; }

  /* -------- 8. CATALOG / PRODUCT CARDS -------- */
  #nbp .catalog { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
  #nbp .prod {
    background: var(--panel); border: 1px solid var(--line);
    display: flex; flex-direction: column; transition: border-color .2s ease, transform .2s ease;
  }
  #nbp .prod:hover { border-color: var(--gold); transform: translateY(-3px); }
  #nbp .prod .thumb {
    aspect-ratio: 16 / 10; display: grid; place-items: center;
    border-bottom: 1px solid var(--line);
    background:
      radial-gradient(120% 120% at 50% 20%, rgba(202,162,78,.12), transparent 60%),
      repeating-linear-gradient(45deg, transparent 0 11px, rgba(255,255,255,.015) 11px 12px);
  }
  #nbp .prod .thumb svg { width: 64px; height: 64px; color: var(--gold); }
  #nbp .prod .thumb img { width: 100%; height: 100%; object-fit: contain; }
  #nbp .prod .body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
  #nbp .prod .body .tag { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
  #nbp .prod .body h3 { font-size: 1.12rem; font-weight: 700; }
  #nbp .prod .body .subtitle { color: var(--mute); font-size: .9rem; line-height: 1.35; }
  #nbp .prod .spec {
    font-family: var(--mono); font-size: .74rem; color: var(--mute);
    margin-top: 10px; display: grid; gap: 6px;
  }
  #nbp .prod .spec > span { display: grid; grid-template-columns: 90px minmax(0, 1fr); align-items: baseline; }
  #nbp .prod .spec-value { min-width: 0; overflow-wrap: anywhere; }
  #nbp .prod .spec b { color: var(--gold); font-weight: 600; }
  #nbp .prod .foot {
    margin-top: auto; padding-top: 16px; display: flex;
    align-items: center; justify-content: space-between;
  }
  #nbp .prod .foot .price { font-weight: 800; font-size: 1.05rem; }
  #nbp .prod .foot .coa { font-family: var(--mono); font-size: .72rem; color: var(--gold); border-bottom: 1px dashed var(--line-2); }
  #nbp .catalog-empty { margin-top: 38px; border: 1px solid var(--line); background: var(--panel); padding: 24px; color: var(--mute); }
  #nbp .catalog-empty .woocommerce-info { margin: 0; color: inherit; }

  /* -------- 9. FAQ (native details/summary) -------- */
  #nbp .faq { margin-top: 40px; border-top: 1px solid var(--line); }
  #nbp .faq details { border-bottom: 1px solid var(--line); }
  #nbp .faq summary {
    list-style: none; cursor: pointer; padding: 22px 0;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    font-weight: 600; font-size: 1.08rem;
  }
  #nbp .faq summary::-webkit-details-marker { display: none; }
  #nbp .faq summary .plus { position: relative; width: 16px; height: 16px; flex: 0 0 auto; }
  #nbp .faq summary .plus::before,
  #nbp .faq summary .plus::after { content: ""; position: absolute; background: var(--gold); transition: transform .2s ease; }
  #nbp .faq summary .plus::before { top: 7px; left: 0; width: 16px; height: 2px; }
  #nbp .faq summary .plus::after  { left: 7px; top: 0; width: 2px; height: 16px; }
  #nbp .faq details[open] summary .plus::after { transform: scaleY(0); }
  #nbp .faq details p { color: var(--mute); padding: 0 40px 24px 0; max-width: 72ch; }

  /* -------- 10. RESEARCH-USE WARNING BAND -------- */
  #nbp .warn {
    border: 1px solid var(--gold);
    box-shadow: inset 0 0 0 1px rgba(202,162,78,.18); /* embossed double-rule */
    background: linear-gradient(180deg, rgba(202,162,78,.06), transparent);
    padding: clamp(28px, 5vw, 44px);
    display: grid; grid-template-columns: 44px 1fr; gap: 22px; align-items: start;
  }
  #nbp .warn svg { width: 40px; height: 40px; color: var(--gold); }
  #nbp .warn h3 { font-size: 1.2rem; font-weight: 800; letter-spacing: .01em; }
  #nbp .warn p { color: var(--mute); margin-top: 10px; max-width: 78ch; font-size: .96rem; }
  #nbp .warn .stamp { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; color: var(--gold); text-transform: uppercase; }

  /* -------- 12. ANIMATION (respecting reduced motion) -------- */
  @keyframes nbp-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
  @keyframes nbp-draw { to { stroke-dashoffset: 0; } }
  @keyframes nbp-fill { from { transform: scaleY(0); } to { transform: scaleY(1); } }
  #nbp .rise { animation: nbp-rise .7s cubic-bezier(.2,.7,.2,1) both; }
  #nbp .rise.d1 { animation-delay: .08s; }
  #nbp .rise.d2 { animation-delay: .16s; }
  #nbp .rise.d3 { animation-delay: .24s; }
  #nbp .draw { stroke-dasharray: 1; stroke-dashoffset: 1; pathLength: 1; animation: nbp-draw 1.6s ease forwards .3s; }
  #nbp .vial-fill { transform-box: fill-box; transform-origin: bottom; animation: nbp-fill 1.1s cubic-bezier(.4,0,.2,1) forwards .8s; }

  @media (prefers-reduced-motion: reduce) {
    #nbp .rise, #nbp .draw, #nbp .vial-fill { animation: none; }
    #nbp .draw { stroke-dashoffset: 0; }
    #nbp .vial-fill { transform: none; }
  }

  /* -------- 13. RESPONSIVE -------- */
  @media (max-width: 900px) {
    #nbp .hero-grid { grid-template-columns: 1fr; }
    #nbp .vial-stage { order: -1; max-width: 320px; margin-inline: auto; }
    #nbp .cards, #nbp .catalog { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 620px) {
    #nbp .stats { grid-template-columns: 1fr; }
    #nbp .stats .stat { border-right: 0; border-bottom: 1px solid var(--line); }
    #nbp .stats .stat:last-child { border-bottom: 0; }
    #nbp .cards, #nbp .catalog { grid-template-columns: 1fr; }
    #nbp .step { grid-template-columns: 1fr; gap: 6px; }
    #nbp .warn { grid-template-columns: 1fr; }
  }