:root {
  --ink: #061d2f;
  --ink-2: #0b2e47;
  --gold: #c99145;
  --gold-soft: #e0b36d;
  --paper: #f3e4c7;
  --paper-2: #fff6df;
  --red: #612114;
  --text: #17202a;
  --muted: #5f523f;
  --line: rgba(201, 145, 69, 0.45);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  font-family: Georgia, "Times New Roman", serif;
}

/* Ambiente di studio v5 ---------------------------------------------------- */
html[data-theme="dark"] { color-scheme:dark; }
html[data-font="large"] { font-size:112.5%; }
html[data-font="xlarge"] { font-size:125%; }

.study-mode {
  height:100dvh;
  overflow:hidden;
  background:var(--paper);
}
.study-mode .ottocento-bridge-hub { display:none !important; }

.study-mode .site-header {
  position:fixed;
  inset:0 0 auto;
  z-index:50;
  min-height:64px;
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  padding:max(.5rem,env(safe-area-inset-top)) max(.75rem,env(safe-area-inset-right)) .5rem max(.75rem,env(safe-area-inset-left));
  background:#061d2ff7;
}

.study-home { min-height:44px;display:inline-flex;align-items:center;gap:.4rem;padding:.45rem .65rem;border-radius:.45rem;color:var(--paper-2);text-decoration:none; }
.study-heading { min-width:0;text-align:center;color:var(--paper-2); }
.study-heading span { display:block;color:var(--gold-soft);font:700 .68rem/1.2 system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em; }
.study-heading h1 { margin:.18rem 0 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:clamp(1rem,2vw,1.25rem); }
.study-actions { display:flex;gap:.3rem;justify-content:flex-end; }
.study-actions button { min-width:44px;min-height:44px;padding:.35rem .7rem;border:1px solid transparent;border-radius:.45rem;background:transparent;color:var(--paper-2);font:inherit;cursor:pointer; }
.study-actions button:last-child { border-color:var(--gold); }
.mobile-study-tabs { display:none; }

.study-mode .lesson-shell {
  position:fixed;
  inset:64px 0 54px;
  width:100%;
  max-width:none;
  margin:0;
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(330px,1fr);
  gap:0;
  align-items:stretch;
  padding:0;
  background:var(--paper);
}

.study-mode .lesson-article {
  min-width:0;
  height:100%;
  margin:0;
  padding:0;
  overflow:auto;
  overscroll-behavior:contain;
  -webkit-overflow-scrolling:touch;
  background:var(--paper);
  scroll-behavior:smooth;
  border:0;
  border-radius:0;
  box-shadow:none;
}

.reading-source { max-width:900px;margin:0 auto;padding:clamp(1.35rem,4vw,3.3rem) clamp(1rem,5vw,4rem) 6rem;line-height:1.75; }
.reading-source > h1 { color:var(--ink);font-size:clamp(2rem,4vw,3.1rem);line-height:1.08; }
.reading-source h2,.reading-source h3 { scroll-margin-top:8rem; }
.reading-progress { position:sticky;top:0;z-index:7;height:4px;background:#c9914526; }
.reading-progress span { display:block;width:0;height:100%;background:var(--red);transition:width .15s linear; }
.reading-tools {
  position:sticky;
  top:4px;
  z-index:6;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.42rem;
  padding:.55rem clamp(.7rem,3vw,1.5rem);
  border-bottom:1px solid var(--line);
  background:#fff8e9f5;
  box-shadow:0 5px 15px #061d2f12;
  backdrop-filter:blur(10px);
}
.reading-tools p { flex:1 1 100%;margin:0;color:var(--muted);font:600 .78rem/1.25 system-ui,sans-serif; }
.reading-tools button { min-height:40px;padding:.45rem .7rem;border:1px solid var(--gold);border-radius:.4rem;background:var(--ink);color:#fff;font:700 .75rem/1.2 system-ui,sans-serif;cursor:pointer; }
.reading-tools button:nth-of-type(2),.reading-tools button:nth-of-type(4) { background:transparent;color:var(--ink); }
.reading-tools button:disabled { opacity:.44;cursor:not-allowed; }
.reading-tools [data-highlight-count] { display:inline-grid;place-items:center;min-width:1.45rem;height:1.45rem;margin-left:.25rem;border-radius:1rem;background:var(--gold-soft);color:var(--ink); }
.student-highlight { padding:.06em .02em;background:#ffe060;color:inherit;box-decoration-break:clone;-webkit-box-decoration-break:clone; }

.study-mode .lesson-sidebar {
  position:static;
  top:auto;
  min-width:0;
  min-height:0;
  height:100%;
  max-height:none;
  display:grid;
  grid-template-rows:minmax(0,54%) minmax(0,46%);
  gap:0;
  padding:0;
  padding-right:0;
  border-left:1px solid var(--line);
  background:var(--paper-2);
  overflow:hidden;
}
.visual-panel,.notebook-panel { min-height:0;padding:1rem clamp(.8rem,2vw,1.25rem);overflow:auto; }
.visual-panel { border-bottom:1px solid var(--line); }
.visual-panel header,.notebook-panel header { display:grid;grid-template-columns:1fr auto;align-items:end;gap:.15rem .7rem;margin-bottom:.65rem; }
.visual-panel header p,.notebook-panel header p { grid-column:1/-1;margin:0;color:var(--red);font:700 .68rem/1.2 system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em; }
.visual-panel h2,.notebook-panel h2 { margin:0;font-size:1.12rem;line-height:1.2;color:var(--ink); }
.notebook-panel header span { color:var(--muted);font:600 .68rem/1.2 system-ui,sans-serif; }
.context-image { position:relative;width:100%;padding:0;border:1px solid var(--gold);border-radius:.55rem;overflow:hidden;background:#061d2f;cursor:pointer; }
.context-image img { width:100%;height:min(25vh,260px);object-fit:contain;background:#071b2d; }
.context-image > span { position:absolute;right:.45rem;bottom:.45rem;padding:.25rem .5rem;border-radius:.3rem;background:#061d2fdd;color:#fff;font:700 .7rem/1 system-ui,sans-serif; }
.context-caption { margin:.45rem 0;color:var(--muted);font-size:.8rem;line-height:1.3; }
.visual-choices { display:flex;gap:.42rem;overflow-x:auto;padding:.1rem .05rem .4rem;scrollbar-width:thin; }
.visual-choices button { flex:0 0 76px;padding:0;border:2px solid transparent;border-radius:.4rem;overflow:hidden;background:var(--paper);cursor:pointer; }
.visual-choices button.active { border-color:var(--red); }
.visual-choices img { width:100%;height:48px;object-fit:cover;background:#071b2d; }
.visual-choices span { display:block;padding:.22rem;color:var(--ink);font:600 .62rem/1.15 system-ui,sans-serif; }

.notebook-panel { display:block;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scrollbar-gutter:stable; }
.notebook-panel textarea { display:block;width:100%;height:clamp(105px,16vh,150px);min-height:105px;resize:vertical;padding:.75rem;border:1px solid var(--line);border-radius:.5rem;background:var(--paper);color:var(--text);font:inherit;line-height:1.5; }
.citation-area { margin-top:.8rem; }
.citation-area h3 { margin:.2rem 0 .55rem;color:var(--ink);font-size:.95rem; }
.citation-area > div { display:block; }
.citation-card { position:relative;margin:0;padding:.62rem 2rem .62rem .75rem;border-top:1px solid var(--line);background:transparent; }
.citation-card blockquote { margin:0;color:var(--text);font-size:.9rem;line-height:1.45; }
.citation-card button { position:absolute;right:.2rem;top:.38rem;width:32px;height:32px;border:0;border-radius:50%;background:transparent;color:var(--red);font-size:1.2rem;cursor:pointer; }
[data-empty-citations] { color:var(--muted);font-size:.8rem; }
.notebook-actions { position:sticky;bottom:-1rem;z-index:2;display:flex;gap:.5rem;margin-top:.65rem;padding:.55rem 0 1rem;background:linear-gradient(0deg,var(--paper-2) 80%,transparent); }
.notebook-actions button { min-height:42px;padding:.45rem .7rem;border:1px solid var(--gold);border-radius:.4rem;background:var(--ink);color:#fff;font:inherit;cursor:pointer; }
.notebook-actions .danger { margin-left:auto;background:var(--red);border-color:var(--red); }

.study-bottombar { position:fixed;inset:auto 0 0;z-index:55;height:54px;display:grid;grid-template-columns:repeat(3,1fr);padding:0 max(env(safe-area-inset-right),0px) env(safe-area-inset-bottom) max(env(safe-area-inset-left),0px);background:var(--ink); }
.study-mode .site-footer.study-bottombar { display:grid;grid-template-columns:repeat(3,1fr);gap:0;flex-wrap:nowrap;margin:0;padding:0 max(env(safe-area-inset-right),0px) env(safe-area-inset-bottom) max(env(safe-area-inset-left),0px);border-top:0; }
.study-bottombar button { min-height:54px;border:0;border-right:1px solid #ffffff1f;background:var(--ink);color:var(--paper-2);font:700 .82rem/1.15 system-ui,sans-serif;cursor:pointer; }
.study-bottombar button:hover,.study-bottombar button:focus-visible { background:var(--red); }

.study-dialog { width:min(780px,calc(100% - 2rem));max-height:min(82vh,850px);padding:1.25rem;border:1px solid var(--gold);border-radius:.7rem;background:var(--paper);color:var(--text);overflow:auto; }
.study-dialog::backdrop { background:#061d2fd8;backdrop-filter:blur(4px); }
.study-dialog > form { position:sticky;top:0;z-index:2;float:right; }
.dialog-close { width:44px;height:44px;border:0;border-radius:50%;background:var(--red);color:#fff;font-size:1.4rem;cursor:pointer; }
.study-dialog > header p { margin:0;color:var(--red);font:700 .7rem/1.2 system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em; }
.study-dialog > header h2 { margin:.2rem 0 1rem;color:var(--ink);font-size:clamp(1.8rem,4vw,2.6rem); }
.full-index { display:grid;gap:.5rem; }
.full-index a { display:grid;grid-template-columns:44px 1fr;align-items:center;min-height:52px;border:1px solid var(--line);border-radius:.5rem;color:var(--ink);text-decoration:none;overflow:hidden; }
.full-index a b { display:grid;place-items:center;align-self:stretch;background:var(--ink);color:var(--gold-soft); }
.full-index a span { padding:.7rem; }
.full-index a[aria-current="page"] { border-color:var(--red);box-shadow:inset 0 0 0 2px var(--red); }
.essential-list { display:grid;gap:.65rem;counter-reset:essential; }
.essential-list article { display:grid;grid-template-columns:42px 1fr;align-items:start;gap:.7rem;padding:.75rem;border:1px solid var(--line);border-radius:.5rem;background:var(--paper-2); }
.essential-list article::before { counter-increment:essential;content:counter(essential);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--red);color:#fff;font-weight:700; }
.essential-list p { margin:.35rem 0;line-height:1.5; }
.vocabulary-list { display:grid;gap:.7rem;margin:0; }
.vocabulary-list div { padding:.8rem;border-left:4px solid var(--gold);background:var(--paper-2); }
.vocabulary-list dt { color:var(--red);font-weight:700; }
.vocabulary-list dd { margin:.25rem 0 0;line-height:1.5; }
.lesson-quiz fieldset { margin:1rem 0;padding:1rem;border:1px solid var(--line);border-radius:.55rem; }
.lesson-quiz fieldset.correct { border-left:5px solid #2d7a4b; }
.lesson-quiz fieldset.wrong { border-left:5px solid var(--red); }
.lesson-quiz legend { padding:0 .35rem;font-weight:700; }
.lesson-quiz label { display:block;padding:.55rem;border-radius:.35rem;cursor:pointer; }
.lesson-quiz label:has(input:checked) { background:#c9914522; }
.lesson-quiz > button,.quiz-report > button { min-height:44px;padding:.6rem 1rem;border:1px solid var(--gold);border-radius:.4rem;background:var(--red);color:#fff;font:700 .85rem/1.2 system-ui,sans-serif;cursor:pointer; }
.answer-feedback { margin:.45rem 0 0 1.5rem;font-size:.88rem;line-height:1.4; }
.quiz-report { margin-top:1rem;padding:1rem;border-radius:.55rem;background:var(--paper-2); }
.quiz-report h3 { color:var(--ink); }
.recovery-card { margin:.7rem 0;padding:.75rem;border-left:4px solid var(--red);background:#6121140c; }
.recovery-card h4,.recovery-card p { margin:.25rem 0; }
.all-correct { padding-left:.7rem;border-left:4px solid #2d7a4b; }
.resume-reading { position:fixed;right:max(1rem,env(safe-area-inset-right));bottom:max(1rem,env(safe-area-inset-bottom));z-index:20;min-height:44px;padding:.75rem 1rem;border:1px solid var(--gold);border-radius:2rem;background:#061d2fe8;color:var(--paper-2);box-shadow:var(--shadow);text-decoration:none;font-weight:700; }

html[data-theme="dark"] .study-mode,html[data-theme="dark"] .study-mode .lesson-shell,html[data-theme="dark"] .study-mode .lesson-article { background:#0c1c29;color:#f3e6ca; }
html[data-theme="dark"] .reading-source > h1,html[data-theme="dark"] .reading-source h2,html[data-theme="dark"] .reading-source h3 { color:#f5d69a; }
html[data-theme="dark"] .reading-tools { background:#102738f2; }
html[data-theme="dark"] .reading-tools p { color:#d2c3a8; }
html[data-theme="dark"] .reading-tools button:nth-of-type(2),html[data-theme="dark"] .reading-tools button:nth-of-type(4) { color:#f3e6ca; }
html[data-theme="dark"] .study-mode .lesson-sidebar,html[data-theme="dark"] .notebook-panel,html[data-theme="dark"] .visual-panel { background:#102738;color:#f3e6ca; }
html[data-theme="dark"] .visual-panel h2,html[data-theme="dark"] .notebook-panel h2,html[data-theme="dark"] .citation-area h3 { color:#f5d69a; }
html[data-theme="dark"] .notebook-panel textarea { background:#0c1c29;color:#f3e6ca; }
html[data-theme="dark"] .notebook-actions { background:linear-gradient(0deg,#102738 80%,transparent); }
html[data-theme="dark"] .study-dialog { background:#102738;color:#f3e6ca; }
html[data-theme="dark"] .study-dialog > header h2,html[data-theme="dark"] .full-index a,html[data-theme="dark"] .quiz-report h3 { color:#f5d69a; }
html[data-theme="dark"] .essential-list article,html[data-theme="dark"] .vocabulary-list div,html[data-theme="dark"] .quiz-report { background:#0c1c29; }

@media (max-width:900px) {
  .study-mode .site-header { grid-template-rows:64px 48px;gap:0 .35rem;padding:.15rem .55rem 0; }
  .study-home span,.study-actions [data-theme],.study-actions [data-font] { display:none; }
  .study-heading span { font-size:.57rem; }
  .study-heading h1 { font-size:.92rem; }
  .mobile-study-tabs { grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);align-self:stretch;border-top:1px solid #ffffff1c; }
  .mobile-study-tabs button { border:0;border-bottom:3px solid transparent;background:transparent;color:var(--paper-2);font:700 .78rem/1 system-ui,sans-serif; }
  .mobile-study-tabs button.active { border-bottom-color:var(--gold-soft);background:#ffffff0e; }
  .study-mode .lesson-shell { inset:112px 0 54px;display:block; }
  .study-mode .lesson-article,.study-mode .lesson-sidebar { height:100%; }
  .study-mode .lesson-shell[data-mobile-panel="read"] .lesson-article { display:block; }
  .study-mode .lesson-shell[data-mobile-panel="read"] .lesson-sidebar { display:none; }
  .study-mode .lesson-shell[data-mobile-panel="visual"] .lesson-article,.study-mode .lesson-shell[data-mobile-panel="notes"] .lesson-article { display:none; }
  .study-mode .lesson-shell[data-mobile-panel="visual"] .lesson-sidebar,.study-mode .lesson-shell[data-mobile-panel="notes"] .lesson-sidebar { display:block;border:0; }
  .study-mode .lesson-shell[data-mobile-panel="visual"] .notebook-panel { display:none; }
  .study-mode .lesson-shell[data-mobile-panel="notes"] .visual-panel { display:none; }
  .study-mode .lesson-shell[data-mobile-panel="visual"] .visual-panel,.study-mode .lesson-shell[data-mobile-panel="notes"] .notebook-panel { display:block;height:100%;overflow-y:auto;border:0; }
  .context-image img { height:min(50vh,480px); }
  .reading-source { padding:1.3rem 1rem 5rem; }
  .reading-tools { top:4px; }
}

@media (min-width:901px) and (max-width:1180px) and (orientation:portrait) {
  .study-mode .lesson-shell { grid-template-columns:minmax(0,1.45fr) minmax(300px,1fr); }
}

@media (prefers-reduced-motion:reduce) {
  *,*::before,*::after { scroll-behavior:auto !important;transition-duration:.01ms !important;animation-duration:.01ms !important; }
}

@media print {
  .study-mode { height:auto;overflow:visible;background:#fff; }
  .study-mode .site-header,.study-mode .lesson-sidebar,.study-bottombar,.reading-tools,.reading-progress,.study-dialog { display:none !important; }
  .study-mode .lesson-shell { position:static;display:block; }
  .study-mode .lesson-article { height:auto;overflow:visible;background:#fff; }
  .reading-source { max-width:none;padding:0;color:#111; }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(rgba(6, 29, 47, 0.94), rgba(6, 29, 47, 0.9)),
    radial-gradient(circle at 20% 10%, rgba(201, 145, 69, 0.18), transparent 28%),
    var(--ink);
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  color: var(--paper-2);
  background: rgba(6, 29, 47, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gold-soft);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--gold);
  border-radius: 50%;
  font-size: 0.85rem;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.top-nav a {
  padding: 0.65rem 0.75rem;
  border-bottom: 2px solid transparent;
  color: var(--paper-2);
  text-decoration: none;
  white-space: nowrap;
}

.top-nav a:hover,
.top-nav a[aria-current="page"] {
  color: var(--gold-soft);
  border-color: var(--gold);
}

main {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body[data-page="home"] {
  min-height: 100vh;
  background: #061d2f;
}

body[data-page="home"] main {
  width: min(100%, 1448px);
}

.index-replica {
  position: relative;
  margin: 0 auto;
  background: #061d2f;
  box-shadow: 0 0 38px rgba(0, 0, 0, 0.45);
}

.index-replica-image {
  width: 100%;
  height: auto;
  user-select: none;
}

.hotspot {
  position: absolute;
  display: block;
  border-radius: 0.45rem;
  text-decoration: none;
}

.hotspot:focus-visible {
  outline: 3px solid var(--paper-2);
  outline-offset: 3px;
  background: rgba(255, 246, 223, 0.16);
}

.hs-home { left: 32%; top: 1.2%; width: 7%; height: 4%; }
.hs-lezioni { left: 40%; top: 1.2%; width: 9%; height: 4%; }
.hs-approfondimenti { left: 51%; top: 1.2%; width: 13%; height: 4%; }
.hs-mappe-nav { left: 65%; top: 1.2%; width: 8%; height: 4%; }
.hs-biografia { left: 74%; top: 1.2%; width: 8%; height: 4%; }
.hs-start { left: 82%; top: 1%; width: 16%; height: 4.5%; }
.hs-card-1 { left: 2.6%; top: 35%; width: 14.5%; height: 21.8%; }
.hs-card-2 { left: 18%; top: 35%; width: 14.5%; height: 21.8%; }
.hs-card-3 { left: 34%; top: 35%; width: 15%; height: 21.8%; }
.hs-card-4 { left: 50.5%; top: 35%; width: 14.5%; height: 21.8%; }
.hs-card-5 { left: 66%; top: 35%; width: 14.5%; height: 21.8%; }
.hs-card-6 { left: 82%; top: 35%; width: 14.5%; height: 21.8%; }
.hs-zante { left: 11%; top: 61%; width: 11%; height: 11.5%; border-radius: 50%; }
.hs-napoleone { left: 25%; top: 61%; width: 11%; height: 11.5%; border-radius: 50%; }
.hs-ortis { left: 38.5%; top: 61%; width: 11%; height: 11.5%; border-radius: 50%; }
.hs-sepolcri { left: 51.5%; top: 61%; width: 11%; height: 11.5%; border-radius: 50%; }
.hs-grazie { left: 65%; top: 61%; width: 11%; height: 11.5%; border-radius: 50%; }
.hs-illusioni { left: 79%; top: 61%; width: 11%; height: 11.5%; border-radius: 50%; }
.hs-mappe-panel { left: 2.7%; top: 73.6%; width: 30%; height: 15.2%; }
.hs-timeline-panel { left: 33.8%; top: 73.6%; width: 30%; height: 15.2%; }
.hs-quiz-panel { left: 64.5%; top: 73.6%; width: 31.5%; height: 15.2%; }

.hero-home {
  min-height: min(760px, calc(100vh - 5rem));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: clamp(2rem, 5vw, 4.5rem) 0 2rem;
  color: var(--paper-2);
}

.hero-home::before {
  content: "";
  position: absolute;
  inset: 4.5rem 0 auto 0;
  height: min(62vh, 560px);
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(243, 228, 199, 0.94), rgba(243, 228, 199, 0.6), rgba(6, 29, 47, 0.12)),
    url("../immagini/index.png") center top / cover;
  opacity: 0.22;
}

.hero-copy {
  max-width: 670px;
  text-align: center;
}

.ornament {
  color: var(--gold-soft);
  font-size: 1.3rem;
}

.hero-copy h1 {
  margin: 0.35rem 0 1rem;
  color: var(--paper-2);
  font-size: clamp(3.4rem, 9vw, 7rem);
  line-height: 0.95;
  font-weight: 500;
}

.hero-copy p {
  width: min(620px, 100%);
  margin: 0 auto 1.5rem;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.primary-action,
.button-link,
.modal-close,
.media-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 2.75rem;
  padding: 0.7rem 1.05rem;
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  color: var(--ink);
  background: linear-gradient(180deg, var(--paper-2), #e9c98d);
  box-shadow: 0 4px 0 rgba(77, 46, 18, 0.45);
  text-decoration: none;
  font: inherit;
  cursor: pointer;
}

.hero-portrait {
  margin: 0;
  border: 1px solid var(--gold);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--paper);
}

.hero-portrait img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
}

.section-shell,
.key-themes,
.feature-panels,
.lesson-shell,
.map-page,
.video-page {
  margin: 0 0 2rem;
}

.section-heading {
  color: var(--paper-2);
  text-align: center;
}

.section-heading p {
  margin: 0;
  color: var(--gold-soft);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.section-heading h2 {
  margin: 0.3rem 0 1.2rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 500;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(130px, 1fr));
  gap: 0.85rem;
}

.home-card {
  position: relative;
  min-height: 245px;
  display: grid;
  grid-template-rows: auto auto 1fr;
  align-items: center;
  justify-items: center;
  gap: 0.65rem;
  padding: 1.1rem 0.9rem;
  color: var(--ink);
  background:
    linear-gradient(rgba(255, 246, 223, 0.9), rgba(243, 228, 199, 0.96)),
    radial-gradient(circle at 20% 20%, rgba(201, 145, 69, 0.18), transparent 35%);
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.22);
}

.home-card:hover {
  transform: translateY(-3px);
}

.card-number {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  color: var(--paper-2);
  background: var(--ink);
  border: 1px solid var(--gold);
  font-size: 1.4rem;
}

.card-icon {
  min-height: 3rem;
  color: var(--gold);
  font-size: 2.6rem;
}

.home-card strong {
  font-size: 1.45rem;
  line-height: 1.05;
}

.home-card span:last-child {
  color: #372718;
  line-height: 1.25;
}

.theme-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: rgba(8, 42, 65, 0.9);
}

.theme-strip a {
  display: grid;
  place-items: center;
  min-height: 5rem;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--paper-2);
  text-align: center;
  text-decoration: none;
  background: rgba(243, 228, 199, 0.08);
}

.feature-panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.feature-panel {
  min-height: 160px;
  padding: 1.4rem;
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  text-decoration: none;
  box-shadow: var(--shadow);
}

.feature-panel strong {
  display: block;
  margin-bottom: 0.7rem;
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.feature-panel span {
  line-height: 1.45;
}

.panel-blue {
  color: var(--paper-2);
  background: linear-gradient(135deg, #082a41, #0c3a57);
}

.panel-paper {
  color: var(--ink);
  background: linear-gradient(135deg, var(--paper-2), #e6c58d);
}

.panel-red {
  color: var(--paper-2);
  background: linear-gradient(135deg, var(--red), #7b2d1d);
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: clamp(1rem, 5vw, 4rem);
  flex-wrap: wrap;
  margin-top: 2rem;
  padding: 1.4rem;
  color: var(--paper-2);
  border-top: 1px solid var(--line);
  background: rgba(6, 29, 47, 0.98);
}

.lesson-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: clamp(1.2rem, 4vw, 2.5rem);
  align-items: start;
  padding: clamp(1.5rem, 4vw, 3rem) 0;
}

.lesson-article,
.map-index,
.video-index {
  min-width: 0;
  padding: clamp(1.15rem, 3vw, 2rem);
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  background:
    linear-gradient(rgba(255, 246, 223, 0.96), rgba(243, 228, 199, 0.98)),
    radial-gradient(circle at 10% 5%, rgba(201, 145, 69, 0.16), transparent 28%);
  box-shadow: var(--shadow);
}

.lesson-article h1 {
  margin: 0 0 0.4rem;
  color: var(--ink);
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  line-height: 1;
  font-weight: 500;
}

.lesson-kicker {
  margin: 0 0 0.55rem;
  color: #755322;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.84rem;
}

.lesson-subtitle {
  margin: 0 0 1.4rem;
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.45;
}

.lesson-article h2 {
  margin: 1.7rem 0 0.7rem;
  color: #173750;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.16;
}

.lesson-article p,
.lesson-note p,
.video-card p {
  font-size: 1.05rem;
  line-height: 1.72;
}

.lesson-note {
  margin: 1.1rem 0;
  padding: 1rem;
  border-left: 4px solid var(--gold);
  background: rgba(255, 255, 255, 0.38);
}

.lesson-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  margin: 1.2rem 0;
}

.lesson-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.3);
}

.lesson-table th,
.lesson-table td {
  min-width: 9rem;
  padding: 0.75rem;
  border: 1px solid rgba(95, 82, 63, 0.28);
  text-align: left;
  vertical-align: top;
  line-height: 1.45;
}

.lesson-table th {
  color: var(--ink);
  background: rgba(201, 145, 69, 0.18);
}

.lesson-sidebar {
  position: sticky;
  top: 5rem;
  min-width: 0;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 0.35rem;
  display: grid;
  gap: 1rem;
  scrollbar-color: var(--gold) rgba(255, 246, 223, 0.18);
  scrollbar-width: thin;
}

.author-media,
.lesson-map-card,
.video-card {
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  background: var(--paper);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.author-media {
  position: relative;
}

.image-panel {
  position: relative;
}

.image-panel img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  cursor: pointer;
}

.is-video-missing .image-panel img {
  cursor: default;
}

.play-video {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  white-space: nowrap;
}

.video-panel {
  padding: 0.8rem;
}

.video-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  background: #000;
}

.media-caption,
.lesson-map-card figcaption {
  padding: 0.75rem;
  color: var(--ink);
  line-height: 1.35;
}

.is-video-missing .media-caption::after {
  content: " Video non disponibile per questa sezione.";
  color: var(--muted);
}

.lesson-map-card {
  margin: 0;
}

.lesson-map-card img {
  width: 100%;
  height: auto;
  cursor: zoom-in;
}

.map-button {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
}

.map-grid,
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.map-index h1,
.video-index h1 {
  margin-top: 0;
  color: var(--ink);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 500;
}

.map-tile {
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  overflow: hidden;
  background: var(--paper-2);
}

.map-tile button {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.map-tile img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #fff8e8;
}

.map-tile strong,
.video-card strong {
  display: block;
  padding: 0.8rem;
  color: var(--ink);
  font-size: 1.1rem;
}

.video-card {
  padding-bottom: 1rem;
}

.video-card p {
  margin: 0;
  padding: 0 0.8rem 0.8rem;
}

.map-modal {
  width: min(96vw, 1280px);
  height: min(92vh, 900px);
  padding: 0;
  border: 1px solid var(--gold);
  border-radius: 0.45rem;
  background: var(--ink);
}

.map-modal::backdrop {
  background: rgba(0, 0, 0, 0.72);
}

.modal-inner {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
}

.modal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  color: var(--paper-2);
  border-bottom: 1px solid var(--line);
}

.modal-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--paper-2);
}

.modal-close {
  min-height: 2.35rem;
  padding: 0.45rem 0.75rem;
}

.study-panel {
  margin-top: 1.5rem;
  padding: 1rem;
  border: 1px solid rgba(201, 145, 69, 0.5);
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.34);
}

.study-heading p {
  margin: 0 0 0.25rem;
  color: #755322;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.study-heading h2 {
  margin-top: 0;
}

.vocab-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.vocab-card,
.quiz-question,
.report-row,
.notes-tool {
  border: 1px solid rgba(95, 82, 63, 0.22);
  border-radius: 0.45rem;
  background: rgba(255, 246, 223, 0.72);
}

.vocab-card {
  padding: 0.85rem;
}

.vocab-card strong {
  display: block;
  color: var(--ink);
  font-size: 1.08rem;
}

.vocab-card p {
  margin: 0.35rem 0 0;
}

.lesson-quiz {
  display: grid;
  gap: 0.9rem;
}

.quiz-question {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0.9rem;
}

.quiz-question legend {
  padding: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.35;
}

.quiz-question label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  align-items: start;
  line-height: 1.45;
}

.quiz-report {
  margin-top: 1rem;
}

.quiz-report h3 {
  margin: 0 0 0.4rem;
  color: var(--ink);
  font-size: 1.45rem;
}

.score-line {
  margin: 0 0 0.9rem;
  font-weight: 700;
}

.report-row {
  margin-top: 0.75rem;
  padding: 0.9rem;
}

.report-row.is-correct {
  border-color: rgba(42, 112, 70, 0.45);
  background: rgba(231, 246, 231, 0.72);
}

.report-row.is-wrong {
  border-color: rgba(133, 48, 28, 0.45);
  background: rgba(255, 236, 219, 0.78);
}

.notes-tool {
  padding: 0.9rem;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.notes-tool h2 {
  margin: 0 0 0.35rem;
  font-size: 1.45rem;
  font-weight: 500;
}

.notes-tool p {
  margin: 0 0 0.75rem;
  line-height: 1.35;
}

.notes-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.student-highlight {
  padding: 0.05em 0.12em;
  border-radius: 0.18rem;
  background: #ffe277;
  color: inherit;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.notes-tool textarea {
  width: 100%;
  min-height: 220px;
  max-height: 45vh;
  resize: vertical;
  overflow: auto;
  padding: 0.75rem;
  border: 1px solid rgba(95, 82, 63, 0.35);
  border-radius: 0.4rem;
  color: var(--text);
  background: #fffaf0;
  font: 1rem/1.5 Georgia, "Times New Roman", serif;
}

.notes-clear {
  margin-top: 0.6rem;
  padding: 0;
  border: 0;
  color: #6b2c1f;
  background: transparent;
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.notes-status {
  min-height: 1.2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    width: 100%;
  }

  .hero-home,
  .lesson-shell {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    order: 2;
  }

  .hero-portrait {
    width: min(420px, 100%);
    margin: 0 auto;
  }

  .lesson-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .theme-strip,
  .feature-panels,
  .map-grid,
  .video-grid,
  .vocab-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lesson-sidebar {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }
}

@media (max-width: 620px) {
  main {
    width: min(100% - 1rem, 1180px);
  }

  .brand {
    font-size: 0.95rem;
  }

  .hero-home {
    min-height: auto;
    padding-top: 1.2rem;
  }

  .hero-copy {
    text-align: left;
  }

  .hero-copy h1 {
    font-size: 3.2rem;
  }

  .hero-copy p {
    margin-left: 0;
  }

  .lesson-grid,
  .theme-strip,
  .feature-panels,
  .map-grid,
  .video-grid,
  .vocab-grid,
  .notes-actions {
    grid-template-columns: 1fr;
  }

  .home-card {
    min-height: 190px;
  }

  .site-footer {
    justify-content: flex-start;
  }
}


/* Manzoni homepage hotspot calibration for assets/immagini/index.png (1448 x 1086). */
.hs-home { left: 33.3%; top: 1.1%; width: 6.1%; height: 4.6%; }
.hs-lezioni { left: 41.2%; top: 1.1%; width: 7.2%; height: 4.6%; }
.hs-approfondimenti { left: 49.4%; top: 1.1%; width: 11.5%; height: 4.6%; }
.hs-mappe-nav { left: 62%; top: 1.1%; width: 6.3%; height: 4.6%; }
.hs-biografia { left: 69%; top: 1.1%; width: 8%; height: 4.6%; }
.hs-start { left: 82.4%; top: 1%; width: 15.6%; height: 4.6%; }
.hs-card-1 { left: 4.1%; top: 33%; width: 13.5%; height: 24.8%; }
.hs-card-2 { left: 19%; top: 33%; width: 13.5%; height: 24.8%; }
.hs-card-3 { left: 33.8%; top: 33%; width: 13.7%; height: 24.8%; }
.hs-card-4 { left: 48.8%; top: 33%; width: 13.8%; height: 24.8%; }
.hs-card-5 { left: 63.7%; top: 33%; width: 14%; height: 24.8%; }
.hs-card-6 { left: 78.8%; top: 33%; width: 14%; height: 24.8%; }
.hs-lucia { left: 13%; top: 60%; width: 8.2%; height: 12.4%; border-radius: 50%; }
.hs-renzo { left: 25.6%; top: 60%; width: 8.2%; height: 12.4%; border-radius: 50%; }
.hs-cristoforo { left: 39%; top: 60%; width: 8.2%; height: 12.4%; border-radius: 50%; }
.hs-innominato { left: 52.4%; top: 60%; width: 8.2%; height: 12.4%; border-radius: 50%; }
.hs-gertrude { left: 65.6%; top: 60%; width: 8.2%; height: 12.4%; border-radius: 50%; }
.hs-provvidenza { left: 78.8%; top: 60%; width: 8.2%; height: 12.4%; border-radius: 50%; }
.hs-mappe-panel { left: 4.1%; top: 74%; width: 28.5%; height: 15.4%; }
.hs-timeline-panel { left: 33.8%; top: 74%; width: 29.9%; height: 15.4%; }
.hs-quiz-panel { left: 64.6%; top: 74%; width: 28.1%; height: 15.4%; }

.lesson-article h3 {
  margin: 1.35rem 0 0.55rem;
  color: #294b63;
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  line-height: 1.18;
}

.lesson-list {
  margin: 0.75rem 0 1rem;
  padding-left: 1.35rem;
  line-height: 1.65;
}

.lesson-list li + li {
  margin-top: 0.25rem;
}

.video-empty {
  min-height: 12rem;
  padding: 1rem;
}

.video-empty strong {
  padding: 0;
}


/* Revisione dello strumento di studio */
.lesson-brief {
  margin: 2.2rem 0 0;
  padding: 1.15rem 1.3rem;
  border-left: 4px solid var(--gold);
  border-radius: .65rem;
  background: rgba(201,145,69,.12);
}
.lesson-brief small {
  display:block;
  color:#7b4d16;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.lesson-brief h2 { margin:.18rem 0 .55rem; }
.lesson-brief p { margin:0; }
.citation-source {
  display:block;
  margin-top:.45rem;
  color:#745126;
  font-size:.78rem;
  font-weight:800;
}
.recovery-example {
  margin:.65rem 0;
  padding:.65rem .8rem;
  border-left:3px solid var(--gold);
  background:rgba(201,145,69,.1);
  font-size:.92rem;
}
.recovery-card [data-recovery-jump] {
  margin-top:.55rem;
  padding:.55rem .75rem;
  border:1px solid var(--gold);
  border-radius:.45rem;
  background:#fff7e8;
  color:var(--ink);
  font-weight:800;
  cursor:pointer;
}
.recovery-focus {
  outline:4px solid rgba(201,145,69,.62);
  outline-offset:7px;
  border-radius:.35rem;
}
html[data-theme="dark"] .lesson-brief,
html[data-theme="dark"] .recovery-example { background:rgba(201,145,69,.16); }
html[data-theme="dark"] .lesson-brief small,
html[data-theme="dark"] .citation-source { color:#f0c783; }
html[data-theme="dark"] .recovery-card [data-recovery-jump] {
  background:#18384e;
  color:#fff4dc;
}