/* =====================================================================
   Neutrinos em espaço-tempo curvo — estilo do deck
   Palco fixo 1920×1080; tudo abaixo está em px desse palco.
   ===================================================================== */
:root {
  --display: "Instrument Serif", "Times New Roman", Georgia, serif;
  --read: "Literata", Georgia, serif;
  --ui: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --bg: #07080e;
  --surface: #0f121c;
  --surface-2: #151927;
  --line: rgba(255,255,255,.10);
  --line-2: rgba(255,255,255,.18);
  --text: #eef0f6;
  --text-2: #b3b9c9;
  --text-3: #737b90;

  /* os três sabores — violeta e turquesa vêm da página pessoal */
  --nu-e: #9e8cff;
  --nu-mu: #56e1d0;
  --nu-tau: #ffb86b;
  --warn: #ff7a8a;
  --ghost: #ffb86b;               /* Parte III: GHOST — âmbar (ν_τ), a terceira cor do título */
  --premissa: #c3c8d6;           /* premissas: neutro, fora das três partes */

  --part: var(--nu-e);            /* cor da parte atual; cada seção redefine */
  --W: 1920px;
  --H: 1080px;
}

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

/* ---------- palco ---------- */
#stage {
  position: absolute; left: 50%; top: 50%;
  width: var(--W); height: var(--H);
  transform: translate(-50%, -50%) scale(var(--s, 1));
}
.slide {
  position: absolute; inset: 0; overflow: hidden; background: var(--bg);
  opacity: 0; visibility: hidden;
  transition: opacity .4s ease, visibility 0s linear .4s;
}
.slide.active { opacity: 1; visibility: visible; transition: opacity .4s ease; z-index: 2; }
.notes { display: none; }

.slide.p1 { --part: var(--premissa); }          /* premissas */
.slide.p2 { --part: var(--nu-e); }              /* Parte I  · espaço-tempo curvo · violeta (νₑ) */
.slide.p3 { --part: var(--nu-mu); }             /* Parte II · neutrinos em ET curvo · turquesa (ν_μ) */
.slide.p4 { --part: var(--ghost); }             /* Parte III · GHOST · âmbar (ν_τ) */

/* ---------- slide de conteúdo ---------- */
.content {
  padding: 96px 130px 92px;
  display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 44px;
  background:
    radial-gradient(ellipse 70% 60% at 100% 0%, color-mix(in srgb, var(--part) 9%, transparent), transparent 70%),
    var(--bg);
}
.content > header { position: relative; }
.eyebrow {
  margin: 0 0 16px; font-size: 19px; letter-spacing: .26em; text-transform: uppercase; color: var(--part);
  display: flex; align-items: center; gap: 16px;
}
.eyebrow::before { content: ""; width: 46px; height: 1px; background: currentColor; opacity: .7; }
h2 {
  font-family: var(--display); font-weight: 400; margin: 0;
  font-size: 84px; line-height: 1; letter-spacing: -.01em;
}
h2 em, h3 em { font-style: italic; color: var(--part); }
h3 { font-family: var(--display); font-weight: 400; font-size: 44px; line-height: 1.05; margin: 0 0 14px; }
.body { min-height: 0; position: relative; }

p, li { font-family: var(--read); font-weight: 300; font-size: 29px; line-height: 1.5; color: var(--text-2); }
p { margin: 0 0 22px; }
p b, li b { font-weight: 500; color: var(--text); }
p i, li i { color: var(--text); }
.big { font-size: 36px; line-height: 1.42; }
.small { font-size: 23px; line-height: 1.5; }
.muted { color: var(--text-3); }
.ui { font-family: var(--ui); }
.mono { font-family: var(--mono); font-size: .88em; }
.c-g { color: var(--ghost); } .c-e { color: var(--nu-e); } .c-mu { color: var(--nu-mu); } .c-tau { color: var(--nu-tau); } .c-part { color: var(--part); }

ul.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
ul.list li { position: relative; padding-left: 38px; margin: 0; }
ul.list li::before {
  content: ""; position: absolute; left: 4px; top: .62em; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--part); box-shadow: 0 0 12px color-mix(in srgb, var(--part) 60%, transparent);
}

/* grades */
.cols { display: grid; gap: 64px; height: 100%; align-items: start; }
.cols.c2 { grid-template-columns: 1fr 1fr; }
.cols.c3 { grid-template-columns: repeat(3, 1fr); gap: 36px; }
.cols.c4 { grid-template-columns: repeat(4, 1fr); gap: 30px; }
.cols.l { grid-template-columns: 1.25fr 1fr; }
.cols.r { grid-template-columns: 1fr 1.25fr; }
.cols.rr { grid-template-columns: .8fr 1.5fr; }
.cols.ll { grid-template-columns: 1.5fr .8fr; }
.cols.center { align-items: center; }
.stack { display: grid; gap: 22px; align-content: start; }

/* cartões */
.card {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line); border-radius: 24px; padding: 32px 34px;
}
.card h4 {
  font: 600 17px var(--ui); letter-spacing: .2em; text-transform: uppercase; color: var(--part); margin: 0 0 14px;
}
.card p:last-child { margin-bottom: 0; }
.card.glow { border-color: color-mix(in srgb, var(--part) 40%, transparent); box-shadow: 0 0 60px color-mix(in srgb, var(--part) 12%, transparent); }

/* números grandes */
.stat { font-family: var(--display); font-size: 92px; line-height: .95; color: var(--text); }
.stat small { font-size: .42em; color: var(--text-3); }
.stat-label { font-size: 20px; color: var(--text-2); letter-spacing: .04em; margin-top: 10px; line-height: 1.4; }

/* equações */
.eq {
  font-family: var(--display); font-size: 50px; line-height: 1.25; color: var(--text);
  padding: 26px 36px; border-radius: 20px; border: 1px solid color-mix(in srgb, var(--part) 35%, transparent);
  background: color-mix(in srgb, var(--part) 7%, transparent); text-align: center;
}
.eq i { font-style: italic; }
.eq sub, .eq sup { font-size: .58em; }
.eq .note { display: block; font: 18px var(--ui); letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); margin-top: 10px; }
.eq.sm { font-size: 40px; padding: 20px 28px; }
.frac { display: inline-flex; flex-direction: column; vertical-align: middle; text-align: center; font-size: .9em; line-height: 1.05; margin: 0 .1em; }
.frac > span:first-child { border-bottom: 2px solid currentColor; padding: 0 .12em .04em; }

/* citação */
blockquote {
  margin: 0; font-family: var(--display); font-style: italic; font-size: 52px; line-height: 1.18; color: var(--text);
  border-left: 3px solid var(--part); padding: 6px 0 6px 40px;
}
blockquote footer { font: 21px var(--ui); font-style: normal; color: var(--text-3); margin-top: 20px; letter-spacing: .04em; }

/* figuras */
figure { margin: 0; position: relative; }
figure img, figure svg.fig { display: block; width: 100%; border-radius: 18px; }
figure.fill { height: 100%; }
figure.fill img { height: 100%; object-fit: cover; }
figure.contain img { object-fit: contain; }
figure.white img { background: #fff; padding: 18px; }
figcaption { font: 19px/1.45 var(--ui); color: var(--text-3); margin-top: 14px; }
figcaption b { color: var(--text-2); font-weight: 600; }
.credit {
  position: absolute; right: 12px; bottom: 12px; font: 13px var(--ui); color: rgba(255,255,255,.75);
  background: rgba(0,0,0,.55); padding: 4px 9px; border-radius: 6px; letter-spacing: .02em;
}
figure > .credit { top: 12px; bottom: auto; }
.portrait img { aspect-ratio: 4 / 5; max-height: 560px; object-fit: cover; filter: grayscale(.15) contrast(1.05); }
.portrait figcaption { font-size: 21px; }
.portrait figcaption b { display: block; font: 400 34px var(--display); color: var(--text); margin-bottom: 2px; }

/* linha do tempo */
.timeline { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 22px; height: 2px; background: linear-gradient(90deg, var(--nu-e), var(--nu-mu), var(--nu-tau)); opacity: .6; }
.timeline > div { padding: 56px 22px 0 0; position: relative; }
.timeline > div::before { content: ""; position: absolute; left: 0; top: 14px; width: 18px; height: 18px; border-radius: 50%; background: var(--bg); border: 2px solid var(--part); }
.timeline .yr { font: 400 48px var(--display); color: var(--text); }
.timeline p { font-size: 22px; line-height: 1.45; margin: 6px 0 0; }

/* tabela */
table.tbl { width: 100%; border-collapse: collapse; font-family: var(--ui); font-size: 24px; }
table.tbl th { text-align: left; font-weight: 600; font-size: 16px; letter-spacing: .16em; text-transform: uppercase; color: var(--text-3); padding: 12px 16px; border-bottom: 1px solid var(--line-2); }
table.tbl td { padding: 15px 16px; border-bottom: 1px solid var(--line); color: var(--text-2); }
table.tbl td.n { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 22px; color: var(--text); }
table.tbl tr.hl td { color: var(--text); background: color-mix(in srgb, var(--part) 9%, transparent); }

/* tags */
.tag { display: inline-block; font: 600 15px var(--ui); letter-spacing: .14em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--text-2); }
.tag.part { border-color: color-mix(in srgb, var(--part) 55%, transparent); color: var(--part); }
.ref { font: 17px/1.5 var(--ui); color: var(--text-3); }
.cols.c4 .stack > p.ref { font-size: 15.5px; }
.ref i { color: var(--text-2); }
.stack > p.ref { margin: 0; }

/* rodapé de cada slide de conteúdo */
.slide .foot {
  position: absolute; left: 130px; right: 130px; bottom: 34px;
  display: flex; justify-content: space-between; align-items: center;
  font: 15px var(--ui); letter-spacing: .14em; text-transform: uppercase; color: var(--text-3);
}
.foot .parts { display: flex; gap: 10px; align-items: center; }
.foot .parts span { width: 36px; height: 3px; border-radius: 3px; background: rgba(255,255,255,.12); }
.slide.p2 .foot .parts span:nth-child(1),
.slide.p3 .foot .parts span:nth-child(2),
.slide.p4 .foot .parts span:nth-child(3) { background: var(--part); box-shadow: 0 0 10px var(--part); }

/* ---------- capa de parte ---------- */
.partcover { display: grid; align-items: center; padding: 0 150px; }
.partcover .bg { position: absolute; inset: 0; background-size: cover; background-position: center; filter: saturate(.9); }
.partcover .bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(7,8,14,.97) 0%, rgba(7,8,14,.9) 38%, rgba(7,8,14,.35) 70%, rgba(7,8,14,.2) 100%),
    linear-gradient(0deg, rgba(7,8,14,.85), transparent 40%);
}
.partcover .inner { position: relative; max-width: 1150px; }
.partcover .num {
  font-family: var(--display); font-style: italic; font-size: 300px; line-height: .8; margin: 0 0 10px;
  color: transparent; -webkit-text-stroke: 2px var(--part); opacity: .9;
}
.partcover .label { font-size: 21px; letter-spacing: .3em; text-transform: uppercase; color: var(--part); margin: 0 0 22px; }
.partcover h2 { font-size: 150px; line-height: .92; }
.partcover .sub { font-size: 34px; margin-top: 36px; max-width: 980px; }
.partcover .topics { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.partcover .topics span { font: 18px var(--ui); letter-spacing: .06em; color: var(--text-2); padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(7,8,14,.5); backdrop-filter: blur(6px); }
.partcover .credit { right: 24px; bottom: 20px; }

/* ---------- dashboards ---------- */
.dash {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line); border-radius: 24px; padding: 26px 30px;
  display: grid; gap: 16px; height: 100%; grid-template-rows: auto minmax(0, 1fr) auto auto;
}
.dash-head { display: flex; justify-content: space-between; align-items: center; }
.dash-head .tag::before { content: "●"; color: var(--nu-mu); margin-right: 8px; animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .3; } }
.cv { position: relative; min-height: 0; min-width: 0; height: 100%; }
.cv canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.plots { display: grid; gap: 22px; min-height: 0; height: 100%; grid-template-rows: 100%; }
.plots.two { grid-template-columns: 1fr 1fr; }
.plots > div { position: relative; min-height: 0; height: 100%; }
.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px 34px; align-items: end; }
.ctl { display: grid; gap: 8px; }
.ctl label { font: 16px var(--ui); letter-spacing: .08em; color: var(--text-3); display: flex; justify-content: space-between; }
.ctl label output { font-family: var(--mono); color: var(--text); letter-spacing: 0; font-size: 17px; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 30px; background: transparent; cursor: pointer; }
input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--part), rgba(255,255,255,.15)); }
input[type=range]::-moz-range-track { height: 4px; border-radius: 4px; background: rgba(255,255,255,.15); }
input[type=range]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--part); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; margin-top: -9px; border-radius: 50%; background: var(--text); border: 3px solid var(--part); box-shadow: 0 0 14px var(--part); }
input[type=range]::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--text); border: 3px solid var(--part); }
.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: 999px; overflow: hidden; }
.seg button { font: 600 16px var(--ui); letter-spacing: .06em; color: var(--text-2); background: transparent; border: 0; padding: 9px 18px; cursor: pointer; }
.seg button.on { background: var(--part); color: #0a0b12; }
.readout { display: flex; flex-wrap: wrap; gap: 12px 34px; font: 18px var(--ui); color: var(--text-3); }
.readout b { font: 500 20px var(--mono); color: var(--text); margin-left: 6px; }
.legend-line { display: flex; gap: 26px; font: 17px var(--ui); color: var(--text-2); flex-wrap: wrap; }
.legend-line span { display: inline-flex; align-items: center; gap: 9px; }
.legend-line span::before { content: ""; width: 28px; height: 3px; border-radius: 2px; background: var(--c); }
.legend-line span.dash-l::before { background: repeating-linear-gradient(90deg, var(--c) 0 7px, transparent 7px 12px); }

/* ---------- CAPA GERAL ---------- */
.cover canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.cover .veil {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(7,8,14,.96) 0%, rgba(7,8,14,.86) 34%, rgba(7,8,14,.25) 60%, rgba(7,8,14,0) 75%),
    radial-gradient(ellipse 120% 90% at 70% 50%, transparent 55%, rgba(7,8,14,.85) 100%);
}
.grain {
  position: absolute; inset: 0; pointer-events: none; opacity: .07; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.cover .top {
  position: absolute; left: 140px; right: 140px; top: 92px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 21px; letter-spacing: .22em; text-transform: uppercase; color: var(--text-2);
}
.school { display: flex; align-items: center; gap: 22px; }
.flavours { display: inline-flex; gap: 7px; }
.flavours i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.flavours i:nth-child(1) { background: var(--nu-e);   box-shadow: 0 0 14px var(--nu-e); }
.flavours i:nth-child(2) { background: var(--nu-mu);  box-shadow: 0 0 14px var(--nu-mu); }
.flavours i:nth-child(3) { background: var(--nu-tau); box-shadow: 0 0 14px var(--nu-tau); }
.school b, .date b { color: var(--text); font-weight: 600; }
.date { font-variant-numeric: tabular-nums; }
.cover .main { position: absolute; left: 140px; top: 236px; width: 1500px; }
.kicker {
  font-size: 20px; letter-spacing: .3em; text-transform: uppercase; color: var(--nu-mu);
  display: flex; align-items: center; gap: 18px; margin: 0 0 34px;
}
.kicker::before { content: ""; width: 64px; height: 1px; background: currentColor; opacity: .7; }
.cover h1 { font-family: var(--display); font-weight: 400; margin: 0; font-size: 168px; line-height: .92; letter-spacing: -.012em; }
.cover h1 em, .grad {
  font-style: italic; display: inline-block; padding-right: .08em;
  background: linear-gradient(100deg, var(--nu-e) 0%, var(--nu-mu) 52%, var(--nu-tau) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-family: var(--read); font-weight: 300; font-size: 33px; line-height: 1.45; color: var(--text-2); max-width: 980px; margin: 42px 0 0; }
.lede i { color: var(--text); font-style: italic; }
.phase {
  display: inline-flex; align-items: baseline; gap: 26px; padding: 16px 28px 18px; border-radius: 999px;
  border: 1px solid rgba(158,140,255,.28);
  background: linear-gradient(90deg, rgba(158,140,255,.08), rgba(86,225,208,.05)); backdrop-filter: blur(6px);
}
.phase .eqn { font-family: var(--display); font-size: 40px; color: var(--text); }
.phase .eqn i { font-style: italic; }
.phase .eqn sub, .phase .eqn sup { font-size: .55em; }
.phase small { font-size: 17px; letter-spacing: .16em; text-transform: uppercase; color: var(--text-3); }
.cover .bottom { position: absolute; left: 140px; right: 140px; bottom: 96px; display: flex; justify-content: space-between; align-items: end; }
.author .name { font-family: var(--display); font-size: 56px; line-height: 1; margin: 0 0 14px; color: var(--text); }
.author .aff { font: 22px var(--ui); color: var(--text-2); letter-spacing: .02em; margin: 0; }
.author .aff span { color: var(--text-3); padding: 0 .5em; }
.right { display: flex; flex-direction: column; align-items: flex-end; gap: 26px; }
.links { font-size: 18px; letter-spacing: .06em; color: var(--text-3); }
.links span { padding: 0 .7em; }
.links a { color: var(--text-2); text-decoration: none; border-bottom: 1px solid rgba(158,140,255,.35); padding-bottom: 2px; }
.cover .legend { position: absolute; right: 140px; top: 188px; display: flex; gap: 30px; font-family: var(--display); font-size: 30px; color: var(--text-2); }
.cover .legend > span { display: inline-flex; align-items: center; gap: 10px; }
.cover .legend > span::before { content: ""; width: 26px; height: 2px; border-radius: 2px; background: var(--c); box-shadow: 0 0 10px var(--c); }
.cover .legend b { font-weight: 400; }
.cover .legend sub { font-size: .6em; font-style: italic; }

@media (prefers-reduced-motion: no-preference) {
  .slide.active .rise { animation: rise 1.1s cubic-bezier(.2,.7,.1,1) both; }
  .slide.active .rise.d1 { animation-delay: .10s; }
  .slide.active .rise.d2 { animation-delay: .22s; }
  .slide.active .rise.d3 { animation-delay: .38s; }
  .slide.active .rise.d4 { animation-delay: .52s; }
  .slide.active .rise.d5 { animation-delay: .70s; }
  @keyframes rise { from { opacity: 0; transform: translateY(26px); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }
}

/* ---------- cromo ---------- */
.progress { position: fixed; left: 0; right: 0; bottom: 0; height: 3px; z-index: 20; background: rgba(255,255,255,.06); }
.progress i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--nu-e), var(--nu-mu), var(--nu-tau)); transition: width .3s ease; }
.counter { position: fixed; right: 18px; bottom: 12px; z-index: 20; font: 12px var(--mono); color: var(--text-3); letter-spacing: .08em; opacity: 0; transition: opacity .3s; }
body:hover .counter { opacity: 1; }
#notes-panel {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; max-height: 34vh; overflow: auto;
  padding: 18px 28px 24px; background: rgba(12,14,22,.96); border-top: 1px solid var(--line);
  font: 17px/1.55 var(--read); color: var(--text-2); display: none;
}
body.show-notes #notes-panel { display: block; }
#notes-panel h4 { font: 600 12px var(--ui); letter-spacing: .2em; text-transform: uppercase; color: var(--nu-mu); margin: 0 0 8px; }
#help { position: fixed; inset: 0; z-index: 50; display: none; place-items: center; background: rgba(4,5,9,.72); backdrop-filter: blur(4px); }
#help.open { display: grid; }
#help .box { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 28px 34px; min-width: 360px; }
#help h3 { font-size: 34px; }
#help dl { display: grid; grid-template-columns: auto 1fr; gap: 10px 22px; margin: 0; font-size: 15px; color: var(--text-2); }
#help dt { font-family: var(--mono); color: var(--text); }
#help dd { margin: 0; }

/* seletor de idioma, discreto como o contador */
.langsw { position: fixed; top: 14px; right: 18px; z-index: 30; display: flex; gap: 2px; font: 600 12px var(--ui); letter-spacing: .1em; opacity: 0; transition: opacity .3s; }
body:hover .langsw, .langsw:focus-within { opacity: .9; }
.langsw a { color: var(--text-3); text-decoration: none; padding: 5px 9px; border-radius: 6px; }
.langsw a:hover { color: var(--text); }
.fsbtn { position: fixed; top: 12px; right: 104px; z-index: 30; background: none; border: 0; color: var(--text-3); font: 18px var(--ui); padding: 3px 8px; border-radius: 6px; cursor: pointer; opacity: 0; transition: opacity .3s; }
body:hover .fsbtn, .fsbtn:focus-visible { opacity: .9; }
.fsbtn:hover { color: var(--text); background: rgba(255,255,255,.09); }
.langsw a.on { color: var(--text); background: rgba(255,255,255,.09); }

/* visão geral: grade de miniaturas */
body.overview { overflow: auto; }
body.overview #stage { position: static; transform: none; width: auto; height: auto; display: grid; grid-template-columns: repeat(auto-fill, 384px); gap: 18px; padding: 24px; justify-content: center; }
body.overview .slide { position: relative; opacity: 1; visibility: visible; width: 1920px; height: 1080px; transform: scale(.2); transform-origin: 0 0; margin: 0 -1536px -864px 0; cursor: pointer; border-radius: 30px; outline: 6px solid transparent; }
body.overview .slide.active { outline-color: var(--nu-mu); }
body.overview .progress, body.overview .counter, body.overview .fsbtn { display: none; }

/* ---------- impressão: um slide por página ---------- */
@page { size: 1920px 1080px; margin: 0; }
@media print {
  html, body { overflow: visible; height: auto; }
  #stage { position: static; transform: none; }
  .slide { position: relative; width: var(--W); height: var(--H); opacity: 1; visibility: visible; break-after: page; }
  .progress, .counter, .langsw, .fsbtn, #notes-panel, #help { display: none !important; }
  .rise { animation: none !important; }
}

/* ---------- Parte IV: figuras do paper (fundo branco) e painel do choque ---------- */
figure.paper img { background: #fff; padding: 14px; object-fit: contain; }
.ghost-cover svg { position: absolute; right: 0; top: 0; width: 62%; height: 100%; }
.verdict td:last-child { color: var(--text); }
.verdict .ok { color: var(--nu-mu); } .verdict .no { color: var(--warn); }
.plots.chq { grid-template-columns: 1.55fr 1fr; grid-template-rows: 1.3fr 1fr; }
.plots.chq > .cv:nth-child(1) { grid-row: 1; grid-column: 1; }
.plots.chq > .cv:nth-child(2) { grid-row: 2; grid-column: 1; }
.plots.chq > .cv:nth-child(3) { grid-row: 1; grid-column: 2; }
.plots.chq > .cv:nth-child(4) { grid-row: 2; grid-column: 2; }
.seg button.plain { border-left: 1px solid var(--line-2); }

/* ---------- dashboard do rio (Hamilton & Lisle) ---------- */
.plots.river { grid-template-columns: 1.55fr 1fr; }
.river-side { display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 14px; min-height: 0; }
.river-side p { font-size: 21px; line-height: 1.45; margin: 0; }
#river { cursor: grab; touch-action: none; }

/* matriz 2×2 escrita em HTML */
.mx { display: inline-flex; align-items: center; vertical-align: middle; gap: 4px; }
.mx-p { font: 300 3.1em/1 var(--display); transform: scaleY(1.35); color: var(--text-2); }
.mx-g { display: grid; grid-template-columns: auto auto; gap: 6px 22px; text-align: center; font-size: .82em; }
.boxed { display: inline-block; border: 2px solid var(--warn); border-radius: 10px; padding: 4px 18px; }

/* faixa de progresso só de leitura (slides de compacidade) */
.seg-static span { font: 600 16px var(--ui); letter-spacing: .06em; color: var(--text-3); padding: 9px 16px; }
.seg-static span.on { background: var(--part); color: #0a0b12; }

/* slide de vídeo em tela cheia */
.videoslide video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.videoslide .vveil { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(7,8,14,.92) 0%, rgba(7,8,14,.35) 30%, rgba(7,8,14,0) 55%), linear-gradient(180deg, rgba(7,8,14,.7) 0%, rgba(7,8,14,0) 22%); pointer-events: none; }
.videoslide .vhead { position: absolute; left: 130px; top: 84px; }
.videoslide .vfoot { position: absolute; left: 130px; right: 130px; bottom: 90px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 50px; align-items: end; }
.videoslide .vfoot p { font-size: 25px; margin: 0; color: var(--text); }
.videoslide .vsteps { display: flex; gap: 10px; flex-wrap: wrap; }
.videoslide .vsteps span { font: 16px var(--ui); color: var(--text-2); padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(7,8,14,.55); }