/* =========================================================================
   Sito personale di Luca — foglio di stile unico
   Stile: riproduzione fedele del linguaggio visivo di pi.dev
   (scuro di default, serif editoriale + monospace, angoli a 0, bordi 1px)
   Font self-ospitati (nessuna CDN, nessun tracker): SIL Open Font License 1.1
   ========================================================================= */

/* ---------- 1. Font ---------- */

@font-face {
  font-family: 'Newsreader';
  font-style: italic;
  font-weight: 300 600;
  font-display: swap;
  src: url('../fonts/newsreader-italic-300600-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Newsreader';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('../fonts/newsreader-normal-300600-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-normal-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-normal-400-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-normal-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-normal-500-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---------- 2. Temi (scuro di default, chiaro come override) ---------- */

:root {
  color-scheme: dark;

  --bg-canvas:  #161D27;   /* fondo pagina                       */
  --bg-deep:    #0F141B;   /* testata, piè di pagina, terminale   */
  --bg-raised:  #1C242F;   /* schede                              */

  --text:       #D5D8DB;   /* testo pieno            11.84:1      */
  --text-dim:   #9AA3AE;   /* testo attenuato         6.64:1      */
  --text-faint: #84909C;   /* sezione non attiva      5.21:1      */
  --accent:     #6A9FCC;   /* azzurro polveroso       6.01:1      */

  --accent-soft: rgba(106, 159, 204, .14);
  --line:        rgba(95, 107, 122, .55);
  --line-strong: rgba(120, 134, 150, .9);
  --ombra:       0 4px 40px rgba(0, 0, 0, .45);

  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono:  'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --curva: cubic-bezier(.22, 1, .36, 1);
  --misura: 44rem;   /* larghezza massima della prosa */
  --gabbia: 74rem;   /* larghezza massima del contenuto */
}

:root[data-tema="chiaro"] {
  color-scheme: light;

  --bg-canvas:  #EBE7E4;   /* moonstone                          */
  --bg-deep:    #DACBC2;   /* parchment                          */
  --bg-raised:  #F3F0EE;

  --text:       #252F3D;   /* evening blue           11.00:1     */
  --text-dim:   #5C5752;   /* driftwood               5.81:1     */
  --text-faint: #6B6560;   /* sezione non attiva      4.67:1     */
  --accent:     #3D5271;   /* tidal blue scurito      6.46:1     */

  --accent-soft: rgba(61, 82, 113, .11);
  --line:        rgba(139, 132, 125, .55);
  --line-strong: rgba(112, 104, 96, .8);
  --ombra:       0 4px 40px rgba(70, 60, 52, .14);
}

/* ---------- 3. Base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-canvas);
  color: var(--text);
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.15rem;
  line-height: 1.55;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  transition: background-color 260ms var(--curva), color 260ms var(--curva);
}

img, canvas, svg { display: block; max-width: 100%; }

a { color: inherit; }

::selection { background: var(--accent-soft); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.gabbia {
  width: 100%;
  max-width: var(--gabbia);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3.5rem);
}

/* Etichette monospace: tracking largo, il contrario dei titoli */
.etichetta {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.salta-al-contenuto {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  font-family: var(--mono);
  font-size: .8rem;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line-strong);
  padding: .6rem 1rem;
}
.salta-al-contenuto:focus { left: .5rem; top: .5rem; }

/* ---------- 4. Testata ---------- */

.testata {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--line);
}

.testata-riga {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 4rem;
}

.monogramma {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: border-color 160ms var(--curva), background-color 160ms var(--curva);
}
.monogramma:hover { border-color: var(--line-strong); background: var(--accent-soft); }
.monogramma canvas { width: 2.5rem; height: 2.5rem; }

/* L'indice della pagina sta a sinistra, accanto al monogramma: a destra
   restano solo lingua e tema, e l'intestazione respira. */
.nav {
  margin-left: 1.6rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav a {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  padding-block: .35rem;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: color 140ms ease, background-size 240ms var(--curva);
}
.nav a:hover, .nav a:focus-visible { color: var(--text); background-size: 100% 1px; }
.nav a[aria-current="true"] { color: var(--text); background-size: 100% 1px; }

/* Selettore lingua: cinque sigle in monospace, la corrente in accento. */
.lingue {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .15rem;
}
.nav + .lingue { margin-left: auto; }

.lingua {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: lowercase;
  color: var(--text-faint);
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: .35rem .12rem;
  cursor: pointer;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 calc(100% - .28rem);
  background-size: 0% 1px;
  transition: color 140ms ease, background-size 240ms var(--curva);
}
.lingua:hover, .lingua:focus-visible { color: var(--text); background-size: 100% 1px; }
.lingua[aria-pressed="true"] { color: var(--accent); background-size: 100% 1px; }

.lingue-sep {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--line-strong);
  user-select: none;
}

.tema {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: .45rem .7rem;
  cursor: pointer;
  transition: color 140ms ease, border-color 160ms var(--curva), background-color 160ms var(--curva);
}
.lingue + .tema { margin-left: .9rem; }
.tema:hover { color: var(--text); border-color: var(--line-strong); background: var(--accent-soft); }
.tema svg { width: .95rem; height: .95rem; fill: none; stroke: currentColor; stroke-width: 1.4; }
.tema .icona-sole { display: inline; }
.tema .icona-luna { display: none; }
:root[data-tema="chiaro"] .tema .icona-sole { display: none; }
:root[data-tema="chiaro"] .tema .icona-luna { display: inline; }

/* ---------- 5. Hero ---------- */

.hero {
  padding-top: clamp(3.5rem, 11vh, 7rem);
  padding-bottom: clamp(3rem, 8vh, 5rem);
  border-bottom: 1px solid var(--line);
}

.hero-eyebrow { margin: 0 0 1.4rem; }

.hero-titolo {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(3.1rem, 13vw, 6.5rem);
  line-height: .96;
  letter-spacing: -.022em;   /* tracking stretto: il contrario delle etichette */
}
.hero-titolo .riga { display: block; }
.hero-titolo .cognome { color: var(--text-faint); }

.hero-tagline {
  margin: 1.6rem 0 0;
  max-width: 31rem;
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--text-dim);
  overflow-wrap: break-word;
}

.hero-basso {
  margin-top: clamp(2.5rem, 6vh, 3.5rem);
  display: grid;
  gap: 1.25rem;
}

.scorri {
  display: inline-flex;
  align-items: baseline;
  gap: .55rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: color 140ms ease, background-size 240ms var(--curva);
}
.scorri:hover, .scorri:focus-visible { color: var(--text); background-size: 100% 1px; }
.scorri .freccia { animation: freccia-giu 2.2s ease-in-out infinite; display: inline-block; }

@keyframes freccia-giu {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(.22em); }
}

/* ---------- 6. Terminale ---------- */

.terminale {
  max-width: 40rem;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  box-shadow: var(--ombra);   /* l'unica ombra del sito */
  color: var(--text);
}

.terminale-barra {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem .8rem;
  border-bottom: 1px solid var(--line);
}
.terminale-punto {
  width: .5rem; height: .5rem;
  border: 1px solid var(--line-strong);
}
.terminale-nome {
  margin-left: .5rem;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.terminale-corpo {
  padding: 1.1rem .95rem 1.3rem;
  font-family: var(--mono);
  font-size: .82rem;
  line-height: 1.85;
  overflow-x: auto;
}

.t-riga {
  margin: 0;
  min-height: 1.85em;          /* niente salti: l'altezza è già quella finale */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.t-riga .t-prompt { color: var(--accent); margin-right: .55rem; }
.t-cmd  .t-testo  { color: var(--text); }
.t-out  .t-testo  { color: var(--text-dim); }
.t-out            { padding-left: 1.35rem; }

.t-cursore {
  display: inline-block;
  width: .55em;
  height: 1.05em;
  margin-left: .12em;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: cursore 1.05s step-end infinite;
}
@keyframes cursore { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.t-cursore[hidden] { display: none; }

/* ---------- 7. Corpo: sezioni sincronizzate allo scorrimento ---------- */

.sezione {
  padding-block: clamp(4rem, 12vh, 7.5rem);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 5rem;
}
.sezione:last-of-type { border-bottom: 0; }

.sezione-griglia {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.sezione-indice {
  align-self: start;
  display: flex;
  gap: .8rem;
  color: var(--text-faint);
  transition: color 300ms var(--curva);
}
.sezione.attiva .sezione-indice { color: var(--text-dim); }

.sezione-titolo {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2rem, 4.6vw, 2.85rem);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--text-faint);           /* stato non attivo (AA: 4.69 / 4.67) */
  transition: color 340ms var(--curva);
}
.sezione.attiva .sezione-titolo { color: var(--text); }

.prosa {
  max-width: var(--misura);
  color: var(--text-dim);              /* stato non attivo (AA: 6.64 / 5.81) */
  transition: color 340ms var(--curva);
}
.sezione.attiva .prosa { color: var(--text); }
.prosa { overflow-wrap: break-word; }
.prosa p { margin: 0 0 1.15rem; }
.prosa p:last-child { margin-bottom: 0; }

.sezione-contenuto > * + * { margin-top: 1.6rem; }

/* Collegamenti in prosa: sottolineatura animata */
.collegamento {
  color: var(--accent);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 1px;
  transition: background-size 260ms var(--curva), opacity 140ms ease;
}
.collegamento:hover, .collegamento:focus-visible { background-size: 0% 1px; }

/* ---------- 8. Schede "Cosa costruisco" ---------- */

.schede {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.scheda {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  background: var(--bg-raised);
  padding: 1.6rem 1.4rem;
  text-decoration: none;
  color: inherit;
  transition: background-color 180ms var(--curva);
}
a.scheda:hover, a.scheda:focus-visible { background: var(--bg-canvas); }

.scheda-titolo {
  margin: 0;
  overflow-wrap: break-word;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.15;
  letter-spacing: -.012em;
  color: var(--text);
}
a.scheda .scheda-titolo {
  display: inline;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 260ms var(--curva);
}
a.scheda:hover .scheda-titolo, a.scheda:focus-visible .scheda-titolo { background-size: 100% 1px; }

.scheda-testo {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--text-dim);
  overflow-wrap: break-word;
}
.scheda-piede {
  margin-top: auto;
  padding-top: .6rem;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}
.scheda-vuota { border-left: 1px dashed var(--line-strong); }
.scheda-vuota .scheda-titolo, .scheda-vuota .scheda-piede { color: var(--text-faint); }

/* ---------- 8bis. Ritratto in «Chi sono» ---------------------------------
   La foto è scontornata (PNG/WebP con trasparenza): niente cornice, e in
   basso sfuma nel fondo, così il taglio alla vita non si vede. */

.con-ritratto {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}
.ritratto { margin: 0; max-width: 13rem; }
.ritratto img {
  width: 100%;
  height: auto;
  -webkit-mask-image: linear-gradient(to bottom, #000 74%, transparent 99%);
          mask-image: linear-gradient(to bottom, #000 74%, transparent 99%);
}

@media (min-width: 760px) {
  .con-ritratto { grid-template-columns: minmax(0, 1fr) 13rem; gap: 3rem; }
  .ritratto { max-width: none; }
}

/* ---------- 8ter. Percorso: linea del tempo ------------------------------
   Righe separate da un filo, anno in monospace a sinistra e, da 760 px in
   su, la riga verticale con il quadratino su ogni tappa. */

.tappe { list-style: none; margin: 2.25rem 0 0; padding: 0; }

.tappa {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: .35rem;
  padding: 1.15rem 0 1.3rem;
  border-top: 1px solid var(--line);
}
.tappa:last-child { border-bottom: 1px solid var(--line); }

.tappa-anno {
  margin: 0;
  color: var(--text-faint);
  white-space: nowrap;
  transition: color 340ms var(--curva);
}
.sezione.attiva .tappa-anno { color: var(--text-dim); }

.tappa-titolo {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.32rem;
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--text);
  overflow-wrap: break-word;
}

.tappa-testo {
  margin: .3rem 0 0;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-dim);
  max-width: 38rem;
  overflow-wrap: break-word;
}

@media (min-width: 760px) {
  .tappa {
    grid-template-columns: 8rem minmax(0, 1fr);
    gap: 2.5rem;
  }
  .tappa-anno { padding-top: .3rem; }
  .tappa::before {
    content: '';
    position: absolute;
    left: 9.25rem;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--line);
  }
  .tappa::after {
    content: '';
    position: absolute;
    left: 8.97rem;
    top: 1.45rem;
    width: .42rem;
    height: .42rem;
    background: var(--bg-canvas);
    border: 1px solid var(--line-strong);
  }
}

/* ---------- 9. Scrivimi ---------- */

/* Icone in linea: disegnate a mano, nessuna libreria. */
.icona {
  width: 1.05em;
  height: 1.05em;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icona-piena { fill: currentColor; stroke: none; }

.contatto {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  max-width: 100%;
  font-family: var(--mono);
  font-size: clamp(1.05rem, 3.4vw, 1.45rem);
  letter-spacing: .02em;
  color: var(--accent);
  text-decoration: none;
}
.contatto span { min-width: 0; word-break: break-all; }
.contatto:hover .collegamento,
.contatto:focus-visible .collegamento { background-size: 0% 1px; }

/* Link alla presentazione: stesso bordo del bottone 404, ma è una frase
   intera, quindi niente maiuscoletto e testo libero di andare a capo dentro
   il bottone a 390 px (icona e freccia restano ai lati, non si staccano). */
.riga-presentazione { margin: 1.6rem 0 0; }
.bottone.presentazione {
  max-width: 100%;
  text-transform: none;
  letter-spacing: .02em;
  font-size: .82rem;
  line-height: 1.5;
  padding: .7rem .95rem;
  gap: .55rem;
  text-align: left;
}
.presentazione > span { min-width: 0; }
.presentazione .freccia-esterna { flex: 0 0 auto; color: var(--accent); }

.social {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}
.social li { margin: 0; }
.segnaposto {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  border: 1px dashed var(--line-strong);
  padding: .45rem .7rem;
  text-decoration: none;
}
/* Voci diventate link veri: bordo pieno, e sottolineatura larga quanto il testo. */
a.segnaposto { border-style: solid; }
a.segnaposto:hover, a.segnaposto:focus-visible { color: var(--text); }
a.segnaposto:hover .collegamento,
a.segnaposto:focus-visible .collegamento { background-size: 0% 1px; }
.segnaposto .collegamento { color: inherit; }
/* La mail sta nella stessa fila di GitHub e LinkedIn, ma per leggerla serve
   il minuscolo: è l'unica pastiglia senza maiuscoletto. */
.segnaposto.email { text-transform: none; letter-spacing: .02em; font-size: .78rem; }
.segnaposto.email span { word-break: break-all; }

/* ---------- 10. Piè di pagina ---------- */

.piede {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  padding-block: 2.25rem;
}
.piede-riga {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.5rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--text-dim);
}
.piede-riga a {
  color: var(--text-dim);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: color 140ms ease, background-size 240ms var(--curva);
}
.piede-riga a:hover, .piede-riga a:focus-visible { color: var(--text); background-size: 100% 1px; }
.piede-nota { margin-left: auto; }

/* ---------- 11. Pagina 404 ---------- */

.pagina-404 {
  min-height: calc(100vh - 4rem);
  display: flex;
  align-items: center;
  padding-block: clamp(4rem, 16vh, 9rem);
}
.codice-404 {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(4.5rem, 20vw, 10rem);
  line-height: .9;
  letter-spacing: -.03em;
}
.testo-404 { margin: 1.5rem 0 2.25rem; max-width: 32rem; color: var(--text-dim); overflow-wrap: break-word; }
.bottone {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line-strong);
  padding: .8rem 1.2rem;
  transition: background-color 180ms var(--curva), border-color 180ms var(--curva);
}
.bottone:hover, .bottone:focus-visible { background: var(--accent-soft); }
.bottone { max-width: 100%; }

/* ---------- 12. Ingresso animato scaglionato ---------- */

.entra {
  opacity: 0;
  transform: translateY(.9rem);
  animation: entra-su 760ms var(--curva) forwards;
}
.entra-1 { animation-delay:  60ms; }
.entra-2 { animation-delay: 180ms; }
.entra-3 { animation-delay: 300ms; }
.entra-4 { animation-delay: 440ms; }
.entra-5 { animation-delay: 600ms; }

@keyframes entra-su {
  from { opacity: 0; transform: translateY(.9rem); }
  to   { opacity: 1; transform: none; }
}

/* Titoli di sezione: rivelati all'ingresso nel viewport.
   Agganciati a .js: senza JavaScript restano visibili. */
.js .rivela { opacity: 0; transform: translateY(.6rem); }
.js .rivela.rivelato {
  opacity: 1;
  transform: none;
  transition: opacity 620ms var(--curva), transform 620ms var(--curva);
}

/* ---------- 13. Punti di rottura ---------- */

@media (max-width: 700px) {
  .nav { display: none; }
  .tema-testo { display: none; }
  .tema { padding: .45rem .5rem; }
  .lingue { gap: .1rem; }
  .piede-nota { margin-left: 0; }
  body { font-size: 1.05rem; }
  .hero-tagline { font-size: 1.08rem; }
  .terminale-corpo { font-size: .76rem; padding-inline: .8rem; }
}

@media (min-width: 640px) {
  .schede { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .nav { margin-left: 1.1rem; gap: 1.1rem; }
  .nav a { font-size: .74rem; letter-spacing: .08em; }
}

@media (min-width: 1024px) {
  .sezione-griglia {
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 3.5rem;
  }
  .sezione-indice {
    position: sticky;
    top: 6.5rem;
    flex-direction: column;
    gap: .5rem;
  }
  .hero-basso {
    grid-template-columns: minmax(0, 40rem);
  }
}

/* ---------- 14. Movimento ridotto: stato finale statico ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .entra, .js .rivela { opacity: 1; transform: none; animation: none; }
  .scorri .freccia { animation: none; }
  .t-cursore { animation: none; opacity: 1; }

  /* Nessuna attenuazione delle sezioni: tutto già allo stato "attivo" */
  .sezione-titolo { color: var(--text); }
  .prosa { color: var(--text); }
  .sezione-indice { color: var(--text-dim); }
}

@media print {
  .testata, .tema, .scorri { display: none; }
  body { background: #fff; color: #000; }
}