/* ==========================================================================
   INFINITE DI SELENE CROCINI — foglio di stile
   ========================================================================== */

:root {
  --navy: #0f2340;
  --navy-700: #1b3358;
  --ink: #1d2433;
  --muted: #5b6475;
  --line: #e3e6eb;
  --bg: #ffffff;
  --bg-soft: #f4f5f7;
  --accent: #a8864f;
  --accent-soft: #f3ede2;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(15, 35, 64, .05), 0 8px 24px rgba(15, 35, 64, .06);
  --container: 1120px;
  --header-h: 72px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 .6em;
  font-weight: 600;
}

h1 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -.01em; }
h2 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.7rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.125rem; }

p { margin: 0 0 1em; }

a { color: var(--navy-700); }
a:hover { color: var(--accent); }

address { font-style: normal; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .9rem;
}

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

.btn {
  display: inline-block;
  padding: .85rem 1.5rem;
  border-radius: 6px;
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn-sm { padding: .55rem 1.1rem; font-size: .9rem; }

.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-700); color: #fff; }

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

.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 2px 12px rgba(15, 35, 64, .05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.1;
}
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  letter-spacing: .18em;
  color: var(--navy);
}
.brand-sub {
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--muted);
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.site-nav ul {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav ul a {
  text-decoration: none;
  color: var(--ink);
  font-size: .95rem;
  font-weight: 500;
}
.site-nav ul a:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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

.hero {
  background:
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  padding-top: clamp(4rem, 10vw, 7.5rem);
  padding-bottom: clamp(4rem, 10vw, 7.5rem);
}
.hero-inner > * { max-width: 780px; }
.hero h1 { margin-bottom: .5em; }
.hero h1::after {
  content: "";
  display: block;
  width: 56px;
  height: 2px;
  margin-top: .45em;
  background: var(--accent);
}
.lead {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  color: var(--navy-700);
  margin-bottom: 1rem;
}
.hero-text {
  color: var(--muted);
  max-width: 640px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2rem;
}

/* ---------- Sections ---------- */

.section { padding: clamp(4rem, 8vw, 6rem) 0; }
.section-alt { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { margin-bottom: 2.5rem; }
.section-head h2 { margin-bottom: 0; }

/* ---------- Services ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.card:hover {
  border-color: #cfd5de;
  box-shadow: var(--shadow);
}
.card-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: .95rem;
  color: var(--accent);
  padding-bottom: .6rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--accent-soft);
}
.card p {
  color: var(--muted);
  font-size: .98rem;
  margin: 0;
}

/* ---------- About ---------- */

.about {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: start;
}
.about .section-head { margin-bottom: 0; }
.about-body p { color: var(--ink); }
.about-body p:last-child { margin-bottom: 0; color: var(--muted); }

/* ---------- Contacts ---------- */

.contact-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  max-width: 820px;
}
.contact-name {
  display: inline-block;
  color: var(--navy);
  font-size: 1.05rem;
  margin-bottom: .35rem;
  letter-spacing: .02em;
}
.contact-address { line-height: 1.75; }
.contact-list { margin: 0; }
.contact-list div + div { margin-top: 1rem; }
.contact-list dt {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-list dd { margin: .15rem 0 0; }

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

.site-footer {
  background: var(--navy);
  color: #c9d1de;
  font-size: .9rem;
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.site-footer p { margin: 0 0 .25rem; }
.footer-brand { color: #fff; font-weight: 600; }
.site-footer a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.site-footer a:hover { color: var(--accent-soft); }

/* ---------- Legal page ---------- */

.legal { padding: clamp(3rem, 7vw, 5rem) 0; }
.legal-inner { max-width: 780px; }
.legal h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); }
.legal h2 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.2rem;
  margin-top: 2.25rem;
}
.legal h3 { font-size: 1rem; margin-top: 1.25rem; }
.legal p, .legal li { color: var(--ink); }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: .5rem; }
.legal address {
  background: var(--bg-soft);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  line-height: 1.75;
}
.legal-updated { color: var(--muted); font-size: .92rem; }
.legal-back { margin-top: 3rem; }

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .5rem 24px 1.5rem;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(15, 35, 64, .06);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a {
    display: block;
    padding: .9rem 0;
    border-bottom: 1px solid var(--line);
  }
  .nav-cta { margin-top: 1.25rem; text-align: center; }

  .about { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact-card { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (max-width: 560px) {
  body { font-size: 1rem; }
  .container { padding: 0 16px; }
  .site-nav { padding-left: 16px; padding-right: 16px; }
  .cards { grid-template-columns: 1fr; }
  .contact-card { padding: 1.5rem 1.25rem; }
  .hero-actions .btn { flex: 1 1 100%; text-align: center; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}