/* Linea C, Sala: la home è una sala immersiva aperta (quattro pareti e un pavimento); le immagini sono pareti, i testi stanno sul nero. */
:root {
  /* palette: nero di sala, pareti in grafite, luce di proiezione */
  --void: #000000;
  --wall: #121416;
  --light: #eeeeea;
  --dim: #c8cac6;
  --ash: #8d9297;
  --rule: rgba(238, 238, 234, 0.15);
  /* tipografia: un'unica famiglia condensata, mono per le etichette di sala */
  --sans: "IBM Plex Sans Condensed", "Arial Narrow", "Roboto Condensed", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  /* scala su 18px */
  --t-xs: 0.78rem;
  --t-s: 0.9rem;
  --t-m: 1.06rem;
  --t-l: 1.4rem;
  --t-xl: 1.8rem;
  --t-2xl: clamp(2rem, 4vw, 3.4rem);
  --t-3xl: clamp(2.6rem, 6.4vw, 6rem);
  --seam: 6px;
  --gutter: clamp(16px, 4vw, 56px);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--void);
  color: var(--light);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.2em; text-decoration-color: var(--ash); }
a:hover { text-decoration-color: var(--light); }
:focus-visible { outline: 1px solid var(--light); outline-offset: 4px; }
h1, h2, h3 { font-weight: 300; text-wrap: balance; margin: 0; }
p { margin: 0; }
img { max-width: 100%; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--gutter); top: 12px; z-index: 10; background: var(--void); padding: 6px 10px; }
.wrap { width: 100%; max-width: 1440px; margin-inline: auto; padding-inline: var(--gutter); }

/* ------------------------------------------------ navigazione */
.nav { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 28px; padding-block: 18px; }
.nav__name { font-weight: 600; font-size: 1.05rem; text-decoration: none; letter-spacing: 0.01em; }
.nav__links { display: flex; flex-wrap: wrap; gap: 6px 20px; list-style: none; margin: 0; padding: 0; font-size: var(--t-m); }
.nav__links a { text-decoration: none; color: var(--ash); }
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--light); }
.nav__links a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--ash); }
.nav__lang { color: var(--dim) !important; }

/* ------------------------------------------------ sala */
.room {
  height: calc(100svh - 64px); min-height: 560px; max-height: 1100px;
  padding: 0 clamp(8px, 1vw, 14px) clamp(8px, 1vw, 14px);
  display: grid; gap: var(--seam);
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.3fr) minmax(0, 1fr) minmax(0, 0.75fr);
  grid-template-rows: minmax(0, 1fr) minmax(0, 0.42fr);
  grid-template-areas: "l f r b" "l fl r b";
}
.ch { position: relative; overflow: hidden; background: var(--wall); }
.ch img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 1.8s ease;
  animation: breath var(--d, 34s) ease-in-out infinite alternate;
}
.ch img.on { opacity: 1; }
@keyframes breath { from { transform: scale(1.02); } to { transform: scale(1.12) translate(-1.5%, 1%); } }
.ch.sync::after { content: ""; position: absolute; inset: 0; background: var(--light); opacity: 0; animation: flash 0.9s ease-out; pointer-events: none; }
@keyframes flash { 0% { opacity: 0.18; } 100% { opacity: 0; } }
/* veli di colore sulla sala: ogni canale ha il suo colore, tratto dalla palette delle Membrane, che appare e scompare
   su livelli diversi di trasparenza, con ritmi sfasati fra i canali */
.ch::before { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; background: var(--veil, transparent);
  mix-blend-mode: color; opacity: 0; animation: veil var(--vd, 24s) ease-in-out var(--vdl, 0s) infinite; }
@keyframes veil {
  0% { opacity: 0; } 16% { opacity: var(--va, .5); } 30% { opacity: calc(var(--va, .5) * .35); } 44% { opacity: 0; }
  60% { opacity: calc(var(--va, .5) * .75); } 76% { opacity: calc(var(--va, .5) * .2); } 88% { opacity: calc(var(--va, .5) * .5); } 100% { opacity: 0; } }
.ch--l  { --veil: #1e6aa6; --va: .62; --vd: 23s; --vdl: -3s; }
.ch--f  { --veil: #ca4d35; --va: .48; --vd: 31s; --vdl: -17s; }
.ch--r  { --veil: #1d90b7; --va: .66; --vd: 19s; --vdl: -9s; }
.ch--b  { --veil: #a84874; --va: .58; --vd: 27s; --vdl: -21s; }
.ch--fl { --veil: #374b8c; --va: .5; --vd: 35s; --vdl: -12s; }
.ch--l { grid-area: l; } .ch--f { grid-area: f; } .ch--r { grid-area: r; } .ch--b { grid-area: b; } .ch--fl { grid-area: fl; }
.ch--fl .id {
  position: absolute; inset: auto 0 0 0; z-index: 3; padding: 16px 18px 14px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0));
  display: flex; justify-content: space-between; align-items: end; gap: 10px 18px; flex-wrap: wrap;
}
.ch--fl h1 { font-weight: 300; font-size: clamp(2.4rem, 5.6vw, 6rem); line-height: 0.86; letter-spacing: -0.025em; }
.ch--fl .id p { font-size: var(--t-s); color: var(--dim); text-align: right; }

/* ------------------------------------------------ sezioni */
.section { padding-block: clamp(72px, 11vw, 150px) 0; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.3fr) minmax(0, 1.2fr); gap: 24px 40px; }
.split > * { min-width: 0; }
.split > :nth-child(2) { grid-column: 2 / span 2; }
.kicker { font-size: var(--t-xl); font-weight: 300; color: var(--dim); letter-spacing: -0.01em; }
.statement { font-size: clamp(1.6rem, 2.9vw, 2.6rem); font-weight: 300; line-height: 1.18; max-width: 30ch; }
.lead { font-size: var(--t-l); line-height: 1.42; font-weight: 300; max-width: 50ch; color: var(--dim); }
.h-sec { font-size: var(--t-2xl); font-weight: 300; letter-spacing: -0.02em; line-height: 1; }
.h-sec a { text-decoration: none; }
.sec-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 14px 40px; margin-bottom: 30px; }
.sec-head .lead { max-width: 52ch; }
.more { display: inline-block; margin-top: 26px; font-size: var(--t-m); }
.sec-head .more { margin-top: 0; }
.links { display: flex; flex-wrap: wrap; gap: 0 26px; }
.ext { display: inline-block; margin-top: 10px; font-family: var(--mono); font-size: var(--t-xs); color: var(--dim); text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 2px; }
.ext:hover { color: var(--light); border-bottom-color: var(--dim); }
.index__ext { display: inline-block; font-family: var(--mono); font-size: var(--t-xs); color: var(--dim); text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 2px; }
.index__ext:hover, .index__ext:focus-visible { color: var(--light); border-bottom-color: var(--dim); }

/* ------------------------------------------------ corridoio delle opere */
.hall { position: relative; margin-top: clamp(72px, 11vw, 150px); }
.hall .stick { position: sticky; top: 0; height: 100svh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.hall__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 10px 40px; padding-bottom: 22px; }
.hall__head p { color: var(--ash); max-width: 44ch; font-size: var(--t-m); }
.track { display: flex; gap: var(--seam); padding-inline: var(--gutter); will-change: transform; }
.track .wall { flex: 0 0 min(74vw, 1180px); }
.wall { min-width: 0; }
.wall__img { display: block; }
.wall .plate { aspect-ratio: 16 / 9; background: var(--wall); }
.wall .plate img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2, .7, .1, 1); }
.wall:hover .plate img { transform: scale(1.03); }
.wall__cap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 6px 24px; padding-top: 14px; }
.wall h3 { font-size: 1.7rem; font-weight: 400; line-height: 1.04; }
.wall h3 a { text-decoration: none; }
.wall h3 a:hover { text-decoration: underline; text-decoration-color: var(--ash); }
.wall h3 span { display: block; font-weight: 300; color: var(--ash); }
.wall__cap p { font-size: var(--t-m); color: var(--dim); max-width: 46ch; }
.wall__cap .k { font-family: var(--mono); font-size: 11px; color: var(--ash); margin-top: 6px; }
.walls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(48px, 6vw, 80px) var(--seam); }
.walls .wall__cap { grid-template-columns: minmax(0, 1fr); padding-right: 16px; }

/* ------------------------------------------------ palinsesto degli eventi */
.pal-wrap { overflow-x: auto; }
.pal { width: 100%; border-collapse: collapse; }
.pal th, .pal td { padding: 16px 18px 16px 0; border-top: 1px solid var(--rule); text-align: left; vertical-align: middle; font-weight: 400; }
.pal tr:last-child th, .pal tr:last-child td { border-bottom: 1px solid var(--rule); }
.pal th { font-family: var(--mono); font-size: 12px; color: var(--ash); white-space: nowrap; width: 1%; font-variant-numeric: tabular-nums; }
.pal td.t { font-size: var(--t-l); font-weight: 300; }
.pal td.t a { text-decoration: none; }
.pal td.t a:hover { text-decoration: underline; text-decoration-color: var(--ash); }
.pal td.w { color: var(--ash); }
.pal td.i { width: 220px; padding-right: 0; }
.pal .plate { width: 220px; aspect-ratio: 16 / 9; }
.pal .plate img { width: 100%; height: 100%; object-fit: cover; }

/* ------------------------------------------------ concetti come pareti */
.concepts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--seam); }
.concept { background: var(--wall); padding: 26px 24px 30px; }
.concept h3 { font-size: 1.6rem; font-weight: 400; line-height: 1.1; }
.concept .en { color: var(--ash); font-size: var(--t-s); margin-top: 2px; }
.concept p { margin-top: 12px; color: var(--dim); font-size: var(--t-m); }
.concept .origin { margin-top: 14px; font-size: 11px; color: var(--ash); font-family: var(--mono); }

/* libro in home */
.bk { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 40px; align-items: end; }
.bk .lead { color: var(--light); }

/* ------------------------------------------------ footer */
.footer { border-top: 1px solid var(--rule); margin-top: clamp(80px, 12vw, 160px); padding-block: 40px 56px; }
.footer__grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 32px 48px; }
.footer__grid > * { min-width: 0; }
.footer h2 { font-size: var(--t-s); color: var(--ash); font-weight: 400; margin-bottom: 10px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; font-size: var(--t-s); }
.email { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px 18px; }
.email__addr { font-size: var(--t-xl); font-weight: 300; user-select: all; overflow-wrap: anywhere; }
.btn { font: inherit; font-size: var(--t-xs); font-family: var(--mono); color: var(--light); background: transparent; border: 1px solid var(--rule); border-radius: 999px; padding: 4px 12px; cursor: pointer; }
.btn:hover { border-color: var(--ash); }
.footer__small { margin-top: 36px; font-size: var(--t-xs); color: var(--ash); }
.footer__small a { color: var(--ash); text-decoration: none; border-bottom: 1px solid var(--rule); }
.footer__small a:hover, .footer__small a:focus-visible { color: var(--light); }
.legal p { max-width: 66ch; line-height: 1.66; }
.legal p + p { margin-top: 1em; }
.legal a { color: var(--light); }

/* ------------------------------------------------ pagine interne */
.page-head { padding-block: clamp(36px, 6vw, 84px) 0; }
.crumb { font-size: var(--t-s); color: var(--ash); }
.crumb a { color: var(--dim); }
.title-xl { margin-top: 14px; font-size: var(--t-3xl); font-weight: 300; line-height: 0.92; letter-spacing: -0.03em; }
.title-xl .sub { display: block; color: var(--ash); font-weight: 300; }
.thesis { margin-top: 24px; font-size: clamp(1.25rem, 2.1vw, 1.65rem); line-height: 1.32; font-weight: 300; max-width: 42ch; color: var(--dim); }

.plate { margin: 0; background: var(--wall); overflow: hidden; }
.plate img { display: block; width: 100%; height: auto; }
.plate figcaption { font-size: var(--t-xs); color: var(--ash); margin-top: 10px; }
.plate--wall { margin-top: clamp(36px, 5vw, 64px); }
/* Eventi e Opere: profilo grigio sottilissimo attorno alle immagini */
.event .plate, .wall .plate, .work .plate--wall, .plate--wall { outline: 1px solid rgba(238, 238, 234, .22); outline-offset: 0; }
.plate--wide { margin-top: clamp(36px, 5vw, 64px); }
/* immagine del libro: sfuma sul fondo nero da tutti i lati */
.plate--fade { background: transparent; outline: 0; }
.plate--fade img {
  -webkit-mask-image: linear-gradient(to right, transparent, #000 14%, #000 86%, transparent), linear-gradient(to bottom, transparent, #000 16%, #000 84%, transparent);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to right, transparent, #000 14%, #000 86%, transparent), linear-gradient(to bottom, transparent, #000 16%, #000 84%, transparent);
  mask-composite: intersect;
}

.work { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr); gap: 40px 64px; margin-top: clamp(40px, 6vw, 80px); }
.work > * { min-width: 0; }
.facts { margin: 0; display: grid; gap: 16px; align-content: start; position: sticky; top: 24px; }
.facts dt { font-family: var(--mono); font-size: 11px; color: var(--ash); }
.facts dd { margin: 3px 0 0; font-size: var(--t-m); color: var(--dim); }
.prose { display: grid; gap: 40px; }
.prose h2 { font-size: var(--t-l); font-weight: 400; margin-bottom: 10px; }
.prose p { max-width: 66ch; line-height: 1.66; }
.prose p + p { margin-top: 1em; }
.media-slot { aspect-ratio: 16 / 9; max-width: 100%; display: grid; place-items: center; text-align: center; border: 1px dashed var(--rule); color: var(--ash); font-size: var(--t-s); padding: 16px; margin-top: clamp(36px, 5vw, 64px); }

.specs { overflow-x: auto; }
.specs table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: var(--t-xs); }
.specs th, .specs td { text-align: left; vertical-align: top; padding: 10px 16px 10px 0; border-top: 1px solid var(--rule); }
.specs th { font-weight: 400; color: var(--ash); width: 32%; }
.specs td { color: var(--dim); }
.others { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 10px; font-size: var(--t-l); font-weight: 300; }

/* teoria */
.tripart { font-size: clamp(1.4rem, 2.6vw, 2.1rem); font-weight: 300; line-height: 1.25; max-width: 34ch; }
.glossary { margin: 44px 0 0; border-top: 1px solid var(--rule); }
.glossary > div { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr); gap: 12px 56px; padding-block: 26px; border-bottom: 1px solid var(--rule); }
.glossary dt h3 { font-size: var(--t-xl); font-weight: 400; line-height: 1.08; }
.glossary dt .en { color: var(--ash); font-size: var(--t-s); margin-top: 4px; }
.glossary dd { margin: 0; max-width: 64ch; }
.glossary dd .origin { display: block; margin-top: 10px; font-family: var(--mono); font-size: 11px; color: var(--ash); }
.genealogy { font-size: clamp(1.15rem, 1.9vw, 1.45rem); font-weight: 300; line-height: 1.55; max-width: 56ch; }
.note { margin-top: 12px; color: var(--ash); font-size: var(--t-s); max-width: 60ch; }
.biblio { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 22px; }
.biblio li { display: grid; grid-template-columns: 18ch minmax(0, 1fr); gap: 4px 24px; }
.biblio .when { font-family: var(--mono); font-size: 12px; color: var(--ash); padding-top: 0.3em; font-variant-numeric: tabular-nums; }
.biblio .what { font-size: var(--t-m); }
.biblio .what small { display: block; color: var(--ash); font-size: var(--t-xs); margin-top: 2px; }
.essays li.essay { grid-template-columns: 220px 15ch minmax(0, 1fr); align-items: start; }
.essay__img { display: block; }
.essay__img .plate { aspect-ratio: 16 / 9; }
.essay__img img { aspect-ratio: 16 / 9; object-fit: cover; transition: transform .6s ease; }
.essay:hover .essay__img img { transform: scale(1.04); }

/* libro */
.claim { font-size: clamp(1.7rem, 3.6vw, 3rem); font-weight: 300; line-height: 1.12; letter-spacing: -0.015em; max-width: 26ch; margin-top: 24px; }
.book-site { margin-top: 24px; }
.preface { margin: 0; padding: 26px 28px; background: var(--wall); font-size: var(--t-l); font-weight: 300; font-style: italic; line-height: 1.5; max-width: 56ch; color: var(--dim); }
.movements { list-style: none; padding: 0; margin: 10px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--seam); }
.movements li { background: var(--wall); padding: 22px 22px 26px; }
.movements .num { font-family: var(--mono); font-size: 12px; color: var(--ash); }
.movements h3 { font-size: var(--t-l); font-weight: 400; margin-top: 6px; }
.movements p { margin-top: 8px; color: var(--dim); font-size: var(--t-s); }
.covers { display: grid; grid-template-columns: repeat(2, minmax(0, 220px)); gap: 24px; margin-top: 10px; }
.cover { background: none; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.9); }
.editions { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.editions li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; padding-block: 14px; border-top: 1px solid var(--rule); }
.editions .ed { font-size: var(--t-m); }
.editions .fmt { color: var(--ash); font-size: var(--t-s); }

/* eventi */
.events { display: grid; gap: clamp(80px, 11vw, 150px); }
.event { border-top: 1px solid var(--rule); padding-top: 24px; scroll-margin-top: 24px; }
.event__when { font-family: var(--mono); font-size: 12px; color: var(--ash); }
.event__title { font-size: var(--t-2xl); font-weight: 300; line-height: 1; letter-spacing: -0.02em; margin-top: 10px; }

/* bio */
.bio p { max-width: 66ch; line-height: 1.68; }
.bio p + p { margin-top: 1.1em; }
.cv { margin: 0; display: grid; gap: 14px; }
.cv > div { display: grid; grid-template-columns: 7ch minmax(0, 1fr); gap: 4px 24px; }
.cv dt { font-family: var(--mono); font-size: 12px; color: var(--ash); padding-top: 0.3em; }
.cv dd { margin: 0; }
.plain { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }

/* ------------------------------------------------ schermi stretti */
@media (max-width: 980px) {
  .concepts, .movements { grid-template-columns: minmax(0, 1fr); }
  .work, .glossary > div { grid-template-columns: minmax(0, 1fr); }
  .facts { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
  .split > :nth-child(2) { grid-column: auto; }
  .split > div:empty { display: none; }
}
@media (max-width: 860px) {
  .room {
    height: auto; max-height: none; min-height: 0;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: 56vw 34vw 52vw 22vw;
    grid-template-areas: "f f" "l r" "fl fl" "b b";
  }
  .ch--fl .id { display: block; }
  .ch--fl .id p { text-align: left; margin-top: 8px; }
  .hall .stick { position: static; height: auto; display: block; }
  .track { overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
  .track .wall { flex-basis: 86vw; scroll-snap-align: start; }
  .wall__cap { grid-template-columns: minmax(0, 1fr); }
  .walls { grid-template-columns: minmax(0, 1fr); }
  .pal td.i, .pal th { display: none; }
  .pal td.w { display: block; padding-top: 0; border-top: 0; }
  .pal td.t { display: block; padding-bottom: 4px; }
  .pal tr { display: block; border-top: 1px solid var(--rule); padding-block: 12px; }
  .pal tr td { border-top: 0; }
  .pal tr:last-child td { border-bottom: 0; }
  .bk { grid-template-columns: 120px minmax(0, 1fr); gap: 22px; }
  .footer__grid, .editions { grid-template-columns: minmax(0, 1fr); }
  .facts { grid-template-columns: minmax(0, 1fr); }
  .biblio li, .essays li.essay { grid-template-columns: minmax(0, 1fr); }
  .covers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .ch img { animation: none; transition: none; }
  .ch.sync::after { animation: none; }
  .ch::before { animation: none; opacity: calc(var(--va, .5) * .3); }
  .wall .plate img, .essay__img img { transition: none; }
}
.others i { font-style: normal; color: var(--ash); }

/* ------------------------------------------------ membrana in apertura delle pagine interne */
.hero { position: relative; min-height: clamp(340px, 62vh, 680px); display: flex; align-items: flex-end; overflow: hidden; isolation: isolate; }
.hero__img { position: absolute; inset: 0; z-index: -1; }
.hero__img img { width: 100%; height: 100%; object-fit: cover; display: block; animation: drift 60s ease-in-out infinite alternate; }
.hero__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(0,0,0,.35) 0%, rgba(0,0,0,0) 30%, rgba(0,0,0,.25) 55%, var(--void) 100%); }
@keyframes drift { from { transform: scale(1.04); } to { transform: scale(1.14) translate(-2%, 1%); } }
.hero__in { padding-block: clamp(90px, 14vh, 160px) clamp(28px, 4vw, 48px); }
.hero__in .title-xl, .hero__in .claim, .hero__in .thesis { text-shadow: 0 2px 24px rgba(0, 0, 0, 0.55); }
.hero__in .thesis { color: var(--light); }
.hero__in .crumb, .hero__in .crumb a { color: var(--light); }
@media (prefers-reduced-motion: reduce) { .hero__img img { animation: none; } }
.hero__in .title-xl .sub { color: var(--dim); }

/* ------------------------------------------------ reticoli in movimento */
.room { position: relative; }
.ret-cv { position: absolute; inset: 0; width: 100%; height: 100%; display: block; pointer-events: none; }
.ret-seams { z-index: 4; }
.ch--b.is-live .ret-wall { z-index: 3; background: var(--void); }
.hero__img .ret-hero { z-index: 0; }
.ret-band { position: relative; height: clamp(120px, 20vh, 220px); margin-top: clamp(48px, 7vw, 100px); }
.ret-band:not([hidden]) + .hall { margin-top: 0; }


/* reticolo 3D delle pagine interne */
.ret-panel { position: relative; height: clamp(300px, 58vh, 640px); overflow: hidden; background: var(--void); }
.ret3d { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.ret3d-hud { position: absolute; left: var(--gutter); bottom: 26px; margin: 0; font-family: var(--mono); font-size: 10px; line-height: 1.6; color: rgba(220, 228, 234, 0.42); white-space: pre; pointer-events: none; }
@media (max-width: 560px) { .ret3d-hud { display: none; } }

/* ------------------------------------------------ soundscapes: elenco dei brani e reticolo mosso dal suono */
.sound { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr); gap: 32px clamp(32px, 4vw, 64px); align-items: start; }
.sound__method { color: var(--dim); max-width: 46ch; margin: 0 0 40px; }
.sound__net { position: sticky; top: 88px; }
.sound__net .note { margin-top: 14px; color: var(--ash); font-size: var(--t-s); max-width: 60ch; }
.ret-panel--sound { height: min(72vh, 720px); outline: 1px solid rgba(238, 238, 234, .12); }
.tgroup { margin-bottom: 44px; }
.tgroup__h { margin: 0 0 10px; font-family: var(--mono); font-size: var(--t-xs); color: var(--ash); text-transform: uppercase; letter-spacing: .08em; }
.tgroup__h a { color: var(--light); text-decoration: none; text-transform: none; letter-spacing: 0; font-family: var(--sans); font-size: var(--t-m); border-bottom: 1px solid var(--rule); margin-left: 6px; }
.tgroup__h a i { font-style: italic; color: var(--dim); }
.tgroup__l { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.trk { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; grid-template-rows: auto auto; column-gap: 14px; align-items: center;
  padding: 12px 0 10px; border-bottom: 1px solid var(--rule); }
.trk__btn { grid-row: 1 / span 2; width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(238, 238, 234, .35); background: transparent;
  color: var(--light); cursor: pointer; display: grid; place-items: center; transition: background .3s, border-color .3s; }
.trk__btn:hover, .trk.is-on .trk__btn { border-color: var(--light); }
.trk__btn:focus-visible { outline: 2px solid var(--light); outline-offset: 3px; }
.trk__btn .ico { width: 0; height: 0; border-left: 10px solid currentColor; border-top: 6px solid transparent; border-bottom: 6px solid transparent; margin-left: 3px; }
.trk.is-playing .trk__btn { background: var(--light); color: var(--void); }
.trk.is-playing .trk__btn .ico { width: 10px; height: 12px; border: 0; margin: 0; background: linear-gradient(to right, currentColor 0 35%, transparent 35% 65%, currentColor 65% 100%); }
.trk__title { font-size: var(--t-m, 1.1rem); }
.trk__time { font-family: var(--mono); font-size: var(--t-xs); color: var(--ash); font-variant-numeric: tabular-nums; }
.trk__seek { grid-column: 2 / span 2; width: 100%; margin: 8px 0 0; height: 14px; background: transparent; -webkit-appearance: none; appearance: none; cursor: pointer; }
.trk__seek::-webkit-slider-runnable-track { height: 1px; background: rgba(238, 238, 234, .25); }
.trk__seek::-moz-range-track { height: 1px; background: rgba(238, 238, 234, .25); }
.trk__seek::-webkit-slider-thumb { -webkit-appearance: none; width: 9px; height: 9px; border-radius: 50%; background: var(--light); margin-top: -4px; opacity: .0; transition: opacity .3s; }
.trk__seek::-moz-range-thumb { width: 9px; height: 9px; border: 0; border-radius: 50%; background: var(--light); opacity: 0; }
.trk.is-on .trk__seek::-webkit-slider-thumb, .trk__seek:focus-visible::-webkit-slider-thumb, .trk:hover .trk__seek::-webkit-slider-thumb { opacity: 1; }
.trk.is-on .trk__seek::-moz-range-thumb, .trk:hover .trk__seek::-moz-range-thumb { opacity: 1; }
.trk__seek:focus-visible { outline: 1px solid var(--light); outline-offset: 2px; }
@media (max-width: 860px) {
  .sound { grid-template-columns: minmax(0, 1fr); }
  .sound__net { position: relative; top: 0; order: -1; }
  .ret-panel--sound { height: 46vh; }
}

/* touch: aree di tocco più ampie senza cambiare l'aspetto (uno strato invisibile attorno al link) */
@media (pointer: coarse) {
  .nav__links a, .nav__name, .plain a, .footer ul a, .footer__small a, .cv a, .biblio a,
  .ext, .index__ext, .note a, .tgroup__h a { position: relative; }
  .nav__links a::after, .nav__name::after, .plain a::after, .cv a::after, .biblio a::after,
  .ext::after, .index__ext::after, .note a::after, .tgroup__h a::after, .footer__small a::after { content: ""; position: absolute; inset: -9px -4px; }
  .footer ul a::after { content: ""; position: absolute; inset: -4px -4px; }
  .btn { padding: 9px 14px; }
  .trk__seek { height: 30px; margin: 0 0 -8px; }
  .trk__seek::-webkit-slider-thumb { width: 16px; height: 16px; margin-top: -7.5px; }
  .trk__seek::-moz-range-thumb { width: 16px; height: 16px; }
}