:root{--bg:#f6f8fb;--card:#fff;--ink:#16202c;--muted:#566272;--line:#dfe5ec;--ok:#1b7f4b;--warn:#8f5500;--bad:#b3261e;--radius:14px}
body{--brand:var(--b,#1f5fbf);--brand-d:var(--bd,#174a96);--tint:var(--bt,#eef4fd)}
*{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}}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
.wrap{max-width:760px;margin:0 auto;padding:16px 16px 40px}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:var(--brand);padding:10px 14px;z-index:10;border-radius:0 0 8px 0}
.skip:focus{left:0}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:6px 0 10px;border-bottom:1px solid var(--line);margin-bottom:8px}
.topbar a.brand{font-weight:700;color:var(--ink);text-decoration:none}
.topbar nav a{margin-left:14px;font-size:.92rem;display:inline-block;padding:10px 0}
.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--brand)}
h1{font-size:1.7rem;line-height:1.2;margin:.3em 0 .4em}
h2{font-size:1.25rem;margin:0 0 .4em;line-height:1.25}
h3{margin:1em 0 .2em;font-size:1.05rem}
p{margin:.5em 0}a{color:var(--brand)}
ul,ol{padding-left:1.3em}li{margin:.25em 0}
.lead{color:var(--muted);font-size:1.03rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;margin-top:16px;box-shadow:0 1px 2px rgba(20,30,50,.04)}
.btn{display:inline-block;font:inherit;font-weight:600;border:0;border-radius:10px;padding:12px 18px;min-height:48px;cursor:pointer;text-decoration:none;text-align:center}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-d)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid #c5d0de}.btn-ghost:hover{background:#f0f4fa}
.btn-sm{min-height:44px;padding:9px 14px;font-size:.92rem}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid #5b8fe0;outline-offset:2px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.form-row{margin:14px 0}
label.lbl{display:block;font-weight:600;margin-bottom:4px}
input[type=text],input[type=email],input[type=url],input[type=date],input[type=number],select,textarea{width:100%;font:inherit;padding:11px 12px;min-height:48px;border:1.5px solid #8a97a8;border-radius:10px;background:#fff;color:var(--ink)}
textarea{resize:vertical;min-height:96px}
input[type=color]{width:56px;height:48px;padding:2px;border:1.5px solid #8a97a8;border-radius:10px;background:#fff}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.grid2{grid-template-columns:1fr}}
.small{font-size:.88rem;color:var(--muted)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.hidden{display:none!important}
.seg{display:flex;gap:0;border:1.5px solid #8a97a8;border-radius:10px;overflow:hidden;background:#fff}
.seg label{flex:1;text-align:center;padding:12px 6px;min-height:48px;cursor:pointer;font-weight:600;font-size:.95rem;border-left:1px solid #c5d0de;display:grid;place-items:center}
.seg label:first-child{border-left:0}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg label:has(input:checked){background:var(--brand);color:#fff}
.seg label:has(input:focus-visible){outline:3px solid #5b8fe0;outline-offset:-3px}
.msg{padding:14px;border-radius:10px;background:#eaf6ef;border:1px solid #bfe2cd}
.note{padding:12px 14px;border-radius:10px;background:#fff4e0;border:1px solid #f0d6a6;color:#5c3900;font-size:.93rem}
.note.bad{background:#fdeceb;border-color:#f3c3c0;color:#7a1710}
.note.good{background:#eaf6ef;border-color:#bfe2cd;color:#14502f}
.out{border:1px solid var(--line);border-radius:12px;padding:14px;margin-top:12px;background:#fcfdff}
.out pre{white-space:pre-wrap;word-wrap:break-word;font:inherit;margin:8px 0;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px}
.count{font-size:.88rem;font-weight:600}
.count.ok{color:var(--ok)}.count.warn{color:var(--warn)}.count.bad{color:var(--bad)}
.ph{background:#fff1b8;border-radius:4px;padding:0 2px}
.plan{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-top:10px;background:var(--tint)}
.plan h3{margin:0 0 2px}.plan .price{font-weight:700;margin:0 0 4px}
.guides{list-style:none;padding:0}.guides li{border-top:1px solid var(--line);padding:12px 0}.guides li:first-child{border-top:0}
.guides a{font-weight:650}
code{overflow-wrap:anywhere}
details.faq{border-top:1px solid var(--line);padding:10px 0}details.faq:first-of-type{border-top:0}
details.faq summary{cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center}
footer{margin-top:28px;color:var(--muted);font-size:.88rem}
footer p{margin:.4em 0}
footer .tools{display:flex;flex-wrap:wrap;gap:4px 16px;padding:0;list-style:none;margin:6px 0}
footer .tools a{display:inline-block;padding:8px 0}
.crumbs{font-size:.88rem;color:var(--muted);margin:10px 0 0}
article h2{margin-top:1.4em}
article table{border-collapse:collapse;width:100%;font-size:.95rem;display:block;overflow-x:auto}
article th,article td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
article th{background:var(--tint)}