/* ==========================================================================
   COOPEDIL — Stylesheet
   Token: sincronizzati con design/tokens.css (fonte di verità)
   ========================================================================== */

/* --------------------------------------------------------------------------
   FONT — self-hosted, subset latin, swap (niente CDN)
   -------------------------------------------------------------------------- */

@font-face {
  font-family: "Squada One";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/squada-one-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Lato";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/lato-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Lato";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/lato-700.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* --------------------------------------------------------------------------
   TOKEN
   -------------------------------------------------------------------------- */

:root {
  --color-green-700: #0B4D26;
  --color-green-800: #083A1D;
  --color-black: #000000;
  --color-gray-900: #212529;
  --color-gray-700: #686C6F;
  --color-gray-500: #808080;
  --color-gray-300: #DEE2E6;
  --color-gray-200: #E9ECEF;
  --color-gray-100: #F8F9FA;
  --color-white: #FFFFFF;

  --color-primary: var(--color-green-700);
  --color-primary-hover: var(--color-green-800);
  --color-on-primary: var(--color-white);
  --color-text: var(--color-gray-900);
  --color-text-muted: var(--color-gray-500);
  --color-heading: var(--color-gray-700);
  --color-bg: var(--color-white);
  --color-bg-alt: var(--color-gray-100);
  --color-bg-band: var(--color-black);
  --color-border: var(--color-gray-300);

  --font-display: "Squada One", Impact, "Arial Narrow Bold", sans-serif;
  --font-body: "Lato", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: clamp(1.25rem, 1.1rem + 0.8vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(2rem, 1.4rem + 2.6vw, 3.25rem);
  --text-hero: clamp(2.25rem, 1.5rem + 4vw, 4.25rem);

  --leading-tight: 1.1;
  --leading-normal: 1.5;
  --leading-loose: 1.65;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --section-padding-y: clamp(var(--space-12), 8vw, var(--space-24));

  --container-max: 1140px;
  --container-narrow: 800px;
  --container-padding-x: clamp(1rem, 4vw, 2rem);

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.12);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --z-header: 100;
}

/* --------------------------------------------------------------------------
   RESET / BASE
   -------------------------------------------------------------------------- */

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
}

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

a { color: var(--color-primary); transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-hover); }

h1, h2, h3, h4 { margin: 0 0 var(--space-4); }

p { margin: 0 0 var(--space-4); }

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 200;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-on-primary);
  text-decoration: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.skip-link:focus { top: 0; color: var(--color-on-primary); }

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

.container--narrow { max-width: var(--container-narrow); }

/* --------------------------------------------------------------------------
   TIPOGRAFIA DISPLAY
   -------------------------------------------------------------------------- */

.display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: var(--leading-tight);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.overline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.overline::before {
  content: "";
  width: 2.5rem;
  height: 3px;
  background: var(--color-primary);
}
.overline--light { color: #9FD8B4; }
.overline--light::before { background: #9FD8B4; }
.overline--center { justify-content: center; }
.overline--center::after {
  content: "";
  width: 2.5rem;
  height: 3px;
  background: currentColor;
}

/* --------------------------------------------------------------------------
   HEADER
   -------------------------------------------------------------------------- */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 76px;
}

.header__logo img { width: 120px; height: 72px; object-fit: contain; }

.nav { display: flex; align-items: center; gap: var(--space-6); }

.nav__list {
  display: flex;
  gap: clamp(var(--space-3), 2vw, var(--space-6));
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__link {
  position: relative;
  display: inline-block;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}
.nav__link:hover { color: var(--color-primary); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--color-primary); }

.header__cta { white-space: nowrap; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 0;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 3px;
  background: var(--color-gray-900);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .header__cta { display: none; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav.is-open { display: block; }
  .nav__list { flex-direction: column; gap: 0; padding: var(--space-2) 0; }
  .nav__link {
    display: block;
    padding: var(--space-3) var(--container-padding-x);
  }
  .nav__link::after { display: none; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* --------------------------------------------------------------------------
   BOTTONI
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn--primary:hover { background: var(--color-primary-hover); color: var(--color-on-primary); }

.btn--ghost {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn--ghost:hover { background: var(--color-white); color: var(--color-gray-900); }

.btn--sm { padding: 0.55rem 1.15rem; font-size: var(--text-sm); }

/* --------------------------------------------------------------------------
   HERO
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(78vh, 640px);
  padding: var(--space-16) 0;
  color: var(--color-white);
  overflow: hidden;
  isolation: isolate;
}

.hero--page { min-height: min(46vh, 380px); padding: var(--space-12) 0; }

.hero__media,
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, rgba(0, 0, 0, 0.82) 15%, rgba(11, 77, 38, 0.72) 100%);
}

.hero__content { max-width: 780px; }

.hero__title {
  margin-bottom: var(--space-4);
  font-size: var(--text-hero);
  color: var(--color-white);
}
.hero--page .hero__title { font-size: var(--text-3xl); }

.hero__lead {
  max-width: 620px;
  margin-bottom: var(--space-8);
  font-size: var(--text-lg);
  line-height: var(--leading-loose);
  color: rgba(255, 255, 255, 0.92);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); }

/* Breadcrumb */
.breadcrumb {
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.breadcrumb li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: rgba(255, 255, 255, 0.5);
}
.breadcrumb a { color: rgba(255, 255, 255, 0.8); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-white); }
.breadcrumb [aria-current] { color: var(--color-white); font-weight: 700; }

/* --------------------------------------------------------------------------
   SEZIONI
   -------------------------------------------------------------------------- */

.section { padding: var(--section-padding-y) 0; }
.section--alt { background: var(--color-bg-alt); }

.section__title {
  font-size: var(--text-3xl);
  color: var(--color-gray-900);
}

.section__head { max-width: 720px; margin-bottom: var(--space-12); }
.section__head--center { margin-inline: auto; text-align: center; }

/* Banda nera — pattern del brand per i titoli di sezione */
.band {
  padding: var(--space-8) 0;
  background: var(--color-bg-band);
  color: var(--color-white);
}
.band__title { margin: 0; font-size: var(--text-2xl); color: var(--color-white); }

/* Prosa (testi verbatim) */
.prose { font-size: var(--text-lg); line-height: var(--leading-loose); }
.prose p { margin-bottom: var(--space-6); }
.prose .signature {
  margin-top: var(--space-8);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  text-transform: uppercase;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   CARD SERVIZI (voci pagine edilizia)
   -------------------------------------------------------------------------- */

.services { display: grid; gap: var(--space-6); }
@media (min-width: 768px) { .services { grid-template-columns: 1fr 1fr; } }

.service {
  position: relative;
  padding: var(--space-8);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.service:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }

.service__num {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
}

.service__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-xl);
  line-height: 1.25;
  text-transform: uppercase;
  color: var(--color-gray-900);
}

.service p { margin-bottom: 0; line-height: var(--leading-loose); }

/* --------------------------------------------------------------------------
   CARD AREE (home → pagine servizio)
   -------------------------------------------------------------------------- */

.area-cards { display: grid; gap: var(--space-6); }
@media (min-width: 768px) { .area-cards { grid-template-columns: 1fr 1fr; } }

.area-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 340px;
  padding: var(--space-8);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  isolation: isolate;
}
.area-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  transition: transform var(--transition-base);
}
.area-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.05) 30%, rgba(0, 0, 0, 0.85) 100%);
  transition: background var(--transition-base);
}
.area-card:hover img { transform: scale(1.05); }

.area-card__body { color: var(--color-white); }
.area-card__title {
  margin-bottom: var(--space-2);
  font-size: var(--text-2xl);
  color: var(--color-white);
}
.area-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9FD8B4;
}
.area-card__cta::after { content: "→"; transition: transform var(--transition-fast); }
.area-card:hover .area-card__cta::after { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   CERTIFICAZIONI
   -------------------------------------------------------------------------- */

.certs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.cert {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.cert:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }

.cert__media {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 210px;
  padding: var(--space-6);
  background: var(--color-gray-100);
  overflow: hidden;
}
.cert__media picture { display: contents; }
.cert__media img { width: 100%; height: 100%; object-fit: contain; }

.cert__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
  padding: var(--space-4);
}

.cert__title { margin: 0; font-size: var(--text-base); font-weight: 700; }

.cert__link {
  margin-top: auto;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
}
.cert__link::after { content: " ↓"; }

/* Lista documenti scaricabili (rapporti di prova) */
.docs {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
@media (min-width: 768px) { .docs { grid-template-columns: repeat(3, 1fr); } }

.doc {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-text);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.doc:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-primary);
  color: var(--color-text);
}

.doc__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 48px;
  height: 60px;
  background: var(--color-green-700);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  clip-path: polygon(0 0, 72% 0, 100% 22%, 100% 100%, 0 100%);
}

.doc__title {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 700;
  line-height: 1.35;
}

.doc__cta {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.doc__cta::after { content: " ↓"; }

/* Card documento senza immagine (es. Politica PdR) */
.cert__media--doc {
  background: var(--color-green-700);
  color: var(--color-white);
}
.cert__media--doc span {
  font-family: var(--font-display);
  font-size: 2.25rem;
  line-height: 1.15;
  text-align: center;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   FINANZIAMENTO UE (Voucher Digitalizzazione)
   -------------------------------------------------------------------------- */

.footer__eu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.65);
}
.footer__eu img { width: 48px; height: 32px; flex: none; }
.footer__eu p { margin: 0; }

/* --------------------------------------------------------------------------
   CLIENTI
   -------------------------------------------------------------------------- */

.clients {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-4);
}

.client {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.client img {
  filter: grayscale(1);
  opacity: 0.75;
  transition: filter var(--transition-base), opacity var(--transition-base);
}
.client:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.client:hover img { filter: none; opacity: 1; }

/* --------------------------------------------------------------------------
   CONTATTI
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; } }

.contact-card {
  padding: var(--space-8);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
}
.contact-card h2, .contact-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-xl);
  text-transform: uppercase;
  color: var(--color-gray-900);
}
.contact-card address { font-style: normal; line-height: var(--leading-loose); }
.contact-card ul { margin: 0; padding: 0; list-style: none; }
.contact-card li { margin-bottom: var(--space-2); }
.contact-card a { font-weight: 700; text-decoration: none; }
.contact-card a:hover { text-decoration: underline; }

.legal-line {
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   CTA BAND
   -------------------------------------------------------------------------- */

.cta-band {
  padding: var(--section-padding-y) 0;
  background:
    linear-gradient(120deg, rgba(0, 0, 0, 0.9) 0%, rgba(11, 77, 38, 0.88) 100%),
    var(--color-black);
  color: var(--color-white);
  text-align: center;
}
.cta-band__title {
  max-width: 720px;
  margin: 0 auto var(--space-4);
  font-size: var(--text-3xl);
  color: var(--color-white);
}
.cta-band p {
  max-width: 560px;
  margin: 0 auto var(--space-8);
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.85);
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */

.footer {
  background: var(--color-gray-900);
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--text-sm);
}

.footer a { color: rgba(255, 255, 255, 0.9); }
.footer a:hover { color: var(--color-white); }

.footer__main {
  display: grid;
  gap: var(--space-8);
  padding: var(--space-16) 0;
}
@media (min-width: 768px) {
  .footer__main { grid-template-columns: 2fr 1fr 1.4fr; }
}

.footer__brand img {
  width: 140px;
  margin-bottom: var(--space-4);
  background: var(--color-white);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.footer h2 {
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--text-base);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
}

.footer ul { margin: 0; padding: 0; list-style: none; }
.footer li { margin-bottom: var(--space-2); }
.footer address { font-style: normal; line-height: var(--leading-loose); }

.footer__bottom p { margin: 0; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.55);
}

/* --------------------------------------------------------------------------
   REVEAL (animazioni scroll, disattivate con reduced motion)
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 600ms ease, transform 600ms ease;
  }
  .reveal.is-visible { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* --------------------------------------------------------------------------
   TOCCHI DI STILE — motion & micro-interazioni (solo CSS, CWV-safe)
   -------------------------------------------------------------------------- */

::selection { background: var(--color-green-700); color: var(--color-white); }

/* Header: ombra quando si scrolla (classe da main.js) */
.header { transition: box-shadow var(--transition-base); }
.header.is-scrolled { box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1); }

/* Hero: taglio diagonale in basso */
.hero { clip-path: polygon(0 0, 100% 0, 100% calc(100% - 3vw), 0 100%); }

/* Hero: parola evidenziata con marker verde */
.u-marker { box-shadow: inset 0 -0.22em 0 var(--color-green-700); }

@media (prefers-reduced-motion: no-preference) {

  /* Ken Burns lento sull'immagine hero */
  .hero__media img { animation: kenburns 16s ease-out both; }
  @keyframes kenburns {
    from { transform: scale(1.1); }
    to { transform: scale(1); }
  }

  /* Ingresso scaglionato dei contenuti hero */
  .hero__content > * { animation: rise 700ms cubic-bezier(0.2, 0.7, 0.3, 1) both; }
  .hero__content > *:nth-child(2) { animation-delay: 120ms; }
  .hero__content > *:nth-child(3) { animation-delay: 240ms; }
  .hero__content > *:nth-child(4) { animation-delay: 360ms; }
  @keyframes rise {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: none; }
  }

  /* Stagger nelle griglie (ritardo progressivo sulle colonne) */
  .services .reveal:nth-child(2n) { transition-delay: 120ms; }
  .certs .reveal:nth-child(3n+2),
  .clients .reveal:nth-child(4n+2) { transition-delay: 100ms; }
  .certs .reveal:nth-child(3n),
  .clients .reveal:nth-child(4n+3) { transition-delay: 200ms; }
  .clients .reveal:nth-child(4n) { transition-delay: 300ms; }
  .area-cards .reveal:nth-child(2) { transition-delay: 150ms; }
}

/* Card servizi: numero watermark in Squada One */
.service { overflow: hidden; }
.service__num {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  margin: 0;
  font-size: 4.75rem;
  letter-spacing: 0;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-gray-300);
  pointer-events: none;
  transition: -webkit-text-stroke-color var(--transition-base), opacity var(--transition-base);
}
.service:hover .service__num { -webkit-text-stroke-color: var(--color-green-700); }
.service__title { position: relative; max-width: calc(100% - 3.5rem); }

/* CTA band: texture diagonale da cantiere */
.cta-band { position: relative; overflow: hidden; }
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.045) 0 14px, transparent 14px 30px);
  pointer-events: none;
}
.cta-band > .container { position: relative; }

/* Bottoni: sheen al passaggio */
.btn { position: relative; overflow: hidden; }
.btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  width: 60%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transform: skewX(-20deg);
  transition: left 450ms ease;
  pointer-events: none;
}
.btn:hover::after { left: 120%; }

/* Link footer e prose: sottolineatura animata */
.footer ul a,
.prose a {
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size var(--transition-base);
}
.footer ul a:hover,
.prose a:hover { background-size: 100% 1px; }

/* Footer: filo verde in testa */
.footer { border-top: 4px solid var(--color-primary); }

/* Titoli sezione: barra verde sotto */
.section__title {
  position: relative;
  padding-bottom: var(--space-4);
}
.section__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 4.5rem;
  height: 4px;
  background: var(--color-primary);
}

/* --------------------------------------------------------------------------
   UTILITY
   -------------------------------------------------------------------------- */

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