:root{
  --bg:#F6F7F9;--surface:#fff;--ink:#0F1B2D;--muted:#46546A;--line:#D5DBE4;
  --accent:#1D4ED8;--accent-ink:#fff;--mark:#FFE066;--mark-ink:#0F1B2D;--focus:#1D4ED8;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --step--1:.875rem;--step-0:1.0625rem;--step-1:1.375rem;--step-2:clamp(1.6rem,1.2rem + 1.6vw,2.2rem);--step-3:clamp(2.1rem,1.3rem + 3.4vw,3.5rem);
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0E141C;--surface:#151D28;--ink:#E8EDF3;--muted:#A9B5C6;--line:#2A3646;--accent:#8BAEFF;--accent-ink:#0E141C;--focus:#8BAEFF}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:6rem}
body{margin:0;background:var(--bg);color:var(--ink);font:var(--step-0)/1.6 var(--font)}
.wrap{width:min(1120px,100% - 2.5rem);margin-inline:auto}
a{color:var(--accent);text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--bg);padding:.75rem 1rem;z-index:30}
.skip:focus{left:0}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0 0 .6em}
h1{font-size:var(--step-3);font-weight:800}
h2{font-size:var(--step-2);font-weight:750}
h3{font-size:var(--step-1);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em;max-width:62ch}
.muted{color:var(--muted)}
header.site{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:1rem}
.logo{font-weight:800;letter-spacing:-.02em;font-size:1.25rem;color:var(--ink);text-decoration:none}
.logo span{background:linear-gradient(transparent 62%,var(--mark) 62%);color:var(--ink);padding:0 .1em}
@media (prefers-color-scheme:dark){.logo span{color:var(--ink);background:linear-gradient(transparent 62%,rgba(255,224,102,.35) 62%)}}
nav{display:flex;flex-wrap:wrap;gap:.25rem 1.1rem;justify-content:flex-end}nav a{color:var(--ink);font-size:var(--step--1);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.7rem 1.25rem;border-radius:8px;border:2px solid var(--accent);background:var(--accent);color:var(--accent-ink);font:inherit;font-weight:700;text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--accent)}
.btn[aria-disabled=true]{opacity:.6;cursor:not-allowed;filter:none}
.hero{padding-block:clamp(2.5rem,6vw,5rem)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(2rem,5vw,4rem);align-items:center}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}}
.lede{font-size:1.2rem;color:var(--muted);max-width:46ch}
.cta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}
.fine{font-size:var(--step--1);color:var(--muted);margin-top:1rem}
.soon{border:2px dashed var(--line);border-radius:8px;padding:.9rem 1.1rem;max-width:46ch;margin-top:1.5rem;background:var(--surface)}
.sheet{background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:0 1px 0 var(--line),0 18px 40px -24px rgba(15,27,45,.35);overflow:hidden}
.sheet-head{display:flex;justify-content:space-between;gap:1rem;padding:.7rem 1rem;border-bottom:1px solid var(--line);font-size:var(--step--1);color:var(--muted)}
.sheet-body{padding:1rem 1rem 1.1rem}
.sheet h2{font-size:1.15rem;margin-bottom:.2rem;letter-spacing:-.01em}
.sheet p{font-size:var(--step--1);max-width:none}
.tablewrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.84rem;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:.45rem .5rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:650;color:var(--muted);white-space:nowrap}
.id{font-family:var(--mono);font-size:.8rem}
mark{background:var(--mark);color:var(--mark-ink);padding:.05em .3em;border-radius:3px;font-weight:650}
section.block{padding-block:clamp(2.5rem,5vw,4rem);border-top:1px solid var(--line)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:clamp(1.5rem,5vw,4rem)}
@media (max-width:860px){.two{grid-template-columns:1fr}}
ol.steps{list-style:none;margin:0;padding:0;counter-reset:s}
ol.steps li{counter-increment:s;display:grid;grid-template-columns:2.5rem 1fr;gap:.25rem 1rem;padding:1rem 0;border-bottom:1px solid var(--line)}
ol.steps li::before{content:counter(s);font-weight:800;font-size:1.6rem;line-height:1;color:var(--accent)}
ol.steps strong{display:block}
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1.25rem}
@media (max-width:640px){.plans{grid-template-columns:1fr}}
.plan{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:1.25rem}
.plan .price{font-size:2.4rem;font-weight:800;letter-spacing:-.03em;line-height:1.1;margin:.3rem 0}
.plan ul{padding-left:1.1rem;margin:.5rem 0 1.1rem;color:var(--muted)}
details{border-bottom:1px solid var(--line);padding:.9rem 0;max-width:70ch}
summary{cursor:pointer;font-weight:650}
summary:focus-visible{outline-offset:6px}
details p{margin:.6rem 0 0}
footer{border-top:1px solid var(--line);padding-block:2rem;font-size:var(--step--1);color:var(--muted)}
footer .wrap{display:grid;gap:.5rem}
footer a{color:var(--ink)}
.todo{background:#FFD6D6;color:#5B0000;padding:0 .3em;border-radius:3px}
/* forms */
form{max-width:640px}
label{display:block;font-weight:650;margin:1.25rem 0 .35rem}
textarea{width:100%;min-height:14rem;padding:.8rem;border:2px solid var(--muted);border-radius:8px;background:var(--surface);color:var(--ink);font:1rem/1.5 var(--mono)}
.hint{font-size:var(--step--1);color:var(--muted);max-width:62ch}
.status{margin-top:1rem;padding:.8rem 1rem;border-radius:8px;border:2px solid var(--line);background:var(--surface)}
.status[hidden]{display:none}
.status.error{border-color:#B42318}
.status.ok{border-color:#067647}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.legal h2{font-size:1.3rem;margin-top:2rem}
.legal p,.legal li{max-width:70ch}
/* guides */
.guide .prose{max-width:70ch}
.guide .prose h2{font-size:1.45rem;margin-top:2.2rem}
.guide .prose p,.guide .prose li{max-width:70ch}
.guide .prose ul,.guide .prose ol{padding-left:1.3rem;margin:0 0 1em}
.guide .prose li{margin:.3rem 0}
.guide .meta,.guide-list .meta{font-size:var(--step--1);color:var(--muted)}
.crumbs{font-size:var(--step--1);color:var(--muted);margin-bottom:1rem;justify-content:flex-start;gap:.25rem .5rem}.crumbs a{font-weight:500;color:var(--muted)}
.guide h1{font-size:var(--step-2);max-width:24ch}
.guide .prose table{font-size:.9rem}
.note{border-left:4px solid var(--accent);background:var(--surface);padding:.2rem 1.1rem;margin:1.5rem 0;border-radius:0 8px 8px 0}
.guide-list{list-style:none;padding:0;margin:2rem 0 0;display:grid;gap:1.5rem;max-width:70ch}
.guide-list h2{font-size:1.3rem;margin:0 0 .3rem}
.guide-list p{margin:0 0 .3rem}
caption{text-align:left;font-weight:650;padding-bottom:.4rem}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{header.site{position:static}header.site nav,.cta,.skip{display:none}}