/* ══════════════════════════════════════════════════════
   PRSS — Partito per il Rinnovamento Sociale e la Sostenibilità
   Main stylesheet · 2026
   ══════════════════════════════════════════════════════ */

/* ── Variables ──────────────────────────────────────── */
:root {
  --azzurro:  #1a6fa8;
  --rosso:    #c0392b;
  --verde:    #277a3f;
  --ink:      #1c1c2e;
  --paper:    #f5f0e8;
  --mid:      #6b7280;
  --light:    #e8e2d8;
  --white:    #ffffff;
  --az-light: #dbeaf5;
  --ro-light: #fae0dc;
  --ve-light: #d4edda;

  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans:  'Barlow', -apple-system, system-ui, sans-serif;

  --shadow-sm: 0 1px 3px rgba(28,28,46,.08), 0 1px 2px rgba(28,28,46,.06);
  --shadow-md: 0 4px 16px rgba(28,28,46,.10), 0 2px 8px rgba(28,28,46,.06);
  --shadow-lg: 0 12px 36px rgba(28,28,46,.14), 0 4px 16px rgba(28,28,46,.08);

  --radius: 6px;
  --radius-lg: 12px;
  --transition: 0.22s cubic-bezier(.22,1,.36,1);
}

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Typography ─────────────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.2; }
p { line-height: 1.7; }

/* ── Layout helpers ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-header {
  margin-bottom: 52px;
  max-width: 640px;
}
.tri-rule {
  display: flex;
  gap: 5px;
  margin-bottom: 16px;
}
.tri-rule span {
  height: 3px;
  width: 28px;
  border-radius: 2px;
  display: block;
}
.tri-rule .az { background: var(--azzurro); }
.tri-rule .ro { background: var(--rosso); }
.tri-rule .ve { background: var(--verde); }

/* ══════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}
#navbar.scrolled {
  background: rgba(245,240,232,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-logo-mark {
  width: 32px;
  height: 32px;
}
.nav-wordmark {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 4px;
  color: var(--ink);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .5px;
  color: var(--ink);
  opacity: .8;
  transition: opacity var(--transition);
}
.nav-links a:hover { opacity: 1; }
.nav-links .nav-cta {
  opacity: 1;
  background: var(--ink);
  color: white;
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .5px;
  transition: background var(--transition), transform var(--transition);
}
.nav-links .nav-cta:hover {
  background: var(--azzurro);
  transform: translateY(-1px);
}
.nav-hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: var(--transition); }

/* ══════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════ */
#hero {
  min-height: 100vh;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 100px 24px 60px;
  overflow: hidden;
}
/* Top & bottom tri-color bars */
#hero::before, #hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 5px;
  background: linear-gradient(
    to right,
    var(--azzurro) 33.3%,
    var(--rosso)   33.3% 66.6%,
    var(--verde)   66.6%
  );
}
#hero::before { top: 0; }
#hero::after  { bottom: 0; }

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  animation: heroRise 1s cubic-bezier(.22,1,.36,1) both;
}
@keyframes heroRise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-logo { margin-bottom: 8px; }
.hero-logo svg { width: 200px; height: 210px; overflow: visible; }

/* Canopy breathing animation */
.hero-logo .canopy-lobe {
  animation: breathe 5s ease-in-out infinite;
  transform-origin: center;
}
.hero-logo .canopy-lobe:nth-child(1) { animation-delay: 0s; }
.hero-logo .canopy-lobe:nth-child(2) { animation-delay: 1.6s; }
.hero-logo .canopy-lobe:nth-child(3) { animation-delay: 3.2s; }
@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.025); }
}
/* Roots fade-in animation */
.hero-logo .root-path {
  animation: rootGrow 2s ease-out both;
}
@keyframes rootGrow {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.hero-acronym {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(60px, 10vw, 88px);
  letter-spacing: 16px;
  color: var(--ink);
  line-height: 1;
  margin-right: -16px;
}
.hero-rule {
  display: flex;
  gap: 6px;
  align-items: center;
}
.hero-rule span {
  height: 3px;
  width: 30px;
  border-radius: 2px;
  display: block;
}
.hero-rule .az { background: var(--azzurro); }
.hero-rule .ro { background: var(--rosso); }
.hero-rule .ve { background: var(--verde); }

.hero-name {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  color: var(--mid);
  text-align: center;
  line-height: 2;
}
.hero-slogan {
  font-family: var(--font-sans);
  font-weight: 300;
  font-style: italic;
  font-size: 15px;
  color: var(--mid);
  margin-top: -6px;
}
.hero-legend {
  display: flex;
  gap: 24px;
  margin-top: 4px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
}
.legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-label {
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--mid);
}
.hero-scroll {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: .4;
  transition: opacity var(--transition);
  animation: scrollBounce 2s ease-in-out 1.5s infinite;
  color: var(--ink);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.hero-scroll:hover { opacity: .7; }
.hero-scroll svg { transform: rotate(90deg); }
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ══════════════════════════════════════════════════════
   INTRO SECTION
   ══════════════════════════════════════════════════════ */
#manifesto-intro {
  background: var(--white);
  padding: 80px 0;
  border-bottom: 1px solid var(--light);
}
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}
.intro-label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--azzurro);
  margin-bottom: 12px;
  display: block;
}
.intro-heading {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}
.intro-text {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.85;
  color: #3a3a4e;
  margin-bottom: 16px;
}
.intro-text strong {
  font-weight: 600;
  color: var(--ink);
}
.intro-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .5px;
  color: var(--azzurro);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), gap var(--transition);
}
.intro-cta:hover {
  border-color: var(--azzurro);
  gap: 12px;
}

/* ══════════════════════════════════════════════════════
   PROGRAMMA / ROADMAP SECTION
   ══════════════════════════════════════════════════════ */
#programma {
  background: var(--paper);
  padding: 80px 0 100px;
}
#programma .section-header h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}
#programma .section-header p {
  font-size: 15px;
  font-weight: 300;
  color: var(--mid);
  line-height: 1.7;
}

/* ══════════════════════════════════════════════════════
   TIMELINE ROADMAP
   ══════════════════════════════════════════════════════ */
.timeline {
  position: relative;
  padding: 20px 0 40px;
}
/* Central tri-colour line */
.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--azzurro) 0%,
    var(--azzurro) 33%,
    var(--rosso)   33%,
    var(--rosso)   66%,
    var(--verde)   66%,
    var(--verde)   100%
  );
  z-index: 0;
}

/* ── Intro item: full-width banner above timeline ── */
.tl-intro {
  position: relative;
  z-index: 1;
  margin-bottom: 48px;
}
.tl-intro-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--verde);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 24px;
  text-decoration: none;
  color: var(--ink);
  transition: box-shadow var(--transition), transform var(--transition);
}
.tl-intro-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.tl-intro-icon {
  width: 64px; height: 64px;
  flex-shrink: 0;
}
.tl-intro-body { flex: 1; }
.tl-intro-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--verde);
  display: block;
  margin-bottom: 6px;
}
.tl-intro-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
}
.tl-intro-principle {
  font-size: 14px;
  font-style: italic;
  color: var(--mid);
  line-height: 1.65;
  margin-bottom: 14px;
}
.tl-intro-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--verde);
  transition: gap var(--transition);
}
.tl-intro-card:hover .tl-intro-cta { gap: 10px; }

/* Connector from intro card to first node */
.tl-intro::after {
  content: '';
  display: block;
  width: 2px;
  height: 32px;
  background: var(--azzurro);
  margin: 0 auto;
}

/* ── Regular timeline items ── */
.tl-item {
  display: flex;
  align-items: flex-start;
  position: relative;
  z-index: 1;
  margin-bottom: 32px;
  min-height: 60px;
}

/* Content box (shared) */
.tl-content {
  width: calc(50% - 52px);
  flex-shrink: 0;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 22px 22px 18px;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--ink);
  display: block;
  transition: box-shadow var(--transition), transform var(--transition);
  border-top: 3px solid transparent;
}
.tl-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
[data-color="azzurro"] .tl-content { border-top-color: var(--azzurro); }
[data-color="rosso"]   .tl-content { border-top-color: var(--rosso); }
[data-color="verde"]   .tl-content { border-top-color: var(--verde); }

.tl-content.tl-left  { margin-right: 52px; text-align: right; }
.tl-content.tl-right { margin-left: 52px; }

.tl-card-num {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 5px;
}
[data-color="azzurro"] .tl-card-num { color: var(--azzurro); }
[data-color="rosso"]   .tl-card-num { color: var(--rosso); }
[data-color="verde"]   .tl-card-num { color: var(--verde); }

.tl-card-title {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
  color: var(--ink);
}
.tl-card-principle {
  font-size: 12px;
  font-style: italic;
  color: var(--mid);
  line-height: 1.6;
  margin-bottom: 14px;
}
.tl-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .5px;
  text-transform: uppercase;
  transition: gap var(--transition);
}
[data-color="azzurro"] .tl-card-cta { color: var(--azzurro); }
[data-color="rosso"]   .tl-card-cta { color: var(--rosso); }
[data-color="verde"]   .tl-card-cta { color: var(--verde); }
.tl-content:hover .tl-card-cta { gap: 9px; }

/* Right-align CTA for left cards */
.tl-content.tl-left .tl-card-cta {
  flex-direction: row-reverse;
}
.tl-content.tl-left .tl-card-cta svg {
  transform: scaleX(-1);
}

/* Node dot on the central line */
.tl-node {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  top: 14px;
  box-shadow: 0 0 0 3px var(--paper), var(--shadow-sm);
  border: 2px solid var(--light);
  transition: border-color var(--transition), box-shadow var(--transition);
  z-index: 2;
}
[data-color="azzurro"] .tl-node { border-color: var(--azzurro); }
[data-color="rosso"]   .tl-node { border-color: var(--rosso); }
[data-color="verde"]   .tl-node { border-color: var(--verde); }
.tl-item:hover .tl-node {
  box-shadow: 0 0 0 5px var(--paper), var(--shadow-md);
}
.tl-node svg { width: 28px; height: 28px; }

/* Spacer (empty half) */
.tl-spacer {
  width: calc(50% - 52px);
  flex-shrink: 0;
}

/* Nota: full-width at bottom */
.tl-nota {
  position: relative;
  z-index: 1;
  margin-top: 16px;
}
.tl-nota::before {
  content: '';
  display: block;
  width: 2px;
  height: 32px;
  background: var(--verde);
  margin: 0 auto;
}
.tl-nota-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border-right: 4px solid var(--rosso);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 20px;
  text-decoration: none;
  color: var(--ink);
  transition: box-shadow var(--transition), transform var(--transition);
}
.tl-nota-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.tl-nota-icon { width: 48px; height: 48px; flex-shrink: 0; }
.tl-nota-body {}
.tl-nota-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--rosso);
  display: block;
  margin-bottom: 4px;
}
.tl-nota-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.tl-nota-principle {
  font-size: 13px;
  font-style: italic;
  color: var(--mid);
}

/* ── Timeline responsive ── */
@media (max-width: 768px) {
  .timeline::before {
    left: 27px;
    transform: none;
  }
  .tl-item {
    flex-direction: row;
    align-items: flex-start;
    padding-left: 0;
  }
  .tl-node {
    width: 48px; height: 48px;
    flex-shrink: 0;
    top: 0;
    order: -1;
    margin-right: 16px;
  }
  .tl-node svg { width: 22px; height: 22px; }
  .tl-spacer { display: none; }
  .tl-content {
    width: 100%;
    margin: 0 !important;
    text-align: left !important;
  }
  .tl-content.tl-left .tl-card-cta {
    flex-direction: row;
  }
  .tl-content.tl-left .tl-card-cta svg {
    transform: none;
  }
  .tl-intro-card { flex-direction: column; gap: 16px; }
  .tl-intro::after { margin: 0 0 0 23px; }
  .tl-nota::before { margin: 0 0 0 23px; }
}

/* ══════════════════════════════════════════════════════
   NUMBERS SECTION (stats bar)
   ══════════════════════════════════════════════════════ */
#numeri {
  background: var(--ink);
  padding: 56px 0;
}
.numeri-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.numero-item {
  text-align: center;
}
.numero-value {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 900;
  color: var(--paper);
  line-height: 1;
  margin-bottom: 6px;
}
.numero-value span {
  font-size: 22px;
}
.numero-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(245,240,232,.45);
  line-height: 1.5;
}
.numero-color-az { color: var(--azzurro) !important; }
.numero-color-ro { color: #e86955 !important; }
.numero-color-ve { color: #4caf72 !important; }

/* ══════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════ */
footer {
  background: var(--ink);
  border-top: 1px solid rgba(255,255,255,.05);
  padding: 48px 0 36px;
  color: rgba(245,240,232,.6);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: start;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-wordmark {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 26px;
  letter-spacing: 6px;
  color: var(--paper);
}
.footer-tagline {
  font-size: 12px;
  font-style: italic;
  opacity: .6;
}
.footer-rule {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}
.footer-rule span { display: block; height: 2px; width: 20px; border-radius: 2px; }
.footer-rule .az { background: var(--azzurro); }
.footer-rule .ro { background: var(--rosso); }
.footer-rule .ve { background: var(--verde); }

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: right;
}
.footer-links a {
  font-size: 13px;
  color: rgba(245,240,232,.55);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--paper); }
.footer-copy {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255,255,255,.07);
  padding-top: 20px;
  font-size: 11px;
  letter-spacing: .5px;
  opacity: .35;
}

/* ══════════════════════════════════════════════════════
   CHAPTER PAGE (shared layout for cap/*.html)
   ══════════════════════════════════════════════════════ */
.cap-hero {
  background: var(--paper);
  padding: 100px 0 60px;
  border-bottom: 1px solid var(--light);
}
.cap-hero-inner {
  display: flex;
  align-items: center;
  gap: 32px;
}
.cap-hero-icon {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
}
.cap-hero-meta { flex: 1; }
.cap-num-badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}
.cap-hero-title {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}
.cap-hero-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  margin-top: 14px;
  background: linear-gradient(to right, var(--azzurro) 33%, var(--rosso) 33% 66%, var(--verde) 66%);
}
.cap-principio {
  font-size: 15px;
  font-style: italic;
  color: var(--mid);
  line-height: 1.7;
  border-left: 3px solid var(--azzurro);
  padding-left: 16px;
  margin-top: 12px;
}

.cap-content {
  max-width: 780px;
  margin: 60px auto;
  padding: 0 24px;
}
.cap-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 10px;
}
.cap-content h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--mid);
  margin: 24px 0 8px;
}
.cap-content p { margin-bottom: 12px; font-size: 15px; line-height: 1.8; }
.cap-content ul, .cap-content ol {
  margin: 8px 0 16px 1.4em;
}
.cap-content li { margin-bottom: 7px; font-size: 15px; line-height: 1.7; }

/* References section */
.cap-refs {
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-top: 48px;
}
.cap-refs h3 {
  font-size: 18px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.cap-refs-list { display: flex; flex-direction: column; gap: 12px; }
.ref-item {
  background: white;
  border-radius: var(--radius);
  padding: 14px 18px;
  border-left: 3px solid var(--light);
  transition: border-color var(--transition);
}
.ref-item:hover { border-left-color: var(--azzurro); }
.ref-item a { font-size: 14px; font-weight: 600; color: var(--azzurro); }
.ref-item p  { font-size: 12px; color: var(--mid); margin: 3px 0 0; line-height: 1.5; }

/* ══════════════════════════════════════════════════════
   SCROLL ANIMATIONS (JS adds .is-visible)
   ══════════════════════════════════════════════════════ */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up:nth-child(2) { transition-delay: .08s; }
.fade-up:nth-child(3) { transition-delay: .16s; }
.fade-up:nth-child(4) { transition-delay: .24s; }
.fade-up:nth-child(5) { transition-delay: .32s; }
.fade-up:nth-child(6) { transition-delay: .40s; }

/* ══════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .chapters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .chapter-card.card-nota {
    grid-column: 1 / -1;
  }
  .numeri-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .chapter-card.card-intro {
    flex-direction: column;
    gap: 16px;
  }
  .chapter-card.card-nota {
    grid-column: span 1;
  }
}

@media (max-width: 640px) {
  .chapters-grid {
    grid-template-columns: 1fr;
  }
  .chapter-card.card-intro {
    grid-column: 1;
  }
  .chapter-card.card-nota {
    grid-column: 1;
  }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 64px 0 0 0;
    background: rgba(245,240,232,.98);
    backdrop-filter: blur(12px);
    padding: 40px 24px;
    gap: 24px;
    align-items: flex-start;
    z-index: 99;
  }
  .nav-links.open a { font-size: 22px; }
  .nav-hamburger { display: flex; }
  .numeri-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { text-align: left; }
  .hero-acronym { letter-spacing: 10px; }
}


/* ══════════════════════════════════════════════════════
   CHAPTER PAGES
   ══════════════════════════════════════════════════════ */

/* ── Chapter hero / header ── */
.chap-hero {
  padding: 100px 0 52px;
  background: var(--paper);
  position: relative;
  overflow: hidden;
}
.chap-hero::before {
  content: '';
  display: block;
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(to right, var(--azzurro) 33%, var(--rosso) 33% 66%, var(--verde) 66%);
}
.chap-hero[data-color="azzurro"]::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0; width: 5px;
  background: var(--azzurro);
}
.chap-hero[data-color="rosso"]::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0; width: 5px;
  background: var(--rosso);
}
.chap-hero[data-color="verde"]::after {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0; width: 5px;
  background: var(--verde);
}

.chap-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 32px;
  transition: color var(--transition);
}
.chap-back:hover { color: var(--ink); }

.chap-header {
  display: flex;
  align-items: flex-start;
  gap: 28px;
}
.chap-icon-wrap {
  width: 88px;
  height: 88px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.chap-icon-wrap svg { width: 52px; height: 52px; }

.chap-meta { flex: 1; }
.chap-num {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
[data-color="azzurro"] .chap-num { color: var(--azzurro); }
[data-color="rosso"]   .chap-num { color: var(--rosso); }
[data-color="verde"]   .chap-num { color: var(--verde); }

.chap-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 14px;
}
.chap-principle {
  font-size: 17px;
  font-style: italic;
  color: var(--mid);
  line-height: 1.65;
  max-width: 680px;
  padding: 16px 20px;
  border-left: 3px solid;
  background: var(--white);
  border-radius: 0 var(--radius) var(--radius) 0;
}
[data-color="azzurro"] .chap-principle { border-color: var(--azzurro); }
[data-color="rosso"]   .chap-principle { border-color: var(--rosso); }
[data-color="verde"]   .chap-principle { border-color: var(--verde); }

/* ── Chapter main layout ── */
.chap-main {
  padding: 60px 0 80px;
}
.chap-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: flex-start;
}

/* ── Article prose ── */
.chap-article {
  min-width: 0;
}
.chap-article h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 36px 0 12px;
}
.chap-article h3:first-child { margin-top: 0; }
.chap-article h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--mid);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 28px 0 8px;
}
.chap-article p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 18px;
  color: var(--ink);
}
.chap-article strong { font-weight: 700; color: var(--ink); }
.chap-article em { font-style: italic; }
.chap-article ul, .chap-article ol {
  padding-left: 24px;
  margin-bottom: 20px;
}
.chap-article li {
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 8px;
  list-style: disc;
}
.chap-article ol li { list-style: decimal; }
.chap-article blockquote {
  border-left: 3px solid var(--light);
  padding: 12px 20px;
  margin: 24px 0;
  font-style: italic;
  color: var(--mid);
  background: var(--paper);
  border-radius: 0 var(--radius) var(--radius) 0;
}
/* Tables (for piano decennale) */
.chap-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 24px 0;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.chap-article th {
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  padding: 10px 14px;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 13px;
}
.chap-article td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--light);
  vertical-align: top;
  line-height: 1.5;
}
.chap-article tr:last-child td { border-bottom: none; }
.chap-article tr:nth-child(even) td { background: var(--paper); }

/* ── Sidebar references ── */
.chap-sidebar { min-width: 0; }

.ref-box {
  background: var(--white);
  border: 1px solid var(--light);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.ref-box-heading {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--light);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ref-box-heading svg { flex-shrink: 0; }

.ref-list { display: flex; flex-direction: column; gap: 14px; }
.ref-item { display: flex; flex-direction: column; gap: 3px; }
.ref-link {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--azzurro);
  line-height: 1.4;
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ref-link:hover { color: var(--ink); text-decoration: underline; }
.ref-source {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--mid);
}
.ref-desc {
  font-size: 12.5px;
  color: var(--mid);
  line-height: 1.5;
}

/* ── Download box ── */
.download-box {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 24px;
  text-align: center;
}
.download-box p {
  font-size: 13px;
  margin-bottom: 12px;
  opacity: 0.75;
  line-height: 1.5;
}
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--paper);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius);
  transition: background var(--transition);
  text-decoration: none;
}
.download-btn:hover { background: var(--white); }

/* ── Chapter nav (prev / next) ── */
.chap-nav-bar {
  border-top: 1px solid var(--light);
  padding: 32px 0;
  background: var(--paper);
}
.chap-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.chap-nav-link {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 20px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--light);
  transition: box-shadow var(--transition), border-color var(--transition);
  max-width: 260px;
  text-decoration: none;
  color: var(--ink);
}
.chap-nav-link:hover { box-shadow: var(--shadow-md); border-color: var(--azzurro); }
.chap-nav-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--mid);
}
.chap-nav-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}
.chap-nav-link.chap-nav-next { text-align: right; }
.chap-nav-placeholder { flex: 1; }

/* ── Chapter page responsive ── */
@media (max-width: 900px) {
  .chap-layout {
    grid-template-columns: 1fr;
  }
  .chap-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .chap-sidebar .download-box {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .chap-header { flex-direction: column; gap: 16px; }
  .chap-icon-wrap { width: 68px; height: 68px; }
  .chap-icon-wrap svg { width: 40px; height: 40px; }
  .chap-sidebar { grid-template-columns: 1fr; }
  .chap-nav-inner { flex-direction: column; align-items: stretch; }
  .chap-nav-link { max-width: 100%; }
  .chap-nav-link.chap-nav-next { text-align: left; }
}

/* ══════════════════════════════════════════════════════
   CONTACT PAGE
   ══════════════════════════════════════════════════════ */
.contact-hero {
  padding: 100px 0 52px;
  background: var(--paper);
}
.contact-hero::before {
  content: '';
  display: block;
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(to right, var(--azzurro) 33%, var(--rosso) 33% 66%, var(--verde) 66%);
}
.contact-hero { position: relative; overflow: hidden; }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: flex-start;
  padding: 60px 0 80px;
}

.contact-intro h2 {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--ink);
}
.contact-intro p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mid);
  margin-bottom: 14px;
}
.contact-direct {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid var(--light);
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 600;
  color: var(--azzurro);
  text-decoration: none;
  transition: box-shadow var(--transition);
}
.contact-direct:hover { box-shadow: var(--shadow-md); }
.contact-direct svg { flex-shrink: 0; }

/* Contact form */
.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 7px;
}
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--light);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--azzurro);
  box-shadow: 0 0 0 3px rgba(26,111,168,.12);
}
.form-textarea { resize: vertical; min-height: 130px; }
.form-submit {
  width: 100%;
  padding: 14px 24px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  border: none;
}
.form-submit:hover {
  background: var(--azzurro);
  transform: translateY(-1px);
}
.form-note {
  font-size: 12px;
  color: var(--mid);
  margin-top: 12px;
  text-align: center;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

/* ── Costo/Beneficio label (PRSS + Roma) ────────────────────────────────── */
.tl-card-cost {
  font-size: 11px;
  font-weight: 600;
  color: var(--mid);
  margin: 8px 0 6px;
  padding: 5px 9px;
  background: var(--paper);
  border-radius: 4px;
  line-height: 1.55;
  letter-spacing: 0.1px;
}

/* ── Roma card extensions ───────────────────────────────────────────────── */
.tl-card-desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--mid);
  margin-top: 10px;
}
.tl-card-refs {
  list-style: none;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--light);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tl-card-refs li {
  font-size: 11px;
  color: var(--mid);
  line-height: 1.55;
}
.tl-card-refs li strong {
  color: var(--ink);
  font-weight: 700;
}

/* ── Roma Hero ──────────────────────────────────────────────────────────── */
.roma-hero {
  padding: 80px 0 60px;
  background: var(--paper);
  border-bottom: 1px solid var(--light);
}
.roma-hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 12px;
}
.roma-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 900;
  color: var(--ink);
  line-height: 1.05;
  margin-bottom: 20px;
}
.roma-hero-sub {
  font-size: 18px;
  color: var(--mid);
  line-height: 1.65;
  max-width: 600px;
  margin-bottom: 32px;
}
.roma-hero-pdf, .hero-pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--azzurro);
  color: white;
  border-radius: var(--radius-lg);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity var(--transition), box-shadow var(--transition);
}
.roma-hero-pdf:hover, .hero-pdf-btn:hover { opacity: .88; box-shadow: var(--shadow-md); }

/* ── Roma intro section ─────────────────────────────────────────────────── */
.roma-intro-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--light);
}
.roma-intro-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 60px;
  align-items: start;
}
.roma-intro-block h2 {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}
.roma-intro-block p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--mid);
  margin-bottom: 14px;
}
.roma-intro-stats {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.roma-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  background: var(--paper);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--azzurro);
}
.roma-stat-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 900;
  color: var(--azzurro);
  line-height: 1;
}
.roma-stat-label {
  font-size: 12px;
  color: var(--mid);
  line-height: 1.4;
}
@media (max-width: 700px) {
  .roma-intro-grid { grid-template-columns: 1fr; }
}


/* ── Costo/beneficio nell'hero dei capitoli ─────────────────────────────── */
.chap-cost {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--white);
  border-radius: var(--radius);
  border-left: 3px solid;
}
[data-color="azzurro"] .chap-cost { border-color: var(--azzurro); background: var(--az-light); }
[data-color="rosso"]   .chap-cost { border-color: var(--rosso);   background: var(--ro-light); }
[data-color="verde"]   .chap-cost { border-color: var(--verde);   background: var(--ve-light); }

@media (max-width: 600px) {
  .chap-cost { font-size: 11px; padding: 7px 11px; }
}


/* ── Nota economica ─────────────────────────────────────────────────────── */
.econ-box { background: var(--paper); }
.econ-note p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mid);
  margin: 0 0 9px;
}
.econ-note p:last-child { margin-bottom: 0; }
.econ-note strong { color: var(--ink); }
.econ-caveat {
  padding: 8px 10px;
  background: var(--white);
  border-left: 2px solid var(--rosso);
  border-radius: 0 4px 4px 0;
  font-style: italic;
}
.econ-src { font-size: 12px !important; }

/* nelle card della roadmap di Roma, che non ha barre laterali */
.tl-card-econ {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line, #e5e0d8);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mid);
}
.tl-card-econ strong { color: var(--ink); }
.tl-card-econ p { margin: 0 0 6px; }
.tl-card-econ p:last-child { margin-bottom: 0; }

/* ── PDF nel menu di navigazione ─────────────────────────────────────────
   Il PDF era raggiungibile solo dal footer: su mobile, dove il footer è
   lontano, era di fatto introvabile. Compare ora nel menu, prima voce
   sempre visibile appena si apre l'hamburger. */
.nav-links .nav-pdf {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  opacity: 1;
  border: 1.5px solid var(--ink);
  padding: 7px 16px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .3px;
  transition: background var(--transition), color var(--transition);
}
.nav-links .nav-pdf svg { flex-shrink: 0; }
.nav-links .nav-pdf:hover { background: var(--ink); color: white; opacity: 1; }

/* ── Nota di trasparenza ─────────────────────────────────────────────────── */
.disclaimer-note {
  margin: 0 0 40px;
  padding: 16px 20px;
  background: var(--paper);
  border: 1px solid var(--light);
  border-left: 3px solid var(--mid);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.disclaimer-note p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mid);
  margin: 0;
}
.disclaimer-note strong { color: var(--ink); }