/* ============ Tokens ============ */
:root {
  --bg: #04120d;
  --bg2: #0a1f17;
  --panel: rgba(13, 40, 31, 0.62);
  --panel-solid: #0d2720;
  --line: rgba(165, 215, 190, 0.12);
  --line-2: rgba(165, 215, 190, 0.22);
  --ink: #ffffff;
  --muted: #a9bdb3;
  --dim: #61786c;
  --cyan: #4fe3a8;
  --cyan-2: #22a777;
  --amber: #f0c35e;
  --amber-2: #d99a3a;
  --violet: #7fd6e0;
  --green: #c2e36f;
  --red: #ff6b7a;
  --display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --body: "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ============ Background ============ */
#bg {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(1200px 700px at 78% 20%, rgba(79, 227, 168, .07), transparent 60%),
    radial-gradient(900px 600px at 10% 90%, rgba(240, 195, 94, .05), transparent 60%),
    radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, .55));
}

/* ============ Stage (1600x900, scaled to fit) ============ */
#viewport {
  position: fixed; inset: 0; z-index: 2; overflow: hidden;
}
#stage {
  position: absolute; left: 50%; top: 50%;
  width: 1600px; height: 900px;
  transform-origin: center center;
  transform: translate(-50%, -50%);
}

/* ============ Chrome ============ */
.topbar {
  position: absolute; left: 0; right: 0; top: 0; height: 74px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 64px; z-index: 20;
  font-family: var(--mono); font-size: 13px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--dim);
}
.topbar .crumb { display: flex; gap: 14px; align-items: center; }
.topbar .crumb .sep { color: var(--line-2); }
.topbar .crumb #secName { color: var(--cyan); transition: opacity .4s; }
.topbar .right { display: flex; gap: 22px; align-items: center; }
.counter b { color: var(--ink); font-weight: 500; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line-2); background: rgba(255, 255, 255, .02);
  color: var(--muted); display: grid; place-items: center; cursor: pointer;
  transition: all .25s var(--ease);
}
.icon-btn:hover { color: var(--ink); border-color: var(--cyan); box-shadow: 0 0 18px rgba(79, 227, 168, .25); }
.icon-btn svg { width: 16px; height: 16px; }

.progress {
  position: absolute; left: 0; top: 0; height: 2px; z-index: 21;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  box-shadow: 0 0 12px rgba(79, 227, 168, .6);
  transition: width .7s var(--ease);
}

.bottombar {
  position: absolute; left: 0; right: 0; bottom: 0; height: 74px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 64px; z-index: 20;
}
.dots { display: flex; gap: 7px; align-items: center; }
.dots button {
  width: 7px; height: 7px; border-radius: 4px; border: 0; cursor: pointer;
  background: var(--line-2); transition: all .4s var(--ease);
}
.dots button:hover { background: var(--muted); }
.dots button.on { width: 28px; background: var(--cyan); box-shadow: 0 0 10px rgba(79, 227, 168, .6); }
.dots button.done { background: rgba(79, 227, 168, .35); }
.navbtns { position: absolute; right: 64px; display: flex; gap: 10px; }
.hint {
  position: absolute; left: 64px; font-family: var(--mono); font-size: 12px;
  color: var(--dim); letter-spacing: .08em; transition: opacity .6s;
}
.hint kbd {
  font-family: var(--mono); border: 1px solid var(--line-2); border-radius: 4px;
  padding: 1px 6px; margin: 0 2px; color: var(--muted);
}

/* ============ Slides ============ */
.slide {
  position: absolute; inset: 0;
  padding: 104px 96px 96px;
  display: flex; flex-direction: column; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity .6s var(--ease), visibility 0s linear .6s, transform .8s var(--ease);
  transform: translateX(40px) scale(.985);
}
.slide.prev { transform: translateX(-40px) scale(.985); }
.slide.active {
  opacity: 1; visibility: visible; transform: none;
  transition: opacity .6s var(--ease) .15s, visibility 0s, transform .8s var(--ease) .1s;
}

/* staggered reveal */
.slide > .kicker { align-self: flex-start; }
.slide [data-r] {
  opacity: 0; transform: translateY(22px); filter: blur(6px);
  transition: opacity .8s var(--ease), transform .9s var(--ease), filter .8s var(--ease);
}
.slide.active [data-r] { opacity: 1; transform: none; filter: none; }
.slide.active [data-r="1"] { transition-delay: .25s; }
.slide.active [data-r="2"] { transition-delay: .4s; }
.slide.active [data-r="3"] { transition-delay: .55s; }
.slide.active [data-r="4"] { transition-delay: .7s; }
.slide.active [data-r="5"] { transition-delay: .85s; }
.slide.active [data-r="6"] { transition-delay: 1s; }
.slide.active [data-r="7"] { transition-delay: 1.15s; }
.slide.active [data-r="8"] { transition-delay: 1.3s; }

/* fragments (revealed with → before advancing) */
.slide [data-frag] {
  opacity: .08; transform: translateY(10px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.slide [data-frag].shown { opacity: 1; transform: none; }

/* ============ Typography ============ */
.kicker {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--mono); font-size: 15px; font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase; color: var(--amber);
  margin-bottom: 22px;
}
.kicker::before {
  content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7;
}
.kicker .num { color: var(--ink); opacity: .55; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: 72px; line-height: 1.02; margin-bottom: 18px; }
h3 { font-size: 29px; line-height: 1.2; letter-spacing: -0.01em; }
.chev {
  display: flex; align-items: center; gap: 10px; margin: 6px 0 26px;
  color: var(--amber); font-family: var(--mono); font-size: 14px; letter-spacing: .3em;
}
.chev::before { content: ""; width: 150px; height: 1px; background: linear-gradient(90deg, var(--amber), transparent); }
.lead { font-size: 25px; line-height: 1.5; color: var(--muted); max-width: 760px; }
.lead b, .lead strong { color: var(--ink); font-weight: 600; }
p { line-height: 1.55; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.grad {
  background: linear-gradient(100deg, var(--amber) 0%, #f7e3b0 35%, var(--cyan) 80%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.c-cyan { color: var(--cyan); }
.c-amber { color: var(--amber); }
.c-violet { color: var(--violet); }
.c-green { color: var(--green); }

/* ============ Layout helpers ============ */
.row { display: flex; gap: 48px; }
.col { display: flex; flex-direction: column; }
.grow { flex: 1; min-width: 0; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; flex: 1; min-height: 0; align-items: center; }
.split-7-5 { display: grid; grid-template-columns: 7fr 5fr; gap: 56px; flex: 1; min-height: 0; align-items: center; }
.split-5-7 { display: grid; grid-template-columns: 5fr 7fr; gap: 56px; flex: 1; min-height: 0; align-items: center; }
.center { display: grid; place-items: center; }

/* ============ Components ============ */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px 28px;
  backdrop-filter: blur(10px);
  position: relative;
}
.card.glow { box-shadow: 0 0 0 1px rgba(79, 227, 168, .08), 0 20px 60px -20px rgba(79, 227, 168, .18); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 19.5px; }
.tag {
  display: inline-block; font-family: var(--mono); font-size: 12px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--cyan); padding: 5px 10px; border-radius: 999px;
  border: 1px solid rgba(79, 227, 168, .3); background: rgba(79, 227, 168, .06);
}
.tag.amber { color: var(--amber); border-color: rgba(240, 195, 94, .35); background: rgba(240, 195, 94, .07); }
.tag.violet { color: var(--violet); border-color: rgba(127, 214, 224, .35); background: rgba(127, 214, 224, .07); }

.bul { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.bul li {
  position: relative; padding-left: 30px; font-size: 22px; line-height: 1.5; color: var(--muted);
}
.bul li::before {
  content: ""; position: absolute; left: 0; top: 14px; width: 16px; height: 1px; background: var(--cyan);
}
.bul li b { color: var(--ink); font-weight: 600; }

/* figures from the article */
.fig {
  position: relative; margin: 0;
  display: flex; flex-direction: column; gap: 12px;
}
.fig .paper {
  background: #fff; border-radius: 14px; padding: 14px;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .8), 0 0 0 1px rgba(255, 255, 255, .06);
  overflow: hidden; cursor: zoom-in; position: relative;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.fig .paper:hover { transform: translateY(-3px); box-shadow: 0 40px 90px -30px rgba(79, 227, 168, .35), 0 0 0 1px rgba(79, 227, 168, .3); }
.fig .paper img { display: block; width: 100%; height: auto; }
.fig .paper::after {
  content: "⤢"; position: absolute; right: 12px; top: 10px; font-size: 16px; color: #8aa094;
  opacity: 0; transition: opacity .3s;
}
.fig .paper:hover::after { opacity: 1; }
.fig figcaption {
  font-family: var(--mono); font-size: 14px; color: var(--dim); letter-spacing: .02em; line-height: 1.5;
}
.fig figcaption b { color: var(--amber); font-weight: 500; }

/* equations */
.eq {
  background: linear-gradient(180deg, rgba(15, 44, 34, .75), rgba(10, 33, 26, .75));
  border: 1px solid var(--line); border-radius: 18px; padding: 24px 28px; position: relative;
}
.eq .eqn {
  position: absolute; right: 18px; top: 14px; font-family: var(--mono); font-size: 13px; color: var(--amber);
  letter-spacing: .1em;
}
.eq .tex { font-size: 30px; color: var(--ink); padding: 8px 0 14px; text-align: center; }
.eq .tex .katex-display { margin: 0; }
.eq .name { font-family: var(--display); font-size: 24px; font-weight: 600; margin-bottom: 4px; }
.eq .desc { color: var(--muted); font-size: 18.5px; line-height: 1.5; }
.vars { display: grid; grid-template-columns: auto 1fr auto; gap: 8px 16px; margin-top: 14px; font-size: 16.5px; align-items: baseline; }
.vars .s { color: var(--cyan); font-size: 17px; }
.vars .d { color: var(--muted); }
.vars .u { font-family: var(--mono); color: var(--amber); font-size: 13px; }

.stat .v { font-family: var(--display); font-size: 58px; font-weight: 600; letter-spacing: -0.03em; line-height: 1; }
.stat .l { font-family: var(--mono); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-top: 10px; }

/* sim panels */
.sim {
  position: relative; border-radius: 20px; overflow: hidden;
  border: 1px solid var(--line); background: rgba(5, 20, 15, .7);
}
.sim canvas { display: block; width: 100%; height: 100%; }
.sim .legend {
  position: absolute; left: 18px; top: 14px; font-family: var(--mono); font-size: 12px; color: var(--dim);
  letter-spacing: .1em; text-transform: uppercase;
}
.ctrls { display: flex; flex-direction: column; gap: 20px; }
.ctrl label {
  display: flex; justify-content: space-between; font-family: var(--mono); font-size: 13px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; font-size: 14px;
}
.ctrl label output { color: var(--ink); }
.seg { display: flex; gap: 6px; background: rgba(255, 255, 255, .03); border: 1px solid var(--line); border-radius: 12px; padding: 4px; }
.seg button {
  flex: 1; border: 0; background: transparent; color: var(--muted); padding: 10px 8px; border-radius: 9px;
  font-family: var(--mono); font-size: 14px; cursor: pointer; transition: all .25s var(--ease);
}
.seg button:hover { color: var(--ink); }
.seg button.on { background: rgba(79, 227, 168, .14); color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(79, 227, 168, .35); }
input[type=range] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px; border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan) var(--p, 50%), rgba(255, 255, 255, .1) var(--p, 50%));
  outline: none; cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--ink);
  border: 3px solid var(--cyan); box-shadow: 0 0 14px rgba(79, 227, 168, .6);
}
input[type=range]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%; background: var(--ink);
  border: 3px solid var(--cyan); box-shadow: 0 0 14px rgba(79, 227, 168, .6);
}
.readout { display: flex; align-items: baseline; gap: 12px; }
.readout .big { font-family: var(--display); font-size: 64px; font-weight: 600; letter-spacing: -0.03em; color: var(--green); line-height: 1; transition: color .3s; }
.readout .lbl { font-family: var(--mono); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.note { font-family: var(--mono); font-size: 13px; color: var(--dim); letter-spacing: .04em; line-height: 1.6; }

/* ============ Slide-specific ============ */

/* Cover */
.cover-sim { position: absolute; inset: 0; z-index: 0; }
.cover-sim canvas { width: 100%; height: 100%; display: block; }
.cover-sim::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--bg) 0%, rgba(3, 15, 11, .94) 38%, rgba(3, 15, 11, .45) 66%, rgba(3, 15, 11, .2) 100%);
}
.cover { position: relative; z-index: 1; max-width: 1060px; height: 100%; display: flex; flex-direction: column; justify-content: center; }
.cover h1 { font-size: 60px; line-height: 1.08; letter-spacing: -0.025em; margin-bottom: 8px; }
.cover .src { font-size: 20px; color: var(--muted); margin-top: 4px; }
.cover .src b { color: var(--ink); font-weight: 500; }
.team { margin-top: 44px; display: grid; grid-template-columns: repeat(2, minmax(0, 330px)); gap: 0 40px; }
.team .lbl {
  grid-column: 1 / -1; font-family: var(--mono); font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--dim); margin-bottom: 14px;
}
.member { border-left: 2px solid var(--cyan); padding: 4px 0 4px 18px; }
.member:nth-of-type(2) { border-color: var(--amber); }
.member .nm { font-family: var(--display); font-size: 30px; font-weight: 600; letter-spacing: -0.01em; }
.ids { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, minmax(0, 330px)); gap: 0 40px; margin-top: 14px; }
.ids .id { padding-left: 20px; font-family: var(--mono); font-size: 15px; color: var(--muted); letter-spacing: .06em; }
.ids .id span { color: var(--dim); font-size: 11px; letter-spacing: .2em; margin-right: 10px; }
.big-roman {
  position: absolute; right: 70px; bottom: 40px; z-index: 1;
  font-family: var(--display); font-size: 300px; font-weight: 700; line-height: .8; letter-spacing: -0.05em;
  color: rgba(255, 255, 255, .025); pointer-events: none;
}

/* Agenda */
.agenda { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 40px; }
.agenda .card { padding: 28px 26px 30px; transition: transform .4s var(--ease), border-color .4s; }
.agenda .card:hover { transform: translateY(-6px); border-color: var(--line-2); }
.agenda .rn { font-family: var(--display); font-size: 54px; font-weight: 700; line-height: 1; margin-bottom: 18px; }
.agenda h3 { font-size: 27px; margin-bottom: 16px; }
.agenda ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.agenda li { font-size: 18px; color: var(--muted); padding-left: 16px; position: relative; }
.agenda li::before { content: "›"; position: absolute; left: 0; color: var(--dim); }

/* Process flow / node diagrams */
.nodes { position: relative; }
.nodes svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.flowline { fill: none; stroke: var(--cyan); stroke-width: 1.6; stroke-dasharray: 6 8; opacity: .7; animation: dash 1.4s linear infinite; }
.flowline.amber { stroke: var(--amber); }
@keyframes dash { to { stroke-dashoffset: -28; } }
.node {
  position: absolute; transform: translate(-50%, -50%);
  background: var(--panel-solid); border: 1px solid var(--line-2); border-radius: 16px;
  padding: 16px 20px; text-align: center; min-width: 200px;
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, .6);
}
.node .ic { font-size: 26px; margin-bottom: 6px; }
.node b { display: block; font-family: var(--display); font-size: 21px; font-weight: 600; }
.node small { display: block; color: var(--muted); font-size: 15.5px; margin-top: 4px; }
.node.hub { border-color: rgba(79, 227, 168, .5); box-shadow: 0 0 40px -6px rgba(79, 227, 168, .35); }
.node.amber { border-color: rgba(240, 195, 94, .5); box-shadow: 0 0 40px -6px rgba(240, 195, 94, .3); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { padding: 0; overflow: hidden; }
.step .viz { height: 210px; border-bottom: 1px solid var(--line); position: relative; background: rgba(4, 17, 13, .6); }
.step .viz canvas { width: 100%; height: 100%; display: block; }
.step .body { padding: 22px 24px 26px; }
.step .n { font-family: var(--mono); font-size: 13px; color: var(--amber); letter-spacing: .2em; margin-bottom: 8px; }
.step.dim { opacity: .55; }

/* Hypotheses */
.hyp { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 30px; }
.hyp .card { padding: 22px 24px; }
.hyp .card h3 { font-size: 23px; display: flex; gap: 12px; align-items: center; }
.hyp .card h3 .i {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; flex: none;
  background: rgba(79, 227, 168, .1); color: var(--cyan); font-family: var(--mono); font-size: 14px;
}
.hyp .card p { font-size: 18px; }
.hyp svg { width: 100%; height: 70px; margin-top: 10px; }

/* Chain */
.chain { display: flex; align-items: center; gap: 0; margin-top: 30px; }
.chain .lk {
  flex: 1; text-align: center; padding: 18px 10px; border: 1px solid var(--line-2); border-radius: 14px;
  background: var(--panel-solid);
}
.chain .lk .t { font-size: 22px; color: var(--cyan); }
.chain .lk small { display: block; font-size: 14px; color: var(--muted); margin-top: 6px; font-family: var(--mono); letter-spacing: .06em; }
.chain .ar { width: 56px; height: 2px; position: relative; flex: none; background: linear-gradient(90deg, var(--line-2), var(--cyan)); overflow: visible; }
.chain .ar::after { content: ""; position: absolute; right: -2px; top: -4px; border: 5px solid transparent; border-left: 7px solid var(--cyan); }
.chain .ar i {
  position: absolute; top: -3px; width: 8px; height: 8px; border-radius: 50%; background: var(--amber);
  box-shadow: 0 0 10px var(--amber); animation: pulse-move 1.6s var(--ease) infinite;
}
@keyframes pulse-move { from { left: -4px; opacity: 0; } 20% { opacity: 1; } to { left: 52px; opacity: 0; } }

/* Eq 24 glossary highlighting */
.bigeq { font-size: 54px; text-align: center; padding: 34px 20px; }
.bigeq .katex { transition: all .3s; }
.vk { transition: color .3s, text-shadow .3s; }
.vk.hl { color: var(--amber); text-shadow: 0 0 22px rgba(240, 195, 94, .7); }
.gloss { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.gloss .g {
  border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; background: var(--panel); cursor: default;
  transition: all .3s var(--ease);
}
.gloss .g .s { font-size: 26px; color: var(--cyan); }
.gloss .g .d { font-size: 16.5px; color: var(--muted); margin-top: 6px; line-height: 1.4; }
.gloss .g .u { font-family: var(--mono); font-size: 12px; color: var(--amber); margin-top: 10px; letter-spacing: .06em; }
.gloss .g.hl { border-color: rgba(240, 195, 94, .55); background: rgba(240, 195, 94, .07); transform: translateY(-4px); }

/* Units */
.units { display: flex; flex-direction: column; gap: 12px; margin-top: 0; }
.units .ur {
  display: grid; grid-template-columns: 190px 1fr; align-items: center; gap: 24px;
  border: 1px solid var(--line); border-radius: 16px; padding: 8px 24px; background: var(--panel);
}
.units .ur .k { font-family: var(--mono); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--amber); }
.units .ur .tex { font-size: 30px; }
.units .ur.final { border-color: rgba(194, 227, 111, .45); background: rgba(194, 227, 111, .06); }
.units .ur.final .k { color: var(--green); }
.strike { position: relative; display: inline-block; }
.shown .strike::after {
  content: ""; position: absolute; left: -4px; right: -4px; top: 52%; height: 2px; background: var(--red);
  transform-origin: left; animation: strike .6s .3s var(--ease) both; box-shadow: 0 0 8px var(--red);
}
@keyframes strike { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* trends chips */
.trend { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.trend .t {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--panel); font-size: 17px; color: var(--muted);
  transition: all .3s var(--ease);
}
.trend .t .a { font-family: var(--mono); font-size: 18px; width: 22px; text-align: center; }
.trend .t.up .a { color: var(--green); }
.trend .t.dn .a { color: var(--red); }
.trend .t.hl { border-color: rgba(79, 227, 168, .5); color: var(--ink); background: rgba(79, 227, 168, .08); }

/* params grid */
.params { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 34px; }
.params .card { text-align: left; }
.params .pk { font-family: var(--mono); font-size: 13px; letter-spacing: .14em; color: var(--muted); text-transform: uppercase; }
.params .sym { font-size: 30px; color: var(--cyan); margin: 8px 0 16px; }
.params .vals { display: flex; flex-wrap: wrap; gap: 8px; }
.params .vals span {
  font-family: var(--mono); font-size: 16px; padding: 8px 12px; border-radius: 10px;
  background: rgba(255, 255, 255, .04); border: 1px solid var(--line);
}
.params .cnt { position: absolute; right: 22px; top: 18px; font-family: var(--display); font-size: 40px; font-weight: 700; color: rgba(255, 255, 255, .08); }
.mult { display: flex; align-items: center; justify-content: center; gap: 26px; margin-top: 40px; font-family: var(--display); }
.mult .x { font-size: 40px; color: var(--dim); }
.mult .n { font-size: 64px; font-weight: 600; }
.mult .eqs { font-size: 48px; color: var(--dim); }
.mult .res { font-size: 92px; font-weight: 700; }
.mult .res small { display: block; font-family: var(--mono); font-size: 13px; letter-spacing: .14em; color: var(--muted); text-transform: uppercase; font-weight: 400; }

/* MPPS band */
.band svg { width: 100%; height: auto; display: block; }

/* trends grid 2x2 */
.tg { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tg .card { padding: 18px 20px; }
.tg .ttl { display: flex; align-items: center; gap: 12px; font-family: var(--display); font-weight: 600; font-size: 21px; }
.tg .ttl .ic {
  width: 36px; height: 36px; border-radius: 10px; flex: none; display: grid; place-items: center;
  background: rgba(194, 227, 111, .1); color: var(--green); font-family: var(--mono); font-size: 15px;
}
.tg p { font-size: 17px; margin-top: 8px; }

.bigpct { font-family: var(--display); font-size: 70px; font-weight: 700; letter-spacing: -0.03em; line-height: 1; }

/* Q&A / end */
.end { height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
.end h2 { font-size: 110px; }

/* ============ Lightbox ============ */
#lightbox {
  position: fixed; inset: 0; z-index: 100; background: rgba(2, 9, 6, .88); backdrop-filter: blur(8px);
  display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .35s var(--ease);
  cursor: zoom-out; padding: 4vh 4vw;
}
#lightbox.on { opacity: 1; pointer-events: auto; }
#lightbox img {
  max-width: 100%; max-height: 92vh; background: #fff; border-radius: 12px; padding: 14px;
  transform: scale(.94); transition: transform .45s var(--ease);
  box-shadow: 0 40px 120px rgba(0, 0, 0, .7);
}
#lightbox.on img { transform: none; }

/* print / reduced motion */
@media (prefers-reduced-motion: reduce) {
  .slide, .slide > .kicker { align-self: flex-start; }
.slide [data-r] { transition-duration: .01s !important; transition-delay: 0s !important; }
  .flowline, .chain .ar i { animation: none; }
}