.pbmod{--pbmod-bg:#0b0d10;--pbmod-bg-raise:#10141a;--pbmod-line:#ffffff14;--pbmod-line-strong:#ffffff29;--pbmod-ink:#e8ecef;--pbmod-ink-dim:#97a1ab;--pbmod-ink-faint:#828b96;--pbmod-accent:#1d9e75;--pbmod-accent-dim:#1d9e7524;--pbmod-accent-line:#15654c;--pbmod-sans:var(--font-pbms-sans), "Instrument Sans", system-ui, sans-serif;--pbmod-mono:var(--font-mono), "JetBrains Mono", ui-monospace, monospace;background:var(--pbmod-bg);color:var(--pbmod-ink);font-family:var(--pbmod-sans);-webkit-font-smoothing:antialiased;min-height:100vh}.pbmod *,.pbmod :before,.pbmod :after{box-sizing:border-box;margin:0}.pbmod ::selection{background:#1d9e7559}.pbmod-hero{align-items:flex-end;min-height:100vh;padding:88px 24px 12vh;display:flex;position:relative;overflow:hidden}.pbmod-hero-inner{z-index:2;width:100%;max-width:1140px;margin:0 auto;padding:0 clamp(20px,4vw,48px);position:relative}.pbmod-hero-kicker{font-family:var(--pbmod-mono);letter-spacing:.22em;color:var(--pbmod-accent);text-transform:uppercase;align-items:center;gap:10px;margin-bottom:18px;font-size:11px;font-weight:500;display:flex}.pbmod-hero-kicker:before{content:"";background:var(--pbmod-accent-line);width:22px;height:1px}.pbmod-hero h1{letter-spacing:-.02em;max-width:640px;font-size:clamp(34px,5.2vw,62px);font-weight:600;line-height:1.05}.pbmod-hero h1 em{color:var(--pbmod-accent);font-style:normal;font-weight:600}.pbmod-hero-sub{max-width:460px;color:var(--pbmod-ink-dim);margin-top:20px;font-size:16.5px;line-height:1.6}.pbmod-hero-plate{font-family:var(--pbmod-mono);color:var(--pbmod-ink-faint);letter-spacing:.03em;flex-wrap:wrap;gap:26px;margin-top:26px;font-size:12px;display:flex}.pbmod-hero-plate b{color:var(--pbmod-ink);font-weight:500}.pbmod-hero-scrollcue{font-family:var(--pbmod-mono);letter-spacing:.2em;color:var(--pbmod-ink-faint);text-transform:uppercase;align-items:center;gap:14px;margin-top:52px;font-size:10px;display:flex}.pbmod-hero-scrollcue i{background:linear-gradient(var(--pbmod-ink-faint), transparent);width:1px;height:44px;animation:2.6s ease-in-out infinite pbmod-cue;display:block}@keyframes pbmod-cue{0%,to{opacity:.5;transform:scaleY(.55)}50%{opacity:1;transform:scaleY(1)}}.pbmod-hero-grid{z-index:1;opacity:.4;background-image:linear-gradient(var(--pbmod-line) 1px, transparent 1px), linear-gradient(90deg, var(--pbmod-line) 1px, transparent 1px);background-size:72px 72px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(65% 55% at 28% 62%,#000 25%,#0000 70%);mask-image:radial-gradient(65% 55% at 28% 62%,#000 25%,#0000 70%)}.pbmod-showcase{grid-template-columns:minmax(360px,42%) 1fr;max-width:1600px;margin:0 auto;display:grid}.pbmod-chapters{padding:0 8px 0 clamp(24px,4vw,64px)}.pbmod-chapter{opacity:.92;flex-direction:column;justify-content:center;min-height:96vh;padding:12vh 36px 12vh 0;transition:opacity .5s,transform .5s;display:flex;transform:translateY(10px)}.pbmod-chapter.is-active{opacity:1;transform:none}.pbmod-chapter-code{align-items:baseline;gap:14px;margin-bottom:18px;display:flex}.pbmod-chapter-code .code{font-family:var(--pbmod-mono);color:#4ee0a8;letter-spacing:.18em;background:var(--pbmod-accent-dim);border:1px solid #1d9e7566;border-radius:3px;padding:4px 9px;font-size:12px}.pbmod-chapter-code .kicker{font-family:var(--pbmod-mono);color:var(--pbmod-ink-dim);letter-spacing:.1em;font-size:11px}.pbmod-chapter h2{letter-spacing:-.015em;margin-bottom:14px;font-size:clamp(24px,2.4vw,34px);font-weight:600}.pbmod-chapter .lead{margin-bottom:12px;font-size:17.5px;font-weight:500;line-height:1.5}.pbmod-chapter .body{color:var(--pbmod-ink-dim);max-width:52ch;font-size:15px;line-height:1.68}.pbmod-chips{background:var(--pbmod-line);border:1px solid var(--pbmod-line);border-radius:4px;gap:1px;max-width:420px;margin-top:26px;display:grid;overflow:hidden}.pbmod-chip{background:var(--pbmod-bg-raise);font-family:var(--pbmod-mono);justify-content:space-between;gap:18px;padding:11px 14px;font-size:12px;display:flex}.pbmod-chip .k{color:var(--pbmod-ink-dim)}.pbmod-chip .v{color:var(--pbmod-ink);text-align:right}.pbmod-chapter-link{font-family:var(--pbmod-mono);letter-spacing:.08em;color:var(--pbmod-accent);align-items:center;gap:8px;margin-top:22px;font-size:12px;text-decoration:none;display:inline-flex}.pbmod-chapter-link:hover{color:#4ee0a8}.pbmod-chapter-link:focus-visible{outline:2px solid var(--pbmod-accent);outline-offset:3px}.pbmod-sticky{flex-direction:column;height:calc(100vh - 56px);padding:clamp(12px,2.5vh,28px) clamp(16px,3vw,48px);display:flex;position:sticky;top:56px}.pbmod-instrument{border:1px solid var(--pbmod-line-strong);background:#e9e5dd;border-radius:6px;flex:1;position:relative;overflow:hidden;box-shadow:0 30px 80px #00000080}.pbmod-world{transform-origin:0 0;will-change:transform;width:2000px;height:1500px;transition:transform 1.25s cubic-bezier(.22,.8,.26,1);position:absolute;top:0;left:0}.pbmod-world canvas{width:100%;height:100%;transition:filter .8s;position:absolute;inset:0}.pbmod-world canvas.archival{filter:saturate(.65)sepia(.32)contrast(1.04)brightness(.97)}.pbmod-world svg{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.pbmod-world .ov{opacity:0;pointer-events:none;transition:opacity .5s .35s}.pbmod-world .ov.on{opacity:1}.pbmod-search{z-index:8;border:1px solid var(--pbmod-line-strong);font-family:var(--pbmod-mono);color:var(--pbmod-ink);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0e1115eb;border-radius:4px;align-items:center;gap:9px;padding:8px 13px;font-size:11px;display:flex;position:absolute;top:12px;left:12px}.pbmod-search .dot{background:var(--pbmod-accent);border-radius:50%;width:7px;height:7px}.pbmod-search .muted{color:var(--pbmod-ink-faint)}.pbmod-layerchip{z-index:8;font-family:var(--pbmod-mono);letter-spacing:.14em;color:var(--pbmod-ink-dim);border:1px solid var(--pbmod-line-strong);text-transform:uppercase;background:#0e1115eb;border-radius:4px;padding:8px 11px;font-size:10px;position:absolute;top:12px;right:12px}.pbmod-layerchip .on{color:var(--pbmod-accent)}.pbmod-zoomctl{z-index:8;border:1px solid var(--pbmod-line-strong);background:#0e1115eb;border-radius:4px;flex-direction:column;display:flex;position:absolute;bottom:44px;right:12px;overflow:hidden}.pbmod-zoomctl button{width:32px;height:32px;color:var(--pbmod-ink);cursor:pointer;font-size:16px;font-family:var(--pbmod-mono);background:0 0;border:0}.pbmod-zoomctl button:hover{background:#ffffff12}.pbmod-zoomctl button:first-child{border-bottom:1px solid var(--pbmod-line)}.pbmod-zoomctl button:focus-visible{outline:2px solid var(--pbmod-accent);outline-offset:-2px}.pbmod-scalebar{z-index:8;font-family:var(--pbmod-mono);color:#3c4640;text-shadow:0 1px 2px #ffffffd9;font-size:9.5px;position:absolute;bottom:12px;left:12px}.pbmod-scalebar .bar{border:1px solid #3c4640;border-top:0;height:4px;margin-top:2px}.pbmod-attrib{z-index:8;font-family:var(--pbmod-mono);color:#404a44d9;text-shadow:0 1px 2px #ffffffd9;letter-spacing:.06em;font-size:9px;position:absolute;bottom:12px;right:12px}.pbmod-frame-idx{z-index:8;font-family:var(--pbmod-mono);color:#4a544e;text-shadow:0 1px 2px #ffffffd9;letter-spacing:.12em;font-size:10px;position:absolute;bottom:40px;left:12px}.pbmod-rail{flex-wrap:wrap;gap:6px;padding-top:14px;display:flex}.pbmod-rail button{font-family:var(--pbmod-mono);letter-spacing:.1em;color:var(--pbmod-ink-faint);border:1px solid var(--pbmod-line);cursor:pointer;background:0 0;border-radius:3px;min-width:24px;min-height:24px;padding:6px 9px;font-size:10.5px;transition:color .25s,border-color .25s,background .25s}.pbmod-rail button:hover{color:var(--pbmod-ink);border-color:var(--pbmod-line-strong)}.pbmod-rail button.is-active{color:var(--pbmod-accent);background:var(--pbmod-accent-dim);border-color:#1d9e758c}.pbmod-rail button:focus-visible{outline:2px solid var(--pbmod-accent);outline-offset:1px}.pbmod-outro{text-align:center;max-width:880px;margin:0 auto;padding:18vh 24px 16vh}.pbmod-outro h2{letter-spacing:-.02em;font-size:clamp(28px,3.6vw,46px);font-weight:600}.pbmod-outro p{color:var(--pbmod-ink-dim);max-width:54ch;margin:20px auto 0;line-height:1.65}.pbmod-outro-actions{flex-wrap:wrap;justify-content:center;gap:14px;margin-top:38px;display:flex}.pbmod-btn{font-family:var(--pbmod-mono);letter-spacing:.04em;border-radius:3px;padding:13px 24px;font-size:13px;text-decoration:none;transition:transform .15s,background .2s,border-color .2s;display:inline-block}.pbmod-btn.primary{background:var(--pbmod-accent);color:#06110c;font-weight:600}.pbmod-btn.primary:hover{background:#23b586;transform:translateY(-1px)}.pbmod-btn.ghost{border:1px solid var(--pbmod-line-strong);color:var(--pbmod-ink)}.pbmod-btn.ghost:hover{border-color:var(--pbmod-accent);color:var(--pbmod-accent)}@media (max-width:980px){.pbmod-showcase{flex-direction:column;display:flex}.pbmod-sticky{z-index:5;background:var(--pbmod-bg);order:-1;height:52vh;padding:10px 14px 6px;position:sticky;top:56px}.pbmod-rail{display:none}.pbmod-chapters{padding:0 20px}.pbmod-chapter{min-height:auto;padding:9vh 0}.pbmod-attrib{display:none}}@media (prefers-reduced-motion:reduce){.pbmod-world,.pbmod-world .ov,.pbmod-chapter,.pbmod-hero-scrollcue i,.pbmod-world canvas{transition:none!important;animation:none!important}.pbmod-chapter{opacity:1;transform:none}}
