:root { --frost: #ffffff; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
    .content-left .heading4 { text-transform: none; font-weight: 500; line-height: 1.1; }
    @media (prefers-reduced-motion: reduce) { dotlottie-player { display: none; } }

    /* Placeholder */
    .img-placeholder { width: 100%; height: 100%; background: #e8e8e8; display: flex; align-items: center; justify-content: center; }
    .img-placeholder span { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.7em; font-weight: 400; letter-spacing: 0.02em; text-transform: uppercase; color: #b0b0b0; }

    /* ── Flow Card ── */
    .flow-card { padding: 6em 8%; min-height: 100vh; min-height: 100dvh; display: flex; align-items: center; }
    .flow-inner { display: flex; gap: 10em; max-width: 72em; margin: 0 auto; width: 100%; align-items: flex-start; }
    .flow-left { width: 23%; flex-shrink: 0; position: sticky; top: 6em; align-self: flex-start; }
    .flow-num { font-family: 'Helvetica Now Display', sans-serif; font-size: 4em; font-weight: 800; color: var(--charcoal); opacity: 0.08; line-height: 1; margin-bottom: 0.3em; }
    .flow-title { font-family: 'Helvetica Now Display', sans-serif; font-size: 1.4em; font-weight: 800; line-height: 0.95; letter-spacing: -0.03em; text-transform: uppercase; color: var(--charcoal); margin-bottom: 0.6em; }
    .flow-status { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.7em; font-weight: 400; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-muted); }
    .flow-right { flex: 1; min-width: 0; overflow: hidden; padding-top: 5.2em; }
    .flow-problem__label { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.7em; font-weight: 400; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-muted); margin-bottom: 0.8em; line-height: 1; }
    .flow-problem__body { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.8em; font-weight: 400; line-height: 1.45; color: var(--charcoal); opacity: 0.85; }
    .flow-decision { max-width: 36em; margin-top: 2.5em; }
    .flow-decision__label { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.7em; font-weight: 400; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-muted); margin-bottom: 0.8em; }
    .flow-decision__body { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.8em; font-weight: 400; line-height: 1.45; color: var(--charcoal); opacity: 0.85; }
    .phone-strip { display: flex; flex-wrap: wrap; gap: 3.5em 2em; padding: 1em 0 2em 0; }
    .phone-item { flex: 0 0 calc((100% - 6em) / 4); min-width: 140px; }
    .phone-item__frame img { width: 100%; height: auto; border: 1px solid rgba(52,52,52,0.08); border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.04), 0 12px 40px rgba(0,0,0,0.03); }
    .phone-item__meta { display: flex; align-items: baseline; gap: 0.4em; margin-top: 1.2em; }
    .phone-item__step { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.5em; font-weight: 400; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-ghost); flex-shrink: 0; }
    .phone-item__caption { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.5em; font-weight: 400; line-height: 1.35; color: var(--text-ghost); }
    .flow-strip-label { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.7em; font-weight: 400; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-muted); margin: 2em 0 0.5em; }
    .app-pill { display: inline-block; font-family: 'Helvetica Now Display', sans-serif; font-size: 0.65em; font-weight: 500; padding: 0.25em 0.7em; border-radius: 100px; border: 1px solid rgba(52,52,52,0.1); color: var(--text-muted); margin: 0.15em 0.1em; }

    /* ── Versus Table ── */
    .vs-table { width: 100%; border-collapse: collapse; margin: 2em 0; }
    .vs-table th { text-align: left; font-size: 0.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-ghost); padding: 1em 1.2em; border-bottom: 1px solid rgba(52,52,52,0.08); }
    .vs-table th:last-child { color: #FF5E39; }
    .vs-table td { padding: 1em 1.2em; font-size: 0.8em; color: var(--text-secondary); line-height: 1.45; border-bottom: 1px solid rgba(52,52,52,0.04); vertical-align: top; }
    .vs-table td:first-child { font-weight: 500; color: var(--charcoal); width: 22%; }
    .vs-table td:last-child { color: var(--charcoal); font-weight: 500; }
    .vs-table tr:last-child td { border-bottom: none; }

    /* ── Model Grid (from Swadesh) ── */
    .model-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2em; margin: 3em 0; }
    .model-col { padding: 2em; border-radius: 4px; }
    .model-col.v1 { background: rgba(0,0,0,0.025); border: 1px solid rgba(52,52,52,0.06); }
    .model-col.later { background: rgba(52,52,52,0.02); border: 1px solid rgba(52,52,52,0.04); }
    .model-col h3 { font-size: 0.7em; font-weight: 500; text-transform: uppercase; letter-spacing: 0.02em; margin-bottom: 0.8em; color: var(--charcoal); }
    .model-col.later h3 { color: var(--text-muted); }
    .model-tag { display: inline-block; font-size: 0.75em; padding: 3px 10px; border-radius: 4px; margin: 3px 4px 3px 0; color: var(--text-secondary); border: 1px solid rgba(52,52,52,0.08); }
    .model-col.later .model-tag { color: var(--text-ghost); border-color: rgba(52,52,52,0.05); }

    /* ── Evidence Stats ── */
    .evidence-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
      border-top: 1px solid rgba(52,52,52,0.06);
      border-bottom: 1px solid rgba(52,52,52,0.06);
      margin: 2em 0;
    }
    .evidence-stat {
      padding: 2em 2em;
      text-align: center;
      border-right: 1px solid rgba(52,52,52,0.06);
    }
    .evidence-stat:last-child { border-right: none; }
    .evidence-stat__number {
      font-family: 'Helvetica Now Display', sans-serif;
      font-size: clamp(2.4rem, 5vw, 3.6rem);
      font-weight: 800;
      letter-spacing: -0.04em;
      color: var(--charcoal);
      line-height: 1;
      margin-bottom: 0.3em;
    }
    .evidence-stat__label {
      font-family: 'Helvetica Now Display', sans-serif;
      font-size: 0.75em;
      font-weight: 400;
      color: var(--text-secondary);
      line-height: 1.4;
      margin-bottom: 0.8em;
    }
    .evidence-stat__sub {
      font-family: 'Helvetica Now Display', sans-serif;
      font-size: 0.6em;
      font-weight: 400;
      color: var(--text-ghost);
      line-height: 1.4;
    }
    .evidence-stat__source {
      font-family: 'Helvetica Now Display', sans-serif;
      font-size: 0.55em;
      font-weight: 400;
      color: var(--text-ghost);
      margin-top: 0.6em;
    }
    .evidence-stat__source a {
      color: var(--text-ghost);
      text-decoration: underline;
      text-underline-offset: 2px;
    }
    .inference-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2em;
      margin: 3em 0;
    }
    .inference-step {
      padding: 0;
    }
    .inference-step__label {
      font-family: 'Helvetica Now Display', sans-serif;
      font-size: 0.6em;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.04em;
      color: var(--text-ghost);
      margin-bottom: 0.6em;
    }
    .inference-step__body {
      font-family: 'Helvetica Now Display', sans-serif;
      font-size: 0.85em;
      font-weight: 500;
      line-height: 1.3;
      color: var(--charcoal);
    }
    @media (max-width: 768px) {
      .evidence-row { grid-template-columns: 1fr; }
      .evidence-stat { border-right: none; border-bottom: 1px solid rgba(52,52,52,0.06); }
      .evidence-stat:last-child { border-bottom: none; }
      .inference-row { grid-template-columns: 1fr; }
    }

    /* ── Statblock Grid (from PixelBin) ── */
    .statblock-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2em; }
    .statblock-cell { padding: 2em; border: 1px solid rgba(52,52,52,0.08); }
    .statblock-badge { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.6em; font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-ghost); border: 1px solid rgba(52,52,52,0.12); display: inline-block; padding: 0.15em 0.5em; margin-bottom: 1.2em; line-height: 1.4; }
    .statblock-keyword { font-family: 'Helvetica Now Display', sans-serif; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; line-height: 1; letter-spacing: -0.04em; text-transform: uppercase; color: var(--charcoal); margin-bottom: 0.4em; }
    .statblock-body { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.8em; font-weight: 400; line-height: 1.5; color: var(--text-secondary); }

    /* ── Numbered List (from Swadesh) ── */
    .numbered-list { list-style: none; margin-top: 1.5em; }
    .numbered-list li { display: flex; gap: 1em; padding: 1.2em 0; border-bottom: 1px solid rgba(52,52,52,0.06); align-items: baseline; }
    .numbered-list li:first-child { border-top: 1px solid rgba(52,52,52,0.06); }
    .numbered-list .num { font-size: 0.7em; font-weight: 400; letter-spacing: 0.02em; color: var(--text-ghost); flex-shrink: 0; width: 24px; }
    .numbered-list .text { font-size: 0.875em; color: var(--text-secondary); line-height: 1.55; }
    .numbered-list .text strong { color: var(--charcoal); font-weight: 500; }

    /* ── Reflection Grid (from Swadesh) ── */
    .reflection-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 2em; margin: 3em 0; }
    .reflection-card h3 { font-size: 0.8em; font-weight: 500; margin-bottom: 0.5em; }
    .reflection-card h3.worked { color: #1a7a3c; }
    .reflection-card h3.different { color: #996600; }
    .reflection-card h3.open { color: var(--text-muted); }
    .reflection-card p { font-size: 0.8em; color: var(--text-muted); line-height: 1.55; }

    /* ── CTA + Footer ── */
    #cta, #site-footer { font-size: 16px; }
    #cta { background: #000; text-align: center; min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 120px 48px 100px; position: relative; box-sizing: border-box; }
    .cta-heading { font-family: 'Helvetica Now Display', sans-serif; font-size: clamp(28px, 5vw, 44px); font-weight: 500; letter-spacing: -0.03em; line-height: 1; color: #fff; margin-bottom: 48px; }
    .cta-heading .h-reg { font-style: normal; }
    .cta-heading .h-ital { font-style: italic; font-weight: 400; }
    .cta-content { max-width: 420px; margin: 0 auto; }
    .cta-label { font-family: 'Helvetica Now Display', sans-serif; font-size: 12px; font-weight: 400; letter-spacing: 0.03em; color: rgba(255,255,255,0.65); margin-bottom: 32px; }
    .cta-description { font-family: 'Helvetica Now Display', sans-serif; font-size: 13px; font-weight: 400; line-height: 1.65; letter-spacing: -0.01em; color: rgba(255,255,255,0.7); margin-bottom: 40px; }
    .footer-cta-btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: 'Helvetica Now Display', sans-serif; font-size: 18px; font-weight: 500; color: #000; background: #fff; border: none; border-radius: 100px; padding: 18px 48px; cursor: pointer; text-decoration: none; transition: background 0.2s ease, transform 0.15s ease; }
    .footer-cta-btn:hover { background: rgba(255,255,255,0.88); transform: scale(1.02); }
    .btn-mail-icon { display: flex; }
    #site-footer { background: #000; width: 100%; display: flex; flex-direction: column; position: relative; padding: 60px 48px; box-sizing: border-box; }
    .footer-bottom { width: 100%; display: flex; align-items: flex-end; justify-content: space-between; }
    .footer-left { display: flex; flex-direction: column; gap: 6px; }
    .footer-left span { font-family: 'Helvetica Now Display', sans-serif; font-size: 14px; font-weight: 400; color: rgba(255,255,255,0.6); }
    .footer-right { display: flex; gap: 24px; }
    .footer-right a { font-family: 'Helvetica Now Display', sans-serif; font-size: 12px; font-weight: 400; color: rgba(255,255,255,0.65); text-decoration: none; transition: color 0.2s ease; }
    .footer-right a:hover { color: rgba(255,255,255,0.9); }

    /* ── Responsive ── */
    @media (max-width: 768px) {
      .s04-row { flex-direction: column !important; }
      .s04-row > div { width: 100% !important; }
      .flow-card { padding: 4em 6%; min-height: auto; }
      .flow-inner { flex-direction: column; gap: 2em; }
      .flow-left { width: 100%; position: static; }
      .flow-num { font-size: 3em; margin-bottom: 0.2em; }
      .flow-title { font-size: 1.2em; }
      .flow-right { padding-top: 0; }
      .phone-strip { gap: 1em 1em; }
      .phone-item { flex: 0 0 calc((100% - 1em) / 2); }
      .model-grid { grid-template-columns: 1fr; }
      .statblock-grid { grid-template-columns: 1fr; }
      .reflection-grid { grid-template-columns: 1fr; }
      .vs-table th, .vs-table td { padding: 0.8em 0.6em; font-size: 0.7em; }
      .cs-hero-meta .mono-text { font-size: 0.6em; }
      #cta { padding: 80px 24px 100px; }
      #site-footer { padding: 60px 24px 40px; }
      .footer-bottom { flex-direction: column; gap: 24px; align-items: flex-start; }
      .footer-cta-btn { font-size: 16px; padding: 16px 40px; }
    }
    @media (max-width: 480px) {
      .flow-card { padding: 3em 5%; }
      .phone-strip { gap: 0.8em; }
      .phone-item { flex: 0 0 calc((100% - 0.8em) / 2); }
      .flow-num { font-size: 2.4em; }
      .flow-title { font-size: 1em; }
    }

    /* ── Lightbox ── */
    .lb { display: none; position: fixed; inset: 0; z-index: 1000; background: rgba(255,255,255,0.45); backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4); }
    .lb.active { display: flex; align-items: center; justify-content: center; flex-direction: column; }
    .lb__top { position: absolute; top: 0; left: 0; right: 0; padding: 1.5em 2em; display: flex; align-items: center; justify-content: space-between; }
    .lb__flow { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.7em; font-weight: 500; color: var(--text-ghost); }
    .lb__flow strong { color: var(--charcoal); font-weight: 500; }
    .lb__close { background: none; border: none; color: var(--text-ghost); font-size: 1.5em; cursor: pointer; padding: 0.3em; transition: color 0.2s; }
    .lb__close:hover { color: var(--charcoal); }
    .lb__img-wrap { max-height: 75vh; max-width: 90vw; display: flex; align-items: center; justify-content: center; }
    .lb__img-wrap img { max-height: 75vh; max-width: 40vw; width: auto; height: auto; border-radius: 12px; box-shadow: 0 4px 24px rgba(0,0,0,0.08), 0 12px 60px rgba(0,0,0,0.12); }
    .lb__caption { font-family: 'Helvetica Now Display', sans-serif; font-size: 0.75em; font-weight: 400; color: var(--text-muted); margin-top: 1.5em; text-align: center; }
    .lb__nav { position: absolute; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--text-ghost); font-size: 2em; cursor: pointer; padding: 0.5em; transition: color 0.2s; }
    .lb__nav:hover { color: var(--charcoal); }
    .lb__nav--prev { left: 1.5em; }
    .lb__nav--next { right: 1.5em; }
    .phone-item { cursor: pointer; }
    .phone-item:hover img { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
    .phone-item img { transition: transform 0.2s ease, box-shadow 0.2s ease; }

    /* ── Bottom Nav ── */
    .cs-bottom-nav { position: fixed; bottom: 1.8em; left: 50%; transform: translateX(-50%); z-index: 500; display: flex; align-items: center; gap: 0.3em; padding: 0.4em; background: rgba(52,52,52,0.65); border: 1px solid rgba(255,255,255,0.08); border-radius: 100px; box-shadow: 0 8px 32px rgba(0,0,0,0.22); backdrop-filter: blur(24px) saturate(1.6); -webkit-backdrop-filter: blur(24px) saturate(1.6); white-space: nowrap; opacity: 0; transform: translateX(-50%) translateY(1.5em); transition: opacity 0.35s ease, transform 0.35s ease; pointer-events: none; }
    .cs-bottom-nav.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
    .cs-nav-pill { position: absolute; top: 0.4em; left: 0; height: calc(100% - 0.8em); border-radius: 100px; background: #fff; box-shadow: 0 1px 6px rgba(0,0,0,0.06); transition: left 0.3s cubic-bezier(0.16,1,0.3,1), width 0.3s cubic-bezier(0.16,1,0.3,1); pointer-events: none; z-index: 0; }
    .cs-nav-item { display: flex; align-items: center; gap: 0.4em; padding: 0.55em 1.1em; border-radius: 100px; font-family: 'Helvetica Now Display', sans-serif; font-size: 0.75rem; font-weight: 500; letter-spacing: -0.01em; color: rgba(255,255,255,0.85); text-decoration: none; cursor: pointer; transition: color 0.35s ease; user-select: none; position: relative; z-index: 1; }
    .cs-nav-item:hover { color: rgba(255,255,255,0.95); }
    .cs-nav-item.is-active { color: var(--charcoal); }
    .cs-nav-item svg { width: 13px; height: 13px; flex-shrink: 0; opacity: 0.7; transition: opacity 0.35s ease; }
    .cs-nav-item.is-active svg { opacity: 0.9; }
    .cs-nav-sep { width: 3px; height: 3px; border-radius: 50%; background: rgba(255,255,255,0.18); flex-shrink: 0; position: relative; z-index: 1; }
    @media (max-width: 768px) { .cs-bottom-nav { bottom: 1.2em; gap: 0.15em; padding: 0.3em; } .cs-nav-item { font-size: 0.75rem; padding: 0.7em 0.9em; gap: 0.35em; min-height: 44px; } .cs-nav-pill { top: 0.3em; height: calc(100% - 0.6em); } }
    @media (max-width: 640px) { .cs-nav-item span { display: none; } .cs-nav-item { padding: 0.55em 0.7em; } .cs-nav-item svg { width: 15px; height: 15px; opacity: 0.6; } .cs-nav-item.is-active svg { opacity: 1; } .cs-nav-sep { display: none; } }