/* ========================================================================
   INVTOVIS — "THE SIGNAL ROOM"
   A monitoring station, not a document. Dark instrument console, dense
   readouts, monospace labels, 3px radius.
   Type: Space Grotesk (display), Instrument Sans (body), JetBrains Mono (data)
   ===================================================================== */

:root{
  --void:#08090C;
  --deck:#0D1015;
  --panel:#12161D;
  --panel-2:#171C25;
  --line:rgba(233,236,242,.09);
  --line-2:rgba(233,236,242,.16);
  --txt:#E9ECF2;
  --txt-2:rgba(233,236,242,.72);
  --txt-3:rgba(233,236,242,.48);
  --txt-4:rgba(233,236,242,.30);
  --amber:#FFB020;         /* accent 1 — the signal */
  --amber-dim:rgba(255,176,32,.14);
  --cyan:#5CC8FF;          /* accent 2 — the reading */
  --cyan-dim:rgba(92,200,255,.13);
  --dead:#FF6B5A;          /* accent 3 — no signal */
  --dead-dim:rgba(255,107,90,.13);
  --disp:"Space Grotesk",ui-sans-serif,system-ui,sans-serif;
  --body:"Instrument Sans",ui-sans-serif,system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --r:3px;
  --wrap:1300px;
  --gut:clamp(20px,4.6vw,60px);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;background:var(--void);color:var(--txt);
  font-family:var(--body);font-size:18px;line-height:1.62;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
/* the console grid — a faint field, not a texture */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.55;
  background-image:linear-gradient(rgba(233,236,242,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(233,236,242,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 110% 78% at 50% 0%,#000 25%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 110% 78% at 50% 0%,#000 25%,transparent 78%);
}
main,header,footer{position:relative;z-index:1}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
button{font:inherit;color:inherit}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:var(--disp);font-weight:500;line-height:1.06;letter-spacing:-.03em;margin:0}
.d1{font-size:clamp(40px,6.6vw,80px);letter-spacing:-.042em;line-height:.99}
.d2{font-size:clamp(30px,4.2vw,50px);letter-spacing:-.034em;line-height:1.04}
.d3{font-size:clamp(23px,2.8vw,32px);letter-spacing:-.028em;line-height:1.14}
.d4{font-size:clamp(19px,2vw,23px);letter-spacing:-.02em;line-height:1.26}
.lead{font-size:clamp(18px,1.95vw,22px);line-height:1.55;color:var(--txt-2)}
p{margin:0 0 1.05em}
.mono{font-family:var(--mono)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.lbl{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--txt-4);display:block;font-weight:500}
.tag{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  font-weight:500;color:var(--amber);display:inline-flex;align-items:center;gap:10px}
.tag::before{content:"";width:6px;height:6px;background:var(--amber);flex:none;
  box-shadow:0 0 0 0 rgba(255,176,32,.55);animation:beat 2.4s infinite}
@keyframes beat{0%{box-shadow:0 0 0 0 rgba(255,176,32,.5)}70%{box-shadow:0 0 0 8px rgba(255,176,32,0)}100%{box-shadow:0 0 0 0 rgba(255,176,32,0)}}
.tag.cy{color:var(--cyan)}.tag.cy::before{background:var(--cyan);animation:none}
@media (prefers-reduced-motion:reduce){.tag::before{animation:none}}

/* ---------- structure ---------- */
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.band{padding-block:clamp(58px,8vw,112px);position:relative}
.band+.band::before{content:"";position:absolute;top:0;left:var(--gut);right:var(--gut);height:1px;
  background:linear-gradient(90deg,transparent,var(--line-2) 12%,var(--line-2) 88%,transparent)}
.band.tight{padding-block:clamp(38px,5vw,64px)}
.band.lit{background:
  radial-gradient(ellipse 80% 60% at 50% 0%,rgba(255,176,32,.055),transparent 62%),var(--deck)}
.band.deck{background:var(--deck)}

/* the section header — signature device: a channel readout bar */
.chan{display:flex;align-items:center;gap:14px;margin-bottom:clamp(22px,3vw,38px);
  padding-bottom:12px;border-bottom:1px solid var(--line)}
.chan .id{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--amber);flex:none}
.chan .nm{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--txt-4)}
.chan .rail{flex:1;height:1px;background:var(--line-2);transform-origin:left;transform:scaleX(0);
  transition:transform 1.1s var(--ease)}
.is-in .chan .rail,.chan.is-in .rail{transform:scaleX(1)}
.chan .st{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--txt-4);flex:none}

/* reveal */
.rv{opacity:0;transform:translateY(14px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.rv.is-in{opacity:1;transform:none}
.rv.d1x{transition-delay:.06s}.rv.d2x{transition-delay:.12s}.rv.d3x{transition-delay:.18s}
.rv.d4x{transition-delay:.24s}.rv.d5x{transition-delay:.3s}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1!important;transform:none!important;transition:none!important}
  .chan .rail{transform:scaleX(1)!important;transition:none!important}}

/* ---------- masthead ---------- */
.mast{position:sticky;top:0;z-index:60;background:rgba(8,9,12,.86);
  backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);
  border-bottom:1px solid var(--line)}
.mast-in{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut);display:flex;align-items:center;
  gap:24px;height:62px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.brand .sq{width:24px;height:24px;border-radius:var(--r);background:var(--amber);flex:none;
  display:grid;place-items:center;position:relative;overflow:hidden}
.brand .sq::after{content:"";width:8px;height:8px;background:var(--void);border-radius:1px}
.brand b{font-family:var(--disp);font-weight:500;font-size:18px;letter-spacing:-.03em}
.brand i{font-style:normal;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--txt-4);display:block;margin-top:1px}
.nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav a{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;
  text-decoration:none;color:var(--txt-3);transition:color .2s;padding:6px 0;position:relative}
.nav a:hover,.nav a[aria-current="page"]{color:var(--amber)}
.nav a[aria-current="page"]::before{content:"";position:absolute;left:-9px;top:50%;width:3px;height:3px;
  background:var(--amber);margin-top:-1.5px}
.burger{display:none;margin-left:auto;width:38px;height:38px;border:1px solid var(--line-2);
  border-radius:var(--r);background:none;cursor:pointer;align-items:center;justify-content:center;padding:0}
.burger span{display:block;width:16px;height:1.5px;background:var(--txt);position:relative;transition:.25s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;
  background:var(--txt);transition:.25s}
.burger span::before{top:-5px}.burger span::after{top:5px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
@media (max-width:1140px){
  .nav{position:fixed;inset:62px 0 auto 0;background:var(--deck);flex-direction:column;
    align-items:stretch;gap:0;padding:6px var(--gut) 22px;border-bottom:1px solid var(--line-2);
    transform:translateY(-10px);opacity:0;pointer-events:none;transition:.26s var(--ease);
    max-height:calc(100vh - 62px);overflow:auto}
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{font-size:14px;padding:15px 0;border-bottom:1px solid var(--line)}
  .nav .btn{margin-top:16px;justify-content:center}
  .burger{display:flex}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;
  letter-spacing:.11em;text-transform:uppercase;font-weight:500;text-decoration:none;
  padding:13px 20px;border:1px solid var(--line-2);border-radius:var(--r);background:none;
  cursor:pointer;transition:.2s var(--ease);line-height:1;position:relative;overflow:hidden}
.btn:hover{border-color:var(--amber);color:var(--amber)}
.btn.solid{background:var(--amber);color:#0B0B0B;border-color:var(--amber);font-weight:600}
.btn.solid:hover{background:#FFC24D;border-color:#FFC24D;color:#0B0B0B;
  box-shadow:0 0 32px rgba(255,176,32,.32)}
.btn.cy{border-color:var(--cyan);color:var(--cyan)}
.btn.cy:hover{background:var(--cyan-dim)}
.btn.sm{padding:9px 13px;font-size:12px}
.cta-row{display:flex;flex-wrap:wrap;gap:11px;align-items:center}

/* ---------- console panels ---------- */
.pane{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.pane-hd{display:flex;align-items:center;gap:11px;padding:12px 16px;background:var(--panel-2);
  border-bottom:1px solid var(--line);flex-wrap:wrap}
.pane-hd .t{font-family:var(--mono);font-size:12px;letter-spacing:.17em;text-transform:uppercase;
  color:var(--txt-2)}
.pane-hd .dot{width:7px;height:7px;border-radius:50%;background:var(--amber);flex:none;
  animation:beat 2.4s infinite}
@media (prefers-reduced-motion:reduce){.pane-hd .dot{animation:none}}
.pane-bd{padding:clamp(16px,2.3vw,26px)}

.grid{display:grid;gap:14px}
.grid>*{min-width:0}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:940px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}}
.split>*{min-width:0}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(26px,4vw,60px);align-items:start}
.split.rev{grid-template-columns:.9fr 1.1fr}
.split.even{grid-template-columns:1fr 1fr}
.split.wide{grid-template-columns:1.35fr .65fr}
.stick{position:sticky;top:94px}
@media (max-width:940px){
  .split,.split.rev,.split.even,.split.wide{grid-template-columns:1fr;gap:32px}
  .stick{position:static;top:auto}
}

/* readout tiles */
.ro{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:20px 18px;
  transition:border-color .3s,background .3s}
.ro:hover{border-color:var(--line-2)}
.ro .v{font-family:var(--mono);font-size:clamp(28px,3.6vw,40px);font-weight:600;line-height:1;
  letter-spacing:-.03em;display:block;color:var(--txt)}
.ro .v.am{color:var(--amber)}.ro .v.cy{color:var(--cyan)}.ro .v.dd{color:var(--dead)}
.ro .l{font-size:14.5px;color:var(--txt-3);margin-top:9px;display:block;line-height:1.42}

/* ---------- the scan console ---------- */
.scan{border:1px solid var(--line-2);border-radius:var(--r);background:var(--panel);overflow:hidden;
  position:relative}
.scan.busy::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--amber),transparent);
  animation:sweep 1.15s linear infinite}
@keyframes sweep{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
@media (prefers-reduced-motion:reduce){.scan.busy::after{animation:none;opacity:.5}}
.field{display:flex;border:1px solid var(--line-2);border-radius:var(--r);background:var(--void);
  overflow:hidden;transition:border-color .2s,box-shadow .2s}
.field:focus-within{border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,176,32,.12)}
.field input{flex:1;min-width:0;border:none;background:none;padding:15px 16px;color:var(--txt);
  font-family:var(--mono);font-size:16px;outline:none;letter-spacing:-.01em}
.field input::placeholder{color:var(--txt-4)}
.field button{border:none;background:var(--amber);color:#0B0B0B;padding:0 24px;font-family:var(--mono);
  font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:600;cursor:pointer;
  transition:background .2s;white-space:nowrap}
.field button:hover{background:#FFC24D}
@media (max-width:540px){
  .field{flex-direction:column}
  .field button{padding:15px}
  .field input{font-size:15px}}
.opts{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px;align-items:center}
.opts select{font-family:var(--mono);font-size:12px;letter-spacing:.07em;text-transform:uppercase;
  border:1px solid var(--line-2);border-radius:var(--r);background:var(--void);padding:8px 28px 8px 11px;
  color:var(--txt-2);cursor:pointer;appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--txt-3) 50%),linear-gradient(135deg,var(--txt-3) 50%,transparent 50%);
  background-position:calc(100% - 14px) 52%,calc(100% - 9px) 52%;background-size:5px 5px;background-repeat:no-repeat}
.tab{font-family:var(--mono);font-size:12px;letter-spacing:.11em;text-transform:uppercase;
  border:1px solid var(--line-2);border-radius:var(--r);background:none;padding:8px 12px;cursor:pointer;
  color:var(--txt-3);transition:.18s}
.tab:hover{border-color:var(--txt-3);color:var(--txt)}
.tab[aria-pressed="true"]{background:var(--amber);color:#0B0B0B;border-color:var(--amber);font-weight:600}

/* channel strip: the four sources */
.chans{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}
@media (max-width:600px){.chans{grid-template-columns:repeat(2,1fr)}}
.ch{border:1px solid var(--line);border-radius:var(--r);background:var(--void);padding:13px 12px;
  transition:.35s}
.ch .n{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--txt-4);display:block;margin-bottom:8px}
.ch .v{font-family:var(--mono);font-size:14px;font-weight:500;color:var(--txt-4)}
.ch .meter{height:2px;background:var(--line-2);margin-top:9px;overflow:hidden;border-radius:2px}
.ch .meter i{display:block;height:100%;width:0;background:var(--txt-4);transition:width .8s var(--ease),background .3s}
.ch.on{border-color:rgba(92,200,255,.36);background:var(--cyan-dim)}
.ch.on .v{color:var(--cyan)}.ch.on .meter i{width:100%;background:var(--cyan)}
.ch.off{border-color:rgba(255,107,90,.3)}
.ch.off .v{color:var(--dead)}.ch.off .meter i{width:12%;background:var(--dead)}
.ch.wait .v{opacity:.5}

/* result blocks */
.blk{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);margin-top:13px;
  animation:rise .4s var(--ease) both}
@keyframes rise{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.blk{animation:none}}
.blk-hd{display:flex;gap:16px;padding:17px;border-bottom:1px solid var(--line);align-items:flex-start;
  flex-wrap:wrap}
.blk-hd .who{flex:1;min-width:190px}
.blk-hd h3{font-size:22px;margin-bottom:4px}
.blk-hd .sub{color:var(--txt-3);font-size:15.5px}
.eid{font-family:var(--mono);font-size:13px;color:var(--amber);word-break:break-all;display:block;
  margin-top:8px}
.gauge2{flex:none;text-align:right}
.gauge2 .v{font-family:var(--mono);font-size:28px;font-weight:600;line-height:1;color:var(--cyan)}
.gauge2 .l{font-family:var(--mono);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--txt-4);display:block;margin-top:5px}
.gauge2 .meter{height:3px;background:var(--line-2);margin-top:8px;width:118px;border-radius:2px;overflow:hidden}
.gauge2 .meter i{display:block;height:100%;background:var(--cyan);width:0;transition:width 1s var(--ease)}
.blk-bd{padding:17px;font-size:16.5px;color:var(--txt-2)}
.blk-ft{display:flex;flex-wrap:wrap;gap:8px;padding:13px 17px;background:var(--panel-2);
  border-top:1px solid var(--line)}

/* ---------- verdict ---------- */
.verd{border:1px solid var(--line-2);border-left:3px solid var(--amber);border-radius:var(--r);
  background:var(--panel-2);padding:20px 22px;margin:1.6em 0}
.verd b{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--amber);display:block;margin-bottom:9px;font-weight:500}
.verd p:last-child{margin-bottom:0}
.verd.cy{border-left-color:var(--cyan)}.verd.cy b{color:var(--cyan)}
.verd.dd{border-left-color:var(--dead)}.verd.dd b{color:var(--dead)}

/* ---------- data table ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);
  -webkit-overflow-scrolling:touch;max-width:100%;min-width:0;position:relative;
  background:linear-gradient(90deg,var(--panel) 30%,rgba(18,22,29,0)),
             linear-gradient(90deg,rgba(18,22,29,0),var(--panel) 70%) 100% 0,
             radial-gradient(farthest-side at 0 50%,rgba(0,0,0,.5),transparent),
             radial-gradient(farthest-side at 100% 50%,rgba(0,0,0,.5),transparent) 100% 0;
  background-repeat:no-repeat;background-size:44px 100%,44px 100%,15px 100%,15px 100%;
  background-attachment:local,local,scroll,scroll}
table.tbl{width:100%;border-collapse:collapse;min-width:700px;font-size:15.5px}
table.tbl th{font-family:var(--mono);font-size:12px;letter-spacing:.15em;text-transform:uppercase;
  text-align:left;padding:13px 15px;background:var(--panel-2);color:var(--txt-4);white-space:nowrap;
  border-bottom:1px solid var(--line);font-weight:500}
table.tbl td{padding:14px 15px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr{transition:background .18s}
table.tbl tbody tr:hover{background:var(--panel-2)}
.badge{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:12px;
  letter-spacing:.1em;text-transform:uppercase;padding:4px 9px;border-radius:2px;white-space:nowrap;
  border:1px solid currentColor;line-height:1.5}
.badge.live{color:var(--cyan);background:var(--cyan-dim)}
.badge.part{color:var(--amber);background:var(--amber-dim)}
.badge::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor;flex:none}

/* ---------- screenshots ---------- */
.cap{display:block;width:100%;padding:0;border:1px solid var(--line-2);border-radius:var(--r);
  overflow:hidden;background:var(--panel);cursor:zoom-in;position:relative;text-align:left}
.cap img{width:100%;display:block;transition:transform .6s var(--ease)}
.cap:hover{border-color:var(--amber)}
.cap:hover img{transform:scale(1.015)}
.cap::after{content:"⤢";position:absolute;right:10px;bottom:10px;font-family:var(--mono);font-size:14px;
  background:var(--amber);color:#0B0B0B;width:28px;height:28px;display:grid;place-items:center;
  border-radius:2px;opacity:0;transition:.25s}
.cap:hover::after{opacity:1}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:300;display:none;place-items:center;padding:18px}
.modal.open{display:grid}
.modal-bg{position:absolute;inset:0;background:rgba(4,5,7,.86);backdrop-filter:blur(6px)}
.modal-in{position:relative;background:var(--deck);border:1px solid var(--line-2);border-radius:var(--r);
  max-width:1020px;width:100%;max-height:88vh;overflow:auto;animation:rise .3s var(--ease) both}
.modal-hd{display:flex;align-items:center;gap:13px;padding:14px 17px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--deck);z-index:2;flex-wrap:wrap}
.modal-hd h3{font-size:20px;flex:1;min-width:130px}
.modal-x{width:32px;height:32px;border:1px solid var(--line-2);border-radius:var(--r);background:none;
  cursor:pointer;display:grid;place-items:center;font-size:16px;flex:none;color:var(--txt-2)}
.modal-x:hover{border-color:var(--dead);color:var(--dead)}
.modal-bd{padding:17px}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,18px);background:var(--amber);
  color:#0B0B0B;font-family:var(--mono);font-size:12px;letter-spacing:.09em;text-transform:uppercase;
  font-weight:600;padding:12px 20px;border-radius:var(--r);z-index:200;opacity:0;pointer-events:none;
  transition:.28s var(--ease);max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- prompt cards (AI simulator) ---------- */
.pc{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:16px;
  display:flex;gap:14px;align-items:flex-start;flex-wrap:wrap;transition:border-color .2s}
.pc:hover{border-color:var(--line-2)}
.pc .q{flex:1;min-width:210px}
.pc .q b{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--txt-4);margin-bottom:7px;font-weight:500}
.pc .q code{font-family:var(--mono);font-size:14px;color:var(--cyan);display:block;line-height:1.5;
  word-break:break-word}
.pc .a{display:flex;gap:6px;flex:none;flex-wrap:wrap}

/* ---------- eligibility ---------- */
.eq{border-bottom:1px solid var(--line);padding:17px 0;display:flex;gap:18px;align-items:flex-start;
  flex-wrap:wrap}
.eq:last-of-type{border-bottom:none}
.eq .t{flex:1;min-width:230px}
.eq .t b{display:block;font-weight:500;font-size:17.5px;margin-bottom:3px;font-family:var(--disp);
  letter-spacing:-.018em}
.eq .t span{font-size:15px;color:var(--txt-3);display:block;line-height:1.5}
.eq .a{display:flex;gap:6px;flex:none}

/* dial */
.dial2{width:158px;height:158px;position:relative;flex:none}
.dial2 svg{transform:rotate(-90deg);display:block}
.dial2 .tr{fill:none;stroke:var(--line-2);stroke-width:8}
.dial2 .vl{fill:none;stroke:var(--amber);stroke-width:8;stroke-linecap:butt;
  transition:stroke-dashoffset 1s var(--ease),stroke .4s}
.dial2 .rd{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.dial2 .rd b{font-family:var(--mono);font-size:40px;font-weight:600;line-height:1;display:block}
.dial2 .rd span{font-family:var(--mono);font-size:12px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--txt-4)}

/* ---------- code output ---------- */
.codebox{background:var(--void);border:1px solid var(--line-2);border-radius:var(--r);padding:16px;
  font-family:var(--mono);font-size:13.5px;line-height:1.62;color:var(--txt-2);overflow-x:auto;
  white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;
  -webkit-overflow-scrolling:touch;max-height:420px;overflow-y:auto;max-width:100%;min-width:0}
.codebox .k{color:var(--cyan)}.codebox .s{color:var(--amber)}

/* ---------- guide layout ---------- */
.gwrap{display:grid;grid-template-columns:248px minmax(0,1fr);gap:clamp(26px,4.5vw,60px);
  max-width:var(--wrap);margin:0 auto;padding:0 var(--gut) clamp(56px,7vw,100px)}
.gwrap>*{min-width:0}
@media (max-width:1020px){.gwrap{grid-template-columns:minmax(0,1fr)}}
.toc{position:sticky;top:86px;align-self:start;max-height:calc(100vh - 118px);overflow:auto;
  border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:16px}
@media (max-width:1020px){
  .toc{position:static;max-height:none;margin-bottom:26px;width:100%;max-width:100%;box-sizing:border-box}
  .toc a{word-break:break-word}
}
.toc b{font-family:var(--mono);font-size:12px;letter-spacing:.17em;text-transform:uppercase;
  color:var(--txt-4);display:block;margin-bottom:11px;font-weight:500}
.toc a{display:block;font-size:14.5px;color:var(--txt-3);text-decoration:none;padding:6px 0 6px 12px;
  line-height:1.35;transition:.2s;border-left:2px solid transparent}
.toc a:hover{color:var(--txt)}
.toc a.on{color:var(--amber);border-left-color:var(--amber)}
.prose{max-width:72ch;font-size:18.5px;color:var(--txt-2);min-width:0}
.prose h2{font-family:var(--disp);font-size:clamp(25px,3vw,34px);margin:2em 0 .5em;color:var(--txt);
  letter-spacing:-.032em;scroll-margin-top:92px}
.prose h2:first-child{margin-top:0}
.prose h3{font-family:var(--disp);font-size:clamp(20px,2.1vw,24px);margin:1.7em 0 .45em;color:var(--txt);
  letter-spacing:-.026em}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.25em;padding-left:1.25em}
.prose li{margin-bottom:.5em}
.prose a{color:var(--amber);text-decoration:underline;text-underline-offset:3px;
  text-decoration-thickness:1px}
.prose a:hover{background:var(--amber-dim)}
.prose strong,.prose b{color:var(--txt);font-weight:600}
.prose code{font-family:var(--mono);font-size:.85em;background:var(--panel-2);padding:2px 6px;
  border-radius:2px;color:var(--cyan)}
.prose blockquote{margin:1.6em 0;padding:2px 0 2px 22px;border-left:2px solid var(--amber);
  color:var(--txt);font-size:20px}
.prose table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:16px}
.prose th{font-family:var(--mono);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
  text-align:left;padding:11px 13px;background:var(--panel-2);color:var(--txt-4);font-weight:500;
  border-bottom:1px solid var(--line)}
.prose td{padding:12px 13px;border-bottom:1px solid var(--line);vertical-align:top}
.tblscroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);
  -webkit-overflow-scrolling:touch;max-width:100%;min-width:0;position:relative;
  background:linear-gradient(90deg,var(--panel) 30%,rgba(18,22,29,0)),
             linear-gradient(90deg,rgba(18,22,29,0),var(--panel) 70%) 100% 0,
             radial-gradient(farthest-side at 0 50%,rgba(0,0,0,.5),transparent),
             radial-gradient(farthest-side at 100% 50%,rgba(0,0,0,.5),transparent) 100% 0;
  background-repeat:no-repeat;background-size:44px 100%,44px 100%,15px 100%,15px 100%;
  background-attachment:local,local,scroll,scroll}
.tblscroll table{min-width:520px;margin:0}

.tldr{border:1px solid var(--line-2);border-radius:var(--r);background:var(--panel);padding:20px 22px;
  margin-bottom:34px}
.tldr b{font-family:var(--mono);font-size:12px;letter-spacing:.17em;text-transform:uppercase;
  display:block;margin-bottom:9px;color:var(--amber);font-weight:500}
.tldr p{margin:0;font-size:18px;line-height:1.55;color:var(--txt)}
.readbar{position:fixed;top:0;left:0;height:2px;background:var(--amber);z-index:70;width:0;
  transition:width .1s linear}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:19px 42px 19px 0;position:relative;font-size:19px;
  font-weight:500;font-family:var(--disp);letter-spacing:-.024em;color:var(--txt);transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--amber)}
.faq summary::after{content:"";position:absolute;right:8px;top:50%;width:11px;height:1.5px;
  background:var(--txt-3);transition:.3s}
.faq summary::before{content:"";position:absolute;right:13px;top:50%;width:1.5px;height:11px;
  background:var(--txt-3);margin-top:-5px;transition:.3s}
.faq details[open] summary::before{transform:rotate(90deg);opacity:0}
.faq details[open] summary{color:var(--amber)}
.faq details[open] summary::after{background:var(--amber)}
.faq .ans{padding:0 0 21px;font-size:17px;color:var(--txt-2);max-width:66ch}
.faq .ans p:last-child{margin-bottom:0}

/* timeline */
.rail{border-left:1px solid var(--line-2);padding-left:0;margin-left:6px}
.rail-i{position:relative;padding:0 0 28px 28px}
.rail-i:last-child{padding-bottom:0}
.rail-i::before{content:"";position:absolute;left:-4px;top:8px;width:7px;height:7px;
  background:var(--amber);border-radius:50%}
.rail-i .m{font-family:var(--mono);font-size:12px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--amber);display:block;margin-bottom:6px}
.rail-i b{display:block;font-family:var(--disp);font-weight:500;font-size:19px;margin-bottom:5px;
  letter-spacing:-.024em;color:var(--txt)}
.rail-i p{font-size:16px;color:var(--txt-3);margin:0}

/* footer */
.foot{background:var(--deck);border-top:1px solid var(--line-2);padding-block:clamp(44px,5.5vw,72px)}
.foot a{color:var(--txt-3);text-decoration:none;transition:color .2s}
.foot a:hover{color:var(--amber)}
.foot-g{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:34px}
@media (max-width:840px){.foot-g{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:520px){.foot-g{grid-template-columns:1fr}}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:9px;font-size:15px}
.foot .base{border-top:1px solid var(--line);margin-top:38px;padding-top:20px;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:12px;
  letter-spacing:.07em;color:var(--txt-4)}

.skip{position:absolute;left:-9999px;top:0;background:var(--amber);color:#0B0B0B;padding:12px 18px;
  z-index:999;font-family:var(--mono);font-size:12px}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}

.mt-s{margin-top:13px}.mt-m{margin-top:24px}.mt-l{margin-top:40px}
.mb0{margin-bottom:0}.mt0{margin-top:0}
.center{text-align:center}.muted{color:var(--txt-3)}
.small{font-size:16px}.xsmall{font-size:15px}
.hide{display:none!important}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0}

/* ================= VIDEO FACADE ================= */
.vid{margin:1.8em 0;border:1px solid var(--line-2);border-radius:var(--r);background:var(--panel);
  overflow:hidden}
.vid-hd{display:flex;align-items:baseline;gap:12px;padding:12px 15px;border-bottom:1px solid var(--line);
  background:var(--panel-2);flex-wrap:wrap}
.vid-hd .k{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--amber);flex:none}
.vid-hd .t{font-family:var(--disp);font-weight:500;font-size:17.5px;flex:1;min-width:170px;
  letter-spacing:-.02em;line-height:1.3;color:var(--txt)}
.vid-hd .d{font-family:var(--mono);font-size:12px;color:var(--txt-4);flex:none}
.vid-fr{position:relative;aspect-ratio:16/9;background:var(--void);overflow:hidden;cursor:pointer;
  display:block;width:100%;padding:0;border:none}
.vid-fr img{width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .6s var(--ease),opacity .3s}
.vid-fr:hover img{transform:scale(1.03);opacity:.8}
.vid-fr iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vid-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:70px;height:70px;
  background:var(--amber);border-radius:50%;display:grid;place-items:center;pointer-events:none;
  transition:.28s var(--ease);box-shadow:0 0 44px rgba(255,176,32,.4)}
.vid-fr:hover .vid-play{transform:translate(-50%,-50%) scale(1.09)}
.vid-play::after{content:"";width:0;height:0;border-left:21px solid #0B0B0B;border-top:13px solid transparent;
  border-bottom:13px solid transparent;margin-left:6px}
.vid-cap{padding:12px 15px;border-top:1px solid var(--line);font-size:15.5px;color:var(--txt-3)}
.vid-cap a{color:var(--amber)}

/* ================= LISTEN BAR ================= */
.listen{display:flex;align-items:center;gap:11px;border:1px solid var(--line-2);border-radius:var(--r);
  background:var(--panel);padding:10px 13px;margin-bottom:26px;flex-wrap:wrap}
.listen button{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;
  letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--line-2);border-radius:var(--r);
  background:none;padding:9px 13px;cursor:pointer;color:var(--txt-2);transition:.2s var(--ease)}
.listen button:hover{border-color:var(--amber);color:var(--amber)}
.listen button[aria-pressed="true"]{background:var(--amber);border-color:var(--amber);color:#0B0B0B;
  font-weight:600}
.listen .wave{display:flex;align-items:flex-end;gap:3px;height:18px;flex:none}
.listen .wave i{width:3px;background:var(--line-2);height:5px;border-radius:1px;transition:background .3s}
.listen.on .wave i{background:var(--amber);animation:eq2 .9s ease-in-out infinite}
.listen.on .wave i:nth-child(2){animation-delay:.12s}
.listen.on .wave i:nth-child(3){animation-delay:.24s}
.listen.on .wave i:nth-child(4){animation-delay:.36s}
.listen.on .wave i:nth-child(5){animation-delay:.48s}
@keyframes eq2{0%,100%{height:5px}50%{height:17px}}
@media (prefers-reduced-motion:reduce){.listen.on .wave i{animation:none;height:11px}}
.listen .st{font-family:var(--mono);font-size:12px;color:var(--txt-3);flex:1;min-width:130px}
.listen select{font-family:var(--mono);font-size:12px;border:1px solid var(--line-2);
  border-radius:var(--r);background:var(--void);padding:8px 10px;color:var(--txt-2);cursor:pointer}

/* ================= WORKED EXAMPLE ================= */
.ex{border:1px solid var(--line-2);border-radius:var(--r);background:var(--panel);margin:1.9em 0;
  overflow:hidden}
.ex-hd{display:flex;align-items:baseline;gap:12px;padding:12px 15px;background:var(--panel-2);
  border-bottom:1px solid var(--line);flex-wrap:wrap}
.ex-hd .k{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);flex:none}
.ex-hd .t{font-family:var(--disp);font-weight:500;font-size:17.5px;flex:1;min-width:160px;
  letter-spacing:-.02em;color:var(--txt)}
.ex-bd>button.cap{border:none;border-radius:0;border-bottom:1px solid var(--line)}
.ex-ft{padding:14px 15px;font-size:16px;color:var(--txt-2)}
.ex-ft p:last-child{margin-bottom:0}
.ex-src{display:flex;gap:9px;flex-wrap:wrap;align-items:center;padding:11px 15px;
  border-top:1px solid var(--line);background:var(--panel-2)}
.ex-src .lb{font-family:var(--mono);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--txt-4)}

/* ================= PANEL ANATOMY ================= */
.anat{margin:1.9em 0;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden}
.anat-wrap{position:relative;display:block;line-height:0}
.anat-wrap img{width:100%;display:block}
.anat-hot{position:absolute;border:2px solid var(--amber);background:rgba(255,176,32,.14);
  border-radius:2px;opacity:0;transition:opacity .28s var(--ease);pointer-events:none}
.anat-hot.on{opacity:1}
.anat-pin{position:absolute;width:26px;height:26px;background:var(--amber);color:#0B0B0B;border:none;
  border-radius:50%;font-family:var(--mono);font-size:13px;font-weight:700;display:grid;place-items:center;
  cursor:pointer;transform:translate(-50%,-50%);transition:.2s var(--ease);padding:0;z-index:2}
.anat-pin:hover,.anat-pin[aria-pressed="true"]{background:var(--cyan);transform:translate(-50%,-50%) scale(1.16)}
.anat-list{border-top:1px solid var(--line-2);background:var(--panel)}
.anat-list button{display:flex;gap:14px;width:100%;text-align:left;border:none;
  border-bottom:1px solid var(--line);background:none;padding:14px 15px;cursor:pointer;
  align-items:flex-start;transition:background .2s;font-family:inherit}
.anat-list button:last-child{border-bottom:none}
.anat-list button:hover{background:var(--panel-2)}
.anat-list button[aria-pressed="true"]{background:var(--amber-dim)}
.anat-list .n{font-family:var(--mono);font-size:13px;color:var(--amber);flex:none;padding-top:3px;font-weight:600}
.anat-list .c b{display:block;font-family:var(--disp);font-weight:500;font-size:17px;margin-bottom:3px;
  letter-spacing:-.02em;color:var(--txt)}
.anat-list .c span{font-size:15.5px;color:var(--txt-3);line-height:1.5;display:block}

/* ================= FIGURES / CHARTS ================= */
:root{
  --chart-ink:#E9ECF2; --chart-mute:rgba(233,236,242,.38); --chart-a1:#FFB020;
  --chart-a2:#5CC8FF;  --chart-grid:rgba(233,236,242,.20); --chart-on:#0B0B0B;
  --chart-fill:#171C25;
}
.fig{margin:1.9em 0;border:1px solid var(--line-2);border-radius:var(--r);background:var(--panel);
  overflow:hidden}
.fig-cap{display:flex;align-items:baseline;gap:12px;padding:12px 15px;border-bottom:1px solid var(--line);
  background:var(--panel-2);flex-wrap:wrap}
.fig-cap b{font-family:var(--disp);font-weight:500;font-size:17px;flex:1;min-width:160px;
  letter-spacing:-.02em;color:var(--txt)}
.fig-cap span{font-family:var(--mono);font-size:12px;color:var(--txt-4);letter-spacing:.06em}
.fig-body{padding:clamp(16px,2.4vw,26px);overflow-x:auto;-webkit-overflow-scrolling:touch}
.fig-body svg{width:100%;height:auto;display:block;min-width:min(100%,560px)}
.fig-donut{display:flex;gap:clamp(18px,3vw,40px);align-items:center;flex-wrap:wrap;justify-content:center}
.fig-donut svg{width:230px;height:230px;min-width:0;flex:none}
.fig-legend{display:flex;flex-direction:column;gap:11px;min-width:180px}
.fig-legend .lg{display:flex;align-items:center;gap:10px;font-size:15.5px;color:var(--txt-2)}
.fig-legend .lg i{width:13px;height:13px;flex:none;display:block;border-radius:2px}
.fig-legend .lg b{margin-left:auto;font-family:var(--mono);font-weight:600;color:var(--txt)}