:root {
  --color-primary: #f16926;
  --color-dark: #000000;
  --color-deep-black: #050505;
  --color-rich-black: #0a0a0a;
  --color-light: #ffffff;
  --color-muted: #1a1a1a;
  --color-light-muted: #111111;
  --color-accent: #ffffff;
  --font-base: "DM Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "Space Grotesk", "DM Sans", sans-serif;
  --font-mono: "Fragment Mono", "Courier New", monospace;
  --max-width: 1200px;
  --transition-base: all 0.3s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: rgba(255, 255, 255, 0.9);
  background-color: var(--color-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-light);
}

h1 {
  font-weight: 900;
  letter-spacing: -0.04em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary);
}

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

/* HEADER & NAV */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-logo img {
  width: 48px;
  height: auto;
}

.navbar-logo-text {
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 1.1rem;
  color: var(--color-light);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.8);
}

.navbar-links a {
  position: relative;
}

.navbar-links a:hover,
.navbar-links a[aria-current="page"] {
  color: var(--color-light);
}

.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  background-color: var(--color-primary);
  color: var(--color-light);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.navbar-cta:hover {
  background-color: #ff7f3d;
  transform: translateY(-1px);
  color: white;
}

.navbar-login {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  background-color: transparent;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  margin-right: 0.75rem;
}

.navbar-login:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-1px);
}

/* ===========================================
   DESKTOP DROPDOWN NAVIGATION
   =========================================== */

/* Dropdown Container */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 6px;
}

.nav-dropdown-trigger:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.dropdown-arrow {
  font-size: 0.65rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  padding: 0.5rem 0;
  background: #111111;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 1000;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid rgba(255, 255, 255, 0.15);
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.75rem 1.25rem;
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 400;
  transition: all 0.15s ease;
}

.nav-dropdown-menu a:hover {
  background: rgba(241, 105, 38, 0.2);
  color: var(--color-primary);
  padding-left: 1.5rem;
}

.nav-dropdown-menu a.nav-highlight {
  color: var(--color-primary);
  font-weight: 600;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 0.25rem;
  padding-top: 0.875rem;
}

/* Hub Link - Evidenziato */
.nav-hub-link {
  color: var(--color-primary) !important;
  font-weight: 600 !important;
  background: rgba(241, 105, 38, 0.15);
  padding: 0.5rem 0.875rem !important;
  border-radius: 6px;
  transition: all 0.2s ease !important;
}

.nav-hub-link:hover {
  background: rgba(241, 105, 38, 0.25) !important;
}

/* Navbar links - testo bianco chiaro */
.navbar-links > a {
  color: #ffffff;
  font-weight: 500;
  font-size: 0.95rem;
}

.navbar-links > a:hover {
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-light);
  margin: 5px 0;
}

/* HERO SECTION */
.hero {
  position: relative;
  background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(241,105,38,0.05) 100%);
  padding: 8rem 1.5rem 6rem;
  text-align: center;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero-content {
  max-width: 800px;
  z-index: 2;
}

.hero-pill {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero h1 span {
  color: var(--color-primary);
}

.hero-lead {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2.5rem;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-footnote {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
  border: none;
}

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

.btn-primary:hover {
  background-color: #ff7f3d;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(241, 105, 38, 0.2);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-light);
}

.btn-outline:hover {
  border-color: var(--color-light);
  background: rgba(255, 255, 255, 0.05);
}

/* SECTIONS */
.section {
  padding: 6rem 1.5rem;
}

.section-muted {
  background-color: var(--color-muted);
}

.section-dark {
  background-color: var(--color-deep-black);
}

.section-light, .section-bright {
  background-color: var(--color-light-muted); /* Ora dark per il tema professionale */
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header span {
  display: block;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
}

/* GRIDS & CARDS */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 2rem;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.5rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(241, 105, 38, 0.1);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.link-inline {
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.link-inline:hover {
  gap: 0.75rem;
}

/* CASE STUDY SPECIFIC STYLES (Moved from HTML) */
.case-study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin: 3rem 0;
}

.case-study-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.case-study-card:hover {
  transform: translateY(-8px);
  border-color: rgba(241, 105, 38, 0.3);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.case-study-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background-color: var(--color-muted);
}

.case-study-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-study-meta {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.case-study-tag {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
}

.case-study-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  line-height: 1.3;
  color: var(--color-light);
}

.case-study-excerpt {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex: 1;
}

.case-study-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.metric-item {
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
  font-family: var(--font-mono);
}

.metric-label {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
}

.case-study-cta {
  text-align: center;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  color: var(--color-light);
  font-weight: 600;
  transition: all 0.2s ease;
}

.case-study-cta:hover {
  background: var(--color-primary);
  color: white;
}

/* FILTERS */
.filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin: 2rem 0 3rem;
}

.filter-btn {
  padding: 0.6rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: transparent;
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover, .filter-btn.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
}

/* COMPARISON TABLE */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
}

.comparison-table thead {
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table th {
  padding: 1.5rem 1rem;
  font-weight: 600;
  text-align: left;
  color: var(--color-light);
}

.comparison-table td {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.8);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table td:first-child {
  font-weight: 600;
  color: var(--color-light);
}

.check { color: #10b981; margin-right: 0.5rem; }
.cross { color: #ef4444; margin-right: 0.5rem; }
.warning { color: #f59e0b; margin-right: 0.5rem; }

/* PILLARS */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.pillar-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2rem;
  border-radius: 20px;
}

.pillar-card strong {
  display: block;
  font-size: 1.25rem;
  color: var(--color-light);
  margin-bottom: 1rem;
}

/* TIMELINE */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

.timeline-step {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2rem;
  border-radius: 16px;
  position: relative;
}

.timeline-step span {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.timeline-step h3 {
  margin-bottom: 0.5rem;
}

/* TESTIMONIALS */
.testimonial-slider {
  position: relative;
  overflow: hidden;
  padding: 2rem 0;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3rem;
  border-radius: 24px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-card p {
  font-size: 1.25rem;
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
}

.testimonial-author strong {
  display: block;
  color: var(--color-light);
}

.testimonial-author span {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

/* FAQ */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  background: none;
  border: none;
  color: var(--color-light);
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  text-align: left;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-content p {
  padding-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.7);
}

.accordion-item.open .accordion-content {
  max-height: 500px;
}

.accordion-trigger svg {
  transition: transform 0.3s ease;
}

.accordion-item.open .accordion-trigger svg {
  transform: rotate(180deg);
}

/* FOOTER */
.footer {
  background-color: #000000;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 5rem 1.5rem 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer h4 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.75rem;
}

.footer a {
  color: rgba(255, 255, 255, 0.6);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.2s ease;
}

.social-links a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* CONTACT FORM */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.contact-form {
  background: rgba(255, 255, 255, 0.03);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: white;
  font-family: var(--font-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(0, 0, 0, 0.5);
}

/* UTILS */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.utility-bar {
  background: #000;
  color: var(--color-primary);
  text-align: center;
  padding: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .navbar-links, .navbar-cta, .navbar-login {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .section {
    padding: 3rem 1.25rem;
  }

  .navbar-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(20px);
    padding: 1.5rem;
    gap: 0;
    z-index: 999;
    overflow-y: auto;
    border-bottom: none;
  }

  .navbar-links.open > a {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: #ffffff;
    font-size: 1.1rem;
  }

  /* Dropdown su mobile - sempre visibile */
  .navbar-links.open .nav-dropdown {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .navbar-links.open .nav-dropdown-trigger {
    width: 100%;
    justify-content: space-between;
    padding: 1rem 0;
    font-size: 1.1rem;
    color: #ffffff;
  }

  .navbar-links.open .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0 0 0.5rem 1rem;
    min-width: auto;
  }

  .navbar-links.open .nav-dropdown-menu::before {
    display: none;
  }

  .navbar-links.open .nav-dropdown-menu a {
    padding: 0.75rem 0;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    border-bottom: none;
  }

  .navbar-links.open .nav-dropdown-menu a:hover {
    padding-left: 0.5rem;
    color: var(--color-primary);
    background: transparent;
  }

  .navbar-links.open .dropdown-arrow {
    display: none;
  }

  /* Prevent body scroll when menu is open */
  body.menu-open {
    overflow: hidden;
  }
}

/* Prevent horizontal overflow globally */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

/* Ensure images don't overflow */
img {
  max-width: 100%;
  height: auto;
}