:root{
  --ink:#0b1220;--ink-2:#111a2e;--ink-3:#1a2540;--line-d:#24314f;
  --txt:#16203a;--muted:#55607a;--line:#e3e8f1;--bg:#ffffff;--tint:#f5f7fb;
  --blue:#1f66d6;--blue-l:#5aa9ff;--green:#1fae74;--green-l:#3ddc97;--amber:#e3a008;--violet:#8b7cf6;
  --r:14px;--sh:0 1px 2px rgba(11,18,32,.06),0 8px 24px -12px rgba(11,18,32,.18);
  --font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --pad:max(20px,calc((100% - 1120px)/2));
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font:16px/1.65 var(--font);color:var(--txt);background:var(--bg);overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--blue)}a:hover{color:#1853b0}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;color:var(--ink);margin:0 0 .5em}
h2{font-size:clamp(1.55rem,2.6vw,2.1rem)}h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:800px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:100}.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--blue-l);outline-offset:2px}
.ico{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line-d)}
.hdr-in{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:1.08rem;letter-spacing:-.01em}
.brand svg{width:32px;height:32px}.brand b{color:var(--blue-l);font-weight:700}
.brand:hover{color:#fff}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav>a{color:#c9d3e6;text-decoration:none;font-size:.93rem;font-weight:500;padding:8px 10px;border-radius:8px}
.nav>a:hover,.nav>a[aria-current]{color:#fff;background:rgba(255,255,255,.07)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:10px}
.lnk{color:#c9d3e6;text-decoration:none;font-size:.93rem;font-weight:500}.lnk:hover{color:#fff}
.nav-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line-d);color:#fff;border-radius:8px;padding:7px;cursor:pointer}
@media (max-width:980px){
  .nav-btn{display:inline-flex}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;gap:2px;background:var(--ink);padding:12px 20px 20px;border-bottom:1px solid var(--line-d)}
  .nav.open{display:flex}
  .nav>a{padding:12px 10px;font-size:1rem}
  .nav-cta{margin:10px 0 0;justify-content:space-between}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--blue);color:#fff;text-decoration:none;font-weight:600;padding:12px 20px;border-radius:10px;border:1px solid transparent;font-size:.98rem;line-height:1.2;cursor:pointer;font-family:inherit}
.btn:hover{background:#1853b0;color:#fff}
.btn-sm{padding:8px 14px;font-size:.9rem}.btn-lg{padding:15px 26px;font-size:1.05rem}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.08)}
.content .btn-ghost{border-color:var(--line);color:var(--ink)}.content .btn-ghost:hover{background:var(--tint);color:var(--ink)}

/* hero */
.hero{background:radial-gradient(900px 420px at 85% -10%,rgba(90,169,255,.22),transparent 60%),radial-gradient(600px 300px at 0% 110%,rgba(61,220,151,.10),transparent 60%),var(--ink);color:#d6deee;padding:64px 0 72px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(#000,transparent 85%);pointer-events:none}
.hero-in{position:relative;display:grid;gap:48px;align-items:center}
.hero-split .hero-in{grid-template-columns:1.05fr .95fr}
.hero-copy{max-width:760px}
.hero h1{color:#fff;font-size:clamp(2rem,4.6vw,3.3rem);letter-spacing:-.035em;margin-bottom:.4em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--blue-l),var(--green-l));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:clamp(1.05rem,1.6vw,1.2rem);color:#b8c4da;max-width:680px}
.eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:10px;text-transform:uppercase;letter-spacing:.12em;font-size:.76rem;font-weight:700;color:var(--blue-l);margin-bottom:14px}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.byline{font-size:.9rem;color:#93a0ba;margin:0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0 0 18px;font-size:.85rem;color:#93a0ba}
.crumbs li+li::before{content:"/";margin-right:6px;opacity:.6}
.crumbs a{color:#b8c4da;text-decoration:none}.crumbs a:hover{color:#fff}
.chip{display:inline-flex;align-items:center;gap:7px;text-transform:none;letter-spacing:0;font-size:.8rem;font-weight:600;padding:4px 11px;border-radius:999px;border:1px solid}
.chip i{width:7px;height:7px;border-radius:50%;background:currentColor}
.chip-ok{color:var(--green-l);border-color:rgba(61,220,151,.4);background:rgba(61,220,151,.08)}
.chip-warn{color:#f5c451;border-color:rgba(245,196,81,.4);background:rgba(245,196,81,.08)}
.chip-plan{color:#b4aaff;border-color:rgba(180,170,255,.4);background:rgba(180,170,255,.08)}
@media (max-width:900px){.hero-split .hero-in{grid-template-columns:1fr}.hero{padding:44px 0 52px}}

/* flow illustration */
.flow{margin:0;background:var(--ink-2);border:1px solid var(--line-d);border-radius:18px;padding:18px;box-shadow:0 30px 60px -30px rgba(0,0,0,.7);display:grid;gap:10px}
.fl-row{background:var(--ink-3);border:1px solid var(--line-d);border-radius:12px;padding:12px 14px;position:relative}
.fl-row+.fl-row::before{content:"";position:absolute;left:26px;top:-11px;height:10px;border-left:2px dashed #3a4a6e}
.fl-row p{margin:6px 0 2px;color:#e6ecf7;font-size:.94rem;line-height:1.45}.fl-row small{color:#8d9ab4;font-size:.8rem}
.fl-row code{display:block;margin-top:8px;font:12.5px/1.6 var(--mono);color:#9fe7c4;white-space:normal;word-break:break-all}
.fl-tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue-l)}
.fl-tag-ai{color:#b4aaff}.fl-tag-ps{color:#f5c451}.fl-tag-ok{color:var(--green-l)}
.flow figcaption{font-size:.78rem;color:#8d9ab4;text-align:center}

/* content sections */
.content>.sec,.sec{padding:72px var(--pad)}
.sec>.wrap{padding:0}
.sec-tint{background:var(--tint)}
.sec-dark{background:var(--ink);color:#c9d3e6}.sec-dark h2,.sec-dark h3{color:#fff}
.sec-head{max-width:760px;margin-bottom:34px}.sec-head p{color:var(--muted);font-size:1.07rem}
.sec-dark .sec-head p{color:#a9b5cc}
.kicker{display:block;text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;font-weight:700;color:var(--blue);margin-bottom:10px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}.content>.sec,.sec{padding:52px 20px}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh)}
.card h3{display:flex;align-items:center;gap:10px}
.card p{color:var(--muted);margin:0}.card p+p{margin-top:.6em}
.card .ico{color:var(--blue);width:24px;height:24px}
.sec-dark .card{background:var(--ink-2);border-color:var(--line-d);box-shadow:none}.sec-dark .card p{color:#a9b5cc}.sec-dark .card .ico{color:var(--blue-l)}
.card-link{text-decoration:none;color:inherit;display:block;transition:transform .15s,box-shadow .15s}
.card-link:hover{transform:translateY(-2px);box-shadow:0 14px 34px -16px rgba(11,18,32,.35);color:inherit}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--blue);font-weight:600;font-size:.93rem}
.card .more .ico{width:16px;height:16px}
.tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:3px 9px;border-radius:999px;margin-bottom:12px}
.tag-live{background:#e3f7ee;color:#0f7a4f}.tag-test{background:#fff4d6;color:#8a5a00}.tag-plan{background:#eeebff;color:#5443c9}

/* steps */
.steps{counter-reset:s;display:grid;gap:16px;list-style:none;padding:0;margin:0}
.steps>li{counter-increment:s;position:relative;padding:20px 22px 20px 74px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.steps>li::before{content:counter(s);position:absolute;left:20px;top:18px;width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--green-l);display:grid;place-items:center;font-weight:700}
.steps h3{margin-bottom:.3em}.steps p{margin:0;color:var(--muted)}

/* lists, tables, callouts */
.ticks{list-style:none;padding:0;margin:0 0 1em;display:grid;gap:10px}
.ticks li{position:relative;padding-left:30px}
.ticks li::before{content:"";position:absolute;left:2px;top:.35em;width:18px;height:18px;border-radius:50%;background:#e3f7ee url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f7a4f' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/12px no-repeat}
.ticks.no li::before{background:#fde8e8 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23b42318' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M7 7l10 10M17 7L7 17'/%3E%3C/svg%3E") center/11px no-repeat}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--tint);font-weight:600;color:var(--ink);white-space:nowrap}
tr:last-child td{border-bottom:0}
.note{border-left:4px solid var(--amber);background:#fffaf0;padding:16px 18px;border-radius:0 10px 10px 0;margin:0 0 1em}
.note p:last-child{margin:0}
.note-info{border-color:var(--blue);background:#f2f7ff}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:28px}}
code{font-family:var(--mono);font-size:.9em;background:var(--tint);padding:.1em .35em;border-radius:5px}
pre{background:var(--ink);color:#d6deee;padding:18px 20px;border-radius:12px;overflow-x:auto;font:13.5px/1.6 var(--mono);margin:0 0 1.2em}
pre code{background:none;padding:0;color:inherit}

/* article */
.article>.sec{padding-top:48px;padding-bottom:24px;padding-inline:max(20px,calc((100% - 760px)/2))}
.article>.sec:last-child{padding-bottom:64px}
.article h2{font-size:1.6rem;margin-top:.4em}.article h3{margin-top:1.4em}
.article p,.article li{font-size:1.06rem}
.article ul,.article ol{padding-left:1.3em;margin:0 0 1.1em}.article li{margin-bottom:.4em}
.toc{background:var(--tint);border-radius:12px;padding:18px 22px;margin-bottom:8px}
.toc h2{font-size:1rem;margin:0 0 .4em}.toc ol{margin:0}

/* faq */
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;font-weight:600;padding:14px 32px 14px 0;list-style:none;position:relative;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font-size:1.4rem;color:var(--blue);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:0 0 16px}

/* related, band, posts */
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.rel{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-decoration:none;color:var(--ink);font-weight:600}
.rel:hover{border-color:var(--blue);color:var(--blue)}.rel .ico{width:18px;height:18px;color:var(--blue)}
.band{background:linear-gradient(120deg,#123067,#0b1220 60%);color:#c9d3e6;padding:56px 0}
.band-in{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.band h2{color:#fff;margin-bottom:.3em}.band p{margin:0;max-width:640px}
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.post{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;text-decoration:none;color:inherit;box-shadow:var(--sh)}
.post:hover{border-color:var(--blue);color:inherit}
.post h3{margin-bottom:.4em}.post p{color:var(--muted);font-size:.95rem;flex:1}.post .rt{font-size:.85rem;color:var(--muted)}

/* form */
.form{display:grid;gap:16px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--sh)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:620px){.form .row{grid-template-columns:1fr}.form{padding:20px}}
.form label{display:grid;gap:6px;font-weight:600;font-size:.93rem;color:var(--ink)}
.form label small{font-weight:400;color:var(--muted)}
.form input,.form select,.form textarea{font:inherit;font-size:16px;padding:11px 13px;border:1px solid #cdd5e3;border-radius:10px;background:#fff;color:var(--txt);width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,124,246,.18)}
.form .chk{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.9rem;color:var(--muted)}
.form .chk input{width:18px;height:18px;margin-top:3px;flex:none}
.hp{position:absolute!important;left:-9999px!important;height:0;overflow:hidden}
.form-msg{padding:12px 14px;border-radius:10px;font-size:.95rem}
.form-msg.err{background:#fde8e8;color:#8f1d14}

/* footer */
.ftr{background:#070c17;color:#93a0ba;padding:56px 0 28px;font-size:.93rem}
.ftr-top{display:grid;grid-template-columns:1.1fr 2fr;gap:40px}
.ftr-brand p{margin:14px 0 0;max-width:340px}
.ftr a{color:#c9d3e6;text-decoration:none}.ftr a:hover{color:#fff}
.ftr-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ftr h2{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:#fff;margin-bottom:12px}
.ftr ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.ftr-legal{border-top:1px solid #1a2540;margin-top:40px;padding-top:20px;font-size:.84rem}
@media (max-width:860px){.ftr-top{grid-template-columns:1fr}.ftr-cols{grid-template-columns:repeat(2,1fr)}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.gloss{margin:0 0 1.5em}.gloss dt{font-weight:700;color:var(--ink);margin-top:14px;scroll-margin-top:80px}.gloss dd{margin:4px 0 0;color:var(--muted)}
.article h2 .tag,.content h2 .tag{vertical-align:middle;margin:0 0 0 8px;font-size:.68rem}
.steps h3 .tag{margin:0 0 0 8px;vertical-align:middle}
.sec-dark .btn-ghost{color:#fff;border-color:rgba(255,255,255,.3)}.sec-dark .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff}
.fl-row code{background:none;padding:0}
.hero h1,h2{font-weight:800}
.nav>a.nav-free{color:#3ddc97}.nav>a.nav-free:hover,.nav>a.nav-free[aria-current]{color:#6ff0b7;background:rgba(61,220,151,.1)}
@media (min-width:981px) and (max-width:1120px){.nav>a{padding:8px 7px;font-size:.88rem}.nav-cta .lnk{display:none}}
.sec-dark .kicker,.sec-dark a:not(.btn){color:var(--blue-l)}