/* Thirdward — a drafting instrument: two rulers, one marker, one commit. */
:root{
  --ground:#080C16; --panel:#0D1322; --panel2:#111A2C; --line:#1E2A42; --line2:#2A3A58;
  --ink:#E8EDF7; --ink-dim:#8A99B5; --ink-faint:#5A6B8C; --rose:#FF4D7D; --rose-dim:#8C2A46;
  --grid:rgba(120,150,200,.07);
  --rail:128px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--ground); color:var(--ink);
  font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px; line-height:1.5; letter-spacing:-.005em;
  padding:0 0 78px; min-height:100vh;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:38px 38px;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:Syne,system-ui,sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.02}

/* ---------- the deck: fixed chrome, and the buy control never leaves the screen ---------- */
.deck{
  overflow:hidden;
  position:fixed; left:0; right:0; bottom:0; z-index:60;
  display:flex; align-items:center; gap:10px; padding:8px 12px calc(8px + env(safe-area-inset-bottom));
  background:rgba(8,12,22,.94); backdrop-filter:blur(10px); border-top:1px solid var(--line);
}
.deck-mark{display:none}
.deck-nav{display:flex; gap:14px; flex:1; min-width:0}
.deck-nav a{font-size:12px; color:var(--ink-dim); text-transform:uppercase; letter-spacing:.09em; padding:6px 0; white-space:nowrap}
.deck-nav a[aria-current]{color:var(--ink); box-shadow:inset 0 -2px 0 var(--rose)}
.deck-buy{display:flex; align-items:center; gap:8px; flex:none}
.deck-tick{font-size:11px; color:var(--ink-faint); letter-spacing:.06em; display:none}
.deck-go{
  font-family:Syne,sans-serif; font-weight:800; font-size:12.5px; letter-spacing:.06em; text-transform:uppercase;
  padding:9px 14px; border-radius:999px; background:var(--rose); color:#12040A; white-space:nowrap;
}
.deck-go[data-dead]{background:transparent; color:var(--ink-faint); border:1px dashed var(--line2); text-transform:none; letter-spacing:0; font-family:"IBM Plex Mono",monospace; font-weight:500}

/* ---------- stage ---------- */
#stage{max-width:560px; margin:0 auto; padding:20px 16px 8px}
.hero{margin:6px 0 20px}
.hero h1{font-size:30px}
.hero p{color:var(--ink-dim); margin-top:10px; font-size:13.5px}
.eyebrow{font-size:11px; text-transform:uppercase; letter-spacing:.16em; color:var(--rose); margin-bottom:10px}

/* ---------- the instrument ---------- */
.instr{background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:16px 14px 12px; margin-bottom:12px; position:relative}
.instr.live{border-color:var(--rose-dim); box-shadow:0 0 0 1px rgba(255,77,125,.08), 0 18px 44px -28px rgba(255,77,125,.5)}
.instr-head{display:flex; align-items:baseline; justify-content:space-between; gap:10px; margin-bottom:4px}
.instr-head h2{font-size:17px}
.instr-head .state{font-size:11px; text-transform:uppercase; letter-spacing:.12em; color:var(--ink-faint)}
.instr-head .state.hot{color:var(--rose)}
.instr-sub{font-size:12px; color:var(--ink-dim); margin-bottom:16px}

.scale{position:relative; height:74px; margin:26px 6px 4px; touch-action:none; cursor:crosshair; user-select:none}
.scale.flat{cursor:default}
.axis{position:absolute; left:0; right:0; top:44px; height:1px; background:var(--line2)}
.axis::before{
  content:""; position:absolute; left:0; right:0; top:0; height:9px;
  background:repeating-linear-gradient(90deg,var(--line2) 0 1px,transparent 1px calc(100%/20));
  opacity:.75;
}
.axis::after{
  content:""; position:absolute; left:0; right:0; top:0; height:15px;
  background:repeating-linear-gradient(90deg,var(--line2) 0 1px,transparent 1px calc(100%/4));
}
.pip{position:absolute; top:26px; width:2px; height:18px; margin-left:-1px; background:var(--ink-dim); border-radius:1px; opacity:.85}
.pip.mine{background:var(--ink); box-shadow:0 0 0 2px rgba(232,237,247,.15)}
.pip.win{background:var(--rose); height:26px; top:18px; box-shadow:0 0 12px rgba(255,77,125,.8)}
.pip b{position:absolute; bottom:22px; left:50%; transform:translateX(-50%); font-size:10px; color:var(--ink-faint); font-weight:500}
.pip.win b{color:var(--rose)}
.knob{position:absolute; top:12px; width:3px; height:46px; margin-left:-1.5px; background:var(--rose); box-shadow:0 0 14px rgba(255,77,125,.9); transition:left .12s ease-out}
.knob::before{content:""; position:absolute; top:-9px; left:50%; transform:translateX(-50%); border-left:7px solid transparent; border-right:7px solid transparent; border-top:10px solid var(--rose)}
.mark{position:absolute; top:8px; width:2px; height:50px; margin-left:-1px; background:var(--rose); transition:left .5s cubic-bezier(.22,1,.36,1)}
.mark::before{content:""; position:absolute; top:-10px; left:50%; transform:translateX(-50%); border-left:8px solid transparent; border-right:8px solid transparent; border-top:12px solid var(--rose); filter:drop-shadow(0 0 7px rgba(255,77,125,.85))}
.mark span{position:absolute; top:-30px; left:50%; transform:translateX(-50%); font-size:10.5px; color:var(--rose); white-space:nowrap; letter-spacing:.04em}
.ends{display:flex; justify-content:space-between; margin:0 6px; font-size:10.5px; color:var(--ink-faint); letter-spacing:.06em}
.ends span:nth-child(2),.ends span:nth-child(3),.ends span:nth-child(4){opacity:.7}
.empty-note{color:var(--ink-faint); font-size:12px; text-align:center; padding:10px 4px 2px}

/* the commit */
.commit{margin-top:14px; border-top:1px solid var(--line); padding-top:14px}
.readout{display:flex; align-items:center; gap:12px}
.readout .num{font-family:Syne,sans-serif; font-weight:800; font-size:44px; line-height:1; color:var(--rose); flex:0 0 auto; min-width:78px; font-variant-numeric:tabular-nums}
.readout .lab{font-size:11.5px; color:var(--ink-dim); line-height:1.45; flex:1 1 auto; min-width:0}
.nudge{display:flex; gap:6px; margin-left:auto; flex:0 0 auto}
.nudge button{
  width:38px; height:38px; border-radius:10px; border:1px solid var(--line2); background:var(--panel2); color:var(--ink);
  font-family:"IBM Plex Mono",monospace; font-size:17px; cursor:pointer
}
.nudge button:active{background:var(--line)}
.commit button.go{
  display:block; width:100%; margin-top:12px; padding:15px; border:0; border-radius:12px; cursor:pointer;
  background:var(--rose); color:#12040A; font-family:Syne,sans-serif; font-weight:800; font-size:15px; letter-spacing:.03em;
}
.commit button.go:disabled{background:var(--panel2); color:var(--ink-faint); cursor:not-allowed}
.note{font-size:11.5px; color:var(--ink-dim); margin-top:9px; min-height:16px}
.note.bad{color:var(--rose)}

/* the link between the two rulers */
.linkline{display:flex; align-items:center; gap:10px; margin:0 0 12px; padding:0 4px; color:var(--ink-faint); font-size:11.5px}
.linkline i{flex:1; height:1px; background:linear-gradient(90deg,var(--line2),transparent); font-style:normal}
.linkline b{color:var(--rose); font-weight:500}

/* the verdict strip under the waiting ruler */
.verdict{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; margin-top:14px; background:var(--line); border-radius:10px; overflow:hidden}
.verdict div{background:var(--panel2); padding:10px 8px}
.verdict dt{font-size:10px; text-transform:uppercase; letter-spacing:.1em; color:var(--ink-faint)}
.verdict dd{font-family:Syne,sans-serif; font-weight:700; font-size:17px; margin-top:4px; font-variant-numeric:tabular-nums}
.verdict dd.rose{color:var(--rose)}

/* ---------- aside: tape, settled rooms, primer ---------- */
.rig{min-width:0}
.aside{display:flex; flex-direction:column; gap:12px; margin-top:12px}
.card{background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:14px}
.card h3{font-size:13px; text-transform:uppercase; letter-spacing:.12em; color:var(--ink-dim); font-weight:700; margin-bottom:10px}
.strip{display:flex; flex-direction:column}
.strip a,.strip div{display:flex; align-items:baseline; gap:8px; padding:7px 0; border-bottom:1px dashed var(--line); font-size:12px}
.strip a:last-child,.strip div:last-child{border-bottom:0}
.strip .w{color:var(--ink-dim); flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.strip .c{font-family:Syne,sans-serif; font-weight:700; color:var(--rose); font-size:15px}
.strip .r{color:var(--ink-faint); font-size:10.5px}
.quiet{color:var(--ink-faint); font-size:12px; padding:6px 0 2px}
.numbers{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line); border-radius:10px; overflow:hidden}
.numbers div{background:var(--panel2); padding:10px}
.numbers dt{font-size:10px; text-transform:uppercase; letter-spacing:.1em; color:var(--ink-faint)}
.numbers dd{font-family:Syne,sans-serif; font-weight:700; font-size:18px; margin-top:3px}
.primer p{font-size:12.5px; color:var(--ink-dim); margin-bottom:8px}
.primer p:last-child{margin-bottom:0}
.primer b{color:var(--ink); font-weight:500}

/* ---------- rooms + rules + chair views ---------- */
.roomrow{display:grid; grid-template-columns:auto 1fr auto; gap:10px; align-items:center; padding:12px 0; border-bottom:1px solid var(--line)}
.roomrow:last-child{border-bottom:0}
.roomrow .id{font-family:Syne,sans-serif; font-weight:800; font-size:15px; color:var(--ink-dim)}
.roomrow .mini{position:relative; height:16px; background:linear-gradient(90deg,var(--line2) 0 1px,transparent 1px) 0 100%/calc(100%/10) 4px repeat-x; border-bottom:1px solid var(--line2)}
.roomrow .mini i{position:absolute; bottom:0; width:2px; height:9px; margin-left:-1px; background:var(--ink-dim)}
.roomrow .mini i.t{background:var(--rose); height:16px; box-shadow:0 0 8px rgba(255,77,125,.7)}
.roomrow .out{text-align:right; font-size:11px; color:var(--ink-faint)}
.roomrow .out b{display:block; font-family:Syne,sans-serif; font-size:15px; color:var(--rose); font-weight:700}
.prose h2{font-size:19px; margin:22px 0 8px}
.prose p{color:var(--ink-dim); margin-bottom:10px; font-size:13.5px}
.prose ol{color:var(--ink-dim); margin:0 0 12px 18px; font-size:13.5px}
.prose ol li{margin-bottom:6px}
.prose b{color:var(--ink); font-weight:500}
.addr{font-size:11px; color:var(--ink-faint); word-break:break-all}

.foot{margin:26px 0 8px; padding-top:16px; border-top:1px solid var(--line); font-size:11px; color:var(--ink-faint); line-height:1.8}
.foot a{color:var(--ink-dim); text-decoration:underline; text-underline-offset:3px}
.foot .ca{word-break:break-all; display:block}

/* ---------- ~640px: one column still, but a wider measure and a bigger instrument ---------- */
@media (min-width:640px){
  body{font-size:15px}
  #stage{max-width:680px; padding:30px 24px 10px}
  .hero h1{font-size:42px}
  .hero p{font-size:15px; max-width:52ch}
  .instr{padding:20px 20px 16px; border-radius:16px}
  .instr-head h2{font-size:21px}
  .scale{height:96px}
  .axis{top:58px}
  .pip{top:34px; height:24px}
  .pip.win{height:34px; top:24px}
  .knob{top:16px; height:60px}
  .mark{top:10px; height:66px}
  .readout .num{font-size:58px; min-width:102px}
  .verdict dd{font-size:20px}
}

/* ---------- ≥1040px: the rail appears and the page recomposes into two columns ---------- */
@media (min-width:1040px){
  body{padding:0 0 0 var(--rail)}
  .deck{
    top:0; bottom:0; right:auto; width:var(--rail); flex-direction:column; align-items:stretch; gap:0;
    padding:20px 14px; border-top:0; border-right:1px solid var(--line);
  }
  .deck-mark{display:flex; flex-direction:column; align-items:flex-start; gap:8px; margin-bottom:26px}
  .deck-mark img{width:36px; height:36px; border-radius:9px}
  .deck-mark b{font-family:Syne,sans-serif; font-weight:800; font-size:11px; letter-spacing:-.02em; color:var(--ink-dim)}
  .deck-nav{flex-direction:column; gap:2px; flex:1}
  .deck-nav a{font-size:12px; padding:8px 0}
  .deck-nav a[aria-current]{box-shadow:inset 2px 0 0 var(--rose); padding-left:9px}
  .deck-buy{flex-direction:column; align-items:stretch; gap:7px; margin-top:auto}
  .deck-tick{display:block}
  .deck-go{text-align:center; padding:11px 8px; font-size:12px}
  #stage{
    max-width:1180px; padding:40px 36px 12px;
    display:grid; grid-template-columns:minmax(0,1fr) 352px; gap:28px; align-items:start;
  }
  .hero{grid-column:1 / -1; margin-bottom:6px}
  .rig{grid-column:1}
  .aside{grid-column:2; margin-top:0}
  .hero h1{font-size:52px; max-width:16ch}
  .aside{position:sticky; top:40px}
  .foot{grid-column:1 / -1}
  .scale{height:108px}
  .axis{top:66px}
  .knob{top:18px; height:68px}
  .mark{top:12px; height:74px}
}
@media (min-width:1320px){
  #stage{grid-template-columns:minmax(0,1fr) 400px; gap:36px}
  .hero h1{font-size:60px}
}