/* ------------------------------------------------------------------
   SOPRUSI D'UFFICIO — landing page styles
   Palette dalla copertina: marrone #3d2817 + crema #eedfc2
   Font system: DM Sans + DM Mono
------------------------------------------------------------------ */

:root {
  /* core palette — direct from cover */
  --cream:    #eedfc2;
  --cream-2:  #e6d5b2;   /* slightly deeper cream */
  --cream-3:  #d9c69d;
  --brown:    #3d2817;   /* cover dark brown */
  --brown-2:  #2c1c0f;   /* deeper, for shadows */
  --brown-3:  #5b4429;   /* warmer mid */
  --brown-4:  #8a6e4d;   /* faded brown */
  --brown-5:  #b09778;   /* muted */
  --rule:     rgba(61, 40, 23, 0.18);
  --rule-2:   rgba(61, 40, 23, 0.08);

  /* contextual */
  --paper:    var(--cream);
  --ink:      var(--brown);
  --ink-2:    var(--brown-2);
  --ink-3:    var(--brown-3);
  --ink-4:    var(--brown-4);
  --accent:   var(--brown);     /* monotone-friendly; tweakable */
  --accent-2: var(--brown-2);

  --shadow:   0 30px 60px -20px rgba(44, 28, 15, 0.45), 0 12px 24px -12px rgba(44, 28, 15, 0.3);
  --gutter:   clamp(20px, 4vw, 56px);
  --maxw:     1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

/* utility ------------------------------------------------------ */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

.mono {
  font-family: 'DM Mono', 'JetBrains Mono', ui-monospace, monospace;
}

.eyebrow {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}
.eyebrow--accent { color: var(--accent); }

.rule {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0;
}

h1, h2, h3, h4 {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

h1 { font-size: clamp(48px, 8.5vw, 116px); font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: clamp(32px, 4.6vw, 58px); font-weight: 500; }
h3 { font-size: clamp(20px, 2.4vw, 28px); font-weight: 500; }
h4 { font-size: 18px; }

em.it, .italic, em {
  font-style: italic;
  font-weight: inherit;
}

p { margin: 0 0 1em; }

/* header ------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(238, 223, 194, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 24px;
}
.brand {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand::before {
  content: "";
  width: 12px; height: 12px;
  background: var(--ink);
  display: inline-block;
}
.nav-links {
  display: flex;
  gap: 28px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.nav-links a {
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .15s, border-color .15s;
}
.nav-links a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.nav-cta {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  transition: background .15s, color .15s;
}
.nav-cta:hover { background: var(--paper); color: var(--ink); }

@media (max-width: 880px) {
  .nav-links { display: none; }
}

/* hero --------------------------------------------------------- */
.hero {
  padding: clamp(50px, 8vw, 110px) 0 clamp(70px, 9vw, 130px);
  position: relative;
}
.hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--rule);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}
.hero-eyebrow span:first-child {
  display: inline-block;
  width: 32px; height: 1px; background: var(--ink);
}

.hero h1 { margin: 0 0 18px; letter-spacing: -0.025em; }

.hero .subtitle {
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.3vw, 28px);
  color: var(--ink-3);
  margin: 0 0 32px;
  letter-spacing: -0.01em;
}

.hero .lede {
  font-size: clamp(17px, 1.5vw, 19px);
  color: var(--ink-2);
  max-width: 54ch;
  line-height: 1.6;
  margin-bottom: 36px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 36px;
  margin-bottom: 36px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-meta-item .label {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.hero-meta-item .value {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 16px;
  color: var(--ink);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 17px 28px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  transition: all .18s ease;
  cursor: pointer;
}
.btn:hover { background: var(--paper); color: var(--ink); transform: translateY(-1px); }
.btn .arrow { transition: transform .18s ease; display: inline-block; }
.btn:hover .arrow { transform: translateX(4px); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--paper); }

/* book mockup -------------------------------------------------- */
.cover-stage {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1800px;
  padding: 20px 0;
}
.cover-book {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 2 / 3;
  transform: rotateY(-13deg) rotateX(2deg) rotateZ(-1deg);
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(.2,.7,.2,1);
  filter: drop-shadow(0 60px 60px rgba(44, 28, 15, 0.4))
          drop-shadow(0 18px 24px rgba(44, 28, 15, 0.25));
}
.cover-book:hover { transform: rotateY(-5deg) rotateX(1deg) rotateZ(-0.4deg) translateY(-6px); }
.cover-book img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 2px 4px 4px 2px;
  position: relative;
  z-index: 2;
}
.cover-spine {
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 24px;
  transform: translateX(-24px) rotateY(90deg);
  transform-origin: right center;
  background: linear-gradient(180deg, #2a1a0d 0%, #1d1107 50%, #2a1a0d 100%);
  border-right: 1px solid #4a3220;
}
.cover-pages {
  position: absolute;
  right: 0; top: 6px; bottom: 6px;
  width: 10px;
  transform: translateX(10px) rotateY(-90deg);
  transform-origin: left center;
  background: repeating-linear-gradient(
    0deg,
    #f3e5cb 0px, #f3e5cb 1.5px,
    #d3bf9b 1.5px, #d3bf9b 2px
  );
}
.cover-stamp {
  position: absolute;
  top: 18px; right: -28px;
  z-index: 3;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--paper);
  padding: 8px 14px;
  background: var(--ink);
  border: 1px solid var(--paper);
  transform: rotate(8deg);
}
@media (max-width: 880px) {
  .cover-book { max-width: 300px; transform: rotateY(-8deg); }
  .cover-stamp { right: -10px; }
}

/* sections ----------------------------------------------------- */
section { padding: clamp(70px, 10vw, 130px) 0; position: relative; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: clamp(40px, 5vw, 72px);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--ink);
}
.section-head .l { max-width: 760px; }
.section-head h2 { margin-top: 12px; letter-spacing: -0.028em; }
.section-head .r {
  text-align: right;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ink-3);
  text-transform: uppercase;
  white-space: nowrap;
}
@media (max-width: 700px) {
  .section-head { flex-direction: column; gap: 12px; }
  .section-head .r { text-align: left; }
}

/* INVERTED dark section helper -------------------------------- */
.dark {
  background: var(--ink);
  color: var(--paper);
}
.dark h2, .dark h3, .dark h4 { color: var(--paper); }
.dark .section-head { border-bottom-color: var(--paper); }
.dark .section-head .r,
.dark .eyebrow { color: var(--cream-3); }
.dark p { color: rgba(238, 223, 194, 0.85); }

/* manuale: what it is ----------------------------------------- */
.manual {
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.manual h2, .manual h3 { color: var(--paper); }
.manual .section-head { border-bottom-color: rgba(238, 223, 194, 0.3); }
.manual .section-head .r, .manual .eyebrow { color: var(--cream-3); }
.manual .lead-p {
  max-width: 68ch;
  font-size: clamp(19px, 1.9vw, 23px);
  line-height: 1.55;
  color: var(--paper);
  margin: 0;
  font-weight: 400;
}
.manual .lead-p em {
  color: var(--cream-3);
  font-style: italic;
}
.manual-grid-wrap { padding-top: clamp(48px, 6vw, 72px); }

.manual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  margin-top: 0;
  border-top: 1px solid rgba(238, 223, 194, 0.25);
}
.manual-item {
  padding: 40px 32px 8px;
  border-right: 1px solid rgba(238, 223, 194, 0.18);
}
.manual-item:last-child { border-right: 0; }
.manual-item .num {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--cream-3);
  margin-bottom: 24px;
}
.manual-item h3 {
  font-style: italic;
  font-weight: 400;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.manual-item p { color: rgba(238, 223, 194, 0.82); margin: 0; font-size: 15.5px; line-height: 1.6; }
@media (max-width: 880px) {
  .manual-grid { grid-template-columns: 1fr; }
  .manual-item { border-right: 0; border-bottom: 1px solid rgba(238, 223, 194, 0.18); padding: 32px 0; }
  .manual-item:last-child { border-bottom: 0; }
}

/* indice ------------------------------------------------------- */
.indice-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--ink);
}
.indice-list li {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
  transition: padding .25s ease;
}
.indice-list li:hover { padding-left: 8px; }
.indice-list .cap {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--ink-4);
  text-transform: uppercase;
}
.indice-list .ttl {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: clamp(22px, 2.4vw, 32px);
  color: var(--ink);
  letter-spacing: -0.02em;
}
.indice-list .ttl small {
  display: block;
  font-style: italic;
  font-weight: 400;
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  color: var(--ink-3);
  margin-top: 4px;
  letter-spacing: -0.005em;
}
.indice-list .cnt {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  white-space: nowrap;
  text-transform: uppercase;
}
@media (max-width: 700px) {
  .indice-list li { grid-template-columns: 70px 1fr; }
  .indice-list .cnt { grid-column: 1 / -1; padding-left: 70px; }
}

/* anteprima — casi -------------------------------------------- */
.casi {
  background: var(--cream-2);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.caso {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  padding: 56px 0;
  border-bottom: 1px dashed var(--rule);
  align-items: start;
}
.caso:last-child { border-bottom: 0; }
.caso .num-block {
  position: sticky;
  top: 110px;
  align-self: start;
}
.caso .num-block .caso-n {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 96px;
  line-height: 0.85;
  color: var(--ink);
  letter-spacing: -0.04em;
}
.caso .num-block .chap {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-top: 18px;
}
.caso h3 {
  font-style: italic;
  font-weight: 400;
  margin-bottom: 32px;
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -0.02em;
  color: var(--ink);
}
.caso .block {
  margin-bottom: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}
.caso .block .lbl {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 10px;
}
.caso .block.cynical .lbl { color: var(--ink); }
.caso .block p {
  margin: 0;
  color: var(--ink-2);
  font-size: 17px;
  line-height: 1.65;
}
.caso .block.cynical p {
  font-style: italic;
  color: var(--ink);
  font-size: 18px;
}
@media (max-width: 880px) {
  .caso { grid-template-columns: 1fr; gap: 28px; padding: 44px 0; }
  .caso .num-block { position: static; display: flex; align-items: center; gap: 22px; }
  .caso .num-block .caso-n { font-size: 72px; }
  .caso .num-block .chap { margin-top: 0; }
}

.casi-cont {
  text-align: center;
  margin: 48px 0 0;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.casi-cont span::before, .casi-cont span::after {
  content: " — ";
  color: var(--ink-4);
}

/* quiz --------------------------------------------------------- */
.quiz-intro {
  max-width: 60ch;
  color: var(--ink-2);
  margin: 0 auto 48px;
  text-align: center;
  font-size: 18px;
  line-height: 1.6;
}
.quiz-card {
  background: var(--paper);
  border: 1.5px solid var(--ink);
  padding: clamp(28px, 4vw, 56px);
  max-width: 920px;
  margin: 0 auto;
  position: relative;
}
.quiz-card::before, .quiz-card::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border: 1.5px solid var(--ink);
}
.quiz-card::before { top: -8px; left: -8px; border-right: 0; border-bottom: 0; }
.quiz-card::after { bottom: -8px; right: -8px; border-left: 0; border-top: 0; }
.quiz-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--ink);
  margin-bottom: 28px;
}
.quiz-head .ttl {
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.01em;
}
.quiz-head .counter {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}
.quiz-list { list-style: none; padding: 0; margin: 0; }
.quiz-list li {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--rule);
  cursor: pointer;
  transition: background .15s;
}
.quiz-list li:last-child { border-bottom: 0; }
.quiz-list li:hover { background: rgba(61, 40, 23, 0.04); }
.quiz-list .box {
  width: 22px; height: 22px;
  border: 1.5px solid var(--ink);
  flex-shrink: 0;
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  line-height: 1;
  color: var(--ink);
  background: var(--paper);
  transition: background .15s;
}
.quiz-list li[aria-checked="true"] .box {
  background: var(--ink);
  color: var(--paper);
}
.quiz-list li[aria-checked="true"] .box::before {
  content: "✓";
  font-weight: 700;
}
.quiz-list .q {
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
  user-select: none;
  padding-top: 2px;
}
.quiz-result {
  margin-top: 32px;
  padding: 28px 26px;
  background: var(--ink);
  color: var(--paper);
  display: flex;
  align-items: center;
  gap: 28px;
}
.quiz-result .badge {
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: 72px;
  line-height: 1;
  color: var(--cream);
  flex-shrink: 0;
  letter-spacing: -0.04em;
}
.quiz-result .verdict-lbl {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--cream-3);
  margin-bottom: 8px;
}
.quiz-result .verdict-name {
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 28px);
  margin-bottom: 6px;
  color: var(--paper);
  letter-spacing: -0.015em;
}
.quiz-result .verdict-desc {
  color: rgba(238, 223, 194, 0.85);
  font-size: 15.5px;
  line-height: 1.55;
  margin: 0;
}
@media (max-width: 600px) {
  .quiz-result { flex-direction: column; align-items: flex-start; gap: 12px; padding: 24px 22px; }
  .quiz-result .badge { font-size: 56px; }
}

/* registro ----------------------------------------------------- */
.registro {
  background: var(--cream-2);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.registro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.registro-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'DM Mono', monospace;
  font-size: 12.5px;
  background: var(--paper);
  border: 1px solid var(--ink);
}
.registro-table caption {
  text-align: left;
  padding: 14px 16px;
  background: var(--ink);
  color: var(--paper);
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.registro-table th, .registro-table td {
  border: 1px solid var(--rule);
  padding: 10px 11px;
  text-align: left;
  color: var(--ink-2);
}
.registro-table th {
  background: var(--cream-3);
  color: var(--ink);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: 'DM Sans', sans-serif;
}
.registro-table td.f { font-style: italic; color: var(--ink-3); }
.registro-side h3 {
  font-style: italic;
  font-weight: 400;
  margin-bottom: 20px;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.02em;
}
.registro-side p { color: var(--ink-2); margin-bottom: 18px; font-size: 16.5px; line-height: 1.6; }
.registro-stat {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--rule);
}
.registro-stat .n {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-style: italic;
  font-size: 42px;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.04em;
  min-width: 110px;
}
.registro-stat .t {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}
@media (max-width: 880px) {
  .registro-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* regali ------------------------------------------------------- */
.regali-intro {
  max-width: 65ch;
  color: var(--ink-2);
  font-size: clamp(17px, 1.7vw, 19px);
  line-height: 1.6;
  margin: 0 0 clamp(40px, 5vw, 56px);
}
.regali-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1.5px solid var(--ink);
}
.regalo {
  padding: 36px 30px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: relative;
  transition: background .2s;
}
.regalo:hover { background: var(--cream-2); }
.regalo:nth-child(3n) { border-right: 0; }
.regalo:nth-last-child(-n+3) { border-bottom: 0; }
.regalo .tag {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 9.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--ink);
  padding: 5px 10px;
  margin-bottom: 22px;
}
.regalo h3 {
  font-style: italic;
  font-weight: 400;
  font-size: 24px;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.regalo p {
  color: var(--ink-2);
  font-size: 15.5px;
  line-height: 1.6;
  margin: 0;
}
@media (max-width: 880px) {
  .regali-grid { grid-template-columns: 1fr 1fr; }
  .regalo:nth-child(3n) { border-right: 1px solid var(--rule); }
  .regalo:nth-child(2n) { border-right: 0; }
  .regalo:nth-last-child(-n+3) { border-bottom: 1px solid var(--rule); }
  .regalo:nth-last-child(-n+2) { border-bottom: 0; }
}
@media (max-width: 560px) {
  .regali-grid { grid-template-columns: 1fr; }
  .regalo { border-right: 0 !important; border-bottom: 1px solid var(--rule) !important; }
  .regalo:last-child { border-bottom: 0 !important; }
}

/* autore ------------------------------------------------------- */
.autore-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: center;
}
.autore-img-wrap {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--cream-3);
  overflow: hidden;
  border: 1.5px solid var(--ink);
}
.autore-img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  filter: contrast(1.02) saturate(0.94);
}
.autore-img-wrap .cap {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  padding: 9px 14px;
}
.autore-text h3 {
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 3.2vw, 44px);
  margin-bottom: 22px;
  letter-spacing: -0.025em;
}
.autore-text p {
  font-size: 17px;
  color: var(--ink-2);
  max-width: 60ch;
  line-height: 1.65;
}
.autore-quote {
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.1vw, 24px);
  line-height: 1.45;
  color: var(--ink);
  padding-left: 28px;
  border-left: 3px solid var(--ink);
  margin: 28px 0;
  letter-spacing: -0.015em;
}
.autore-links a {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding: 4px 0;
  margin-right: 26px;
  transition: color .15s, border-color .15s;
}
.autore-links a:hover { color: var(--ink); border-bottom-color: var(--ink); }
@media (max-width: 700px) {
  .autore-grid { grid-template-columns: 1fr; gap: 28px; }
  .autore-img-wrap { max-width: 240px; }
}

/* faq ---------------------------------------------------------- */
.faq {
  background: var(--cream-2);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.faq-list {
  border-top: 1px solid var(--ink);
}
.faq-item {
  border-bottom: 1px solid var(--rule);
}
.faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 28px;
  padding: 26px 0;
  cursor: pointer;
  list-style: none;
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(19px, 2vw, 24px);
  color: var(--ink);
  letter-spacing: -0.015em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .q-num {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ink-3);
  font-style: normal;
  min-width: 48px;
  text-transform: uppercase;
}
.faq-item .q-text { flex: 1; }
.faq-item .toggle {
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  font-size: 22px;
  color: var(--ink-3);
  font-style: normal;
  transition: transform .2s;
  line-height: 1;
}
.faq-item[open] .toggle { transform: rotate(45deg); color: var(--ink); }
.faq-item .a {
  padding: 0 0 28px 76px;
  color: var(--ink-2);
  font-size: 16.5px;
  line-height: 1.65;
  max-width: 70ch;
}
@media (max-width: 600px) {
  .faq-item .a { padding-left: 0; }
}

/* CTA final ---------------------------------------------------- */
.cta-final {
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-final::before {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(238, 223, 194, 0.2);
  pointer-events: none;
}
.cta-final::after {
  content: "60";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(280px, 50vw, 580px);
  color: rgba(238, 223, 194, 0.05);
  letter-spacing: -0.06em;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}
.cta-final .wrap { position: relative; z-index: 1; }
.cta-final .eyebrow { color: var(--cream-3); }
.cta-final h2 {
  color: var(--paper);
  font-style: italic;
  font-weight: 400;
  margin: 20px auto 32px;
  max-width: 22ch;
  letter-spacing: -0.025em;
}
.cta-final p {
  color: rgba(238, 223, 194, 0.78);
  max-width: 58ch;
  margin: 0 auto 36px;
  font-size: 17px;
  line-height: 1.6;
}
.cta-final .btn {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}
.cta-final .btn:hover {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper);
}
.cta-final .delivery {
  margin-top: 36px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cream-3);
}

/* footer ------------------------------------------------------- */
footer {
  padding: 56px 0 80px;
  border-top: 1px solid var(--rule);
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
footer .ft-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
footer em { font-style: italic; font-weight: 400; }
footer a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); }
footer a:hover { border-bottom-color: var(--ink); }

/* sticky CTA --------------------------------------------------- */
.sticky-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 60;
  background: var(--ink);
  color: var(--paper);
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transform: translateY(110%);
  transition: transform .35s cubic-bezier(.2,.7,.2,1);
  border-top: 1px solid rgba(238, 223, 194, 0.18);
}
.sticky-cta.show { transform: translateY(0); }
.sticky-cta .left {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}
.sticky-cta .mini-cover {
  width: 36px; height: 54px;
  flex-shrink: 0;
  object-fit: cover;
  border: 1px solid rgba(238, 223, 194, 0.3);
}
.sticky-cta .meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.sticky-cta .t1 {
  font-family: 'DM Sans', sans-serif;
  font-style: italic;
  font-weight: 400;
  font-size: 15.5px;
  color: var(--paper);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.sticky-cta .t2 {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cream-3);
}
.sticky-cta .btn {
  padding: 12px 18px;
  font-size: 11px;
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
  white-space: nowrap;
}
.sticky-cta .btn:hover {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper);
}
@media (max-width: 560px) {
  .sticky-cta .meta .t2 { display: none; }
  .sticky-cta { padding: 10px 14px; }
}

/* tweaks panel ------------------------------------------------- */
#tweaks-fab {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 65;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  color: var(--ink);
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  padding: 10px 14px;
  cursor: pointer;
  display: none;
}
#tweaks-fab.show { display: inline-flex; }
#tweaks-panel {
  position: fixed;
  right: 20px;
  bottom: 130px;
  width: 320px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  z-index: 66;
  display: none;
  box-shadow: var(--shadow);
}
#tweaks-panel.show { display: block; }
#tweaks-panel .tp-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  background: var(--ink);
  color: var(--paper);
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}
#tweaks-panel .tp-head button {
  background: transparent;
  border: 0;
  color: var(--paper);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}
#tweaks-panel .tp-body { padding: 18px; }
#tweaks-panel .tp-group { margin-bottom: 22px; }
#tweaks-panel .tp-group:last-child { margin-bottom: 0; }
#tweaks-panel .tp-label {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 9.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 10px;
  display: block;
}
#tweaks-panel .tp-swatches { display: flex; gap: 8px; }
#tweaks-panel .tp-swatch {
  width: 32px; height: 32px;
  border: 1.5px solid var(--ink);
  cursor: pointer;
  position: relative;
}
#tweaks-panel .tp-swatch[aria-pressed="true"]::after {
  content: "✓";
  color: white;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0,0,0,.55);
}
#tweaks-panel input[type="text"], #tweaks-panel input[type="number"] {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  color: var(--ink);
}
#tweaks-panel .tp-radio {
  display: flex;
  border: 1px solid var(--ink);
}
#tweaks-panel .tp-radio button {
  flex: 1;
  padding: 9px;
  border: 0;
  background: var(--paper);
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink);
}
#tweaks-panel .tp-radio button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

/* ------------------------------------------------------------------
   Mobile-specific tuning
------------------------------------------------------------------ */
@media (max-width: 700px) {
  body { font-size: 16px; }
  :root { --gutter: 22px; }
  .hero { padding: 32px 0 60px; }
  .hero h1 { font-size: clamp(44px, 12vw, 60px); letter-spacing: -0.02em; }
  .hero .subtitle { font-size: 18px; margin-bottom: 22px; }
  .hero .lede { font-size: 16.5px; margin-bottom: 28px; }
  .hero-meta { gap: 14px 28px; padding: 16px 0; }
  .hero-meta-item .value { font-size: 15px; }
  .cta-row .btn { padding: 15px 22px; font-size: 12px; }
  .cover-stage { padding: 8px 0; }
  .cover-book { max-width: 240px; transform: rotateY(-6deg); }
  .cover-stamp { font-size: 9px; padding: 6px 11px; right: -6px; top: 12px; }
  section { padding: 64px 0; }
  .section-head { margin-bottom: 32px; padding-bottom: 18px; }
  .manual-item { padding: 28px 0 8px; }
  .indice-list li { padding: 22px 0; }
  .caso .num-block .caso-n { font-size: 60px; }
  .quiz-card { padding: 24px 20px; }
  .quiz-list .q { font-size: 15px; }
  .quiz-head .ttl { font-size: 20px; }
  .registro-side h3 { font-size: 22px; }
  .registro-table { font-size: 11.5px; }
  .registro-table th, .registro-table td { padding: 8px 9px; }
  .registro-stat .n { font-size: 36px; min-width: 90px; }
  .regalo { padding: 28px 22px; }
  .regalo h3 { font-size: 22px; }
  .autore-grid { gap: 24px; }
  .autore-text h3 { font-size: 30px; margin-bottom: 16px; }
  .autore-quote { padding-left: 20px; margin: 22px 0; font-size: 19px; }
  .faq-item summary { gap: 16px; padding: 22px 0; font-size: 18px; }
  .faq-item .q-num { min-width: 36px; font-size: 10px; }
  .faq-item .a { font-size: 15.5px; padding-bottom: 22px; }
  .cta-final { padding: 72px 0 96px; }
  .cta-final::before { inset: 14px; }
  .cta-final::after { font-size: clamp(220px, 80vw, 380px); }
  .cta-final .btn { padding: 15px 22px; font-size: 11.5px; }
  .delivery { font-size: 10px; letter-spacing: 0.22em; line-height: 1.7; }
  footer { padding: 40px 0 calc(72px + env(safe-area-inset-bottom, 0px)); }
  /* leave room for sticky CTA */
  body { padding-bottom: env(safe-area-inset-bottom, 0px); }
  .sticky-cta { padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px)); }
  .sticky-cta .btn { padding: 11px 14px; font-size: 10.5px; letter-spacing: 0.16em; }
  .sticky-cta .t1 { font-size: 14px; }
  .sticky-cta .mini-cover { width: 30px; height: 45px; }
  #tweaks-fab { bottom: calc(72px + env(safe-area-inset-bottom, 0px)); right: 12px; }
  #tweaks-panel { right: 12px; left: 12px; width: auto; bottom: calc(120px + env(safe-area-inset-bottom, 0px)); }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 40px; letter-spacing: -0.018em; }
  .cta-row { width: 100%; }
  .cta-row .btn { width: 100%; justify-content: space-between; }
}

/* reveal animations ------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  * { scroll-behavior: auto !important; }
}