/* Visibility Zone — shared stylesheet for sub-pages */
:root{
  --ink:#0b1220; --muted:#525f6d; --mutedlt:#76828f;
  --accent:#17b877; --accent2:#0a7cff; --accent3:#a855f7;
  --glass:rgba(255,255,255,.52); --glass-strong:rgba(255,255,255,.74);
  --glass-line:rgba(255,255,255,.75); --hair:rgba(11,18,32,.08);
  --radius:28px; --ease:cubic-bezier(.22,.68,.24,1);
  --shadow-card:0 1px 0 rgba(255,255,255,.9) inset,0 2px 6px rgba(11,30,60,.05),0 24px 60px -18px rgba(11,30,60,.22);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Inter","Segoe UI",sans-serif;
  color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  position:relative;overflow-x:hidden;background:#eef3fb}
::selection{background:rgba(10,124,255,.16)}
.bgfx{position:fixed;inset:-22vmax;z-index:-2;pointer-events:none;
  background:
    radial-gradient(42vmax 42vmax at 12% 8%,rgba(23,184,119,.34),transparent 62%),
    radial-gradient(44vmax 44vmax at 88% 4%,rgba(10,124,255,.32),transparent 62%),
    radial-gradient(48vmax 48vmax at 78% 92%,rgba(168,85,247,.24),transparent 64%),
    radial-gradient(42vmax 42vmax at 8% 96%,rgba(255,179,64,.2),transparent 62%),
    linear-gradient(180deg,#e9f0fb,#eef3fb);
  filter:saturate(115%);animation:vzdrift 46s var(--ease) infinite alternate}
@keyframes vzdrift{0%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(1.5vmax,-1vmax,0) scale(1.03)}100%{transform:translate3d(-1.5vmax,1vmax,0) scale(1.015)}}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(rgba(11,18,32,.02) 1px,transparent 1px);background-size:4px 4px}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--accent2);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 clamp(20px,5vw,56px)}
.wrap-narrow{max-width:860px;margin:0 auto;padding:0 clamp(20px,5vw,56px)}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}
.glass{background:var(--glass);backdrop-filter:blur(30px) saturate(170%);-webkit-backdrop-filter:blur(30px) saturate(170%);
  border:1px solid var(--glass-line);box-shadow:var(--shadow-card)}

/* NAV */
nav{position:sticky;top:14px;z-index:80;margin:14px auto 0;max-width:1200px;padding:0 clamp(14px,4vw,24px)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:18px;padding:0 12px 0 20px;
  border-radius:22px;background:var(--glass-strong);backdrop-filter:blur(26px) saturate(180%);-webkit-backdrop-filter:blur(26px) saturate(180%);
  border:1px solid var(--glass-line);box-shadow:0 1px 0 rgba(255,255,255,.95) inset,0 18px 48px -14px rgba(11,30,60,.28)}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:-.02em;font-size:1.06rem}
.logo{width:29px;height:29px;border-radius:9px;position:relative;flex:none;
  background:linear-gradient(135deg,var(--accent),var(--accent2) 70%,var(--accent3));
  box-shadow:0 4px 14px rgba(10,124,255,.42),0 1px 0 rgba(255,255,255,.6) inset}
.logo::after{content:"";position:absolute;inset:7px;border-radius:5px;background:rgba(255,255,255,.94)}
.nav-links{display:flex;gap:6px;font-size:.9rem;color:var(--muted);font-weight:500}
.nav-links a{padding:8px 13px;border-radius:12px;transition:color .2s,background .2s}
.nav-links a:hover{color:var(--ink);background:rgba(255,255,255,.62)}
.nav-links a.on{color:var(--ink);background:rgba(255,255,255,.7)}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;font-weight:600;padding:12px 22px;font-size:.92rem;
  cursor:pointer;border:1px solid transparent;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s;white-space:nowrap}
.btn:active{transform:translateY(0) scale(.985)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.45) inset,0 -6px 14px rgba(0,20,60,.14) inset,0 10px 26px -6px rgba(10,124,255,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,.5) inset,0 16px 36px -8px rgba(10,124,255,.58)}
.btn-glass{background:var(--glass);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);
  border-color:var(--glass-line);color:var(--ink);box-shadow:0 1px 0 rgba(255,255,255,.85) inset,0 10px 26px -8px rgba(11,30,60,.22)}
.btn-glass:hover{transform:translateY(-2px);background:var(--glass-strong)}
@media(max-width:940px){.nav-links{display:none}}

/* PAGE HEADER */
.page-head{padding:clamp(46px,7vw,84px) 0 clamp(26px,4vw,44px)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  background:linear-gradient(100deg,var(--accent2),var(--accent3));-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow::before{content:"";height:1px;width:26px;flex:none;background:linear-gradient(90deg,transparent,rgba(10,124,255,.55))}
.page-head h1{font-size:clamp(2.1rem,5vw,3.4rem);letter-spacing:-.03em;line-height:1.06;font-weight:800;margin-top:16px}
.page-head h1 .grad{background:linear-gradient(110deg,var(--accent),var(--accent2) 55%,var(--accent3));-webkit-background-clip:text;background-clip:text;color:transparent}
.page-head .sub{color:var(--muted);font-size:clamp(1rem,2vw,1.16rem);line-height:1.66;margin-top:18px;max-width:680px}
.updated{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:.8rem;font-weight:600;color:var(--muted);
  background:var(--glass-strong);border:1px solid var(--glass-line);border-radius:999px;padding:7px 15px}
.updated::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none}

/* PROSE — legal & docs */
.prose{border-radius:var(--radius);padding:clamp(28px,4.5vw,54px);margin-bottom:clamp(40px,6vw,70px)}
.prose h2{font-size:clamp(1.3rem,2.6vw,1.65rem);font-weight:750;letter-spacing:-.02em;margin:44px 0 14px;padding-top:26px;
  border-top:1px solid var(--hair);line-height:1.25}
.prose h2:first-child{margin-top:0;padding-top:0;border-top:none}
.prose h3{font-size:1.04rem;font-weight:700;letter-spacing:-.01em;margin:26px 0 10px}
.prose p{color:#3f4c59;font-size:.97rem;line-height:1.75;margin-bottom:14px}
.prose ul,.prose ol{margin:0 0 16px 22px;color:#3f4c59;font-size:.97rem;line-height:1.75}
.prose li{margin-bottom:8px}
.prose li::marker{color:var(--accent2)}
.prose a{color:#0a63cc;font-weight:600;border-bottom:1px solid rgba(10,99,204,.28)}
.prose a:hover{border-bottom-color:#0a63cc}
.prose strong{font-weight:700;color:var(--ink)}
.prose code{font-family:var(--mono);font-size:.86em;background:rgba(11,18,32,.06);border:1px solid var(--hair);
  border-radius:6px;padding:1.5px 6px;color:#0a4f8f}
.prose table{width:100%;border-collapse:collapse;margin:18px 0 22px;font-size:.9rem}
.prose thead th{text-align:left;font-weight:700;color:var(--ink);padding:11px 14px;border-bottom:2px solid var(--hair);
  background:rgba(255,255,255,.45);white-space:nowrap}
.prose tbody td{padding:12px 14px;border-bottom:1px solid var(--hair);color:#3f4c59;vertical-align:top;line-height:1.6}
.prose tbody tr:last-child td{border-bottom:none}
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--hair);margin:18px 0 22px}
.table-scroll table{margin:0}
.callout{border-radius:18px;padding:20px 24px;margin:22px 0;border:1px solid rgba(10,124,255,.22);
  background:linear-gradient(135deg,rgba(10,124,255,.09),rgba(23,184,119,.07))}
.callout p:last-child{margin-bottom:0}
.callout strong{color:#0a4f8f}

/* TOC */
.toc{border-radius:20px;padding:22px 26px;margin-bottom:28px;background:rgba(255,255,255,.52);
  border:1px solid var(--glass-line);box-shadow:0 1px 0 rgba(255,255,255,.85) inset}
.toc h4{font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--mutedlt);margin-bottom:12px}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:32px;font-size:.9rem;line-height:1.9}
.toc a{color:#3f4c59;font-weight:500}
.toc a:hover{color:#0a63cc}
@media(max-width:640px){.toc ol{columns:1}}

/* CARDS / GRID */
.cards{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-bottom:clamp(40px,6vw,70px)}
.cards>*{min-width:0}
.card{border-radius:24px;padding:28px;transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:0 1px 0 rgba(255,255,255,.95) inset,0 30px 70px -20px rgba(11,30,60,.3)}
.card h3{font-size:1.1rem;font-weight:700;letter-spacing:-.015em;margin-bottom:9px}
.card p{color:#47545f;font-size:.93rem;line-height:1.65}
.card .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(160deg,rgba(255,255,255,.85),rgba(255,255,255,.5));border:1px solid var(--glass-line);
  box-shadow:0 1px 0 rgba(255,255,255,.95) inset,0 7px 18px -4px rgba(11,30,60,.2)}
.card .ico svg{width:25px;height:25px}
.card a.more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:.85rem;font-weight:700;color:#0a63cc}
.card a.more:hover{gap:9px}

/* CODE BLOCK (docs) */
.codebox{border-radius:20px;overflow:hidden;margin:18px 0 24px;
  background:linear-gradient(160deg,rgba(16,23,36,.96),rgba(10,16,28,.98));border:1px solid rgba(255,255,255,.14);
  box-shadow:0 30px 70px -24px rgba(11,30,60,.5)}
.codebox-top{display:flex;align-items:center;gap:12px;padding:11px 16px;border-bottom:1px solid rgba(255,255,255,.08);
  font-size:.74rem;font-weight:600;color:#8fa0b3;font-family:var(--mono)}
.codebox-top .dots{display:flex;gap:5px}
.codebox-top .dots i{width:10px;height:10px;border-radius:50%}
.codebox-top .dots i:nth-child(1){background:#ff5f57}.codebox-top .dots i:nth-child(2){background:#febc2e}.codebox-top .dots i:nth-child(3){background:#28c840}
.codebox pre{margin:0;padding:18px 20px;overflow-x:auto;font-family:var(--mono);font-size:.82rem;line-height:1.7;color:#d9e3ee}
.codebox .c{color:#5b6b7d}.codebox .k{color:#7dd3fc}.codebox .s{color:#8ce99a}
.codebox .n{color:#ffd479}.codebox .p{color:#c792ea;font-weight:700}
.method{display:inline-block;font-family:var(--mono);font-size:.7rem;font-weight:800;letter-spacing:.05em;
  padding:4px 9px;border-radius:7px;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));margin-right:9px}

/* FOOTER */
footer{margin-top:clamp(50px,8vw,86px);padding:clamp(46px,6vw,68px) 0 40px;
  border-top:1px solid rgba(255,255,255,.6);background:linear-gradient(180deg,rgba(255,255,255,.32),rgba(255,255,255,.05))}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:clamp(24px,4vw,44px);margin-bottom:40px}
.foot-grid>*{min-width:0}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot-brand .fbrand{font-weight:700;color:var(--ink);font-size:1.06rem;display:inline-flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand p{color:var(--muted);font-size:.86rem;line-height:1.7;max-width:290px}
.foot-addr{margin-top:16px;font-size:.8rem;color:var(--mutedlt);line-height:1.75;font-style:normal}
.foot-addr a{color:var(--muted);font-weight:600}
.foot-addr a:hover{color:#0a63cc}
.foot-col h5{font-size:.72rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--ink);margin-bottom:14px}
.foot-col a{display:block;color:var(--muted);font-size:.88rem;line-height:1.5;padding:6px 0;transition:color .2s}
.foot-col a:hover{color:#0a63cc}
.foot-bottom{border-top:1px solid var(--hair);padding-top:24px;display:flex;justify-content:space-between;
  align-items:center;gap:18px;flex-wrap:wrap;font-size:.8rem;color:var(--mutedlt)}
.foot-bottom .legal-line{font-weight:500}
.foot-social{display:flex;gap:8px}
.foot-social a{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--glass-line);transition:transform .2s var(--ease),background .2s}
.foot-social a:hover{transform:translateY(-2px);background:var(--glass-strong)}
.foot-social svg{width:16px;height:16px;fill:var(--muted)}
.foot-social a:hover svg{fill:var(--ink)}

/* COOKIE BANNER */
.cookiebar{position:fixed;left:50%;bottom:18px;transform:translateX(-50%) translateY(140%);z-index:200;
  width:min(720px,calc(100vw - 32px));border-radius:20px;padding:18px 22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  background:var(--glass-strong);backdrop-filter:blur(30px) saturate(180%);-webkit-backdrop-filter:blur(30px) saturate(180%);
  border:1px solid var(--glass-line);box-shadow:0 1px 0 rgba(255,255,255,.95) inset,0 30px 80px -18px rgba(11,30,60,.4);
  transition:transform .5s var(--ease)}
.cookiebar.show{transform:translateX(-50%) translateY(0)}
.cookiebar p{font-size:.85rem;color:#3f4c59;line-height:1.6;flex:1;min-width:230px;margin:0}
.cookiebar p a{color:#0a63cc;font-weight:600;text-decoration:underline}
.cookiebar .cb-actions{display:flex;gap:9px;flex-wrap:wrap}
.cookiebar .btn{padding:10px 18px;font-size:.85rem}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .bgfx{animation:none}
  .btn,.card,.foot-social a,.cookiebar{transition:none}
}