/* Line diagram builder: everything is scoped under .ldb. Built from the mockup by ldb/build.cjs. */
/* Layout concept: blue hour over the customer's house, all on one screen. The house is the
   biggest thing on the page; every control sits in one bar above it and every answer in one
   rail beside it, so a change and its effect are always in view together. Gold is energy,
   coral is where it stops. On phones the same pieces stack. */
.ldb{
  --night:#05080F; --night-2:#0A1020; --night-3:#111A2E;
  --glass:rgba(255,255,255,.035); --glass-hi:rgba(255,255,255,.06); --line:rgba(190,205,240,.12); --line-hi:rgba(190,205,240,.24);
  --text:#ECEFF6; --muted:#8D99B4; --faint:#5C6883;
  --gold:#F5C451; --gold-hi:#FFE7A6; --amber:#F2A33A; --gold-glow:rgba(245,196,81,.35);
  --coral:#FF6A4D; --coral-glow:rgba(255,106,77,.35);
  --paper:#FFFFFF; --paper-ink:#0F1826; --paper-line:#0F1826; --paper-muted:#5A6780; --paper-fill:#F3F5F9;
  --display:'Instrument Serif',Georgia,'Times New Roman',serif;
  --sans:'Instrument Sans','Helvetica Neue',Helvetica,Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  color-scheme:dark;
}
.ldb [hidden]{display:none!important}
.ldb{background-color:var(--night);color:var(--text);font-family:var(--sans);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(1200px 520px at 70% -8%,rgba(245,196,81,.08),transparent 60%),
                   radial-gradient(900px 600px at -10% 30%,rgba(80,120,220,.08),transparent 60%),
                   linear-gradient(var(--night),var(--night-2) 70%,var(--night));
  }
.ldb button,.ldb select,.ldb input{font:inherit;color:inherit}
.ldb :focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.ldb .page{max-width:1680px;margin:0 auto;padding-inline:16px;padding-block:12px 20px;display:grid;gap:10px}

/* ---- title row ---- */
.ldb .lb-top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 20px}
.ldb h1{font-family:var(--display);font-weight:400;font-size:clamp(24px,2.4vw,32px);line-height:1.05;letter-spacing:-.01em;margin:0;text-wrap:balance}
.ldb h1 .lb-eyebrow{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:5px;line-height:1.4}
.ldb h1 .lb-eyebrow::before{content:"";display:inline-block;width:18px;height:1px;background:var(--gold);vertical-align:middle;margin-right:8px;box-shadow:0 0 8px var(--gold)}
.ldb h1 em{font-style:italic;background:linear-gradient(100deg,var(--gold-hi),var(--gold) 45%,var(--amber));-webkit-background-clip:text;background-clip:text;color:transparent}
.ldb .lb-tright{display:flex;align-items:center;gap:10px}
.ldb .lb-chip{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:4px 9px;white-space:nowrap}
.ldb .seg{display:inline-flex;padding:2px;border:1px solid var(--line);border-radius:999px;background:var(--glass)}
.ldb .seg button{border:0;background:transparent;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--muted);cursor:pointer;transition:color .2s,background .2s,box-shadow .2s;white-space:nowrap}
.ldb .seg button[aria-pressed="true"]{background:linear-gradient(180deg,#FFD978,var(--gold));color:#1A1206;box-shadow:0 0 14px var(--gold-glow)}

/* ---- the equipment bar ---- */
.ldb .dock{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:flex-end;padding:8px 12px;border:1px solid var(--line);border-radius:14px;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02))}
.ldb .lb-f{display:grid;gap:3px;min-width:0}
.ldb .lb-f > span{font-family:var(--mono);font-size:8.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.ldb .lb-f select{appearance:none;-webkit-appearance:none;border:1px solid var(--line);background:var(--night-3) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23F5C451' fill='none' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 9px center;
  padding:5px 26px 5px 9px;border-radius:8px;font-size:12.5px;max-width:100%;color:var(--text)}
.ldb .lb-f select:disabled{opacity:.5}
.ldb .lb-step{display:inline-flex;align-items:stretch;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--night-3)}
.ldb .lb-step button{width:28px;border:0;background:transparent;font-size:15px;color:var(--gold);cursor:pointer}
.ldb .lb-step button:hover{background:var(--glass-hi)}
.ldb .lb-step output{min-width:34px;display:grid;place-items:center;font-family:var(--mono);font-weight:600;font-size:12.5px;font-variant-numeric:tabular-nums}
.ldb .tog{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:5px 0;cursor:pointer;color:var(--muted);white-space:nowrap}
.ldb .tog input{width:14px;height:14px;margin:0;accent-color:var(--gold)}
.ldb .pair{display:flex;gap:5px;align-items:center}
.ldb .pair .lb-u{font-size:11px;color:var(--faint)}
.ldb .lb-f.pulse select{box-shadow:0 0 0 2px var(--gold),0 0 14px var(--gold-glow)}

/* ---- main: house + rail ---- */
/* phones: equipment, house, results stacked. Wider: equipment and results on the left, the house on the right */
.ldb .main{display:grid;grid-template-columns:minmax(0,1fr);grid-template-areas:"dock" "stage" "rail";gap:10px;align-items:start}
.ldb .dock{grid-area:dock} .ldb .stage{grid-area:stage} .ldb .lb-rail{grid-area:rail}
@media (min-width:900px){
  .ldb .main{grid-template-columns:minmax(300px,min(36%,440px)) minmax(0,1fr);grid-template-areas:"dock stage" "rail stage";grid-template-rows:auto 1fr}
  .ldb .dock{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 10px;align-items:end;padding:8px 10px}
  .ldb .dock .pair select{flex:1 1 0;min-width:0;width:auto}
  .ldb .dock .tog{padding:2px 0}
  .ldb .dock .lb-f.wide{grid-column:1 / -1}
  .ldb .dock .lb-f select{width:100%}
}
.ldb .lb-card{border:1px solid var(--line);border-radius:14px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015))}
.ldb .stage{overflow:hidden;min-width:0;display:flex;flex-direction:column}
.ldb .status{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;justify-content:space-between;padding:7px 12px;border-bottom:1px solid var(--line)}
.ldb .pill{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:13px;white-space:nowrap}
.ldb .pill .dot{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 3px rgba(245,196,81,.15),0 0 12px var(--gold)}
.ldb .pill.bad{color:var(--coral)}
.ldb .pill.bad .dot{background:var(--coral);box-shadow:0 0 0 3px rgba(255,106,77,.15),0 0 12px var(--coral)}
.ldb .checks{display:flex;flex-wrap:wrap;gap:4px 12px;margin:0;padding:0;list-style:none}
.ldb .checks li{display:inline-flex;gap:5px;font-size:11.5px;color:var(--muted);white-space:nowrap;cursor:help}
.ldb .checks .lb-mk{color:var(--gold);font-weight:700;text-shadow:0 0 8px var(--gold-glow)}
.ldb .checks li.x{color:#FFB3A3}
.ldb .checks li.x .lb-mk{color:var(--coral);text-shadow:0 0 8px var(--coral-glow)}
.ldb .dayArea{position:relative;min-height:0}
.ldb .sceneWrap{overflow-x:auto}
.ldb .sceneBox{position:relative;min-width:0}
@media (max-width:720px){.ldb .sceneBox{min-width:720px}}
.ldb .scene{display:block;width:100%;height:auto}
.ldb .fx{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.ldb .phoneNote{display:none;margin:0;padding:8px 12px;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line)}
@media (max-width:720px){.ldb .phoneNote{display:block}}

/* svg drawing */
.ldb .hl{stroke:rgba(190,208,245,.42);fill:none}
.ldb .wall{stroke:rgba(190,208,245,.42);stroke-width:1.2}
.ldb .siding{stroke:rgba(255,255,255,.035);stroke-width:1}
.ldb .roof{stroke:rgba(190,208,245,.42);stroke-width:1.2}
.ldb .shingle{stroke:rgba(255,255,255,.035);stroke-width:1}
.ldb .trim{fill:#0B1222;stroke:rgba(190,208,245,.42);stroke-width:1.1}
.ldb .lbl{font-family:var(--mono);font-size:9.5px;fill:var(--muted);letter-spacing:.08em}
.ldb .lblb{font-family:var(--mono);font-size:10px;fill:var(--text);font-weight:600;letter-spacing:.08em}
.ldb .eq{fill:#0C1426;stroke:rgba(200,215,250,.55);stroke-width:1.3}
.ldb .eqd{fill:rgba(200,215,250,.55)}
.ldb .bad .eq{stroke:var(--coral)}
.ldb .bad .lblb{fill:var(--coral)}
.ldb .tube{stroke:#18223A;stroke-width:6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ldb .tube-hi{stroke:rgba(255,255,255,.06);stroke-width:1;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ldb .thread{stroke:rgba(245,196,81,.16);stroke-width:1;fill:none}
.ldb .tap{cursor:pointer}
.ldb .tap:hover .eq{stroke:var(--gold)}
.ldb .xmark circle{fill:#1A0D0A;stroke:var(--coral);stroke-width:1.6}
.ldb .xmark path{stroke:var(--coral);stroke-width:2.1;stroke-linecap:round}

/* ---- the clock ---- */
.ldb .dayui{position:absolute;left:0;top:0;z-index:2;display:flex;flex-direction:row-reverse;gap:10px;align-items:center;padding:5px 5px 5px 12px;border-radius:0 999px 999px 0;
  background:rgba(6,10,20,.74);border:solid rgba(255,255,255,.12);border-width:0 1px 1px 0;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.ldb .clock{width:58px;height:58px;touch-action:none;cursor:grab;display:block}
.ldb .clock:active{cursor:grabbing}
.ldb .clock .face{fill:rgba(255,255,255,.04);stroke:rgba(255,255,255,.22);stroke-width:1}
.ldb .clock .tick{stroke:rgba(255,255,255,.45);stroke-width:1.2}
.ldb .clock .tick.big{stroke:rgba(255,255,255,.8);stroke-width:2}
.ldb .clock .hh{stroke:var(--gold);stroke-width:4;stroke-linecap:round;filter:drop-shadow(0 0 4px rgba(245,196,81,.7))}
.ldb .clock .mh{stroke:#E9EEF8;stroke-width:2;stroke-linecap:round}
.ldb .clock .grip{fill:var(--gold);filter:drop-shadow(0 0 6px rgba(245,196,81,.9))}
.ldb .now{display:grid;gap:1px;min-width:138px}
.ldb .now .t{display:flex;align-items:center;gap:8px}
.ldb .now .t b{font-family:var(--display);font-weight:400;font-size:18px;line-height:1}
.ldb .now .t button{border:1px solid rgba(255,255,255,.25);background:transparent;border-radius:999px;width:20px;height:20px;display:grid;place-items:center;cursor:pointer;color:var(--gold);font-size:10px}
.ldb .now .t button:hover{border-color:var(--gold)}
.ldb .now .r{display:flex;justify-content:space-between;gap:8px;font-family:var(--mono);font-size:9px;color:#C5CDE0;font-variant-numeric:tabular-nums}
.ldb .now .r i{font-style:normal;display:inline-flex;align-items:center;gap:5px}
.ldb .now .r i::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}
.ldb .now .sol{color:var(--gold)} .ldb .now .bat{color:#7FD4FF} .ldb .now .grd{color:#C9C4FF} .ldb .now .home{color:#E9EEF8}
.ldb .soc{height:3px;border-radius:2px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:1px}
.ldb .soc span{display:block;height:100%;background:linear-gradient(90deg,#4FB8F0,#9BE2FF);box-shadow:0 0 8px #7FD4FF}
@media (max-width:720px){.ldb .dayui{position:static;margin:10px 10px 0;border-radius:14px;border-width:1px;justify-content:flex-start;flex-wrap:wrap}}

/* ---- the rail: connection, problems, production, order ---- */
.ldb .lb-rail{display:grid;gap:10px;align-content:start;min-width:0}
.ldb .panel{border:1px solid var(--line-hi);border-radius:12px;padding:10px 12px;display:grid;gap:6px;background:var(--glass)}
.ldb .panel.bad{border-color:rgba(255,106,77,.55);background:linear-gradient(180deg,rgba(255,106,77,.10),rgba(255,106,77,.03))}
.ldb .panel.okay{border-color:rgba(245,196,81,.45);background:linear-gradient(180deg,rgba(245,196,81,.08),rgba(245,196,81,.02))}
.ldb .panel h3{margin:0;font-family:var(--display);font-weight:400;font-size:19px;line-height:1.15;text-wrap:balance}
.ldb .panel.bad h3{color:#FFB3A3}
.ldb .panel p{margin:0;color:var(--muted);font-size:12px;line-height:1.4}
.ldb .panel .math{font-family:var(--mono);font-size:10.5px;color:var(--text);font-variant-numeric:tabular-nums}
.ldb .panel .lb-k{font-family:var(--mono);font-size:8.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.ldb .lb-opts{display:grid;grid-template-columns:1fr 1fr;gap:5px}
.ldb .lb-opt{border:1px solid var(--line-hi);border-radius:9px;background:var(--night-2);padding:5px 8px;text-align:left;cursor:pointer;transition:border-color .2s,box-shadow .2s,background .2s;min-width:0}
.ldb .lb-opt b{display:block;font-size:11.5px;font-weight:600;line-height:1.25}
.ldb .lb-opt small{display:block;font-size:10px;color:var(--muted);line-height:1.25;margin-top:1px}
.ldb .lb-opt:hover{border-color:var(--gold)}
.ldb .lb-opt[aria-pressed="true"]{border-color:var(--gold);background:linear-gradient(180deg,rgba(245,196,81,.16),rgba(245,196,81,.05));box-shadow:0 0 16px rgba(245,196,81,.16)}
.ldb .lb-opt.std[aria-pressed="true"]{border-color:var(--coral);background:rgba(255,106,77,.08);box-shadow:none}
.ldb .lb-opt:disabled{opacity:.4;cursor:not-allowed}
.ldb .lb-prod{padding:10px 12px;display:grid;gap:6px}
.ldb .lb-prod.float{position:absolute;right:0;top:0;z-index:2;width:auto;padding:6px 14px 7px;gap:0;border-radius:0 0 0 16px;
  background:rgba(6,10,20,.74);border:solid rgba(255,255,255,.12);border-width:0 0 1px 1px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.ldb .lb-prod.float h2{display:none}
.ldb .lb-prod.float .lb-trio{display:flex;gap:18px;align-items:flex-end}
.ldb .lb-stat b.c{color:#9BE2FF}
.ldb .lb-prod.float .lb-stat b{font-size:17px}
.ldb .lb-prod.float .lb-stat small{font-size:9px}
.ldb .lb-prod.float .lb-bline{font-size:10px}
@media (max-width:720px){.ldb .lb-prod.float{position:static;width:auto;margin:10px 10px 0;border-radius:14px;border-width:1px}}
.ldb .lb-rail > .lb-note{padding:0 4px}
.ldb .lb-prod h2{margin:0;font-family:var(--mono);font-weight:500;font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint)}
.ldb .lb-trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.ldb .lb-stat{display:grid;gap:0;min-width:0}
.ldb .lb-stat b{font-family:var(--display);font-weight:400;font-size:22px;line-height:1.05;font-variant-numeric:tabular-nums;white-space:nowrap}
.ldb .lb-stat b.g{background:linear-gradient(100deg,var(--gold-hi),var(--gold) 60%,var(--amber));-webkit-background-clip:text;background-clip:text;color:transparent}
.ldb .lb-stat small{font-size:10px;color:var(--muted);line-height:1.3}
.ldb .lb-bars{display:grid;grid-template-columns:repeat(12,1fr);gap:3px;align-items:end;height:34px;border-bottom:1px solid var(--line-hi)}
.ldb .lb-bars i{display:block;border-radius:2px 2px 0 0;background:linear-gradient(180deg,var(--gold-hi),var(--gold) 40%,rgba(242,163,58,.35));box-shadow:0 0 8px rgba(245,196,81,.2);transition:height .6s cubic-bezier(.2,.8,.2,1)}
.ldb .lb-months{display:grid;grid-template-columns:repeat(12,1fr);gap:3px;font-family:var(--mono);font-size:8px;color:var(--faint);text-align:center;margin-top:2px}
.ldb .lb-bline{font-size:11.5px;color:var(--muted)}
.ldb .lb-bline b{color:#9BE2FF;font-weight:600}
.ldb .lb-note{font-size:10px;color:var(--faint);line-height:1.4;margin:0}
.ldb .lb-cta{display:inline-flex;align-items:baseline;gap:8px;white-space:nowrap;text-decoration:none;font-weight:700;padding:7px 14px;border-radius:999px;font-size:13px;color:#1A1206;
  background:linear-gradient(180deg,#FFD978,var(--gold) 55%,var(--amber));box-shadow:0 8px 24px rgba(245,196,81,.22),inset 0 1px 0 rgba(255,255,255,.5);transition:transform .2s,box-shadow .2s}
.ldb .lb-cta:hover{transform:translateY(-1px)}
.ldb .lb-cta small{font-weight:500;font-size:10.5px;opacity:.75}
@media (max-width:1100px){.ldb .lb-cta small{display:none}}
.ldb .lb-tright{flex-wrap:wrap;justify-content:flex-end}

/* ---- plan view: a white sheet on the dark desk ---- */
.ldb .planWrap{padding:12px;overflow:auto;min-height:0}
.ldb .sheet{background:var(--paper);color:var(--paper-ink);border-radius:6px;padding:14px;display:grid;gap:10px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.ldb .sheet svg{width:100%;height:auto;display:block}
.ldb .pl{stroke:var(--paper-line);fill:none;stroke-width:1.4}
.ldb .pt{font-family:var(--mono);font-size:10px;fill:var(--paper-ink)}
.ldb .pt.s{font-size:8.5px;fill:var(--paper-muted)}
.ldb .boxes{display:flex;flex-wrap:wrap;gap:8px}
.ldb .box{border:1px solid var(--paper-line);font-family:var(--mono);font-size:10.5px;min-width:0}
.ldb .box h4{margin:0;padding:3px 7px;border-bottom:1px solid var(--paper-line);font-size:10.5px;font-weight:600;text-align:center;letter-spacing:.04em}
.ldb .box div{padding:3px 7px}
.ldb .tw{overflow-x:auto;border:1px solid var(--paper-line)}
.ldb table.wt{border-collapse:collapse;font-family:var(--mono);font-size:10.5px;font-variant-numeric:tabular-nums;min-width:1040px;width:100%;color:var(--paper-ink)}
.ldb .wt th,.ldb .wt td{border:1px solid var(--paper-line);padding:3px 5px;text-align:center;white-space:nowrap}
.ldb .wt th{font-weight:600;font-size:9.5px;line-height:1.2;background:var(--paper-fill)}
.ldb .wt td.l{text-align:left;white-space:normal}
.ldb .wt .lb-tag{display:inline-grid;place-items:center;width:18px;height:18px;border:1.4px solid var(--paper-line);border-radius:50%}

/* ---- one screen: the house takes whatever height is left ---- */
.ldb .page.fit{grid-template-rows:auto minmax(0,1fr);overflow:hidden}
.ldb .page.fit .main{height:100%;min-height:0;grid-template-rows:auto minmax(0,1fr)}
.ldb .page.fit .stage{height:100%;min-height:0}
.ldb .page.fit .dayArea{flex:1 1 auto}
.ldb .page.fit .sceneWrap,.ldb .page.fit .sceneBox{height:100%;overflow:hidden}
.ldb .page.fit .scene{height:100%}
.ldb .page.fit .planWrap{flex:1 1 auto}
.ldb .page.fit .lb-rail{height:100%;min-height:0;overflow-y:auto;scrollbar-width:thin}
/* short screens: keep the three figures, drop the chart and the fine print */
@media (max-height:820px){.ldb .page.fit .lb-prod .lb-bars,.ldb .page.fit .lb-prod .lb-months,.ldb .page.fit .lb-prod .lb-note{display:none}}
/* this page needs every pixel of height: the site ticker steps aside */
body:has(.page.fit) .ticker{display:none}
@media (prefers-reduced-motion:reduce){.ldb .lb-bars i,.ldb .lb-cta{transition:none}}

/* ---- live page additions ---- */
.ldb{padding-block:6px 10px}