/* ============================================================
   KEIZEN — Formazione e Benessere · Design System "Terra e Oro"
   Palette derivata dal logo: oro, terracotta, carta calda, inchiostro bruno
   Tipografia: Fraunces (display) + Karla (testo)
   ============================================================ */

:root {
  --carta: #F8F2E7;
  --carta-scura: #EFE6D3;
  --carta-bordo: #E2D5BC;
  --inchiostro: #2E211B;
  --inchiostro-70: rgba(46, 33, 27, 0.72);
  --terracotta: #8A5A44;
  --terracotta-scuro: #6E4534;
  --oro: #C08A1E;
  --oro-chiaro: #E3B34C;
  --oro-pallido: rgba(192, 138, 30, 0.14);
  --bianco-caldo: #FDFBF6;
  --font-display: "Fraunces", Georgia, serif;
  --font-testo: "Karla", "Helvetica Neue", sans-serif;
  --transizione: cubic-bezier(0.22, 1, 0.36, 1);
  --max-w: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  font-family: var(--font-testo);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--inchiostro);
  background: var(--carta);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Grana di carta sottile su tutto il sito */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.18 0 0 0 0 0.13 0 0 0 0 0.10 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a { color: var(--terracotta); text-decoration-color: rgba(192, 138, 30, 0.5); text-underline-offset: 3px; }
a:hover { color: var(--oro); }

::selection { background: var(--oro-chiaro); color: var(--inchiostro); }

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  color: var(--inchiostro);
  text-wrap: balance;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-testo);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--oro);
  margin-bottom: 1.1rem;
}
.kicker::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--oro);
}

.titolo-sezione {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.2rem;
}
.titolo-sezione em {
  font-style: italic;
  color: var(--terracotta);
}

/* ---------- Layout ---------- */
.contenitore { max-width: var(--max-w); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem); }
.sezione { padding: clamp(4rem, 9vw, 7rem) 0; position: relative; }
.sezione--scura { background: var(--carta-scura); }
.sezione--inchiostro { background: var(--inchiostro); color: rgba(253, 251, 246, 0.88); }
.sezione--inchiostro h2, .sezione--inchiostro h3 { color: var(--bianco-caldo); }

/* ---------- Header ---------- */
.testata {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(248, 242, 231, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, box-shadow 0.4s;
}
.testata.compatta {
  border-bottom-color: var(--carta-bordo);
  box-shadow: 0 8px 30px rgba(46, 33, 27, 0.06);
}
.testata__interno {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0.7rem clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.marchio {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}
.marchio img { width: 54px; height: 54px; }
.marchio__testo { line-height: 1.15; }
.marchio__nome {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--inchiostro);
  letter-spacing: 0.01em;
}
.marchio__nome span { color: var(--oro); }
.marchio__motto {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--terracotta);
}

.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--inchiostro);
  text-decoration: none;
  letter-spacing: 0.02em;
  position: relative;
  padding: 0.4rem 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--oro);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--transizione);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }

/* Dropdown Corsi */
.nav__gruppo { position: relative; }
.nav__gruppo > a::before { content: "▾"; font-size: 0.7em; margin-left: 0.35em; color: var(--oro); float: right; padding-left: 4px;}
.tendina {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 300px;
  background: var(--bianco-caldo);
  border: 1px solid var(--carta-bordo);
  border-top: 3px solid var(--oro);
  box-shadow: 0 24px 50px rgba(46, 33, 27, 0.14);
  padding: 0.6rem 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s, transform 0.28s var(--transizione), visibility 0.28s;
}
.nav__gruppo:hover .tendina, .nav__gruppo:focus-within .tendina {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.tendina a {
  display: block;
  padding: 0.55rem 1.4rem;
  font-weight: 500;
}
.tendina a::after { display: none; }
.tendina a:hover { background: var(--oro-pallido); color: var(--terracotta); }
.tendina__sep {
  height: 1px;
  background: var(--carta-bordo);
  margin: 0.5rem 1.4rem;
}

.nav__cta {
  background: var(--inchiostro);
  color: var(--bianco-caldo) !important;
  padding: 0.6rem 1.35rem !important;
  border-radius: 100px;
  transition: background 0.3s;
}
.nav__cta::after { display: none !important; }
.nav__cta:hover { background: var(--terracotta); }

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 110;
}
.hamburger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--inchiostro);
  margin: 6px 0;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.aperto span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.aperto span:nth-child(2) { opacity: 0; }
.hamburger.aperto span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero home ---------- */
.eroe {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.eroe__griglia {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.eroe h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 480;
  letter-spacing: -0.02em;
  margin-bottom: 1.6rem;
}
.eroe h1 em {
  font-style: italic;
  color: var(--terracotta);
}
.eroe h1 .oro { color: var(--oro); font-style: normal; }
.eroe__testo {
  font-size: 1.15rem;
  color: var(--inchiostro-70);
  max-width: 34rem;
  margin-bottom: 2.4rem;
}
.eroe__azioni { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* Ritratto nel cerchio ensō */
.enso {
  position: relative;
  width: min(100%, 520px);
  margin-left: auto;
}
.enso::before {
  content: "";
  display: block;
  padding-top: 100%;
}
.enso__foto {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  overflow: hidden;
}
.enso__foto img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 1.2s var(--transizione);
}
.enso:hover .enso__foto img { transform: scale(1.0); }
.enso__anello {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  animation: ruota-lenta 60s linear infinite;
}
@keyframes ruota-lenta { to { transform: rotate(360deg); } }
.enso__timbro {
  position: absolute;
  bottom: 4%;
  right: 0%;
  width: 108px; height: 108px;
  background: var(--inchiostro);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 16px 36px rgba(46, 33, 27, 0.28);
}
.enso__timbro img { width: 66%; height: 66%; }

/* Marquee discipline */
.nastro {
  border-top: 1px solid var(--carta-bordo);
  border-bottom: 1px solid var(--carta-bordo);
  padding: 1.1rem 0;
  overflow: hidden;
  white-space: nowrap;
  background: var(--bianco-caldo);
}
.nastro__scorri {
  display: inline-block;
  animation: scorri 38s linear infinite;
}
.nastro span {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--terracotta);
  margin: 0 1.4rem;
}
.nastro .petalo-mini { color: var(--oro); font-style: normal; }
@keyframes scorri { to { transform: translateX(-50%); } }

/* ---------- Bottoni ---------- */
.bottone {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-testo);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
  padding: 0.95rem 2rem;
  border-radius: 100px;
  transition: transform 0.3s var(--transizione), box-shadow 0.3s, background 0.3s;
}
.bottone--pieno {
  background: var(--oro);
  color: var(--inchiostro);
  box-shadow: 0 10px 26px rgba(192, 138, 30, 0.35);
}
.bottone--pieno:hover {
  background: var(--oro-chiaro);
  color: var(--inchiostro);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(192, 138, 30, 0.45);
}
.bottone--contorno {
  border: 1.5px solid var(--inchiostro);
  color: var(--inchiostro);
}
.bottone--contorno:hover { background: var(--inchiostro); color: var(--bianco-caldo); }
.bottone--chiaro {
  border: 1.5px solid rgba(253, 251, 246, 0.5);
  color: var(--bianco-caldo);
}
.bottone--chiaro:hover { background: var(--bianco-caldo); color: var(--inchiostro); }
.bottone .freccia { transition: transform 0.3s var(--transizione); }
.bottone:hover .freccia { transform: translateX(4px); }

/* ---------- Card corsi ---------- */
.griglia-corsi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  margin-top: 2.5rem;
}
.card-corso {
  position: relative;
  background: var(--bianco-caldo);
  border: 1px solid var(--carta-bordo);
  padding: 2.2rem 1.9rem 1.9rem;
  text-decoration: none;
  color: var(--inchiostro);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  overflow: hidden;
  transition: transform 0.4s var(--transizione), box-shadow 0.4s, border-color 0.4s;
}
.card-corso::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--oro), var(--oro-chiaro));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--transizione);
}
.card-corso:hover {
  transform: translateY(-6px);
  border-color: var(--oro);
  box-shadow: 0 26px 48px rgba(46, 33, 27, 0.12);
  color: var(--inchiostro);
}
.card-corso:hover::before { transform: scaleX(1); }
.card-corso__icona {
  width: 52px; height: 52px;
  color: var(--terracotta);
  transition: transform 0.5s var(--transizione), color 0.4s;
}
.card-corso:hover .card-corso__icona { transform: rotate(45deg); color: var(--oro); }
.card-corso h3 {
  font-size: 1.35rem;
  font-weight: 560;
}
.card-corso__tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--oro);
}
.card-corso p {
  font-size: 0.95rem;
  color: var(--inchiostro-70);
  flex-grow: 1;
}
.card-corso__piede {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--terracotta);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.card-corso:hover .card-corso__piede { color: var(--oro); }

/* Card grande (percorso triennale) */
.card-corso--grande {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 0;
}
.card-corso--grande .card-corso__contenuto { padding: 2.6rem 2.4rem; display: flex; flex-direction: column; gap: 0.9rem; }
.card-corso--grande .card-corso__media { position: relative; min-height: 320px; overflow: hidden; }
.card-corso--grande .card-corso__media img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1s var(--transizione);
}
.card-corso--grande:hover .card-corso__media img { transform: scale(1.05); }
.card-corso--grande h3 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); }

/* ---------- Numeri percorso (anni) ---------- */
.tappe {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  margin-top: 2.5rem;
  counter-reset: tappa;
}
.tappa {
  position: relative;
  padding: 2rem 1.8rem;
  background: var(--bianco-caldo);
  border: 1px solid var(--carta-bordo);
  counter-increment: tappa;
}
.tappa::before {
  content: counter(tappa);
  font-family: var(--font-display);
  font-size: 4.4rem;
  font-weight: 300;
  font-style: italic;
  line-height: 1;
  color: var(--oro);
  opacity: 0.85;
  display: block;
  margin-bottom: 0.8rem;
}
.tappa h4 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.tappa p { font-size: 0.92rem; color: var(--inchiostro-70); }

/* ---------- Prosa (pagine interne) ---------- */
.prosa { max-width: 760px; }
.prosa > * + * { margin-top: 1.2em; }
.prosa h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: 2em;
  padding-top: 1.2em;
  border-top: 1px solid var(--carta-bordo);
}
.prosa h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prosa h3 { font-size: 1.25rem; margin-top: 1.8em; color: var(--terracotta-scuro); }
.prosa ul, .prosa ol { padding-left: 1.4rem; }
.prosa li { margin-top: 0.45em; }
.prosa li::marker { color: var(--oro); }
.prosa strong { color: var(--terracotta-scuro); }
.prosa blockquote {
  border-left: 3px solid var(--oro);
  padding: 0.4rem 0 0.4rem 1.4rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--terracotta-scuro);
}
.prosa table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--bianco-caldo);
  border: 1px solid var(--carta-bordo);
}
.prosa th {
  font-family: var(--font-testo);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: left;
  color: var(--bianco-caldo);
  background: var(--terracotta);
  padding: 0.75rem 1rem;
}
.prosa td { padding: 0.7rem 1rem; border-top: 1px solid var(--carta-bordo); vertical-align: top; }
.prosa tr:nth-child(even) td { background: var(--oro-pallido); }
.prosa img { border: 1px solid var(--carta-bordo); }

/* Wrapper per tabelle larghe */
.scorri-x { overflow-x: auto; }

/* ---------- Testata pagina interna ---------- */
.intesta-pagina {
  padding: 9.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
  background: var(--carta-scura);
  border-bottom: 1px solid var(--carta-bordo);
}
.intesta-pagina h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 480;
  letter-spacing: -0.015em;
  max-width: 20ch;
}
.intesta-pagina h1 em { font-style: italic; color: var(--terracotta); }
.intesta-pagina__sotto {
  margin-top: 1.2rem;
  font-size: 1.1rem;
  color: var(--inchiostro-70);
  max-width: 46rem;
}
.briciole {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 1.6rem;
  color: var(--inchiostro-70);
}
.briciole a { color: var(--terracotta); text-decoration: none; }
.briciole a:hover { color: var(--oro); }
.briciole span::before { content: "→"; margin-right: 0.5rem; color: var(--oro); }
.petalo-fondo {
  position: absolute;
  right: -120px;
  bottom: -140px;
  width: 420px;
  height: 420px;
  color: var(--oro);
  opacity: 0.09;
  pointer-events: none;
}

/* ---------- Layout pagina interna con sommario ---------- */
.pagina-griglia {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.sommario {
  position: sticky;
  top: 110px;
  border-left: 2px solid var(--carta-bordo);
  padding-left: 1.4rem;
  font-size: 0.9rem;
}
.sommario__titolo {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--oro);
  margin-bottom: 0.9rem;
}
.sommario a {
  display: block;
  padding: 0.32rem 0;
  color: var(--inchiostro-70);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.25s, padding-left 0.25s;
}
.sommario a:hover, .sommario a.attivo { color: var(--terracotta); padding-left: 0.4rem; }

/* Scheda info corso (aside) */
.scheda-info {
  background: var(--inchiostro);
  color: rgba(253, 251, 246, 0.88);
  padding: 1.8rem 1.6rem;
  margin-bottom: 2rem;
}
.scheda-info h4 {
  color: var(--oro-chiaro);
  font-size: 0.78rem;
  font-family: var(--font-testo);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.scheda-info dl { display: grid; gap: 0.7rem; font-size: 0.92rem; }
.scheda-info dt { font-weight: 700; color: var(--bianco-caldo); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.7; }
.scheda-info dd { margin: 0; }
.scheda-info .bottone { margin-top: 1.4rem; width: 100%; justify-content: center; }

/* ---------- Sezione contatto scura ---------- */
.invito {
  text-align: center;
  position: relative;
  overflow: hidden;
}
.invito h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 480;
  max-width: 22ch;
  margin: 0 auto 1.2rem;
}
.invito h2 em { font-style: italic; color: var(--oro-chiaro); }
.invito p { max-width: 40rem; margin: 0 auto 2.2rem; opacity: 0.85; }
.invito .petalo-fondo { left: -140px; right: auto; top: -140px; bottom: auto; color: var(--oro-chiaro); opacity: 0.07; }

/* ---------- Sedi ---------- */
.griglia-sedi {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-top: 2.4rem;
}
.sede {
  background: var(--bianco-caldo);
  border: 1px solid var(--carta-bordo);
  border-top: 3px solid var(--terracotta);
  padding: 1.6rem 1.4rem;
  transition: transform 0.35s var(--transizione), box-shadow 0.35s;
}
.sede:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(46, 33, 27, 0.1); }
.sede h3 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.sede p { font-size: 0.9rem; color: var(--inchiostro-70); }
.sede .etichetta {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--oro);
  margin-bottom: 0.6rem;
}

/* ---------- Footer ---------- */
.piede {
  background: var(--inchiostro);
  color: rgba(253, 251, 246, 0.75);
  padding: 4.5rem 0 2rem;
  font-size: 0.95rem;
}
.piede__griglia {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(253, 251, 246, 0.12);
}
.piede h4 {
  color: var(--oro-chiaro);
  font-family: var(--font-testo);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}
.piede a { color: rgba(253, 251, 246, 0.75); text-decoration: none; }
.piede a:hover { color: var(--oro-chiaro); }
.piede li { list-style: none; margin-bottom: 0.5rem; }
.piede__marchio {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.2rem;
}
.piede__marchio img { width: 60px; height: 60px; }
.piede__marchio .nome {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--bianco-caldo);
}
.piede__marchio .nome span { color: var(--oro-chiaro); }
.piede__legale {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.8rem;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ---------- Animazioni di ingresso ---------- */
.rivela {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--transizione), transform 0.9s var(--transizione);
}
.rivela.visibile { opacity: 1; transform: none; }
.rivela--ritardo-1 { transition-delay: 0.12s; }
.rivela--ritardo-2 { transition-delay: 0.24s; }
.rivela--ritardo-3 { transition-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  .rivela { opacity: 1; transform: none; transition: none; }
  .enso__anello, .nastro__scorri { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .griglia-corsi { grid-template-columns: repeat(2, 1fr); }
  .card-corso--grande { grid-column: span 2; }
  .griglia-sedi { grid-template-columns: repeat(2, 1fr); }
  .tappe { grid-template-columns: 1fr; }
  .pagina-griglia { grid-template-columns: 1fr; }
  .sommario { position: static; border-left: 0; padding-left: 0; border-top: 2px solid var(--carta-bordo); padding-top: 1.4rem; order: -1; }
}

@media (max-width: 860px) {
  .hamburger { display: block; }

  /* Il backdrop-filter della testata crea un containing block che intrappola
     i discendenti position:fixed → su mobile si disattiva (sfondo quasi opaco) */
  .testata { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(248, 242, 231, 0.98); }

  /* Velo scuro dietro il pannello (creato da main.js) */
  .velo {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: rgba(46, 33, 27, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s, visibility 0.4s;
  }
  .velo.attivo { opacity: 1; visibility: visible; }

  /* Drawer laterale destro */
  .nav {
    position: fixed;
    top: 0; right: 0; bottom: 0; left: auto;
    width: min(84vw, 340px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 5rem 1.6rem calc(1.6rem + env(safe-area-inset-bottom));
    background: var(--bianco-caldo);
    border-left: 1px solid var(--carta-bordo);
    box-shadow: -30px 0 60px rgba(46, 33, 27, 0.25);
    transform: translateX(105%);
    transition: transform 0.45s var(--transizione);
    z-index: 105;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav::before {
    content: "Menu";
    position: absolute;
    top: 1.6rem; left: 1.6rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--oro);
  }
  .nav.aperta { transform: translateX(0); }

  /* Voci: righe piene con separatore, ingresso a cascata */
  .nav > a, .nav__gruppo {
    opacity: 0;
    transform: translateX(18px);
    transition: opacity 0.4s var(--transizione), transform 0.4s var(--transizione);
    transition-delay: calc(0.08s + var(--i, 0) * 0.05s);
  }
  .nav.aperta > a, .nav.aperta .nav__gruppo { opacity: 1; transform: none; }

  .nav > a, .nav__gruppo > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.08rem;
    padding: 0.95rem 0.2rem;
    border-bottom: 1px solid var(--carta-bordo);
  }
  .nav > a::after { display: none; }   /* niente underline animata nel drawer */

  /* Capogruppo Corsi: chevron che ruota */
  .nav__gruppo > a::before { display: none; }
  .nav__gruppo > a::after {
    content: "▾";
    display: block;
    position: static;
    width: auto; height: auto;
    background: none;
    transform: none;
    font-size: 0.85em;
    color: var(--oro);
    transition: transform 0.3s var(--transizione);
  }
  .nav__gruppo.espanso > a::after { transform: rotate(180deg); }

  /* Tendina → accordion indentato */
  .tendina {
    position: static;
    transform: none;
    box-shadow: none;
    border: 0;
    background: transparent;
    min-width: 0;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s var(--transizione), opacity 0.35s, visibility 0.35s;
  }
  /* Il tap sul capogruppo dà :focus al link → la regola desktop
     .nav__gruppo:focus-within .tendina (stessa specificità, translateX(-50%))
     vincerebbe altrimenti e sposterebbe la tendina fuori dal drawer */
  .nav__gruppo:hover .tendina, .nav__gruppo:focus-within .tendina {
    transform: none;
  }
  .nav__gruppo.espanso .tendina {
    opacity: 1;
    visibility: visible;
    max-height: 600px;
    padding: 0.4rem 0 0.6rem;
  }
  .tendina a {
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.5rem 0.9rem;
    margin-left: 0.4rem;
    border-left: 2px solid var(--carta-bordo);
    border-bottom: 0;
    display: block;
  }
  .tendina a:hover { background: transparent; border-left-color: var(--oro); }
  .tendina__sep { margin: 0.4rem 0.9rem 0.4rem 1.3rem; }

  /* CTA Contatti in fondo, a tutta larghezza */
  .nav__cta {
    margin-top: 1.6rem;
    justify-content: center;
    text-align: center;
    display: flex !important;
    background: var(--oro) !important;
    color: var(--inchiostro) !important;
    font-size: 1.02rem;
    padding: 0.95rem 1.35rem !important;
    border-bottom: 0 !important;
    box-shadow: 0 10px 26px rgba(192, 138, 30, 0.35);
  }
  .eroe { min-height: auto; padding-top: 7.5rem; }
  .eroe__griglia { grid-template-columns: 1fr; }
  .enso { max-width: 340px; margin: 0 auto; }
  .card-corso--grande { grid-template-columns: 1fr; }
  .card-corso--grande .card-corso__media { min-height: 220px; order: -1; }
  .piede__griglia { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .griglia-corsi, .griglia-sedi { grid-template-columns: 1fr; }
  .card-corso--grande { grid-column: span 1; }
  .piede__griglia { grid-template-columns: 1fr; }
}