/* ============================================================
   CORTEX — Semantic Memory Infrastructure
   Stylesheet condiviso. Palette estratta dal logo:
   crema avorio (#F2EDE3) + nero profondo (#0A0A0A).
   ============================================================ */

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

:root {
  /* Palette */
  --bg: #F2EDE3;
  --bg-elev: #EBE4D5;
  --bg-deep: #E2D9C5;
  --ink: #0A0A0A;
  --ink-soft: #2A2A2A;
  --ink-mute: #6E6A60;
  --line: #1A1A1A;
  --line-soft: rgba(10, 10, 10, 0.12);
  --accent: #0A0A0A;
  --live: #2E7D5E;   /* verde live discreto */
  --warn: #B8694D;   /* rame caldo per warning */

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Menlo', monospace;

  /* Spacing */
  --container: 1180px;
  --gap-xl: 96px;
  --gap-lg: 64px;
  --gap-md: 32px;
  --gap-sm: 16px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(242, 237, 227, 0.88);
  backdrop-filter: saturate(150%) blur(10px);
  -webkit-backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.brand img {
  height: 36px;
  width: auto;
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav a {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
  position: relative;
}

.nav a:hover { color: var(--ink); }
.nav a.active { color: var(--ink); }
.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--ink);
}

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.lang-toggle button {
  background: transparent;
  border: 0;
  padding: 6px 12px;
  cursor: pointer;
  color: var(--ink);
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  transition: all 0.2s ease;
}

.lang-toggle button.is-active {
  background: var(--ink);
  color: var(--bg);
}

/* ---------- Hero ---------- */
.hero {
  padding: var(--gap-xl) 0 var(--gap-lg);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--gap-lg);
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--ink-mute);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero h1 {
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.02;
  margin-bottom: 28px;
  font-weight: 400;
}

.hero h1 em {
  font-style: italic;
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 400;
}

.hero-lead {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-art {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-art img {
  max-width: 100%;
  width: 460px;
  height: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--ink);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--ink-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn-arrow::after {
  content: '→';
  font-family: var(--font-mono);
  transition: transform 0.2s ease;
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- Sections ---------- */
section {
  padding: var(--gap-xl) 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--gap-md);
  margin-bottom: var(--gap-lg);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 24px;
}

.section-header h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.05;
  max-width: 740px;
}

.section-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  white-space: nowrap;
}

/* ---------- Cards ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.card {
  background: var(--bg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
}

.card h3 {
  font-size: 22px;
  line-height: 1.2;
  font-weight: 500;
}

.card p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.6;
}

/* ---------- Metrics ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  margin-top: var(--gap-md);
}

.metric {
  background: var(--bg);
  padding: 32px 24px;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-mute);
}

/* ---------- Code block ---------- */
.codeblock {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  background: var(--ink);
  color: #F2EDE3;
  padding: 24px 28px;
  border-radius: 6px;
  overflow-x: auto;
  white-space: pre;
}

.codeblock .k { color: #B8995A; }
.codeblock .s { color: #C9B690; }
.codeblock .c { color: #6E6A60; font-style: italic; }

/* ---------- Live status badge ---------- */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--bg-elev);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 4px rgba(46, 125, 94, 0.18);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--bg);
  padding: var(--gap-lg) 0 var(--gap-md);
  margin-top: var(--gap-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand img {
  height: 32px;
  filter: invert(1);
}

.footer-brand span {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 16px;
}

.footer-tag {
  font-size: 13px;
  color: rgba(242, 237, 227, 0.6);
  max-width: 280px;
  line-height: 1.5;
}

.footer h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(242, 237, 227, 0.5);
  margin-bottom: 18px;
  font-weight: 400;
}

.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }

.footer ul a {
  color: rgba(242, 237, 227, 0.85);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer ul a:hover { color: var(--bg); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid rgba(242, 237, 227, 0.1);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242, 237, 227, 0.5);
}

/* ---------- Two-column with figure ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-lg);
  align-items: start;
}

.two-col + .two-col { margin-top: var(--gap-lg); }

.col-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.18em;
  margin-bottom: 16px;
}

.two-col h3 {
  font-size: 28px;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 400;
}

.two-col p {
  color: var(--ink-soft);
  font-size: 16px;
  margin-bottom: 16px;
}

/* ---------- Definition list ---------- */
.deflist {
  width: 100%;
  border-collapse: collapse;
}

.deflist tr {
  border-bottom: 1px solid var(--line-soft);
}

.deflist td {
  padding: 18px 0;
  vertical-align: top;
  font-size: 15px;
}

.deflist td:first-child {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-mute);
  width: 220px;
  white-space: nowrap;
}

/* ---------- Podcast player ---------- */
.podcast-card {
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  padding: 40px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
}

.podcast-card .icon-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.podcast-card h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.podcast-card p {
  font-size: 14px;
  color: var(--ink-mute);
  margin-bottom: 16px;
}

.podcast-card audio {
  width: 100%;
  max-width: 600px;
  filter: grayscale(1);
}

/* ---------- Tag pill ---------- */
.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-right: 6px;
}

/* ---------- Quote ---------- */
.quote {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(24px, 3vw, 36px);
  font-style: italic;
  font-weight: 400;
  line-height: 1.3;
  color: var(--ink);
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  padding: var(--gap-md) 0;
}

.quote::before, .quote::after {
  content: '—';
  display: block;
  width: 48px;
  height: 1px;
  background: var(--ink);
  margin: 24px auto;
}

/* ---------- Bilingual visibility ---------- */
[data-lang] { display: none; }
html[lang="it"] [data-lang="it"] { display: initial; }
html[lang="en"] [data-lang="en"] { display: initial; }

[data-lang][data-block] { display: none; }
html[lang="it"] [data-lang="it"][data-block] { display: block; }
html[lang="en"] [data-lang="en"][data-block] { display: block; }

[data-lang][data-flex] { display: none; }
html[lang="it"] [data-lang="it"][data-flex] { display: flex; }
html[lang="en"] [data-lang="en"][data-flex] { display: flex; }

/* ---------- Legal pages ---------- */
.legal-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 32px 96px;
}

.legal-wrap .eyebrow {
  margin-bottom: 20px;
}

.legal-wrap h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(36px, 4.4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.legal-wrap .legal-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 56px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line-soft);
}

.legal-wrap h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 48px 0 16px;
  padding-top: 8px;
}

.legal-wrap h2 .legal-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
  margin-right: 14px;
  display: inline-block;
  vertical-align: 2px;
}

.legal-wrap h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  margin: 28px 0 10px;
}

.legal-wrap p,
.legal-wrap ul,
.legal-wrap ol {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.legal-wrap ul, .legal-wrap ol { padding-left: 22px; }
.legal-wrap li { margin-bottom: 8px; }
.legal-wrap li strong { color: var(--ink); font-weight: 500; }
.legal-wrap p strong { color: var(--ink); font-weight: 500; }

.legal-wrap a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.legal-wrap a:hover { color: var(--ink-soft); }

.legal-wrap .legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
}
.legal-wrap .legal-table th,
.legal-wrap .legal-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-soft);
}
.legal-wrap .legal-table th {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 400;
  border-bottom: 1px solid var(--ink-soft);
}

.legal-wrap .legal-callout {
  background: var(--bg-elev);
  border-left: 2px solid var(--ink);
  padding: 18px 22px;
  margin: 28px 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.legal-wrap .legal-placeholder {
  background: rgba(184, 105, 77, 0.12);
  color: var(--warn);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* Footer legal links row */
.footer-legal {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.footer-legal a {
  color: rgba(242, 237, 227, 0.7);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-legal a:hover { color: var(--bg); }
.footer-legal .dot {
  width: 3px;
  height: 3px;
  background: rgba(242, 237, 227, 0.35);
  border-radius: 50%;
  display: inline-block;
}

@media (max-width: 640px) {
  .footer-legal { flex-wrap: wrap; gap: 10px; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid, .two-col {
    grid-template-columns: 1fr;
  }
  .hero-art { order: -1; }
  .hero-art img { width: 280px; }
  .grid-3, .metrics { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav { gap: 18px; }
  .nav a { font-size: 13px; }
}

@media (max-width: 640px) {
  :root { --gap-xl: 64px; --gap-lg: 40px; }
  .container { padding: 0 20px; }
  .header-inner { height: 64px; }
  .brand-text { font-size: 14px; }
  .grid-3, .grid-2, .metrics { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .podcast-card { grid-template-columns: 1fr; text-align: center; }
  .podcast-card .icon-circle { margin: 0 auto; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .nav { display: none; }
  .deflist td:first-child { width: 140px; font-size: 10px; }
}