:root {
  --paper: #f3f1ec;
  --card: #ffffff;
  --ink: #221f1b;
  --ink-soft: #625c53;
  --line: #ddd8ce;
  --sol: #d99a16;
  --won: #3d7ea6;
  --wof: #1f4e6b;
  --nuc: #8a7f72;
  --sto: #4f8a5b;
  --def: #c8452c;
  --cut: #b9b2a6;
  --focus: #e0a526;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.55 var(--sans); font-variant-numeric: tabular-nums; }
a { color: var(--won); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.hidden { display: none !important; }

.top {
  position: sticky; top: 0; z-index: 1000;
  display: flex; align-items: center; gap: 1.2rem;
  padding: .6rem clamp(1rem, 4vw, 3rem);
  background: rgba(243, 241, 236, .94); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.brand { font: 1.35rem var(--serif); color: var(--ink); text-decoration: none; white-space: nowrap; }
.top nav { display: flex; gap: 1.1rem; overflow-x: auto; flex: 1; }
.top nav a { color: var(--ink-soft); text-decoration: none; font-size: .9rem; white-space: nowrap; }
.top nav a:hover { color: var(--ink); }
.year { font-size: .85rem; color: var(--ink-soft); white-space: nowrap; }
select, button { font: inherit; }
select { border: 1px solid var(--line); background: var(--card); border-radius: 6px; padding: .25rem .4rem; color: var(--ink); }

main { max-width: 1240px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 3rem) 4rem; }
.hero { padding: clamp(2.5rem, 6vw, 4.5rem) 0 1.5rem; }
.hero h1 { font: 400 clamp(2.1rem, 5vw, 3.9rem)/1.05 var(--serif); letter-spacing: -.01em; max-width: 19ch; margin: 0 0 1.3rem; }
.lede { max-width: 66ch; font-size: 1.08rem; color: var(--ink-soft); margin: 0 0 1.8rem; }
.lede b { color: var(--ink); font-weight: 600; }
.hero-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; }
.hero-kpis div { border-top: 3px solid var(--ink); padding-top: .5rem; }
.hero-kpis b { display: block; font: 400 2.4rem/1.05 var(--serif); }
.hero-kpis span { font-size: .9rem; color: var(--ink-soft); }

.chapter { padding-top: 3rem; border-top: 1px solid var(--line); margin-top: 2.5rem; }
.chapter-head h2, .sources h2 { font: 400 clamp(1.8rem, 3.4vw, 2.6rem)/1.1 var(--serif); margin: 0 0 .5rem; }
.chapter-head p { max-width: 70ch; color: var(--ink-soft); margin: 0 0 1.4rem; }
h3 { font-size: 1rem; margin: 0 0 .6rem; }

.seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--ink); border-radius: 999px; overflow: hidden; margin-bottom: 1rem; }
.seg button { font: 500 .88rem var(--sans); color: var(--ink); background: transparent; border: 0; padding: .42rem 1rem; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--ink); }
.seg button[aria-selected="true"] { background: var(--ink); color: #fff; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1rem 1.1rem; margin-bottom: 1rem; min-width: 0; }
.card-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .5rem; margin-bottom: .4rem; }
.card-head h3 { margin: 0; }
canvas { width: 100%; display: block; }
.note { font-size: .85rem; color: var(--ink-soft); margin: .5rem 0 0; max-width: 80ch; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 860px) { .two { grid-template-columns: 1fr; } }

.grid-map { display: grid; grid-template-columns: 1fr 300px; gap: 1rem; margin-bottom: 1rem; }
#map { height: 560px; border-radius: 8px; border: 1px solid var(--line); background: #e9e5dc; }
.leaflet-container { font: 13px var(--sans); background: #e9e5dc; }
.side { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1rem; font-size: .9rem; }
.legend { margin-bottom: 1rem; }
.legend .ramp { height: 12px; border-radius: 3px; }
.legend .ticks { display: flex; justify-content: space-between; color: var(--ink-soft); font-size: .8rem; }
.rank { margin: 0 0 1rem; padding-left: 1.4rem; }
.rank li { display: flex; justify-content: space-between; gap: .5rem; }
.rank li b { font-weight: 600; }
@media (max-width: 860px) { .grid-map { grid-template-columns: 1fr; } #map { height: 440px; } }

.presets { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: 1rem; font-size: .9rem; color: var(--ink-soft); }
.presets button, .ghost, .weeknav button { border: 1px solid var(--ink); background: transparent; border-radius: 999px; padding: .3rem .8rem; cursor: pointer; color: var(--ink); font-size: .85rem; }
.presets button:hover, .weeknav button:hover { background: var(--ink); color: #fff; }
.sim { display: grid; grid-template-columns: 300px 1fr; gap: 1.2rem; align-items: start; }
@media (max-width: 960px) { .sim { grid-template-columns: 1fr; } }
.controls { position: sticky; top: 64px; background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .8rem 1rem; }
@media (max-width: 960px) { .controls { position: static; } }
fieldset { border: 0; border-top: 1px solid var(--line); margin: 0; padding: .7rem 0 .4rem; }
fieldset:first-child { border-top: 0; padding-top: 0; }
legend { font: 600 .75rem var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); padding: 0; }
.controls label, .phys-controls label, .fois-controls label { display: block; font-size: .88rem; margin: .45rem 0 0; }
.controls output, .phys-controls output, .fois-controls output { float: right; font-weight: 600; }
input[type=range] { width: 100%; accent-color: var(--ink); margin: .2rem 0 0; }
label.sel select { display: block; width: 100%; margin-top: .2rem; }
.hint { font-size: .78rem; color: var(--ink-soft); margin: .1rem 0 0; }
.dot { display: inline-block; width: .7rem; height: .7rem; border-radius: 2px; margin-right: .4rem; vertical-align: -1px; }
.dot.sol { background: var(--sol); } .dot.won { background: var(--won); } .dot.wof { background: var(--wof); }
.dot.nuc { background: var(--nuc); } .dot.sto { background: var(--sto); } .dot.def { background: var(--def); } .dot.cut { background: var(--cut); }
.dot.load { background: var(--ink); height: 3px; vertical-align: 3px; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: .8rem; margin-bottom: 1rem; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .7rem .8rem; border-top: 3px solid var(--ink); }
.kpi b { display: block; font: 400 1.9rem/1.1 var(--serif); }
.kpi span { font-size: .82rem; color: var(--ink-soft); display: block; }
.kpi.def { border-top-color: var(--def); } .kpi.sto { border-top-color: var(--sto); } .kpi.cut { border-top-color: var(--cut); } .kpi.ok { border-top-color: var(--won); }
.weeknav { display: flex; gap: .3rem; align-items: center; }
.weeknav button { padding: .15rem .6rem; }
.leg { display: flex; flex-wrap: wrap; gap: .3rem 1rem; font-size: .82rem; color: var(--ink-soft); margin-top: .4rem; }

.phys-controls, .fois-controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .6rem 1.4rem; margin-bottom: 1rem; align-items: end; }
.phys-controls select, .fois-controls select { display: block; width: 100%; margin-top: .2rem; }
.fois-controls .seg { margin: 0; align-self: end; justify-self: start; }
.phys { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.phys .card b { font: 400 2.3rem/1.05 var(--serif); display: block; }
.phys .card p { margin: .3rem 0 0; font-size: .88rem; color: var(--ink-soft); }
.phys .card .vs { color: var(--ink); font-weight: 600; }
.tablewrap { max-height: 420px; overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: .86rem; }
th, td { text-align: right; padding: .3rem .5rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { position: sticky; top: 0; background: var(--card); font-weight: 600; cursor: pointer; }
td.warn { color: var(--def); font-weight: 600; }
label.inline { font-size: .88rem; display: block; margin-bottom: .4rem; }

.sources .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
@media (max-width: 860px) { .sources .cols { grid-template-columns: 1fr; } }
.sources ul { padding-left: 1.1rem; font-size: .92rem; color: var(--ink-soft); }
.sources li { margin-bottom: .4rem; }
.sources li b { color: var(--ink); }

.tip { position: fixed; z-index: 2000; pointer-events: none; background: var(--ink); color: #fff; font-size: .8rem; line-height: 1.35; padding: .45rem .6rem; border-radius: 6px; max-width: 280px; }
.tip b { font-weight: 600; }

.equiv { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .8rem; margin: .9rem 0 .4rem; }
.equiv div { border-left: 3px solid var(--sto); padding: .1rem 0 .1rem .7rem; font-size: .88rem; color: var(--ink-soft); }
.equiv b { display: block; font: 400 1.5rem/1.15 var(--serif); color: var(--ink); }
details.hyp { margin-top: .8rem; font-size: .88rem; }
details.hyp summary { cursor: pointer; font-weight: 600; }
.hyp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: .5rem 1rem; margin-top: .6rem; }
.hyp-grid label { font-size: .82rem; color: var(--ink-soft); }
.hyp-grid input { display: block; width: 100%; margin-top: .15rem; font: inherit; padding: .25rem .4rem; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); }
#costTable td.dim { color: var(--ink-soft); }
#costTable tr.best td { font-weight: 600; }