/* ===========================================
   PRESENTATION BASE CSS
   Stili base condivisi tra presenter e viewer
   Gli stili specifici sono in:
   - presentation-presenter.css
   - presentation-public.css
   - presentation-animations.css
   =========================================== */

:root {
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --accent-color: #ec4899;
  --bg-dark: #0a0e1a;
  --bg-light: #1a1f35;
  --bg-card: #141824;
  --text-primary: #ffffff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --success: #10b981;
  --danger: #ef4444;
  --glow-primary: rgba(99, 102, 241, 0.4);
  --glow-accent: rgba(236, 72, 153, 0.3);
}

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

html {
  overscroll-behavior: none;
  -webkit-overflow-scrolling: touch;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  overflow: hidden;
  line-height: 1.6;
  touch-action: pan-y pinch-zoom;
  -webkit-tap-highlight-color: transparent;
}

html.print-mode,
body.print-mode {
  overflow: auto;
  height: auto;
}

/* ===========================================
   CONTAINER PRINCIPALE
   =========================================== */
.presentation-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  top: 0;
  left: 0;
  background: radial-gradient(ellipse at top, #1a1f35 0%, #0a0e1a 100%);
  color: var(--text-primary);
  overflow: hidden;
}

.presentation-container.print-mode {
  position: relative;
  min-height: 100vh;
  height: auto;
  overflow: visible;
  align-items: flex-start;
  padding: 2rem 0;
}

.presentation-container.print-mode::before {
  animation: none;
  opacity: 0.12;
}

.presentation-container::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 50%, var(--glow-primary) 0%, transparent 50%), 
                    radial-gradient(circle at 80% 80%, var(--glow-accent) 0%, transparent 50%);
  opacity: 0.15;
  animation: pulse 10s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.25; }
}

/* ===========================================
   LOADING & ERROR
   =========================================== */
.loading, .error {
  text-align: center;
  padding: 3rem;
  z-index: 10;
}

.error-detail {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 1rem;
  font-family: monospace;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===========================================
   SLIDE WRAPPER
   =========================================== */
.slide-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  outline: none;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
}

/* Container per presenter e public mode */
.presenter-mode .slide,
.public-mode .slide {
  position: relative;
  z-index: 1;
}

.presenter-mode .slide {
  width: 95vw;
  height: 95vh;
}

.public-mode .slide {
  width: 92vw;
  height: 92vh;
}

/* ===========================================
   MUD BLAZOR OVERRIDES
   =========================================== */
.mud-popover.mud-popover-open {
  background: var(--bg-card, rgba(20, 24, 36, 0.98)) !important;
  backdrop-filter: blur(20px) !important;
  border: 1px solid rgba(255, 255, 255, 0.15) !important;
  border-radius: 12px !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5) !important;
  z-index: 999999 !important;
}

.mud-popover-provider {
  z-index: 999999 !important;
}

.mud-list.mud-list-padding {
  padding: 8px !important;
}

.mud-list-item {
  border-radius: 8px !important;
  margin-bottom: 4px !important;
  color: var(--text-primary, #ffffff) !important;
  transition: all 0.2s ease !important;
  padding: 10px 16px !important;
}

.mud-list-item:hover {
  background: rgba(99, 102, 241, 0.2) !important;
}

.mud-list-item.mud-selected-item {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(139, 92, 246, 0.3)) !important;
  color: white !important;
  font-weight: 600 !important;
}

.mud-button-custom.mud-button-filled {
  background-color: transparent !important;
}

.mud-button-custom .mud-button-label {
  color: white !important;
}

/* ===========================================
   SCROLLBAR GLOBALE
   =========================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
  border-radius: 10px;
  box-shadow: 0 0 10px var(--glow-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--secondary-color), var(--accent-color));
}

/* ===========================================
   TEMA LIGHT
   =========================================== */
[data-theme="light"] .presentation-container {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%) !important;
}

[data-theme="light"] .presentation-container::before {
  background-image: radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.1) 0%, transparent 50%), 
                    radial-gradient(circle at 80% 80%, rgba(255, 140, 66, 0.1) 0%, transparent 50%);
}

[data-theme="light"] .spinner {
  border-color: rgba(0, 0, 0, 0.1) !important;
  border-top-color: #ff6b35 !important;
}

[data-theme="light"] .loading p,
[data-theme="light"] .error p {
  color: #475569 !important;
}

[data-theme="light"] .mud-popover.mud-popover-open {
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.1) !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15) !important;
}

[data-theme="light"] .mud-list-item {
  color: #0f172a !important;
}

[data-theme="light"] .mud-list-item:hover {
  background: rgba(255, 107, 53, 0.1) !important;
}

[data-theme="light"] .mud-list-item.mud-selected-item {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(247, 147, 30, 0.2)) !important;
  color: #0f172a !important;
}

/* ===========================================
   MUD DIALOG OVERRIDES - Z-INDEX FIX
   =========================================== */
.mud-overlay {
  z-index: 99990 !important;
}

.mud-overlay-scrim {
  z-index: 99991 !important;
}

.mud-dialog-container {
  z-index: 99999 !important;
  position: fixed !important;
}

.mud-dialog {
  background: var(--bg-card, #141824) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  border-radius: 16px !important;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6) !important;
  z-index: 100000 !important;
  position: relative !important;
  /* Rimuove trasparenza per migliore leggibilità */
  opacity: 1 !important;
  backdrop-filter: none !important;
}

/* Assicura che il contenuto del dialog sia interattivo */
.mud-dialog,
.mud-dialog * {
  pointer-events: auto !important;
}

/* Le MudCard nel dialog mantengono la trasparenza per coerenza visiva */
.mud-dialog .mud-card {
  background: rgba(255, 255, 255, 0.05) !important;
  color: var(--text-primary, #ffffff) !important;
}

.mud-dialog .mud-card:hover {
  background: rgba(99, 102, 241, 0.15) !important;
}

.mud-dialog .mud-card.active {
  background: rgba(99, 102, 241, 1) !important;
  border: 2px solid var(--primary-color, #6366f1) !important;
}

.mud-dialog .mud-card .mud-card-content {
  color: var(--text-primary, #ffffff) !important;
}

.mud-dialog .mud-typography {
  color: var(--text-primary, #ffffff) !important;
}

.mud-dialog .mud-dialog-title {
  color: var(--text-primary, #ffffff) !important;
  font-weight: 700 !important;
  padding: 1.25rem 1.5rem !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.08)) !important;
}

.mud-dialog .mud-dialog-content {
  padding: 0.2rem !important;
  color: var(--text-primary, #ffffff) !important;
  background: var(--bg-card, #141824) !important;
}

.mud-dialog .mud-dialog-actions {
  padding: 1rem 1.5rem !important;
  border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
  justify-content: flex-end !important;
  background: var(--bg-card, #141824) !important;
}

/* Light theme dialogs - sfondo opaco anche qui */
[data-theme="light"] .mud-dialog {
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.1) !important;
}

[data-theme="light"] .mud-dialog .mud-card {
  background: #ffffff !important;
  color: #0f172a !important;
  border: 1px solid #e5e7eb !important;
}

[data-theme="light"] .mud-dialog .mud-card:hover {
  background: #f9fafb !important;
}

[data-theme="light"] .mud-dialog .mud-card.active {
  background: #e0e7ff !important;
  border: 2px solid #6366f1 !important;
}

[data-theme="light"] .mud-dialog .mud-card .mud-card-content {
  color: #0f172a !important;
}

[data-theme="light"] .mud-dialog .mud-typography {
  color: #0f172a !important;
}

[data-theme="light"] .mud-dialog .mud-dialog-title {
  color: #0f172a !important;
  border-bottom-color: rgba(0, 0, 0, 0.08) !important;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.04)) !important;
}

[data-theme="light"] .mud-dialog .mud-dialog-content {
  color: #0f172a !important;
  background: #ffffff !important;
}

[data-theme="light"] .mud-dialog .mud-dialog-actions {
  border-top-color: rgba(0, 0, 0, 0.08) !important;
  background: #ffffff !important;
}

/* Dark Image theme dialogs - maggiore contrasto */
[data-theme="dark-image"] .mud-dialog {
  background: rgba(10, 14, 26, 0.98) !important;
  backdrop-filter: blur(20px) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.8) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-card {
  background: rgba(20, 24, 36, 0.9) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-card:hover {
  background: rgba(30, 34, 46, 0.95) !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-card.active {
  background: rgba(99, 102, 241, 0.4) !important;
  border: 2px solid #818cf8 !important;
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.5) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-card .mud-card-content {
  color: #ffffff !important;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-typography {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-dialog-title {
  color: #ffffff !important;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(139, 92, 246, 0.15)) !important;
  border-bottom-color: rgba(255, 255, 255, 0.15) !important;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-dialog-content {
  color: #ffffff !important;
  background: rgba(10, 14, 26, 0.95) !important;
}

[data-theme="dark-image"] .mud-dialog .mud-dialog-actions {
  background: rgba(10, 14, 26, 0.95) !important;
  border-top-color: rgba(255, 255, 255, 0.15) !important;
}

/* Migliora l'allineamento del pulsante Google Calendar */
.calendar-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    padding: 0.75em 1.5em;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    background: #fff;
    color: #1a73e8;
    border: 2px solid #1a73e8;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}

.calendar-button:hover {
    background: #1a73e8;
    color: #fff;
}

.calendar-icon {
    display: inline-block;
    vertical-align: middle;
    margin-right: 0.5em;
}

/* Centra orizzontalmente il pulsante Google Calendar */
.calendar-button-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
}

/* Forza la larghezza piena e nessun padding/margine laterale per i contenitori del pulsante */
.learn-card {
    width: 100%;
}

.learn-content {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
}

/* Uniforma altezza e stile dei pulsanti in fondo pagina */
.bottom-nav-button,
.footer-button,
button.bottom-nav,
button.footer-nav,
button[data-bottom-nav],
button[data-footer-nav] {
    min-height: 48px;
    padding: 0 1.5rem;
    font-size: 1rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

/* Se i pulsanti sono in un contenitore flex, allinea anche i figli */
.bottom-nav-container,
.footer-nav-container {
    display: flex;
    gap: 1rem;
    align-items: stretch;
}

/* Fix: il pulsante Google Calendar va sempre sotto il testo, centrato, anche su desktop */
.what-learn-section .learn-card {
    flex-wrap: wrap;
}

.calendar-button-wrap {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-basis: 100%;
    margin-top: 1.5rem;
}

/* Stile per il contenuto libero delle slide (alternativo ai bullets) */
.slide-content-text {
  font-size: 1.25rem;
  line-height: 1.8;
  color: inherit;
  margin-top: 1rem;
}

  .slide-content-text p {
    font-size: 1.45rem;
    margin-bottom: 1rem;
  }

.slide-content-text strong {
    font-weight: 700;
    color: var(--primary-color, #6366f1);
}

.slide-content-text em {
    font-style: italic;
    opacity: 0.9;
}

/* Theme light */
[data-theme="light"] .slide-content-text strong {
    color: var(--color-primary-orange, #FF6B35);
}

/* Fix tooltip text color in light theme */
[data-theme="light"] .mud-tooltip,
[data-theme="light"] .mud-tooltip-root,
[data-theme="light"] .mud-tooltip-content {
    color: #ffffff !important;
}

[data-theme="light"] .mud-tooltip .mud-typography {
    color: #ffffff !important;
}

/* Loading Screen Anti-Flickering */
.presentation-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease-out;
}

.loading-content {
    text-align: center;
    color: white;
    max-width: 400px;
    padding: 2rem;
}

.loading-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
}

.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid #8b5cf6;
    border-radius: 50%;
    animation: spin 1.2s linear infinite;
}

.spinner-ring:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 10px;
    left: 10px;
    border-top-color: #a855f7;
    animation-duration: 1s;
    animation-direction: reverse;
}

.spinner-ring:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 20px;
    left: 20px;
    border-top-color: #c084fc;
    animation-duration: 0.8s;
}

.loading-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loading-content p {
    font-size: 1rem;
    color: #cbd5e1;
    margin: 0;
    opacity: 0.8;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Preload delle immagini per evitare flickering */
.slide-image-preload {
    position: absolute;
    top: -9999px;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

/* Smooth transition per il contenuto */
.presentation-container:not(.loading) {
    animation: slideIn 0.4s ease-out;
}

.presentation-container.print-mode:not(.loading) {
    animation: none;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Light theme per loading */
[data-theme="light"] .presentation-loading {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

[data-theme="light"] .loading-content h3 {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .loading-content p {
    color: #475569;
}

[data-theme="light"] .spinner-ring {
    border-top-color: #ff6b35;
}

[data-theme="light"] .spinner-ring:nth-child(2) {
    border-top-color: #f7931e;
}

[data-theme="light"] .spinner-ring:nth-child(3) {
    border-top-color: #fb923c;
}

@media print {
  @page {
    size: A4 portrait;
    margin: 14mm 12mm 16mm 12mm;
  }

  html,
  body {
    width: auto !important;
    height: auto !important;
    overflow: visible !important;
    background: #ffffff !important;
  }

  body {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }

  .presentation-container {
    position: static !important;
    width: auto !important;
    min-height: auto !important;
    height: auto !important;
    overflow: visible !important;
    padding: 0 !important;
    background: transparent !important;
  }

  .presentation-container::before,
  .presentation-loading,
  .mud-popover-provider,
  .mud-snackbar-provider,
  .mud-dialog-container,
  .mud-overlay {
    display: none !important;
  }
}