/* Importazione dei font */
@import url('https://fonts.cdnfonts.com/css/open-dyslexic');
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');
@font-face {
  font-family: 'Dyslexia-Hebrew';
  src: url('./fonts/DyslexiaHebrew-Regular.woff2') format('woff2'),  /* moderno, leggero */
       url('./fonts/DyslexiaHebrew-Regular.woff') format('woff'),    /* fallback standard */
       url('./fonts/DyslexiaHebrew-Regular.ttf') format('truetype'), /* compatibilità */
       url('./fonts/DyslexiaHebrew-Regular.otf') format('opentype'), /* fallback paranoico */
       url('./fonts/DyslexiaHebrew-Regular.svg#DyslexiaHebrew') format('svg'); /* vecchi iOS */
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}
/* Variabili CSS per la gestione dei font e dimensioni */
:root {
  --font-family: 'Open-Dyslexic', 'Montserrat', Verdana, Arial, sans-serif;
  --font-size: 16px;
/* Variabili per le dimensioni dei titoli */
  --h1-size: 2.5rem;
  --h2-size: 2rem;
  --h3-size: 1.5rem;
  --h4-size: 1.25rem;
  --hero-h1-size: 2.8rem;
  --hero-h3-size: 1.5rem;
  --concept-primary-size: 1.5rem;
  --concept-secondary-size: 1.2rem;
  --concept-tertiary-size: 1rem;
  --line-height: 1.5;
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --background-color: #f8f9fa;
  --card-background: #ffffff;
  --border-color: #dee2e6;
  --text-color: #343a40;
  --hover-color: #ecf0f1;
  --verde: #27ae60;    /* verde brillante */
  --arancio: #f39c12;  /* arancio caldo */
  --blu: #3498db;      /* blu vivo */
  --viola: #9b59b6;    /* viola intenso */
  --rosa: #e91e63;     /* rosa acceso/fucsia */
  --rosso: #e74c3c;    /* rosso brillante */
  --turchese: #1abc9c; /* turchese chiaro e luminoso */
  --giallo: #f1c40f;   /* giallo acceso */
  --marrone: #8B4513;  /* marrone intenso */
}

/* Reset di base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Stili generali del body */
body {
  font-family: var(--font-family);
  font-size: var(--font-size);
  line-height: var(--line-height);
  color: var(--text-color);
  background-color: var(--background-color);
  transition: font-size 0.3s ease;
}

/* Header e navigazione */
header {
  background: linear-gradient(135deg, var(--primary-color), #34495e);
  color: white;
  padding: 1.5rem 0;
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

/* Logo container con design migliorato */
.logo-container {
  background: white;
  padding: 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.logo-container:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
}

.logo {
  height: 50px;
  width: auto;
  display: block;
  filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.1));
}

/* Controlli di accessibilità - SEMPRE A DESTRA */
.accessibility-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-left: auto; /* Forza sempre a destra */
}

.size-controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  background: rgba(255,255,255,0.1);
  padding: 0.75rem;
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.size-controls label {
  font-size: 0.9rem;
  font-weight: 500;
  margin-right: 0.5rem;
}

button {
  background: linear-gradient(45deg, var(--secondary-color), #5dade2);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

button:hover {
  background: linear-gradient(45deg, #2980b9, var(--secondary-color));
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

button:active {
  transform: translateY(0);
}

/* Icone Material */
.material-symbols-outlined {
  font-variation-settings:
    'FILL' 0,
    'wght' 400,
    'GRAD' 0,
    'opsz' 24;
}

/* Container principale */
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

/* Hero section migliorata */
.hero {
  text-align: center;
  margin-bottom: 3rem;
  padding: 3rem 2rem;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.hero h1 {
  color: black;
  font-size: var(--hero-h1-size);
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero h3 {
  color: black;
  font-size: var(--hero-h3-size);
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-icon {
  font-size: 3rem !important;
  color: #003366;
  filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.3));
}

.hero .important {
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
}

/* Titoli con icone */
h1, h2, h3, h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

h1 {
  color: var(--primary-color);
  font-size: var(--h1-size);
  font-weight: 700;
  margin-bottom: 1rem;
  justify-content: center;
}

h2 {
  color: var(--primary-color);
  font-size: var(--h2-size);
  font-weight: 700;
  margin: 2rem 0 1rem 0;
  border-bottom: 3px solid var(--secondary-color);
  padding-bottom: 0.5rem;
}

h3 {
  color: var(--primary-color);
  font-size: var(--h3-size);
  font-weight: 600;
  margin: 1.5rem 0 0.75rem 0;
}

h4 {
  color: var(--primary-color);
  font-size: var(--h4-size);
  font-weight: 600;
  margin: 1rem 0 0.5rem 0;
}

/* Griglia degli argomenti migliorata */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.topic-card {
  background: var(--card-background);
  border: 3px solid transparent;
  display: flex;
  flex-direction: column;
  justify-content: flex-start; /* i contenuti partono dall’alto */
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  background: linear-gradient(white, white) padding-box,
              linear-gradient(45deg, var(--secondary-color), var(--accent-color)) border-box;
}

.topic-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
}

.topic-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 30px rgba(0,0,0,0.2);
  border-color: var(--secondary-color);
}

.topic-card h3 {
  color: var(--secondary-color);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  justify-content: flex-start;
}

.topic-icon {
  font-size: 1.8rem !important;
  color: var(--accent-color);
  margin-right: 0.5rem;
}

.topic-card p {
  margin-bottom: 1.5rem;
  flex-grow: 0; /* il testo resta sopra */
  color: var(--text-color);
  line-height: 1.6;
}

.topic-link {
  margin-top: auto;   /* spinge il link sempre in fondo */
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(45deg, var(--secondary-color), #5dade2);
  color: white;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 3px 10px rgba(52, 152, 219, 0.3);
}

.topic-link:hover {
  background: linear-gradient(45deg, #2980b9, var(--secondary-color));
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

/* Mappa concettuale migliorata */
.concept-map {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  border: 3px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

/* ============================= */
/* Concept Tree con linee         */
/* ============================= */

.concept-tree {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 2rem auto;
    text-align: center;
    position: relative;
}

/* Stile base dei nodi */
.concept-node {
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    background: #f0f8ff;
    color: #003366;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    transition: transform 0.2s ease, background 0.3s ease;
    margin: 0.5rem;
    position: relative;
    z-index: 1;
}

.concept-node:hover {
    transform: scale(1.05);
    background: #e0f0ff;
}

/* Primary centrato in alto */
.concept-node.primary {
  font-size: var(--concept-primary-size);
  background: #003366;
  color: #ffffff;
  margin-bottom: 2rem;
}

/* Contenitore dei figli del primary */
.concept-children {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 1.5rem;
    position: relative;
}

/* Linea verticale dal nodo al contenitore figli */
.concept-node.primary::after,
.concept-node.secondary::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    width: 2px;
    height: 1.5rem;
    background: #666;
    transform: translateX(-50%);
}

/* Secondary affiancati */
.concept-node.secondary {
  font-size: var(--concept-secondary-size);
  background: #006699;
  color: #ffffff;
  margin-bottom: 1rem;
}

/* Ogni branch mostra tertiary sotto il relativo secondary */
.concept-branch {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

/* Contenitore dei tertiary */
.concept-branch .concept-children {
    display: flex;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
    position: relative;
}

/* Tertiary */
.concept-node.tertiary {
  font-size: var(--concept-tertiary-size);
  background: #b3d9ff;
  color: #003366;
}

/* Linee orizzontali che collegano i figli */
.concept-branch .concept-children::before {
    content: "";
    position: absolute;
    top: -1rem;
    left: 0;
    right: 0;
    height: 2px;
    background: #666;
    z-index: 0;
}

/* Linea verticale che collega ogni tertiary al ramo orizzontale */
.concept-node.tertiary::before {
    content: "";
    position: absolute;
    top: -1rem;
    left: 50%;
    width: 2px;
    height: 1rem;
    background: #666;
    transform: translateX(-50%);
}
/* Tutti i concept-node successivi al tertiary */
.concept-node:not(.primary):not(.secondary):not(.tertiary) {
    color: #ffffff;
    background: #004080; /* opzionale */
}

/* Rimuove tutte le linee dai nodi con classe no-linea */
.concept-node.no-linea::after {
    display: none !important;
}
/* === SEZIONI ESPANDIBILI CON DETAILS/SUMMARY === */

/* Sezioni espandibili principali */
.expandable-section {
  background: var(--card-background);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  margin: 1.5rem 0;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}

.expandable-section:hover {
  box-shadow: 0 6px 16px rgba(0,0,0,0.12);
}

/* Rimuove il triangolo di default del browser */
.expandable-section summary {
  list-style: none;
}

.expandable-section summary::-webkit-details-marker {
  display: none;
}

.expandable-section summary::marker {
  display: none;
}

/* Stili per il summary (ex expandable-header) */
.expandable-header {
  background: linear-gradient(45deg, var(--hover-color), #f8f9fa);
  padding: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

.expandable-header:hover {
  background: linear-gradient(45deg, #d5dbdb, var(--hover-color));
}

/* Icona di espansione personalizzata */
.expandable-header::after {
  content: '▶';
  margin-left: auto;
  transition: transform 0.3s ease;
  font-size: 1.2rem;
  color: var(--secondary-color);
}

/* Rotazione dell'icona quando aperto */
.expandable-section[open] .expandable-header::after {
  transform: rotate(90deg);
}

/* Evidenziazione quando aperto */
.expandable-section[open] {
  border-color: var(--secondary-color);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.15);
}

/* Contenuto espandibile */
.expandable-content {
  padding: 1.5rem;
  background: var(--card-background);
}

/* Animazione di apertura smooth */
.expandable-section {
  overflow: hidden;
}

.expandable-section[open] {
  animation: expand 0.3s ease-out;
}

@keyframes expand {
  from {
    max-height: 60px;
  }
  to {
    max-height: 2000px;
  }
}

/* Animazione di chiusura */
.expandable-section:not([open]) {
  animation: collapse 0.3s ease-in;
}

@keyframes collapse {
  from {
    max-height: 2000px;
  }
  to {
    max-height: 60px;
  }
}

/* Focus accessibile per summary */
.expandable-header:focus {
  outline: 3px solid red;
  outline-offset: 2px;
}

/* === FINE SEZIONI ESPANDIBILI === */

/* Div con colonne */
.colonne {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

/* Liste migliorate */
ol {
  padding-left: 2rem;
  margin: 1rem 0;
}

ol li {
  margin-bottom: 0.75rem;
  line-height: var(--line-height);
  position: relative;
}

ol li::marker {
  color: var(--secondary-color);
  font-weight: bold;
}

ul {
  margin: 1rem 0;
}

ul li {
  margin-bottom: 0.75rem;
  line-height: var(--line-height);
}

/* Lista con punti ebraici migliorata */
.hebrew-list {
  list-style: none;
  padding-left: 0;
}

.hebrew-list li {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.hebrew-list li::before {
  content: '✦';
  color: var(--secondary-color);
  font-weight: bold;
  position: absolute;
  left: 1rem;
  font-size: 1.2rem;
  top: 0.1rem;
}

/* Elementi speciali migliorati */
.highlight {
  background: var(--background-color);
  border: 3px solid var(--arancio);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(243, 156, 18, 0.15);
}

.highlight::before {
  content: '💡';
  position: absolute;
  top: -25px;
  left: 20px;
  background: var(--arancio);
  color: white;
  padding: 0.5rem;
  border-radius: 50%;
  font-size: 1.2rem;
}

.important {
  background: var(--background-color);
  border: 3px solid var(--blu);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(52, 152, 219, 0.15);
}

.important::before {
  content: '⚠️';
  position: absolute;
  top: -25px;
  left: 20px;
  background: var(--blu);
  color: white;
  padding: 0.5rem;
  border-radius: 50%;
  font-size: 1.2rem;
}

.success {
  background: var(--background-color);
  border: 3px solid var(--verde);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(39, 174, 96, 0.15);
}

.success::before {
  content: '✅';
  position: absolute;
  top: -25px;
  left: 20px;
  background: var(--verde);
  color: white;
  padding: 0.5rem;
  border-radius: 50%;
  font-size: 1.2rem;
}

.highlight-arancione {
  background: var(--background-color);
  border-left: 4px solid var(--arancio);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

.highlight-verde {
  background: var(--background-color);
  border-left: 4px solid var(--verde);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Viola intenso */
.highlight-viola {
  background: var(--background-color);
  border-left: 4px solid var(--viola);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Rosa acceso / fucsia */
.highlight-rosa {
  background: var(--background-color);
  border-left: 4px solid var(--rosa);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Rosso brillante */
.highlight-rosso {
  background: var(--background-color);
  border-left: 4px solid var(--rosso);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Turchese chiaro e luminoso */
.highlight-turchese {
  background: var(--background-color);
  border-left: 4px solid var(--turchese);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Giallo acceso */
.highlight-giallo {
  background: var(--background-color);
  border-left: 4px solid var(--giallo);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Marrone intenso */
.highlight-marrone {
  background: var(--background-color);
  border-left: 4px solid var(--marrone);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Blu vivo */
.highlight-blu {
  background: var(--background-color);
  border-left: 4px solid var(--blu);
  color: #000000;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  box-shadow: 0 4px 12px rgba(128, 128, 128, 0.3);
}

/* Blu invertito con bordo a sinistra */
.highlight-blu-invertito {
  background: #2c3e50;       /* blu scuro */
  color: #ffffff;            /* testo bianco */
  padding: 1.5rem;           /* stesso padding delle altre highlight */
  border-radius: 12px;
  margin: 1rem 0;
  position: relative;
  border-left: 4px solid #3498db; /* bordo blu brillante per contrasto */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25); /* ombra leggera */
}

.testobianco {
  color: white;
}


/* Testo ebraico */
.testoebraico {
  font-family: 'Dyslexia-Hebrew', 'David', 'Noto Sans Hebrew', serif;
  direction: rtl;
  text-align: right;
  font-size: 1.2em;
  font-weight: 500;
}

.testoebraicobianco {
  font-family: 'Dyslexia-Hebrew', 'David', 'Noto Sans Hebrew', serif;
  color: white;
  direction: rtl;
  text-align: right;
  font-weight: 500;
  padding: 0.5rem;
  border-radius: 6px;
  margin: 0.5rem 0;
}

.icon {
  display: inline-block;
  vertical-align: middle;
  width: 1.2em;   /* dimensione in base al font */
  height: 1.2em;
  margin-right: 0.25em;
  fill: currentColor; /* eredita il colore del testo */
}

/* Footer migliorato */
footer {
  background: linear-gradient(135deg, var(--primary-color), #34495e);
  color: white;
  text-align: center;
  padding: 3rem 2rem;
  margin-top: 4rem;
  position: relative;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-content p {
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.footer-links {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(45deg, var(--accent-color), #e74c3c);
  color: white;
  text-decoration: none;
  padding: 1rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.footer-link:hover {
  background: linear-gradient(45deg, #c0392b, var(--accent-color));
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(231, 76, 60, 0.4);
}

.footer-license {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-weight: 600;
}

/* Navigazione tra pagine migliorata */
.page-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 3rem 0;
  padding: 2rem;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border-radius: 16px;
  border: 2px solid var(--border-color);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.nav-button {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: linear-gradient(45deg, var(--secondary-color), #5dade2);
  color: white;
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(52, 152, 219, 0.25);
}

.nav-button:hover {
  background: linear-gradient(45deg, #2980b9, var(--secondary-color));
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(52, 152, 219, 0.35);
}

.nav-button.disabled {
  background: linear-gradient(45deg, #bdc3c7, #95a5a6);
  cursor: not-allowed;
  pointer-events: none;
}

/* Animazioni e transizioni */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.topic-card {
  animation: fadeInUp 0.6s ease forwards;
}

.topic-card:nth-child(1) { animation-delay: 0.1s; }
.topic-card:nth-child(2) { animation-delay: 0.2s; }
.topic-card:nth-child(3) { animation-delay: 0.3s; }
.topic-card:nth-child(4) { animation-delay: 0.4s; }
.topic-card:nth-child(5) { animation-delay: 0.5s; }
.topic-card:nth-child(6) { animation-delay: 0.6s; }

/* ===================== */
/* MOBILE COMPATTO        */
/* ===================== */
@media (max-width: 768px) {
  header {
    padding: 0.8rem 0; /* ridotto da 1.5rem */
  }

  nav {
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    justify-content: space-between; /* Manteniamo space-between anche su mobile */
    flex-wrap: nowrap;              /* mai a capo */
  }
  
  .logo-container {
    padding: 0.4rem 0.6rem;
    margin-bottom: 0;
    flex-shrink: 0;               /* evita che si restringano troppo */
  }
  
  .logo {
    height: 40px;
  }

  .accessibility-controls {
    margin-left: auto;            /* Forza sempre a destra anche su mobile */
    width: auto;
    justify-content: flex-end;    /* Allinea il contenuto interno a destra */
    flex-shrink: 0;               /* evita che si restringano troppo */
  }

  .size-controls {
    display: flex;
    gap: 0.3rem;
    padding: 0;
    background: none;
    border-radius: 0;
    align-items: center;
  }

  .size-controls label {
    display: none; /* nasconde "Dimensione carattere" */
  }
  
  .size-controls button {
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
    box-shadow: none;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .hero h1 {
    font-size: 2.2rem;
    flex-direction: column;
  }
  
  h2 {
    font-size: 1.6rem;
  }
  
  .topics-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .concept-node {
    min-width: 150px;
    font-size: 0.9rem;
  }
  
  .concept-node.primary {
    min-width: 200px;
  }
  
  .page-navigation {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-button {
    width: 100%;
    justify-content: center;
  }
  
  .expandable-header {
    padding: 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .expandable-header::after {
    position: absolute;
    top: 1rem;
    right: 1rem;
  }
/* Div con colonne */
.colonne {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(275px, 1fr));
  gap: 2rem;
  margin: 1.5rem 0;
}

}

/* ===================== */
/* ULTRA-MOBILE           */
/* ===================== */
@media (max-width: 480px) {
  header {
    padding: 0.6rem 0;
  }

  nav {
    flex-wrap: nowrap;            /* mai a capo */
    padding: 0.3rem 0.5rem;       /* header molto compatto */
    justify-content: space-between; /* Manteniamo space-between anche su ultra-mobile */
  }
  
  .logo-container {
    padding: 0.2rem 0.4rem;
  }
  
  .logo {
    height: 28px;                 /* logo piccolo ma leggibile */
  }

  .accessibility-controls {
    justify-content: flex-end;
    margin-left: auto;            /* Forza sempre a destra anche su ultra-mobile */
  }
  
  .size-controls {
    gap: 0.2rem;
  }
  
  .size-controls button {
    padding: 0.25rem 0.4rem;
    font-size: 0.7rem;
  }
  
  .size-controls label {
    display: none;
  }
  
  .hero {
    padding: 2rem 1rem;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .topic-card {
    padding: 1.5rem;
  }
}

/* Classi di utilità per le dimensioni dei font */

.font-small {
  --font-size: 14px;
  --h1-size: 2.1rem;
  --h2-size: 1.7rem;
  --h3-size: 1.3rem;
  --h4-size: 1.1rem;
  --hero-h1-size: 2.4rem;
}

.font-medium {
  --font-size: 16px;
  --h1-size: 2.5rem;
  --h2-size: 2rem;
  --h3-size: 1.5rem;
  --h4-size: 1.25rem;
  --hero-h1-size: 2.8rem;
}

.font-large {
  --font-size: 18px;
  --h1-size: 2.9rem;
  --h2-size: 2.3rem;
  --h3-size: 1.7rem;
  --h4-size: 1.4rem;
  --hero-h1-size: 3.2rem;
}

.font-xl {
  --font-size: 20px;
  --h1-size: 3.3rem;
  --h2-size: 2.6rem;
  --h3-size: 1.9rem;
  --h4-size: 1.6rem;
  --hero-h1-size: 3.6rem;
}

/* Impostazioni per mobile per i concept-node */
@media (max-width: 768px) {
  .font-small {
    --concept-primary-size: 1.1rem;
    --concept-secondary-size: 0.9rem;
    --concept-tertiary-size: 0.75rem;
  }
  
  .font-medium {
    --concept-primary-size: 1.3rem;
    --concept-secondary-size: 1rem;
    --concept-tertiary-size: 0.85rem;
  }
  
  .font-large {
    --concept-primary-size: 1.5rem;
    --concept-secondary-size: 1.2rem;
    --concept-tertiary-size: 1rem;
  }
  
  .font-xl {
    --concept-primary-size: 1.7rem;
    --concept-secondary-size: 1.4rem;
    --concept-tertiary-size: 1.15rem;
  }
}

@media (max-width: 480px) {
  .font-small {
    --concept-primary-size: 1rem;
    --concept-secondary-size: 0.8rem;
    --concept-tertiary-size: 0.7rem;
  }
  
  .font-medium {
    --concept-primary-size: 1.2rem;
    --concept-secondary-size: 0.9rem;
    --concept-tertiary-size: 0.8rem;
  }
  
  .font-large {
    --concept-primary-size: 1.4rem;
    --concept-secondary-size: 1.1rem;
    --concept-tertiary-size: 0.9rem;
  }
  
  .font-xl {
    --concept-primary-size: 1.6rem;
    --concept-secondary-size: 1.3rem;
    --concept-tertiary-size: 1rem;
  }
/* Div con colonne */
.colonne {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 1rem 0;
}

}
/* Classe per il font dyslexic (sempre attivo) */
.font-dyslexic {
  --font-family: 'Open-Dyslexic', 'Montserrat', Verdana, Arial, sans-serif;
}

/* Focus styles per accessibilità */
button:focus,
.topic-link:focus,
.nav-button:focus,
.footer-link:focus,
.concept-node:focus {
  outline: 3px solid red;
  outline-offset: 2px;
}

/* Stili per tabelle */
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
}

table th,
table td {
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  text-align: left;
}

table th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
}

table tr:nth-child(even) {
  background-color: var(--hover-color);
}

/* Stili per stampa */
@media print {

}