/* Cutaway site chrome. Scoped to .cw-* so it never touches your pages, and explicit about
   font, size and spacing so it never inherits them from a page either. Dark only. */
.cw-bar,.cw-foot{--cw-bg:#0b0c0f;--cw-surface:#131519;--cw-border:#24262d;--cw-t1:#f2f2f5;--cw-t2:#c3c5cd;--cw-t3:#8f919c;--cw-acc:#67e8f9;
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:normal;text-transform:none;text-align:left;
  background:var(--cw-bg);color:var(--cw-t2);position:relative;z-index:50;margin:0;padding:0}
.cw-bar *,.cw-foot *{box-sizing:border-box;margin:0;padding:0;font:inherit;letter-spacing:inherit}
.cw-bar{border-bottom:1px solid var(--cw-border)}
.cw-in{max-width:1240px;margin:0 auto;padding:0 16px;display:flex;align-items:center;gap:1.4rem;min-height:56px;flex-wrap:wrap}
.cw-bar a,.cw-foot a{color:var(--cw-t2);text-decoration:none}
.cw-bar a:hover,.cw-foot a:hover{color:var(--cw-t1)}
.cw-bar a:focus-visible,.cw-foot a:focus-visible,.cw-menu summary:focus-visible{outline:2px solid var(--cw-acc);outline-offset:2px;border-radius:4px}
.cw-brand{display:inline-flex;align-items:center;gap:.55rem;color:var(--cw-t1)!important;font-weight:700;font-size:1.02rem}
.cw-mark{width:26px;height:26px;border-radius:7px;background:var(--cw-t1);color:var(--cw-bg);display:grid;place-items:center;
  font:700 .78rem ui-monospace,SFMono-Regular,Menlo,monospace}
.cw-menu{display:none}
.cw-menu summary{list-style:none;cursor:pointer}
.cw-menu summary::-webkit-details-marker{display:none}
.cw-nav{display:flex;gap:1.3rem;font-size:.9rem}
.cw-nav a[aria-current="page"]{color:var(--cw-t1);font-weight:600}
.cw-right{margin-left:auto;display:flex;gap:.5rem;align-items:center}
/* account corner: signed out = Sign in + Create account; signed in (site.js, from /api/me) = My library + initial badge */
.cw-bar .cw-btn{display:inline-flex;align-items:center;min-height:36px;font-size:.84rem;font-weight:600;color:var(--cw-t1);
  border:1px solid #333743;border-radius:8px;padding:.35rem .8rem;white-space:nowrap;background:none;cursor:pointer}
.cw-bar .cw-btn:hover{border-color:var(--cw-acc);color:var(--cw-t1)}
.cw-bar .cw-btn.cw-pri{background:var(--cw-acc);border-color:var(--cw-acc);color:var(--cw-bg)}
.cw-bar .cw-btn.cw-pri:hover{color:var(--cw-bg);filter:brightness(1.08)}
.cw-acct{position:relative}
.cw-acct summary{list-style:none;cursor:pointer}
.cw-acct summary::-webkit-details-marker{display:none}
.cw-av{width:36px;height:36px;border-radius:50%;background:rgba(103,232,249,.08);color:var(--cw-acc);display:grid;place-items:center;
  font-weight:700;font-size:.86rem;border:1px solid var(--cw-border);text-transform:uppercase}
.cw-acct[open] .cw-av,.cw-av:hover{border-color:var(--cw-acc)}
.cw-av:focus-visible{outline:2px solid var(--cw-acc);outline-offset:2px}
.cw-pop{position:absolute;right:0;top:calc(100% + 8px);min-width:230px;background:var(--cw-surface);border:1px solid var(--cw-border);
  border-radius:10px;padding:.4rem;box-shadow:0 12px 30px rgba(0,0,0,.45);z-index:60}
.cw-pop .cw-who{display:block;padding:.5rem .6rem .6rem;font-size:.8rem;color:var(--cw-t3);border-bottom:1px solid var(--cw-border);margin-bottom:.3rem;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}
.cw-pop a,.cw-pop button{display:block;width:100%;text-align:left;padding:.55rem .6rem;border-radius:7px;font-size:.88rem;color:var(--cw-t2);
  background:none;border:0;cursor:pointer}
.cw-pop a:hover,.cw-pop button:hover{background:#181b21;color:var(--cw-t1)}
.cw-foot{border-top:1px solid var(--cw-border);margin-top:3rem}
.cw-foot .cw-in{gap:1.2rem;font-size:.8rem;color:var(--cw-t3);min-height:64px}
.cw-foot a{color:var(--cw-t3)}
@media (max-width:760px){
  .cw-in{gap:.8rem}
  .cw-desk{display:none}
  .cw-menu{display:block;order:3}
  .cw-menu summary{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--cw-border);border-radius:8px}
  .cw-burger,.cw-burger::before,.cw-burger::after{display:block;width:16px;height:2px;background:var(--cw-t2);border-radius:1px;position:relative}
  .cw-burger::before,.cw-burger::after{content:"";position:absolute;left:0}
  .cw-burger::before{top:-5px}.cw-burger::after{top:5px}
  .cw-mob{display:flex;position:absolute;left:0;right:0;top:56px;flex-direction:column;gap:0;background:var(--cw-surface);border-bottom:1px solid var(--cw-border);padding:.4rem 16px .8rem}
  .cw-nav a{padding:.65rem 0;border-bottom:1px solid var(--cw-border);font-size:1rem}
  .cw-nav a:last-child{border-bottom:0}
  .cw-right{margin-left:auto}
}
@media (max-width:420px){.cw-bar .cw-wide{display:none}}
@media (prefers-reduced-motion:reduce){.cw-bar *,.cw-foot *{transition:none!important}}

/* lock markers on links to paid steps (added by site.js inside your pages' own step lists) */
a.cw-locked{opacity:.62}
a.cw-locked:hover{opacity:1}
.cw-lock{width:.85em;height:.85em;margin-left:.4em;vertical-align:-.08em;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* "continue with the full volume" card at the end of each step 1 */
.cw-endcard{--cw-bg:#0b0c0f;--cw-surface:#131519;--cw-border:#333743;--cw-t1:#f2f2f5;--cw-t2:#c3c5cd;--cw-t3:#8f919c;--cw-acc:#67e8f9;
  box-sizing:border-box;max-width:760px;margin:3rem auto 0;padding:0 16px;font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  letter-spacing:normal;text-transform:none;text-align:left;position:relative;z-index:5}
.cw-endcard *{box-sizing:border-box;margin:0;padding:0;font:inherit}
.cw-endcard .cw-card{border:1px solid var(--cw-border);border-radius:14px;background:var(--cw-surface);padding:1.3rem 1.4rem}
.cw-endcard .cw-k{display:flex;align-items:center;gap:.5rem;color:var(--cw-t1);font-weight:600;font-size:1rem}
.cw-endcard .cw-k .cw-lock{margin:0;width:1.05em;height:1.05em}
.cw-endcard .cw-t{color:var(--cw-t2);margin-top:.5rem}
.cw-endcard .cw-row{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1rem;align-items:center}
.cw-endcard a.cw-buy{display:inline-flex;align-items:center;gap:.4rem;border-radius:8px;padding:.6rem 1rem;font-weight:600;
  background:var(--cw-acc);color:#0b0c0f;border:1px solid var(--cw-acc);text-decoration:none}
.cw-endcard a.cw-buy:hover{filter:brightness(1.08)}
.cw-endcard .cw-small a{color:var(--cw-acc);text-decoration:none}
.cw-endcard a.cw-more{display:inline-flex;align-items:center;border-radius:8px;padding:.6rem 1rem;font-weight:600;color:var(--cw-t1);
  border:1px solid var(--cw-border);text-decoration:none}
.cw-endcard a.cw-more:hover{border-color:var(--cw-acc)}
.cw-endcard .cw-small{font-size:.82rem;color:var(--cw-t3);margin-top:.9rem}

/* the buy box on each tutorial volume's page, between your title and your introduction */
.cw-volbox{--cw-surface:#131519;--cw-border:#333743;--cw-t1:#f2f2f5;--cw-t2:#c3c5cd;--cw-t3:#8f919c;--cw-acc:#67e8f9;--cw-green:#34d399;
  box-sizing:border-box;margin:1.6rem 0 2.4rem;font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:normal;
  text-transform:none;text-align:left}
.cw-volbox *{box-sizing:border-box;margin:0;padding:0;font:inherit}
.cw-volbox .cw-card{border:1px solid var(--cw-border);border-radius:14px;background:var(--cw-surface);padding:1.3rem 1.4rem}
.cw-volbox .cw-top{display:flex;gap:1.4rem;flex-wrap:wrap;align-items:flex-start;justify-content:space-between}
.cw-volbox .cw-price{font-size:2rem;font-weight:700;color:var(--cw-t1);letter-spacing:-.02em;line-height:1}
.cw-volbox .cw-price small{font-size:.8rem;font-weight:500;color:var(--cw-t3);letter-spacing:0;margin-left:.35rem}
.cw-volbox ul{list-style:none;margin-top:.9rem;display:grid;gap:.25rem;color:var(--cw-t2);font-size:.92rem}
.cw-volbox li{padding-left:1.35rem;position:relative}
.cw-volbox li::before{content:"✓";position:absolute;left:0;color:var(--cw-green);font-weight:700}
.cw-volbox li a{color:var(--cw-t3);text-decoration:underline}
.cw-volbox .cw-actions{display:flex;flex-direction:column;gap:.5rem;min-width:240px}
.cw-volbox a.cw-buy{display:flex;justify-content:center;align-items:center;border-radius:8px;padding:.65rem 1rem;font-weight:600;
  background:var(--cw-acc);color:#0b0c0f;border:1px solid var(--cw-acc);text-decoration:none}
.cw-volbox a.cw-buy:hover{filter:brightness(1.08)}
.cw-volbox a.cw-read{display:flex;justify-content:center;align-items:center;border-radius:8px;padding:.65rem 1rem;font-weight:600;
  color:var(--cw-t1);border:1px solid var(--cw-border);text-decoration:none}
.cw-volbox a.cw-read:hover{border-color:var(--cw-acc)}
.cw-volbox .cw-small{font-size:.82rem;color:var(--cw-t3)}
.cw-volbox .cw-small a{color:var(--cw-acc);text-decoration:none}
.cw-volbox .cw-demo{margin-top:1.1rem}
.cw-volbox .cw-demo .term-replay{margin:.4rem 0 0}
.cw-volbox .cw-label{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cw-t3);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}

.cw-endcard b{font-weight:600;color:var(--cw-t1)}   /* the reset above would otherwise un-bold names */

/* notice shown after being sent back from a paid page */
.cw-notice{font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#1d2a2e;color:#f2f2f5;border-bottom:1px solid rgba(103,232,249,.35);position:relative;z-index:49}
.cw-notice .cw-in{max-width:1240px;margin:0 auto;padding:.6rem 16px;display:flex;align-items:center;gap:1rem;min-height:0}
.cw-notice button{margin-left:auto;background:none;border:0;color:#8f919c;font-size:1.2rem;line-height:1;cursor:pointer;padding:.2rem .4rem}

/* "Read next" at the end of an article */
.cw-endcard .cw-nextgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:.7rem;margin-top:.8rem}
.cw-endcard a.cw-next{display:flex;flex-direction:column;gap:.25rem;border:1px solid var(--cw-border);border-radius:10px;padding:.8rem .9rem;text-decoration:none;color:var(--cw-t2)}
.cw-endcard a.cw-next:hover{border-color:var(--cw-acc)}
.cw-endcard a.cw-next b{color:var(--cw-t1);font-weight:600}
.cw-endcard .cw-tag{font:500 .66rem ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--cw-acc)}

/* shown instead of a Buy button to visitors outside the countries we sell to (site.js, from /api/me) */
.cw-notus{display:block;border:1px solid rgba(251,191,36,.45);background:rgba(251,191,36,.07);border-radius:8px;padding:.6rem .8rem;
  font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#c3c5cd;text-align:left}
.cw-notus b{display:block;color:#fbbf24;font-weight:600}

/* "You own this" in place of a Buy button (site.js, from /api/me) */
.cw-own{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:.3rem .8rem;font:600 13px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:#34d399;border:1px solid rgba(52,211,153,.5);background:rgba(52,211,153,.08);align-self:flex-start}
.cw-volbox .cw-own{align-self:center}
.cw-notice a{color:#67e8f9;text-decoration:underline}

/* lab download: button in an owner's volume box, and the first-download confirmation */
.cw-volbox button.cw-dl{display:flex;justify-content:center;align-items:center;border-radius:8px;padding:.65rem 1rem;font-weight:600;
  color:var(--cw-t1);border:1px solid var(--cw-border);background:none;cursor:pointer;width:100%}
.cw-volbox button.cw-dl:hover{border-color:var(--cw-acc)}
.cw-dialog-back{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.6);display:grid;place-items:center;padding:16px}
.cw-dialog{box-sizing:border-box;max-width:460px;width:100%;background:#131519;border:1px solid #333743;border-radius:14px;padding:1.4rem;
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#c3c5cd;text-align:left;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.cw-dialog p{margin:.6rem 0}
.cw-dlg-t{font-size:1.15rem;font-weight:600;color:#f2f2f5}
.cw-dlg-small{font-size:.84rem;color:#8f919c}
.cw-dlg-row{display:flex;gap:.5rem;justify-content:flex-end;flex-wrap:wrap;margin-top:1.1rem}
.cw-dlg-row button{font:600 14px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;border-radius:8px;padding:.7rem 1rem;cursor:pointer;min-height:40px}
.cw-dlg-no{background:none;color:#f2f2f5;border:1px solid #333743}
.cw-dlg-yes{background:#67e8f9;color:#0b0c0f;border:1px solid #67e8f9}

/* Stage 1 (only concepts are public; html[data-cw-stage] is set by the server, lib/stage.js): hide what isn't open yet */
html[data-cw-stage="concepts"] .cw-nav a:not([href^="/concepts"]),
html[data-cw-stage="concepts"] [data-cw-account],
html[data-cw-stage="concepts"] .cw-foot a[href="/teams"]{display:none!important}
.cw-endcard .cw-soonnote{display:inline-flex;align-items:center;color:var(--cw-t3);font-weight:600;padding:.6rem .2rem}

/* Share: header button + menu, and the end-of-page card (site.js) */
.cw-shareslot{margin-left:auto;display:flex}
.cw-shareslot[hidden]{display:none}
.cw-shareslot + .cw-right{margin-left:0}
.cw-bar .cw-sharebtn{display:inline-flex;align-items:center;gap:.45rem;min-height:36px;font-size:.84rem;font-weight:600;color:var(--cw-t1);
  background:none;border:1px solid #333743;border-radius:8px;padding:.35rem .8rem;cursor:pointer}
.cw-bar .cw-sharebtn:hover,.cw-bar .cw-sharebtn[aria-expanded="true"]{border-color:var(--cw-acc)}
.cw-ico{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cw-ico.fill{fill:currentColor;stroke:none}
.cw-sharemenu{position:absolute;right:16px;top:calc(100% + 6px);width:250px;background:var(--cw-surface);border:1px solid var(--cw-border);border-radius:12px;
  padding:.4rem;box-shadow:0 14px 34px rgba(0,0,0,.5);z-index:80}
.cw-sharemenu .cw-shd{display:block;padding:.45rem .6rem .6rem;color:var(--cw-t3);font-size:.78rem;border-bottom:1px solid var(--cw-border);margin-bottom:.3rem;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cw-sharemenu button{display:flex;align-items:center;gap:.65rem;width:100%;padding:.6rem;border-radius:8px;color:var(--cw-t2);background:none;border:0;cursor:pointer;
  font-size:.9rem;text-align:left}
.cw-sharemenu button:hover,.cw-sharemenu button:focus-visible{background:#181b21;color:var(--cw-t1)}
.cw-sharemenu .cw-ok{margin-left:auto;color:#34d399;font-size:.78rem;font-weight:600}
.cw-sharecard .cw-row button{display:inline-flex;align-items:center;gap:.45rem;border-radius:8px;padding:.6rem 1rem;font-weight:600;color:var(--cw-t1);
  border:1px solid var(--cw-border);background:none;cursor:pointer}
.cw-sharecard .cw-row button:hover{border-color:var(--cw-acc)}
.cw-sharecard .cw-row .cw-ok{color:#34d399;font-size:.8rem;font-weight:600}
@media (max-width:760px){.cw-shareslot{order:2;margin-left:auto}.cw-shareslot + .cw-right{order:2}}
@media (max-width:420px){.cw-bar .cw-sharebtn span{display:none}.cw-bar .cw-sharebtn{padding:.35rem .6rem}}

/* Headings: one font everywhere, the home page's (Archivo, extra-bold); page titles in capitals (decided 28 Sep 2026).
   !important because each tutorial page sets its own heading font. Body text keeps the system font. */
@font-face{font-family:"Archivo Cutaway";font-weight:900;font-style:normal;font-display:swap;src:url(/assets/fonts/archivo-900.woff2) format("woff2")}
h1,h2,h3,.h1,.h2,.h3,.cw-endcard .cw-k{font-family:"Archivo Cutaway","Arial Black","Helvetica Neue",Arial,sans-serif!important;font-weight:900!important;letter-spacing:-.025em!important}
h1,.h1{text-transform:uppercase!important;letter-spacing:-.01em!important}
/* concept pages: the title sits left of the animation; long capital titles wrap instead of running across it */
@media (min-width:900px){.hero h1{max-width:min(100%,58vw)}}

/* "Related concepts" at the end of a concept (site/build.py related_card) */
.cw-related .cw-rgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem;margin-top:.9rem}
.cw-related a.cw-rc{display:block;border:1px solid var(--cw-border);border-radius:10px;padding:.75rem .9rem;text-decoration:none;background:#0f1115}
.cw-related a.cw-rc:hover,.cw-related a.cw-rc:focus-visible{border-color:var(--cw-acc)}
.cw-related .cw-rn{font:500 .72rem ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--cw-t3)}
.cw-related .cw-rt{display:block;color:var(--cw-t1);font-family:"Archivo Cutaway","Arial Black",sans-serif;font-weight:900;letter-spacing:-.02em;font-size:1rem;margin:.15rem 0 .1rem}
.cw-related .cw-rs{display:block;color:var(--cw-t2);font-size:.86rem;line-height:1.4}
.cw-related a.cw-all{display:inline-block;margin-top:.8rem;font-size:.86rem;color:var(--cw-acc);text-decoration:none}
@media (max-width:560px){.cw-related .cw-rgrid{grid-template-columns:1fr}}