:root {
  /* Paleta de cores modernizada */
  --color-background: #0a0e1a;
  --color-surface: #1a1f2e;
  --color-surface-elevated: #242938;
  --color-text: #e2e8f0;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-active: #1d4ed8;
  --color-secondary: #8b5cf6;
  --color-secondary-hover: #7c3aed;
  --color-accent: #06b6d4;
  --color-accent-hover: #0891b2;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-border: #334155;
  --color-border-light: #475569;
  --color-focus-ring: rgba(59, 130, 246, 0.5);
  --color-glass: rgba(255, 255, 255, 0.05);
  --color-glass-border: rgba(255, 255, 255, 0.1);

  /* Gradientes modernos */
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-accent: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  --gradient-surface: linear-gradient(135deg, #1a1f2e 0%, #242938 100%);

  /* Tipografia melhorada */
  --font-family-base: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-heading: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Espaçamento */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-base: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  /* Sombras modernas */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-glow-accent: 0 0 30px rgba(139, 92, 246, 0.4);

  /* Animações */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;
  --duration-slower: 500ms;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

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

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

body {
  font-family: var(--font-family-base);
  background: var(--color-background);
  color: var(--color-text);
  line-height: var(--line-height-normal);
  position: relative;
  min-height: 100vh;
}

/* Fundo animado com partículas */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

/* Barra de progresso melhorada */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-surface);
  z-index: var(--z-fixed);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  transition: width var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: progressShimmer 2s infinite;
}

@keyframes progressShimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Container principal */
.presentation-container {
  width: 100vw;
  min-height: 100vh;
  position: relative;
}

/* Slides */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateX(100px);
  transition: all var(--duration-slow) var(--ease-out);
  padding: var(--space-8);
  padding-bottom: 120px; /* Espaço para controles de navegação */
  background: var(--gradient-surface);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  overflow-y: auto;
  overflow-x: hidden;
}

.slide.active {
  opacity: 1;
  transform: translateX(0);
}

.slide.prev {
  transform: translateX(-100px);
}

/* Layout de duas colunas */
.slide-content {
  display: block; /* Mudando de flex para block para melhor fluxo */
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: var(--space-8) 0;
}

.content-column {
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

/* Para slides com duas colunas, usar flexbox apenas quando necessário */
.slide-content.two-columns {
  display: flex;
  flex-direction: row;
  gap: var(--space-8);
}

.slide-content.two-columns .content-column {
  flex: 1;
  margin-bottom: 0;
}

.slide-content.two-columns .content-column:first-child {
  padding-right: var(--space-8);
}

.slide-content.two-columns .content-column:last-child {
  padding-left: var(--space-8);
}

/* Texto dos slides */
.slide p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  text-align: justify;
}

/* Imagens */
.image-container {
  text-align: center;
  margin: var(--space-8) 0;
}

.image-container img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transition: transform var(--duration-normal) var(--ease-out);
}

.image-container img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow);
}

.image-caption {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  font-style: italic;
}

/* Controles de navegação */
.navigation-controls {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-full);
  padding: var(--space-4) var(--space-8);
  z-index: var(--z-fixed);
  box-shadow: var(--shadow-lg);
}

.nav-button {
  background: var(--gradient-primary);
  color: var(--color-text);
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}

.nav-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav-button:active {
  transform: translateY(0);
}

.nav-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.nav-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--duration-normal) var(--ease-out);
}

.nav-button:hover::before {
  left: 100%;
}

/* Contador de slides */
.slide-counter {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  background: var(--color-surface-elevated);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

/* Indicadores de slides */
.slide-indicators {
  display: flex;
  gap: var(--space-2);
  margin: 0 var(--space-4);
}

.slide-indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.slide-indicator.active {
  background: var(--color-primary);
  transform: scale(1.2);
}

.slide-indicator:hover {
  background: var(--color-primary-hover);
  transform: scale(1.1);
}

/* Responsividade */
@media (max-width: 768px) {
  .slide {
    padding: var(--space-4);
  }
  
  .slide-content {
    flex-direction: column;
    padding: var(--space-4) 0;
  }
  
  .content-column {
    padding: var(--space-4);
  }
  
  .slide-content .content-column:first-child,
  .slide-content .content-column:last-child {
    padding: var(--space-4);
  }
  
  .title-slide h1 {
    font-size: var(--font-size-4xl);
  }
  
  .title-slide h2 {
    font-size: var(--font-size-2xl);
  }
  
  .slide h1 {
    font-size: var(--font-size-3xl);
  }
  
  .slide p {
    font-size: var(--font-size-base);
  }
  
  .navigation-controls {
    bottom: var(--space-4);
    padding: var(--space-3) var(--space-6);
    gap: var(--space-4);
  }
  
  .nav-button {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
  }
}

/* Animações de entrada */
.slide.entering {
  animation: slideEnter var(--duration-slow) var(--ease-out);
}

.slide.exiting {
  animation: slideExit var(--duration-slow) var(--ease-out);
}

@keyframes slideEnter {
  from {
    opacity: 0;
    transform: translateX(100px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes slideExit {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(-100px) scale(0.95);
  }
}

/* Estados de foco para acessibilidade */
.nav-button:focus-visible,
.slide-indicator:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Modo escuro aprimorado */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #030712;
    --color-surface: #111827;
    --color-surface-elevated: #1f2937;
  }
}

/* Redução de movimento para acessibilidade */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Melhorias para impressão */
@media print {
  .progress-bar,
  .navigation-controls {
    display: none;
  }
  
  .slide {
    position: static;
    opacity: 1;
    transform: none;
    page-break-after: always;
    background: white;
    color: black;
  }
}



/* Estilos para tabelas */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-8) 0;
  background: var(--color-surface-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

thead {
  background: var(--gradient-primary);
}

thead th {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
  padding: var(--space-4) var(--space-3);
  text-align: left;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--duration-fast) var(--ease-out);
}

tbody tr:hover {
  background: var(--color-glass);
}

tbody tr:last-child {
  border-bottom: none;
}

tbody td {
  padding: var(--space-3) var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  vertical-align: top;
}

tbody td:first-child {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

/* Estilos específicos para diferentes tipos de células */
.table-cell-high {
  color: var(--color-success);
  font-weight: var(--font-weight-medium);
}

.table-cell-medium {
  color: var(--color-warning);
  font-weight: var(--font-weight-medium);
}

.table-cell-low {
  color: var(--color-error);
  font-weight: var(--font-weight-medium);
}

/* Tabela responsiva */
.table-container {
  overflow-x: auto;
  margin: var(--space-6) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* Melhorias para tabelas em mobile */
@media (max-width: 768px) {
  table {
    font-size: var(--font-size-xs);
  }
  
  thead th,
  tbody td {
    padding: var(--space-2);
  }
  
  .table-container {
    margin: var(--space-4) 0;
  }
}

/* Estilos para listas de critérios */
.criteria-section {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  border-left: 4px solid var(--color-primary);
}

.criteria-section h3 {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
}

.criteria-section h4 {
  color: var(--color-text);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: var(--space-4) 0 var(--space-2) 0;
}

.criteria-section ul {
  list-style: none;
  padding: 0;
}

.criteria-section li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.criteria-section li:last-child {
  border-bottom: none;
}

.criteria-section li::before {
  content: '▶';
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  margin-top: 2px;
  flex-shrink: 0;
}

.criteria-section strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

/* Estilos para destacar informações importantes */
.highlight-box {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
}

.highlight-box h3 {
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.highlight-box p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}



/* Estilos para slides de conclusão e referências */
.conclusion-slide {
  line-height: var(--line-height-relaxed);
}

.conclusion-slide h2,
.conclusion-slide h3 {
  color: var(--color-primary);
  margin: var(--space-8) 0 var(--space-4) 0;
  font-weight: var(--font-weight-bold);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--space-2);
}

.conclusion-slide h2 {
  font-size: var(--font-size-2xl);
}

.conclusion-slide h3 {
  font-size: var(--font-size-xl);
}

/* Listas mais organizadas */
.conclusion-slide ul {
  list-style: none;
  padding: 0;
  margin: var(--space-6) 0;
}

.conclusion-slide li {
  background: var(--color-surface-elevated);
  margin: var(--space-3) 0;
  padding: var(--space-4);
  border-radius: var(--radius-base);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.conclusion-slide li:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.conclusion-slide li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  margin-right: var(--space-3);
  font-size: var(--font-size-lg);
}

/* Seções de referências - versão sóbria */
.references-section {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  border: 1px solid var(--color-border);
}

.references-section h3 {
  color: var(--color-text);
  margin-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-border);
}

.references-section ul {
  margin: 0;
}

.references-section li {
  background: transparent;
  border-left: 3px solid var(--color-border);
  margin: var(--space-2) 0;
  padding: var(--space-3);
  font-size: var(--font-size-sm);
}

.references-section li::before {
  content: '▪';
  margin-right: var(--space-2);
  color: var(--color-text-muted);
}

.references-section li:hover {
  background: var(--color-glass);
  transform: none;
}

/* Links nas referências */
.references-section a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.references-section a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* Seção de síntese destacada - versão sóbria */
.synthesis-section {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--color-primary);
}

.synthesis-section h3 {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: var(--space-4);
}

.synthesis-section li {
  background: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-base);
}

.synthesis-section li::before {
  content: '▶';
  color: var(--color-primary);
}

/* Melhores práticas destacadas - versão sóbria */
.best-practices-section {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  border: 2px solid var(--color-text-muted);
}

.best-practices-section h3 {
  color: var(--color-text);
  border-bottom: 2px solid var(--color-text-muted);
}

.best-practices-section li {
  border-left: 4px solid var(--color-text-muted);
}

.best-practices-section li::before {
  content: '•';
  color: var(--color-text-muted);
}

/* Espaçamento melhorado para parágrafos */
.conclusion-slide p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

/* Cards para organizar melhor o conteúdo */
.content-card {
  background: var(--color-surface-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-4) 0;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.content-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.content-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--space-3);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

/* Responsividade para slides de conclusão */
@media (max-width: 768px) {
  .conclusion-slide h2 {
    font-size: var(--font-size-xl);
  }
  
  .conclusion-slide h3 {
    font-size: var(--font-size-lg);
  }
  
  .conclusion-slide li {
    padding: var(--space-3);
    font-size: var(--font-size-sm);
  }
  
  .references-section,
  .synthesis-section,
  .best-practices-section,
  .content-card {
    padding: var(--space-4);
    margin: var(--space-3) 0;
  }
}