/* Andrea Capra - sito vetrina
   Design system: UI UX Pro Max, profilo "Trust & Authority + Conversion",
   stile "Accessible & Ethical", pairing tipografico "Minimal Swiss" (Inter).
   Token di colore, spaziatura, raggi e ombre presi da
   design-system/andrea-capra/MASTER.md.

   Unica deviazione dal MASTER: l accento. Il design system propone #0369A1,
   qui si usa #2563EB perche e lo stesso blu della giacca nel ritratto
   (campionata: #1C2641, tonalita 220). Stessa famiglia cromatica, versione
   satura, e supera comunque il 4.5:1 su bianco. */

@font-face { font-family:'Inter'; src:url('/assets/fonts/inter-latin-400-normal.woff2') format('woff2'); font-weight:400; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('/assets/fonts/inter-latin-500-normal.woff2') format('woff2'); font-weight:500; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('/assets/fonts/inter-latin-600-normal.woff2') format('woff2'); font-weight:600; font-style:normal; font-display:swap; }
@font-face { font-family:'Inter'; src:url('/assets/fonts/inter-latin-700-normal.woff2') format('woff2'); font-weight:700; font-style:normal; font-display:swap; }

:root {
  /* Colore */
  --primary:        #0F172A;
  --on-primary:     #FFFFFF;
  --secondary:      #334155;
  --accent:         #2563EB;
  --accent-strong:  #1D4ED8;
  --on-accent:      #FFFFFF;
  --accent-wash:    #EFF4FE;
  --bg:             #F8FAFC;
  --fg:             #020617;
  --card:           #FFFFFF;
  --card-fg:        #020617;
  --muted:          #E8ECF1;
  --muted-fg:       #475569;
  --border:         #E2E8F0;
  --ring:           #2563EB;

  /* Spaziatura, scala 4/8 */
  --space-xs: 4px; --space-sm: 8px;  --space-md: 16px; --space-lg: 24px;
  --space-xl: 32px; --space-2xl: 48px; --space-3xl: 64px;

  /* Raggi: 8 controlli, 12 card, 16 elementi in evidenza. Nessun altro valore. */
  --r-ctl: 8px; --r-card: 12px; --r-feat: 16px;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.05);
  --shadow-md: 0 4px 6px rgba(15,23,42,.08);
  --shadow-lg: 0 10px 15px rgba(15,23,42,.10);
  --shadow-xl: 0 20px 25px rgba(15,23,42,.14);

  --wrap: 1140px;
  --nav-h: 68px;
  --ease: cubic-bezier(.16,1,.3,1);

  /* Scala z-index dichiarata, per non inventare valori a caso */
  --z-nav: 40; --z-skip: 100;

  color-scheme: light;
}

/* Lo scuro non segue il sistema: il tema principale e chiaro e resta chiaro.
   Si attiva solo con il pulsante, che scrive data-theme="dark". */
:root[data-theme="dark"] {
  --primary:        #E2E8F0;
  --on-primary:     #0B1220;
  --secondary:      #94A3B8;
  --accent:         #60A5FA;
  --accent-strong:  #93C5FD;
  --on-accent:      #0B1220;
  --accent-wash:    #16233B;
  --bg:             #0B1220;
  --fg:             #E8EDF5;
  --card:           #111A2B;
  --card-fg:        #E8EDF5;
  --muted:          #1B263B;
  --muted-fg:       #A6B3C7;
  --border:         #24334D;
  --ring:           #60A5FA;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow-md: 0 4px 6px rgba(0,0,0,.40);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.45);
  --shadow-xl: 0 20px 25px rgba(0,0,0,.50);

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 16px;          /* base 16: sotto, iOS ingrandisce da solo */
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -.02em; color: var(--fg); }
h1 { font-weight: 700; }
h2, h3 { font-weight: 600; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--space-lg); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: var(--z-skip);
  background: var(--accent); color: var(--on-accent);
  padding: var(--space-md) var(--space-lg);
  text-decoration: none; font-weight: 500;
  border-radius: 0 0 var(--r-ctl) 0;
}
.skip:focus { left: 0; }

/* Anello di focus a 3px con scostamento: resta visibile su qualsiasi fondo e
   supera il 3:1 richiesto per gli elementi non testuali. */
:where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
  border-radius: var(--r-ctl);
}

/* Un solo posto in cui si dichiara che una cosa e cliccabile. */
a, button { touch-action: manipulation; }
button, .btn, .icon-btn { cursor: pointer; }

/* ---------- Navigazione ---------- */
.nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}
.nav.is-stuck { border-bottom-color: var(--border); }
.nav-in { height: var(--nav-h); display: flex; align-items: center; gap: var(--space-xl); }

.mark { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.mark-glyph {
  display: grid; place-items: center;
  width: 32px; height: 32px;
  background: var(--primary); color: var(--on-primary);
  border-radius: var(--r-ctl);
  font-size: 12px; font-weight: 600; letter-spacing: .02em;
}
.mark-name { font-weight: 600; font-size: 15px; }

.nav-links { display: flex; gap: var(--space-lg); }
.nav-links a {
  display: inline-flex; align-items: center;
  min-height: 44px;                      /* area toccabile piena */
  padding-inline: var(--space-xs);
  font-size: 15px; color: var(--muted-fg); text-decoration: none;
  transition: color .2s var(--ease);
}
.nav-links a:hover { color: var(--accent); }

.nav-end { display: flex; align-items: center; gap: var(--space-sm); }

.icon-btn {
  display: grid; place-items: center;
  width: 44px; height: 44px; padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-ctl);
  color: var(--muted-fg);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-wash); }
.ico-moon { display: none; }
:root[data-theme="dark"] .ico-sun { display: none; }
:root[data-theme="dark"] .ico-moon { display: block; }

/* ---------- Bottoni ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px;
  padding: 12px var(--space-lg);
  background: var(--accent); color: var(--on-accent);
  border: 1px solid var(--accent);
  border-radius: var(--r-ctl);
  font-size: 15px; font-weight: 600; text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  /* Solo colore e ombra: nessuna trasformazione che sposti il layout. */
  transition: background-color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:hover { background: var(--accent-strong); border-color: var(--accent-strong); box-shadow: var(--shadow-md); }
.btn:active { box-shadow: none; }
.btn-lg { min-height: 52px; padding: 14px var(--space-xl); font-size: 16px; }
.btn-sm { min-height: 44px; padding: 10px var(--space-md); font-size: 14px; }
.btn-outline {
  background: transparent; color: var(--fg); border-color: var(--border);
  box-shadow: none; font-weight: 500;
}
.btn-outline:hover { background: var(--accent-wash); border-color: var(--accent); color: var(--accent); box-shadow: none; }

.link-arrow {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  min-height: 48px; padding-inline: var(--space-sm);
  color: var(--accent); font-weight: 500; text-decoration: none;
}
.link-arrow svg { transition: transform .2s var(--ease); }
.link-arrow:hover { text-decoration: underline; text-underline-offset: 3px; }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- Hero ---------- */
.hero { padding-block: var(--space-3xl) var(--space-2xl); }
.hero-in {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: var(--space-3xl);
  align-items: center;
}
.kicker {
  font-size: 14px; font-weight: 600; color: var(--accent);
  margin-bottom: var(--space-md);
}
.hero h1 { font-size: clamp(2rem, 3.6vw, 2.75rem); }
.lead {
  margin-top: var(--space-lg);
  max-width: 62ch;                        /* misura di lettura controllata */
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--muted-fg);
}
.hero-cta {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: var(--space-sm) var(--space-md);
  margin-top: var(--space-xl);
}
.hero-media {
  aspect-ratio: 4 / 5;
  border-radius: var(--r-feat);
  overflow: hidden;
  background: var(--muted);
  box-shadow: var(--shadow-xl);
}
/* Il ritratto e piu stretto del riquadro: il 30% alza il taglio e tiene la
   testa lontana dal bordo anche sugli schermi stretti. */
.hero-media picture { display: block; width: 100%; height: 100%; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }

/* ---------- Prova ---------- */
.proof {
  background: var(--card);
  border-block: 1px solid var(--border);
  padding-block: var(--space-2xl);
}
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.stat { padding-left: var(--space-lg); border-left: 3px solid var(--accent); }
.stat-n {
  display: block;
  font-size: clamp(1.75rem, 3vw, 2.25rem); font-weight: 700;
  color: var(--primary); line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat-t { display: block; margin-top: var(--space-sm); font-size: 14px; color: var(--muted-fg); }

/* ---------- Sezioni ---------- */
.sect { padding-block: var(--space-3xl); }
.sect-alt { background: var(--card); border-block: 1px solid var(--border); }
.sect h2 { font-size: clamp(1.5rem, 2.4vw, 1.875rem); }
.sect-lead {
  margin-top: var(--space-md); max-width: 62ch;
  color: var(--muted-fg);
}

/* ---------- Card ---------- */
.cards {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}
.card {
  padding: var(--space-xl);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.sect-alt .card { background: var(--bg); }
.card:hover { box-shadow: var(--shadow-md); border-color: var(--accent); }
.card-ico {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  margin-bottom: var(--space-md);
  background: var(--accent-wash); color: var(--accent);
  border-radius: var(--r-ctl);
}
.card h3 { font-size: 1.125rem; margin-bottom: var(--space-sm); }
.card p { color: var(--muted-fg); font-size: 15px; }

/* ---------- Percorso ---------- */
.rail { margin-top: var(--space-2xl); }
.stop {
  display: grid; grid-template-columns: 120px minmax(0, 1fr);
  gap: var(--space-xl);
  padding-block: var(--space-lg);
  border-top: 1px solid var(--border);
}
.stop:last-child { border-bottom: 1px solid var(--border); }
.stop-when {
  display: flex; flex-direction: column;
  font-size: 14px; color: var(--muted-fg);
  font-variant-numeric: tabular-nums;
}
.stop-year { font-weight: 600; color: var(--accent); }
.stop-what h3 { font-size: 1.0625rem; }
.org { margin-top: var(--space-xs); font-size: 14px; font-weight: 500; color: var(--secondary); }
.stop-what > p:last-child { margin-top: var(--space-md); color: var(--muted-fg); font-size: 15px; max-width: 72ch; }

/* ---------- Strumenti ---------- */
.logos {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}
.logos img { height: 36px; width: auto; }
.chips {
  display: flex; flex-wrap: wrap; gap: var(--space-sm);
  margin-top: var(--space-xl);
}
.chips li {
  padding: 6px 12px;
  background: var(--muted); color: var(--secondary);
  border-radius: var(--r-ctl);
  font-size: 14px; font-weight: 500;
  white-space: nowrap;
}

/* ---------- Formazione e lingue ---------- */
.split {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}
.sub { font-size: 1rem; margin-bottom: var(--space-md); }
.entry { padding-block: var(--space-md); border-top: 1px solid var(--border); }
.entry:first-of-type { border-top: 0; padding-top: 0; }
.entry-t { font-weight: 500; }
.entry-s { margin-top: 2px; font-size: 14px; color: var(--muted-fg); }

/* ---------- Chiusura ---------- */
.cta { padding-block: var(--space-3xl); }
.cta-in { max-width: 640px; }
.avatar {
  width: 80px; height: 80px;
  border-radius: 50%; object-fit: cover;
  border: 3px solid var(--card);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-lg);
}
.cta h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
.cta-in > p { margin-top: var(--space-md); color: var(--muted-fg); }
.cta .btn-lg { margin-top: var(--space-xl); }
.reach {
  display: grid; gap: var(--space-xs);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}
.reach li { display: flex; align-items: center; gap: var(--space-md); color: var(--muted-fg); }
.reach a {
  display: flex; align-items: center;
  min-height: 44px;
  color: var(--muted-fg); text-decoration: none; font-size: 15px;
}
.reach a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.foot { background: var(--card); border-top: 1px solid var(--border); }
.foot-in {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-md);
  padding-block: var(--space-lg);
  font-size: 14px; color: var(--muted-fg);
}
.foot a { text-decoration: none; }
.foot a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Ingresso allo scroll ----------
   Equivale allo stagger proposto dal design system, ottenuto con CSS e
   IntersectionObserver invece che con GSAP: una libreria da decine di KB per
   una sola animazione contraddirebbe le regole di performance della skill.
   Lo stato nascosto dipende dalla classe .js, quindi senza JavaScript il
   contenuto e visibile da subito. */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(16px); }
  .js .reveal.is-in {
    opacity: 1; transform: none;
    transition: opacity .4s var(--ease), transform .4s var(--ease);
  }
}

/* ---------- Responsive: 1024 / 768 / 375 ---------- */
@media (max-width: 1024px) {
  .hero-in { gap: var(--space-2xl); }
  .stats { gap: var(--space-lg); }
}

@media (max-width: 900px) {
  .hero-in { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .hero-media { max-width: 300px; }
  .cards { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: var(--space-xl); }
}

@media (max-width: 768px) {
  /* A 375px il titolo cadeva su quattro righe e spingeva il pulsante fuori
     dalla prima schermata: due punti in meno lo riportano a tre. */
  .hero h1 { font-size: 1.75rem; }
  .nav-links { display: none; }
  .stats { grid-template-columns: 1fr; gap: var(--space-lg); }
  .hero { padding-block: var(--space-2xl); }
  .sect, .cta { padding-block: var(--space-2xl); }
  .stop { grid-template-columns: 1fr; gap: var(--space-sm); }
  .stop-when { flex-direction: row; gap: var(--space-sm); }
  .stop-when .stop-to::before { content: '- '; }
  .logos { gap: var(--space-xl); }
  .card { padding: var(--space-lg); }
}

/* Il link del footer era alto 17px: sotto il minimo di 24x24 CSS px che
   WCAG 2.2 chiede per i bersagli del puntatore. */
.foot a { display: inline-flex; align-items: center; min-height: 24px; }


/* ---------- Chi sono ---------- */
.prose { max-width: 68ch; }        /* misura di lettura: 60-75 caratteri */
.prose h2 { margin-bottom: var(--space-lg); }
.prose p { color: var(--muted-fg); }
.prose p + p { margin-top: var(--space-md); }
.prose .big { font-size: 1.125rem; color: var(--fg); }

.sub-lead {
  font-size: 1rem; font-weight: 600;
  margin-top: var(--space-3xl); margin-bottom: var(--space-lg);
}
.cards-3 { grid-template-columns: repeat(3, 1fr); margin-top: 0; }
.card h4 { margin: 0 0 var(--space-sm); font-size: 1.0625rem; font-weight: 600; letter-spacing: -.02em; }

/* ---------- Domande ---------- */
.qa { margin-top: var(--space-xl); max-width: 72ch; }
.qa-item { padding-block: var(--space-lg); border-top: 1px solid var(--border); }
.qa-item h3 { font-size: 1.0625rem; margin-bottom: var(--space-sm); }
.qa-item p { color: var(--muted-fg); }

/* Nella chiusura picture avvolge l avatar: senza display block il cerchio
   erediterebbe lo spazio di riga di un elemento inline. */
.cta-in picture { display: block; }

@media (max-width: 900px) {
  .cards-3 { grid-template-columns: 1fr; }
}