/* ═══════════════════════════════════════════════
   DESIGN TOKENS
════════════════════════════════════════════════ */
:root {
  --navy:      #0d2246;
  --navy-mid:  #163070;
  --red:       #cc2020;
  --red-light: #e53535;
  --white:     #ffffff;
  --off-white: #f5f4f0;
  --gray:      #e8e7e2;
  --text:      #1a1a1a;
  --text-muted:#6b6b6b;
  --radius:    4px;
  --transition:0.28s ease;
  --shadow:    0 4px 24px rgba(13,34,70,0.12);
  --font-display:'Barlow Condensed', sans-serif;
  --font-body:   'Lato', sans-serif;
}

/* ═══════════════════════════════════════════════
   RESET & BASE
════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--text); background: var(--white); overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ═══════════════════════════════════════════════
   UTILITIES
════════════════════════════════════════════════ */
.container { width: 90%; max-width: 1200px; margin: 0 auto; }

.section-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.1;
  color: var(--navy);
  margin-bottom: 1.1rem;
}
.section-title span { color: var(--red); }
.section-desc {
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.9rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(204,32,32,0.3); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.55); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-outline-navy { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline-navy:hover { background: var(--navy); color: var(--white); }

/* Fade-in */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ═══════════════════════════════════════════════
   NAVBAR
════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 1.1rem 0;
}
#navbar.scrolled { background: var(--navy); box-shadow: 0 2px 20px rgba(0,0,0,0.25); padding: 0.7rem 0; }
#navbar.solid { background: var(--navy); padding: 0.7rem 0; }

.nav-inner { display: flex; align-items: center; justify-content: space-between; }

.nav-logo { display: flex; align-items: center; gap: 0.7rem; }
.nav-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}
.nav-logo-text { font-family: var(--font-display); font-size: 1.35rem; font-weight: 800; color: var(--white); letter-spacing: 0.06em; line-height: 1.1; }
.nav-logo-text small { display: block; font-size: 0.52rem; font-weight: 400; letter-spacing: 0.18em; opacity: 0.7; }

.nav-links { display: flex; align-items: center; gap: 2.2rem; }
.nav-links a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.82);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:var(--red); transition:width var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-hamburger { display: none; flex-direction: column; gap: 6px; cursor: pointer; padding: 4px; background: none; border: none; }
.nav-hamburger span { display: block; width: 24px; height: 2px; background: var(--white); transition: transform 0.3s ease, opacity 0.3s ease; }
/* Hamburger → X animation */
.nav-hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed; top:0; left:0; right:0; bottom:0;
  background: var(--navy);
  z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; }
.mobile-menu a.active { color: #ff9090; }

/* ═══════════════════════════════════════════════
   PAGE HERO (inner pages)
════════════════════════════════════════════════ */
.page-hero {
  background: var(--navy);
  padding: 7rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 80px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 80px);
}
.page-hero-bar { position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--red); }
.page-hero-content { position: relative; z-index: 2; }
.page-hero-label { font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 0.22em; text-transform: uppercase; color: rgba(255,140,140,0.85); font-weight: 600; margin-bottom: 0.6rem; }
.page-hero-title { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; color: var(--white); line-height: 1.05; }
.page-hero-title span { color: var(--red); }
.page-hero-sub { font-size: 1rem; color: rgba(255,255,255,0.6); margin-top: 0.9rem; max-width: 580px; line-height: 1.7; }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.breadcrumb a, .breadcrumb span {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}
.breadcrumb a:hover { color: rgba(255,255,255,0.75); }
.breadcrumb-sep { color: rgba(255,255,255,0.25); font-size: 0.7rem; }
.breadcrumb span:last-child { color: rgba(255,255,255,0.75); }

/* ═══════════════════════════════════════════════
   SPONSOR STRIP
   Per MOSTRARE gli sponsor: cambia display:none → display:block
   Per NASCONDERLI di nuovo: rimetti display:none
════════════════════════════════════════════════ */
#sponsor-strip {
  display: none; /* ← cambia in "block" per mostrare */
  background: var(--off-white);
  border-top: 1px solid var(--gray);
  border-bottom: 1px solid var(--gray);
  padding: 2rem 0;
}
.sponsor-inner {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.sponsor-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.sponsor-divider {
  width: 1px;
  height: 32px;
  background: var(--gray);
  flex-shrink: 0;
}
.sponsor-logos {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
/* Ogni sponsor è un <a> con dentro un <img> oppure solo testo */
.sponsor-item {
  display: flex;
  align-items: center;
  opacity: 0.55;
  transition: opacity var(--transition), transform var(--transition);
  text-decoration: none;
}
.sponsor-item:hover {
  opacity: 1;
  transform: translateY(-2px);
}
/* Logo immagine sponsor */
.sponsor-item img {
  height: 36px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter var(--transition);
}
.sponsor-item:hover img {
  filter: grayscale(0%);
}
/* Sponsor senza logo — solo nome testuale */
.sponsor-item-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy);
}

@media(max-width:600px) {
  .sponsor-divider { display: none; }
  .sponsor-inner { justify-content: center; }
  .sponsor-label { width: 100%; text-align: center; }
  .sponsor-logos { justify-content: center; }
}
footer { background: #080f1e; padding: 2rem 0; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-left { font-size: 0.8rem; color: rgba(255,255,255,0.3); line-height: 1.7; }
.footer-left strong { color: rgba(255,255,255,0.5); }
.footer-left a { color: rgba(255,255,255,0.3); }
.footer-left a:hover { color: rgba(255,255,255,0.6); }
.footer-right { font-size: 0.76rem; color: rgba(255,255,255,0.2); text-align: right; }

/* ═══════════════════════════════════════════════
   SCROLL TO TOP
════════════════════════════════════════════════ */
#scrollTop {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: var(--red); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; opacity: 0; transform: translateY(10px);
  transition: var(--transition); z-index: 100; border: none;
}
#scrollTop.visible { opacity: 1; transform: translateY(0); }
#scrollTop:hover { background: var(--red-light); }
#scrollTop svg { width: 17px; height: 17px; stroke: white; fill: none; stroke-width: 2.5; }

/* ═══════════════════════════════════════════════
   SERVICE CARDS (shared)
════════════════════════════════════════════════ */
.service-card {
  background: var(--white);
  border-radius: 8px;
  padding: 1.8rem;
  border: 1px solid var(--gray);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative; overflow: hidden;
  text-align: center;
}
.service-card::before {
  content: ''; position: absolute; top:0; left:0; right:0; height:3px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 50px; height: 50px; background: rgba(204,32,32,0.07); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin: 0 auto 1.1rem; font-size: 1.5rem; }
.service-name { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: 0.55rem; }
.service-desc { font-size: 0.9rem; line-height: 1.65; color: var(--text-muted); }
.service-tag {
  display: inline-block; margin-top: 1rem;
  font-size: 0.72rem; font-family: var(--font-display); letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--navy-mid); font-weight: 700;
  background: rgba(22,48,112,0.07); padding: 0.28rem 0.65rem; border-radius: 3px;
}

/* ═══════════════════════════════════════════════
   CERTIFICATIONS BLOCK (chi-siamo)
════════════════════════════════════════════════ */
.cert-block { background: var(--off-white); border-radius: 10px; padding: 2rem; border: 1px solid var(--gray); }
.cert-block-title { font-family: var(--font-display); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--red); font-weight: 700; margin-bottom: 1.2rem; }
.cert-list { display: flex; flex-direction: column; }
.cert-item { display: flex; align-items: flex-start; gap: 0.9rem; padding: 0.9rem 0; border-bottom: 1px solid var(--gray); }
.cert-item:first-child { padding-top: 0; }
.cert-item:last-child { border-bottom: none; padding-bottom: 0; }
.cert-badge { font-family: var(--font-display); font-size: 0.63rem; font-weight: 800; letter-spacing: 0.04em; background: var(--navy); color: var(--white); padding: 0.25rem 0.5rem; border-radius: 3px; white-space: nowrap; flex-shrink: 0; margin-top: 2px; }
.cert-item-text strong { display: block; font-family: var(--font-display); font-size: 0.93rem; font-weight: 700; color: var(--navy); margin-bottom: 0.15rem; }
.cert-item-text span { font-size: 0.81rem; color: var(--text-muted); line-height: 1.45; }

/* ═══════════════════════════════════════════════
   PROJECT CARDS (shared)
════════════════════════════════════════════════ */
.project-card { border-radius: 8px; overflow: hidden; background: var(--white); box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: transform var(--transition), box-shadow var(--transition); cursor: pointer; }
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.project-img { width: 100%; aspect-ratio: 16/10; background: var(--navy); position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.project-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-card:hover .project-img img { transform: scale(1.06); }
.project-img-placeholder { font-family: var(--font-display); font-size: 0.85rem; color: rgba(255,255,255,0.22); text-transform: uppercase; letter-spacing: 0.1em; }
.project-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(13,34,70,0.82) 0%, transparent 60%); opacity: 0; transition: opacity var(--transition); display: flex; align-items: flex-end; padding: 1.2rem; }
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay-tag { font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--white); background: var(--red); padding: 0.28rem 0.7rem; border-radius: 100px; }
.project-body { padding: 1.1rem 1.4rem 1.4rem; }
.project-cat { font-family: var(--font-display); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--red); margin-bottom: 0.3rem; }
.project-title { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.3rem; }
.project-location { font-size: 0.83rem; color: var(--text-muted); }

/* Filter tabs */
.filter-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 2rem; }
.filter-tab { font-family: var(--font-display); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.45rem 1.1rem; border-radius: 100px; border: 1.5px solid var(--gray); background: var(--white); color: var(--text-muted); cursor: pointer; transition: var(--transition); }
.filter-tab:hover, .filter-tab.active { background: var(--navy); border-color: var(--navy); color: var(--white); }

/* ═══════════════════════════════════════════════
   CONTACT FORM
════════════════════════════════════════════════ */
.contact-form { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 2.5rem; backdrop-filter: blur(8px); }
.contact-form h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--white); margin-bottom: 1.4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-group label { font-family: var(--font-display); font-size: 0.73rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.5); font-weight: 600; }
.form-group input, .form-group select, .form-group textarea { width: 100%; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius); padding: 0.82rem 1rem; color: var(--white); font-family: var(--font-body); font-size: 0.93rem; transition: border-color var(--transition), background var(--transition); outline: none; }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.22); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--red); background: rgba(255,255,255,0.1); }
.form-group select option { background: var(--navy); color: var(--white); }
.form-group textarea { resize: vertical; min-height: 115px; }
.form-note { font-size: 0.76rem; color: rgba(255,255,255,0.28); margin-top: 0.75rem; line-height: 1.5; }
.form-success { display: none; text-align: center; padding: 2rem; color: var(--white); }
.form-success .success-icon { font-size: 2.8rem; margin-bottom: 0.8rem; }
.form-success p { color: rgba(255,255,255,0.65); margin-top: 0.4rem; }

/* ═══════════════════════════════════════════════
   SHARED JS SNIPPET (common behaviors)
════════════════════════════════════════════════ */
/* (navbar scroll, mobile menu, fade-up, scrollTop — inline per page) */

/* ═══════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-hero { padding: 6rem 0 3rem; }
}