@font-face {
  font-family: "Open Sans";
  src: url("fonts/open-sans-light.ttf") format("truetype");
  font-style: normal;
  font-weight: 300;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("fonts/open-sans-regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Open Sans";
  src: url("fonts/open-sans-semibold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

:root {
  --bg: #455a64;
  --surface: #37474F;
  --surface-muted: #263238;
  --surface-soft: #607d8b;
  --ink: #ffffff;
  --text: #f1f6f8;
  --muted: #e0e8eb;
  --line: rgba(241, 246, 248, 0.26);
  --accent: #b2dfdb;
  --accent-dark: #80cbc4;
  --accent-soft: rgba(178, 223, 219, 0.18);
  --warning: #ffcc80;
  --shadow: 0 22px 60px rgba(38, 50, 56, 0.24);
  --radius: 6px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Open Sans", "Helvetica Neue", Arial, Helvetica, sans-serif;
  font-weight: 300;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
h1,
h2,
h3 {
  margin: 0;
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.section {
  padding: 104px 0;
}

.muted {
  background: var(--surface-muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px max(20px, calc((100vw - var(--container)) / 2));
  background: rgba(69, 90, 100, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: 0;
}

.brand-logo {
  display: block;
  width: clamp(112px, 42vw, 210px);
  max-width: 100%;
  height: auto;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--bg);
}

.language-switch {
  color: #428BCA;
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
}

.language-switch a {
  color: #428BCA;
  transition: color 160ms ease;
}

.language-switch a:hover,
.language-switch a:focus-visible {
  color: var(--warning);
  outline: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: 6px;
}

.site-nav a:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.site-nav .nav-cta {
  margin-left: 8px;
  background: var(--ink);
  color: var(--bg);
}

.site-nav .nav-cta:hover {
  background: var(--accent);
  color: #263238;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

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

.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(69, 90, 100, 0.94) 0%, rgba(69, 90, 100, 0.84) 46%, rgba(69, 90, 100, 0.6) 100%),
    url("images/hero-background.jpg");
  background-position: center;
  background-size: cover;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  gap: 56px;
  align-items: center;
}

.hero-copy {
  max-width: 760px;
}

.hero-copy h2 {
  font-weight: 600;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 300;
}

h1 {
  max-width: 850px;
  font-size: clamp(2.55rem, 5.2vw, 5.2rem);
}

h2 {
  font-size: clamp(2rem, 3.5vw, 3.35rem);
}

h3 {
  font-size: 1.15rem;
}

.hero-text {
  max-width: 680px;
  margin-top: 24px;
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text);
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
  align-items: center;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: "Open Sans", "Helvetica Neue", Arial, Helvetica, sans-serif;
  font-weight: 600;
  line-height: 1.2;
}

.button.primary {
  background: var(--ink);
  color: #263238;
}

.button.primary:hover {
  background: var(--accent);
}

.button.secondary {
  border-color: var(--line);
  background: transparent;
  color: var(--ink);
}

.button.secondary:hover {
  border-color: var(--accent);
}

.button.light {
  background: var(--ink);
  color: #263238;
}

.hero-panel,
.method-grid article,
.feature-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.hero-panel {
  padding: 22px;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-size: 0.92rem;
}

.panel-header strong {
  color: var(--warning);
  font-weight: 600;
}

.signal-list {
  display: grid;
  gap: 18px;
  padding: 20px 0 0;
  margin: 0;
  list-style: none;
}

.signal-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
}

.signal-list li > span {
  color: var(--accent);
  font-weight: 600;
}

.signal-list p {
  margin-top: 4px;
  color: var(--text);
  font-size: 0.95rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.align-start {
  align-items: start;
}

.text-stack {
  display: grid;
  gap: 18px;
  font-size: 1.05rem;
}

.section-note {
  margin-top: 18px;
  font-size: 1.05rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-heading p:last-child {
  margin-top: 16px;
  font-size: 1.05rem;
}

.section-heading.compact {
  max-width: 680px;
}

.method-grid,
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.method-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.method-grid article,
.feature-grid article {
  padding: 24px;
}

.step {
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 28px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.method-grid p,
.feature-grid p,
.benefit-list p {
  margin-top: 10px;
}

.output {
  display: block;
  margin-top: 18px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.45;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.benefit-list {
  display: grid;
  gap: 24px;
}

.benefit-list > div {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.benefit-list > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.check-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 15px 16px 15px 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 21px;
  left: 18px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}

.check-list.negative li::before {
  content: "\00d7";
  top: 17px;
  width: 18px;
  height: 18px;
  background: transparent;
  color: var(--warning);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 18px;
  text-align: center;
}

#non-facciamo .eyebrow {
  color: var(--warning);
}

.cta-section {
  padding: 88px 0;
  background: #263238;
  color: var(--text);
}

.cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.45fr);
  gap: 54px;
  align-items: center;
}

.cta .eyebrow,
.cta h2 {
  color: #80B2FF;
}

.cta p {
  margin-top: 16px;
}

.cta-actions {
  margin-top: 0;
  align-content: start;
}

.cta-actions p {
  max-width: 360px;
  margin-top: 0;
  font-size: 0.95rem;
}

.site-footer {
  padding: 28px 0;
  background: #263238;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  font-size: 0.92rem;
}

@media (max-width: 920px) {
  .ai-language-switch {
    margin-left: auto;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 72px 16px auto 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  body.nav-open .site-nav {
    display: flex;
  }

  .site-nav .nav-cta {
    margin-left: 0;
    text-align: center;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .split,
  .cta {
    grid-template-columns: 1fr;
  }

  .hero-grid,
  .split,
  .cta {
    gap: 38px;
  }

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

  .method-grid.three {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .section {
    padding: 68px 0;
  }

  .site-header {
    padding-inline: 14px;
  }

  h1 {
    font-size: 2.45rem;
  }

  h2 {
    font-size: 2rem;
  }

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

  .hero-panel {
    padding: 18px;
  }

  .method-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .cta-actions {
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
  }
}