/* ===== Design system (shared). Each site sets --brand/--brand-2 on :root in its own <style>. No web fonts: system stack for speed. ===== */
:root{--brand:#6d28d9;--brand-2:#db2777;--brand-ink:#fff;
--bg:#f6f7fb;--surface:#fff;--surface-2:#f1f3f9;--ink:#0f172a;--muted:#5b6478;--line:#e3e7f0;
--good:#047857;--good-bg:#ecfdf5;--bad:#b91c1c;--bad-bg:#fef2f2;--warn:#b45309;--warn-bg:#fffbeb;
--r:16px;--r-sm:10px;--shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);
--font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
[data-theme=dark]{--bg:#0b1020;--surface:#121a2e;--surface-2:#1a2440;--ink:#e8ecf6;--muted:#9aa5bf;--line:#26314f;
--good:#34d399;--good-bg:#06291f;--bad:#f87171;--bad-bg:#2c1214;--warn:#fbbf24;--warn-bg:#2a2108;--shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.3)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;font:16px/1.6 var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:color-mix(in srgb,var(--brand) 64%,#000)}[data-theme=dark] a{color:color-mix(in srgb,var(--brand) 60%,#fff)}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:var(--surface);padding:8px 12px;border-radius:8px}
:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 70%,transparent);outline-offset:2px}
.icon{width:1.15em;height:1.15em;vertical-align:-.2em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
/* header */
.topbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:12px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.topnav{margin-left:auto;display:flex;gap:4px;align-items:center}
.topnav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:.92rem;padding:8px 10px;border-radius:8px}.topnav a:hover{color:var(--ink);background:var(--surface-2)}
@media(max-width:640px){.topnav a.hide-sm{display:none}}
.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
/* hero */
.hero{position:relative;overflow:hidden;padding:36px 0 20px}
.hero::before{content:"";position:absolute;inset:-40% -10% auto auto;width:620px;height:620px;border-radius:50%;background:radial-gradient(closest-side,color-mix(in srgb,var(--brand) 22%,transparent),transparent);pointer-events:none}
.eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:color-mix(in srgb,var(--brand) 62%,#000);background:color-mix(in srgb,var(--brand) 12%,transparent);padding:5px 10px;border-radius:999px}
[data-theme=dark] .eyebrow{color:color-mix(in srgb,var(--brand) 55%,#fff)}
h1{font-size:clamp(1.9rem,5.2vw,3.1rem);line-height:1.08;letter-spacing:-.03em;margin:14px 0 12px;font-weight:850}
h1 .grad{background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(1.3rem,3vw,1.7rem);letter-spacing:-.02em;line-height:1.2;margin:0 0 12px}
h3{font-size:1.08rem;margin:0 0 8px}
.lede{font-size:1.1rem;color:var(--muted);max-width:720px;margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;padding:6px 10px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--muted)}
/* layout */
.tool{display:grid;gap:18px;grid-template-columns:minmax(0,1fr);align-items:start;margin:8px 0 28px}
@media(min-width:960px){.tool{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr)}.sticky{position:sticky;top:76px}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px}
.panel h2{font-size:1.15rem;display:flex;align-items:center;gap:8px}
.step{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:8px;font-size:.85rem;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
fieldset{border:0;margin:0 0 18px;padding:0}legend{font-weight:800;margin-bottom:10px;display:flex;align-items:center;gap:8px;font-size:1.02rem}
.fields{display:grid;gap:12px;grid-template-columns:1fr 1fr}.fields .full{grid-column:1/-1}
@media(max-width:420px){.fields{grid-template-columns:1fr}}
label,.label{display:block;font-size:.84rem;font-weight:700;margin-bottom:5px;color:var(--ink)}
.hint{display:block;font-size:.78rem;color:var(--muted);margin-top:4px;line-height:1.4}
input,select{width:100%;font:inherit;font-size:1rem;color:var(--ink);background:var(--surface-2);border:1.5px solid transparent;border-radius:var(--r-sm);padding:10px 12px;min-height:46px;transition:border-color .15s,background .15s}
input:hover,select:hover{border-color:var(--line)}input:focus,select:focus{outline:none;border-color:var(--brand);background:var(--surface)}
input[aria-invalid=true]{border-color:var(--bad)}
.money{position:relative}.money::before{content:"$";position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:600;pointer-events:none}.money input{padding-left:24px}
.pct{position:relative}.pct::after{content:"%";position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-weight:600;pointer-events:none}.pct input{padding-right:28px}
.seg{display:flex;flex-wrap:wrap;gap:6px;background:var(--surface-2);padding:4px;border-radius:12px}
.seg button{flex:1 1 auto;border:0;background:transparent;color:var(--muted);font:inherit;font-weight:700;font-size:.9rem;padding:8px 10px;border-radius:9px;cursor:pointer;min-height:40px}
.seg button[aria-pressed=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:700;border:0;border-radius:12px;padding:11px 16px;min-height:46px;cursor:pointer;text-decoration:none;color:var(--brand-ink);background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.btn.ghost{background:var(--surface-2);color:var(--ink)}.btn.sm{min-height:38px;padding:7px 12px;font-size:.9rem}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
/* results */
.verdict{display:flex;gap:12px;align-items:flex-start;padding:16px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line)}
.verdict .vicon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;flex:none;color:#fff;background:var(--muted)}
.verdict.good{background:var(--good-bg);border-color:color-mix(in srgb,var(--good) 35%,transparent)}.verdict.good .vicon{background:var(--good)}
.verdict.bad{background:var(--bad-bg);border-color:color-mix(in srgb,var(--bad) 35%,transparent)}.verdict.bad .vicon{background:var(--bad)}
.verdict.warn{background:var(--warn-bg);border-color:color-mix(in srgb,var(--warn) 35%,transparent)}.verdict.warn .vicon{background:var(--warn)}
.verdict strong.big{display:block;font-size:1.25rem;letter-spacing:-.01em;line-height:1.25}
.stats{display:grid;gap:10px;grid-template-columns:repeat(2,1fr);margin:14px 0}
@media(min-width:560px){.stats.s3{grid-template-columns:repeat(3,1fr)}}
.stat{background:var(--surface-2);border-radius:12px;padding:12px}.stat .k{font-size:.78rem;color:var(--muted);font-weight:600}.stat .v{font-size:1.35rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.pos{color:var(--good)}.neg{color:var(--bad)}
table{width:100%;border-collapse:collapse;font-size:.92rem;font-variant-numeric:tabular-nums}
th{font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:700}
th,td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:right}th:first-child,td:first-child{text-align:left}
tr.best td{background:color-mix(in srgb,var(--good) 9%,transparent)}
.table-scroll{position:relative;overflow-x:auto;-webkit-overflow-scrolling:touch}
.badge{display:inline-block;font-size:.7rem;font-weight:800;padding:2px 7px;border-radius:999px;background:var(--surface-2);color:var(--muted);vertical-align:middle}
.badge.good{background:var(--good-bg);color:var(--good)}.badge.bad{background:var(--bad-bg);color:var(--bad)}.badge.warn{background:var(--warn-bg);color:var(--warn)}
.chart{width:100%;height:auto;display:block;margin:6px 0}.chart text{fill:var(--muted);font-size:11px;font-family:var(--font)}
.chart .grid{stroke:var(--line)}.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.82rem;color:var(--muted)}.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:0}
.empty{text-align:center;color:var(--muted);padding:26px 12px;border:1.5px dashed var(--line);border-radius:14px}
.empty .icon{width:34px;height:34px;color:var(--brand);margin-bottom:6px}
.alert{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:12px;font-size:.9rem;margin-top:10px;background:var(--warn-bg);color:var(--ink);border:1px solid color-mix(in srgb,var(--warn) 30%,transparent)}
.alert.err{background:var(--bad-bg);border-color:color-mix(in srgb,var(--bad) 30%,transparent)}
.disclaimer{font-size:.88rem;color:var(--ink);background:var(--warn-bg);border:1px solid color-mix(in srgb,var(--warn) 30%,transparent);border-radius:12px;padding:12px 14px}
/* content */
.content{display:grid;gap:18px;margin:10px 0 30px}
.prose{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.prose p,.prose li{color:color-mix(in srgb,var(--ink) 88%,var(--muted))}.prose h2{margin-top:0}.prose h3{margin-top:18px}
.answer{border-left:4px solid var(--brand);background:var(--surface-2);padding:12px 14px;border-radius:0 12px 12px 0;margin:10px 0}
.formula{font-family:var(--mono);font-size:.88rem;background:var(--surface-2);padding:12px;border-radius:10px;overflow-x:auto;white-space:pre-wrap}
details.faq{border-bottom:1px solid var(--line);padding:4px 0}details.faq summary{cursor:pointer;font-weight:700;padding:10px 0;list-style:none;display:flex;justify-content:space-between;gap:10px}
details.faq summary::-webkit-details-marker{display:none}details.faq summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--brand)}details.faq[open] summary::after{content:"–"}
.sources{font-size:.86rem;color:var(--muted)}.sources li{margin-bottom:6px}.updated{font-size:.82rem;color:var(--muted)}
.crumbs{font-size:.82rem;color:var(--muted);margin-top:14px}.crumbs a{color:var(--muted)}
.related{display:grid;gap:12px;grid-template-columns:1fr}@media(min-width:720px){.related{grid-template-columns:repeat(3,1fr)}}
.rcard{display:block;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;transition:transform .15s,border-color .15s}
.rcard:hover{transform:translateY(-2px);border-color:var(--rc,var(--brand))}.rcard b{display:block;margin-bottom:4px}.rcard span{font-size:.88rem;color:var(--muted)}
.rcard .dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--rc);margin-right:6px}
.signup{display:flex;gap:8px;flex-wrap:wrap}.signup input{flex:1 1 220px}
footer.site{margin-top:20px;padding:26px 0 40px;border-top:1px solid var(--line);font-size:.86rem;color:var(--muted)}
footer.site a{color:var(--muted)}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%) translateY(30px);opacity:0;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;font-weight:700;font-size:.9rem;transition:.25s;z-index:50;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ac{position:relative}.ac-list{position:absolute;z-index:30;left:0;right:0;top:100%;margin:4px 0 0;padding:4px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);max-height:260px;overflow:auto}
.ac-list li{padding:8px 10px;border-radius:8px;cursor:pointer;display:flex;justify-content:space-between;gap:8px}.ac-list li[aria-selected=true],.ac-list li:hover{background:var(--surface-2)}
.pchip{display:flex;align-items:center;gap:8px;background:var(--surface-2);border-radius:12px;padding:8px 10px;margin-top:8px}
.pos-tag{color:#fff!important}.pchip .pos-tag{font-size:.7rem;font-weight:800;color:#fff;border-radius:6px;padding:2px 6px}
.pchip .x{margin-left:auto;border:0;background:none;color:var(--muted);cursor:pointer;font-size:1.2rem;min-width:32px;min-height:32px}
.bar{height:10px;border-radius:999px;background:var(--surface-2);overflow:hidden}.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2))}

[data-theme=dark] .eyebrow{color:color-mix(in srgb,var(--brand) 60%,#fff)}
/* ---- v3 brand layer ---- */
:root{--display:"Brand",var(--font)}
h1,h2,h3,.wordmark,.stat .v,.verdict .big{font-family:var(--display)}
h1{font-weight:800;letter-spacing:-.035em}h2{letter-spacing:-.02em}
.brand{gap:10px}.logo-mark{flex:none;border-radius:10px;transition:transform .3s cubic-bezier(.3,1.6,.5,1)}.brand:hover .logo-mark{transform:rotate(-8deg) scale(1.06)}
.logo-mark.sm{width:26px;height:26px;vertical-align:middle;margin-right:8px;border-radius:8px}
.wordmark{font-weight:800;font-size:1.18rem;letter-spacing:-.02em}.wm-hi{background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero{padding:40px 0 26px}.hero-grid{display:grid;gap:22px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.25fr .9fr}}
.hero-visual{display:none}@media(min-width:900px){.hero-visual{display:block}}
.hero-art{width:100%;height:auto;max-width:420px;margin-left:auto;display:block;filter:drop-shadow(0 18px 30px color-mix(in srgb,var(--brand) 22%,transparent))}
.hero-art text{font-family:var(--display)}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 14px}
.float-a{animation:floaty 6s ease-in-out infinite}.float-b{animation:floaty 6s ease-in-out -3s infinite}
@keyframes floaty{50%{transform:translateY(-8px)}}
.draw{stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1.4s .3s ease-out forwards}@keyframes draw{to{stroke-dashoffset:0}}
.pop{transform-box:fill-box;transform-origin:center;animation:pop .5s 1.2s cubic-bezier(.3,1.6,.5,1) both}@keyframes pop{from{transform:scale(0);opacity:0}}
.btn{transition:transform .12s,box-shadow .2s,filter .2s}.btn:hover{filter:brightness(1.06);box-shadow:0 6px 18px color-mix(in srgb,var(--brand) 30%,transparent)}.btn:active{transform:scale(.97)}
.btn.ghost:hover{box-shadow:none;filter:none;background:color-mix(in srgb,var(--brand) 10%,var(--surface-2))}
.icon-btn{transition:transform .2s}.icon-btn:hover{transform:rotate(-12deg)}
.verdict,.stats{animation:rise .35s ease-out}@keyframes rise{from{opacity:.0;transform:translateY(6px)}}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}.sec-head h2{margin:0}
.guide-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));margin:12px 0 4px}
.gcard{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;transition:transform .15s,border-color .15s,box-shadow .2s}
.gcard:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:0 10px 24px color-mix(in srgb,var(--brand) 14%,transparent)}
.gcard span{font-size:.88rem;color:var(--muted)}.gcard b{font-family:var(--display);font-size:1.02rem;line-height:1.25}
.gtag{align-self:flex-start;font-size:.72rem!important;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:color-mix(in srgb,var(--brand) 60%,#000)!important;background:color-mix(in srgb,var(--brand) 10%,transparent);padding:3px 8px;border-radius:999px}
[data-theme=dark] .gtag{color:color-mix(in srgb,var(--brand) 55%,#fff)!important}
.crumbs.top{margin:18px 0 0}
.page-hero{padding:14px 0 6px}.page-hero h1{font-size:clamp(1.8rem,4.6vw,2.7rem);margin:12px 0 10px}
.answer-box{display:flex;gap:12px;align-items:flex-start;background:color-mix(in srgb,var(--brand) 8%,var(--surface));border:1px solid color-mix(in srgb,var(--brand) 30%,var(--line));border-left:5px solid var(--brand);border-radius:14px;padding:14px 16px;margin:14px 0}
.answer-box .icon{flex:none;color:var(--brand);margin-top:3px}.answer-box p{margin:0}
.page-grid{display:grid;gap:18px;margin:12px 0 20px;grid-template-columns:minmax(0,1fr)}@media(min-width:960px){.page-grid{grid-template-columns:minmax(0,1fr) 280px}}
.side{display:grid;gap:14px;align-content:start}@media(min-width:960px){.side{position:sticky;top:76px}}
.cta-card{border-radius:var(--r);padding:18px;color:#fff;background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 80%,#000),color-mix(in srgb,var(--brand-2) 80%,#000))}
.cta-card b{font-family:var(--display);font-size:1.15rem}.cta-card p{color:#fff;opacity:.95;margin:6px 0 12px}.cta-card .btn{background:#fff;color:#111827}
.side-links{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px}.side-links h2{font-size:1rem;margin:0 0 8px}.side-links ul{margin:0;padding-left:18px}.side-links li{margin:5px 0;font-size:.92rem}
.page-body h2{margin-top:22px}.page-body table{font-size:.92rem}
.foot-grid{display:grid;gap:18px;margin-bottom:14px}@media(min-width:760px){.foot-grid{grid-template-columns:1.2fr 1fr 1fr 1fr}}
.foot-h{font-size:.95rem;margin:4px 0 8px}.foot-links{list-style:none;padding:0;margin:0}.foot-links li{margin:5px 0}
.mini{display:grid;gap:8px 14px;grid-template-columns:minmax(0,1fr);background:var(--surface-2);border-radius:14px;padding:16px;margin:12px 0}
@media(min-width:600px){.mini:not(.bulk){grid-template-columns:200px 1fr;align-items:center}}
.mini label{font-weight:600;font-size:.92rem}.mini-out{grid-column:1/-1;display:block;font-size:1.05rem;padding:12px;border-radius:10px;background:var(--surface);border:1px solid var(--line)}
.row3{display:grid;gap:10px}@media(min-width:600px){.row3{grid-template-columns:repeat(3,1fr)}}.row3 label{display:grid;gap:4px}
table.bk input{min-width:70px}table.bk td:first-child input{min-width:130px}
.gloss dt{font-weight:800;margin-top:12px;font-family:var(--display)}.gloss dd{margin:2px 0 0}
ul.cols{columns:2 180px;padding-left:18px}ul.cols li{margin:3px 0}
@media (prefers-reduced-motion:reduce){.float-a,.float-b,.draw,.pop{animation:none!important;stroke-dashoffset:0}}
.answer-box .answer{background:none;border:0;padding:0;margin:0;border-radius:0}
/* ---- v4: simple forms ---- */
.simple .q{margin:0 0 16px}.simple .q>label,.simple .q>.label{display:block;font-family:var(--display);font-weight:700;font-size:1.05rem;margin-bottom:4px}
.simple .q .hint{margin:0 0 6px;display:block}
.money.big input,.big-in{font-size:1.25rem;font-weight:700;min-height:52px}
.pair{display:grid;gap:12px;grid-template-columns:1fr 1fr}.pair .col{background:var(--surface-2);border-radius:12px;padding:12px}.pair .col h3{margin:0 0 8px;font-size:1rem}.pair label{font-size:.88rem;font-weight:600}
.presets{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.presets button{font:inherit;font-size:.86rem;font-weight:700;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:7px 12px;min-height:36px;cursor:pointer;transition:transform .12s,background .15s,border-color .15s}
.presets button:hover{border-color:var(--brand)}.presets button:active{transform:scale(.95)}
.presets button[aria-pressed=true]{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent}
.stepper{display:flex;align-items:stretch;gap:0;max-width:200px}.stepper input{text-align:center;border-radius:0}.stepper button{font:inherit;font-size:1.3rem;font-weight:800;width:48px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);cursor:pointer}
.stepper button:first-child{border-radius:12px 0 0 12px}.stepper button:last-child{border-radius:0 12px 12px 0}
input[type=range]{width:100%;accent-color:var(--brand);min-height:32px}
details.adv{border:1px dashed var(--line);border-radius:12px;padding:0 14px;margin-top:8px}
details.adv>summary{cursor:pointer;font-weight:700;padding:13px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
details.adv>summary::-webkit-details-marker{display:none}details.adv>summary::after{content:"+";font-size:1.3rem;color:var(--brand)}details.adv[open]>summary::after{content:"–"}
details.adv[open]{padding-bottom:14px}details.adv fieldset{margin-top:6px}
.how{display:flex;gap:10px;align-items:flex-start;font-size:.95rem;color:var(--muted);margin:8px 0 0}.how .icon{flex:none;color:var(--brand);margin-top:3px}
.lookup{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.lookup a{font-size:.85rem;font-weight:700;text-decoration:none;border-radius:8px;padding:6px 10px;background:color-mix(in srgb,var(--brand) 10%,var(--surface));border:1px solid color-mix(in srgb,var(--brand) 25%,var(--line))}
/* hub tool cards */
.tool-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));margin:6px 0 26px}
.tcard{position:relative;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;overflow:hidden;transition:transform .18s,box-shadow .2s,border-color .2s}
.tcard::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.tcard:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 16px 34px color-mix(in srgb,var(--brand) 18%,transparent)}
.tcard .ticon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2))}.tcard .ticon .icon{width:24px;height:24px}
.tcard b{font-family:var(--display);font-size:1.2rem;line-height:1.2}.tcard span{color:var(--muted);font-size:.93rem}.tcard .go{margin-top:auto;font-weight:800;color:color-mix(in srgb,var(--brand) 64%,#000);font-size:.92rem}
[data-theme=dark] .tcard .go{color:color-mix(in srgb,var(--brand) 55%,#fff)}
.tcard.new::after{content:"New";position:absolute;top:14px;right:14px;font-size:.7rem;font-weight:800;background:var(--accent);color:#111;border-radius:999px;padding:3px 8px}
.list-plain{list-style:none;padding:0;margin:0}.list-plain li{display:flex;gap:10px;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}
.check-list li{justify-content:flex-start}.check-list input{width:22px;height:22px;min-height:0;accent-color:var(--brand)}
.check-list label{font-weight:500}.done{text-decoration:line-through;color:var(--muted)}
@media print{.topbar,.skip,footer.site,.side,.related,#updates,.hero-visual,.actions,.presets,.crumbs,.icon-btn,section[aria-labelledby=more],section[aria-labelledby=kg],.no-print{display:none!important}
 body{background:#fff;color:#000}.panel,.prose{box-shadow:none;border:1px solid #ccc}details.adv{display:none}.sticky{position:static}.tool{display:block}a{color:#000}}
/* v4 hub + tool pages */
.sec-title{font-family:"Brand",var(--font);font-size:1.6rem;margin:8px 0 14px}
.tool-hero{padding-bottom:6px}.tool-hero h1{margin-bottom:4px}
.lg-panel{margin-top:12px}.lg-panel>summary{font-weight:700}
/* feedback widget */
.fb-btn{position:fixed;right:14px;bottom:14px;z-index:40;display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 .88rem var(--font);box-shadow:0 6px 18px rgba(0,0,0,.14);cursor:pointer}
.fb-btn:hover{border-color:var(--brand)}
dialog.fb{border:1px solid var(--line);border-radius:18px;padding:20px;max-width:420px;width:calc(100% - 28px);background:var(--surface);color:var(--ink)}
dialog.fb::backdrop{background:rgba(2,6,23,.5)}
dialog.fb h2{font-size:1.2rem;margin:0 0 10px}
.fb-thumbs{display:flex;gap:8px;margin:6px 0 12px}.fb-thumbs button{flex:1;padding:10px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--ink);font:600 1rem var(--font);cursor:pointer}
.fb-thumbs button[aria-pressed=true]{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 14%,transparent)}
dialog.fb textarea,dialog.fb input{width:100%;box-sizing:border-box}
dialog.fb .fb-url{font-size:.8rem;color:var(--muted);word-break:break-all}
dialog.fb .actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
@media print{.fb-btn{display:none}}
/* reserve space for JS-filled results (avoids layout shift) */
#ssChips{min-height:104px}#ssOut{min-height:420px}#aChips,#bChips{min-height:48px}#trOut{min-height:780px}#dbOut{min-height:900px}
#cpPlans{min-height:1680px}@media(min-width:700px){#cpPlans{min-height:1160px}}#cpOut{min-height:600px}
/* v5 share + embed */
.share-embed{margin:22px 0;padding:18px 20px;border-radius:16px;background:var(--surface-2)}.share-embed h2{margin:0 0 4px;font-size:1.15rem}
.embed-box{margin-top:12px}.embed-box summary{cursor:pointer;font-weight:700;min-height:32px}.embed-code{width:100%;font:13px/1.4 ui-monospace,monospace;padding:10px;border-radius:10px;border:1px solid var(--line,#ccc);background:var(--surface,#fff);color:var(--ink);box-sizing:border-box}
html.embed .topbar,html.embed footer.site,html.embed .content,html.embed .crumbs,html.embed .share-embed,html.embed .skip,html.embed .how,html.embed .eyebrow,html.embed #fbBtn,html.embed .fb-btn{display:none!important}
html.embed .page-hero{padding-top:8px;padding-bottom:4px}html.embed body{padding-bottom:44px}
.embed-credit{position:fixed;right:10px;bottom:10px;z-index:50;background:var(--brand);color:var(--brand-ink,#fff);padding:6px 12px;border-radius:999px;font-weight:700;font-size:.85rem;text-decoration:none}
/* multi-area editor (BagOrBulk) */
.areas{display:grid;gap:10px;margin:8px 0 10px}
.area{display:grid;gap:8px;grid-template-columns:repeat(3,minmax(0,1fr)) 44px;align-items:end;padding:12px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line)}
.area label{font-size:.85rem;font-weight:600;white-space:nowrap}.area>.shape{grid-column:1/-1}.area input{width:100%;min-width:0}.area .rm{align-self:end;width:44px;height:44px}
.chart.diagram{max-width:420px;margin:10px auto 0;display:block}.chart.diagram text{font-size:13px;fill:var(--ink)}

/* promo cards (Gumroad companions) */
.promo{margin:18px 0}.promo a{display:flex;align-items:center;gap:14px;padding:10px;border:1px solid var(--line);border-radius:14px;background:var(--surface-2);color:var(--ink);text-decoration:none}
.promo a:hover{border-color:var(--brand)}.promo img{width:120px;height:auto;aspect-ratio:240/135;border-radius:8px;flex:none;background:var(--line)}
.promo-t{display:flex;flex-direction:column;gap:2px;font-size:.95rem}.promo-t b{color:var(--ink)}.promo-t small{color:var(--muted);font-size:.8rem}
.promo-t b::after{content:" \2197";color:var(--brand)}
footer.site .promo a{padding:8px;max-width:460px}footer.site .promo img{width:84px}footer.site .promo-t{font-size:.86rem}
html.embed .promo{display:none!important}
@media print{.promo{display:none}}