@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600&family=IBM+Plex+Mono:wght@300;400;500&display=swap");

:root {
  --ink: #121212;
  --graphite: #2b2b2b;
  --stone: #6f6f6f;
  --line: #d3d3d3;
  --paper: #f0f0f0;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  min-height: 100vh;
  line-height: 1.7;
}

html {
  scroll-behavior: smooth;
}

section[id] {
  scroll-margin-top: 120px;
}

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

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.8rem 8vw 1.2rem;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(240, 240, 240, 0.92);
  backdrop-filter: blur(10px);
  transition: box-shadow 0.2s ease, padding 0.2s ease;
}

.site-header.is-sticky {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  padding: 1.2rem 8vw 0.9rem;
}
.brand img {
  width: 130px;
  height: auto;
}

.site-nav {
  display: flex;
  gap: 0.9rem;
  font-size: 0.75rem;
  text-transform: none;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.nav-link {
  position: relative;
  padding: 0.2rem 0 0.2rem 0.9rem;
}

.nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
  transform: translateY(-50%) scale(0.4);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  bottom: -0.2rem;
  width: 50%;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-link:hover::before,
.nav-link:focus-visible::before,
.nav-link.is-active::before {
  transform: translateY(-50%) scale(1);
  opacity: 1;
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-link.is-active {
  color: var(--ink);
}

.nav-cta {
  padding: 0.2rem 0 0.2rem 0.9rem;
  border: none;
  color: var(--ink);
  font-weight: 600;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-left: 0.9rem;
  margin-left: 0.4rem;
  border-left: 1px solid var(--line);
}

.lang-button {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--stone);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.lang-button:hover,
.lang-button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--stone);
  color: var(--ink);
}

.lang-button.is-active {
  border-color: var(--ink);
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 4.5rem;
  padding: 4rem 8vw 6rem;
  align-items: center;
}

.hero-copy h1 {
  font-family: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(2.2rem, 3.4vw, 3.4rem);
  line-height: 1.1;
  margin: 1.2rem 0 1.8rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--stone);
}

.lead {
  font-size: 1rem;
  max-width: 34rem;
}

.hero-sublead {
  font-size: 0.95rem;
  max-width: 34rem;
  color: var(--graphite);
  margin-top: 0.9rem;
}

.microcopy {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--stone);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin: 2.4rem 0 1rem;
  flex-wrap: wrap;
}

.button {
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.button.primary {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
}

.button.ghost {
  border: 1px solid var(--ink);
}

.button:hover {
  transform: translateY(-2px);
  border-color: var(--stone);
}

.hero-visual {
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.hero-visual-stack {
  min-height: 540px;
  align-content: center;
  margin-right: -4vw;
}

.hero-image {
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  width: 100%;
  object-fit: cover;
}

.hero-image.primary {
  transform: translateX(8%);
  min-height: 420px;
}

.hero-image.secondary {
  position: absolute;
  width: 68%;
  left: -12%;
  bottom: -14%;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
}

.image-label {
  position: absolute;
  top: 8%;
  right: -6%;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.section-title {
  padding: 0 8vw;
  margin-bottom: 2rem;
}

.section-title h2 {
  font-family: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  margin-top: 0.9rem;
}

.section-lead {
  margin-top: 1rem;
  max-width: 46rem;
  font-size: 0.95rem;
}

.section-body {
  padding: 0 8vw;
  max-width: 48rem;
  font-size: 0.95rem;
  color: var(--graphite);
  margin: -0.4rem 0 2rem;
}

.intro {
  padding: 4rem 0 1rem;
}

.approach,
.ambiti,
.method,
.principle {
  padding: 4rem 0;
}

.approach-grid {
  display: grid;
  gap: 1.4rem;
  padding: 0 8vw;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.tile {
  padding: 1.8rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  min-height: 180px;
}

.ambiti-grid {
  display: grid;
  gap: 1.5rem;
  padding: 0 8vw;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.ambito-card {
  padding: 1.6rem;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.image-band {
  padding: 4rem 8vw 5rem;
}

.image-band-frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  display: grid;
  align-items: stretch;
  margin: 0 -4vw;
  border-radius: 0;
}

.image-band-frame img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  filter: saturate(0.6);
}

.image-band-text {
  position: absolute;
  right: 6%;
  bottom: 12%;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  padding: 1.8rem;
  max-width: 320px;
  border-radius: 10px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
}

.image-band-text h3 {
  font-size: 1.4rem;
  margin: 0.6rem 0 0.8rem;
}

.method-steps {
  display: grid;
  gap: 1.5rem;
  padding: 0 8vw;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.step {
  padding: 1.6rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.step-number {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--stone);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.principle {
  display: grid;
  gap: 2.5rem;
  padding: 4rem 8vw;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.principle-visual img {
  border-radius: 12px;
  border: 1px solid var(--line);
}

.principle-content {
  display: grid;
  gap: 0.9rem;
}

.principle-content .button {
  margin-top: 1.2rem;
  width: fit-content;
}

.cta {
  padding: 4rem 8vw 6rem;
}

.cta-card {
  background: var(--paper);
  color: var(--ink);
  padding: 3rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  display: grid;
  gap: 2.4rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
}

.cta-copy {
  display: grid;
  gap: 1.2rem;
}

.cta-note {
  font-size: 0.9rem;
  color: var(--stone);
}

.contact-form {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

.form-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.contact-form label {
  display: grid;
  gap: 0.5rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.8rem 0.9rem;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--paper);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--ink);
}

.contact-form .full {
  grid-column: 1 / -1;
}

.contact-form .consent {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.85rem;
  color: var(--graphite);
}

.contact-form .consent input {
  margin-top: 0.2rem;
}

.contact-form altcha-widget {
  display: block;
  margin-top: 0.6rem;
}

.hp-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.consent-link {
  text-decoration: underline;
  color: var(--ink);
  margin: 0 0.2rem;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.form-note {
  font-size: 0.85rem;
  color: var(--stone);
}

.form-error {
  font-size: 0.85rem;
  color: #b00020;
  display: none;
}

.form-error.is-visible {
  display: inline;
}

.site-footer {
  padding: 3rem 8vw 3.5rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  border-top: 1px solid var(--line);
  color: var(--stone);
  font-size: 0.85rem;
}

.footer-brand img {
  width: 110px;
  height: auto;
  margin-bottom: 1rem;
}

.footer-brand p {
  max-width: 28rem;
  color: var(--ink);
  font-size: 0.95rem;
}

.footer-meta {
  display: grid;
  gap: 0.6rem;
  justify-items: start;
}

.footer-link {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  color: var(--ink);
}

.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  display: none;
  z-index: 20;
}

.cookie-banner.is-visible {
  display: block;
}

.cookie-banner-content {
  display: grid;
  gap: 1rem;
  color: var(--graphite);
  font-size: 0.9rem;
}

.cookie-banner-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.notfound-page {
  background: radial-gradient(circle at 20% 10%, rgba(18, 18, 18, 0.06), transparent 45%),
    radial-gradient(circle at 80% 20%, rgba(111, 111, 111, 0.12), transparent 55%),
    linear-gradient(120deg, #f5f5f5 0%, #ffffff 60%);
  min-height: 100vh;
}

.notfound {
  padding: 6rem 8vw;
  display: grid;
  place-items: center;
}

.notfound-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 3rem 3.2rem;
  max-width: 640px;
  width: 100%;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(6px);
  display: grid;
  gap: 1.2rem;
}

.notfound-brand {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.notfound-brand img {
  width: 110px;
  height: auto;
}

.notfound-meta {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  color: var(--stone);
}

.notfound-code {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-top: 0.6rem;
}

.notfound-body {
  color: var(--graphite);
  font-size: 1rem;
}

.notfound-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}

.legal {
  padding: 4rem 0 1rem;
}

.thankyou {
  padding: 6rem 8vw;
}

.thankyou-message {
  margin-top: 1rem;
  max-width: 38rem;
  color: var(--graphite);
}

.thankyou-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.6rem;
}

.legal-grid {
  display: grid;
  gap: 1.8rem;
  padding: 0 8vw 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.legal-grid h3 {
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

.to-top {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  z-index: 12;
  display: grid;
  place-items: center;
}

.to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.to-top:hover,
.to-top:focus-visible {
  border-color: var(--stone);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    gap: 1.5rem;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-link::after {
    bottom: -0.2rem;
  }

  .cta-card {
    grid-template-columns: 1fr;
  }

  .to-top {
    right: 1.2rem;
    bottom: 1.2rem;
  }

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

  .hero-image.primary {
    transform: none;
  }

  .hero-visual-stack {
    margin-right: 0;
  }

  .hero-image.secondary {
    position: static;
    width: 100%;
    margin-top: 1rem;
  }

  .image-label {
    position: static;
    margin-top: 1rem;
    width: fit-content;
  }

  .image-band-text {
    position: static;
    margin: -3rem auto 1.5rem;
  }

  .image-band-frame {
    margin: 0;
    border-radius: 12px;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding: 2.2rem 1.5rem 1rem;
  }

  .hero,
  .section-title,
  .section-body,
  .approach-grid,
  .ambiti-grid,
  .method-steps,
  .principle,
  .cta,
  .legal-grid,
  .site-footer {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .image-band {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .cta-card {
    padding: 2.2rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .cookie-banner {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }

  .notfound {
    padding: 4rem 1.5rem;
  }

  .notfound-card {
    padding: 2.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}