/* dottcarlovalli-b2b — assets/main.css (CLEAN) — 2026-02-21
   NOTE: questo file contiene SOLO base globale (layout + header/footer + utilities).
   Gli stili specifici B2B sono in assets/b2b-components.css e assets/b2b-pages.css
*/

:root {
  --bg: #cfe9f9;
  --card: #ffffff;
  --text: #0b1020;
  --muted: #4a5a73;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --shadow: 0 10px 30px rgba(0,0,0,.15);
  --radius: 18px;
  --border: 1px solid rgba(0,0,0,.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color: var(--text);
  background: var(--bg);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

:focus-visible {
  outline: 3px solid var(--accent-strong);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* HEADER */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(140%) blur(8px);
  background: rgba(255,255,255,.85);
  border-bottom: 1px solid rgba(0,0,0,.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.brand img {
  height: 96px;
  border-radius: 6px;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

nav a {
  font-size: 1.15rem;
  font-weight: 500;
  opacity: .92;
}

.menu-btn {
  display: none;
  align-items: center;
  gap: .45rem;
  padding: .55rem .75rem;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.8);
  cursor: pointer;
}

.cta {
  padding: .75rem 1.2rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(14,165,233,.35);
  font-size: 1.05rem;
}

main {
  padding: 40px 0 60px;
}

.muted { color: var(--muted); }

/* Generic card */
.card {
  background: #fff;
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

@media (max-width: 900px) {
  nav ul { display: none; }
  .menu-btn { display: inline-flex; }

  .mobile-menu {
    display: none;
    position: absolute;
    left: 0; right: 0;
    top: 86px;
    background: rgba(255,255,255,.95);
    border-bottom: 1px solid rgba(0,0,0,.08);
  }
  .mobile-menu ul { list-style: none; margin: 0; padding: 12px; }
  .mobile-menu li { border-top: 1px solid rgba(0,0,0,.06); }
  .mobile-menu a { display: block; padding: 14px 18px; }
}

/* FOOTER */
footer {
  padding: 30px 0 60px;
  color: var(--muted);
  border-top: 1px solid rgba(0,0,0,.08);
  background: rgba(255,255,255,.6);