@font-face{font-family:"Instrument Sans";src:url("/fonts/InstrumentSans-VF.woff2") format("woff2");font-weight:400 700;font-stretch:75% 100%;font-style:normal;font-display:swap}
:root{
  --white:#FFFFFF; --mist:#F3F7FB; --ink:#0D1F36; --slate:#5A6B80; --line:#DCE5EF;
  --blue:#2462F5; --blue-deep:#123A8F; --ice:#E7EFFE; --amber:#E9A23B; --amber-soft:#FDF3E3;
  --sky:#8DB5FF; --neg:#C8412F; --pos:#1F7F55; --band:rgba(36,98,245,.14); --glass:rgba(255,255,255,.78);
  --font:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --r-s:8px; --r-m:14px; --r-l:24px;
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --white:#0A1322; --mist:#0F1B2E; --ink:#E6EDF7; --slate:#93A3B8; --line:#1F2F46;
    --blue:#6E9BFF; --blue-deep:#A9C3FF; --ice:#15254A; --amber:#F0B354; --amber-soft:#2E2413;
    --sky:#3E68C8; --neg:#FF7B6E; --pos:#4CC38A; --band:rgba(110,155,255,.18); --glass:rgba(10,19,34,.78);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --white:#0A1322; --mist:#0F1B2E; --ink:#E6EDF7; --slate:#93A3B8; --line:#1F2F46;
  --blue:#6E9BFF; --blue-deep:#A9C3FF; --ice:#15254A; --amber:#F0B354; --amber-soft:#2E2413;
  --sky:#3E68C8; --neg:#FF7B6E; --pos:#4CC38A; --band:rgba(110,155,255,.18); --glass:rgba(10,19,34,.78);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:inherit}
html{background:var(--white);scroll-padding-top:calc(env(safe-area-inset-top,0px) + 112px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--font);font-size:1.125rem;line-height:1.6;letter-spacing:-.003em;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:.18em}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
[hidden]{display:none !important}
button{font-family:inherit}

/* ---------- Global nav ---------- */
.gnav{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(18px);backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line)}
.gnav-in{max-width:1120px;margin:0 auto;height:52px;padding:0 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.word{font-weight:700;font-size:1.02rem;letter-spacing:-.015em;color:var(--ink);white-space:nowrap;display:flex;align-items:center;gap:.5rem}
.word:hover{text-decoration:none}
.word svg{width:22px;height:22px;flex:none}
.gnav nav{display:flex;gap:.2rem}
.gnav nav a{color:var(--slate);font-size:.92rem;font-weight:500;padding:.4rem .7rem;border-radius:999px}
.gnav nav a:hover{color:var(--ink);text-decoration:none}
.gnav nav a[aria-current="true"]{color:var(--ink);background:var(--mist)}

/* ---------- Section sub-nav ---------- */
.snav{position:sticky;top:calc(env(safe-area-inset-top,0px) + 53px);z-index:25;background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(18px);backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line)}
.snav-in{max-width:1120px;margin:0 auto;padding:0 1.25rem;height:52px;display:flex;align-items:center;gap:1.25rem;justify-content:space-between}
.snav-t{font-weight:650;font-size:1.05rem;letter-spacing:-.01em;white-space:nowrap}
.snav-links{display:flex;gap:.25rem;overflow-x:auto;scrollbar-width:none}
.snav-links::-webkit-scrollbar{display:none}
.snav-links a{white-space:nowrap;font-size:.86rem;color:var(--slate);padding:.35rem .75rem;border-radius:999px}
.snav-links a:hover{color:var(--ink);text-decoration:none}
.snav-links a[aria-current="page"]{background:var(--ink);color:var(--white)}
@media (max-width:720px){
  .gnav-in{padding:0 1rem}
  .gnav nav a{padding:.35rem .5rem;font-size:.86rem}
  .word span{display:none}
  .snav-t{display:none}
  .snav-in{padding:0 .75rem}
}

main{min-height:70vh}
.wrap{max-width:1120px;margin:0 auto;padding:0 1.25rem}
@media (max-width:640px){.wrap{padding:0 1rem}}

/* ---------- Home ---------- */
.hero{text-align:center;padding:5.5rem 1.25rem 1rem;max-width:980px;margin:0 auto}
.hero h1{font-size:clamp(2.6rem,6.6vw,5.4rem);line-height:1.02;letter-spacing:-.035em;font-weight:680;margin:0 auto 1.3rem;max-width:16ch;text-wrap:balance}
.hero p{font-size:clamp(1.15rem,2vw,1.4rem);line-height:1.5;color:var(--slate);max-width:36em;margin:0 auto 2rem;text-wrap:pretty}
.cta{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;font-size:1rem;font-weight:600;padding:.8rem 1.35rem;border-radius:999px;border:1.5px solid var(--blue);color:var(--blue);background:transparent;cursor:pointer;line-height:1.1}
.btn:hover{background:var(--ice);text-decoration:none}
.btn.primary{background:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-deep);border-color:var(--blue-deep)}
.btn.small{font-size:.88rem;padding:.5rem .95rem;border-width:1px}
.btn.quiet{border-color:var(--line);color:var(--ink)}
.btn.quiet:hover{background:var(--mist)}

.cable{display:block;width:100%;max-width:1120px;height:auto;margin:2.5rem auto 0;overflow:visible}
.cable .wire{fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round}
.cable .flow{fill:none;stroke:var(--blue);stroke-width:3;stroke-linecap:round;stroke-dasharray:2 22;animation:flow 1.6s linear infinite}
.cable .unit{fill:var(--white);stroke:var(--ink);stroke-width:2.5}
.cable .screen{fill:var(--ice);stroke:none}
.cable .glow{fill:var(--blue)}
.cable .car{fill:none;stroke:var(--ink);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
.cable .soc-bg{fill:var(--mist);stroke:var(--line);stroke-width:1.5}
.cable .soc{fill:var(--blue)}
.cable text{font-family:var(--font);fill:var(--slate);font-size:13px}
.cable .soc-t{fill:var(--ink);font-weight:650;font-size:14px}
@keyframes flow{to{stroke-dashoffset:-48}}

.band{padding:5.5rem 0}
.band.mist{background:var(--mist)}
.band h2{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.06;letter-spacing:-.03em;font-weight:680;margin:0 0 .8rem;text-wrap:balance}
.band .lead{font-size:1.2rem;color:var(--slate);max-width:38em;margin:0 0 2.8rem}

.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:2.5rem;border-top:1px solid var(--line);padding-top:2.2rem}
.fact b{display:block;font-size:clamp(2.4rem,4.6vw,3.6rem);font-weight:680;letter-spacing:-.04em;line-height:1;margin-bottom:.8rem;font-variant-numeric:tabular-nums}
.fact p{margin:0 0 .7rem;color:var(--slate);font-size:1.02rem}
.fact a{font-weight:600;font-size:.98rem}
@media (max-width:820px){.facts{grid-template-columns:1fr;gap:2rem}}

.path{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.path li{border-bottom:1px solid var(--line)}
.path a{display:grid;grid-template-columns:3.2rem 1fr auto;gap:1.2rem;align-items:baseline;padding:1.5rem 0;color:var(--ink)}
.path a:hover{text-decoration:none}
.path a:hover .pt{color:var(--blue)}
.path .pn{font-size:1rem;color:var(--slate);font-variant-numeric:tabular-nums;font-weight:500}
.path .pt{font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:650;letter-spacing:-.02em;display:block;line-height:1.2;transition:color .15s}
.path .pd{display:block;color:var(--slate);font-size:1.02rem;margin-top:.3rem;max-width:40em}
.path .pm{color:var(--slate);font-size:.9rem;white-space:nowrap}
@media (max-width:640px){.path a{grid-template-columns:2rem 1fr}.path .pm{display:none}}

.tiles{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:auto auto;gap:1.2rem}
.tile{border-radius:var(--r-l);padding:2rem;background:var(--white);border:1px solid var(--line);color:var(--ink);display:flex;flex-direction:column;gap:.6rem;min-height:210px}
.tile:hover{text-decoration:none;border-color:var(--blue)}
.tile.big{grid-row:span 2;background:var(--ink);color:var(--white);border-color:var(--ink)}
.tile.big:hover{border-color:var(--blue)}
.tile.big p{color:color-mix(in srgb,var(--white) 72%,transparent)}
.tile h3{margin:0;font-size:1.5rem;font-weight:650;letter-spacing:-.02em}
.tile p{margin:0;color:var(--slate);font-size:1.02rem;max-width:30em}
.tile .go{margin-top:auto;font-weight:600;color:var(--blue);font-size:.98rem}
.tile.big .go{color:#8FB3FF}
.tile svg{width:100%;max-width:340px;height:auto;margin:.6rem 0 .4rem}
@media (max-width:820px){.tiles{grid-template-columns:1fr}.tile.big{grid-row:auto}}

.minibars{display:grid;gap:.7rem;max-width:760px}
.mb{display:grid;grid-template-columns:13rem 1fr 3.2rem;gap:1rem;align-items:center;font-size:.95rem}
.mb .t{height:12px;background:var(--mist);border-radius:999px;overflow:hidden}
.band.mist .mb .t{background:var(--white)}
.mb .t b{display:block;height:100%;width:0;background:var(--blue);border-radius:999px;transition:width 1.1s cubic-bezier(.2,.7,.2,1)}
.mb .n{text-align:right;font-weight:650;font-variant-numeric:tabular-nums}
@media (max-width:640px){.mb{grid-template-columns:1fr 3rem}.mb .t{grid-column:1/-1;grid-row:2}}

.aboutteaser{display:grid;grid-template-columns:auto 1fr;gap:2rem;align-items:center;max-width:820px}
@media (max-width:640px){.aboutteaser{grid-template-columns:1fr}}

/* ---------- Page heads ---------- */
.tool-head{max-width:1120px;margin:0 auto;padding:4rem 1.25rem 2rem}
.tool-head h1{font-size:clamp(2.4rem,5.4vw,4.2rem);line-height:1.03;letter-spacing:-.035em;font-weight:680;margin:0 0 1rem;max-width:18ch;text-wrap:balance}
.tool-head p{font-size:clamp(1.12rem,1.8vw,1.3rem);color:var(--slate);max-width:36em;margin:0 0 .6rem;text-wrap:pretty}
@media (max-width:640px){.tool-head{padding:2.6rem 1rem 1.4rem}}

/* ---------- Prose ---------- */
.prose{max-width:720px;margin:0 auto;padding:0 1.25rem 2rem}
.prose h2{font-size:clamp(1.7rem,3.2vw,2.35rem);line-height:1.1;letter-spacing:-.028em;font-weight:680;margin:4rem 0 1rem;text-wrap:balance}
.prose h3{font-size:1.22rem;font-weight:650;letter-spacing:-.012em;margin:2.2rem 0 .5rem}
.prose p{margin:0 0 1.15rem}
.prose ul,.prose ol{padding-left:1.25rem;margin:0 0 1.4rem}
.prose li{margin:.45rem 0}
.prose li::marker{color:var(--blue)}
.prose strong{font-weight:650}
.toc{display:flex;flex-wrap:wrap;gap:.45rem;list-style:none;padding:0 !important;margin:0 0 1rem !important}
.toc li{margin:0 !important}
.toc a{display:inline-block;font-size:.88rem;padding:.38rem .85rem;border-radius:999px;background:var(--mist);color:var(--ink)}
.toc a:hover{background:var(--ice);text-decoration:none}
.note{background:var(--ice);border-radius:var(--r-m);padding:1.2rem 1.4rem;margin:1.8rem 0}
.note p{margin:0}
.note p + p{margin-top:.6rem}
.note strong{color:var(--blue-deep)}
.scroll{overflow-x:auto;margin:1.2rem 0 1.6rem;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:.95rem;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:.7rem .8rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:650;font-size:.85rem;color:var(--slate);white-space:nowrap}
.gloss{margin:0}
.gloss dt{font-weight:650;margin-top:1.2rem}
.gloss dd{margin:.2rem 0 0;color:var(--ink)}
.qa{margin:.4rem 0 1.8rem}
.qa dt{font-weight:650;margin-top:1.3rem}
.qa dd{margin:.3rem 0 0;color:var(--slate)}
.qa dd span{font-size:.8rem;font-weight:650;color:var(--blue);margin-right:.45rem}
.fh{font-size:.88rem;color:var(--slate);line-height:1.45}
p.fh{margin:.2rem 0 1rem}
.nextpage{max-width:720px;margin:2rem auto 0;padding:2rem 1.25rem 0;border-top:1px solid var(--line)}
.nextpage a{display:block;color:var(--ink)}
.nextpage a:hover{text-decoration:none}
.nextpage small{display:block;color:var(--slate);font-size:.9rem;margin-bottom:.2rem}
.nextpage b{font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:650;letter-spacing:-.02em;color:var(--blue)}


.read .tool-head{max-width:720px}
.prose{padding-bottom:.5rem}
.fig{margin:2rem auto}
/* ---------- Figures and diagrams ---------- */
.fig{max-width:1000px;margin:2.5rem auto;padding:0 1.25rem}
.fig-in{background:var(--mist);border-radius:var(--r-l);padding:1.8rem}
@media (max-width:640px){.fig-in{padding:1.1rem;border-radius:var(--r-m)}}
.fig-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.2rem}
.fig-top h3{margin:0;font-size:1.15rem;font-weight:650;letter-spacing:-.01em}
.fig-cap{font-size:.98rem;color:var(--slate);margin:1rem 0 0;max-width:46em;min-height:3em}
.seg{display:inline-flex;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:3px}
.seg button{border:0;background:transparent;color:var(--slate);font-size:.88rem;font-weight:600;padding:.4rem 1rem;border-radius:999px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--white)}
.pp{width:100%;height:auto;display:block}
.pp .node{fill:var(--white);stroke:var(--line);stroke-width:1.5}
.pp .node.hot{stroke:var(--blue);stroke-width:2.5}
.pp .node.dim{opacity:.35}
.pp .carbox{fill:none;stroke:var(--slate);stroke-width:1.5;stroke-dasharray:5 5}
.pp text{font-family:var(--font);fill:var(--ink);font-size:14px;font-weight:600}
.pp text.sub{fill:var(--slate);font-size:12px;font-weight:500}
.pp .w{fill:none;stroke:var(--line);stroke-width:3;stroke-linecap:round}
.pp .wf{fill:none;stroke:var(--blue);stroke-width:3;stroke-linecap:round;stroke-dasharray:2 16;animation:flow 1.4s linear infinite}
.pp .off{opacity:.12}
.pp .off.wf{animation:none}
.legend{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;font-size:.86rem;color:var(--slate);margin-top:.6rem}
.legend i{display:inline-block;width:16px;height:10px;margin-right:.45rem;vertical-align:middle;border-radius:3px}

.stepper .lanes{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:1.1rem}
.stepper .lane{font-size:.85rem;font-weight:600;padding:.35rem .8rem;border-radius:999px;background:var(--white);color:var(--slate);border:1px solid var(--line);transition:all .25s}
.stepper .lane.on{background:var(--blue);border-color:var(--blue);color:#fff}
.stepper .rail{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:6px;margin-bottom:1.2rem}
.stepper .rail button{border:0;cursor:pointer;background:transparent;padding:0;text-align:left;color:var(--slate);font-size:.78rem;font-weight:600}
.stepper .rail button i{display:block;height:6px;border-radius:999px;background:var(--line);margin-bottom:.4rem;transition:background .3s}
.stepper .rail button.done i{background:color-mix(in srgb,var(--blue) 45%,var(--line))}
.stepper .rail button[aria-current="step"] i{background:var(--blue)}
.stepper .rail button[aria-current="step"]{color:var(--ink)}
.stepper .card{background:var(--white);border-radius:var(--r-m);padding:1.3rem 1.4rem;min-height:9.5rem}
.stepper .card h4{margin:0 0 .45rem;font-size:1.2rem;font-weight:650;letter-spacing:-.01em}
.stepper .card p{margin:0;color:var(--ink)}
.stepper .card .brk{margin-top:.8rem;padding:.6rem .8rem;border-radius:var(--r-s);background:var(--amber-soft);font-size:.94rem}
.stepper .card .brk b{color:var(--ink)}
.stepper .ctl{display:flex;gap:.5rem;margin-top:1rem;align-items:center}
.stepper .ctl .count{margin-left:auto;font-size:.88rem;color:var(--slate);font-variant-numeric:tabular-nums}
@media (max-width:640px){.stepper .rail button span{display:none}}

.bw{width:100%;height:auto;display:block}
.bw .grid{stroke:var(--line);stroke-width:1}
.bw .ax{fill:var(--slate);font-family:var(--font);font-size:12px}
.bw .under{fill:var(--band)}
.bw .over{fill:var(--amber);opacity:.55}
.bw .curve{fill:none;stroke:var(--ink);stroke-width:2.5}
.bw .lim{stroke:var(--blue);stroke-width:2;stroke-dasharray:6 5}
.bw .limt{fill:var(--blue);font-family:var(--font);font-size:12px;font-weight:650}
.bwctl{display:grid;grid-template-columns:auto 1fr auto;gap:1rem;align-items:center;margin-top:1rem;font-size:.95rem}
.bwctl output{font-weight:650;font-variant-numeric:tabular-nums;min-width:5.5rem;text-align:right}
input[type=range]{width:100%;accent-color:var(--blue)}
.bwout{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.2rem}
.bwout div{background:var(--white);border-radius:var(--r-m);padding:.9rem 1rem}
.bwout b{display:block;font-size:1.5rem;font-weight:680;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.bwout span{font-size:.85rem;color:var(--slate)}
@media (max-width:640px){.bwout{grid-template-columns:1fr}}

/* ---------- The bill ---------- */
.bill{margin:2rem 0;background:var(--white);border:1px solid var(--line);border-radius:var(--r-l);padding:1.6rem 1.6rem 1.3rem;font-variant-numeric:tabular-nums;box-shadow:0 30px 60px -40px rgba(13,31,54,.35)}
.bill-head{display:flex;flex-direction:column;padding-bottom:.8rem;margin-bottom:.3rem;border-bottom:1px solid var(--line)}
.bill-head strong{font-size:1.05rem;font-weight:650}
.bill-head span{font-size:.9rem;color:var(--slate)}
.bill-rows{margin:0}
.bill-rows div{display:flex;justify-content:space-between;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--line);font-size:.98rem}
.bill-rows dt{color:var(--slate)}
.bill-rows dd{margin:0;font-weight:600;text-align:right;white-space:nowrap}
.bill-rows .total dt{color:var(--ink);font-weight:650}
.bill-rows .total dd{font-size:1.15rem;font-weight:700}
.bill-rows .perkwh{border:0;margin-top:.5rem;padding:.8rem 1rem;background:var(--amber-soft);border-radius:var(--r-m)}
.bill-rows .perkwh dt{color:var(--ink);font-weight:600}
.bill-rows .perkwh dd{font-size:1.6rem;font-weight:700;letter-spacing:-.02em}
.bill-slider{display:block;margin-top:1.2rem;font-size:.95rem}
.bill-slider span{display:block;margin-bottom:.4rem}
.bill-slider output{font-weight:700}
.bill figcaption{font-size:.9rem;color:var(--slate);margin-top:.6rem}

/* ---------- Benchmarks ---------- */
.bench-wrap{max-width:1120px;margin:0 auto;padding:0 1.25rem}
.bench{display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin:1rem 0 1rem}
.bcard{border-radius:var(--r-l);background:var(--mist);padding:1.5rem;display:flex;flex-direction:column}
.bcard h3{margin:0;font-size:1.15rem;font-weight:650;letter-spacing:-.01em}
.bcard .reg{color:var(--slate);font-size:.88rem;margin:.2rem 0 1rem}
.bcard .hero-n{font-size:2.8rem;font-weight:680;letter-spacing:-.04em;line-height:1;display:block;font-variant-numeric:tabular-nums}
.bcard .hero-l{font-size:.85rem;color:var(--slate);display:block;margin:.3rem 0 1rem}
.bcard dl{display:grid;grid-template-columns:1fr auto;gap:.3rem .6rem;margin:0 0 1rem;font-size:.9rem;font-variant-numeric:tabular-nums}
.bcard dt{color:var(--slate)} .bcard dd{margin:0;font-weight:600;text-align:right}
.bcard p{font-size:.98rem;line-height:1.5;margin:0 0 1.1rem}
.bcard .btn{margin-top:auto;align-self:flex-start}

/* ---------- Tools ---------- */
.tool{max-width:1120px;margin:0 auto;padding:1rem 1.25rem 2rem;display:grid;grid-template-columns:minmax(300px,380px) 1fr;gap:3rem;align-items:start}
@media (max-width:920px){.tool{grid-template-columns:1fr;gap:2rem}}
@media (max-width:640px){.tool{padding:.5rem 1rem 2rem}}
.inputs{font-size:.95rem;background:var(--mist);border-radius:var(--r-l);padding:.4rem 1.2rem 1.2rem;position:sticky;top:120px;max-height:calc(100vh - 140px);overflow:auto}
@media (max-width:920px){.inputs{position:static;max-height:none}}
.inputs details{border-bottom:1px solid var(--line);padding:0 0 .6rem}
.inputs details:last-of-type{border-bottom:0}
.inputs summary{cursor:pointer;font-weight:650;font-size:1rem;padding:.9rem 0 .5rem;list-style:none;display:flex;justify-content:space-between;align-items:center}
.inputs summary::-webkit-details-marker{display:none}
.inputs summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--slate);border-bottom:2px solid var(--slate);transform:rotate(45deg) translateY(-3px);transition:transform .2s}
.inputs details[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.fld{display:grid;grid-template-columns:1fr 9.5rem;gap:.25rem .75rem;align-items:center;margin:.6rem 0}
.fld.wide{grid-template-columns:1fr}
.fl{color:var(--ink);font-size:.92rem}
.fi{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;background:var(--white)}
.fi:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px var(--ice)}
.fi input,.fi select{font:inherit;font-size:.95rem;font-variant-numeric:tabular-nums;border:0;background:transparent;color:var(--ink);padding:.5rem .6rem;width:100%;min-width:0;text-align:right}
.fi select{text-align:left;cursor:pointer}
.fi input[type=text]{text-align:left}
.fi input[type=file]{font-size:.85rem;text-align:left;padding:.45rem}
.fi input:focus,.fi select:focus{outline:none}
.u{color:var(--slate);font-size:.78rem;padding-right:.6rem;white-space:nowrap}
.fld .fh{grid-column:1/-1;margin-top:-.05rem}
.tool-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.tool-actions .btn{font-size:.9rem;padding:.55rem 1rem;border-width:1px}
.results{min-width:0}
.kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;font-variant-numeric:tabular-nums}
.kpi{background:var(--mist);border-radius:var(--r-m);padding:1.1rem 1.2rem}
.kpi .v{font-size:clamp(1.5rem,2.8vw,2rem);font-weight:680;letter-spacing:-.03em;line-height:1.1;display:block}
.kpi .l{font-size:.85rem;color:var(--slate);display:block;margin-top:.35rem;line-height:1.35}
.kpi .v.neg{color:var(--neg)} .kpi .v.pos{color:var(--pos)}
@media (max-width:560px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem}}
.verdict{font-size:1.15rem;line-height:1.55;margin:1.6rem 0 .4rem;max-width:40em}
.verdict strong{font-weight:680}
.panel{margin-top:2.6rem}
.panel h2{font-size:1.25rem;font-weight:650;letter-spacing:-.01em;margin:0 0 .3rem}
.panel p.sub{color:var(--slate);margin:0 0 1rem;font-size:.98rem}
.chart{width:100%;height:auto;display:block;overflow:visible}
.chart .grid{stroke:var(--line);stroke-width:1}
.chart .axis{fill:var(--slate);font-family:var(--font);font-size:12px}
.chart .zero{stroke:var(--ink);stroke-width:1.2}
.chart .band{fill:var(--band)}
.chart .line{fill:none;stroke:var(--blue);stroke-width:2.5}
.chart .cap{fill:none;stroke:var(--amber);stroke-width:2;stroke-dasharray:5 4}
.chart .dot{fill:var(--blue)}
.chart .dot.neg{fill:var(--neg)}
.chart .lbl{fill:var(--ink);font-family:var(--font);font-size:12px;font-weight:650}
.bars{display:grid;gap:.55rem}
.bar{display:grid;grid-template-columns:11rem 1fr 5.5rem;gap:.9rem;align-items:center;font-size:.92rem;font-variant-numeric:tabular-nums}
.bar .t{background:var(--mist);height:12px;border-radius:999px;overflow:hidden}
.bar .t b{display:block;height:100%;background:var(--blue);border-radius:999px}
.bar.hot .t b{background:var(--amber)}
.bar .n{text-align:right;font-weight:650}
@media (max-width:560px){.bar{grid-template-columns:1fr 5rem}.bar .t{grid-column:1/-1;grid-row:2}}
.sens td,.sens th{text-align:right;white-space:nowrap}
.sens th:first-child,.sens td:first-child{text-align:left}
.sens td.p{color:var(--pos);font-weight:650}
.sens td.n{color:var(--neg)}
.sens td.base{background:var(--ice);font-weight:700}
details.years summary{cursor:pointer;font-weight:650;margin-top:2rem}
.flag{font-size:.95rem;background:var(--amber-soft);color:var(--ink);padding:.7rem .95rem;border-radius:var(--r-s);margin-top:1rem}
.empty{padding:2rem 0;font-size:1.15rem;color:var(--slate)}
.status{font-size:.88rem;line-height:1.45;color:var(--slate);background:var(--white);border-radius:var(--r-s);padding:.6rem .8rem;margin-top:.8rem}
.status.ok{color:var(--ink);box-shadow:inset 3px 0 0 var(--blue)}
.chip{display:inline-block;font-size:.8rem;font-weight:650;padding:.18rem .6rem;border-radius:999px;white-space:nowrap}
.chip.g3{background:var(--blue);color:#fff} .chip.g2{background:var(--ice);color:var(--blue-deep)}
.chip.g1{background:var(--amber-soft);color:var(--ink);box-shadow:inset 0 0 0 1px var(--amber)} .chip.g0{background:var(--neg);color:#fff}
.chip.gn{background:var(--mist);color:var(--slate)}
.recs{padding-left:1.2rem;margin:.4rem 0 0}
.recs li{margin:.55rem 0}
.recs li::marker{color:var(--blue)}

/* ---------- About ---------- */
.about{max-width:1120px;margin:0 auto;padding:4rem 1.25rem 2rem;display:grid;grid-template-columns:320px 1fr;gap:4rem;align-items:start}
@media (max-width:860px){.about{grid-template-columns:1fr;gap:2rem;padding-top:2.6rem}}
.portrait{width:100%;aspect-ratio:4/5;border-radius:var(--r-l);background:linear-gradient(160deg,var(--ice),var(--mist));display:flex;align-items:center;justify-content:center;overflow:hidden;position:sticky;top:130px}
.portrait img{width:100%;height:100%;object-fit:cover}
.portrait span{font-size:5rem;font-weight:680;color:var(--blue);letter-spacing:-.04em}
@media (max-width:860px){.portrait{max-width:260px;position:static}}
.about h1{font-size:clamp(2.4rem,5vw,3.8rem);line-height:1.03;letter-spacing:-.035em;font-weight:680;margin:0 0 1.2rem}
.about .lede{font-size:1.3rem;line-height:1.5;color:var(--slate);margin:0 0 2rem}
.about p{margin:0 0 1.15rem;max-width:40em}
.about h2{font-size:1.5rem;font-weight:650;letter-spacing:-.02em;margin:2.8rem 0 .8rem}
.timeline{list-style:none;padding:0;margin:0 0 1rem;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 1.3rem 1.4rem}
.timeline li::before{content:"";position:absolute;left:-7px;top:.45rem;width:12px;height:12px;border-radius:50%;background:var(--white);border:2px solid var(--blue)}
.timeline b{display:block;font-weight:650}
.timeline span{color:var(--slate);font-size:.98rem}
.links{display:flex;flex-wrap:wrap;gap:.6rem;margin:.4rem 0 1.4rem}
.contact{background:var(--mist);border-radius:var(--r-l);padding:1.6rem;max-width:560px}
.contact label{display:block;font-size:.9rem;font-weight:600;margin:.8rem 0 .3rem}
.contact input,.contact textarea{width:100%;font:inherit;font-size:1rem;padding:.65rem .8rem;border-radius:10px;border:1px solid var(--line);background:var(--white);color:var(--ink)}
.contact textarea{min-height:130px;resize:vertical}
.contact input:focus,.contact textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--ice)}
.contact .btn{margin-top:1rem}

.print-only{display:none}
.sharebox{display:block;width:100%;margin-top:.5rem;font:inherit;font-size:.82rem;padding:.45rem .6rem;border:1px solid var(--line);border-radius:8px;background:var(--mist);color:var(--ink)}
table.assume td{padding:.3rem .6rem;font-size:.85rem}
table.assume td:last-child{text-align:right;font-weight:600}
@media print{
  .inputs,.results-actions,#p-act-status,#f-act-status,.tool-head p,.nextpage{display:none !important}
  .tool{display:block;padding:0}
  .tool-head{padding:0 0 .5rem}
  .tool-head h1{font-size:18pt}
  .print-only{display:block;margin-bottom:1rem}
  .print-only h1{font-size:16pt;margin:0 0 .2rem}
  .kpis{grid-template-columns:repeat(3,1fr)}
  .kpi,.panel,.bar,tr{break-inside:avoid}
  .kpi{background:#f3f5f8}
}
/* ---------- New diagrams ---------- */
.ccv,.msgv{width:100%;height:auto;display:block;overflow:visible}
.ccv .grid{stroke:var(--line);stroke-width:1}
.ccv .ax{fill:var(--slate);font-family:var(--font);font-size:12px}
.ccv .ghost{fill:none;stroke:var(--line);stroke-width:3;stroke-dasharray:4 5}
.ccv .fillarea{fill:var(--band);stroke:var(--blue);stroke-width:2.5}
.ccv .mk{fill:var(--blue);stroke:var(--white);stroke-width:3}
.ccread{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1rem}
.ccread div{background:var(--white);border-radius:var(--r-m);padding:.8rem 1rem}
.ccread b{display:block;font-size:1.6rem;font-weight:680;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.ccread span{font-size:.85rem;color:var(--slate)}
.wfwrap{position:relative;padding-top:1.8rem;margin-bottom:.8rem}
.wfbar,.stack{display:flex;height:34px;border-radius:10px;overflow:hidden;background:var(--white)}
.wfbar span,.stack span{display:block;height:100%;transition:width .35s cubic-bezier(.2,.7,.2,1)}
.wfprice{position:absolute;top:0;bottom:-6px;width:0;border-left:2px dashed var(--ink);transition:left .3s}
.wfprice span{position:absolute;top:0;left:6px;font-size:.8rem;font-weight:650;white-space:nowrap}
.stackkey{display:flex;flex-wrap:wrap;gap:.45rem 1.2rem;font-size:.88rem;color:var(--slate);margin:.4rem 0 .6rem}
.stackkey i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:.4rem;vertical-align:middle}
.stackkey b{color:var(--ink);font-weight:650;margin-left:.2rem;font-variant-numeric:tabular-nums}
.msgv .lk{stroke:var(--line);stroke-width:3;stroke-dasharray:2 8;stroke-linecap:round}
.msgv .nd{fill:var(--white);stroke:var(--ink);stroke-width:2}
.msgv .ndt{fill:var(--ink);font-family:var(--font);font-size:14px;font-weight:600}
.msgv .gl{fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round}
.msgv .gf{fill:var(--blue);stroke:none}
.msgv .pk{fill:var(--blue)}
.msgv .x{fill:var(--neg);font-family:var(--font);font-size:26px;font-weight:700}
.msgv .bars .on{fill:var(--blue)} .msgv .bars .off{fill:var(--line)}
.lyrgrid{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:1.5rem;align-items:start}
@media (max-width:720px){.lyrgrid{grid-template-columns:1fr}}
.lyr{display:flex;flex-direction:column;gap:6px}
.lyr button{font:inherit;font-size:.98rem;font-weight:600;text-align:left;padding:.85rem 1.1rem;border-radius:12px;border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer;margin-left:calc(var(--i) * 6px);transition:transform .2s,background .2s,color .2s}
.lyr button:first-child{background:var(--ink);color:var(--white);border-color:var(--ink)}
.lyr button[aria-pressed="true"]{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateX(6px)}
.lyr-d{background:var(--white);border-radius:var(--r-m);padding:1.2rem 1.3rem;min-height:9rem}
.lyr-d h4{margin:0 0 .4rem;font-size:1.15rem;font-weight:650}
.lyr-d p{margin:0}
.bvgrid{display:grid;grid-template-columns:minmax(260px,330px) 1fr;gap:1.6rem;align-items:start}
@media (max-width:820px){.bvgrid{grid-template-columns:1fr}}
.bvin{background:var(--white);border-radius:var(--r-m);padding:.4rem 1rem 1rem;font-size:.92rem}
.bvin h4{margin:1rem 0 .2rem;font-size:.95rem;font-weight:650}
.bvin details summary{cursor:pointer;font-weight:600;margin-top:.8rem;font-size:.92rem}
.chk{display:flex;gap:.55rem;align-items:center;margin:.55rem 0;font-size:.92rem;cursor:pointer}
.chk input{width:18px;height:18px;accent-color:var(--blue);flex:none}
.kpis2{grid-template-columns:repeat(2,minmax(0,1fr))}
.kpis2 .kpi{background:var(--white)}
.stack{margin:1.2rem 0 .3rem}
.chart .cuLine{stroke:var(--amber)}
@media (min-width:821px){.tiles{grid-template-columns:repeat(4,1fr);grid-template-rows:auto}.tile.big{grid-column:1/-1;grid-row:auto;display:grid;grid-template-columns:1fr 1fr;column-gap:3rem;align-items:center;min-height:0}.tile.big h3,.tile.big p,.tile.big .go{grid-column:1}.tile.big svg{grid-column:2;grid-row:1/4;margin:0;max-width:420px;justify-self:end}}
@media (max-width:640px){.bwctl{grid-template-columns:1fr auto}.bwctl input{grid-column:1/-1;grid-row:2}.ccread b{font-size:1.25rem}}

/* ---------- Motion and tool illustrations ---------- */
:root{--s-concrete:#CDD5DE; --s-asphalt:#3E4756; --s-soil:#C9B79C}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){--s-concrete:#55606F; --s-asphalt:#7A8494; --s-soil:#7D6B52} }
:root[data-theme="dark"]{--s-concrete:#55606F; --s-asphalt:#7A8494; --s-soil:#7D6B52}
.bar .t b{transition:width .5s cubic-bezier(.2,.7,.2,1)}
.chart .line.draw{stroke-dasharray:1;stroke-dashoffset:1;animation:drawline 1.1s cubic-bezier(.4,0,.2,1) forwards}
@keyframes drawline{to{stroke-dashoffset:0}}
.sitemap{background:var(--mist);border-radius:var(--r-l);padding:1.2rem 1.2rem .8rem;margin:0 0 1.4rem}
.smap{width:100%;height:auto;display:block;overflow:visible}
.smap .ground{stroke:var(--line);stroke-width:2}
.smap .bldg{fill:var(--white);stroke:var(--ink);stroke-width:2}
.smap .eroom{fill:var(--ice);stroke:var(--blue);stroke-width:1.5}
.smap .eglyph{stroke:var(--blue);stroke-width:2;stroke-linecap:round;fill:none}
.smap .mt{fill:var(--ink);font-family:var(--font);font-size:14px;font-weight:650}
.smap .ms{fill:var(--slate);font-family:var(--font);font-size:12px}
.smap .warnb{fill:var(--amber-soft);stroke:var(--amber)}
.smap .warnt{fill:var(--ink);font-family:var(--font);font-size:11.5px;font-weight:600}
.smap .boreband{fill:none;stroke:var(--slate);stroke-width:1.2;stroke-dasharray:4 4}
.smap .cab{fill:none;stroke:var(--blue-deep);stroke-linecap:round;stroke-linejoin:round;opacity:.9}
.smap .cabf{fill:none;stroke:var(--sky);stroke-linecap:round;stroke-dasharray:2 14;animation:flow 1.3s linear infinite}
.smap .brk{fill:none;stroke:var(--slate);stroke-width:1.2}
.smap .lpanel{fill:var(--white);stroke:var(--blue);stroke-width:1.8}
.smap .br{fill:none;stroke:var(--blue-deep);stroke-width:2;opacity:.7}
.smap .chg{fill:var(--white);stroke:var(--ink);stroke-width:1.8}
.smap .chg.dc{fill:var(--ink)}
.smap .chgled{fill:var(--blue)}
.smleg{margin-top:.2rem}
@media (max-width:640px){.sitemap{overflow-x:auto;-webkit-overflow-scrolling:touch}.smap{min-width:600px}}
.legend i.lg-bore{border:1.5px dashed var(--slate)}
.funnel{background:var(--mist);border-radius:var(--r-l);padding:1.2rem 1.3rem;margin:0 0 1.4rem}
.fnrow{display:grid;grid-template-columns:13rem 1fr 6rem;gap:1rem;align-items:center;margin:.45rem 0;font-size:.95rem}
.fnbar{height:16px;background:var(--white);border-radius:999px;overflow:hidden}
.fnbar b{display:block;height:100%;border-radius:999px;transition:width .6s cubic-bezier(.2,.7,.2,1)}
.fnbar b.fn0{background:var(--slate)} .fnbar b.fn1{background:var(--sky)} .fnbar b.fn2{background:var(--blue)}
.fnv{text-align:right;font-weight:680;font-variant-numeric:tabular-nums}
@media (max-width:640px){.fnrow{grid-template-columns:1fr 5rem}.fnbar{grid-column:1/-1;grid-row:2}}
.gauges{margin:1.4rem 0 .4rem}
.gauge{margin:0 0 1.1rem}
.gh{display:flex;align-items:center;gap:.6rem;margin-bottom:.45rem;font-size:.95rem}
.gtrack{position:relative;height:14px;border-radius:999px;display:flex;overflow:visible}
.gz{height:100%}
.gz.z0{background:color-mix(in srgb,var(--neg) 55%,var(--white));border-radius:999px 0 0 999px}
.gz.z1{background:color-mix(in srgb,var(--amber) 60%,var(--white))}
.gz.z2{background:var(--sky)}
.gz.z3{background:var(--blue);border-radius:0 999px 999px 0}
.gmark{position:absolute;top:50%;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;background:var(--white);border:3px solid var(--ink);box-shadow:0 2px 6px rgba(0,0,0,.25);transition:left .55s cubic-bezier(.2,.7,.2,1)}
.gmark.ghost{background:transparent;border:2px dashed var(--ink);box-shadow:none;opacity:.7}
.gspan{position:absolute;top:50%;height:0;border-top:2px dashed var(--ink);opacity:.5}
.gl{font-size:.84rem;color:var(--slate);margin-top:.45rem}

.rehead{display:grid;grid-template-columns:14rem 1fr 11rem;gap:1.2rem;font-size:.82rem;color:var(--slate);margin-bottom:.3rem}
.rehead span:nth-child(2){text-align:center}
.rerow{display:grid;grid-template-columns:14rem 1fr 11rem;gap:1.2rem;align-items:center;padding:.9rem 0;border-top:1px solid var(--line)}
.rerow:first-child{border-top:0}
.rel b{display:block;font-weight:650;font-size:1.02rem}
.rel span{font-size:.85rem;color:var(--slate)}
.retrack{position:relative;height:22px;background:var(--white);border-radius:999px}
.reaxis{position:absolute;left:50%;top:-5px;bottom:-5px;border-left:2px solid var(--ink);opacity:.5}
.rebar{position:absolute;top:0;height:100%;transition:width .6s cubic-bezier(.2,.7,.2,1)}
.rebar.pos{background:var(--blue);border-radius:0 999px 999px 0}
.rebar.neg{background:var(--neg);border-radius:999px 0 0 999px;opacity:.85}
.reband{position:absolute;top:3px;bottom:3px;border-radius:999px;background:repeating-linear-gradient(135deg,var(--blue) 0 6px,var(--sky) 6px 12px);transition:left .6s cubic-bezier(.2,.7,.2,1),width .6s cubic-bezier(.2,.7,.2,1)}
.reref{background:var(--white);border-radius:var(--r-m);padding:.9rem 1rem !important;margin:.3rem -1rem;border-top:0 !important}
.rread{display:block;font-size:.85rem;color:var(--ink);margin-top:.2rem}
.rev b{display:block;font-size:1.25rem;font-weight:680;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.rev b.pv{color:var(--pos)} .rev b.nv{color:var(--neg)}
.rev span{display:block;font-size:.8rem;color:var(--slate);line-height:1.35}
@media (max-width:760px){.rehead{display:none}.rerow{grid-template-columns:1fr auto}.retrack{grid-column:1/-1;grid-row:2}}

.tl{width:100%;height:auto;display:block;overflow:visible}
.tl .tlg{stroke:var(--line);stroke-width:1}
.tl .tla{fill:var(--slate);font-family:var(--font);font-size:12px}
.tl .tll{fill:var(--ink);font-family:var(--font);font-size:13px;font-weight:600}
.tl .tln{fill:var(--neg);font-family:var(--font);font-size:13px;font-weight:600}
.tl .tlbg{fill:var(--white)}
.tl .tlb{fill:var(--blue);transform-box:fill-box;transform-origin:left center}
.tl .tlb.l2{fill:var(--sky)}
.tl.play .tlb{animation:tlin .45s cubic-bezier(.2,.7,.2,1) both;animation-delay:var(--d)}
@keyframes tlin{from{transform:scaleX(0);opacity:.2}to{transform:scaleX(1);opacity:1}}
.chart .winarea{fill:var(--band)}
.chart .tailarea{fill:var(--amber);opacity:.28}
.chart .knee{stroke:var(--slate);stroke-width:1.2;stroke-dasharray:4 4}
@media (prefers-reduced-motion: reduce){.tl.play .tlb{animation:none}}

/* ---------- More diagrams ---------- */
.r80track{position:relative;display:flex;height:40px;background:var(--white);border-radius:12px;overflow:hidden}
.r80a{background:var(--blue);height:100%}
.r80b{background:var(--amber);height:100%}
.r80meta{display:flex;justify-content:space-between;align-items:baseline;margin:.9rem 0 .5rem}
.r80meta b{font-size:2rem;font-weight:680;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.r80meta span{color:var(--slate);font-size:.9rem}
.r80lg{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;font-size:.9rem;margin-top:.7rem}
.r80lg i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:.45rem;vertical-align:-1px}
.fslots{display:grid;grid-template-columns:repeat(6,1fr);gap:.8rem;margin:.4rem 0 1rem}
.fslot{text-align:center;font-size:.85rem;color:var(--slate);font-variant-numeric:tabular-nums}
.fslot.on{color:var(--ink);font-weight:650}
.fcol{height:130px;background:var(--white);border-radius:12px;display:flex;align-items:flex-end;overflow:hidden;margin-bottom:.4rem;border:1px solid var(--line)}
.fcol b{display:block;width:100%;background:var(--blue);transition:height .5s cubic-bezier(.2,.7,.2,1)}
.fslot:not(.on) .fcol{border-style:dashed}
.rscgrid{display:grid;grid-template-columns:1fr 300px;gap:1.6rem;align-items:start}
@media (max-width:820px){.rscgrid{grid-template-columns:1fr}}
.rf{display:grid;grid-template-columns:1fr auto;gap:.6rem;align-items:center;padding:.55rem 0;border-bottom:1px solid var(--line);font-size:.95rem}
.rf:last-child{border-bottom:0}
@media (max-width:560px){.rf{grid-template-columns:1fr}}
.rf .seg button{padding:.35rem .7rem;font-size:.82rem}
.rgauge{background:var(--white);border-radius:var(--r-l);padding:1.2rem;text-align:center}
.rgauge svg{width:100%;max-width:260px;height:auto;overflow:visible}
.rgauge .arc0{stroke:color-mix(in srgb,var(--neg) 55%,var(--white))} .rgauge .arc1{stroke:color-mix(in srgb,var(--amber) 60%,var(--white))}
.rgauge .arc2{stroke:var(--sky)} .rgauge .arc3{stroke:var(--blue)}
.rneedle{transform-origin:130px 130px;transition:transform .7s cubic-bezier(.3,1.4,.4,1)}
.rneedle line{stroke:var(--ink);stroke-width:4;stroke-linecap:round}
.rneedle circle{fill:var(--ink)}
.rtier{display:block;font-size:1.4rem;font-weight:680;letter-spacing:-.02em;margin-top:.3rem}
.rtxt{display:block;font-size:.92rem;color:var(--slate);margin-top:.35rem}
.rcost{display:block;font-size:.85rem;margin-top:.8rem;padding-top:.8rem;border-top:1px solid var(--line)}
.upgrid{display:grid;grid-template-columns:repeat(30,1fr);gap:3px;height:120px;align-items:end;margin:.4rem 0 .5rem}
.upc{height:100%;background:var(--white);border-radius:4px;display:flex;align-items:flex-end;overflow:hidden}
.upc b{display:block;width:100%;border-radius:4px}
.upc b.u{background:var(--blue)} .upc b.s{background:var(--sky)} .upc b.low{background:var(--neg)}
.upgrid.play .upc b{animation:upin .5s cubic-bezier(.2,.7,.2,1) both;animation-delay:var(--d);transform-origin:bottom}
@keyframes upin{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.upbig{display:block;font-size:2rem;font-weight:680;letter-spacing:-.03em;margin-top:.6rem}
.upsub{display:block;color:var(--slate);font-size:.95rem;max-width:40em}
.owsel{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.2rem}
.owsel button{font:inherit;font-size:.86rem;font-weight:600;padding:.45rem .9rem;border-radius:999px;border:1px solid var(--line);background:var(--white);color:var(--slate);cursor:pointer}
.owsel button[aria-pressed="true"]{background:var(--ink);color:var(--white);border-color:var(--ink)}
.owhead{display:grid;grid-template-columns:12rem 1fr;gap:1rem;font-size:.85rem;font-weight:650;color:var(--slate);margin-bottom:.3rem}
.owhead div{display:flex;justify-content:space-between}
.owrow{display:grid;grid-template-columns:12rem 1fr;gap:1rem;align-items:center;margin:.55rem 0;font-size:.95rem}
.owtrack{position:relative;height:40px;background:var(--white);border-radius:999px}
.owpill{position:absolute;top:4px;bottom:4px;display:flex;align-items:center;justify-content:center;border-radius:999px;font-size:.86rem;font-weight:650;color:#fff;transition:left .55s cubic-bezier(.3,1.2,.4,1),width .55s cubic-bezier(.3,1.2,.4,1),background .3s}
.owpill.h{left:4px;width:calc(50% - 6px);background:var(--blue-deep)}
.owpill.o{left:calc(50% + 2px);width:calc(50% - 6px);background:var(--blue)}
.owpill.m{left:4px;width:calc(100% - 8px);background:linear-gradient(90deg,var(--blue-deep),var(--blue))}
.ownote{margin:1rem 0 0;font-size:1rem}
@media (max-width:560px){.owrow,.owhead{grid-template-columns:1fr}.owhead span:first-child{display:none}}
@media (prefers-reduced-motion: reduce){.upgrid.play .upc b{animation:none}.rneedle,.owpill,.fcol b{transition:none}}

/* ---------- Paying for it ---------- */
.ways{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media (max-width:820px){.ways{grid-template-columns:1fr}}
.way{background:var(--white);border-radius:var(--r-l);padding:1.3rem;position:relative;border:1px solid transparent}
.way.rec{border-color:var(--blue)}
.waybadge{position:absolute;top:-11px;left:1.2rem;background:var(--blue);color:#fff;font-size:.75rem;font-weight:650;padding:.2rem .6rem;border-radius:999px}
.way h4{margin:0 0 .9rem;font-size:1.2rem;font-weight:680;letter-spacing:-.015em}
.wm{display:grid;grid-template-columns:9.5rem 1fr;gap:.6rem;align-items:center;margin:.45rem 0;font-size:.86rem;color:var(--slate)}
.wmt{height:8px;background:var(--mist);border-radius:999px;overflow:hidden}
.wmt b.cost{background:var(--amber)}
.wmt b{display:block;height:100%;background:var(--blue);border-radius:999px;transition:width .7s cubic-bezier(.2,.7,.2,1)}
.way p{margin:.9rem 0 0;font-size:.92rem;line-height:1.45}
.stsel{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.2rem}
.stsel button{font:inherit;font-size:.86rem;font-weight:600;padding:.45rem .9rem;border-radius:999px;border:1px solid var(--line);background:var(--white);color:var(--slate);cursor:pointer}
.stsel button[aria-pressed="true"]{background:var(--ink);color:var(--white);border-color:var(--ink)}
.strow{margin:.6rem 0 1rem}
.strow .stl{display:block;font-size:.88rem;font-weight:650;margin-bottom:.35rem}
.strow .stack{height:40px;margin:0 0 .5rem}
.chkhead{display:grid;grid-template-columns:auto 1fr;gap:1.2rem;align-items:center;margin-bottom:1rem}
.chkhead b{display:block;font-size:2rem;font-weight:680;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.chkhead span{font-size:.88rem;color:var(--slate)}
.chkbar{height:12px;background:var(--white);border-radius:999px;overflow:hidden}
.chkbar b{display:block;height:100%;width:0;background:var(--blue);border-radius:999px;transition:width .45s cubic-bezier(.2,.7,.2,1)}
.chklist{display:grid;grid-template-columns:1fr 1fr;gap:1rem 2rem}
@media (max-width:820px){.chklist{grid-template-columns:1fr}}
.chkg h4{margin:.4rem 0 .4rem;font-size:1rem;font-weight:650}
.chkit{display:flex;gap:.6rem;align-items:flex-start;padding:.45rem .6rem;border-radius:10px;cursor:pointer;font-size:.95rem;line-height:1.4}
.chkit:hover{background:var(--white)}
.chkit input{width:18px;height:18px;margin-top:.15rem;accent-color:var(--blue);flex:none}
.chkit input:checked + span{color:var(--slate);text-decoration:line-through;text-decoration-color:var(--line)}
@media (min-width:821px){.tiles{grid-template-columns:repeat(3,1fr) !important}}

.sch{margin:.2rem 0 .7rem;font-size:1rem;font-weight:650}
.pvlegend{display:flex;gap:1.2rem;font-size:.85rem;color:var(--slate);margin:-.3rem 0 .6rem}
.pvlegend i{display:inline-block;vertical-align:middle;margin-right:.4rem}
.lgdot{width:12px;height:12px;border-radius:50%;background:var(--ink)}
.lgbe{width:3px;height:14px;background:var(--blue)}
.pvrow{display:grid;grid-template-columns:15rem 1fr 13rem;gap:1rem;align-items:center;padding:.7rem 0;border-top:1px solid var(--line)}
.pvl b{display:block;font-weight:650;font-size:.98rem}
.pvl span{font-size:.84rem;color:var(--slate)}
.pvtrack{position:relative;height:16px;background:var(--white);border-radius:999px}
.pseg{position:absolute;top:3px;bottom:3px;border-radius:999px;transition:left .55s cubic-bezier(.2,.7,.2,1),width .55s cubic-bezier(.2,.7,.2,1)}
.pseg.ok{background:color-mix(in srgb,var(--pos) 55%,var(--white))}
.pseg.short{background:color-mix(in srgb,var(--amber) 70%,var(--white))}
.pbe{position:absolute;top:-5px;bottom:-5px;width:3px;margin-left:-1.5px;background:var(--blue);border-radius:2px;transition:left .55s cubic-bezier(.2,.7,.2,1)}
.pdot{position:absolute;top:50%;width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;background:var(--ink);border:3px solid var(--white);box-shadow:0 1px 4px rgba(0,0,0,.3);transition:left .55s cubic-bezier(.2,.7,.2,1)}
.pvv{font-size:.84rem;line-height:1.35}
.pvv.ok{color:var(--pos)} .pvv.short{color:var(--ink)}
.pvaxis{position:relative;height:22px;margin:.3rem 13rem 0 16rem;font-size:.75rem;color:var(--slate)}
.pvaxis span{position:absolute;transform:translateX(-50%);white-space:nowrap}
@media (max-width:820px){.pvrow{grid-template-columns:1fr}.pvaxis{margin:.3rem 0 0}}

/* ---------- Benchmark tile art ---------- */
.bart{height:112px;margin:-.3rem -.3rem .9rem;border-radius:14px;background:var(--white);overflow:hidden}
.bart svg{width:100%;height:100%;display:block}
.bart .ln{fill:none;stroke:var(--slate);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.bart .ln .lt,.bart .lt{stroke:var(--line)}
.bart .win{stroke-dasharray:6 6}
.bart .net{stroke-dasharray:3 5}
.bart .ch{fill:none;stroke:var(--blue);stroke-width:1.8}
.bart .led{fill:var(--blue)}
.bart .mv{transform-box:view-box}
.bart .mv-carin{transform:translateX(330px)}
.bart .mv-pass{transform:translateX(-80px)}
.bart .mv-plane{transform:translate(-40px,34px)}
.bart .mv-gondola{transform:translate(48px,33px)}
.bart .mv-pump{transform-origin:56px 60px;transform:rotate(-7deg)}
.bart .mv-moon{opacity:.35}
.bart .pulse{fill:var(--blue);opacity:0;offset-path:path("M38 58 Q78 30 117 60 Q158 30 198 56 Q238 30 278 60");offset-rotate:0deg}
.bart.live .mv-carin{animation:bcarin 2.2s cubic-bezier(.2,.7,.2,1) both}
.bart.live .mv-pass{animation:bpass 3.4s linear both}
.bart.live .mv-plane{animation:bplane 3.6s ease-in-out both}
.bart.live .mv-gondola{animation:bgond 4s ease-in-out both}
.bart.live .mv-pump{animation:bpump 1.6s ease-in-out 3}
.bart.live .mv-moon{animation:bmoon 2.4s ease-out both}
.bart.live .mv-leave{animation:bleave 2.6s ease-in both}
.bart.live .pulse{animation:bnet 2.4s ease-in-out both}
.bart.live .pulse.p2{animation-delay:.9s}
.bart.live .led{animation:bled 1.1s ease-in-out 3}
@keyframes bcarin{from{transform:translateX(330px)}to{transform:translateX(var(--park))}}
@keyframes bpass{from{transform:translateX(-80px)}to{transform:translateX(380px)}}
@keyframes bplane{from{transform:translate(-40px,34px)}to{transform:translate(340px,6px)}}
@keyframes bgond{from{transform:translate(48px,33px)}to{transform:translate(290px,13px)}}
@keyframes bpump{0%,100%{transform:rotate(-7deg)}50%{transform:rotate(7deg)}}
@keyframes bmoon{from{opacity:.1;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes bleave{from{transform:translateX(0)}to{transform:translateX(260px)}}
@keyframes bnet{0%{offset-distance:0%;opacity:0}10%{opacity:1}90%{opacity:1}100%{offset-distance:100%;opacity:0}}
@keyframes bled{0%,100%{opacity:1}50%{opacity:.15}}
.bart.draw svg :is(path,rect,circle,line,polyline):not(.led):not(.pulse){stroke-dasharray:1;stroke-dashoffset:1;animation:drawline 1.1s cubic-bezier(.4,0,.2,1) forwards}
.bart.still .mv-carin{transform:translateX(var(--park))}
.bart.still .mv-moon{opacity:1}
.btop{display:flex;justify-content:space-between;align-items:flex-start;gap:.6rem}
.kchip{flex:none;font-size:.72rem;font-weight:650;padding:.2rem .55rem;border-radius:999px;background:var(--ice);color:var(--blue-deep);margin-top:.15rem}
.kchip.l2{background:var(--amber-soft);color:var(--ink)}
.bcard .reg{line-height:1.4}
.realnote{max-width:860px;margin:0 0 1.8rem}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);margin-top:5rem;background:var(--mist)}
.foot{max-width:1120px;margin:0 auto;padding:2.5rem 1.25rem 3rem;display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:2rem;font-size:.9rem;color:var(--slate)}
.foot b{display:block;color:var(--ink);font-weight:650;margin-bottom:.6rem}
.foot a{display:block;color:var(--slate);margin:.3rem 0}
.foot a:hover{color:var(--ink)}
.foot p{margin:0 0 .6rem;max-width:26em}
@media (max-width:760px){.foot{grid-template-columns:1fr 1fr}}

@media (prefers-reduced-motion: reduce){
  .cable .flow,.pp .wf{animation:none;stroke-dasharray:none;opacity:.9}
  .mb .t b{transition:none}
  *{scroll-behavior:auto}
}
@media print{
  .gnav,.snav,footer,.toc,.tool-actions,.nextpage,.btn{display:none !important}
  body{background:#fff;color:#000;font-size:11pt}
  section[hidden]{display:none !important}
  .note{background:#f2f2f2}
  a{color:#000}
}