/* ============================================
   PRESUTTO S.R.L. — Stylesheet
   Palette: blu + rosso (brand) su bianco/grigio
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:      #1e3a5f;
  --blue-mid:  #2d6a9f;
  --blue-light:#e8f0f9;
  --red:       #c8222a;
  --red-hover: #a81c23;
  --red-light: #fef2f2;
  --text:      #1a1a1a;
  --text-sec:  #5a6473;
  --bg:        #ffffff;
  --bg-alt:    #f5f7fa;
  --border:    #dde3ea;
  --radius:    8px;
  --shadow:    0 2px 12px rgba(30,58,95,.10);
  --transition:0.22s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

img { max-width: 100%; display: block; }
a   { color: var(--blue-mid); text-decoration: none; }
a:hover { color: var(--blue); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--blue);
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.2rem; font-weight: 600; }
p  { margin-bottom: 1rem; color: var(--text-sec); }
p:last-child { margin-bottom: 0; }

/* ---------- Layout helpers ---------- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
.section--alt {
  background: var(--bg-alt);
}
.section__header {
  text-align: center;
  margin-bottom: 52px;
}
.section__header p {
  max-width: 600px;
  margin: 14px auto 0;
  font-size: 1.05rem;
}
.divider {
  width: 48px;
  height: 3px;
  background: var(--red);
  margin: 14px auto 0;
  border-radius: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn--primary {
  background: var(--red);
  color: #fff;
}
.btn--primary:hover {
  background: var(--red-hover);
  color: #fff;
}
.btn--outline {
  background: transparent;
  color: var(--blue);
  border-color: var(--blue);
}
.btn--outline:hover {
  background: var(--blue);
  color: #fff;
}

/* ---------- HEADER / NAV ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(30,58,95,.07);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav__logo {
  display: flex;
  align-items: center;
}
.nav__logo img {
  height: 36px;
  width: auto;
}
.nav__links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav__links a {
  font-size: .93rem;
  font-weight: 500;
  color: var(--text);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.nav__links a:hover,
.nav__links a.active {
  color: var(--blue);
  border-bottom-color: var(--red);
}
.nav__phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--blue);
  white-space: nowrap;
  text-decoration: none;
}
.nav__phone:hover { color: var(--red); }
.nav__phone-text { display: inline; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- HERO ---------- */
.hero {
  padding: 80px 0 60px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-mid) 100%);
  color: #fff;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero__content { max-width: 540px; }
.hero h1 { color: #fff; margin-bottom: 20px; }
.hero p  { color: rgba(255,255,255,.82); font-size: 1.1rem; margin-bottom: 32px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn--outline { color: #fff; border-color: rgba(255,255,255,.5); }
.hero .btn--outline:hover { background: rgba(255,255,255,.15); color: #fff; }
.hero__image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.hero__image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

/* ---------- STATS BAR ---------- */
.stats {
  background: var(--blue);
  color: #fff;
  padding: 40px 0;
  border-top: 3px solid var(--red);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  text-align: center;
}
.stats__item strong {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.stats__item span {
  font-size: .85rem;
  color: rgba(255,255,255,.7);
  margin-top: 6px;
  display: block;
}

/* ---------- CARDS ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}
.card:hover {
  box-shadow: var(--shadow);
  border-color: var(--red);
  transform: translateY(-2px);
}
.card__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--blue-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.4rem;
}
.card h3 { margin-bottom: 8px; }

/* ---------- PORTFOLIO GRID ---------- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.filter-btn {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: #fff;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-sec);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.portfolio-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.portfolio-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.portfolio-item__img {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-alt);
}
.portfolio-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.portfolio-item:hover .portfolio-item__img img {
  transform: scale(1.05);
}
.portfolio-item__body {
  padding: 18px 20px;
}
.portfolio-item__tag {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--blue-mid);
  margin-bottom: 6px;
}
.portfolio-item h3 { font-size: 1rem; color: var(--text); }
.portfolio-item p  { font-size: .88rem; margin-top: 4px; }

/* ---------- CERT / BADGE ITEMS ---------- */
.cert-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.cert-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}
.cert-item__icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.cert-item h3 { font-size: 1rem; margin-bottom: 4px; }
.cert-item a  { font-size: .85rem; color: var(--blue-mid); }

/* ---------- CLIENT LOGOS ---------- */
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 24px;
}
.client-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  filter: grayscale(100%);
  opacity: .65;
  transition: var(--transition);
}
.client-item:hover {
  filter: grayscale(0%);
  opacity: 1;
  box-shadow: var(--shadow);
}
.client-item img { max-height: 50px; width: auto; }

/* Client card (pagina clienti — logo + nome + descrizione) */
.client-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  text-decoration: none;
  color: var(--text);
  transition: var(--transition);
}
.client-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--red);
}
.client-card__logo {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.client-card__logo img {
  max-height: 64px;
  max-width: 140px;
  width: auto;
  object-fit: contain;
}
.client-card strong {
  font-size: .95rem;
  color: var(--blue);
  text-align: center;
}
.client-card p {
  font-size: .78rem;
  text-align: center;
  margin: 0;
  color: var(--text-sec);
}

/* ---------- CONTACT FORM ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 20px; }
.contact-info__item {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
  align-items: flex-start;
}
.contact-info__item span:first-child {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-info__item strong { display: block; color: var(--text); margin-bottom: 2px; }
.contact-info__item p { margin: 0; font-size: .92rem; }

.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: .95rem;
  color: var(--text);
  background: #fff;
  transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(45,106,159,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--blue);
  color: rgba(255,255,255,.75);
  padding: 56px 0 28px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 44px;
}
.footer__brand .nav__logo { margin-bottom: 14px; }
.footer__brand .nav__logo img { filter: brightness(0) invert(1); }
.footer__brand p { font-size: .88rem; max-width: 280px; }
.footer__col h4 {
  color: #fff;
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 16px;
}
.footer__col ul { list-style: none; }
.footer__col li { margin-bottom: 8px; }
.footer__col a { font-size: .88rem; color: rgba(255,255,255,.65); transition: var(--transition); }
.footer__col a:hover { color: #fff; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 24px;
  font-size: .82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- PAGE HERO (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-mid) 100%);
  color: #fff;
  padding: 56px 0;
}
.page-hero h1 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.4rem); }
.page-hero p  { color: rgba(255,255,255,.78); margin-top: 10px; margin-bottom: 0; }
.breadcrumb {
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  margin-bottom: 10px;
}
.breadcrumb a { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: #fff; }

/* ---------- LIGHTBOX ---------- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,.93);
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }

.lightbox__close {
  position: absolute;
  top: 18px; right: 22px;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
  background: none; border: none;
  line-height: 1;
  opacity: .65;
  transition: opacity .2s;
  z-index: 10;
}
.lightbox__close:hover { opacity: 1; }

.lightbox__main {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 95vw;
}
.lightbox__img-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 85vw;
  max-height: 78vh;
}
.lightbox__img-wrap img {
  max-width: 85vw;
  max-height: 78vh;
  transition: opacity .18s ease;
  object-fit: contain;
  border-radius: 4px;
  display: block;
}
.lightbox__nav {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  transition: background .2s;
  display: flex; align-items: center; justify-content: center;
}
.lightbox__nav:hover { background: rgba(255,255,255,.3); }
.lightbox__nav:disabled { opacity: .2; cursor: default; pointer-events: none; }

.lightbox__footer {
  margin-top: 14px;
  text-align: center;
}
.lightbox__title {
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.lightbox__counter {
  color: rgba(255,255,255,.55);
  font-size: .82rem;
}

/* Gallery hint overlay on portfolio cards */
.portfolio-item[data-images] { cursor: pointer; }
.portfolio-item[data-images] .portfolio-item__img { position: relative; }
.portfolio-item[data-images] .portfolio-item__img::after {
  content: attr(data-count);
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,.6);
  color: #fff;
  font-size: .72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  pointer-events: none;
  transition: opacity .2s;
}
.portfolio-item[data-images]:hover .portfolio-item__img::after {
  background: var(--red);
}

/* ---------- Content grids (used in place of inline styles) ---------- */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.content-grid--sidebar {
  grid-template-columns: 1fr 2fr;
  align-items: start;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .hero__content { max-width: 100%; }
  .content-grid,
  .content-grid--sidebar { grid-template-columns: 1fr; gap: 32px; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .nav__links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-top: 1px solid var(--border); padding: 16px 24px 24px; gap: 4px; box-shadow: 0 8px 20px rgba(0,0,0,.08); }
  .nav__links.open { display: flex; }
  .nav__toggle { display: flex; }
  .nav__phone-text { display: none; }
  .nav__phone { font-size: 1.1rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; }
  .hero { padding: 48px 0 48px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-filters { gap: 6px; }
  .filter-btn { padding: 6px 12px; font-size: .8rem; }
  .lightbox__main { gap: 4px; }
  .lightbox__nav { width: 32px; height: 32px; font-size: 1rem; }
  .lightbox__img-wrap,
  .lightbox__img-wrap img { max-width: 80vw; }
  .section__header { margin-bottom: 36px; }
}