/* 16-manual-book.css — v1.19.218: the user manual as a full page book (js/src/87-r217-manual.js) */
.ov.r19-man{align-items:stretch;justify-content:stretch;padding:0;background:radial-gradient(ellipse at 50% 30%,#34322f 0%,#161514 85%);flex-direction:column;
  --pp:#f3ecdc;--pp2:#e9e0cb;--pt:#2a2620;--pm:#7b705a;--pl:rgba(60,48,28,.2);--pa:#3b342a;}
html.light .ov.r19-man{background:radial-gradient(ellipse at 50% 30%,#cfc8b8 0%,#9a927f 90%);}
.ov.r19-man.on{display:flex;}

/* top bar */
.r19-bar{display:flex;align-items:center;gap:8px;padding:10px 14px 10px 150px;background:rgba(0,0,0,.35);color:#eee;flex:0 0 auto;flex-wrap:wrap;}
/* keep clear of the version pill (.net-bar): it sits top-left, or top-right when the app is left-to-right */
html[dir=ltr] .r19-bar{padding:10px 150px 10px 14px;}
html.light .r19-bar{background:rgba(255,255,255,.55);color:#2b2720;}
.r19-bar .r19-ttl{font-weight:800;font-size:15px;flex:1 1 140px;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.r19-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(128,128,128,.35);background:rgba(128,128,128,.14);color:inherit;border-radius:10px;padding:7px 11px;cursor:pointer;font:inherit;font-size:13px;}
.r19-btn:hover{background:rgba(128,128,128,.28);}
.r19-btn:disabled{opacity:.35;cursor:default;}
.r19-btn svg,.r19-ico svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;}
.r19-sr{position:relative;flex:1 1 200px;max-width:340px;}
.r19-sr input{width:100%;box-sizing:border-box;border-radius:10px;border:1px solid rgba(128,128,128,.4);background:rgba(128,128,128,.14);color:inherit;padding:8px 12px;font:inherit;font-size:13px;}
.r19-res{position:absolute;top:100%;inset-inline:0;margin-top:4px;background:var(--pp);color:var(--pt);border:1px solid var(--pl);border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.45);max-height:50vh;overflow:auto;z-index:5;display:none;}
.r19-res a{display:block;padding:9px 12px;cursor:pointer;font-size:13px;border-bottom:1px solid var(--pl);}
.r19-res a:hover{background:var(--pp2);}
.r19-res small{color:var(--pm);display:block;}

/* the book */
.r19-stage{flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center;padding:14px 16px;}
.r19-book{position:relative;width:min(1180px,100%);height:min(100%,780px);display:flex;user-select:none;-webkit-user-select:none;}
.r19-book img{-webkit-user-drag:none;}
.r19-book.one{width:min(560px,100%);}
.r19-slot{position:relative;flex:1 1 50%;min-width:0;height:100%;}
.r19-book.one .r19-slot{flex-basis:100%;}
.r19-book::before{content:"";position:absolute;inset:-4px -6px -8px;border-radius:6px;background:linear-gradient(#e4dcc7,#cfc5a9);box-shadow:0 26px 60px rgba(0,0,0,.55),inset 0 -3px 0 rgba(0,0,0,.12);z-index:0;}
.r19-book.one::before{inset:-3px -4px -7px;}
.r19-slot{z-index:1;}

.r19-page{position:absolute;inset:0;background:var(--pp);color:var(--pt);overflow:hidden;}
.r19-page.paper::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:2;mix-blend-mode:multiply;opacity:.55;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' seed='4'/><feColorMatrix values='0 0 0 0 .45  0 0 0 0 .36  0 0 0 0 .2  0 0 0 .5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>"),
  radial-gradient(ellipse at 50% 45%,transparent 55%,rgba(90,70,35,.16) 100%);}
.r19-slot.a .r19-page{border-radius:10px 2px 2px 10px;}
.r19-slot.b .r19-page{border-radius:2px 10px 10px 2px;}
[dir=rtl] .r19-slot.a .r19-page{border-radius:2px 10px 10px 2px;}
[dir=rtl] .r19-slot.b .r19-page{border-radius:10px 2px 2px 10px;}
.r19-book.one .r19-slot .r19-page{border-radius:10px;}
/* the spine shade */
.r19-slot.a .r19-page::after,.r19-slot.b .r19-page::after{content:"";position:absolute;top:0;bottom:0;width:46px;pointer-events:none;z-index:3;}
.r19-slot.a .r19-page::after{inset-inline-end:0;background:linear-gradient(to left,rgba(0,0,0,.28),transparent);}
.r19-slot.b .r19-page::after{inset-inline-start:0;background:linear-gradient(to right,rgba(0,0,0,.28),transparent);}
[dir=rtl] .r19-slot.a .r19-page::after{background:linear-gradient(to right,rgba(0,0,0,.28),transparent);}
[dir=rtl] .r19-slot.b .r19-page::after{background:linear-gradient(to left,rgba(0,0,0,.28),transparent);}
.r19-book.one .r19-page::after{display:none;}

.r19-scroll{position:absolute;inset:0;overflow-y:auto;padding:26px 30px 44px;box-sizing:border-box;scrollbar-width:thin;}
.r19-slot.a .r19-scroll{padding-inline-end:40px;}
.r19-slot.b .r19-scroll{padding-inline-start:40px;}
.r19-book.one .r19-scroll{padding:22px 22px 44px;}
.r19-pn{position:absolute;bottom:12px;inset-inline:0;text-align:center;font-size:11px;color:var(--pm);pointer-events:none;z-index:4;}

/* the turning leaf: a real fold. Front part stays flat, the lifted part shows the next page mirrored over it */
.r19-fold{position:absolute;top:0;bottom:0;z-index:6;pointer-events:none;overflow:visible;}
.r19-fold .r19-slot{position:absolute;inset:0;}
.r19-ush,.r19-ff,.r19-bw,.r19-bsh{position:absolute;inset:0;}
.r19-ush{overflow:hidden;pointer-events:none;}
.r19-bw{filter:drop-shadow(0 3px 12px rgba(0,0,0,.32));}
.r19-bf{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform,clip-path;}
.r19-bsh{overflow:hidden;pointer-events:none;}
.r19-g{position:absolute;left:0;top:0;transform-origin:0 0;pointer-events:none;background:linear-gradient(to right,rgba(25,15,0,.42),rgba(25,15,0,.12) 45%,transparent);}
.r19-gb{background:linear-gradient(to right,rgba(40,25,5,.3),rgba(255,255,255,.24) 18%,rgba(255,255,255,0) 52%,rgba(40,25,5,.12));}
.r19-blank{position:absolute;inset:0;background:var(--pp2);}
.r19-stage{touch-action:pan-y;cursor:grab;}
.r19-stage:active{cursor:grabbing;}

/* bottom bar */
.r19-foot{display:flex;align-items:center;justify-content:center;gap:14px;padding:10px 14px 14px;color:#ddd;flex:0 0 auto;}
html.light .r19-foot{color:#2b2720;}
.r19-foot .r19-cnt{min-width:120px;text-align:center;font-size:13px;opacity:.85;}
.r19-foot input[type=range]{width:min(320px,34vw);accent-color:#8a7f69;}

/* page content */
.r19-pg h1{font-size:25px;line-height:1.25;margin:4px 0 10px;color:var(--pa);font-weight:800;}
.r19-pg h2{font-size:19px;line-height:1.3;margin:2px 0 8px;color:var(--pa);font-weight:800;}
.r19-pg h3{font-size:14.5px;margin:14px 0 4px;font-weight:800;}
.r19-pg p{line-height:1.85;margin:0 0 9px;font-size:14px;}
.r19-pg .r19-eyebrow{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--pm);margin-bottom:2px;}
.r19-chead{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.r19-chead .r19-ico{width:48px;height:48px;border-radius:14px;border:1.5px solid var(--pa);display:grid;place-items:center;color:var(--pa);flex:0 0 auto;}
.r19-chead .r19-ico svg{width:28px;height:28px;stroke-width:1.6;}
.r19-fig{margin:10px 0 12px;}
.r19-fig img,.r19-fig svg{display:block;width:100%;height:auto;border-radius:8px;border:1px solid var(--pl);box-shadow:0 4px 14px rgba(0,0,0,.25);background:#111;}
.r19-fig figcaption{font-size:11px;color:var(--pm);margin-top:5px;text-align:center;}
.r19-steps{list-style:none;margin:0 0 6px;padding:0;counter-reset:s;}
.r19-steps li{position:relative;counter-increment:s;padding-inline-start:36px;margin-bottom:10px;line-height:1.8;font-size:14px;min-height:26px;}
.r19-steps li::before{content:counter(s);position:absolute;inset-inline-start:0;top:1px;width:25px;height:25px;border-radius:50%;background:var(--pa);color:#f3ecdc;font-weight:800;font-size:12px;display:grid;place-items:center;}
.r19-tip{margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--pp2);border-inline-start:3px solid var(--pa);}
.r19-tip b{display:flex;align-items:center;gap:6px;font-size:12.5px;margin-bottom:4px;color:var(--pa);}
.r19-tip b svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.r19-tip div{font-size:13px;line-height:1.8;margin-bottom:3px;}
.r19-open{margin-top:14px;}
.r19-open .r19-btn{background:var(--pa);color:#f3ecdc;border-color:transparent;font-weight:700;}
.r19-toc a{display:flex;align-items:center;gap:10px;padding:8px 6px;border-bottom:1px dashed var(--pl);cursor:pointer;font-size:13.5px;}
.r19-toc a:hover{background:var(--pp2);}
.r19-toc a .r19-ico svg{width:20px;height:20px;color:var(--pa);}
.r19-toc a em{margin-inline-start:auto;font-style:normal;color:var(--pm);font-size:12px;}
.r19-cover{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:100%;gap:10px;}
.r19-cover .r19-seal{width:112px;height:112px;border-radius:50%;border:2px solid var(--pa);display:grid;place-items:center;color:var(--pa);}
.r19-cover .r19-seal svg{width:60px;height:60px;stroke:currentColor;fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;}
.r19-cover .r19-rule{width:90px;height:2px;background:var(--pa);margin:6px auto;}
.r19-cover small{color:var(--pm);line-height:1.8;max-width:300px;}

[dir=rtl] .r19-flip svg{transform:scaleX(-1);}
.r19-bar .r19-btn[disabled]{opacity:.35;}
@media (max-width:899px){
  .r19-bar .r19-ttl{flex-basis:100%;}
  .r19-stage{padding:10px 10px;}
  .r19-pg h1{font-size:22px;}
}
@media print{
  .r19-bar,.r19-foot{display:none;}
}

/* close button: red glowing X, first in the bar = right corner in Arabic, left corner in other languages */
.r19-bar .ov-bar-x{flex:0 0 auto;}
.r19-pg h3+p{margin-top:0;}