:root{--bg:#ffffff;--soft:#f4f6f8;--ink:#15191f;--muted:#5d6774;--line:#e1e5ea;--accent:#0b7a5a;--accent-ink:#ffffff;--danger:#b3261e;--radius:10px}
@media (prefers-color-scheme:dark){:root{--bg:#0f1318;--soft:#171c23;--ink:#e6eaef;--muted:#98a2b0;--line:#2a323c;--accent:#3ccf9a;--accent-ink:#0f1318}}
*{box-sizing:border-box}
html{color-scheme:light dark}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
h1,h2,h3{line-height:1.15;margin:0 0 .5rem;text-wrap:balance}
h1{font-size:clamp(1.8rem,4vw,2.6rem);letter-spacing:-.02em}
h2{font-size:1.35rem}
p{margin:0 0 1rem}
.wrap{max-width:1100px;margin:0 auto;padding-inline:16px}
.site-header{border-bottom:1px solid var(--line);background:var(--bg)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px}
.brand{font-weight:700;text-decoration:none;color:var(--ink);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);display:inline-block}
.nav{display:flex;gap:18px;font-size:.95rem}
.nav a{color:var(--muted);text-decoration:none}
.nav a:hover{color:var(--ink)}
.site-footer{border-top:1px solid var(--line);margin-top:48px;padding-block:24px;color:var(--muted);font-size:.9rem}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--soft);color:var(--ink);padding:9px 14px;border-radius:8px;font:inherit;font-size:.95rem;cursor:pointer;text-decoration:none}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.btn.small{padding:5px 9px;font-size:.85rem}
.btn.danger{color:var(--danger)}
.badge{display:inline-block;font-size:.75rem;letter-spacing:.04em;text-transform:uppercase;padding:2px 8px;border-radius:999px;background:var(--soft);color:var(--muted);border:1px solid var(--line)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:var(--bg);display:flex;flex-direction:column;gap:8px}
.card h3{margin:0}
.card p{margin:0;color:var(--muted);font-size:.95rem}
.card .replaces{font-size:.82rem;color:var(--muted)}
.card.queued{opacity:.7}
.hero{padding-block:40px 24px}
.hero p{max-width:60ch;color:var(--muted);font-size:1.1rem}
.prose{max-width:68ch}
.prose h2{margin-top:2rem}
.prose ul{padding-left:1.2rem}
.callout{border-left:3px solid var(--accent);background:var(--soft);padding:12px 16px;border-radius:0 8px 8px 0;margin:1rem 0}
.muted{color:var(--muted)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media print{.site-header,.site-footer,.related{display:none!important}}
.related{margin-top:48px}
.related .more{margin-top:16px;color:var(--muted);font-size:.95rem}
.eyebrow{display:block;font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:.4rem}
.prose .vs-list{list-style:none;padding:0;display:grid;gap:12px}
.vs-list li{border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.vs-list a{font-weight:600}
.vs-list p{margin:4px 0 0;color:var(--muted);font-size:.95rem}

/* Author display rules must never defeat the hidden attribute. */
[hidden]{display:none!important}
/* Plain Invoice: the tool is the home page, so the hero is one line and the toolbar is on the first screen. */
.inv .hero.pi-hero{padding-block:18px 6px}.inv .hero.pi-hero h1{font-size:clamp(1.45rem,4.2vw,2.1rem);letter-spacing:-.02em;margin:0}.inv .hero.pi-hero p{margin:6px 0 0;font-size:.95rem;color:var(--muted)}
.pi-page{padding-block:28px 0}.pi-page h1{margin-bottom:12px}.pi-lede{font-size:1.1rem;color:var(--muted)}.pi-cta{display:inline-flex;margin:8px 0 24px}
.pi-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:20px 0}.pi-plan{border:1px solid var(--line);border-radius:var(--radius);padding:20px}.pi-plan h2{margin:0 0 4px}.pi-price{font-size:1.6rem;font-weight:700;margin:6px 0 12px}.pi-plan ul{padding-left:20px;margin:0 0 12px}.pi-plan li{margin:4px 0}.pi-soon{border-color:var(--accent)}
.pi-example{border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;background:var(--soft);margin:16px 0}.pi-example ul{margin:8px 0;padding-left:20px}
.pi-guides{list-style:none;padding:0;display:grid;gap:12px}.pi-guides li{border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px}.pi-guides p{margin:4px 0 0;color:var(--muted);font-size:.95rem}
.inv-bank{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.inv-bank .wide{grid-column:1/-1}
.inv-history{border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:24px 0 0}.inv-history h2{font-size:1.1rem;margin:0 0 4px}.inv-hlist{list-style:none;padding:0;margin:10px 0 0}.inv-hrow{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:10px 0;border-top:1px solid var(--line)}.inv-hwhat{display:flex;flex-direction:column;min-width:0}.inv-hwhat span{font-size:.85rem;color:var(--muted)}.inv-hacts{display:flex;gap:6px}.inv-htag{font-size:.75rem;font-weight:700;padding:2px 8px;border-radius:999px;border:1px solid var(--line)}.inv-htag-paid{color:var(--accent);border-color:var(--accent)}.inv-htag-overdue{color:var(--danger);border-color:var(--danger)}
@media(max-width:540px){.inv-hrow{grid-template-columns:1fr auto}.inv-hacts{grid-column:1/-1}.inv-bank{grid-template-columns:1fr}}
#pro-form label{display:block;font-weight:600;font-size:.9rem;margin:12px 0 4px}#pro-form input,#pro-form select{font:inherit;width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink)}
.pi-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.pi-link{background:none;border:0;padding:0;font:inherit;color:var(--accent);text-decoration:underline;cursor:pointer}
.pi-picked{border-color:var(--accent)!important;background:var(--soft)}
.inv-pro{font-size:.82rem;color:var(--muted);margin:10px 0 0}.inv-pro a{font-weight:600}
.inv-bulk-errors{color:var(--danger);font-size:.88rem;padding-left:20px;margin:8px 0}#inv-history-csv{margin-top:10px}#inv-bulk-make{margin-top:12px}
.inv-sync-email{flex:1;min-width:200px;margin:0!important}
.inv .hero.pi-hero p.pi-jump{font-size:.9rem;margin-top:8px}.pi-jump a{font-weight:600}.inv-history{scroll-margin-top:12px}
.inv-more{position:relative}.inv-more>summary{list-style:none;cursor:pointer}.inv-more>summary::-webkit-details-marker{display:none}.inv-more-list{position:absolute;z-index:5;top:calc(100% + 6px);left:0;display:flex;flex-direction:column;gap:6px;padding:8px;background:var(--bg);border:1px solid var(--line);border-radius:10px;box-shadow:0 6px 24px rgba(0,0,0,.12);min-width:180px}.inv-more-list .btn{width:100%;justify-content:flex-start}