/* ===================================================================
   MENU DNA INFORMATICA — Stile Microsoft / Fluent / Vercel
   =================================================================== */

:root {
  /* Colori tema light */
  --bg: #ffffff;
  --bg-elev: #f8f9fa;
  --bg-card: #ffffff;
  --bg-hover: #f3f4f6;
  --text: #0a0a0a;
  --text-muted: #5f6368;
  --text-subtle: #8b8f94;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --accent: #0067b8;          /* blu Microsoft */
  --accent-hover: #005a9e;
  --accent-soft: rgba(0, 103, 184, .08);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04);
  --shadow-lg: 0 24px 48px rgba(0,0,0,.12), 0 8px 16px rgba(0,0,0,.06);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --header-h: 140px; /* Altezza header */
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-elev: #141414;
  --bg-card: #171717;
  --bg-hover: #1f1f1f;
  --text: #f5f5f5;
  --text-muted: #a3a3a3;
  --text-subtle: #737373;
  --border: #262626;
  --border-strong: #383838;
  --accent: #4dabf7;
  --accent-hover: #74c0fc;
  --accent-soft: rgba(77,171,247,.12);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,.5);
  --shadow-lg: 0 24px 48px rgba(0,0,0,.7);
}

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

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
img { max-width: 100%; display: block; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-md);
}

[data-theme="dark"] .site-header {
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.05), 0 1px 3px rgba(255, 255, 255, 0.02);
}
[data-theme="dark"] .site-header.scrolled {
  box-shadow: 0 6px 24px rgba(255, 255, 255, 0.08), 0 2px 6px rgba(255, 255, 255, 0.04);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

/* Loghi */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  transition: opacity var(--transition);
}
.logo:hover { opacity: .8; }
.logo img { height: 120px; width: auto; transition: opacity var(--transition); }
.logo-light { display: block; }
.logo-dark { display: none; }
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark { display: block; }

/* ===== NAV DESKTOP & SCROLLER ===== */
.nav-desktop {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0; /* Importante per lo scroll */
}

/* Contenitore frecce e menu */
.nav-scroll-container {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  justify-content: center;
   max-width: 600px; /* <-- Regola questo valore a piacere (es. 700px, 900px) */
  margin: 0 auto;   /* Mantiene il menu centrato nell'header */
}

/* Lista del menu */
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  position: relative; /* Per l'indicatore attivo */
  
  /* Scroll fluido e invisibile */
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  
  /* Padding per le frecce */
  padding: 0 35px;
  width: 100%;
}

.nav-list::-webkit-scrollbar { display: none; }

/* Le voci non si schiacciano */
.nav-item { 
  position: relative; 
  flex-shrink: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-item.open .nav-link {
  color: var(--text);
  background: var(--bg-hover);
}

.nav-chevron {
  width: 14px; 
  height: 14px;
  transition: transform var(--transition);
  flex-shrink: 0;
}

.nav-item.open .nav-chevron { 
  transform: rotate(180deg); 
}

/* Indicatore attivo */
.nav-indicator {
  position: absolute;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

/* Frecce di scorrimento */
.nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease, background 0.2s ease;
  box-shadow: var(--shadow-md);
}

.nav-arrow:hover { background: var(--bg-hover); }

.nav-arrow.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-arrow.prev { left: 0; }
.nav-arrow.next { right: 0; }
.nav-arrow svg { width: 18px; height: 18px; }

/* Sfumature laterali (Effetto Premium) */
.nav-scroll-container::before,
.nav-scroll-container::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  pointer-events: none;
  z-index: 5;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav-scroll-container::before {
  left: 0;
  background: linear-gradient(to right, var(--bg) 20%, transparent);
}
.nav-scroll-container.show-left-fade::before { opacity: 1; }

.nav-scroll-container::after {
  right: 0;
  background: linear-gradient(to left, var(--bg) 20%, transparent);
}
.nav-scroll-container.show-right-fade::after { opacity: 1; }

/* ===== AZIONI HEADER ===== */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform .15s ease;
}
.btn:active { transform: scale(.98); }

.btn-ghost {
  color: var(--text);
  background: transparent;
  border-color: var(--border);
}
.btn-ghost:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.btn-primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.theme-toggle:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-strong);
}
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  transition: background var(--transition), border-color var(--transition);
}
.hamburger:hover { background: var(--bg-hover); }

.hamburger-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s cubic-bezier(.4,0,.2,1), opacity .2s ease;
}

.hamburger.active .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== MEGA MENU ===== */
.mega-menu {
  position: absolute;
  top: var(--header-h);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: min(1200px, calc(100vw - 48px));
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
  overflow: hidden;
  max-height: calc(100vh - var(--header-h) - 32px);
  overflow-y: auto;
}

.mega-menu.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-inner { padding: 32px; }

/* Griglia mega menu */
.mega-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}

.mega-col-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-subtle);
  margin-bottom: 12px;
}

.mega-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mega-link {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
  color: var(--text);
}
.mega-link:hover { background: var(--bg-hover); }

.mega-link-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
}
.mega-link:hover .mega-link-icon {
  background: var(--accent);
  color: #fff;
}
.mega-link-icon svg { width: 18px; height: 18px; }

.mega-link-body { min-width: 0; }
.mega-link-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mega-link-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.45;
}

.mega-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
}

/* Card promo */
.mega-promo {
  background: linear-gradient(135deg, var(--bg-elev), var(--bg-hover));
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
  position: relative;
  overflow: hidden;
}
.mega-promo::before {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: var(--accent-soft);
  border-radius: 50%;
  filter: blur(20px);
}
.mega-promo-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
}
.mega-promo-icon svg { width: 20px; height: 20px; }
.mega-promo h4 { font-size: 15px; font-weight: 700; color: var(--text); }
.mega-promo p { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.mega-promo a {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.mega-promo a:hover { text-decoration: underline; }

/* Footer mega menu */
.mega-footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.mega-footer-text { font-size: 13px; color: var(--text-muted); }
.mega-footer a { font-size: 13px; font-weight: 600; color: var(--accent); }
.mega-footer a:hover { text-decoration: underline; }

/* ===== MOBILE MENU ===== */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .25s ease, visibility .25s;
  z-index: 998;
}
.mobile-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: var(--bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  visibility: hidden;
}
.mobile-menu.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.mobile-close {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background var(--transition);
}
.mobile-close:hover { background: var(--bg-hover); }
.mobile-close svg { width: 20px; height: 20px; }

.mobile-menu-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px 24px;
  -webkit-overflow-scrolling: touch;
}

/* Accordion */
.acc { border-bottom: 1px solid var(--border); }
.acc:last-child { border-bottom: none; }

.acc-trigger {
  width: 100%;
  padding: 18px 12px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  text-align: left;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}
.acc-trigger:hover { background: var(--bg-hover); }

.acc-chevron {
  width: 18px; height: 18px;
  color: var(--text-muted);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  flex-shrink: 0;
}
.acc.open .acc-chevron { transform: rotate(180deg); }

.acc-content {
  overflow: hidden;
  height: 0;
  transition: height .3s cubic-bezier(.4,0,.2,1);
}

.acc-inner {
  padding: 0 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-link {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}
.mobile-link:hover { background: var(--bg-hover); }

.mobile-link-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.mobile-link-icon svg { width: 16px; height: 16px; }

.mobile-link-title {
  display: block;  
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.mobile-link-desc {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.mobile-menu-footer {
  padding: 16px 20px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}
.mobile-menu-footer .btn { flex: 1; padding: 13px; font-size: 14px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .nav-desktop { display: none; }
  .hamburger { display: flex; }
  .header-actions .btn-ghost,
  .header-actions .btn-primary { display: none; }
  .logo img { height: 70px; } /* Logo più piccolo su mobile */
}

@media (max-width: 480px) {
  .header-inner { padding: 0 16px; gap: 12px; }
  .logo img { height: 50px; }
}


/* ===== PULSANTE RICERCA ===== */
.search-btn {
  width: 36px; 
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.search-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-strong);
}

.search-btn svg {
  width: 18px; 
  height: 18px;
}

/* ===== RICERCA ESPANDIBILE ===== */
.search-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 36px;
}

.search-btn {
  width: 36px; 
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.search-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-strong);
}

.search-btn svg {
  width: 18px; 
  height: 18px;
}

/* Il contenitore della barra espansa */
.search-input-wrapper {
  position: absolute;
  right: 0;
  top: 0;
  width: 0;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
              opacity 0.25s ease, 
              border-color var(--transition);
  box-shadow: var(--shadow-sm);
}

/* Quando si apre, larghezza 200px (più compatta) */
.search-container.open .search-input-wrapper {
  width: 200px; /* Ridotto da 240px a 200px */
  opacity: 1;
  pointer-events: auto;
  border-color: var(--border-strong);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15); /* <-- Ombra profonda */
  z-index: 10000; /* <-- Forza il primo piano */
}

.search-container.open .search-btn {
  opacity: 0;
  pointer-events: none;
}

/* Icona interna */
.search-icon-inside {
  width: 14px;  /* Ancora più piccola */
  height: 14px;
  margin-left: 6px; /* Margine molto stretto */
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Campo di testo */
.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0 4px; /* Spazio ridotto al minimo */
  font-size: 12px; /* Testo più piccolo per stare comodo */
  color: var(--text);
  outline: none;
  font-family: inherit;
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* Pulsante X */
.search-close {
  width: 20px; /* Ancora più piccolo */
  height: 20px;
  margin-right: 2px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background var(--transition), color var(--transition);
}

.search-close:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.search-close svg {
  width: 12px; /* Più fine */
  height: 12px;
}
/* =========================================
   LOGO HEADER GRANDE (FORZATO)
   ========================================= */

/* 1. Alza l'altezza dell'header per far stare il logo grande */
:root {
  --header-h: 120px !important; 
}

/* 2. Forza le dimensioni del logo */
.logo-main {
  height: 120px !important; /* Cambia questo valore per ingrandire/rimpicciolire */
  width: auto !important;
  max-width: none !important;
  object-fit: contain !important;
}

/* =========================================
   FIX MOBILE MENU
   ========================================= */

/* Altezza del menu header mobile (allineata all'header principale) */
.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  /* Usiamo la variabile globale per non sballare il layout */
  height: var(--header-h); 
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

/* Logo nel menu mobile (più piccolo dell'header desktop per non occupare tutto lo schermo) */
.mobile-menu-header .logo img {
  height: 60px; /* Manteniamo il logo a 60px */
  width: auto;
  max-width: none;
}

/* Assicuriamoci che il contenuto del menu si espanda correttamente */
.mobile-menu-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px 24px;
  -webkit-overflow-scrolling: touch;
}