:root {
  --ink: #111827; --muted: #5B6472; --hair: #E3E6EB; --bg: #FFFFFF; --soft: #F5F6F8;
  --navy: #0B1F3A; --blue: #2F5E9E; --amber: #C77C02; --red: #B4443A; --green: #2F7D5B;
  --maxw: 1080px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 "Inter", system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--blue); text-underline-offset: 2px; }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

header.top { border-bottom: 1px solid var(--hair); }
header.top .wrap { display: flex; justify-content: space-between; align-items: center; height: 60px; gap: 16px; }
.brand { font-weight: 700; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; margin-left: 20px; font-size: 15px; }
nav a:hover, nav a[aria-current] { color: var(--ink); }

.hero { background: var(--navy); color: #fff; padding: 72px 0 64px; }
.kicker { font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: #9DB3CF; margin: 0 0 18px; }
.hero h1 { font-size: clamp(36px, 6vw, 64px); line-height: 1.04; letter-spacing: -0.03em; margin: 0 0 18px; max-width: 14em; }
.hero p.lead { font-size: clamp(18px, 2.2vw, 22px); color: #C9D5E6; max-width: 40em; margin: 0; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.stat b { display: block; font-size: clamp(30px, 4.4vw, 46px); letter-spacing: -0.03em; line-height: 1.05; }
.stat span { font-size: 14px; color: #9DB3CF; }
.stat.amber b { color: #FFB340; } .stat.sky b { color: #64B5FF; } .stat.grey b { color: #9CA3AF; }

section.block { padding: 64px 0; border-bottom: 1px solid var(--hair); }
section.block h2 { font-size: clamp(26px, 3.4vw, 36px); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 14px; }
section.block .sub { color: var(--muted); max-width: 46em; margin: 0 0 32px; }

.docs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.doc { border: 1px solid var(--hair); border-radius: 10px; padding: 22px; display: flex; flex-direction: column; gap: 8px; background: #fff; }
.doc h3 { margin: 0; font-size: 20px; letter-spacing: -0.01em; }
.doc p { margin: 0; color: var(--muted); font-size: 15px; flex: 1; }
.doc .links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.btn { display: inline-block; padding: 9px 14px; border-radius: 8px; background: var(--navy); color: #fff; text-decoration: none; font-size: 14px; font-weight: 600; }
.btn.ghost { background: transparent; color: var(--navy); border: 1px solid var(--navy); }

.thesis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.thesis h3 { font-size: 19px; margin: 0 0 6px; letter-spacing: -0.01em; }
.thesis p { margin: 0; color: var(--muted); font-size: 15.5px; }
.thesis .n { font-size: 13px; color: var(--amber); font-weight: 700; letter-spacing: 0.08em; }

figure { margin: 0 0 40px; }
figure .t { font-weight: 700; margin: 0 0 4px; }
figure .m { color: var(--muted); font-size: 15px; margin: 0 0 14px; }
figure img { border: 1px solid var(--hair); border-radius: 8px; }
figure figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }

.qr { display: flex; gap: 24px; align-items: center; background: var(--soft); border-radius: 12px; padding: 22px; }
.qr img { width: 130px; height: 130px; flex: none; }

/* fonti */
.src h2 { margin-top: 0; }
.src h3 { font-size: 18px; margin: 36px 0 10px; padding-top: 16px; border-top: 1px solid var(--hair); }
.src ul { padding-left: 20px; margin: 0; }
.src li { margin: 0 0 10px; }
.src li .why { display: block; color: var(--muted); font-size: 14.5px; }

footer { padding: 32px 0 48px; color: var(--muted); font-size: 14px; }

@media (max-width: 760px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .docs, .thesis { grid-template-columns: 1fr; }
  nav a { margin-left: 14px; }
  .qr { flex-direction: column; align-items: flex-start; }
  section.block { padding: 44px 0; }
  .hero { padding: 52px 0 44px; }
}
@media (max-width: 760px) {
  header.top .wrap { flex-wrap: wrap; height: auto; padding-top: 12px; padding-bottom: 12px; row-gap: 6px; }
  nav a:first-child { margin-left: 0; }
  .hero h1, .hero p, .qr a { overflow-wrap: anywhere; }
}
.stats > *, .docs > *, .thesis > *, .qr > div, header.top .wrap > * { min-width: 0; }
.qr a, .src li { overflow-wrap: anywhere; }