/* site-kit base — every color/font comes from vars set in site.config theme */
:root{
  --bg:#fff;--surface:#f7f7f7;--ink:#111;--muted:#666;--border:#e5e5e5;
  --accent:#2457ff;--accent-ink:#fff;--accent-soft:#eef2ff;--link:var(--accent);
  --warn:#b45309;--warn-soft:#fff7ed;--tip:#047857;--tip-soft:#ecfdf5;
  --font-body:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-display:var(--font-body);
  --radius:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg) var(--bg-image,none) no-repeat;color:var(--ink);font:17px/1.65 var(--font-body);text-rendering:optimizeLegibility}
img{max-width:100%;height:auto}
a{color:var(--link);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;background:var(--surface);padding:8px 12px;z-index:9}

.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.wrap--narrow{max-width:760px}
.wrap--wide{max-width:960px}

/* header */
.site-head{border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);position:sticky;top:0;z-index:5}
.site-head__inner{display:flex;align-items:center;gap:20px;min-height:60px;flex-wrap:wrap;padding-block:8px}
.brand{display:flex;align-items:center;gap:10px;font:700 18px/1 var(--font-display);color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.site-nav{display:flex;gap:4px 18px;flex-wrap:wrap;margin-left:auto;font-size:15px}
.site-nav a{color:var(--muted);text-decoration:none}
.site-nav a:hover,.site-nav a[aria-current]{color:var(--ink)}
@media (max-width:640px){.site-nav{margin-left:0;width:100%;overflow-x:auto;flex-wrap:nowrap;white-space:nowrap;padding-bottom:4px}}

/* page head */
.crumbs{font-size:14px;color:var(--muted);margin:22px 0 0;display:flex;gap:8px}
.crumbs a{color:var(--muted)}
.page-head{margin:28px 0 22px}
.page-head--home{margin-top:44px}
.kicker{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 10px}
h1{font:var(--display-weight,800) clamp(32px,5.4vw,50px)/1.08 var(--font-display);letter-spacing:var(--display-tracking,-.02em);font-style:var(--display-style,normal);text-transform:var(--display-transform,none);margin:0 0 14px;text-wrap:balance}
.lede{font-size:clamp(18px,2.2vw,20px);color:var(--muted);margin:0 0 10px;max-width:62ch}
.meta{font-size:14px;color:var(--muted);margin:0}

/* prose */
.prose h2,.faq h2,.related h2{font:var(--display-weight,750) clamp(24px,3.2vw,30px)/1.2 var(--font-display);letter-spacing:var(--display-tracking,-.01em);font-style:var(--display-style,normal);text-transform:var(--display-transform,none);margin:48px 0 14px;scroll-margin-top:84px}
.prose h3{font:700 20px/1.3 var(--font-display);margin:30px 0 8px}
.prose p,.prose ul,.prose ol{margin:0 0 16px}
.prose li{margin:4px 0}
.prose strong{font-weight:700}

/* components */
.answer{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius);padding:18px 20px;margin:0 0 26px}
.answer__label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--accent);margin-bottom:6px}
.answer p:last-child{margin-bottom:0}
.callout{border-radius:var(--radius);padding:14px 18px;margin:20px 0;background:var(--accent-soft);font-size:16px}
.callout--warn{background:var(--warn-soft)}
.callout--warn strong{color:var(--warn)}
.callout--tip{background:var(--tip-soft)}
.callout--tip strong{color:var(--tip)}
.table-wrap{overflow-x:auto;margin:18px 0 22px;border:1px solid var(--border);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;font-size:15.5px}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:top}
tr:last-child th,tr:last-child td{border-bottom:0}
thead th{background:var(--surface);font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.facts th{width:38%;color:var(--muted);font-weight:600}
caption{text-align:left;padding:10px 14px;font-weight:700}
.steps{counter-reset:s;list-style:none;padding:0;margin:20px 0}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 52px;margin:0}
.steps li::before{content:counter(s);position:absolute;left:0;top:-2px;width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:800;font-size:15px}
.steps li > div{color:var(--muted)}
.toc{border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;margin:0 0 10px;font-size:15.5px}
.toc__label{font-weight:700;margin-bottom:4px}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px}
@media (max-width:560px){.toc ol{columns:1}}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:18px 0}
.card{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--ink);background:var(--surface);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-1px)}
.card__title{font-weight:700}
.card__desc{font-size:14.5px;color:var(--muted)}

.faq details{border-bottom:1px solid var(--border);padding:4px 0}
.faq summary{cursor:pointer;font-weight:650;padding:12px 28px 12px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{display:inline;font:inherit;margin:0}
.faq summary::after{content:"+";position:absolute;right:4px;top:8px;font-size:22px;color:var(--muted)}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 0 14px;color:var(--muted)}
.related ul,.sources ul,.changelog ul{padding-left:20px}
.changelog{font-size:15px}
.changelog h2{font-size:clamp(20px,2.6vw,24px)!important}
.changelog time{font-weight:650}
.sources{font-size:15px}
.sources h2{font-size:clamp(20px,2.6vw,24px)!important}
.sources__note{color:var(--muted);font-size:13.5px}
.ad{margin:28px 0;min-height:100px}
.quote{margin:22px 0;padding:6px 0 6px 18px;border-left:3px solid var(--accent)}
.quote p{margin:0 0 6px;font-size:18px;font-style:italic}
.quote footer{font-size:14px;color:var(--muted)}
.quote cite{font-style:normal}
.meta a{color:inherit}

/* footer */
.site-foot{border-top:1px solid var(--border);margin-top:72px;padding:28px 0 40px;font-size:14px;color:var(--muted)}
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 18px;margin-bottom:12px}
.foot-nav a{color:var(--muted)}
.disclaimer{max-width:70ch}
.copy{margin:6px 0 0}

/* ===== v2 reading layout ===== */
/* Article grid: reading column + sticky TOC rail on wide screens */
.article{margin-top:8px}
.article__body{min-width:0}
.article:not(.article--toc) .article__body{max-width:700px}
@media (min-width:1000px){
  .article--toc{display:grid;grid-template-columns:minmax(0,1fr) 216px;gap:0 44px;align-items:start}
  .article--toc .toc-rail{grid-column:2;grid-row:1;position:sticky;top:84px;max-height:calc(100vh - 110px);overflow:auto}
  .article--toc .article__body{grid-column:1;grid-row:1}
}
.toc-rail .toc{margin:0 0 18px;padding:12px 14px;font-size:14px}
.toc-rail .toc ol{columns:1;padding-left:0;list-style:none;margin:6px 0 0}
.toc-rail .toc li{margin:0}
.toc-rail .toc a{display:block;padding:5px 8px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;line-height:1.35}
.toc-rail .toc a:hover{color:var(--ink)}
.toc-rail .toc a.is-active{color:var(--ink);border-left-color:var(--accent);background:var(--accent-soft)}
.toc summary{cursor:pointer;list-style:none;font-weight:700}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"▾";margin-left:6px;color:var(--muted)}
.toc[open] summary::after{content:"▴"}
@media (min-width:1000px){.toc-rail .toc summary{pointer-events:none}.toc-rail .toc summary::after{content:none}}
.answer{margin-bottom:22px}

/* Stat tiles */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:0 0 22px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;display:flex;flex-direction:column;gap:4px;align-items:flex-start}
.stat__v{font:var(--display-weight,800) clamp(22px,3vw,28px)/1.1 var(--font-display);font-style:var(--display-style,normal);letter-spacing:-.01em;color:var(--accent)}
.stat__k{font-size:14px;color:var(--muted);line-height:1.35}
.stat .badge{margin-top:4px}

/* Fact-status badges */
.badge{display:inline-block;vertical-align:2px;font:700 11px/1 var(--font-body);letter-spacing:.06em;text-transform:uppercase;padding:4px 7px;border-radius:999px;border:1px solid currentColor;white-space:nowrap;margin:0 2px}
.badge--reported{color:var(--tip)}
.badge--estimate{color:var(--warn)}
.badge--calc{color:var(--accent)}
.badge--unconfirmed{color:var(--muted)}
.badge--official{color:#3ccf7a}

/* Timeline */
.timeline{list-style:none;padding:0;margin:18px 0 24px;position:relative}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--border)}
.timeline__item{position:relative;padding:0 0 18px 32px;display:flex;flex-direction:column;gap:2px}
.timeline__item::before{content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--accent)}
.timeline__item.is-past::before{background:var(--accent)}
.timeline__item.is-past{opacity:.72}
.timeline__when{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.timeline__title{font-size:17px}
.timeline__text{color:var(--muted);font-size:15.5px}
.timeline__today::before{background:var(--tip);border-color:var(--tip);box-shadow:0 0 0 5px color-mix(in srgb,var(--tip) 25%,transparent)}
.timeline__today .timeline__when,.timeline__today .timeline__title{color:var(--tip)}

/* Illustrated screen mock (CSS-drawn, not a screenshot) */
.mock{margin:12px 0 4px}
.mock__screen{position:relative;aspect-ratio:16/9;max-width:520px;border-radius:12px;overflow:hidden;background:linear-gradient(160deg,#1b2a7a,#0a1238);border:1px solid var(--border);box-shadow:0 10px 30px -18px rgba(0,0,0,.8);font:600 11px/1.2 var(--font-body);color:#dfe5ff}
.mock figcaption{font-size:13px;color:var(--muted);margin-top:6px}
.mock__bar{position:absolute;left:0;right:0;top:0;height:13%;display:flex;align-items:center;gap:14px;padding:0 4%;background:rgba(0,0,0,.28);text-transform:uppercase;letter-spacing:.06em;font-size:10px;color:#9fb0ff}
.mock__bar b{color:#fff;border-bottom:2px solid var(--accent);padding-bottom:2px}
.mock__grid{position:absolute;left:4%;right:4%;top:19%;bottom:22%;display:grid;grid-template-columns:repeat(5,1fr);gap:4%}
.mock__tile{border-radius:6px;background:linear-gradient(180deg,rgba(255,255,255,.14),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.12)}
.mock__tile:nth-child(3n){background:linear-gradient(180deg,rgba(150,90,255,.45),rgba(150,90,255,.12))}
.mock__tile:nth-child(4n){background:linear-gradient(180deg,rgba(60,170,255,.45),rgba(60,170,255,.12))}
.mock__hot{position:absolute;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 8px;border-radius:8px;background:var(--accent);color:var(--accent-ink);font-weight:800;letter-spacing:.04em;text-transform:uppercase;font-size:10.5px;animation:hot 1.8s ease-out infinite}
.mock__hot--bl{left:4%;bottom:5%;height:12%;min-width:34%}
.mock__hot--c{left:50%;top:50%;transform:translate(-50%,-50%);height:14%;min-width:34%}
.mock__modal{position:absolute;inset:16% 22%;border-radius:10px;background:rgba(8,14,48,.94);border:1px solid rgba(255,255,255,.18);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6%;text-align:center;padding:4%}
.mock__modal p{margin:0;font-size:11px;color:#c9d3ff}
.mock__modal strong{font-size:13px;color:#fff;text-transform:uppercase;letter-spacing:.04em}
.mock__modal .mock__hot{position:static;transform:none;height:auto;padding:7px 14px}
.mock__dim{position:absolute;inset:0;background:rgba(0,0,0,.45)}
@keyframes hot{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 70%,transparent)}70%{box-shadow:0 0 0 12px transparent}100%{box-shadow:0 0 0 0 transparent}}
@media (prefers-reduced-motion:reduce){.mock__hot{animation:none}}
.steps li.has-visual .mock{margin-top:10px}

/* Guide prev / next */
.guide-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:36px 0 8px}
.guide-nav__card{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.guide-nav__card:hover{border-color:var(--accent);transform:translateY(-1px)}
.guide-nav__card--next{text-align:right;align-items:flex-end;grid-column:2}
.guide-nav__dir{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.guide-nav__t{font-weight:700}
@media (max-width:560px){.guide-nav{grid-template-columns:1fr}.guide-nav__card--next{grid-column:1}}

/* Countdown bar + floating CTA */
.topbar{display:block;text-align:center;padding:8px 16px;background:var(--accent);color:var(--accent-ink);font:700 14px/1.35 var(--font-body);text-decoration:none}
.topbar:hover{filter:brightness(1.05)}
.topbar__n{display:inline-block;min-width:1.6em;padding:1px 6px;border-radius:6px;background:var(--accent-ink);color:var(--accent);font-variant-numeric:tabular-nums}
.cta-float{position:fixed;right:18px;bottom:18px;z-index:6;padding:12px 18px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font:800 15px/1 var(--font-body);text-decoration:none;box-shadow:0 10px 24px -10px rgba(0,0,0,.6)}
.cta-float:hover{filter:brightness(1.06)}
@media (max-width:560px){.cta-float{left:50%;right:auto;transform:translateX(-50%);bottom:14px}.site-foot{padding-bottom:84px}}