:root {
  --primary: #0056b3;
  --primary-light: #3399ff;
  --accent: #e53935;
  --bg: #f5f7fb;
  --text: #222;
  --muted: #666;
  --card-bg: #ffffff;
  --border: #dde3ee;
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(circle at top, #e3f2fd 0, #f5f7fb 45%, #eef1f7 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER */
header {
  padding: 1.5rem 1rem 0.5rem;
}

.top-bar {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo-main img {
  width: 100%;
  max-width: 420px;
  height: auto;
}

.cert-block {
  text-align: right;
  font-size: 0.85rem;
  color: var(--muted);
}

.cert-block strong {
  color: var(--primary);
}

.cert-block img {
  max-width: 260px;
  height: auto;
  margin-top: 0.35rem;
}

.brand-strip {
  max-width: 1100px;
  margin: 0.75rem auto 0;
  text-align: center;
}

.brand-strip img {
  max-width: 360px;
  height: auto;
}

.aer-logo {
  max-width: 360px;
  height: auto;
  margin-top: 0.75rem;
}

.divider {
  max-width: 1100px;
  margin: 1.5rem auto 0;
  text-align: center;
}

.divider img {
  width: 100%;
  max-width: 600px;
  height: auto;
  opacity: 0.9;
}

/* MAIN */
main {
  flex: 1;
  padding: 1.5rem 1rem 2.5rem;
}

.content {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 2fr);
  gap: 1.5rem;
}

.hero {
  text-align: center;
  padding: 1.5rem 1rem 1rem;
}

.hero-title {
  font-family: "Goudy Old Style", "Georgia", serif;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.hero-subtitle {
  font-family: "Goudy Old Style", "Georgia", serif;
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  color: var(--primary-light);
  margin-top: 0.35rem;
  letter-spacing: 0.08em;
}

.date-line {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--card-bg);
  border-radius: 0.9rem;
  border: 1px solid var(--border);
  padding: 1.25rem 1.4rem;
  box-shadow: 0 10px 25px rgba(15, 35, 75, 0.08);
}

.card h2 {
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.card .label {
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
  display: block;
}

/* CONTATORE */
.visit-counter {
  margin-top: 1.5rem;
  text-align: center;
  font-family: "Segoe UI", Roboto, sans-serif;
}

.legacy-counter-img {
  padding: 0.4rem 1rem;
  background: white;
  border-radius: 0.6rem;
  border: 2px solid var(--primary-light);
  box-shadow: 0 4px 12px rgba(0, 60, 130, 0.15);
}

.counter-label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.9rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  padding: 0.75rem 1rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* RESPONSIVE */
@media (max-width: 720px) {
  .top-bar {
    justify-content: center;
    text-align: center;
  }
  .cert-block {
    text-align: center;
  }
  .content {
    grid-template-columns: minmax(0, 1fr);
  }
}