/* Docevo — landing site. Contratto di design: Ink & Archive (vedi docs/DESIGN.AI.md) */

:root {
  --ink: #1E2A52;
  --ink-soft: #3D4A75;
  --ink-raise: rgba(30, 42, 82, 0.04);
  --amber: #E8A33D;
  --amber-press: #D18E28;
  --bg: #F7F8FA;
  --card: #FFFFFF;
  --paper: #FFFFFF;
  --text: #22293B;
  --muted: #5C6577;
  --border: #D5DAE3;
  --border-soft: #E6E9EF;
  --danger: #C0392B;
  --ok: #2E7D6B;

  --primary: var(--amber);
  --primary-ink: var(--ink);
  --warn: var(--danger);

  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);

  --header-bg: #1E2A52;
  --header-text: #F2F4FB;
  --radius: 10px;
  --shadow-sheet: 2px 2px 0 var(--border-soft), 4px 5px 0 -1px var(--border-soft);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #CDD6EE;
    --ink-soft: #8F9BBF;
    --bg: #151C36;
    --card: #1C2445;
    --paper: #F7F8FA;
    --text: #E8EBF4;
    --muted: #9AA3BD;
    --border: #303A5E;
    --border-soft: #26304F;
    --danger: #E08A7D;
    --ok: #7FBFAE;
    --ink-raise: rgba(205, 214, 238, 0.06);

    --header-bg: #1C2445;
    --header-text: #F2F4FB;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: none;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.125rem; }

p { margin: 0 0 1em; }

a {
  color: var(--text);
  text-decoration-color: var(--amber);
  text-underline-offset: 3px;
}

.material-symbols {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

.container-narrow {
  width: min(760px, 100% - 2.5rem);
}

button,
a,
[role="button"],
.nav-link,
.btn,
.hamburger,
.accordion-item summary {
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  color: var(--header-text);
}

.site-header {
  padding-top: env(safe-area-inset-top, 0px);
}

.header-inner {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  padding-block: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.brand-name {
  color: var(--header-text);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  color: var(--header-text);
  text-decoration: none;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.95rem;
}

.nav-link {
  transition: background-color 150ms ease;
}

@media (hover: hover) and (pointer: fine) {
  .nav-link:hover {
    background: rgba(242, 244, 251, 0.12);
  }
}

.nav-link.active {
  background: var(--amber);
  color: #1E2A52;
  font-weight: 600;
}

.btn {
  display: inline-block;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.65rem 1.4rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: var(--amber);
  color: #1E2A52;
}

.btn {
  transition: transform 160ms var(--ease-out);
}

.btn:active {
  transform: scale(0.97);
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: var(--amber-press);
  }
}

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

@media (hover: hover) and (pointer: fine) {
  .btn-ghost:hover {
    border-color: var(--amber);
    color: var(--ink);
  }
}

.btn-nav {
  margin-left: 0.5rem;
  padding: 0.45rem 1.1rem;
}

.hamburger {
  display: none;
  background: transparent;
  border: 1px solid rgba(242, 244, 251, 0.35);
  border-radius: var(--radius);
  color: var(--header-text);
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  cursor: pointer;
}

/* ---------- Hero ---------- */

.hero {
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4rem);
  background:
    linear-gradient(var(--bg), var(--bg));
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.lead {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 34rem;
}

.hl {
  box-shadow: inset 0 -0.42em 0 rgba(232, 163, 61, 0.35);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 1rem;
}

.hero-note {
  color: var(--muted);
  font-size: 0.925rem;
}

/* ---------- Sezioni ---------- */

.section {
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.section-tint {
  background: var(--card);
  border-block: 1px solid var(--border-soft);
}

.section-lead {
  color: var(--muted);
  max-width: 46rem;
  margin-bottom: 2rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

/* ---------- Card ---------- */

.card-grid {
  display: grid;
  gap: 1.25rem;
}

.card-grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid.two {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.section-tint .card {
  background: var(--bg);
}

.card:hover {
  background: var(--ink-raise);
}

.card h3 {
  margin-top: 0.75rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.975rem;
}

.card-icon {
  color: var(--ink-soft);
  background: var(--ink-raise);
  border-radius: var(--radius);
  padding: 0.5rem;
  font-size: 26px;
}

.security-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.security-item h3 {
  margin-top: 0;
}

/* ---------- Preview "foglio" ---------- */

.preview-box {
  background: var(--paper);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  box-shadow: var(--shadow-sheet);
  padding: 1.5rem;
}

.doc-card-head {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  margin-bottom: 0.9rem;
}

.doc-icon {
  color: #3D4A75;
  background: rgba(61, 74, 117, 0.08);
  border-radius: 8px;
  padding: 0.4rem;
}

.doc-name {
  margin: 0;
  color: #22293B;
  font-weight: 600;
}

.doc-meta {
  margin: 0;
  color: #5C6577;
  font-size: 0.85rem;
}

.doc-card-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.preview-text {
  color: #22293B;
  font-size: 0.925rem;
}

.preview-text p {
  margin-bottom: 0.5rem;
}

.preview-text p:last-child {
  margin-bottom: 0;
}

/* ---------- Badge ---------- */

.badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge.admin {
  background: #1E2A52;
  color: #F2F4FB;
}

.badge.operator {
  background: rgba(30, 42, 82, 0.08);
  color: #1E2A52;
}

.badge.client,
.badge.multi {
  background: rgba(232, 163, 61, 0.18);
  color: #7A5410;
}

.badge.completed {
  background: rgba(46, 125, 107, 0.14);
  color: #1F5B4C;
}

.badge.pending {
  background: rgba(192, 57, 43, 0.12);
  color: #C0392B;
}

@media (prefers-color-scheme: dark) {
  .badge.admin { background: #3D4A75; color: #F2F4FB; }
  .badge.operator { background: rgba(205, 214, 238, 0.12); color: #CDD6EE; }
  .badge.client, .badge.multi { background: rgba(232, 163, 61, 0.22); color: #F0C987; }
  .badge.completed { background: rgba(127, 191, 174, 0.16); color: #7FBFAE; }
  .badge.pending { background: rgba(224, 138, 125, 0.16); color: #E08A7D; }
  .doc-icon { color: #8F9BBF; background: rgba(143, 155, 191, 0.12); }
}

/* ---------- Passi ---------- */

.steps {
  margin: 1.25rem 0 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.9rem;
}

.steps li::marker {
  color: var(--amber-press);
  font-weight: 700;
}

/* ---------- Tabella ---------- */

.table-wrap {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.section-tint .table {
  background: var(--bg);
}

.table th {
  text-align: left;
  color: var(--ink-soft);
  font-size: 0.85rem;
  text-transform: none;
  padding: 0.85rem 1rem;
  border-bottom: 2px solid var(--border);
}

.table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

@media (hover: hover) and (pointer: fine) {
  .table tbody tr:hover {
    background: var(--ink-raise);
  }
}

/* ---------- Accordion ---------- */

.accordion {
  display: grid;
  gap: 0.75rem;
}

.accordion-item {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 0 1.25rem;
}

.section-tint .accordion-item {
  background: var(--bg);
}

.accordion-item summary {
  cursor: pointer;
  padding: 1rem 0;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  position: relative;
  padding-right: 2rem;
}

.accordion-item summary::-webkit-details-marker {
  display: none;
}

.accordion-item summary::after {
  content: "expand_more";
  font-family: "Material Symbols Outlined";
  position: absolute;
  right: 0;
  top: 1rem;
  color: var(--ink-soft);
  transition: transform 0.15s ease;
}

.accordion-item[open] summary::after {
  transform: rotate(180deg);
}

.accordion-item p {
  margin: 0 0 1.1rem;
  color: var(--muted);
}

.accordion-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 250ms var(--ease-out);
}

.accordion-item[open] .accordion-body {
  grid-template-rows: 1fr;
}

.accordion-inner {
  overflow: hidden;
  min-height: 0;
  opacity: 0;
  transition: opacity 200ms var(--ease-out);
}

.accordion-item[open] .accordion-inner {
  opacity: 1;
}

/* ---------- Form ---------- */

.form {
  display: grid;
  gap: 1rem;
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.section:not(.section-tint) .form {
  background: var(--card);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}

.form input,
.form textarea {
  font: inherit;
  font-size: 16px;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 0.85rem;
  width: 100%;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 2px rgba(232, 163, 61, 0.3);
}

.form textarea {
  resize: vertical;
}

.form-status {
  margin: 0;
  font-size: 0.925rem;
  color: var(--ok);
  min-height: 1.2em;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);
}

.form-status.visible {
  opacity: 1;
  transform: translateY(0);
}

.form-status.error {
  color: var(--danger);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--header-bg);
  color: var(--header-text);
  padding: 2.5rem 0 2rem;
  margin-top: 2rem;
}

.footer-inner {
  display: grid;
  gap: 1.25rem;
}

.footer-brand p {
  color: rgba(242, 244, 251, 0.75);
  font-size: 0.925rem;
  margin: 0.35rem 0 0;
  max-width: 26rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-nav a {
  color: var(--header-text);
  text-decoration: none;
  font-size: 0.95rem;
}

@media (hover: hover) and (pointer: fine) {
  .footer-nav a:hover {
    text-decoration: underline;
    text-decoration-color: var(--amber);
  }
}

.footer-legal {
  margin: 0;
  color: rgba(242, 244, 251, 0.6);
  font-size: 0.85rem;
  border-top: 1px solid rgba(242, 244, 251, 0.18);
  padding-top: 1.25rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 950px) {
  .hero-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .card-grid.three {
    grid-template-columns: repeat(2, 1fr);
  }

  .header-right {
    position: relative;
  }

  .hamburger {
    display: inline-flex;
    align-items: center;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 220px;
    flex-direction: column;
    align-items: stretch;
    background: #26304F;
    border: 1px solid rgba(242, 244, 251, 0.15);
    border-radius: var(--radius);
    padding: 0.5rem;
    gap: 0.15rem;
    text-align: right;
  }

  .main-nav.menu-open {
    display: flex;
    transform-origin: top right;
    transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);

    @starting-style {
      opacity: 0;
      transform: scale(0.95);
    }
  }

  .main-nav .nav-link,
  .main-nav .btn-nav {
    display: block;
    margin-left: 0;
  }
}

@media (max-width: 770px) {
  html {
    scroll-padding-top: calc(132px + env(safe-area-inset-top, 0px));
  }

  .header-inner {
    flex-wrap: wrap;
    justify-content: center;
    row-gap: 0.4rem;
  }

  .brand {
    width: 100%;
    justify-content: center;
  }

  .header-right {
    width: 100%;
    justify-content: space-between;
  }

  .main-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    min-width: 0;
    text-align: left;
    border-radius: 0 0 var(--radius) var(--radius);
  }

  .main-nav .nav-link,
  .main-nav .btn-nav {
    text-align: left;
  }

  .main-nav.menu-open {
    transform-origin: top center;
  }

  .card-grid.three,
  .card-grid.two,
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ---------- v0.3 — scenografia hero e ritmo di pagina ---------- */

.kicker {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin: 0 0 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--amber);
  flex: none;
}

.hero {
  background:
    linear-gradient(var(--bg) 0%, var(--bg) 100%),
    repeating-linear-gradient(-45deg, transparent 0 22px, var(--ink-raise) 22px 23px);
  background-blend-mode: normal;
  border-bottom: 1px solid var(--border-soft);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin: 1.75rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--border-soft);
}

.hero-stats .stat dt {
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 0.15rem;
}

.hero-stats .stat dd {
  margin: 0;
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-visual {
  position: relative;
  padding: 1.2rem 0.6rem 1.6rem 0;
}

.sheet {
  position: absolute;
  inset: 0;
  background: var(--paper);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
}

.sheet-back-1 {
  transform: rotate(3deg) translate(10px, 8px);
  opacity: 0.75;
}

.sheet-back-2 {
  transform: rotate(-2.5deg) translate(-8px, 14px);
  opacity: 0.5;
}

.sheet-front {
  position: relative;
  transform: rotate(-1deg);
}

.hero-copy > * {
  animation: hero-rise 600ms var(--ease-out) both;
}

.hero-copy > *:nth-child(2) { animation-delay: 60ms; }
.hero-copy > *:nth-child(3) { animation-delay: 120ms; }
.hero-copy > *:nth-child(4) { animation-delay: 180ms; }
.hero-copy > *:nth-child(5) { animation-delay: 240ms; }

.hero-visual {
  animation: hero-rise 700ms var(--ease-out) 150ms both;
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.steps {
  list-style: none;
  padding-left: 0;
  margin: 1.25rem 0 0;
  display: block;
  position: relative;
}

.steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--border);
}

.steps li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.steps li + li {
  margin-top: 1.4rem;
}

.steps li::marker {
  content: none;
}

.step-num {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--amber);
  color: var(--ink);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.card {
  transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sheet);
  }
}

.cta-band {
  background: var(--header-bg);
  border-bottom: none;
}

.cta-band h2,
.cta-band .cta-band-lead {
  color: var(--header-text);
}

.cta-band-lead {
  color: rgba(242, 244, 251, 0.75);
  margin: 0;
  max-width: 36rem;
}

.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.btn-big {
  font-size: 1.05rem;
  padding: 0.85rem 1.8rem;
}

@media (max-width: 770px) {
  .hero-stats {
    gap: 1.25rem;
  }

  .hero-visual {
    padding-right: 0;
  }

  .cta-band-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy > *,
  .hero-visual {
    animation: none;
  }

  .card {
    transition: none;
  }
}

/* ---------- v0.4 — sorprendente: hero ink full-viewport, numeri giganti, timbro, browser mock ---------- */

.hero {
  background:
    repeating-linear-gradient(-45deg, transparent 0 26px, rgba(242, 244, 251, 0.045) 26px 27px),
    #1E2A52;
  border-bottom: none;
  min-height: calc(100svh - 64px);
  display: flex;
  align-items: center;
  padding-block: clamp(3rem, 7vw, 5rem);
}

.hero .kicker {
  color: #9AA3BD;
}

.hero .kicker::before {
  background: var(--amber);
}

.hero h1,
.hero .stat dd {
  color: #F2F4FB;
}

.hero .lead,
.hero .stat dt {
  color: #9AA3BD;
}

.hero .hl {
  box-shadow: inset 0 -0.42em 0 rgba(232, 163, 61, 0.4);
  color: #F2F4FB;
}

.hero-stats {
  border-top-color: rgba(242, 244, 251, 0.18);
}

.btn-ghost-light {
  color: #F2F4FB;
  border-color: rgba(242, 244, 251, 0.55);
}

.btn-ghost-light:hover {
  border-color: var(--amber);
  color: #F2F4FB;
}

.sheet-back-1,
.sheet-back-2 {
  background: #26304F;
  border-color: #303A5E;
}

.sheet-front {
  transition: transform 300ms var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .hero-visual:hover .sheet-front {
    transform: rotate(0deg);
  }

  .hero-visual:hover .sheet-back-1 {
    transform: rotate(5deg) translate(14px, 10px);
  }

  .hero-visual:hover .sheet-back-2 {
    transform: rotate(-4deg) translate(-12px, 18px);
  }
}

.stamp {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  transform: rotate(8deg);
  border: 3px double var(--ok);
  border-radius: 6px;
  padding: 0.25rem 0.7rem;
  color: var(--ok);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.9;
  background: rgba(46, 125, 107, 0.06);
}

.doc-card {
  position: relative;
}

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  margin-bottom: 0.5rem;
}

.sec-num {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink-soft);
  opacity: 0.55;
  flex: none;
  letter-spacing: -0.03em;
}

.browser {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-sheet);
}

.browser .preview-box {
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 0.9rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border-soft);
}

.b-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  flex: none;
}

.b-url {
  margin-left: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 0.15rem 0.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quote-band {
  background: var(--header-bg);
}

.quote-band blockquote {
  margin: 0;
  text-align: center;
}

.quote-band blockquote p {
  color: #F2F4FB;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  max-width: 44rem;
  margin: 0 auto 1rem;
}

.quote-band cite {
  color: #9AA3BD;
  font-style: normal;
  font-size: 0.95rem;
}

@media (prefers-color-scheme: dark) {
  .hero {
    background:
      repeating-linear-gradient(-45deg, transparent 0 26px, rgba(205, 214, 238, 0.05) 26px 27px),
      #1C2445;
  }

  .sheet-back-1,
  .sheet-back-2 {
    background: #151C36;
    border-color: #303A5E;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sheet-front {
    transition: none;
  }
}

/* ---------- v0.5 — dinamico: contatori, tilt 3D, ticker audit log ---------- */

.tilt {
  position: relative;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 200ms var(--ease-out);
  will-change: transform;
}

.ticker {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  border-top: 1px solid rgba(242, 244, 251, 0.14);
  background: rgba(21, 28, 54, 0.55);
  padding: 0.55rem 0 calc(0.55rem + env(safe-area-inset-bottom, 0px));
}

.ticker-track {
  display: inline-flex;
  align-items: center;
  gap: 1.75rem;
  white-space: nowrap;
  padding-left: 1.75rem;
  animation: ticker-scroll 36s linear infinite;
}

.tick {
  color: #9AA3BD;
  font-size: 0.82rem;
}

.tick-sep {
  width: 6px;
  height: 6px;
  background: var(--amber);
  transform: rotate(45deg);
  flex: none;
}

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.hero {
  position: relative;
  padding-bottom: clamp(4rem, 8vw, 5.5rem);
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
  }

  .tilt {
    transition: none;
  }
}

/* ---------- v0.6 — mini-UI della richiesta documento (sezione 03) ---------- */

.req-ui {
  background: var(--paper);
  padding: 1.4rem 1.5rem 1.2rem;
}

.req-head {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-soft);
}

.req-head > div {
  flex: 1;
  min-width: 0;
}

.req-state {
  flex: none;
}

.req-files {
  list-style: none;
  margin: 0;
  padding: 0;
}

.req-files li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border-soft);
}

.req-files li > div {
  flex: 1;
  min-width: 0;
}

.req-ic {
  font-size: 22px;
  flex: none;
}

.req-files li.done .req-ic {
  color: var(--ok);
}

.req-files li.waiting .req-ic {
  color: var(--muted);
}

.req-file {
  margin: 0;
  color: #22293B;
  font-weight: 600;
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.req-sub {
  margin: 0;
  color: #5C6577;
  font-size: 0.78rem;
}

.req-files .badge {
  flex: none;
}

.req-progress {
  margin-top: 1rem;
  height: 8px;
  border-radius: 999px;
  background: var(--border-soft);
  overflow: hidden;
}

.req-progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--ok);
  transition: width 600ms var(--ease-out);
}

.req-foot {
  margin: 0.7rem 0 0;
  color: #5C6577;
  font-size: 0.8rem;
}

@media (prefers-reduced-motion: reduce) {
  .req-progress-fill {
    transition: none;
  }
}

/* ---------- v0.7 — scroll-trigger una-tantum: timbro hero, sezione 03 viva ---------- */

.stamp {
  animation: stamp-in 180ms var(--ease-out) 720ms backwards;
}

@keyframes stamp-in {
  from {
    opacity: 0;
    transform: rotate(8deg) scale(1.6);
  }
  to {
    opacity: 0.9;
    transform: rotate(8deg) scale(1);
  }
}

.steps::before {
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 500ms var(--ease-out);
}

.steps.in-view::before {
  transform: scaleY(1);
}

.step-num {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 250ms var(--ease-out), transform 250ms var(--ease-out);
}

.steps.in-view .step-num {
  opacity: 1;
  transform: scale(1);
}

.steps.in-view li:nth-child(1) .step-num { transition-delay: 100ms; }
.steps.in-view li:nth-child(2) .step-num { transition-delay: 180ms; }
.steps.in-view li:nth-child(3) .step-num { transition-delay: 260ms; }
.steps.in-view li:nth-child(4) .step-num { transition-delay: 340ms; }

.req-progress-fill {
  width: 0;
}

.req-ui.in-view .req-progress-fill {
  width: 66%;
}

@media (prefers-reduced-motion: reduce) {
  .stamp {
    animation: none;
  }

  .steps::before,
  .step-num,
  .req-progress-fill {
    transition: none;
    transform: none;
    opacity: 1;
  }

  .req-progress-fill {
    width: 66%;
  }
}

/* ---------- v0.9 — brand assets ---------- */

.brand-lockup {
  height: 30px;
  width: auto;
  display: block;
}

@media (max-width: 770px) {
  .brand-lockup {
    height: 26px;
  }
}

/* ---------- v1.3 — CTA contatto mailto ---------- */

.contact-cta {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 2.25rem;
  text-align: center;
}

.contact-cta-text {
  color: var(--muted);
  max-width: 32rem;
  margin: 0 auto 1.5rem;
}

.contact-cta-mail {
  margin: 1rem 0 0;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* ---------- v1.4 — fallback mailto ---------- */

.btn-copy {
  margin-left: 0.75rem;
  padding: 0.3rem 0.9rem;
  font-size: 0.85rem;
}

.contact-cta .form-status {
  margin-top: 1rem;
  text-align: center;
}