/* Foglio di stile delle pagine di approfondimento (/…, /en/…, /de/…).
 *
 * Nel legacy questi ~70 selettori erano incollati inline in ognuna delle 27
 * pagine. Qui stanno una volta sola: il browser lo scarica al primo articolo e
 * lo riusa su tutti gli altri, e una correzione di stile non va replicata a
 * mano su 33 file.
 *
 * Copre i due impianti delle pagine originali, che restano diversi di
 * proposito: `.article-*` per gli articoli brevi, `.hero-art` + `.content` per
 * le pagine più costruite. I selettori generici (h2, p) sono confinati dentro
 * `.content` — fuori da lì colpirebbero anche nav e footer.
 */

:root {
  --bark: #2A1A0E;
  --walnut: #5C3317;
  --oak: #8B5E2F;
  --honey: #C4853A;
  --sand: #E8D5B0;
  --parchment: #F4ECD8;
  --cream: #FAF6EE;
  --white: #FEFCF8;
  --smoke: #9A8470;
  --serif: 'Playfair Display', Georgia, serif;
  --body: 'Crimson Pro', Georgia, serif;
  --mono: 'DM Mono', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--body); background: var(--cream); color: var(--bark); overflow-x: hidden; }

/* ── navigazione ─────────────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.2rem 4rem;
  background: rgba(250, 246, 238, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(92, 51, 23, 0.1);
}
.nav-logo { font-family: var(--serif); font-size: 1.3rem; font-weight: 500; color: var(--bark); text-decoration: none; letter-spacing: .02em; }
.nav-logo em { font-style: italic; color: var(--honey); }
.nav-group { display: flex; align-items: center; gap: 1.5rem; }
.nav-back { font-family: var(--mono); font-size: .62rem; letter-spacing: .18em; text-transform: uppercase; color: var(--smoke); text-decoration: none; transition: color .2s; }
.nav-back:hover { color: var(--honey); }
.nav-cta { font-family: var(--mono); font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: var(--white); background: var(--bark); padding: .6rem 1.3rem; text-decoration: none; transition: background .2s; }
.nav-cta:hover { background: var(--oak); }

/* Selettore lingua. Qui sono ANCORE, non bottoni: ogni lingua è un URL a sé,
 * quindi il cambio lingua è una navigazione vera e resta un link — funziona
 * col tasto centrale, si può copiare, e Google lo segue. */
.lang { display: flex; border: 1px solid rgba(42, 26, 14, .2); border-radius: 999px; overflow: hidden; }
.lang a {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .18em; text-transform: uppercase;
  padding: .5rem .75rem; color: var(--smoke); text-decoration: none;
  transition: background .2s, color .2s;
}
.lang a:hover { background: rgba(196, 133, 58, .12); color: var(--bark); }
.lang a[aria-current="true"] { background: var(--honey); color: #fff; }

/* ── articolo breve (ex archetipo «article») ─────────────────────────── */
.article-hero { padding: 10rem 4rem 4rem; max-width: 860px; margin: 0 auto; }
.article-cat { font-family: var(--mono); font-size: .62rem; letter-spacing: .2em; text-transform: uppercase; color: var(--honey); display: block; margin-bottom: 1rem; }
.article-date { font-family: var(--mono); font-size: .6rem; letter-spacing: .1em; color: var(--smoke); opacity: .6; display: block; margin-bottom: 2rem; }
.article-hero h1 { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 400; line-height: 1.15; color: var(--bark); }
.article-divider { border: none; border-top: 1px solid rgba(92, 51, 23, .1); margin: 0 auto; max-width: 720px; }
.article-body { max-width: 720px; margin: 0 auto; padding: 3rem 4rem 6rem; }
.article-body p { font-size: 1.15rem; font-weight: 300; line-height: 1.85; color: var(--bark); margin-bottom: 1.6rem; }
.article-body strong { font-weight: 400; color: var(--walnut); }
.article-cta { background: var(--bark); padding: 5rem 4rem; text-align: center; }
.article-cta p { font-family: var(--mono); font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: rgba(255, 255, 255, .4); margin-bottom: 1.5rem; }
.article-cta h2 { font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.4rem); color: var(--sand); margin-bottom: 2rem; font-weight: 400; }
.article-cta a { font-family: var(--mono); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--bark); background: var(--sand); padding: 1rem 2.4rem; text-decoration: none; display: inline-block; transition: background .2s; }
.article-cta a:hover { background: var(--white); }

/* ── pagina costruita (ex archetipo «landing») ───────────────────────── */
.hero-art { background: linear-gradient(135deg, #2A1A0E 0%, #4A2810 100%); padding: 8rem 3rem 5rem; text-align: center; }
.hero-art .tag { font-family: var(--mono); font-size: .65rem; letter-spacing: .25em; text-transform: uppercase; color: var(--honey); margin-bottom: 1.5rem; }
.hero-art h1 { font-family: var(--serif); font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 400; color: #fff; line-height: 1.15; margin-bottom: 1.5rem; }
.hero-art h1 em { font-style: italic; color: var(--sand); }
.hero-art p { font-size: 1.15rem; font-weight: 300; color: rgba(255, 255, 255, .55); max-width: 600px; margin: 0 auto; }

.content { max-width: 860px; margin: 0 auto; padding: 5rem 2rem; }
.content h2 { font-family: var(--serif); font-size: 1.9rem; font-weight: 400; color: var(--bark); margin: 3rem 0 1rem; }
.content h2 em { font-style: italic; color: var(--oak); }
.content p { font-size: 1.1rem; line-height: 1.9; color: var(--walnut); margin-bottom: 1rem; }
.content a { color: var(--oak); }
.scenario { background: var(--parchment); border-left: 3px solid var(--honey); padding: 2rem; margin: 2.5rem 0; font-style: italic; font-size: 1.1rem; line-height: 1.8; color: var(--walnut); }
.use-cases { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin: 2.5rem 0; }
.use-case { padding: 2rem; border: 1px solid rgba(92, 51, 23, .15); }
.use-case h3 { font-family: var(--serif); font-size: 1.1rem; font-weight: 400; color: var(--bark); margin-bottom: .5rem; }
.use-case p { font-size: .95rem; margin: 0; color: var(--smoke); }
.cta-box { background: var(--bark); padding: 3rem; text-align: center; margin: 4rem 0; }
.cta-box h2 { color: #fff; margin: 0 0 1rem; }
.cta-box p { color: rgba(255, 255, 255, .5); margin-bottom: 2rem; }
.btn { display: inline-block; font-family: var(--mono); font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; color: var(--bark); background: var(--sand); padding: 1rem 2.5rem; text-decoration: none; }
.btn:hover { background: #fff; }

/* Blocco «Approfondisci» in coda ad alcune pagine. Nel legacy era style inline
 * ripetuto in ogni file; qui è una classe. */
.altre-letture { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(92, 51, 23, .1); }
.altre-letture .etichetta { font-family: var(--mono); font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: var(--smoke); margin-bottom: 1rem; }

/* ── piede ───────────────────────────────────────────────────────────── */
footer { background: var(--bark); color: var(--sand); padding: 2.5rem 4rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; border-top: 1px solid rgba(255, 255, 255, .05); }
footer p { font-family: var(--mono); font-size: .55rem; letter-spacing: .1em; color: rgba(232, 213, 176, .35); }
.footer-links { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer-links a { font-family: var(--mono); font-size: .55rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(232, 213, 176, .5); text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: var(--honey); }

@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .article-hero { padding: 7rem 1.5rem 3rem; }
  .article-body { padding: 2rem 1.5rem 4rem; }
  .article-cta { padding: 3rem 1.5rem; }
  footer { padding: 2rem 1.5rem; flex-direction: column; }
}
@media (max-width: 700px) { .use-cases { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .nav-back { display: none; } }