/* ==========================================================================
   Diff-FIT Studio — tema "light editorial / scientifico"
   Pensato per reveal.js 6. Nessuna dipendenza esterna: font di sistema,
   tutto il resto è CSS puro (la presentazione funziona offline).
   ========================================================================== */

:root {
  /* Carta e inchiostro */
  --paper:        #faf9f6;
  --paper-sunk:   #f2f0ea;
  --paper-card:   #ffffff;
  --ink:          #17171a;
  --ink-soft:     #56544e;
  --ink-faint:    #8b877e;
  --rule:         #dedad1;
  --rule-strong:  #c6c1b5;

  /* Accenti: il teal è quello del brand Diff-FIT Studio,
     la terracotta marca tutto ciò che viene da AiDNA / dal DNA. */
  --accent:       #0e6f63;
  --accent-deep:  #0a534a;
  --accent-wash:  #e6f1ef;
  --dna:          #a4552c;
  --dna-wash:     #f7ece5;

  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto,
          "Liberation Sans", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua",
           Georgia, "Liberation Serif", serif;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", "DejaVu Sans Mono",
          Menlo, Consolas, monospace;
}

/* --------------------------------------------------------------- base --- */

.reveal-viewport {
  background: var(--paper);
  /* grana appena percettibile: dà "stampa" senza immagini esterne */
  background-image:
    radial-gradient(circle at 15% 12%, rgba(14, 111, 99, 0.035), transparent 45%),
    radial-gradient(circle at 85% 88%, rgba(164, 85, 44, 0.03), transparent 50%);
}

.reveal {
  font-family: var(--sans);
  font-size: 30px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.reveal .slides { text-align: left; }

.reveal .slides section {
  /* le slide respirano: niente centratura verticale forzata */
  height: 100%;
  padding: 0;
}

.reveal p { line-height: 1.55; margin: 0 0 0.7em; }
.reveal strong { font-weight: 650; color: var(--ink); }
.reveal em { font-style: italic; }

.reveal a { color: var(--accent); text-decoration: none;
  border-bottom: 1px solid rgba(14, 111, 99, 0.28); }
.reveal a:hover { border-bottom-color: var(--accent); }

/* ---------------------------------------------------------- tipografia --- */

.reveal h1, .reveal h2, .reveal h3, .reveal h4 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  text-transform: none;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 0.35em;
  text-shadow: none;
}

.reveal h1 { font-size: 2.55em; }
.reveal h2 { font-size: 1.72em; }
.reveal h3 { font-size: 1.18em; letter-spacing: -0.01em; }
.reveal h4 {
  font-family: var(--sans);
  font-size: 0.62em;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* Occhiello: etichetta mono + filetto, marca ogni slide */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.5em;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.85em;
  margin-bottom: 1.1em;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}
.eyebrow.is-dna { color: var(--dna); }

/* Sommario in serif, per gli attacchi di sezione */
.lede {
  font-family: var(--serif);
  font-size: 1.12em;
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 22em;
}

.note {
  font-size: 0.62em;
  line-height: 1.5;
  color: var(--ink-faint);
}
.note strong { color: var(--ink-soft); }

/* --------------------------------------------------------- impaginato --- */

/* Ogni slide ha lo stesso margine ottico e il contenuto centrato in verticale.
   Le varianti che impostano un proprio display (.cover, .divider, .grid-sidebar)
   sono dichiarate più avanti e vincono su questa regola. */
.pad {
  padding: 2.2rem 2.6rem;
  height: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.stack   { display: flex; flex-direction: column; gap: 1.1rem; }
.grid-2  { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; align-items: start; }
.grid-3  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; align-items: start; }
.grid-4  { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.9rem; align-items: start; }
.grid-sidebar { display: grid; grid-template-columns: 1.05fr 1fr; gap: 1.9rem; align-items: center; }
.grid-wide-left { display: grid; grid-template-columns: 1.8fr 1fr; gap: 1.7rem; align-items: center; }

/* Griglia di volti compatta: usata dove la slide ha già molto testo. */
.faces-sm img { max-height: 235px; }

.center-y { display: flex; flex-direction: column; justify-content: center; height: 100%; }

/* ------------------------------------------------------------- schede --- */

.card {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1.05rem 1.15rem;
}
.card h3 { font-family: var(--sans); font-size: 0.72em; font-weight: 650;
  letter-spacing: -0.01em; margin-bottom: 0.4em; }
.card p  { font-size: 0.6em; line-height: 1.5; color: var(--ink-soft); margin: 0; }
.card.is-accent { border-left: 2px solid var(--accent); }
.card.is-dna    { border-left: 2px solid var(--dna); background: var(--dna-wash); }
.card.is-sunk   { background: var(--paper-sunk); border-color: transparent; }

/* Scheda numerata (le pipeline) */
.step {
  position: relative;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}
.step .num {
  font-family: var(--mono);
  font-size: 0.5em;
  letter-spacing: 0.1em;
  color: var(--accent);
  position: absolute;
  top: 0.55rem;
  left: 0;
}
.step h3 { font-family: var(--serif); font-weight: 400; font-size: 0.95em;
  letter-spacing: -0.015em; margin-bottom: 0.3em; }
.step p { font-size: 0.56em; line-height: 1.5; color: var(--ink-soft); margin: 0; }

/* ------------------------------------------------------------- numeri --- */

.stat { display: flex; flex-direction: column; gap: 0.15rem; }
.stat .val {
  font-family: var(--serif);
  font-size: 1.9em;
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--accent-deep);
  font-variant-numeric: tabular-nums;
}
.stat .val small { font-size: 0.42em; letter-spacing: 0; color: var(--ink-faint); }
.stat .lab {
  font-family: var(--mono);
  font-size: 0.42em;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.stat.is-dna .val { color: var(--dna); }

/* -------------------------------------------------------------- media --- */

figure { margin: 0; }
figure img {
  display: block;
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
  box-shadow: 0 1px 2px rgba(23, 23, 26, 0.05),
              0 10px 26px -14px rgba(23, 23, 26, 0.28);
}
.reveal section img { margin: 0; }

figcaption {
  font-family: var(--mono);
  font-size: 0.4em;
  letter-spacing: 0.055em;
  color: var(--ink-faint);
  margin-top: 0.7em;
  line-height: 1.5;
  display: flex;
  gap: 0.7em;
}
figcaption b {
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
}
figcaption.is-dna b { color: var(--dna); }

/* Volti: quadrati, senza bordo pesante */
.face img { aspect-ratio: 1; object-fit: cover; border-radius: 2px; }

.reveal video {
  display: block;
  width: 100%;
  /* Spazio riservato prima del caricamento: l'impaginato non salta, e se un
     browser non decodifica il video resta il poster con le stesse proporzioni.
     Le registrazioni non hanno tutte lo stesso formato: chi differisce dal
     default lo dichiara con .is-wide. */
  aspect-ratio: 1468 / 812;
  object-fit: cover;
  background: var(--paper-sunk);
  border: 1px solid var(--rule);
  border-radius: 2px;
  box-shadow: 0 1px 2px rgba(23, 23, 26, 0.05),
              0 14px 34px -16px rgba(23, 23, 26, 0.32);
}

/* -------------------------------------------------------------- prompt -- */

.prompt {
  font-family: var(--mono);
  font-size: 0.44em;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--paper-sunk);
  border-left: 2px solid var(--accent);
  padding: 0.85rem 1rem;
  border-radius: 0 2px 2px 0;
  word-break: break-word;
}
.prompt .hl  { color: var(--accent-deep); font-weight: 600;
  background: rgba(14, 111, 99, 0.09); padding: 0 0.18em; border-radius: 2px; }
.prompt .hl-dna { color: var(--dna); font-weight: 600;
  background: rgba(164, 85, 44, 0.1); padding: 0 0.18em; border-radius: 2px; }
.prompt .neg { color: var(--ink-faint); }
.prompt.is-dna { border-left-color: var(--dna); }

/* JSON del metafile */
.code {
  font-family: var(--mono);
  font-size: 0.4em;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--paper-sunk);
  padding: 0.9rem 1rem;
  border-radius: 2px;
  border: 1px solid var(--rule);
  white-space: pre;
  overflow-x: auto;
}
.code .k { color: var(--accent-deep); }
.code .s { color: var(--dna); }
.code .n { color: var(--ink); font-weight: 600; }
.code .c { color: var(--ink-faint); font-style: italic; }

/* -------------------------------------------------------------- tabelle - */

.reveal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.5em;
  margin: 0;
  /* Respiro orizzontale delle celle. In em, così le tabelle piccole dentro le
     schede scalano insieme al testo invece di restare troppo ariose. */
  --cell-x: 0.7em;
}
.reveal table th {
  font-family: var(--mono);
  font-size: 0.82em;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-align: left;
  padding: 0 var(--cell-x) 0.6em;
  border-bottom: 1px solid var(--rule-strong);
}
.reveal table td {
  padding: 0.62em var(--cell-x);
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
  line-height: 1.4;
  vertical-align: top;
}
.reveal table tr:last-child td { border-bottom: none; }
.reveal table td:first-child { color: var(--ink); font-weight: 550; }
.reveal table td .mono { font-family: var(--mono); font-size: 0.9em; }
.reveal table tr.is-current td { background: var(--accent-wash); }
.reveal table tr.is-current td:first-child { box-shadow: inset 2px 0 0 var(--accent); }

/* Pastiglie di stato */
.pill {
  font-family: var(--mono);
  font-size: 0.85em;
  letter-spacing: 0.05em;
  padding: 0.15em 0.5em;
  border-radius: 2px;
  white-space: nowrap;
}
.pill.ok   { background: var(--accent-wash); color: var(--accent-deep); }
.pill.no   { background: #f3eeea; color: #97614a; }
.pill.warn { background: var(--dna-wash); color: var(--dna); }

/* --------------------------------------------------------- riferimenti -- */

.refs { display: flex; flex-direction: column; gap: 0.55rem; }
.ref {
  display: grid;
  grid-template-columns: 5.6em 1fr;
  gap: 0.9em;
  align-items: baseline;
  font-size: 0.5em;
  line-height: 1.45;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--rule);
}
.ref .id {
  font-family: var(--mono);
  font-size: 0.85em;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.ref .ti { color: var(--ink); }
.ref .me { color: var(--ink-faint); display: block; margin-top: 0.15em; }

/* ------------------------------------------------------------- catena --- */

/* La catena DNA → identikit, usata nella slide di sintesi */
.chain { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; align-items: stretch; }
.chain .link {
  position: relative;
  padding: 1rem 1.1rem 1rem 0;
  border-top: 2px solid var(--rule);
}
.chain .link:nth-child(-n+3) { border-top-color: var(--dna); }
.chain .link:nth-child(n+4)  { border-top-color: var(--accent); }
.chain .link .k {
  font-family: var(--mono);
  font-size: 0.4em;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.5em;
}
.chain .link .t {
  font-family: var(--serif);
  font-size: 0.78em;
  line-height: 1.2;
  letter-spacing: -0.015em;
  display: block;
  margin-bottom: 0.35em;
}
.chain .link .d { font-size: 0.48em; line-height: 1.45; color: var(--ink-soft); }
.chain .link .owner {
  font-family: var(--mono);
  font-size: 0.36em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.6em;
  display: block;
}
.chain .link:nth-child(-n+3) .owner { color: var(--dna); }
.chain .link:nth-child(n+4)  .owner { color: var(--accent); }

/* --------------------------------------------- animazione di denoising -- */

/* Mostra "a schermo" cosa fa un diffusion model: rumore → volto.
   Nessuna GIF: è la vera immagine generata, sfocata a step. */
.denoise {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: #6b6b6b;
}
.denoise img {
  display: block;
  width: 100%;
  border: 0;
  box-shadow: none;
  animation: denoise-img 5.2s steps(1, end) infinite;
}
.denoise::after {
  content: "";
  position: absolute;
  inset: 0;
  /* Vero rumore frattale: SVG feTurbulence inline, nessuna risorsa esterna. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  mix-blend-mode: overlay;
  animation: denoise-noise 5.2s steps(1, end) infinite;
  pointer-events: none;
}
.denoise .tick {
  position: absolute;
  left: 0.6rem;
  bottom: 0.55rem;
  font-family: var(--mono);
  font-size: 0.36em;
  letter-spacing: 0.11em;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.2em 0.5em;
  border-radius: 2px;
  backdrop-filter: blur(2px);
}
.denoise .tick::after {
  content: "t = 25";
  animation: denoise-tick 5.2s steps(1, end) infinite;
}

@keyframes denoise-img {
  0%   { filter: blur(26px) saturate(0.15) contrast(0.7); }
  16%  { filter: blur(17px) saturate(0.35) contrast(0.82); }
  32%  { filter: blur(10px) saturate(0.6)  contrast(0.92); }
  48%  { filter: blur(5.5px) saturate(0.8) contrast(1); }
  64%  { filter: blur(2.5px) saturate(0.92) contrast(1.02); }
  80%  { filter: blur(0.8px) saturate(1)   contrast(1.02); }
  92%, 100% { filter: none; }
}
@keyframes denoise-noise {
  0%   { opacity: 0.85; }
  16%  { opacity: 0.62; }
  32%  { opacity: 0.42; }
  48%  { opacity: 0.26; }
  64%  { opacity: 0.14; }
  80%  { opacity: 0.06; }
  92%, 100% { opacity: 0; }
}
@keyframes denoise-tick {
  0%   { content: "t = 25 · rumore puro"; }
  16%  { content: "t = 20"; }
  32%  { content: "t = 15"; }
  48%  { content: "t = 10"; }
  64%  { content: "t = 6"; }
  80%  { content: "t = 3"; }
  92%, 100% { content: "t = 0 · identikit"; }
}

/* ------------------------------------------------------- copertina ------ */

.cover { height: 100%; display: grid; grid-template-columns: 1.15fr 1fr;
  gap: 3rem; align-items: center; }
.cover h1 { font-size: 3.1em; margin-bottom: 0.28em; }
.cover .sub {
  font-family: var(--serif);
  font-size: 1.02em;
  line-height: 1.35;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
  max-width: 15em;
}
.cover .meta {
  font-family: var(--mono);
  font-size: 0.44em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-top: 1px solid var(--rule);
  padding-top: 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.45em;
}
.cover .meta b { color: var(--accent); font-weight: 500; }

/* Griglia di volti della copertina */
.face-wall { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.55rem; }
.face-wall img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 2px;
  box-shadow: 0 10px 26px -16px rgba(23, 23, 26, 0.4);
}

/* --------------------------------------------------- attacchi sezione --- */

.divider { height: 100%; display: flex; flex-direction: column;
  justify-content: center; }
.divider .kicker {
  font-family: var(--mono);
  font-size: 0.46em;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.divider.is-dna .kicker { color: var(--dna); }
.divider h2 { font-size: 2.5em; max-width: 13em; }
.divider .lede { margin-top: 0.9rem; font-size: 1.02em; }
.divider .rule { width: 3.5rem; height: 2px; background: var(--accent);
  margin-bottom: 1.4rem; }
.divider.is-dna .rule { background: var(--dna); }

/* ------------------------------------------------- cronologia / passi --- */

.flow { display: flex; align-items: stretch; gap: 0; }
.flow .node {
  flex: 1;
  padding: 0.95rem 1rem 0.95rem 0;
  border-top: 1px solid var(--rule);
  position: relative;
}
.flow .node::before {
  content: "";
  position: absolute;
  top: -4px; left: 0;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.flow .node.is-off::before { background: var(--rule-strong); }
.flow .node .n {
  font-family: var(--mono); font-size: 0.4em; letter-spacing: 0.12em;
  color: var(--ink-faint); display: block; margin-bottom: 0.45em;
}
.flow .node .t { font-size: 0.6em; font-weight: 600; display: block;
  margin-bottom: 0.25em; }
.flow .node .d { font-size: 0.48em; line-height: 1.4; color: var(--ink-soft); }

/* ------------------------------------------------------- frammenti ------ */

/* Entrate discrete, da stampa: nessun rimbalzo. */
.reveal .fragment.fade-up {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s cubic-bezier(0.2, 0.7, 0.3, 1),
              transform 0.5s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.reveal .fragment.fade-up.visible { opacity: 1; transform: none; }

.reveal .fragment.rule-in {
  opacity: 1;
  clip-path: inset(0 100% 0 0);
  transition: clip-path 0.65s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.reveal .fragment.rule-in.visible { clip-path: inset(0 0 0 0); }

.reveal .fragment.mark {
  transition: background-color 0.4s ease, color 0.4s ease;
}
.reveal .fragment.mark.visible {
  background: var(--accent-wash);
  color: var(--accent-deep);
  box-shadow: inset 2px 0 0 var(--accent);
}

/* --------------------------------------------------------- cromatura --- */

/* Numerazione e barra di avanzamento in stile editoriale */
.reveal .progress {
  height: 2px;
  color: var(--accent);
  background: rgba(222, 218, 209, 0.6);
}
.reveal .slide-number {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.1em;
  background: none;
  color: var(--ink-faint);
  right: 18px;
  bottom: 14px;
}
.reveal .controls { color: var(--rule-strong); }
.reveal .controls .navigate-right.highlight,
.reveal .controls .navigate-down.highlight { color: var(--accent); }

/* Segnale che la slide ha approfondimenti sotto */
.deeper {
  position: absolute;
  left: 2.6rem;
  bottom: 1.5rem;
  font-family: var(--mono);
  font-size: 0.36em;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 0.6em;
}
.deeper::before { content: "↓"; color: var(--accent); font-size: 1.15em; }

/* Etichetta "approfondimento" sulle slide verticali */
.sub-tag {
  font-family: var(--mono);
  font-size: 0.4em;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.28em 0.6em;
  display: inline-block;
  margin-bottom: 1rem;
}

/* Stampa/PDF: niente ombre inutili */
@media print {
  .reveal video, figure img { box-shadow: none; }
}

/* ------------------------------------------------ paper "spiegati" ------ */

/* Scheda di un lavoro scientifico: non solo la citazione, ma il problema che
   risolveva e il ruolo che ha dentro Diff-FIT. */
.paper {
  border-top: 2px solid var(--accent);
  padding-top: 0.9rem;
}
.paper .cite {
  font-family: var(--mono);
  font-size: 0.4em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.5em;
}
.paper .cite b { color: var(--accent); font-weight: 500; }
.paper h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 0.92em;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin-bottom: 0.6em;
}
.paper dl { margin: 0; font-size: 0.5em; line-height: 1.5; }
.paper dt {
  font-family: var(--mono);
  font-size: 0.8em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0.75em;
}
.paper dt:first-child { margin-top: 0; }
.paper dd { margin: 0.2em 0 0; color: var(--ink-soft); }
.paper dd b { color: var(--ink); font-weight: 600; }

/* -------------------------------------------------------- glossario ----- */

/* Definizione breve di un termine tecnico, da mettere accanto a dove compare. */
.terms { display: flex; flex-direction: column; gap: 0.75rem; }
.term {
  display: grid;
  grid-template-columns: 8.5em 1fr;
  gap: 1em;
  align-items: baseline;
  font-size: 0.52em;
  line-height: 1.5;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule);
}
.term:last-child { border-bottom: none; padding-bottom: 0; }
.term .w {
  font-family: var(--mono);
  font-size: 0.88em;
  letter-spacing: 0.03em;
  color: var(--accent-deep);
  font-weight: 500;
}
.term .m { color: var(--ink-soft); }
.term .m b { color: var(--ink); font-weight: 600; }
.terms.is-dna .term .w { color: var(--dna); }

/* Riquadro "in una riga": la definizione minima di un concetto. */
.oneline {
  font-size: 0.56em;
  line-height: 1.55;
  color: var(--ink-soft);
  background: var(--paper-sunk);
  border-left: 2px solid var(--rule-strong);
  padding: 0.7rem 0.9rem;
  border-radius: 0 2px 2px 0;
}
.oneline b { color: var(--ink); font-weight: 600; }

/* Confronto sulla mascella: il crop deve tenere il mento, non la fronte. */
.faces-jaw img {
  max-height: 232px;
  object-position: center 78%;
}

/* La demo AiDNA EVC è stata registrata con una finestra più bassa e larga. */
.reveal video.is-wide { aspect-ratio: 1568 / 670; }

/* --------------------------------------------------------- ciclo -------- */

/* Il ciclo operativo: passi in fila, l'ultimo rimanda al primo. */
.cycle { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
.cyc {
  position: relative;
  padding: 1.05rem 1.1rem 1rem 0;
  border-top: 2px solid var(--accent);
}
.cyc.is-dna { border-top-color: var(--dna); }
.cyc .n {
  font-family: var(--mono);
  font-size: 0.42em;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.5em;
}
.cyc.is-dna .n { color: var(--dna); }
.cyc .t {
  font-family: var(--serif);
  font-size: 0.86em;
  line-height: 1.15;
  letter-spacing: -0.015em;
  display: block;
  margin-bottom: 0.4em;
}
.cyc .d { font-size: 0.5em; line-height: 1.5; color: var(--ink-soft); }
.cyc .d b { color: var(--ink); font-weight: 600; }
/* L'ultimo passo torna all'inizio: freccia di richiamo */
.cyc:last-child::after {
  content: "↺";
  position: absolute;
  top: -0.95rem; right: 0.7rem;
  font-size: 0.7em;
  color: var(--accent);
}

/* ------------------------------------------------------------ formule --- */

/* Formula isolata: serve a farla leggere, non a decorarla. */
.formula {
  font-family: var(--mono);
  font-size: 0.62em;
  line-height: 1.5;
  text-align: center;
  color: var(--ink);
  background: var(--paper-sunk);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.85rem 1rem;
  margin: 0;
}
.formula .var { color: var(--accent-deep); font-weight: 600; }
.formula .dim { color: var(--ink-faint); }
.formula .gloss {
  display: block;
  font-family: var(--sans);
  font-size: 0.72em;
  color: var(--ink-faint);
  margin-top: 0.5em;
  letter-spacing: 0;
}

/* Passaggio numerato di un ragionamento */
.beat { border-top: 2px solid var(--accent); padding-top: 0.8rem; }
.beat .k {
  font-family: var(--mono);
  font-size: 0.42em;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5em;
}
.beat .t {
  font-family: var(--serif);
  font-size: 0.8em;
  line-height: 1.2;
  letter-spacing: -0.015em;
  display: block;
  margin-bottom: 0.35em;
}
.beat .d { font-size: 0.5em; line-height: 1.5; color: var(--ink-soft); }
.beat .d b { color: var(--ink); font-weight: 600; }

/* Tabella compatta: molte righe in poca altezza, per le slide di confronto. */
.tbl-mini table { font-size: 0.42em; }
.tbl-mini td { padding: 0.34em var(--cell-x); }
.tbl-mini th { padding-bottom: 0.45em; }