/* ═══════════════════════════════════════════════════════════
   DigiAi Theme — main.css
   Dark Tech + Glassmorphism Design System
   ═══════════════════════════════════════════════════════════ */

/* ── 0. CSS Custom Properties ─────────────────────────────── */
:root {
  /* Colors */
  --clr-bg:           #050A14;
  --clr-bg-alt:       #0A1628;
  --clr-surface:      #0D1E35;
  --clr-surface-2:    #132544;
  --clr-border:       rgba(255, 255, 255, 0.08);
  --clr-border-glow:  rgba(0, 212, 255, 0.3);

  --clr-primary:      #00D4FF;
  --clr-primary-dim:  rgba(0, 212, 255, 0.15);
  --clr-primary-glow: rgba(0, 212, 255, 0.4);
  --clr-secondary:    #7C3AED;
  --clr-secondary-dim:rgba(124, 58, 237, 0.15);
  --clr-accent:       #00F5A0;
  --clr-accent-dim:   rgba(0, 245, 160, 0.15);
  --clr-warning:      #F59E0B;
  --clr-danger:       #EF4444;
  --clr-whatsapp:     #25D366;

  --clr-text:         #E2E8F0;
  --clr-text-muted:   #94A3B8;
  --clr-text-subtle:  #64748B;
  --clr-heading:      #F8FAFC;

  /* Gradients */
  --grad-primary:  linear-gradient(135deg, #00D4FF 0%, #7C3AED 100%);
  --grad-accent:   linear-gradient(135deg, #00F5A0 0%, #00D4FF 100%);
  --grad-hero:     radial-gradient(ellipse at 20% 50%, rgba(0,212,255,.15) 0%, transparent 60%),
                   radial-gradient(ellipse at 80% 20%, rgba(124,58,237,.12) 0%, transparent 60%),
                   linear-gradient(180deg, #050A14 0%, #0A1628 100%);

  /* Glass */
  --glass-bg:      rgba(255, 255, 255, 0.04);
  --glass-border:  rgba(255, 255, 255, 0.08);
  --glass-blur:    blur(16px);
  --glass-hover:   rgba(255, 255, 255, 0.07);

  /* Typography */
  --font-heading:  'Space Grotesk', system-ui, sans-serif;
  --font-body:     'Inter', system-ui, sans-serif;
  --font-mono:     'JetBrains Mono', 'Fira Code', monospace;

  /* Sizes */
  --container:     1200px;
  --container-sm:  800px;
  --radius-sm:     8px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --radius-full:   9999px;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  6rem;
  --space-3xl:  8rem;

  /* Transitions */
  --transition:       all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:  all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast:  all 0.15s ease;
}

/* ── 1. Reset & Base ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.admin-bar .site-header { top: 32px; }

img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-primary); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--clr-accent); }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); }
input, textarea, select { font-family: var(--font-body); }
strong { font-weight: 600; }

/* Focus accessibilità */
:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── 2. Typography —────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--clr-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; color: var(--clr-text); }
p:last-child { margin-bottom: 0; }

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-accent-gradient {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--clr-primary);
}

/* ── 3. Layout ───────────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--sm {
  max-width: var(--container-sm);
}

.section-pad {
  padding: var(--space-xl) 0;
}

.section-pad--lg {
  padding: var(--space-3xl) 0;
}

/* ── 4. Header ────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 72px;
  background: rgba(5, 10, 20, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--clr-border);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.site-header.scrolled {
  background: rgba(5, 10, 20, 0.92);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

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

.site-logo img,
.site-logo .custom-logo {
  height: 44px;
  width: auto;
  max-width: 180px;
  display: block;
  transition: var(--transition);
}

.site-logo:hover img,
.site-logo:hover .custom-logo { opacity: 0.85; }

@media (max-width: 1024px) {
  .site-logo img, .site-logo .custom-logo { height: 38px; max-width: 155px; }
}
@media (max-width: 768px) {
  .site-logo img, .site-logo .custom-logo { height: 34px; max-width: 138px; }
}
@media (max-width: 480px) {
  .site-logo img, .site-logo .custom-logo { height: 28px; max-width: 114px; }
}

/* Nav */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-menu li { position: relative; }

.nav-menu li > a {
  display: block;
  padding: 0.5rem 0.875rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-menu li > a:hover,
.nav-menu li.current-menu-item > a {
  color: var(--clr-heading);
  background: var(--glass-bg);
}

/* Header CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-bg);
  background: var(--grad-primary);
  border-radius: var(--radius-full);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--clr-primary-glow);
  color: var(--clr-bg);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.5rem;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  transition: var(--transition);
  border-radius: 2px;
}

/* Scroll progress bar */
.scroll-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--grad-primary);
  transition: width 0.1s linear;
}

/* ── 5. Buttons ───────────────────────────────────────────── */
.digiai-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.digiai-btn--primary {
  background: var(--grad-primary);
  color: #000;
}

.digiai-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--clr-primary-glow);
  color: #000;
}

.digiai-btn--secondary {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}

.digiai-btn--secondary:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  background: var(--clr-primary-dim);
}

.digiai-btn--ghost {
  background: var(--glass-bg);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
  backdrop-filter: var(--glass-blur);
}

.digiai-btn--ghost:hover {
  background: var(--glass-hover);
  border-color: var(--clr-border-glow);
  color: var(--clr-heading);
}

.digiai-btn--accent {
  background: var(--grad-accent);
  color: #000;
}

.digiai-btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 245, 160, 0.35);
  color: #000;
}

.digiai-btn--lg {
  padding: 1.125rem 2.5rem;
  font-size: 1.05rem;
}

.digiai-btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

/* ── 6. Cards ─────────────────────────────────────────────── */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: var(--glass-blur);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity 0.4s ease;
  border-radius: inherit;
  z-index: 0;
}

.card:hover::before {
  opacity: 0.03;
}

.card:hover {
  border-color: var(--clr-border-glow);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--clr-primary-dim);
}

.card > * { position: relative; z-index: 1; }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--clr-primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--clr-primary);
}

.card-icon svg { width: 26px; height: 26px; }

.card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--clr-heading);
  margin-bottom: 0.625rem;
}

.card-text {
  font-size: 0.925rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin: 0;
}

/* Grid cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.cards-grid--2 { grid-template-columns: repeat(2, 1fr); }
.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ── 7. Sections ──────────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--clr-text-muted);
  font-size: 1.1rem;
}

/* ── 8. Hero Inner ────────────────────────────────────────── */
.hero-inner {
  position: relative;
  padding: 9rem 0 4rem;
  overflow: hidden;
}

.hero-inner__bg {
  position: absolute;
  inset: 0;
  background: var(--grad-hero);
  z-index: 0;
}

.hero-inner__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.hero-inner__glow--1 {
  width: 400px;
  height: 400px;
  background: var(--clr-primary);
  top: -100px;
  left: -100px;
  opacity: 0.08;
}

.hero-inner__glow--2 {
  width: 300px;
  height: 300px;
  background: var(--clr-secondary);
  bottom: -50px;
  right: 10%;
  opacity: 0.06;
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

.hero-inner__content {
  position: relative;
  z-index: 1;
}

.hero-inner__title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.hero-inner__subtitle {
  color: var(--clr-text-muted);
  font-size: 1.1rem;
  max-width: 580px;
  margin-top: 0.75rem;
}

/* ── 9. Blog / Archive ────────────────────────────────────── */
.post-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.post-card:hover {
  border-color: var(--clr-border-glow);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.post-thumb img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .post-thumb img { transform: scale(1.05); }

.post-content { padding: 1.5rem; }
.post-title { font-size: 1.25rem; margin-bottom: 0.5rem; }
.post-title a { color: var(--clr-heading); }
.post-title a:hover { color: var(--clr-primary); }
.post-meta { font-size: 0.8rem; color: var(--clr-text-subtle); margin-bottom: 0.75rem; }
.post-excerpt { font-size: 0.9rem; color: var(--clr-text-muted); }
.read-more { display: inline-block; margin-top: 0.75rem; font-size: 0.875rem; font-weight: 600; color: var(--clr-primary); }
.read-more:hover { color: var(--clr-accent); }

/* ── 10. Breadcrumb ───────────────────────────────────────── */
.breadcrumb {
  margin-bottom: 0.75rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8rem;
  color: var(--clr-text-subtle);
}

.breadcrumb li + li::before {
  content: '/';
  margin-right: 0.375rem;
  color: var(--clr-text-subtle);
}

.breadcrumb a { color: var(--clr-text-muted); }
.breadcrumb a:hover { color: var(--clr-primary); }

/* ── 11. Badge / Tags ─────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

.badge--primary  { background: var(--clr-primary-dim);   color: var(--clr-primary); }
.badge--secondary{ background: var(--clr-secondary-dim); color: #A78BFA; }
.badge--accent   { background: var(--clr-accent-dim);    color: var(--clr-accent); }
.badge--warning  { background: rgba(245,158,11,.15);     color: var(--clr-warning); }

/* ── 12. Stats bar ────────────────────────────────────────── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
}

.stat-item {
  padding: 2rem 1.5rem;
  text-align: center;
  border-right: 1px solid var(--clr-border);
  transition: var(--transition);
}

.stat-item:last-child { border-right: none; }
.stat-item:hover { background: var(--glass-hover); }

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 0.375rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  font-weight: 500;
}

/* ── 13. WhatsApp Float ───────────────────────────────────── */
.wa-float {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  z-index: 90;
}

.wa-float__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--clr-whatsapp);
  color: #fff;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
  transition: var(--transition);
}

.wa-float__btn:hover {
  transform: scale(1.1);
  color: #fff;
  box-shadow: 0 10px 32px rgba(37, 211, 102, 0.65);
}

.wa-float__btn svg { width: 30px; height: 30px; }

/* ── 14. Footer ───────────────────────────────────────────── */
.site-footer {
  background: var(--clr-bg-alt);
  border-top: 1px solid var(--clr-border);
  margin-top: var(--space-3xl);
}

.footer-top { padding: var(--space-xl) 0; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr 2fr;
  gap: var(--space-xl);
}

.footer-logo img { height: 36px; margin-bottom: 1rem; }

.footer-tagline {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--clr-text-muted);
  transition: var(--transition-fast);
}

.social-link svg { width: 18px; height: 18px; fill: currentColor; }

.social-link:hover {
  background: var(--clr-primary-dim);
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

.footer-col-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-heading);
  margin-bottom: 1.25rem;
}

.footer-menu li { margin-bottom: 0.625rem; }
.footer-menu a { font-size: 0.9rem; color: var(--clr-text-muted); }
.footer-menu a:hover { color: var(--clr-primary); }

.footer-contact-list { display: flex; flex-direction: column; gap: 0.875rem; }
.footer-contact-list li { display: flex; align-items: flex-start; gap: 0.625rem; font-size: 0.875rem; color: var(--clr-text-muted); }
.footer-contact-list .icon { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; color: var(--clr-primary); }
.footer-contact-list .whatsapp-icon { color: var(--clr-whatsapp); }
.footer-contact-list a { color: var(--clr-text-muted); }
.footer-contact-list a:hover { color: var(--clr-primary); }

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding: 1.25rem 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copy { font-size: 0.8rem; color: var(--clr-text-subtle); margin: 0; }
.footer-credit { font-size: 0.78rem; color: var(--clr-text-subtle); margin: 0; }
.footer-credit a { color: var(--clr-text-subtle); }
.footer-credit a:hover { color: var(--clr-primary); }

.footer-legal-menu { display: flex; gap: 1.25rem; }
.footer-legal-menu a { font-size: 0.8rem; color: var(--clr-text-subtle); }
.footer-legal-menu a:hover { color: var(--clr-primary); }

/* ── 15. Sidebar ──────────────────────────────────────────── */
.content-area {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2.5rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: calc(72px + 2rem);
}

.widget { margin-bottom: 2rem; }
.widget-title { font-size: 1rem; font-weight: 700; margin-bottom: 1rem; color: var(--clr-heading); }

/* ── 16. Forms ────────────────────────────────────────────── */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
}

.form-field label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text);
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 0.75rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  width: 100%;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  background: rgba(0, 212, 255, 0.04);
  box-shadow: 0 0 0 3px var(--clr-primary-dim);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--clr-text-subtle);
}

.form-field textarea { min-height: 120px; resize: vertical; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ── 17. Pagination ──────────────────────────────────────── */
.nav-links {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 3rem;
}

.page-numbers {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--clr-text-muted);
  transition: var(--transition-fast);
}

.page-numbers:hover,
.page-numbers.current {
  background: var(--clr-primary-dim);
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

/* ── 18. Loader ───────────────────────────────────────────── */
.digiai-loader {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
}

.digiai-loader span {
  width: 8px;
  height: 8px;
  background: var(--clr-primary);
  border-radius: 50%;
  animation: loader-bounce 1.2s infinite ease-in-out;
}

.digiai-loader span:nth-child(2) { animation-delay: 0.2s; }
.digiai-loader span:nth-child(3) { animation-delay: 0.4s; }

@keyframes loader-bounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.3; }
  40%            { transform: scale(1); opacity: 1; }
}

/* ── 19. Utility ──────────────────────────────────────────── */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-muted  { color: var(--clr-text-muted) !important; }
.text-primary{ color: var(--clr-primary) !important; }
.text-accent { color: var(--clr-accent) !important; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }
.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.d-flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.w-full { width: 100%; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ── 20. Responsive ───────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .cards-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
}

@media (max-width: 768px) {
  /* Header nav mobile */
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 10, 20, 0.97);
    backdrop-filter: blur(20px);
    z-index: 99;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding: 2rem;
  }

  .site-nav.open { transform: translateX(0); }

  .nav-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .nav-menu li > a {
    font-size: 1.25rem;
    padding: 0.875rem 1rem;
    width: 100%;
  }

  .hamburger { display: flex; }
  .btn-header-cta span:not(.icon) { display: none; }

  /* Content */
  .content-area { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cards-grid--2,
  .cards-grid--3,
  .cards-grid--4 { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .footer-legal-menu { justify-content: center; }
}

@media (max-width: 480px) {
  :root { --space-xl: 2.5rem; --space-2xl: 4rem; --space-3xl: 5rem; }
  .stats-bar { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--clr-border); }
  .stat-item:last-child { border-bottom: none; }
}

/* ============================================================
   BLOG CATEGORY FILTERS
   ============================================================ */
.blog-filter-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 2rem;
}
.blog-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .4rem 1rem;
  border: 1px solid var(--clr-border);
  border-radius: 9999px;
  background: transparent;
  color: var(--clr-text-muted);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.blog-filter-btn:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}
.blog-filter-btn.active {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #000;
  font-weight: 700;
}
.filter-count {
  background: rgba(255,255,255,.15);
  border-radius: 9999px;
  padding: .05rem .4rem;
  font-size: .7rem;
}
.blog-filter-btn.active .filter-count { background: rgba(0,0,0,.2); }
.post-card-wrap { display: contents; }

/* ============================================================
   SOCIAL SHARE BOX
   ============================================================ */
.share-box {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}
.share-label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  white-space: nowrap;
}
.share-btns {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .45rem .9rem;
  border-radius: 9999px;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: var(--transition);
  line-height: 1;
}
.share-btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.share-btn--fb  { background: #1877f2; color: #fff; }
.share-btn--fb:hover  { background: #0e5fc2; color: #fff; }
.share-btn--wa  { background: #25d366; color: #fff; }
.share-btn--wa:hover  { background: #1aad4b; color: #fff; }
.share-btn--li  { background: #0a66c2; color: #fff; }
.share-btn--li:hover  { background: #064e96; color: #fff; }
.share-btn--ig {
  background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #fff;
  border: none;
  font-family: inherit;
}
.share-btn--ig:hover { opacity: .88; }
.share-btn--copy {
  background: var(--glass-bg);
  color: var(--clr-text);
  border-color: var(--clr-border);
  font-family: inherit;
}
.share-btn--copy:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.share-btn--copy.copied { border-color: var(--clr-accent); color: var(--clr-accent); }
@media (max-width: 480px) {
  .share-box { flex-direction: column; align-items: flex-start; }
  .share-btns { gap: .375rem; }
  .share-btn  { font-size: .75rem; padding: .4rem .75rem; }
}

/* Header logo — leggermente ridotto */
.site-logo img,
.site-logo .custom-logo { height: 38px; max-width: 160px; }
@media (max-width: 1024px) {
  .site-logo img, .site-logo .custom-logo { height: 34px; max-width: 140px; }
}