/* ===================================================================
   Ingegneria Livi — stylesheet
   =================================================================== */

:root {
  --color-teal: #2E849D;
  --color-teal-dark: #1F5F70;
  --color-teal-light: #E7F1F4;
  --color-ink: #1A1A1A;
  --color-ink-soft: #52514D;
  --color-paper: #FFFFFF;
  --color-bg-soft: #F6F4F0;
  --color-border: #E4E1DA;

  --badge-sismico: #C0722A;
  --badge-sismico-bg: #FBEDDF;
  --badge-nuova: #35618C;
  --badge-nuova-bg: #E7EEF5;
  --badge-esistente: #4B7A4F;
  --badge-esistente-bg: #EAF2E9;
  --badge-pubblica: #74519A;
  --badge-pubblica-bg: #F0E9F6;

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --max-width: 1160px;
  --radius: 10px;
  --shadow-soft: 0 8px 30px rgba(26, 26, 26, 0.06);
  --shadow-card: 0 4px 18px rgba(26, 26, 26, 0.08);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color-teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--color-ink);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal-dark);
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-teal);
  display: inline-block;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head p {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

section { padding: 96px 0; }
section.bg-soft { background: var(--color-bg-soft); }

@media (max-width: 640px) {
  section { padding: 64px 0; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease;
  text-decoration: none !important;
}

.btn-primary {
  background: var(--color-teal);
  color: #fff;
}
.btn-primary:hover { background: var(--color-teal-dark); }

.btn-outline {
  background: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}
.btn-outline:hover { background: var(--color-ink); color: #fff; }

.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,0.55);
  color: #fff;
}
.btn-outline-light:hover { background: rgba(255,255,255,0.15); }

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 46px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-block;
  color: var(--color-ink);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 16px;
  border-radius: 999px;
  transition: all 0.18s ease;
}
.nav-links a:hover {
  background: var(--color-teal-dark);
  color: #fff;
  text-decoration: none;
}

.nav-cta { display: none; }
@media (min-width: 900px) {
  .nav-cta { display: inline-flex; }
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 899px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 0 20px;
  border-top: 1px solid var(--color-border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 10px;
  border-radius: 8px;
  color: var(--color-ink);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
  transition: all 0.18s ease;
}
.mobile-menu a:hover {
  background: var(--color-teal-dark);
  color: #fff;
}
.mobile-menu .btn { margin-top: 12px; justify-content: center; }

/* ---------- Hero ---------- */

.hero {
  padding: 72px 0 96px;
  background:
    radial-gradient(1200px 500px at 85% -10%, var(--color-teal-light) 0%, rgba(231,241,244,0) 60%),
    var(--color-paper);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .hero-photo { order: -1; max-width: 320px; margin: 0 0 16px; }
}

.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  max-width: 54ch;
  margin-bottom: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-photo {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  aspect-ratio: 4/5;
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }

/* Credential badges */

.credentials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 920px;
  margin: 56px auto 0;
}

@media (max-width: 640px) {
  .credentials { grid-template-columns: 1fr; }
}

.credential-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.credential-card .icon {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: var(--color-teal-light);
  color: var(--color-teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}
.credential-card .icon svg { width: 20px; height: 20px; }

.credential-card strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.credential-card span {
  display: block;
  font-size: 0.86rem;
  color: var(--color-ink-soft);
}

/* ---------- Servizi ---------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }

.service-card {
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.service-card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--color-teal-light);
  color: var(--color-teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.service-card .icon svg { width: 24px; height: 24px; }

.service-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.service-card p { color: var(--color-ink-soft); font-size: 0.95rem; margin: 0; }

.service-card ul {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

.services-footnote {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 800px) { .services-footnote { grid-template-columns: 1fr; } }

.services-footnote p { color: var(--color-ink-soft); }

.materials-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.material-pill {
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink);
}

/* ---------- Interventi ---------- */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
@media (max-width: 800px) { .projects-grid { grid-template-columns: 1fr; } }

.project-card {
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.project-photos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  background: var(--color-ink);
}
.project-photos.count-2 { grid-template-columns: repeat(2, 1fr); }

.project-photos button {
  border: 0;
  padding: 0;
  margin: 0;
  cursor: zoom-in;
  background: none;
  display: block;
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}
.project-photos img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.project-photos button:hover img { transform: scale(1.05); }

.project-body { padding: 24px 24px 26px; }

.badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.badge-sismico { background: var(--badge-sismico-bg); color: var(--badge-sismico); }
.badge-nuova { background: var(--badge-nuova-bg); color: var(--badge-nuova); }
.badge-esistente { background: var(--badge-esistente-bg); color: var(--badge-esistente); }
.badge-pubblica { background: var(--badge-pubblica-bg); color: var(--badge-pubblica); }

.project-body h3 { font-size: 1.18rem; margin-bottom: 4px; }

.project-meta {
  font-size: 0.88rem;
  color: var(--color-teal-dark);
  font-weight: 600;
  margin-bottom: 12px;
}

.project-body p { color: var(--color-ink-soft); font-size: 0.95rem; margin: 0; }

/* Lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15,15,15,0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 32px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 100%;
  max-height: 86vh;
  border-radius: 6px;
}
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.12);
  border: none;
  color: #fff;
  cursor: pointer;
  border-radius: 999px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,0.25); }
.lightbox-close { top: 20px; right: 20px; }
.lightbox-prev { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 20px; top: 50%; transform: translateY(-50%); }
.lightbox-close svg, .lightbox-prev svg, .lightbox-next svg { width: 20px; height: 20px; }

/* ---------- Chi sono ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 320px; }
}

.about-photo {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  aspect-ratio: 4/5;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }

.about-text p { color: var(--color-ink-soft); }

.timeline {
  margin-top: 28px;
  border-left: 2px solid var(--color-border);
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.timeline-item { position: relative; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--color-teal);
}
.timeline-item strong { display: block; font-size: 0.95rem; }
.timeline-item span { color: var(--color-ink-soft); font-size: 0.9rem; }

/* ---------- Collaborazioni ---------- */

.collab-box {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 32px;
  max-width: 560px;
}
.collab-box img { height: 72px; width: auto; }
.collab-box .name { font-weight: 700; font-size: 1.05rem; }
.collab-box .role { color: var(--color-ink-soft); font-size: 0.9rem; }

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

.cta {
  background: linear-gradient(135deg, var(--color-teal-dark), var(--color-teal));
  color: #fff;
  border-radius: 20px;
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  align-items: center;
  gap: 32px;
}
@media (max-width: 800px) {
  .cta { grid-template-columns: 1fr; padding: 40px 28px; text-align: left; }
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,0.88); font-size: 1.02rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Contatti ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 18px; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; }
.contact-list .icon {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-teal-light);
  color: var(--color-teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-list .icon svg { width: 20px; height: 20px; }
.contact-list strong { display: block; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-ink-soft); margin-bottom: 2px; }
.contact-list a, .contact-list span.value { font-size: 1.02rem; color: var(--color-ink); font-weight: 500; }

.map-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  min-height: 320px;
}
.map-frame iframe { width: 100%; height: 100%; min-height: 320px; border: 0; display: block; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 36px 0;
  background: var(--color-bg-soft);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { height: 38px; width: auto; }

.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--color-ink-soft); }
.footer-links button {
  background: none; border: none; padding: 0; cursor: pointer;
  color: var(--color-ink-soft); font-size: inherit; font-family: inherit;
  text-decoration: underline; text-underline-offset: 2px;
}

/* ---------- Cookie banner ---------- */

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  background: var(--color-paper);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -8px 30px rgba(0,0,0,0.08);
  padding: 22px 24px;
  display: none;
}
.cookie-banner.visible { display: block; }
.cookie-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cookie-inner p { margin: 0; font-size: 0.92rem; color: var(--color-ink-soft); max-width: 640px; }
.cookie-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cookie-actions .btn { padding: 10px 20px; font-size: 0.9rem; }

/* ---------- Legal pages ---------- */

.legal-page { padding: 64px 0 96px; }
.legal-page h1 { margin-bottom: 8px; }
.legal-page .updated { color: var(--color-ink-soft); font-size: 0.9rem; margin-bottom: 40px; }
.legal-page h2 { font-size: 1.3rem; margin-top: 40px; }
.legal-page p, .legal-page li { color: var(--color-ink-soft); }
.legal-page a { color: var(--color-teal-dark); }
.back-link { display: inline-block; margin-bottom: 28px; font-weight: 600; }