/* ===== Self-hosted webfonts (SIL Open Font License) =====
   Nessuna richiesta a server di terze parti: i font sono serviti dal dominio. */
@font-face{font-family:"Geist";src:url("fonts/Geist-Variable.woff") format("woff"),url("fonts/Geist-Variable.ttf") format("truetype");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Geist";src:url("fonts/Geist-Italic-Variable.woff") format("woff"),url("fonts/Geist-Italic-Variable.ttf") format("truetype");font-weight:100 900;font-style:italic;font-display:swap}
@font-face{font-family:"Geist Mono";src:url("fonts/GeistMono-Variable.woff") format("woff"),url("fonts/GeistMono-Variable.ttf") format("truetype");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Newsreader";src:url("fonts/Newsreader-Variable.woff") format("woff"),url("fonts/Newsreader-Variable.ttf") format("truetype");font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"Newsreader";src:url("fonts/Newsreader-Italic-Variable.woff") format("woff"),url("fonts/Newsreader-Italic-Variable.ttf") format("truetype");font-weight:200 800;font-style:italic;font-display:swap}

/* QR-BOOK.com — minimal flat white */

:root {
  --accent: #111111;
  --accent-ink: #ffffff;
  --ink: #0a0a0a;
  --ink-2: #2a2a2a;
  --ink-3: #5a5a5a;
  --ink-4: #8a8a8a;
  --hair: #e6e6e6;
  --hair-2: #f0f0f0;
  --bg: #ffffff;
  --bg-2: #fafafa;

  /* fonts */
  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Newsreader", "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* density */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;
  --section-y: clamp(64px, 10vw, 128px);
  --container: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
}

[data-density="compact"] {
  --section-y: clamp(40px, 6vw, 80px);
  --space-9: 64px;
  --space-10: 88px;
}
[data-density="airy"] {
  --section-y: clamp(96px, 14vw, 200px);
  --space-9: 128px;
  --space-10: 180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 16px;
  line-height: 1.55;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: var(--accent-ink); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ========== TYPE ========== */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}

h1, h2, h3, h4 { margin: 0; letter-spacing: -0.02em; line-height: 1.05; font-weight: 500; }

.display {
  font-size: clamp(48px, 8vw, 112px);
  letter-spacing: -0.035em;
  line-height: 0.96;
  font-weight: 500;
}
.display em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.h1 { font-size: clamp(40px, 6vw, 72px); letter-spacing: -0.03em; line-height: 1; }
.h2 { font-size: clamp(28px, 3.5vw, 44px); letter-spacing: -0.02em; line-height: 1.1; }
.h3 { font-size: clamp(20px, 2vw, 26px); letter-spacing: -0.01em; line-height: 1.2; font-weight: 500;}

.lede {
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 60ch;
  font-weight: 400;
}
.lede em { font-family: var(--font-serif); font-style: italic; font-size: 1.05em; }

p { margin: 0 0 1em; color: var(--ink-2); max-width: 70ch; }
p strong { color: var(--ink); font-weight: 600; }

[data-font="serif"] {
  --font-sans: "Newsreader", Georgia, serif;
}
[data-font="serif"] body { font-feature-settings: normal; }
[data-font="serif"] h1, [data-font="serif"] h2, [data-font="serif"] h3 { letter-spacing: -0.02em; }
[data-font="serif"] .display em { font-family: inherit; }

/* ========== HEADER ========== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--hair);
}
.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 16px;
}
.brand__mark {
  width: 32px; height: 34px;
  display: grid; place-items: center;
  background: transparent; color: var(--ink);
  border-radius: 0;
}
.brand__mark svg { width: 18px; height: 18px; }
.brand__mark img { width: 100%; height: 100%; object-fit: contain; display: block; }
.site-footer .brand__mark { width: 36px; height: 38px; }
.brand--footer { display: inline-block; padding: 0; }
.brand--footer__logo {
  display: block;
  width: 140px;
  height: auto;
  max-width: 100%;
}
.brand__name { white-space: nowrap; }
.brand__name sup { font-size: 0.55em; font-weight: 500; vertical-align: super; margin-left: 1px;}
.brand__sub { color: var(--ink-3); font-weight: 400; margin-left: 6px; }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--ink-2);
  position: relative;
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--ink); background: var(--hair-2); }
.nav a.is-active { color: var(--ink); }
.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 2px;
  height: 1px; background: var(--accent);
}

.header-tools { display: flex; align-items: center; gap: 12px; }

/* ========== LANGUAGE TOGGLE ========== */

.lang-toggle {
  display: inline-flex;
  position: relative;
  background: var(--hair-2);
  border-radius: 999px;
  padding: 3px;
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.lang-toggle__pill {
  position: absolute;
  top: 3px; bottom: 3px;
  width: calc(50% - 3px);
  background: var(--ink);
  border-radius: 999px;
  transition: transform .35s cubic-bezier(.6,.05,.2,1);
}
[data-lang="en"] .lang-toggle__pill { transform: translateX(100%); }
.lang-toggle button {
  position: relative;
  z-index: 1;
  border: 0;
  background: transparent;
  padding: 6px 14px;
  cursor: pointer;
  color: var(--ink-3);
  transition: color .25s;
  font: inherit;
  letter-spacing: inherit;
}
[data-lang="it"] .lang-toggle button[data-lang-btn="it"],
[data-lang="en"] .lang-toggle button[data-lang-btn="en"] { color: var(--bg); }

/* burger */
.burger { display: none; }
@media (max-width: 880px) {
  .nav { display: none; }
  .burger {
    display: inline-grid; place-items: center;
    width: 36px; height: 36px;
    border: 1px solid var(--hair);
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
  }
  .burger svg { width: 18px; height: 18px; }
  .nav-mobile {
    display: none;
    border-top: 1px solid var(--hair);
    padding: 12px var(--gutter);
    flex-direction: column;
    gap: 4px;
  }
  .nav-mobile.is-open { display: flex; }
  .nav-mobile a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--hair-2);
    color: var(--ink-2);
  }
  .nav-mobile a.is-active { color: var(--ink); font-weight: 500; }
}
@media (min-width: 881px) {
  .nav-mobile { display: none !important; }
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s, background .15s, color .15s, border-color .15s;
  font-family: inherit;
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn--primary:hover { transform: translateY(-1px); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--hair);
}
.btn--ghost:hover { border-color: var(--ink); }
.btn .arr {
  display: inline-block;
  transition: transform .2s;
}
.btn:hover .arr { transform: translateX(3px); }

/* ========== SECTIONS ========== */

section { padding-block: var(--section-y); }
.section-divider {
  border: 0; height: 1px; background: var(--hair); margin: 0;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-7);
  margin-bottom: var(--space-7);
  align-items: end;
}
@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; gap: var(--space-4); }
}

/* ========== HERO ========== */

.hero {
  padding-block: clamp(60px, 9vw, 120px) var(--section-y);
  position: relative;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-7);
  align-items: center;
}
@media (max-width: 880px) {
  .hero__inner { grid-template-columns: 1fr; }
}
.hero__copy { max-width: 640px; }
.hero__copy .lede { margin-top: var(--space-5); }
.hero__cta { margin-top: var(--space-6); display: flex; gap: 12px; flex-wrap: wrap; }
.hero__meta {
  margin-top: var(--space-7);
  display: flex; gap: var(--space-6);
  border-top: 1px solid var(--hair);
  padding-top: var(--space-5);
}
.hero__meta div { display: flex; flex-direction: column; gap: 4px; }
.hero__meta strong { font-family: var(--font-serif); font-size: 28px; font-weight: 500; letter-spacing: -0.02em; }
.hero__meta small { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }

/* ========== HERO VARIANTS ========== */

/* default: only show QR-form variant */
[data-hero-show] { display: none; }
[data-hero-variant="qr-form"] [data-hero-show="qr-form"],
html:not([data-hero-variant]) [data-hero-show="qr-form"] { display: block; }
[data-hero-variant="book"]    [data-hero-show="book"]    { display: block; }
[data-hero-variant="type"]    [data-hero-show="type"]    { display: block; }

/* Variante B: Libro + QR */
.hero-book {
  width: 100%;
  aspect-ratio: 1;
  max-width: 480px;
  margin-left: auto;
  position: relative;
}
.hero-book__cover {
  position: absolute;
  left: 8%;
  top: 8%;
  width: 64%;
  height: 84%;
  background: var(--bg);
  border: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px 24px;
  font-family: var(--font-serif);
  transform: perspective(1200px) rotateY(-8deg);
  box-shadow: 0 30px 60px -25px rgba(0,0,0,0.25);
}
.hero-book__cover .hero-book__kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.hero-book__cover .hero-book__title {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.hero-book__cover .hero-book__title em {
  font-style: italic;
  color: var(--accent);
}
.hero-book__spine {
  position: absolute;
  left: 0; top: 0; bottom: 0; width: 6px;
  background: linear-gradient(90deg, rgba(0,0,0,0.18), transparent);
}
.hero-book__qr {
  position: absolute;
  width: 26%;
  aspect-ratio: 1;
  background: var(--bg);
  border: 1px solid var(--hair);
  padding: 8px;
  color: var(--ink);
  box-shadow: 0 16px 30px -16px rgba(0,0,0,0.3);
  animation: heroQrFloat 3.6s ease-in-out infinite;
  animation-delay: var(--d, 0s);
}
.hero-book__qr svg { width: 100%; height: 100%; }
.hero-book__qr--1 { right: 0; top: 6%; }
.hero-book__qr--2 { right: 12%; top: 44%; --d: .6s; }
.hero-book__qr--3 { right: 4%; bottom: 8%; --d: 1.2s; }
@keyframes heroQrFloat {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(-10px) rotate(2deg); }
}

/* Variante C: Solo tipografia */
.hero-type {
  width: 100%;
  aspect-ratio: 1;
  max-width: 520px;
  margin-left: auto;
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  position: relative;
}
.hero-type__line {
  font-family: var(--font-sans);
  font-size: clamp(120px, 22vw, 280px);
  line-height: 0.85;
  letter-spacing: -0.06em;
  font-weight: 500;
  color: var(--ink);
}
.hero-type__line--1 { grid-row: 1; align-self: end; }
.hero-type__line--2 {
  grid-row: 1;
  align-self: end;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  margin-top: -0.15em;
  margin-left: 0.4em;
}
.hero-type__line--3 {
  position: absolute;
  right: 0;
  top: 0;
  font-size: clamp(80px, 14vw, 180px);
  color: var(--accent);
  line-height: 1;
}
.hero-type__caption {
  grid-row: 2;
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-top: 1px solid var(--hair);
  padding-top: 16px;
}


.qr-forming {
  width: 100%;
  aspect-ratio: 1;
  max-width: 480px;
  margin-left: auto;
  position: relative;
}
.qr-forming svg { width: 100%; height: 100%; }

/* ========== HOW-IT-WORKS / STEPS ========== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hair);
  border-block: 1px solid var(--hair);
}
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--bg);
  padding: var(--space-7) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}
.step__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}
.step__title { font-size: 22px; letter-spacing: -0.01em; font-weight: 500; }
.step__desc { color: var(--ink-3); font-size: 15px; line-height: 1.55; max-width: 36ch; }

/* ========== FEATURES ========== */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 880px) { .features { grid-template-columns: 1fr; } }
.feature {
  border-top: 1px solid var(--ink);
  padding-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.feature__kicker { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; color: var(--ink-3); }
.feature__title { font-size: 20px; font-weight: 500; letter-spacing: -0.01em; margin-top: 4px; }
.feature__body { color: var(--ink-3); font-size: 15px; line-height: 1.55; }

/* ========== INTERACTIVE BOOK DEMO ========== */

.demo {
  background: var(--bg-2);
  border-block: 1px solid var(--hair);
  padding-block: var(--section-y);
}
.demo__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
@media (max-width: 880px) { .demo__inner { grid-template-columns: 1fr; gap: var(--space-6);} }

.book {
  position: relative;
  aspect-ratio: 4/5;
  background: #fff;
  box-shadow:
    0 1px 0 rgba(0,0,0,0.04),
    0 30px 60px -20px rgba(0,0,0,0.18),
    0 8px 20px -10px rgba(0,0,0,0.12);
  border-radius: 2px 6px 6px 2px;
  overflow: hidden;
  transform: perspective(1400px) rotateY(-6deg);
  transition: transform .5s cubic-bezier(.2,.8,.2,1);
  max-width: 480px;
  margin: 0 auto;
}
.book:hover { transform: perspective(1400px) rotateY(-2deg); }
.book::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 12px;
  background: linear-gradient(90deg, rgba(0,0,0,0.12), transparent);
  z-index: 2;
  pointer-events: none;
}
.book__page {
  position: absolute;
  inset: 0;
  padding: 36px 30px 36px 42px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-serif);
  color: var(--ink-2);
}
.book__page h4 {
  font-size: 16px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.book__page h3 {
  font-size: 24px;
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
  font-family: var(--font-serif);
  margin-bottom: 10px;
  line-height: 1.15;
}
.book__line {
  height: 1px;
  background: var(--hair);
  margin-bottom: 4px;
}
.book__para {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-2);
}
.book__para .qr-spot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 4px 2px 6px;
  border: 1px solid var(--hair);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  transition: all .2s;
  vertical-align: middle;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.book__para .qr-spot:hover,
.book__para .qr-spot.is-active {
  border-color: var(--accent);
  color: var(--accent);
}
.book__para .qr-spot .qr-mini {
  width: 18px; height: 18px;
}
.book__page-num {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  text-align: center;
}

.demo__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.demo__phone {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 9/19;
  background: #111;
  border-radius: 36px;
  padding: 12px;
  position: relative;
  margin: 0 auto;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.3), inset 0 0 0 2px #000;
}
.demo__screen {
  width: 100%; height: 100%;
  background: #fff;
  border-radius: 26px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}
.demo__screen-header {
  padding: 18px 16px 12px;
  border-bottom: 1px solid var(--hair);
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.demo__screen-header .dot { width: 6px; height: 6px; border-radius: 50%; background: #22c55e; }
.demo__screen-body {
  flex: 1;
  position: relative;
  overflow: hidden;
}
.demo__content {
  position: absolute; inset: 0;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .35s, transform .35s;
  pointer-events: none;
}
.demo__content.is-active { opacity: 1; transform: none; pointer-events: auto; }
.demo__content h5 {
  font-size: 14px; font-weight: 500; letter-spacing: -0.01em;
  margin: 0;
}
.demo__content p { font-size: 12px; line-height: 1.5; margin: 0; color: var(--ink-3); }
.demo__media {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--ink);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  display: grid; place-items: center;
  color: #fff;
}
.demo__media--video::after {
  content: "";
  width: 0; height: 0;
  border-left: 14px solid #fff;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  margin-left: 4px;
}
.demo__media--audio {
  background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
}
.demo__waves { display: flex; gap: 3px; align-items: flex-end; height: 40%; }
.demo__waves span {
  display: block; width: 3px; background: #fff; border-radius: 2px;
  animation: wave 1s ease-in-out infinite;
}
.demo__waves span:nth-child(2) { animation-delay: .12s; }
.demo__waves span:nth-child(3) { animation-delay: .24s; }
.demo__waves span:nth-child(4) { animation-delay: .36s; }
.demo__waves span:nth-child(5) { animation-delay: .48s; }
@keyframes wave { 0%, 100% { height: 30%; } 50% { height: 100%; } }

.demo__media--doc {
  background: #fff;
  border: 1px solid var(--hair);
  color: var(--ink);
  flex-direction: column;
  gap: 6px;
  padding: 16px;
}
.demo__media--doc .dline {
  width: 100%; height: 4px; border-radius: 2px;
  background: var(--hair-2);
}
.demo__media--doc .dline:nth-child(2) { width: 80%; }
.demo__media--doc .dline:nth-child(3) { width: 60%; }
.demo__media--doc .dline:nth-child(4) { width: 90%; }

.demo__hint {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-4);
}

/* ========== FAQ ========== */

.faq-list { border-top: 1px solid var(--ink); }
.faq-item {
  border-bottom: 1px solid var(--hair);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-5) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: clamp(18px, 1.6vw, 22px);
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .plus {
  width: 24px; height: 24px;
  position: relative;
  flex: 0 0 auto;
  transition: transform .3s;
}
.faq-item .plus::before, .faq-item .plus::after {
  content: ""; position: absolute; background: var(--ink);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.faq-item .plus::before { width: 14px; height: 1.5px; }
.faq-item .plus::after { width: 1.5px; height: 14px; transition: transform .3s; }
.faq-item[open] .plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item .faq-body {
  padding: 0 0 var(--space-6);
  color: var(--ink-3);
  font-size: 16px;
  max-width: 70ch;
  line-height: 1.6;
}

/* ========== TWO-COL CONTENT (article pages) ========== */

.page-hero {
  padding-block: clamp(80px, 11vw, 140px) var(--space-7);
  border-bottom: 1px solid var(--hair);
}
.page-hero__inner { max-width: 900px; }
.page-hero h1 { margin-top: var(--space-3); }
.page-hero .lede { margin-top: var(--space-5); }

.prose {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-7);
}
@media (max-width: 880px) { .prose { grid-template-columns: 1fr; gap: var(--space-3); } }
.prose__label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); padding-top: 4px; }
.prose__body { max-width: 70ch; font-size: 17px; line-height: 1.65; color: var(--ink-2); }
.prose__body h2 { margin-top: var(--space-7); margin-bottom: var(--space-3); font-size: 28px; letter-spacing: -0.02em; color: var(--ink); }
.prose__body h2:first-child { margin-top: 0; }
.prose__body p { margin: 0 0 1em; }
.prose__body strong { color: var(--ink); }
.prose__body ul {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.prose__body ul li {
  position: relative;
  padding-left: 28px;
  border-top: 1px solid var(--hair);
  padding-top: var(--space-4);
}
.prose__body ul li:first-child { border-top: 0; padding-top: 0; }
.prose__body ul li:first-child { padding-top: 0; }
.prose__body ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 26px;
  width: 14px; height: 1.5px;
  background: var(--accent);
}
.prose__body ul li:first-child::before { top: 12px; }
.prose__body ul li b, .prose__body ul li strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 500;
  color: var(--ink);
}

/* ========== BOOKS GRID ========== */

.books-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
@media (max-width: 1000px) { .books-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px)  { .books-grid { grid-template-columns: repeat(2, 1fr); } }
.book-card { display: flex; flex-direction: column; gap: var(--space-3); }
.book-card__cover {
  aspect-ratio: 2/3;
  position: relative;
  background: linear-gradient(135deg, var(--c1, #1a1a1a), var(--c2, #2a2a2a));
  overflow: hidden;
  box-shadow: 0 10px 30px -15px rgba(0,0,0,0.3), inset 6px 0 12px -6px rgba(0,0,0,0.4);
  border-radius: 1px 4px 4px 1px;
  color: #fff;
  padding: 18px 16px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-serif);
  transition: transform .3s;
}
.book-card:hover .book-card__cover { transform: translateY(-4px); }
.book-card__cover .meta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.7;
}
.book-card__cover .ttl {
  font-size: 17px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-top: 4px;
}
.book-card__cover .auth {
  margin-top: auto;
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
}
.book-card__cover .qr-tag {
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 28px; height: 28px;
  background: #fff;
  border-radius: 3px;
  padding: 3px;
}
.book-card__cover .qr-tag svg { width: 100%; height: 100%; }
.book-card__title { font-size: 14px; font-weight: 500; }
.book-card__sub { font-size: 12px; color: var(--ink-3); font-family: var(--font-mono); letter-spacing: 0.04em; }

/* ========== CONTACT ========== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info { display: flex; flex-direction: column; gap: var(--space-5); }
.contact-block { display: grid; grid-template-columns: 110px 1fr; gap: var(--space-3); padding: var(--space-4) 0; border-top: 1px solid var(--hair); }
.contact-block:first-child { border-top: 0; padding-top: 0; }
.contact-block__label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); padding-top: 3px; }
.contact-block__value { font-size: 16px; line-height: 1.5; }
.contact-block__value a { border-bottom: 1px solid var(--hair); padding-bottom: 1px; }
.contact-block__value a:hover { border-color: var(--accent); color: var(--accent);}

.form { display: flex; flex-direction: column; gap: var(--space-4); }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.field input, .field textarea {
  border: 0;
  border-bottom: 1px solid var(--hair);
  padding: 10px 0;
  font: inherit;
  font-size: 16px;
  background: transparent;
  outline: none;
  color: var(--ink);
  border-radius: 0;
  transition: border-color .15s;
}
.field input:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 110px; }

/* ========== CTA STRIP ========== */

.cta-strip {
  background: var(--ink);
  color: var(--bg);
  padding-block: var(--section-y);
  position: relative;
  overflow: hidden;
}
.cta-strip__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-7);
  align-items: end;
}
@media (max-width: 880px) { .cta-strip__inner { grid-template-columns: 1fr; } }
.cta-strip h2 { color: var(--bg); font-size: clamp(36px, 5vw, 64px); letter-spacing: -0.025em; line-height: 1; }
.cta-strip h2 em { font-family: var(--font-serif); font-style: italic; font-weight: 400; }
.cta-strip .btn--primary { background: var(--bg); color: var(--ink); }
.cta-strip p { color: rgba(255,255,255,0.7); margin: 0; font-size: 16px; }

/* ========== FOOTER ========== */

.site-footer {
  border-top: 1px solid var(--hair);
  padding: var(--space-7) 0 var(--space-5);
  font-size: 13px;
  color: var(--ink-3);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}
@media (max-width: 720px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}
.site-footer__brand { max-width: 420px; display: flex; align-items: flex-start; gap: var(--space-5); }
.site-footer__brand .brand--footer { flex: none; }
.site-footer__brand p { color: var(--ink-3); font-size: 13px; line-height: 1.55; margin: 0; max-width: 28ch; }
.site-footer h6 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
  color: var(--ink);
  font-weight: 500;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.site-footer ul a:hover { color: var(--ink); }
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--hair);
  padding-top: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-4);
}

/* ========== BIG MARQUEE / LOGOTYPE ========== */

.wordmark-row {
  border-block: 1px solid var(--hair);
  padding-block: var(--space-7);
  overflow: hidden;
}
.wordmark {
  font-size: clamp(80px, 18vw, 240px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--ink);
  white-space: nowrap;
  font-family: var(--font-sans);
}
.wordmark em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

/* ========== UTILS ========== */

.fade-in {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .6s, transform .6s;
}
.fade-in.is-visible { opacity: 1; transform: none; }

.lang-it [data-lang-show="en"], .lang-en [data-lang-show="it"] { display: none !important; }

.footer-legal-inline{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.footer-legal-inline .sep{opacity:.4}
.footer-legal-inline a{color:var(--ink-3);text-decoration:none;border-bottom:1px solid transparent}
.footer-legal-inline a:hover{color:var(--ink);border-bottom-color:var(--hair)}
.legal{max-width:70ch;margin:0 auto}
.legal h2{font-size:clamp(20px,2.2vw,26px);margin:var(--space-6) 0 var(--space-3);letter-spacing:-.01em}
.legal h3{font-size:16px;margin:var(--space-5) 0 var(--space-2);font-weight:600}
.legal p,.legal li{font-size:15.5px;line-height:1.7;color:var(--ink-2)}
.legal p{margin:0 0 var(--space-3)}
.legal ul,.legal ol{padding-left:1.15em;margin:0 0 var(--space-4);display:flex;flex-direction:column;gap:10px}
.legal strong{color:var(--ink);font-weight:600}
.legal a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--hair)}
.legal a:hover{border-bottom-color:var(--ink)}
.legal__updated{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin-bottom:var(--space-6);display:block}
.legal__note{margin-top:var(--space-7);padding-top:var(--space-5);border-top:1px solid var(--hair);font-size:13px;color:var(--ink-3)}

/* ===== Bilingual legal blocks ===== */
[data-lang-only]{display:none}
body.lang-it [data-lang-only="it"]{display:block}
body.lang-en [data-lang-only="en"]{display:block}

/* ===== Cookie consent ===== */
.cc{position:fixed;inset:auto 0 0 0;z-index:9999;display:flex;justify-content:center;padding:var(--space-4);pointer-events:none}
.cc__panel{pointer-events:auto;width:min(720px,100%);background:var(--bg);border:1px solid var(--hair);border-radius:14px;box-shadow:0 18px 60px rgba(0,0,0,.18),0 2px 8px rgba(0,0,0,.06);padding:var(--space-5);transform:translateY(14px);opacity:0;transition:transform .26s cubic-bezier(.2,.7,.3,1),opacity .26s}
.cc.is-open .cc__panel{transform:none;opacity:1}
.cc__head h2{font-size:17px;margin:0 0 8px;letter-spacing:-.01em}
.cc__head p{font-size:13.5px;line-height:1.6;color:var(--ink-2);margin:0 0 10px;max-width:62ch}
.cc__links{display:flex;gap:16px;flex-wrap:wrap;margin:0}
.cc__links a{font-size:12.5px;color:var(--ink-3);text-decoration:none;border-bottom:1px solid var(--hair)}
.cc__links a:hover{color:var(--ink);border-bottom-color:var(--ink)}
.cc__actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:var(--space-4)}
.cc__actions .btn{flex:1 1 auto;min-width:130px;justify-content:center;text-align:center;font-size:13.5px;padding:11px 16px}
.cc__cats{display:flex;flex-direction:column;gap:2px;margin-top:var(--space-3)}
.cc__cat{display:flex;align-items:flex-start;gap:16px;padding:14px 0;border-bottom:1px solid var(--hair);cursor:pointer}
.cc__cat:last-child{border-bottom:none}
.cc__cat.is-locked{cursor:default}
.cc__cat-txt{flex:1;display:flex;flex-direction:column;gap:3px}
.cc__cat-txt strong{font-size:14px;font-weight:600;color:var(--ink)}
.cc__cat-txt small{font-size:12.5px;line-height:1.55;color:var(--ink-3)}
.cc__always{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);flex:none;padding-top:3px}
.cc__cat input{position:absolute;opacity:0;pointer-events:none}
.cc__sw{flex:none;width:42px;height:24px;border-radius:999px;background:var(--hair);position:relative;transition:background .2s;margin-top:1px}
.cc__sw::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--bg);box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .2s}
.cc__cat input:checked + .cc__sw{background:var(--ink)}
.cc__cat input:checked + .cc__sw::after{transform:translateX(18px)}
.cc__cat input:focus-visible + .cc__sw{outline:2px solid var(--ink);outline-offset:2px}
@media (max-width:560px){.cc__actions .btn{flex:1 1 100%}}

.consent-check{display:flex;align-items:flex-start;gap:12px;margin-top:var(--space-4);cursor:pointer}
.consent-check input{position:absolute;opacity:0;width:0;height:0}
.consent-check__box{flex:none;width:18px;height:18px;margin-top:2px;border:1px solid var(--ink-3);border-radius:4px;position:relative;transition:background .15s,border-color .15s}
.consent-check__box::after{content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;border:solid var(--bg);border-width:0 2px 2px 0;transform:rotate(45deg) scale(0);transition:transform .15s}
.consent-check input:checked + .consent-check__box{background:var(--ink);border-color:var(--ink)}
.consent-check input:checked + .consent-check__box::after{transform:rotate(45deg) scale(1)}
.consent-check input:focus-visible + .consent-check__box{outline:2px solid var(--ink);outline-offset:2px}
.consent-check__txt{font-size:13px;line-height:1.55;color:var(--ink-2)}
.consent-check__txt a{color:var(--ink);border-bottom:1px solid var(--hair)}
.consent-check__txt a:hover{border-bottom-color:var(--ink)}
.form-note{font-size:12px;line-height:1.55;color:var(--ink-3);margin:var(--space-3) 0 0;max-width:60ch}
.form-note a{color:var(--ink-3);border-bottom:1px solid var(--hair)}
.form-note a:hover{color:var(--ink)}

/* ===== Responsive fixes ===== */
/* Le tracce 1fr assumono min-width:auto: il contenuto intrinseco (SVG, testo
   non spezzabile) allarga la griglia oltre il viewport. minmax(0,…) lo impedisce. */
html [data-hero-show]{display:none}
html[data-hero-variant="qr-form"] [data-hero-show="qr-form"],html:not([data-hero-variant]) [data-hero-show="qr-form"]{display:block}
html[data-hero-variant="book"] [data-hero-show="book"]{display:block}
html[data-hero-variant="type"] [data-hero-show="type"]{display:grid}
.hero-type{max-width:min(520px,100%)}
.hero-type__line{overflow-wrap:anywhere}
@media (max-width:720px){.hero-type__line--2{margin-left:0}}
.hero__inner{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}
@media (max-width:880px){.hero__inner{grid-template-columns:minmax(0,1fr)}}
.hero__copy,.hero__visual{min-width:0}
.qr-forming{width:100%;max-width:440px;margin-inline:auto}
.qr-forming svg{width:100%;height:auto;display:block}
.hero-book{margin-inline:auto}
.demo__inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
@media (max-width:880px){.demo__inner{grid-template-columns:minmax(0,1fr)}}
.site-header__inner{gap:var(--space-4);min-width:0}
.brand{min-width:0;flex:0 1 auto}
.header-tools{margin-left:auto;flex:none}
@media (max-width:560px){.brand__sub{display:none}}
@media (max-width:1000px){.wordmark{white-space:normal;line-height:1.02}}
@media (max-width:720px){
  .wordmark{font-size:clamp(40px,13vw,96px)}
  .hero-type__line{font-size:clamp(72px,20vw,140px)}
  .hero__cta{gap:10px}
  .hero__cta .btn{flex:1 1 100%;justify-content:center}
}