:root{--pb-brand: #0a4d68;--pb-accent: #05bfdb;--pb-warning: #b91c1c;--pb-success: #15803d;--pb-caution: #b45309;--pb-bg: #ffffff;--pb-bg-soft: #f6f8fa;--pb-bg-card: #ffffff;--pb-border: #e2e8f0;--pb-border-strong: #cbd5e1;--pb-text: #0f172a;--pb-text-muted: #475569;--pb-text-soft: #64748b;--pb-text-inverse: #ffffff;--pb-font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--pb-font-serif: "Iowan Old Style", "Source Serif Pro", Georgia, serif;--pb-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--pb-s-1: 4px;--pb-s-2: 8px;--pb-s-3: 12px;--pb-s-4: 16px;--pb-s-5: 24px;--pb-s-6: 32px;--pb-s-7: 48px;--pb-s-8: 64px;--pb-s-9: 96px;--pb-radius-sm: 4px;--pb-radius: 8px;--pb-radius-lg: 12px;--pb-container: 1120px;--pb-container-narrow: 760px;--pb-shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);--pb-shadow: 0 4px 12px rgba(15, 23, 42, .08);color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--pb-bg: #0b1220;--pb-bg-soft: #111a2e;--pb-bg-card: #142036;--pb-border: #1f2a44;--pb-border-strong: #2a3858;--pb-text: #f1f5f9;--pb-text-muted: #cbd5e1;--pb-text-soft: #94a3b8;--pb-brand: #38bdf8;--pb-accent: #22d3ee}}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--pb-bg);color:var(--pb-text);font-family:var(--pb-font-sans);font-size:17px;line-height:1.65;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,svg,picture,video{max-width:100%;height:auto;display:block}button{font:inherit}a{color:var(--pb-brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px}a:hover{text-decoration-thickness:2px}hr{border:0;height:1px;background:var(--pb-border);margin:var(--pb-s-6) 0}.pb-container{width:100%;max-width:var(--pb-container);margin:0 auto;padding:0 var(--pb-s-4)}.pb-container-narrow{width:100%;max-width:var(--pb-container-narrow);margin:0 auto;padding:0 var(--pb-s-4)}.pb-section{padding:var(--pb-s-7) 0}@media (min-width: 768px){.pb-section{padding:var(--pb-s-8) 0}}.pb-header{border-bottom:1px solid var(--pb-border);background:var(--pb-bg);position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(8px)}.pb-header__inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:var(--pb-s-4)}.pb-logo{font-family:var(--pb-font-sans);font-weight:800;font-size:1.15rem;letter-spacing:-.01em;color:var(--pb-text);text-decoration:none;display:flex;align-items:center;gap:6px}.pb-logo__dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--pb-accent)}.pb-nav{display:none;gap:var(--pb-s-5)}.pb-nav a{color:var(--pb-text-muted);text-decoration:none;font-weight:500;font-size:.95rem}.pb-nav a:hover,.pb-nav a[aria-current=page]{color:var(--pb-text)}.pb-nav__cta{background:var(--pb-brand);color:var(--pb-text-inverse)!important;padding:8px 14px;border-radius:var(--pb-radius);font-weight:600!important}@media (min-width: 900px){.pb-nav{display:flex;align-items:center}}.pb-nav-mobile{display:block;background:none;border:1px solid var(--pb-border);border-radius:var(--pb-radius);padding:6px 10px;color:var(--pb-text);cursor:pointer}@media (min-width: 900px){.pb-nav-mobile{display:none}}.pb-hero{padding:var(--pb-s-8) 0 var(--pb-s-7);background:linear-gradient(180deg,var(--pb-bg-soft) 0%,var(--pb-bg) 100%);border-bottom:1px solid var(--pb-border)}.pb-hero h1{font-size:clamp(2rem,4.5vw,3.4rem);line-height:1.1;letter-spacing:-.02em;margin:0 0 var(--pb-s-4);font-weight:800}.pb-hero p.lede{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--pb-text-muted);max-width:680px;margin:0 0 var(--pb-s-5)}.pb-hero__actions{display:flex;flex-wrap:wrap;gap:var(--pb-s-3)}.pb-btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:var(--pb-radius);font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .05s ease,background .15s ease}.pb-btn:active{transform:translateY(1px)}.pb-btn--primary{background:var(--pb-brand);color:var(--pb-text-inverse)}.pb-btn--primary:hover{background:#083d54;color:var(--pb-text-inverse)}.pb-btn--ghost{background:transparent;color:var(--pb-text);border-color:var(--pb-border-strong)}.pb-btn--ghost:hover{background:var(--pb-bg-soft)}.pb-grid{display:grid;gap:var(--pb-s-5)}.pb-grid--2,.pb-grid--3,.pb-grid--4{grid-template-columns:1fr}@media (min-width: 640px){.pb-grid--2,.pb-grid--3,.pb-grid--4{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1024px){.pb-grid--3{grid-template-columns:repeat(3,1fr)}.pb-grid--4{grid-template-columns:repeat(4,1fr)}}.pb-card{background:var(--pb-bg-card);border:1px solid var(--pb-border);border-radius:var(--pb-radius-lg);padding:var(--pb-s-5);transition:border-color .15s ease,transform .15s ease}.pb-card:hover{border-color:var(--pb-border-strong);transform:translateY(-2px)}.pb-card h3{margin:0 0 var(--pb-s-2);font-size:1.1rem}.pb-card p{margin:0;color:var(--pb-text-muted);font-size:.95rem}.pb-card a.cta{display:inline-block;margin-top:var(--pb-s-3);font-weight:600}.pb-article{max-width:var(--pb-container-narrow);margin:0 auto;padding:var(--pb-s-7) var(--pb-s-4)}.pb-article h1{font-size:clamp(1.85rem,3.2vw,2.6rem);line-height:1.15;letter-spacing:-.015em;margin:0 0 var(--pb-s-3)}.pb-article h2{font-size:1.55rem;margin:var(--pb-s-7) 0 var(--pb-s-3);letter-spacing:-.01em;border-bottom:1px solid var(--pb-border);padding-bottom:var(--pb-s-2)}.pb-article h3{font-size:1.2rem;margin:var(--pb-s-5) 0 var(--pb-s-2)}.pb-article p{margin:0 0 var(--pb-s-4)}.pb-article ul,.pb-article ol{padding-left:1.4rem;margin:0 0 var(--pb-s-4)}.pb-article li{margin-bottom:var(--pb-s-2)}.pb-article blockquote{border-left:3px solid var(--pb-accent);margin:var(--pb-s-5) 0;padding:var(--pb-s-2) var(--pb-s-4);background:var(--pb-bg-soft);color:var(--pb-text-muted);font-style:italic;border-radius:0 var(--pb-radius) var(--pb-radius) 0}.pb-article table{width:100%;border-collapse:collapse;margin:var(--pb-s-5) 0;font-size:.95rem}.pb-article th,.pb-article td{padding:var(--pb-s-3);text-align:left;border-bottom:1px solid var(--pb-border)}.pb-article th{background:var(--pb-bg-soft);font-weight:600}.pb-article code{font-family:var(--pb-font-mono);background:var(--pb-bg-soft);padding:2px 6px;border-radius:var(--pb-radius-sm);font-size:.9em}.pb-article__meta{display:flex;flex-wrap:wrap;gap:var(--pb-s-3);color:var(--pb-text-soft);font-size:.9rem;margin-bottom:var(--pb-s-5);padding-bottom:var(--pb-s-4);border-bottom:1px solid var(--pb-border)}.pb-article__category{display:inline-block;padding:2px 10px;background:var(--pb-bg-soft);border:1px solid var(--pb-border);border-radius:999px;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--pb-text-muted)}.pb-breadcrumb{font-size:.85rem;color:var(--pb-text-soft);margin-bottom:var(--pb-s-4);list-style:none;display:flex;flex-wrap:wrap;gap:var(--pb-s-2);padding:0}.pb-breadcrumb li:not(:last-child):after{content:"/";margin-left:var(--pb-s-2);color:var(--pb-text-soft)}.pb-breadcrumb a{color:var(--pb-text-soft);text-decoration:none}.pb-breadcrumb a:hover{color:var(--pb-text);text-decoration:underline}.pb-signup{background:var(--pb-bg-soft);border:1px solid var(--pb-border);border-radius:var(--pb-radius-lg);padding:var(--pb-s-6);margin:var(--pb-s-6) 0}.pb-signup h2,.pb-signup h3{margin:0 0 var(--pb-s-2)}.pb-signup p{color:var(--pb-text-muted);margin:0 0 var(--pb-s-4)}.pb-signup__form{display:flex;flex-wrap:wrap;gap:var(--pb-s-2)}.pb-signup__form input[type=email]{flex:1 1 240px;padding:12px 14px;border:1px solid var(--pb-border-strong);border-radius:var(--pb-radius);background:var(--pb-bg);color:var(--pb-text);font-size:1rem}.pb-signup__form input[type=email]:focus{outline:2px solid var(--pb-accent);outline-offset:1px}.pb-signup__legal{font-size:.8rem;color:var(--pb-text-soft);margin-top:var(--pb-s-3)}.pb-footer{border-top:1px solid var(--pb-border);margin-top:var(--pb-s-8);padding:var(--pb-s-7) 0 var(--pb-s-5);background:var(--pb-bg-soft);color:var(--pb-text-muted);font-size:.92rem}.pb-footer__cols{display:grid;grid-template-columns:1fr;gap:var(--pb-s-6);margin-bottom:var(--pb-s-6)}@media (min-width: 720px){.pb-footer__cols{grid-template-columns:1.3fr 1fr 1fr 1fr}}.pb-footer h4{margin:0 0 var(--pb-s-3);color:var(--pb-text);font-size:.95rem}.pb-footer ul{list-style:none;padding:0;margin:0}.pb-footer li{margin-bottom:6px}.pb-footer a{color:var(--pb-text-muted);text-decoration:none}.pb-footer a:hover{color:var(--pb-text);text-decoration:underline}.pb-footer__legal{border-top:1px solid var(--pb-border);padding-top:var(--pb-s-4);font-size:.82rem;color:var(--pb-text-soft)}.pb-mute{color:var(--pb-text-muted)}.pb-soft{color:var(--pb-text-soft)}.pb-small{font-size:.88rem}.pb-eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700;color:var(--pb-accent)}.pb-trust{font-size:.85rem;color:var(--pb-text-soft);margin-top:var(--pb-s-3);max-width:600px}.pb-tier{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:600}.pb-tier--permissive{background:#15803d1f;color:var(--pb-success)}.pb-tier--moderate{background:#b4530924;color:var(--pb-caution)}.pb-tier--restrictive{background:#b91c1c1f;color:var(--pb-warning)}.pb-compounds{display:grid;grid-template-columns:1fr;gap:var(--pb-s-3)}@media (min-width: 640px){.pb-compounds{grid-template-columns:repeat(2,1fr)}}@media (min-width: 960px){.pb-compounds{grid-template-columns:repeat(3,1fr)}}.pb-compound{display:block;padding:var(--pb-s-4);border:1px solid var(--pb-border);border-radius:var(--pb-radius);background:var(--pb-bg-card);text-decoration:none;color:var(--pb-text)}.pb-compound:hover{border-color:var(--pb-accent)}.pb-compound__name{font-weight:700;font-size:1.02rem}.pb-compound__line{color:var(--pb-text-muted);font-size:.9rem;margin-top:2px}.pb-skip{position:absolute;left:-9999px}.pb-skip:focus{position:fixed;left:8px;top:8px;background:var(--pb-brand);color:var(--pb-text-inverse);padding:8px 12px;border-radius:var(--pb-radius);z-index:100}