/* ==========================================================================
   PRESENTAZIONE CONFERENZA - MAPPA MENTALE CIRCOLARE (7 NODI)
   Design: Minimale, Elegante, Dark Mode (#0e0e11)
   ========================================================================== */

:root {
  --bg-color: #0e0e11;
  --bg-gradient: radial-gradient(circle at 50% 50%, #171822 0%, #0e0e11 65%, #070709 100%);
  --line-color: rgba(147, 197, 253, 0.35);
  --line-hover: rgba(167, 139, 250, 0.85);
  --node-border: rgba(255, 255, 255, 0.4);
  --node-border-hover: rgba(255, 255, 255, 0.95);
  --node-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(99, 179, 237, 0.2);
  --node-shadow-hover: 0 16px 45px rgba(0, 0, 0, 0.9), 0 0 35px rgba(167, 139, 250, 0.5);
  --text-muted: rgba(255, 255, 255, 0.45);
  --transition-smooth: 250ms cubic-bezier(0.16, 1, 0.3, 1);
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-color);
}

html, body {
  width: 100%;
  overflow-x: hidden; /* La pagina scorre in verticale verso la sezione Pionieri */
  background-color: var(--bg-color);
  font-family: var(--font-family);
  color: #ffffff;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

/* ==========================================================================
   VIEWPORT PRINCIPALE E STAGE INTERATTIVO
   ========================================================================== */

.app-viewport {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  min-height: -webkit-fill-available;
  overflow: hidden;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-gradient);
  /* A zoom 1x il dito scorre la pagina; quando ingrandito il touch sposta lo stage */
  touch-action: pan-y;
}

.app-viewport.is-zoomed {
  touch-action: none;
}

.app-viewport.is-dragging {
  cursor: grabbing;
}

/* ==========================================================================
   MENU HAMBURGER SOCIAL (IN ALTO A DESTRA)
   ========================================================================== */

.social-nav {
  position: fixed;
  top: 24px;
  right: 28px;
  z-index: 60;
  pointer-events: auto;
}

/* Pulsante Hamburger minimalista in vetro */
.hamburger-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  outline: none;
  padding: 0;
  margin: 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45), 0 0 15px rgba(255, 255, 255, 0.04);
  transition: background var(--transition-smooth), border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hamburger-btn:hover,
.hamburger-btn:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.06);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6), 0 0 20px rgba(99, 179, 237, 0.25);
}

.hamburger-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 3px;
}

.hamburger-bar {
  display: block;
  width: 19px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 2px;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), opacity 200ms ease, background-color var(--transition-smooth);
  transform-origin: center;
}

/* Animazione di trasformazione in 'X' quando aperto */
.social-nav.is-open .hamburger-btn {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.45);
}

.social-nav.is-open .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.social-nav.is-open .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.social-nav.is-open .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Menu a comparsa (Dropdown Glassmorphism) */
.social-menu {
  position: absolute;
  top: 54px;
  right: 0;
  min-width: 210px;
  background: rgba(14, 15, 23, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  padding: 8px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.85), 0 0 30px rgba(99, 179, 237, 0.15);
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px) scale(0.95);
  transform-origin: top right;
  transition: opacity 240ms cubic-bezier(0.16, 1, 0.3, 1), transform 240ms cubic-bezier(0.16, 1, 0.3, 1), visibility 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

.social-nav.is-open .social-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

/* Singoli elementi social nel menu */
.social-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  text-decoration: none;
  border-radius: 12px;
  border: 1px solid transparent;
  color: #ffffff;
  transition: background var(--transition-smooth), border-color var(--transition-smooth), transform var(--transition-smooth);
}

.social-item:hover,
.social-item:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateX(-2px);
  outline: none;
}

.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.social-icon svg {
  width: 20px;
  height: 20px;
}

/* Stile WhatsApp */
.whatsapp-icon {
  background: rgba(37, 211, 102, 0.14);
  color: #25d366;
  border: 1px solid rgba(37, 211, 102, 0.3);
}

.whatsapp-link:hover .whatsapp-icon,
.whatsapp-link:focus-visible .whatsapp-icon {
  transform: scale(1.1);
  box-shadow: 0 0 16px rgba(37, 211, 102, 0.5);
  background: rgba(37, 211, 102, 0.22);
}

/* Stile Instagram */
.instagram-icon {
  background: linear-gradient(135deg, rgba(245, 133, 41, 0.18), rgba(221, 42, 123, 0.18), rgba(129, 52, 175, 0.18));
  color: #f7708c;
  border: 1px solid rgba(221, 42, 123, 0.35);
}

.instagram-link:hover .instagram-icon,
.instagram-link:focus-visible .instagram-icon {
  transform: scale(1.1);
  box-shadow: 0 0 16px rgba(221, 42, 123, 0.5);
  background: linear-gradient(135deg, rgba(245, 133, 41, 0.26), rgba(221, 42, 123, 0.26), rgba(129, 52, 175, 0.26));
}

.social-text {
  display: flex;
  flex-direction: column;
}

.social-name {
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.2;
}

.social-desc {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.2;
  margin-top: 2px;
}

/* Stage che contiene linee e nodi: sincronizzato in coordinate 0,0 al centro */
.mindmap-stage {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform-origin: 0 0;
  will-change: transform;
  pointer-events: none; /* Gli eventi di drag passano al viewport, i nodi abilitano pointer-events */
}

/* ==========================================================================
   CERVELLO 3D NEURALE CENTRALE & CONNESSIONI RADIALI
   ========================================================================== */

.brain-3d-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--brain-size, 220px);
  height: var(--brain-size, 220px);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: auto;
  cursor: pointer;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1), filter 320ms cubic-bezier(0.16, 1, 0.3, 1);
  outline: none;
}

.brain-3d-wrapper:hover {
  transform: translate(-50%, -50%) scale(1.05);
}

.brain-3d-wrapper:focus-visible {
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.6), 0 0 35px rgba(56, 189, 248, 0.4);
}

.brain-3d-wrapper.is-shockwave {
  animation: brainShockwavePulse 520ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes brainShockwavePulse {
  0% { transform: translate(-50%, -50%) scale(1); filter: brightness(1); }
  25% { transform: translate(-50%, -50%) scale(1.18); filter: brightness(1.7) drop-shadow(0 0 30px #38bdf8); }
  60% { transform: translate(-50%, -50%) scale(0.97); filter: brightness(1.2); }
  100% { transform: translate(-50%, -50%) scale(1); filter: brightness(1); }
}

.brain-canvas {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: block;
  pointer-events: none;
}

/* Alone energetico pulsante dietro il cervello */
.brain-ambient-glow {
  position: absolute;
  inset: -14%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.24) 0%, rgba(192, 132, 252, 0.16) 42%, rgba(14, 165, 233, 0.05) 60%, rgba(0, 0, 0, 0) 75%);
  pointer-events: none;
  filter: blur(16px);
  z-index: -1;
  animation: brainGlowPulse 4s ease-in-out infinite alternate;
}

@keyframes brainGlowPulse {
  0% { transform: scale(0.94); opacity: 0.65; }
  100% { transform: scale(1.1); opacity: 1; }
}

/* Badge HUD fluttuante elegante con nome WAU TECH */
.brain-hud-badge {
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 14px;
  background: rgba(14, 15, 23, 0.88);
  border: 1px solid rgba(56, 189, 248, 0.32);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6), 0 0 14px rgba(56, 189, 248, 0.18);
  pointer-events: none;
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth), transform var(--transition-smooth);
  white-space: nowrap;
}

.brain-3d-wrapper:hover .brain-hud-badge {
  border-color: rgba(56, 189, 248, 0.75);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.75), 0 0 20px rgba(56, 189, 248, 0.45);
  transform: translateX(-50%) translateY(2px);
}

.brain-hud-text {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #bae6fd;
}

/* ==========================================================================
   LINEE DI COLLEGAMENTO SVG (ANELLO CHIUSO E RAGGI NEURALI RADIALI)
   ========================================================================== */

.connections-svg {
  position: absolute;
  top: -1500px;
  left: -1500px;
  width: 3000px;
  height: 3000px;
  pointer-events: none;
  overflow: visible;
  z-index: 1;
}

/* Linee radiali che collegano il cervello ai 7 nodi */
.radial-connection-line {
  stroke: rgba(99, 179, 237, 0.32);
  stroke-width: 1.6px;
  stroke-dasharray: 6 3;
  transition: stroke 260ms cubic-bezier(0.16, 1, 0.3, 1), stroke-width 260ms cubic-bezier(0.16, 1, 0.3, 1), filter 260ms cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 0 5px rgba(99, 179, 237, 0.28));
}

.radial-connection-line.is-active {
  stroke: #38bdf8;
  stroke-width: 2.8px;
  stroke-dasharray: none;
  filter: drop-shadow(0 0 10px #38bdf8) drop-shadow(0 0 20px #818cf8);
}

/* Impulsi e particelle sinaptiche che scorrono lungo le linee radiali */
.radial-pulse-dot {
  fill: #ffffff;
  opacity: 0.85;
  filter: drop-shadow(0 0 6px #38bdf8);
  transition: fill 200ms, filter 200ms;
}

.radial-pulse-dot.is-active {
  fill: #ffffff;
  opacity: 1;
  filter: drop-shadow(0 0 10px #c084fc) drop-shadow(0 0 18px #38bdf8);
}

.ring-polygon {
  fill: none;
  stroke: var(--line-color);
  stroke-width: 1.8;
  stroke-dasharray: 8 4;
  filter: drop-shadow(0 0 8px rgba(99, 179, 237, 0.3));
  transition: stroke var(--transition-smooth);
}

.joint-point {
  fill: #63b3ed;
  opacity: 0.7;
  filter: drop-shadow(0 0 6px #63b3ed);
}

/* ==========================================================================
   NODI CIRCOLARI (7 CERCHI STATICI)
   ========================================================================== */

.nodes-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  z-index: 2;
}

.node-wrapper {
  position: absolute;
  transform: translate(-50%, -50%);
  pointer-events: auto;
  will-change: transform;
}

.node-btn {
  position: relative;
  display: block;
  width: var(--node-size, 110px);
  height: var(--node-size, 110px);
  border-radius: 50%;
  background: #14151f;
  border: 1.5px solid var(--node-border);
  box-shadow: var(--node-shadow);
  padding: 0;
  margin: 0;
  cursor: pointer;
  overflow: hidden;
  outline: none;
  transform: scale(1);
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
  -webkit-tap-highlight-color: transparent;
}

/* Effetto lente / riflesso sottile */
.node-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 25%, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0) 65%);
  pointer-events: none;
  z-index: 2;
}

/* Immagine interna ritagliata perfettamente a cerchio */
.node-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 50%;
  transition: transform var(--transition-smooth), filter var(--transition-smooth);
  filter: contrast(1.05) brightness(0.95);
  pointer-events: none;
}

/* 2. Zoom sul singolo cerchio al passaggio del mouse (hover ~1.1x) */
.node-btn:hover,
.node-btn:focus-visible {
  transform: scale(1.12);
  border-color: var(--node-border-hover);
  box-shadow: var(--node-shadow-hover);
  z-index: 10;
}

.node-btn:hover img,
.node-btn:focus-visible img {
  filter: contrast(1.1) brightness(1.08);
}

.node-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 4px;
}

/* Piccolo badge numerico / indice elegante stile conferenza */
.node-badge {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  background: rgba(14, 14, 17, 0.85);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.9);
  pointer-events: none;
  z-index: 3;
}

/* ==========================================================================
   INDICAZIONE DISCRETA CONTROLLI
   ========================================================================== */

.quick-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(20, 21, 31, 0.5);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  pointer-events: none;
  opacity: 0.75;
  transition: opacity 400ms ease;
  z-index: 5;
}

.hint-dot {
  opacity: 0.35;
}

/* ==========================================================================
   3. LIGHTBOX CON SFONDO SCURITO, SFOCATO E ZOOM INTERNO
   ========================================================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 280ms cubic-bezier(0.16, 1, 0.3, 1), visibility 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Sfondo scurito e sfocato (backdrop-filter) */
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(8, 8, 12, 0.88);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  cursor: pointer;
}

/* Piccola "X" in alto a destra */
.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 110;
  outline: none;
  transition: background var(--transition-smooth), transform var(--transition-smooth), border-color var(--transition-smooth);
}

.lightbox-close svg {
  width: 20px;
  height: 20px;
  stroke: rgba(255, 255, 255, 0.85);
  transition: stroke var(--transition-smooth);
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.08);
}

.lightbox-close:hover svg {
  stroke: #ffffff;
}

.lightbox-close:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.8);
}

/* Contenitore immagine ingrandita */
.lightbox-wrapper {
  position: relative;
  z-index: 105;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.lightbox-image-box {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.92);
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.lightbox.is-open .lightbox-image-box {
  transform: scale(1);
}

/* Immagine ingrandita al centro con supporto a zoom e pan interni */
.lightbox-img {
  max-width: 82vw;
  max-height: 76vh;
  object-fit: contain;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.9), 0 0 50px rgba(99, 179, 237, 0.12);
  cursor: zoom-in;
  transition: transform 120ms ease-out;
  transform-origin: center center;
  will-change: transform;
  display: block;
}

.lightbox-img.is-zoomed {
  cursor: grab;
}

.lightbox-img.is-zoomed:active {
  cursor: grabbing;
}

/* Didascalia minimale ed elegante */
.lightbox-caption {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(18, 19, 27, 0.65);
  padding: 6px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
  opacity: 0.9;
}

/* ==========================================================================
   RESPONSIVE DESIGN (PROIETTORE 16:9, DESKTOP, TABLET, SMARTPHONE)
   ========================================================================== */

@media (max-width: 768px) {
  .social-nav {
    top: 16px;
    right: 16px;
  }

  .hamburger-btn {
    width: 38px;
    height: 38px;
  }

  .social-menu {
    top: 48px;
    min-width: 190px;
  }

  .quick-hint {
    font-size: 10px;
    padding: 6px 12px;
    bottom: 16px;
    gap: 6px;
  }
  
  .lightbox-close {
    top: 16px;
    right: 16px;
    width: 38px;
    height: 38px;
  }

  /* Badge HUD WAU TECH perfettamente bilanciato al centro del cervello su mobile */
  .brain-hud-badge {
    bottom: -11px;
    padding: 3px 10px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.6), 0 0 10px rgba(56, 189, 248, 0.2);
  }

  .brain-hud-text {
    font-size: 9.5px;
    letter-spacing: 1px;
  }
}