/* SITCO "Tower" shared layer: tokens, base, header, footer, devices, app window, diagrams.
   Every page links this file and shared/tower.js. Page-specific CSS stays inline in the page. */
/* ======================= Tokens ======================= */
:root{
  --head:72px;
  --ease:cubic-bezier(.16,1,.3,1);
  --gut:clamp(16px,4.6vw,72px);
  --max:1440px;
  --lime:#A6D96A;--violet:#7A16D6;--ink:#0B0A0F;--night:#12052A;
  --ar:"IBM Plex Sans Arabic",system-ui,sans-serif;
  --disp:"Big Shoulders Display",Impact,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
}
/* Dark "Obsidian": violet hero, black canvas, lime as the one hot mark */
:root,[data-theme=dark]{
  color-scheme:dark;
  --bg:#08070B;--bg2:#0E0D13;--raised:#15131B;--raised2:#1C1A23;
  --line:#25222D;--line2:#3A3642;
  --text:#F4F3F6;--muted:#ABA6B5;--dim:#6F6A7A;
  --mark:#A6D96A;--mark-tx:#B8EC78;
  --hero:#7A16D6;--hero-tx:#FFFFFF;--hero-mu:#EBDDFB;--giant:#9443EF;
  --cta-bg:#A6D96A;--cta-tx:#0B0A0F;--cta-hover:#FFFFFF;
  --paper:#ECEBEF;--paper-tx:#0B0A0F;--paper-mu:#4C4855;
  --band:#A6D96A;--band-tx:#0B0A0F;
  --ok:#8ED36B;--bad:#FF6B5B;--warn:#F2C14E;
  --shadow:0 30px 80px rgb(0 0 0 / .55);
}
/* Light "Porcelain": quiet, corporate. Ink type, white panels, violet only as the accent */
[data-theme=light]{
  color-scheme:light;
  --bg:#F5F4F7;--bg2:#FFFFFF;--raised:#FFFFFF;--raised2:#F7F6F9;
  --line:#E4E1E9;--line2:#CDC8D5;
  --text:#0B0A0F;--muted:#55505E;--dim:#8B8695;
  --mark:#6B19C4;--mark-tx:#6B19C4;
  --hero:#EEECF2;--hero-tx:#0B0A0F;--hero-mu:#4C4855;--giant:#E1DCE9;
  --cta-bg:#0B0A0F;--cta-tx:#FFFFFF;--cta-hover:#6B19C4;
  --paper:#FFFFFF;--paper-tx:#0B0A0F;--paper-mu:#55505E;
  --band:#12052A;--band-tx:#FFFFFF;
  --ok:#1F8A4C;--bad:#C4321F;--warn:#A86A00;
  --shadow:0 30px 70px rgb(30 20 50 / .16);
}

/* ======================= Base ======================= */
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-padding-top:var(--head);overflow-x:clip}
body{background:var(--bg);color:var(--text);font:400 16px/1.6 Geist,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:clip;transition:background-color .4s}
img,video,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--mark);outline-offset:3px;border-radius:4px}
[lang=ar] body,[lang=ar] button{font-family:var(--ar)}
[lang=ar] *{letter-spacing:0!important}
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.disp{font-family:var(--disp);font-weight:800;text-transform:uppercase;letter-spacing:-.005em;line-height:.88}
[lang=ar] .disp{font-family:var(--ar);font-weight:700;text-transform:none;line-height:1.18}
.num{font-variant-numeric:tabular-nums}
.ltr{direction:ltr;unicode-bidi:isolate}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;white-space:nowrap;transition:transform .3s var(--ease),background-color .3s,color .3s,box-shadow .3s}
.btn svg{width:18px;height:18px;flex:none;transition:transform .45s var(--ease)}
.btn:hover svg{transform:translateX(5px)}
[dir=rtl] .btn svg{transform:scaleX(-1)}
[dir=rtl] .btn:hover svg{transform:scaleX(-1) translateX(5px)}
.btn:active{transform:scale(.97)}
.btn-p{background:var(--cta-bg);color:var(--cta-tx)}
.btn-p:hover{background:var(--cta-hover);color:var(--cta-tx)}
[data-theme=dark] .btn-p:hover{color:var(--ink)}
.btn-o{box-shadow:inset 0 0 0 1.5px var(--line2)}
.btn-o:hover{box-shadow:inset 0 0 0 1.5px var(--text)}
.tlink{display:inline-flex;align-items:center;gap:8px;font-weight:600;text-decoration:none;border-bottom:1.5px solid currentColor;padding-bottom:3px}
.tlink svg{width:16px;height:16px}
[dir=rtl] .tlink svg{transform:scaleX(-1)}

/* reveal: visible without JS; motion hides it only once the script runs */
.motion [data-r]{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform 1s var(--ease);transition-delay:calc(var(--d,0) * 80ms)}
.motion [data-r].in{opacity:1;transform:none}
.motion .mask{display:block;overflow:hidden;padding-bottom:.06em}
.motion .mask>span{display:block;transform:translateY(105%);transition:transform 1.1s var(--ease);transition-delay:calc(var(--d,0) * 90ms)}
.motion .in .mask>span,.motion .mask.in>span,.motion .on-load .mask>span{transform:none}

/* section head: two-tone h2 on the start side, descriptor on the end side */
.sh{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:24px 64px;align-items:end;margin-bottom:clamp(40px,6vw,80px)}
.sh h2{font-size:clamp(2.6rem,5.6vw,5.8rem)}
.sh h2 em{font-style:normal;color:var(--dim)}
.sh p{color:var(--muted);font-size:1.05rem;max-width:42ch}
@media (max-width:860px){.sh{grid-template-columns:1fr}}
.sec{padding-block:clamp(88px,11vw,168px)}

/* ======================= Header ======================= */
.hdr{position:fixed;inset:0 0 auto;z-index:50;height:var(--head);transition:background-color .35s,box-shadow .35s,color .35s;color:var(--hero-tx)}
.hdr.scrolled{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line);color:var(--text)}
.hdr .wrap{height:100%;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--disp);font-weight:800;font-size:24px;letter-spacing:.02em}
.logo img{width:34px;height:34px}
.nav{display:flex;gap:22px;margin-inline-start:auto;font-size:14px;font-weight:500}
.nav a{text-decoration:none;opacity:.78;transition:opacity .2s;position:relative;padding-block:6px}
.nav a:hover,.nav a[aria-current=page]{opacity:1}
.nav a[aria-current=page]::after{content:"";position:absolute;inset:auto 0 0;height:2px;background:var(--mark)}
.ctl{display:flex;align-items:center;gap:6px}
.ib{width:44px;height:44px;border-radius:999px;display:grid;place-items:center;font-weight:600;font-size:14px;transition:background-color .2s}
.ib:hover{background:color-mix(in srgb,currentColor 12%,transparent)}
.ib svg{width:19px;height:19px}
.ib .moon{display:none}
[data-theme=light] .ib .sun{display:none}
[data-theme=light] .ib .moon{display:block}
.hdr .btn{min-height:44px;padding:0 20px;font-size:14px}
.menu-b{display:none}
@media (max-width:1240px){.nav{display:none}.ctl{margin-inline-start:auto}.menu-b{display:grid}}
@media (max-width:560px){.hdr .btn{display:none}}
.drawer{position:fixed;inset:var(--head) 0 0;z-index:49;background:var(--bg);padding:32px var(--gut);display:grid;align-content:start;gap:4px;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .3s,transform .4s var(--ease),visibility .3s}
.drawer.open{opacity:1;transform:none;visibility:visible}
.drawer a{font-family:var(--disp);font-weight:800;text-transform:uppercase;font-size:2.6rem;line-height:1.15;text-decoration:none;border-bottom:1px solid var(--line);padding-block:10px}
[lang=ar] .drawer a{font-family:var(--ar);font-weight:600;font-size:1.8rem}
.drawer .btn{margin-top:24px;font-size:16px}

/* ======================= Devices (MacBook + iPhone mockups) ======================= */
.mac{position:relative;width:100%}
.mac-lid{position:relative;background:#0c0c0f;border-radius:16px 16px 4px 4px;padding:2.1% 2.1% 2.8%;box-shadow:inset 0 0 0 1.5px #2b2b31,var(--shadow);transform-origin:50% 100%;transform:rotateX(calc((1 - var(--lid,1)) * -78deg));transition:transform .15s linear}
.mac-lid::before{content:"";position:absolute;top:.9%;left:50%;width:6px;height:6px;margin-left:-3px;border-radius:50%;background:#1d1d22}
.scr{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:4px;background:#000}
.scr video,.scr img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 0;opacity:0;transition:opacity .7s var(--ease)}
.scr .act{opacity:1}
.scr::after{content:"";position:absolute;inset:0;background:#000;opacity:calc((1 - var(--lid,1)) * 1.2);pointer-events:none}
.mac-base{position:relative;height:clamp(10px,1.4vw,16px);margin-inline:-7%;background:linear-gradient(#d9dade,#a3a4a9 70%,#7d7e83);border-radius:2px 2px 16px 16px/2px 2px 12px 12px}
.mac-base::before{content:"";position:absolute;top:0;left:50%;width:15%;height:45%;transform:translateX(-50%);background:#8d8e93;border-radius:0 0 8px 8px}
[data-theme=dark] .mac-base{background:linear-gradient(#56565c,#2f2f34 70%,#1c1c20)}
[data-theme=dark] .mac-base::before{background:#1d1d21}
.phone{position:absolute;bottom:-2%;inset-inline-end:-1%;width:clamp(120px,20%,220px);aspect-ratio:390/844;background:#0c0c0f;border-radius:18%/8.4%;padding:3.6%;box-shadow:inset 0 0 0 1.5px #34343a,var(--shadow);transform:translateY(calc((1 - var(--ph,1)) * 60%));opacity:var(--ph,1);z-index:2}
.phone .scr{aspect-ratio:auto;height:100%;border-radius:14%/6.6%}
.phone .scr::after{display:none}
.phone::before{content:"";position:absolute;top:5%;left:50%;width:30%;height:3.3%;transform:translateX(-50%);background:#000;border-radius:999px;z-index:2}
/* ======================= App window (product fragments) ======================= */
/* the app window */
.app{--a-bg:#0F0E14;--a-side:#0B0A10;--a-card:#17151E;--a-line:#26232F;--a-tx:#EDEBF1;--a-mu:#9B96A6;--a-acc:#A6D96A;--a-acc-tx:#0B0A0F;--a-sel:#221F2B;
  position:relative;border-radius:14px;overflow:hidden;background:var(--a-bg);color:var(--a-tx);box-shadow:0 0 0 1px var(--a-line),var(--shadow);font-size:13px;line-height:1.45}
[data-theme=light] .app{--a-bg:#FFFFFF;--a-side:#F6F5F9;--a-card:#FFFFFF;--a-line:#E6E3EB;--a-tx:#14121A;--a-mu:#6C6776;--a-acc:#6B19C4;--a-acc-tx:#FFFFFF;--a-sel:#F1ECFA}
.app-top{display:flex;align-items:center;gap:12px;height:46px;padding-inline:14px;border-bottom:1px solid var(--a-line)}
.app-top img{width:22px;height:22px}
.app-top b{font-weight:700;font-size:13px}
.crumb{color:var(--a-mu);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb em{font-style:normal;color:var(--a-tx)}
.app-search{margin-inline-start:auto;height:28px;min-width:180px;border-radius:7px;border:1px solid var(--a-line);color:var(--a-mu);display:flex;align-items:center;padding-inline:10px;font-size:12px}
.app-av{width:28px;height:28px;border-radius:50%;background:var(--a-sel);display:grid;place-items:center;font-size:11px;font-weight:700}
.app-b{display:grid;grid-template-columns:168px minmax(0,1fr);height:clamp(420px,50vh,470px)}
.inv-g{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:12px;margin-top:14px;align-items:start}
.app-side{background:var(--a-side);border-inline-end:1px solid var(--a-line);padding:10px 8px;display:grid;align-content:start;gap:2px}
.app-side span{padding:7px 10px;border-radius:6px;color:var(--a-mu);font-size:12.5px;font-weight:500}
.app-side span.on{background:var(--a-sel);color:var(--a-tx)}
.app-main{position:relative;padding:18px 20px;overflow:hidden}
.scene{position:absolute;inset:18px 20px;opacity:0;visibility:hidden;transition:opacity .45s,visibility .45s}
.scene.act{opacity:1;visibility:visible}
.scene h4{font-size:17px;font-weight:600;letter-spacing:-.01em}
.scene .sub{color:var(--a-mu);font-size:12px}
.row{display:flex;align-items:center;gap:10px}
.sp{margin-inline-start:auto}
.chip{display:inline-flex;align-items:center;gap:6px;height:24px;padding-inline:10px;border-radius:999px;font-size:11.5px;font-weight:600;background:var(--a-sel,var(--raised2));color:var(--a-mu,var(--muted));white-space:nowrap}
.chip.ok{background:color-mix(in srgb,var(--ok) 18%,transparent);color:var(--ok)}
.chip.bad{background:color-mix(in srgb,var(--bad) 16%,transparent);color:var(--bad)}
.chip.warn{background:color-mix(in srgb,var(--warn) 18%,transparent);color:var(--warn)}
.abtn{display:inline-flex;align-items:center;height:30px;padding-inline:12px;border-radius:7px;background:var(--a-acc);color:var(--a-acc-tx);font-size:12px;font-weight:600;white-space:nowrap;transition:transform .2s}
.abtn.ghost{background:transparent;color:var(--a-tx);box-shadow:inset 0 0 0 1px var(--a-line)}
.abtn.press{transform:scale(.94)}
.card{background:var(--a-card);border:1px solid var(--a-line);border-radius:10px;padding:12px 14px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;font-size:12.5px}
.kv dt{color:var(--a-mu)}
.kv dd{text-align:end}
.tbl{width:100%;border-collapse:collapse;font-size:12.5px}
.tbl th{color:var(--a-mu);font-weight:500;text-align:start;padding:7px 8px;border-bottom:1px solid var(--a-line);font-size:11.5px}
.tbl td{padding:8px;border-bottom:1px solid var(--a-line)}
.tbl .r{text-align:end}
.hl-bad{box-shadow:inset 0 0 0 1.5px var(--bad);border-radius:6px;background:color-mix(in srgb,var(--bad) 8%,transparent)}
.hl-ok{box-shadow:inset 0 0 0 1.5px var(--ok);border-radius:6px;background:color-mix(in srgb,var(--ok) 8%,transparent)}
.bar-l{height:8px;border-radius:2px;background:var(--a-sel);overflow:hidden}
.bar-l i{display:block;height:100%;background:var(--a-acc);border-radius:2px;transition:width 1.2s var(--ease)}
.bar-l i.bad{background:var(--bad)}
.toast{position:absolute;inset-inline-end:16px;bottom:16px;max-width:300px;padding:12px 14px;border-radius:10px;background:var(--a-card);border:1px solid var(--a-line);box-shadow:0 14px 40px rgb(0 0 0 / .3);font-size:12.5px;display:flex;gap:10px;align-items:flex-start}
.toast svg{width:18px;height:18px;flex:none;color:#25D366}
/* step visibility: data-at = shown from that step, data-until = shown before it */
.app [data-at],.app [data-until]{transition:opacity .45s var(--ease),transform .5s var(--ease)}
.app .hide{opacity:0;transform:translateY(6px);pointer-events:none}
.app .gone{display:none!important}
.qr{width:66px;height:66px;border-radius:4px;background:#fff;padding:5px}
.cursor{position:absolute;z-index:5;width:20px;height:20px;left:0;top:0;transform:translate(var(--cx,60%),var(--cy,60%));transition:transform .9s var(--ease);pointer-events:none;filter:drop-shadow(0 2px 3px rgb(0 0 0 / .4))}
.cursor::after{content:"";position:absolute;left:-10px;top:-10px;width:22px;height:22px;border-radius:50%;border:2px solid var(--a-acc);opacity:0;transform:scale(.4)}
.cursor.click::after{animation:clk .5s ease-out}
@keyframes clk{0%{opacity:1;transform:scale(.4)}100%{opacity:0;transform:scale(1.6)}}
.checks{display:grid;gap:6px;margin-top:10px}
.checks li{display:flex;gap:10px;align-items:center;font-size:12.5px;padding:6px 8px;border-radius:6px}
.checks .ic{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;flex:none;background:var(--a-sel);color:var(--a-mu)}
.checks .ic.ok{background:color-mix(in srgb,var(--ok) 20%,transparent);color:var(--ok)}
.checks .ic.bad{background:color-mix(in srgb,var(--bad) 20%,transparent);color:var(--bad)}
.banner{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:8px;font-weight:600;font-size:12.5px;margin-top:12px}
.banner.bad{background:color-mix(in srgb,var(--bad) 14%,transparent);color:var(--bad)}
.banner.ok{background:color-mix(in srgb,var(--ok) 16%,transparent);color:var(--ok)}
/* caption under the window: problem, system, result */
.cap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin-top:14px;background:var(--line);border-radius:12px;overflow:hidden;box-shadow:0 0 0 1px var(--line)}
.cap div{background:var(--raised);padding:14px 16px;transition:background-color .4s}
.cap small{display:block;font-size:12px;font-weight:600;color:var(--dim)}
.cap p{font-size:14px;line-height:1.45;color:var(--muted);margin-top:4px;transition:color .4s}
.cap div.on{background:var(--raised2)}
.cap div.on small{color:var(--mark-tx)}
.cap div.on p{color:var(--text)}
/* ======================= FAQ ======================= */
.faq{background:var(--bg)}
.faq-l{border-top:1px solid var(--line);max-width:980px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:24px;align-items:center;padding:24px 0;font-size:clamp(1.1rem,1.6vw,1.4rem);font-weight:500}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{width:28px;height:28px;flex:none;position:relative}
.faq summary i::before,.faq summary i::after{content:"";position:absolute;inset:50% 4px auto;height:2px;margin-top:-1px;background:var(--mark);transition:transform .4s var(--ease)}
.faq summary i::after{transform:rotate(90deg)}
.faq details[open] summary i::after{transform:rotate(0)}
.faq details p{color:var(--muted);padding-bottom:26px;max-width:62ch;font-size:1.05rem}

/* ======================= Final band ======================= */
.band{position:relative;background:var(--band);color:var(--band-tx);overflow:hidden;padding-block:clamp(88px,11vw,160px)}
.band-g{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:end;gap:32px;flex-wrap:wrap}
.band h2{font-size:clamp(3rem,7.4vw,8rem);max-width:12ch}
.band p{font-size:clamp(1.2rem,2vw,1.7rem);margin-top:18px;font-weight:500}
.band-a{display:flex;gap:14px;flex-wrap:wrap}
[data-theme=dark] .band .btn-p{background:#0B0A0F;color:#fff}
[data-theme=dark] .band .btn-p:hover{background:#fff;color:#0B0A0F}
[data-theme=light] .band .btn-p{background:#A6D96A;color:#0B0A0F}
[data-theme=light] .band .btn-p:hover{background:#fff}
.band .btn-o{box-shadow:inset 0 0 0 1.5px currentColor}
[data-theme=light] .band::before{content:"";position:absolute;inset:0;background:url(../../../profile/img/bg-riyadh-violet.jpg) center 60%/cover;opacity:.32}

/* ======================= Footer ======================= */
.ftr{background:var(--bg);border-top:1px solid var(--line);padding-top:clamp(64px,8vw,110px);overflow:hidden}
.ftr-g{display:grid;grid-template-columns:minmax(0,4fr) repeat(4,minmax(0,2fr));gap:32px}
.ftr h4{font-size:13px;font-weight:600;color:var(--dim);margin-bottom:14px}
.ftr li a{display:block;text-decoration:none;color:var(--muted);padding:5px 0;font-size:14.5px;transition:color .2s}
.ftr li a:hover{color:var(--text)}
.ftr-b p{color:var(--muted);font-size:14.5px;max-width:34ch;margin-top:16px}
.clock{display:flex;gap:10px;align-items:baseline;margin-top:22px;font-size:14px;color:var(--muted)}
.clock b{font-family:var(--disp);font-size:2rem;font-weight:800;color:var(--text);line-height:1}
.ftr-low{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:56px;padding-block:22px;font-size:13px;color:var(--dim)}
.ftr-word{font-family:var(--disp);font-weight:900;text-transform:uppercase;font-size:27vw;line-height:.74;text-align:center;color:var(--raised2);margin-bottom:-4.2vw;user-select:none;letter-spacing:-.01em}
[data-theme=light] .ftr-word{color:#E9E6EE}
@media (max-width:980px){.ftr-g{grid-template-columns:1fr 1fr}.ftr-b{grid-column:1/-1}}

/* ======================= Sticky mobile bar ======================= */
.sticky{position:fixed;inset:auto 0 0;z-index:45;display:none;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 -1px 0 var(--line);transform:translateY(110%);transition:transform .45s var(--ease)}
.sticky.show{transform:none}
.sticky .btn{min-height:50px}
.sticky .wa{width:56px;padding:0;flex:none}
.sticky .wa svg{width:22px;height:22px;transform:none!important}
.sticky .btn-p{flex:1}
@media (max-width:760px){.sticky{display:flex}.ftr-low{padding-bottom:96px}}


@media (max-width:980px){
  .app-b{grid-template-columns:1fr;height:auto;min-height:420px}
  .app-side{display:none}
  .app-search{display:none}
}

/* ======================= Pages without a full-bleed hero ======================= */
/* header text follows the page colours unless the page sets body[data-hero] (violet/dark hero under the header) */
body:not([data-hero]) .hdr{color:var(--text)}
.page-top{padding-top:var(--head)}
.eyebrow-n{font-family:var(--mono);font-size:12.5px;color:var(--dim);letter-spacing:.04em}

/* ======================= Diagram language (shared by every page) ======================= */
/* 1. ASCII / terminal blocks: only for language-neutral content (numbers, codes, Latin product names, logs) (system mono stack: the web mono font lacks box-drawing glyphs) */
.ascii{font-family:Consolas,"Cascadia Mono",Menlo,"DejaVu Sans Mono",ui-monospace,monospace;font-size:clamp(11px,1.05vw,14px);line-height:1.45;white-space:pre;color:var(--muted);direction:ltr;text-align:left;overflow-x:auto;scrollbar-width:none}
.ascii b{color:var(--mark-tx);font-weight:500}
.ascii i{font-style:normal;color:var(--dim)}
.ascii u{text-decoration:none;color:var(--text)}
.ascii em{font-style:normal;color:var(--bad)}
.term{background:#0B0A0F;color:#CFCAD8;border-radius:14px;box-shadow:0 0 0 1px #24212C,var(--shadow);overflow:hidden}
.term-top{display:flex;align-items:center;gap:10px;height:38px;padding-inline:14px;border-bottom:1px solid #24212C;font:500 12px/1 var(--mono);color:#77727F;direction:ltr}
.term .ascii{padding:16px 18px;color:#B9B3C4}
.term .ascii b{color:#B8EC78}
.term .ascii u{color:#fff}
/* 2. Box diagrams in HTML (any language): .flow > .node, connectors drawn with borders */
.flow{display:flex;align-items:stretch;gap:0;counter-reset:fl}
.flow .node{position:relative;flex:1;min-width:0;border:1px solid var(--line2);border-radius:10px;padding:16px;background:var(--raised)}
.flow .node small{display:block;font-family:var(--mono);font-size:11.5px;color:var(--dim)}
.flow .node b{display:block;font-weight:600;margin-top:4px}
.flow .node span{display:block;font-size:13.5px;color:var(--muted);margin-top:4px;line-height:1.45}
.flow .link{flex:0 0 clamp(18px,3vw,44px);align-self:center;height:1.5px;background:repeating-linear-gradient(90deg,var(--line2) 0 6px,transparent 6px 10px);position:relative}
.flow .link::after{content:"";position:absolute;inset-inline-end:-1px;top:-4px;border:5px solid transparent;border-inline-start-color:var(--line2)}
.flow .node.hot{border-color:var(--mark);box-shadow:0 0 0 1px var(--mark)}
.motion .flow[data-r] .node{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--i,0) * 140ms)}
.motion .flow[data-r] .link{transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease);transition-delay:calc(var(--i,0) * 140ms + 80ms)}
[dir=rtl].motion .flow[data-r] .link,[dir=rtl] .motion .flow[data-r] .link{transform-origin:right}
.motion .flow[data-r].in .node{opacity:1;transform:none}
.motion .flow[data-r].in .link{transform:none}
@media (max-width:760px){.flow{flex-direction:column}.flow .link{flex-basis:22px;width:1.5px;height:auto;align-self:flex-start;margin-inline-start:24px;background:repeating-linear-gradient(180deg,var(--line2) 0 6px,transparent 6px 10px)}.flow .link::after{display:none}}
/* 3. Charts: SVG, drawn with currentColor + tokens. Lines animate on reveal with .draw */
.chart{width:100%;height:auto;overflow:visible}
.chart text{font-family:Geist,var(--ar),sans-serif;font-size:12px;fill:var(--muted)}
.chart .grid line{stroke:var(--line);stroke-width:1}
.chart .ax{stroke:var(--line2)}
.motion .chart .draw{stroke-dasharray:var(--len,1200);stroke-dashoffset:var(--len,1200);transition:stroke-dashoffset 1.8s var(--ease)}
.motion .in .chart .draw,.motion .chart.in .draw{stroke-dashoffset:0}
.motion .chart .grow{transform:scaleY(0);transform-box:fill-box;transform-origin:bottom;transition:transform 1.1s var(--ease);transition-delay:calc(var(--i,0) * 90ms)}
.motion .in .chart .grow,.motion .chart.in .grow{transform:none}
.tip{position:fixed;z-index:60;pointer-events:none;background:var(--text);color:var(--bg);font-size:12.5px;line-height:1.35;padding:7px 10px;border-radius:7px;opacity:0;transition:opacity .15s;max-width:240px}
.tip.on{opacity:1}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* phones: footer links and the logo meet the 44px tap minimum */
.logo{min-height:44px}
@media (max-width:760px){.ftr li a{padding:11px 0}}