/* ==========================================================================
   DaapLAB — foglio di stile condiviso
   Palette ricavata dal logo: navy #000042 + blu/ciano del "mosaico" cerebrale,
   con un accento viola per la terza fase.
   ========================================================================== */

:root {
  --navy-950: #00002e;
  --navy-900: #000042;
  --navy-800: #0a0f5a;
  --blue-700: #00598a;
  --blue-600: #00699e;
  --blue-400: #6699ff;
  --blue-300: #99ccff;
  --cyan-400: #33ccff;
  --violet-400: #a78bfa;

  --grad: linear-gradient(100deg, #33ccff 0%, #6699ff 55%, #a78bfa 100%);
  --grad-btn: linear-gradient(120deg, #33ccff 0%, #6699ff 100%);

  --bg: #faf8f3;
  --bg-alt: #f2eee5;
  --surface: #ffffff;
  --line: #e5dfd2;
  --ink: #12142e;
  --ink-soft: #33374f;
  --muted: #5a5f73;
  --on-navy: #c4cff5;
  --on-navy-soft: #9fadd9;
  --glass: rgba(255, 255, 255, .05);
  --glass-line: rgba(255, 255, 255, .12);

  --phase-1: #33ccff;
  --phase-2: #6699ff;
  --phase-3: #a78bfa;

  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(18, 20, 46, .05), 0 1px 1px rgba(18, 20, 46, .03);
  --shadow: 0 16px 36px -18px rgba(18, 20, 46, .28), 0 2px 6px rgba(18, 20, 46, .05);
  --shadow-lg: 0 40px 80px -30px rgba(0, 0, 20, .75);

  --container: 1160px;
  --gutter: clamp(16px, 4vw, 32px);
  --header-h: 72px;
  --section-y: clamp(64px, 9vw, 120px);
}

@media (max-width: 899px) {
  :root { --header-h: 64px; }
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
html:has(.subnav) { scroll-padding-top: calc(var(--header-h) + 72px); }
@media (max-width: 1023px) {
  html:has(.toc) { scroll-padding-top: calc(var(--header-h) + 72px); }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }

a {
  color: var(--blue-600);
  text-decoration-thickness: 1px;
  text-underline-offset: .2em;
  transition: color .2s;
}
a:hover { color: var(--blue-700); }

:focus-visible {
  outline: 3px solid var(--blue-400);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  font-family: var(--font-serif);
  font-weight: 500;
  font-optical-sizing: auto;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: clamp(2.3rem, 1.3rem + 4vw, 4.4rem); }
h2 { font-size: clamp(1.85rem, 1.3rem + 2.2vw, 2.9rem); }
h3 { font-size: clamp(1.2rem, 1.1rem + .4vw, 1.4rem); line-height: 1.25; letter-spacing: -.01em; }
h4 { font-size: 1.1rem; line-height: 1.3; letter-spacing: 0; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: clamp(1.1rem, 1rem + .45vw, 1.3rem);
  line-height: 1.6;
  color: var(--ink-soft);
}
.muted { color: var(--muted); }

.text-grad,
.hero h1 em,
.page-hero h1 em {
  font-style: italic;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-right: .06em;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ---------- Layout ---------- */

.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: calc(820px + 2 * var(--gutter)); }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section--alt { background: var(--bg-alt); }
.section--line { border-top: 1px solid var(--line); }

.section-head { max-width: 720px; margin-bottom: clamp(32px, 5vw, 56px); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head p { color: var(--muted); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .65em;
  margin-bottom: 1rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-600);
}
.eyebrow::before {
  content: "";
  width: 24px; height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.grid { display: grid; gap: clamp(16px, 2.5vw, 24px); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.split {
  display: grid;
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}
@media (min-width: 960px) {
  .split { grid-template-columns: 1fr 1fr; }
  .split--text-wide { grid-template-columns: 1.1fr .9fr; }
  .split--top { align-items: start; }
}

/* ---------- Superfici scure (hero, sezioni navy) ---------- */

.dark,
.hero,
.page-hero,
.section--navy {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--navy-950);
  color: var(--on-navy);
}
.dark h1, .dark h2, .dark h3,
.hero h1, .hero h2, .hero h3,
.page-hero h1, .page-hero h2, .page-hero h3,
.section--navy h1, .section--navy h2, .section--navy h3 { color: #fff; }
.dark .eyebrow, .hero .eyebrow, .page-hero .eyebrow, .section--navy .eyebrow { color: var(--cyan-400); }
.dark .lead, .hero .lead, .page-hero .lead, .section--navy .lead,
.section--navy .section-head p { color: var(--on-navy); }

/* nebulosa di colore che si muove lentamente */
.hero::before,
.page-hero::before,
.section--navy::before {
  content: "";
  position: absolute;
  inset: -25%;
  z-index: -2;
  background:
    radial-gradient(38% 45% at 82% 22%, rgba(102, 153, 255, .38), transparent 70%),
    radial-gradient(32% 40% at 8% 92%, rgba(51, 204, 255, .26), transparent 70%),
    radial-gradient(28% 36% at 58% 70%, rgba(167, 139, 250, .22), transparent 70%);
  animation: drift 24s ease-in-out infinite alternate;
  pointer-events: none;
}
/* griglia sottile che sfuma ai bordi */
.hero::after,
.page-hero::after,
.section--navy::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  pointer-events: none;
}
@keyframes drift {
  to { transform: translate3d(5%, -4%, 0) scale(1.1); }
}

/* ---------- Pulsanti ---------- */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55em;
  min-height: 48px;
  padding: .75em 1.45em;
  border: 1.5px solid transparent;
  border-radius: 999px;
  font: 600 1rem/1.2 var(--font-sans);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s, transform .2s, box-shadow .25s;
}
.btn svg { width: 1.15em; height: 1.15em; flex: none; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: none; }

.btn-primary {
  background: var(--grad-btn);
  color: var(--navy-950);
  box-shadow: 0 12px 28px -12px rgba(51, 204, 255, .75);
}
.btn-primary:hover { color: var(--navy-950); box-shadow: 0 16px 36px -12px rgba(102, 153, 255, .9); }

.btn-ghost {
  border-color: rgba(255, 255, 255, .28);
  background: rgba(255, 255, 255, .04);
  color: #fff;
}
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .1); color: #fff; }

.btn-outline { border-color: rgba(18, 20, 46, .25); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--ink); background: var(--ink); color: #fff; }

.btn-sm { min-height: 40px; padding: .5em 1.1em; font-size: .95rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 479px) {
  .btn-row .btn { flex: 1 1 100%; }
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .4em;
  font-weight: 600;
  text-decoration: none;
}
.link-arrow svg { width: 1.1em; height: 1.1em; transition: transform .2s; }
.link-arrow:hover svg { transform: translateX(3px); }
.dark .link-arrow, .section--navy .link-arrow { color: var(--cyan-400); }

/* ---------- Header e navigazione ---------- */

.skip-link {
  position: absolute;
  top: -100px; left: 12px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 8px;
  background: #fff;
  color: var(--navy-950);
  font-weight: 600;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(0, 0, 46, .78);
  -webkit-backdrop-filter: saturate(1.6) blur(16px);
  backdrop-filter: saturate(1.6) blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.nav-open .site-header { background: var(--navy-950); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: #fff;
  text-decoration: none;
}
.brand:hover { color: #fff; }
.brand img { width: 38px; height: 38px; filter: drop-shadow(0 0 12px rgba(51, 204, 255, .35)); }
.brand b {
  font-weight: 600;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-nav ul { display: flex; gap: 4px; margin: 0; padding: 0; list-style: none; }
.site-nav a:not(.btn) {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .98rem;
  font-weight: 500;
  color: rgba(255, 255, 255, .72);
  text-decoration: none;
  transition: color .2s, background-color .2s;
}
.site-nav a:not(.btn):hover { color: #fff; background: rgba(255, 255, 255, .08); }
.site-nav a[aria-current]:not(.btn) { color: #fff; background: rgba(255, 255, 255, .12); }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  margin-right: -8px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #fff;
  cursor: pointer;
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 22px; height: 2px;
  border-radius: 2px;
  background: currentColor;
}
.nav-toggle__bars { position: relative; transition: background-color .2s; }
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  transition: transform .25s ease;
}
.nav-toggle__bars::before { top: -7px; }
.nav-toggle__bars::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 900px) {
  .site-nav { display: flex; align-items: center; gap: 20px; }
}

@media (max-width: 899px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    height: calc(100vh - var(--header-h));
    height: calc(100dvh - var(--header-h));
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding: 12px var(--gutter) 40px;
    overflow-y: auto;
    background:
      radial-gradient(500px 400px at 100% 100%, rgba(102, 153, 255, .25), transparent 70%),
      var(--navy-950);
    border-top: 1px solid rgba(255, 255, 255, .08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .nav-open .site-nav { opacity: 1; visibility: visible; transform: none; }
  .nav-open { overflow: hidden; }

  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a:not(.btn) {
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    border-radius: 0;
    font-family: var(--font-serif);
    font-size: 1.7rem;
    color: #fff;
  }
  .site-nav a:not(.btn):hover,
  .site-nav a[aria-current]:not(.btn) { background: none; }
  .site-nav a[aria-current]:not(.btn) { color: var(--cyan-400); }
  .site-nav .btn { width: 100%; min-height: 54px; font-size: 1.05rem; }
}

/* ---------- Hero (home) ---------- */

.hero { padding-block: clamp(10px, 1vw, 120px) clamp(72px, 10vw, 140px); }
.hero .lead { max-width: 34em; }

.hero-grid { display: grid; gap: 56px; align-items: center; }
@media (min-width: 1000px) {
  .hero-grid { grid-template-columns: 1.05fr .95fr; gap: 64px; }
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  font-size: .95rem;
  color: var(--on-navy-soft);
}
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-points svg { width: 18px; height: 18px; color: var(--cyan-400); flex: none; }

/* onde animate sul fondo dell'hero */
.waves {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: -1;
  width: 100%;
  height: 46%;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(transparent, #000 40%);
  mask-image: linear-gradient(transparent, #000 40%);
}
.waves path { fill: none; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.waves g { animation: wave 18s linear infinite; }
.waves g:nth-child(2) { animation-duration: 26s; animation-direction: reverse; }
.waves g:nth-child(3) { animation-duration: 34s; }
@keyframes wave { to { transform: translateX(-1440px); } }

/* visual astratto dell'hero: una sfera e tre orbite, una per fase */
.orbit {
  position: relative;
  width: min(100%, 440px);
  aspect-ratio: 1;
  margin-inline: auto;
}
.orbit__ring {
  --c: var(--phase-1);
  position: absolute;
  inset: var(--inset, 0);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 50%;
  animation: orbit-spin var(--speed, 20s) linear infinite;
  animation-delay: var(--delay, 0s);
}
/* scia luminosa che precede il punto */
.orbit__ring::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 62%, var(--c) 100%);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1.5px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1.5px));
}
.orbit__ring i {
  position: absolute;
  top: -6px; left: 50%;
  width: 12px; height: 12px;
  margin-left: -6px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 3px var(--c), 0 0 22px 6px var(--c);
}
.orbit__ring--outer { --c: var(--phase-3); --inset: 0%; --speed: 38s; --delay: -9s; }
.orbit__ring--middle { --c: var(--phase-2); --inset: 13%; --speed: 27s; --delay: -16s; }
.orbit__ring--inner { --c: var(--phase-1); --inset: 26%; --speed: 18s; --delay: -3s; }
@keyframes orbit-spin { to { transform: rotate(360deg); } }

.orbit__core {
  position: absolute;
  inset: 36%;
  overflow: hidden;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 26%, rgba(255, 255, 255, .95) 0, rgba(255, 255, 255, 0) 24%),
    conic-gradient(from 210deg, #33ccff, #6699ff, #a78bfa, #33ccff);
  box-shadow:
    inset -16px -22px 36px rgba(0, 0, 46, .55),
    0 0 60px -4px rgba(102, 153, 255, .85),
    0 0 140px -10px rgba(51, 204, 255, .55);
  animation: bob 8s ease-in-out infinite;
}
.orbit__core::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 55%, rgba(255, 255, 255, .28) 75%, transparent 95%);
  mix-blend-mode: screen;
  animation: orbit-spin 7s linear infinite;
}
/* onde che si allargano dalla sfera */
.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  inset: 36%;
  border: 1px solid rgba(102, 153, 255, .55);
  border-radius: 50%;
  animation: ping 4.5s ease-out infinite;
}
.orbit::after { animation-delay: -2.25s; }

@media (max-width: 999px) {
  .orbit { width: min(100%, 340px); }
}

.float-chip {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--glass-line);
  border-radius: 999px;
  background: rgba(10, 15, 90, .72);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 14px 30px -12px rgba(0, 0, 0, .6);
  color: #fff;
  font-size: .82rem;
  font-weight: 500;
  animation: bob 7s ease-in-out infinite;
}
.float-chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--c); box-shadow: 0 0 12px var(--c); }
.float-chip--1 { --c: var(--phase-1); top: 12%; left: -6%; }
.float-chip--2 { --c: var(--phase-2); top: 50%; right: -10%; animation-delay: -2.4s; }
.float-chip--3 { --c: var(--phase-3); bottom: 6%; left: 8%; animation-delay: -4.6s; }
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@media (max-width: 999px) {
  .float-chip--1 { left: -4%; }
  .float-chip--2 { right: -4%; }
}
@media (max-width: 559px) {
  .float-chip { font-size: .74rem; padding: 6px 11px; }
  .float-chip--2 { display: none; }
}

/* ---------- Testata pagine interne ---------- */

.page-hero { padding-block: clamp(10px, 1vw, 112px) clamp(48px, 7vw, 96px); }
.page-hero h1 { max-width: 15em; }
.page-hero .lead { max-width: 38em; margin-bottom: 0; }
.page-hero .btn-row { margin-top: 32px; }

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 24px;
  font-size: .92rem;
  color: var(--on-navy-soft);
}
.meta-row span { display: inline-flex; align-items: center; gap: 6px; }
.meta-row svg { width: 16px; height: 16px; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 22px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--on-navy-soft);
  text-decoration: none;
}
.back-link svg { width: 16px; height: 16px; transition: transform .2s; }
.back-link:hover { color: #fff; }
.back-link:hover svg { transform: translateX(-3px); }

/* ---------- Trascritto animato (hero del progetto) ---------- */

.transcript {
  overflow: hidden;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, .1);
  font-size: .97rem;
}
.transcript__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--glass-line);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--on-navy-soft);
}
.transcript__head span { display: inline-flex; align-items: center; gap: 8px; }
.transcript__head span::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 10px var(--cyan-400);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 50% { opacity: .3; } }
.transcript__lines { display: grid; gap: 16px; margin: 0; padding: 20px; list-style: none; }
.tline {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 4px 12px;
  align-items: start;
  opacity: 0;
  transform: translateY(10px);
  animation: line-in .6s ease forwards;
  animation-delay: calc(var(--i) * .8s + .3s);
}
@keyframes line-in { to { opacity: 1; transform: none; } }
.tline__who {
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  font-size: .75rem;
  font-weight: 700;
  color: #fff;
}
.tline--p .tline__who { background: var(--grad-btn); color: var(--navy-950); }
.tline p { margin: 3px 0 0; line-height: 1.55; color: #e6ebff; }
.tline mark {
  padding: 0 2px;
  border-radius: 3px;
  background: linear-gradient(var(--m), var(--m)) no-repeat 0 100% / 0% 40%;
  color: inherit;
  animation: mark-in .9s ease forwards;
  animation-delay: calc(var(--i) * .8s + 1s);
}
@keyframes mark-in { to { background-size: 100% 40%; } }
.tline .m1 { --m: rgba(51, 204, 255, .55); }
.tline .m2 { --m: rgba(102, 153, 255, .6); }
.tline .m3 { --m: rgba(167, 139, 250, .6); }
.tline__tag {
  grid-column: 2;
  justify-self: start;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.tline__tag--1 { background: rgba(51, 204, 255, .14); color: var(--cyan-400); }
.tline__tag--2 { background: rgba(102, 153, 255, .16); color: #9db8ff; }
.tline__tag--3 { background: rgba(167, 139, 250, .16); color: #c7b5ff; }
@media (prefers-reduced-motion: reduce) {
  .tline { opacity: 1; transform: none; animation: none; }
  .tline mark { background-size: 100% 40%; animation: none; }
}

/* ---------- Sotto-navigazione di pagina ---------- */

.subnav {
  position: sticky;
  top: var(--header-h);
  z-index: 30;
  background: rgba(0, 0, 46, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.subnav ul {
  position: relative;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 12px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 32px), transparent);
  mask-image: linear-gradient(90deg, #000 calc(100% - 32px), transparent);
}
.subnav ul::-webkit-scrollbar { display: none; }
.subnav li:last-child { padding-right: 24px; }
.subnav a {
  display: block;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, .75);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .2s, color .2s, border-color .2s;
}
.subnav a:hover { border-color: rgba(255, 255, 255, .4); color: #fff; }
.subnav a.is-active { background: var(--grad-btn); border-color: transparent; color: var(--navy-950); }

/* ---------- Card ---------- */

.card {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.card h3 { margin-bottom: .4em; }
.card p { margin: 0; font-size: 1rem; color: var(--muted); }
.card--hover:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(102, 153, 255, .45); }

.glass {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
}

/* luce che segue il puntatore (impostata da main.js) */
@media (hover: hover) {
  .spot::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), rgba(102, 153, 255, .16), transparent 45%);
    opacity: 0;
    transition: opacity .35s;
    pointer-events: none;
  }
  .spot:hover::after { opacity: 1; }
}

.icon-badge {
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  margin-bottom: 20px;
  border-radius: 14px;
  background: var(--grad);
  color: var(--navy-950);
  box-shadow: 0 10px 24px -10px rgba(102, 153, 255, .8);
}
.icon-badge svg { width: 24px; height: 24px; }
.icon-badge--navy { background: var(--navy-900); color: var(--cyan-400); box-shadow: none; }

@media (max-width: 599px) {
  .card--feature {
    display: grid;
    grid-template-columns: 44px 1fr;
    column-gap: 16px;
    padding: 20px;
  }
  .card--feature .icon-badge { grid-row: span 2; width: 44px; height: 44px; margin: 2px 0 0; }
  .card--feature h3 { margin-bottom: .3em; font-size: 1.15rem; }
  .card--feature p { font-size: .95rem; }
}

/* ---------- Ciclo delle tre fasi ---------- */

.cycle {
  position: relative;
  display: grid;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 900px) {
  .cycle { grid-template-columns: repeat(3, 1fr); gap: 56px; padding-bottom: 72px; }
}
.cycle__node {
  --c: var(--phase-1);
  position: relative;
  padding: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.cycle__node:nth-child(2) { --c: var(--phase-2); --delay: .9s; }
.cycle__node:nth-child(3) { --c: var(--phase-3); --delay: 1.8s; }
.cycle__orb {
  position: relative;
  width: 52px; height: 52px;
  margin-bottom: 22px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff 0, var(--c) 38%, rgba(0, 0, 46, 0) 72%);
  box-shadow: 0 0 40px -2px var(--c);
}
.cycle__orb::after {
  content: "";
  position: absolute;
  inset: -6px;
  border: 1px solid var(--c);
  border-radius: 50%;
  animation: ping 2.7s ease-out infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes ping {
  0% { transform: scale(.85); opacity: .8; }
  100% { transform: scale(1.7); opacity: 0; }
}
.cycle__num { font-size: .75rem; font-weight: 600; letter-spacing: .14em; color: var(--c); }
.cycle__node h3 { margin: 6px 0 10px; font-size: 1.5rem; color: #fff; }
.cycle__node p { margin: 0; font-size: 1rem; color: var(--on-navy); }
/* connettori con una luce che scorre */
.cycle__link {
  position: absolute;
  overflow: hidden;
  background: linear-gradient(90deg, var(--c), rgba(255, 255, 255, .15));
}
.cycle__link::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff, transparent 70%);
  animation: travel 2.4s ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}
@media (min-width: 900px) {
  .cycle__link { top: 53px; right: -57px; width: 56px; height: 2px; }
  .cycle__link::after { top: -8px; left: -18px; }
  @keyframes travel { to { transform: translateX(80px); } }
}
@media (max-width: 899px) {
  .cycle__link { left: 53px; bottom: -29px; width: 2px; height: 28px; background: linear-gradient(180deg, var(--c), rgba(255, 255, 255, .15)); }
  .cycle__link::after { left: -8px; top: -18px; animation-name: travel-y; }
  @keyframes travel-y { to { transform: translateY(52px); } }
}
.cycle__return {
  display: none;
}
@media (min-width: 900px) {
  .cycle__return {
    position: absolute;
    left: 16.6%; right: 16.6%; bottom: 0;
    display: block;
    height: 72px;
  }
  .cycle__return svg { width: 100%; height: 56px; overflow: visible; }
  .cycle__return path {
    fill: none;
    stroke: url(#return-grad);
    stroke-width: 1.5;
    stroke-dasharray: 6 8;
    vector-effect: non-scaling-stroke;
    animation: dash 1.2s linear infinite;
  }
  .cycle__return span {
    position: absolute;
    left: 50%; bottom: 0;
    transform: translateX(-50%);
    padding: 4px 14px;
    border: 1px solid var(--glass-line);
    border-radius: 999px;
    background: var(--navy-950);
    font-size: .8rem;
    color: var(--on-navy-soft);
    white-space: nowrap;
  }
}
@keyframes dash { to { stroke-dashoffset: -28; } }
.cycle-note { margin-top: 28px; font-size: .95rem; color: var(--on-navy-soft); }
@media (min-width: 900px) { .cycle-note { display: none; } }

/* ---------- Fasi con segnali (pagina progetto) ---------- */

.phase-card {
  --c: var(--phase-1);
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.phase-card:nth-child(2) { --c: var(--phase-2); }
.phase-card:nth-child(3) { --c: var(--phase-3); }
.phase-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--c);
}
.phase-card__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-serif);
  font-size: 3rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--c);
}
.phase-card h3 { margin-bottom: .35em; }
.phase-card p { color: var(--muted); font-size: 1rem; }
.signal-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 0; padding: 0; list-style: none;}
.signal-list li {
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--bg-alt);
  font-size: .82rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.phase-card__label {
  display: block;
  margin-top: 18px;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Passi (come funziona) ---------- */

.steps { display: grid; gap: 20px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 900px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}
.step {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .3s, box-shadow .3s;
}
.step__num {
  display: block;
  margin-bottom: 18px;
  font-family: var(--font-serif);
  font-size: 3.4rem;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.step h3 { margin-bottom: .45em; }
.step p { margin: 0; font-size: 1rem; color: var(--muted); }

/* ---------- Tile metriche ---------- */

.tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); margin-top: 28px; }
.tile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-weight: 500;
  font-size: .98rem;
}
.tile svg { width: 22px; height: 22px; color: var(--blue-600); flex: none; }

/* ---------- Grafici (js/chart.js) ---------- */

.chart-card {
  position: relative;
  padding: clamp(16px, 3vw, 28px);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 300px at 100% 0%, rgba(102, 153, 255, .2), transparent 60%),
    radial-gradient(400px 260px at 0% 100%, rgba(51, 204, 255, .12), transparent 60%),
    var(--navy-950);
  box-shadow: var(--shadow-lg);
  color: var(--on-navy);
}
.chart-card__title { margin: 0 0 4px; font-size: 1.2rem; color: #fff; }
.chart-card__hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  font-size: .88rem;
  color: var(--on-navy-soft);
}
.chart-card__hint svg { width: 18px; height: 18px; flex: none; }

.chart {
  --c-left: #33ccff;
  --c-right: #a78bfa;
  --chart-text: rgba(214, 222, 255, .62);
  --chart-grid: rgba(255, 255, 255, .07);
  position: relative;
}
.chart__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 10px;
  font-size: .86rem;
  font-weight: 500;
  color: #fff;
}
.chart__legend:empty { display: none; }
.chart__key { display: inline-flex; align-items: center; gap: 8px; transition: opacity .25s; }
.chart__key i { width: 18px; height: 3px; border-radius: 3px; background: var(--c-left); box-shadow: 0 0 10px var(--c-left); }
.chart__key--right i { background: var(--c-right); box-shadow: 0 0 10px var(--c-right); }
.chart__key small { font-size: .78rem; font-weight: 400; color: var(--on-navy-soft); }
.chart--compare.is-right-only .chart__key--left,
.chart--compare.is-left-only .chart__key--right { opacity: .35; }

.chart__stage { position: relative; }
.chart--compare .chart__stage { cursor: ew-resize; touch-action: pan-y; -webkit-user-select: none; user-select: none; }
.chart__svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart__svg text { font-family: var(--font-sans); font-size: 11.5px; fill: var(--chart-text); }
.chart__axis--left text { fill: var(--c-left); }
.chart--single .chart__axis--left text { fill: var(--chart-text); }
.chart__axis--right text { fill: var(--c-right); }
.chart__xlabel { font-weight: 600; }
.chart__grid { stroke: var(--chart-grid); stroke-width: 1; }
.chart__grid--x { stroke-dasharray: 2 4; }
.chart__baseline { stroke: rgba(255, 255, 255, .22); }
.chart__guide { stroke-width: 1.2; stroke-dasharray: 5 5; opacity: .6; }
.chart__series--left .chart__guide { stroke: var(--c-left); }
.chart__series--right .chart__guide { stroke: var(--c-right); }
.chart__line {
  fill: none;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 2s cubic-bezier(.6, 0, .2, 1);
}
.chart__series--left .chart__line { stroke: var(--c-left); filter: drop-shadow(0 0 6px rgba(51, 204, 255, .55)); }
.chart__series--right .chart__line { stroke: var(--c-right); filter: drop-shadow(0 0 6px rgba(167, 139, 250, .55)); }
.chart__area { opacity: 0; transition: opacity 1.2s .8s; }
.chart__dot { fill: var(--c-left); opacity: 0; transition: opacity .6s 1.2s; }
.chart__series--right .chart__dot { fill: var(--c-right); }
.chart.is-drawn .chart__line { stroke-dashoffset: 0; }
.chart.is-drawn .chart__area,
.chart.is-drawn .chart__dot { opacity: 1; }

.chart__handle {
  position: absolute;
  width: 2px;
  margin-left: -1px;
  background: linear-gradient(var(--c-left), var(--c-right));
  outline: none;
  cursor: ew-resize;
}
.chart__handle::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 42px; height: 42px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300002e' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 6l-6 6 6 6M15 6l6 6-6 6'/%3E%3C/svg%3E") center / 22px no-repeat,
    var(--grad-btn);
  box-shadow: 0 0 0 5px rgba(255, 255, 255, .12), 0 0 30px rgba(102, 153, 255, .7);
  transition: transform .2s;
}
.chart__stage:hover .chart__handle::after,
.chart__handle:focus-visible::after { transform: translate(-50%, -50%) scale(1.08); }
.chart__handle:focus-visible::after { box-shadow: 0 0 0 4px #fff, 0 0 30px rgba(102, 153, 255, .7); }
@media (max-width: 559px) {
  .chart__handle::after { width: 36px; height: 36px; background-size: 18px, auto; }
}

.chart__cross {
  position: absolute;
  width: 1px;
  background: rgba(255, 255, 255, .35);
  pointer-events: none;
}
.chart__tip {
  position: absolute;
  z-index: 2;
  display: grid;
  gap: 2px;
  padding: 8px 12px;
  border: 1px solid var(--glass-line);
  border-radius: 10px;
  background: rgba(0, 0, 46, .92);
  font-size: .8rem;
  color: #fff;
  white-space: nowrap;
  pointer-events: none;
}
.chart__tip b { font-weight: 600; color: var(--on-navy-soft); }
.chart__tip-l { color: var(--c-left); }
.chart__tip-r { color: var(--c-right); }

/* ---------- Loghi istituzioni ---------- */

.partners {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 28px clamp(40px, 8vw, 96px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.partners img { width: auto; height: 76px; }
.partners li:last-child img { height: 50px; }
@media (max-width: 599px) {
  .partners { gap: 24px 36px; }
  .partners img { height: 58px; }
  .partners li:last-child img { height: 38px; }
}
.partners-title {
  margin-bottom: 28px;
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-align: center;
  color: var(--muted);
}

/* ---------- Banda call to action ---------- */

.cta-band {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: 28px;
  align-items: center;
  padding: clamp(32px, 6vw, 64px);
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--navy-950);
  color: var(--on-navy);
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: -40%;
  z-index: -1;
  background:
    radial-gradient(30% 50% at 85% 20%, rgba(102, 153, 255, .45), transparent 70%),
    radial-gradient(30% 50% at 10% 90%, rgba(51, 204, 255, .3), transparent 70%),
    radial-gradient(25% 40% at 55% 60%, rgba(167, 139, 250, .25), transparent 70%);
  animation: drift 18s ease-in-out infinite alternate;
}
.cta-band h2 { margin-bottom: .35em; color: #fff; }
.cta-band p { margin: 0; max-width: 34em; }
@media (min-width: 900px) {
  .cta-band { grid-template-columns: 1.4fr auto; }
}

/* ---------- Gruppo ---------- */

.team {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 900px) {
  .team { grid-template-columns: repeat(3, 1fr); }
}
.member {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  color: inherit;
  text-decoration: none;
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.member:hover { color: inherit; }
.member__photo { position: relative; aspect-ratio: 1; overflow: hidden; background: var(--bg-alt); }
.member__photo img { width: 100%; height: 100%; object-fit: cover; transition: filter .5s ease, transform .7s ease; }
.member__photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 46, .55));
  opacity: 0;
  transition: opacity .4s;
}
.member__body { display: flex; flex: 1; flex-direction: column; gap: 6px; padding: 22px 24px 24px; }
.member__name { margin: 0; font-size: 1.35rem; }
.member__desc { margin: 0; font-size: .97rem; line-height: 1.5; color: var(--muted); }
.member__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 16px;
}
.member__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--blue-600);
}
.member__more svg { width: 16px; height: 16px; transition: transform .2s; }
.member:hover .member__more svg { transform: translateX(4px); }
.member:focus-visible { outline-offset: 4px; }

@media (hover: hover) {
  .member__photo img { filter: grayscale(1); }
  .member:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(102, 153, 255, .45); }
  .member:hover .member__photo img { filter: grayscale(0); transform: scale(1.04); }
  .member:hover .member__photo::after { opacity: 1; }
}

@media (max-width: 479px) {
  .team { gap: 14px; }
  .member { flex-direction: row; align-items: stretch; }
  .member__photo { width: 112px; flex: none; aspect-ratio: auto; }
  .member__body { padding: 16px 18px; }
  .member__name { font-size: 1.15rem; }
  .member__desc { font-size: .9rem; }
  .member__foot { padding-top: 10px; }
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(0, 105, 158, .09);
  color: var(--blue-700);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.chip--lead { background: var(--navy-900); color: #fff; }
.chip--lead::before { background: var(--cyan-400); box-shadow: 0 0 8px var(--cyan-400); }
.chip--concept { background: rgba(102, 153, 255, .16); color: #2b46a8; }
.chip--dev { background: rgba(51, 204, 255, .18); color: #005a7a; }
.chip--quality { background: rgba(167, 139, 250, .18); color: #5b3fb5; }
.dark .chip, .page-hero .chip { background: rgba(255, 255, 255, .1); color: #fff; }
.page-hero .chip::before { background: var(--cyan-400); }

/* ---------- Pagina del singolo membro ---------- */

.profile { display: grid; gap: 32px; align-items: center; }
@media (min-width: 800px) {
  .profile { grid-template-columns: 300px 1fr; gap: 64px; }
}
.profile__photo {
  position: relative;
  width: min(100%, 300px);
  aspect-ratio: 1;
  padding: 3px;
  border-radius: 32px;
  background: var(--grad);
  box-shadow: 0 30px 70px -24px rgba(51, 204, 255, .55);
}
.profile__photo img { width: 100%; height: 100%; object-fit: cover; border-radius: 29px; }
@media (max-width: 799px) {
  .profile__photo { width: 168px; border-radius: 26px; }
  .profile__photo img { border-radius: 23px; }
}
.profile__role { margin-bottom: 18px; }
.profile h1 { margin-bottom: .3em; }

.bio h2 { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); }
.bio h2:not(:first-child) { margin-top: 1.8em; }
.placeholder {
  padding: 20px 24px;
  border: 2px dashed #cfc6b1;
  border-radius: var(--radius);
  background: repeating-linear-gradient(-45deg, transparent 0 12px, rgba(18, 20, 46, .02) 12px 24px);
  font-style: italic;
  color: var(--muted);
}

.pager { display: grid; gap: 14px; }
@media (min-width: 640px) {
  .pager { grid-template-columns: 1fr 1fr; }
}
.pager a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  text-decoration: none;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.pager a:hover { color: var(--ink); border-color: rgba(102, 153, 255, .5); box-shadow: var(--shadow); transform: translateY(-2px); }
.pager img { width: 52px; height: 52px; flex: none; border-radius: 14px; object-fit: cover; }
.pager small { display: block; font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.pager strong { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 500; }
.pager__next { flex-direction: row-reverse; text-align: right; }

/* ---------- Download ---------- */

.dl-card { display: flex; flex-direction: column; gap: 6px; }
.dl-card h2 { margin: 0; font-size: 1.6rem; }
.dl-card p { margin: 0 0 18px; color: var(--muted); font-size: 1rem; }
.dl-card .btn { margin-top: auto; }
.dl-card .icon-badge { width: 60px; height: 60px; border-radius: 18px; margin-bottom: 18px; }
.dl-card .icon-badge svg { width: 30px; height: 30px; }
.dl-meta { margin-top: 12px !important; font-size: .85rem !important; text-align: center; }

.note {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cyan-400);
  border-radius: var(--radius-sm);
  font-size: .98rem;
}
.note svg { width: 22px; height: 22px; flex: none; margin-top: 2px; color: var(--blue-600); }
.note p { margin: 0; color: var(--ink-soft); }

/* ---------- FAQ ---------- */

.faq { display: grid; gap: 12px; }
.faq details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
}
.faq details[open] { border-color: rgba(102, 153, 255, .45); box-shadow: var(--shadow-sm); }
.faq summary {
  position: relative;
  padding: 18px 56px 18px 22px;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  top: 50%; right: 24px;
  width: 9px; height: 9px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-25%) rotate(-135deg); }
.faq__body { padding: 0 22px 20px; color: var(--muted); }

/* ---------- Teoria: indice, progresso, prosa ---------- */

.progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  height: 3px;
  pointer-events: none;
}
.progress span {
  display: block;
  height: 100%;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

.doc {
  display: grid;
  gap: 28px;
  padding-block: clamp(32px, 5vw, 64px) var(--section-y);
}
@media (min-width: 1024px) {
  .doc { grid-template-columns: 230px minmax(0, 1fr); gap: 72px; }
}

.toc { font-size: .93rem; }
.toc ol { margin: 0; padding: 0; list-style: none; border-left: 1px solid var(--line); counter-reset: toc; }
.toc a {
  display: block;
  margin-left: -1px;
  padding: 7px 0 7px 16px;
  border-left: 2px solid transparent;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s, border-color .2s;
}
.toc a:hover { color: var(--ink); }
.toc a.is-active { border-left-color: var(--blue-400); color: var(--ink); font-weight: 600; }
.toc__title {
  margin-bottom: 12px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.toc summary { list-style: none; }
.toc summary::-webkit-details-marker { display: none; }

@media (min-width: 1024px) {
  .toc {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 64px);
    overflow-y: auto;
  }
  .toc summary { display: none; }
}

@media (max-width: 1023px) {
  .toc {
    position: sticky;
    top: var(--header-h);
    z-index: 20;
    margin-inline: calc(-1 * var(--gutter));
    margin-top: calc(-1 * clamp(32px, 5vw, 64px));
    background: rgba(250, 248, 243, .95);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .toc summary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px var(--gutter);
    cursor: pointer;
  }
  .toc summary .toc__title { margin: 0; flex: none; }
  .toc__current {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    color: var(--muted);
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .toc summary::after {
    content: "";
    flex: none;
    width: 8px; height: 8px;
    margin-right: 4px;
    border-right: 2px solid var(--muted);
    border-bottom: 2px solid var(--muted);
    transform: rotate(45deg) translateY(-2px);
    transition: transform .2s;
  }
  .toc[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
  .toc .toc__title--desktop { display: none; }
  .toc[open] ol {
    position: absolute;
    top: 100%; left: 0; right: 0;
    max-height: min(70vh, 520px);
    overflow-y: auto;
    padding: 8px var(--gutter) 16px;
    background: var(--bg);
    border-left: 0;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -24px rgba(18, 20, 46, .35);
  }
  .toc[open] a { padding: 11px 0; margin: 0; border-left: 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .toc[open] li:last-child a { border-bottom: 0; }
}

.prose { min-width: 0; max-width: 68ch; }
@media (min-width: 768px) {
  .prose { font-size: 1.125rem; line-height: 1.75; }
}
.prose > section + section {
  margin-top: clamp(48px, 7vw, 80px);
  padding-top: clamp(48px, 7vw, 80px);
  border-top: 1px solid var(--line);
}
.prose h2 { font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.4rem); margin-bottom: .6em; }
.prose h3 { margin: 1.8em 0 .6em; }
.section-num {
  display: block;
  margin-bottom: .2rem;
  font-family: var(--font-serif);
  font-size: 2.6rem;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.prose cite, .quote-source {
  display: block;
  font-family: var(--font-sans);
  font-size: .85rem;
  font-style: normal;
  color: var(--muted);
}
.prose ul.list { padding-left: 1.2em; }
.prose ul.list li { margin-bottom: .5em; }
.prose ul.list li::marker { color: var(--blue-400); }

.reading-note {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  max-width: 46em;
  margin-top: 28px;
  padding: 18px 22px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass);
  font-size: .96rem;
  color: var(--on-navy);
}
.reading-note svg { width: 24px; height: 24px; flex: none; margin-top: 2px; color: var(--cyan-400); }
.reading-note a { color: #fff; }

.callout {
  margin: 2em 0;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue-400);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  line-height: 1.7;
}
.callout__title {
  display: block;
  margin-bottom: .4em;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
}

/* Flusso delle tre fasi (teoria) */
.flow { display: grid; gap: 14px; margin: 2em 0; padding: 0; list-style: none; }
@media (min-width: 640px) {
  .flow { grid-template-columns: repeat(3, 1fr); gap: 22px; }
}
.flow li {
  --c: var(--phase-1);
  position: relative;
  padding: 18px 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--c);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  line-height: 1.5;
  color: var(--muted);
}
.flow li:nth-child(2) { --c: var(--phase-2); }
.flow li:nth-child(3) { --c: var(--phase-3); }
.flow strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
}
.flow li:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 1;
  left: 50%; bottom: -19px;
  width: 22px; height: 22px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236699ff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 5v14M6 13l6 6 6-6'/%3E%3C/svg%3E") center / 14px no-repeat,
    var(--bg);
  transform: translateX(-50%);
}
@media (min-width: 640px) {
  .flow li:not(:last-child)::after {
    left: auto; bottom: auto;
    top: 50%; right: -23px;
    transform: translateY(-50%) rotate(-90deg);
  }
}

/* Segnali linguistici per fase */
.signals { display: grid; gap: 14px; margin: 1.5em 0 0; padding: 0; list-style: none; }
@media (min-width: 720px) { .signals { grid-template-columns: repeat(3, 1fr); } }
.signals li {
  --c: var(--phase-1);
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  line-height: 1.55;
  color: var(--muted);
}
.signals li:nth-child(2) { --c: var(--phase-2); }
.signals li:nth-child(3) { --c: var(--phase-3); }
.signals strong {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 1rem;
  color: var(--ink);
}
.signals strong::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--c); box-shadow: 0 0 8px var(--c); }

/* Esempi alta/bassa AR */
.quote-compare { display: grid; gap: 16px; margin: 2em 0 0; }
@media (min-width: 720px) { .quote-compare { grid-template-columns: 1fr 1fr; } }
.quote-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--blue-400);
  border-radius: var(--radius);
  font-size: 1rem;
  line-height: 1.6;
}
.quote-card--low { border-top-color: #b5ae9e; }
.quote-card blockquote {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  font-style: italic;
  color: var(--ink-soft);
}
.quote-card blockquote p { margin: 0 0 .6em; }
.quote-card > p { margin: 0; color: var(--muted); font-size: .95rem; }
.badge {
  align-self: flex-start;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(102, 153, 255, .14);
  color: #2b46a8;
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.quote-card--low .badge { background: rgba(90, 95, 115, .1); color: var(--muted); }

/* Statistiche */
.stats {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  margin: 2em 0;
  padding: 0;
  list-style: none;
}
.stat {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border-radius: var(--radius);
  background:
    radial-gradient(240px 160px at 100% 0%, rgba(102, 153, 255, .35), transparent 70%),
    var(--navy-950);
  color: var(--on-navy);
  font-size: .9rem;
  line-height: 1.45;
}
.stat strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 500;
  line-height: 1.1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 1.25em 0 1.5em; padding: 0; list-style: none; }
.chips li {
  padding: 6px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 500;
}

/* Quattro domini della TCM */
.domains {
  display: grid;
  grid-template-columns: 28px 1fr 1fr;
  gap: 10px;
  margin: 2em 0;
  font-size: .95rem;
  line-height: 1.5;
}
.domains__axis {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.domains__axis--row { writing-mode: vertical-rl; transform: rotate(180deg); }
.domain {
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--muted);
}
.domain--sym { background: linear-gradient(160deg, rgba(102, 153, 255, .14), #fff 60%); }
.domain--sub { background: linear-gradient(160deg, rgba(167, 139, 250, .14), #fff 60%); }
.domain h4 { margin: 0 0 6px; font-size: 1.05rem; color: var(--ink); }
@media (max-width: 559px) {
  .domains { grid-template-columns: 1fr; }
  .domains__axis { display: none; }
}

/* Struttura narrativa */
.narrative { display: grid; gap: 10px; margin: 1.5em 0 2em; padding: 0; list-style: none; counter-reset: n; }
@media (min-width: 720px) { .narrative { grid-template-columns: repeat(4, 1fr); } }
.narrative li {
  position: relative;
  padding: 16px 16px 16px 58px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: .92rem;
  line-height: 1.45;
  color: var(--muted);
  counter-increment: n;
}
@media (min-width: 720px) { .narrative li { padding: 52px 16px 16px; } }
.narrative li::before {
  content: counter(n);
  position: absolute;
  top: 15px; left: 16px;
  display: grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--grad-btn);
  color: var(--navy-950);
  font-size: .85rem;
  font-weight: 700;
}
.narrative strong { display: block; color: var(--ink); }

/* Esperimento Kiki/Bouba (forme disegnate in SVG) */
.kiki {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin: 2em 0;
  padding: clamp(20px, 4vw, 32px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(300px 200px at 20% 30%, rgba(51, 204, 255, .18), transparent 70%),
    radial-gradient(300px 200px at 80% 70%, rgba(167, 139, 250, .2), transparent 70%),
    var(--navy-950);
  color: var(--on-navy);
  text-align: center;
}
.kiki__q { margin: 0 0 20px; font-family: var(--font-serif); font-size: 1.25rem; color: #fff; }
.kiki__shapes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: center; }
.kiki__shape svg { width: 100%; max-width: 220px; height: auto; margin: 0 auto; overflow: visible; }
.kiki__shape path { stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.kiki__shape--sharp path { fill: rgba(51, 204, 255, .12); stroke: var(--cyan-400); }
.kiki__shape--round path { fill: rgba(167, 139, 250, .14); stroke: var(--violet-400); }
.kiki__shape--sharp svg { animation: jitter 2.6s ease-in-out infinite; }
.kiki__shape--round svg { animation: breathe 4.5s ease-in-out infinite; }
@keyframes jitter {
  0%, 100% { transform: rotate(0); }
  20% { transform: rotate(-4deg); }
  40% { transform: rotate(3deg); }
  60% { transform: rotate(-2deg); }
}
@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}
.kiki__name {
  display: block;
  min-height: 1.4em;
  margin-top: 14px;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: #fff;
  opacity: 0;
  transform: translateY(10px) scale(.9);
  transition: opacity .5s, transform .5s cubic-bezier(.2, .9, .3, 1.4);
}
.kiki__shape--round .kiki__name { transition-delay: .15s; }
.kiki.is-revealed .kiki__name { opacity: 1; transform: none; }
.kiki__btn { margin-top: 22px; }
.kiki__answer {
  max-width: 34em;
  margin: 16px auto 0;
  font-size: .95rem;
  color: var(--on-navy);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-950);
  border-top: 1px solid rgba(255, 255, 255, .06);
  color: var(--on-navy-soft);
  font-size: .92rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 28px;
}
.footer-inner p { margin: 0; }
.site-footer a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: #fff;
  text-decoration: none;
}
.site-footer a svg { width: 18px; height: 18px; color: var(--cyan-400); }
.site-footer a:hover { color: var(--cyan-400); }

/* ---------- Torna su ---------- */

.to-top {
  position: fixed;
  right: 16px; bottom: 16px;
  z-index: 40;
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--grad-btn);
  color: var(--navy-950);
  box-shadow: 0 12px 28px -10px rgba(51, 204, 255, .8);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s, visibility .25s;
}
.to-top svg { width: 22px; height: 22px; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }

/* ---------- Animazioni di comparsa ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2, .8, .2, 1);
  transition-delay: var(--d, 0s);
}
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- 404 ---------- */

.error-page {
  display: grid;
  place-items: center;
  min-height: calc(100vh - var(--header-h) - 90px);
  padding-block: var(--section-y);
  text-align: center;
}
.error-page .code {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(5rem, 3rem + 10vw, 9rem);
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.error-page .btn-row { justify-content: center; margin-top: 28px; }

/* ---------- Stampa ---------- */

@media print {
  .site-header, .site-footer, .toc, .progress, .to-top, .subnav, .btn, .cta-band, .waves { display: none !important; }
  body { background: #fff; font-size: 11pt; }
  .hero, .page-hero { background: none; color: #000; }
  .hero::before, .hero::after, .page-hero::before, .page-hero::after { display: none; }
  .page-hero h1, .page-hero .lead { color: #000; }
  .doc { display: block; padding: 0; }
  .prose { max-width: none; }
  a { color: #000; }
}