/**
 * CAIO Design System v2.0
 * Marcos Troyjo Digital Twin Brand Guidelines
 * Observatório de Políticas Públicas Implementation
 * 
 * Core Principles:
 * - Clarity: Immediate understanding of complex data
 * - Credibility: Institutional weight and trust
 * - Sophistication: Premium, high-level discourse
 */

:root {
  /* ============================================
     CAIO Color Palette
     ============================================ */
  
  /* Abyss Blue (Primary) - Depth & Intelligence */
  --abyss-blue-50: #e6f0ff;
  --abyss-blue-100: #b3d9ff;
  --abyss-blue-200: #80c2ff;
  --abyss-blue-400: #1a6bd9;
  --abyss-blue-500: #06101f; /* BASE */
  --abyss-blue-600: #050d19;
  --abyss-blue-700: #040a13;
  --abyss-blue-800: #03070d;
  --abyss-blue-900: #020407;

  /* Electric Cyan (Accent) - Technology & Future */
  --electric-cyan-50: #e6f9ff;
  --electric-cyan-100: #b3f0ff;
  --electric-cyan-200: #80e7ff;
  --electric-cyan-400: #00d4ff; /* BASE */
  --electric-cyan-500: #00d4ff;
  --electric-cyan-600: #00aacc;
  --electric-cyan-700: #008099;
  --electric-cyan-900: #002b33;

  /* Metallic Gold (Premium) - Value & Prestige */
  --metallic-gold-50: #f9f5ed;
  --metallic-gold-100: #f0e6d1;
  --metallic-gold-200: #e7d7b5;
  --metallic-gold-400: #d5b87e;
  --metallic-gold-500: #c7a763; /* BASE */
  --metallic-gold-600: #b8984f;
  --metallic-gold-700: #8f773d;
  --metallic-gold-900: #3d3319;

  /* ============================================
     Semantic Mappings
     ============================================ */
  --primary: var(--abyss-blue-500);
  --primary-inverse: #ffffff;
  --accent: var(--electric-cyan-500);
  --premium: var(--metallic-gold-500);
  --text-body: #333f48;
  --bg-page: #fafafa;
  --bg-card: #ffffff;
  --border-light: #e5e7eb;

  /* ============================================
     Spacing & Layout
     ============================================ */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
}

/* ============================================
   Global Reset & Typography
   ============================================ */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-body);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--abyss-blue-500);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  line-height: 1.1;
}

h2 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h3 {
  font-size: 1.875rem;
  font-weight: 600;
  line-height: 1.3;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--abyss-blue-500) 0%, #0a1b2e 100%);
  color: white;
  padding: 6rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  border-radius: 50%;
  filter: blur(40px);
}

.hero h1 {
  color: white;
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.hero p.subtitle {
  font-size: 1.5rem;
  color: var(--electric-cyan-100);
  font-weight: 300;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.version-badge {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 2rem;
}

.powered-by {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 3rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================
   Buttons (CAIO Components)
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  gap: 0.5rem;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--abyss-blue-500);
  color: white;
}

.btn-primary:hover {
  background-color: var(--abyss-blue-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(6, 16, 31, 0.3);
}

.btn-secondary {
  background-color: var(--electric-cyan-400);
  color: var(--abyss-blue-900);
  font-weight: 600;
}

.btn-secondary:hover {
  background-color: var(--electric-cyan-200);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--abyss-blue-500);
  color: var(--abyss-blue-500);
}

.btn-outline:hover {
  background-color: var(--abyss-blue-50);
  border-color: var(--abyss-blue-600);
}

.btn-premium {
  background: linear-gradient(135deg, var(--metallic-gold-400) 0%, var(--metallic-gold-600) 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(199, 167, 99, 0.3);
}

.btn-premium:hover {
  box-shadow: 0 6px 20px rgba(199, 167, 99, 0.4);
  transform: translateY(-2px);
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.card-glow {
  border-color: var(--electric-cyan-200);
  box-shadow: 0 0 0 0 rgba(0, 212, 255, 0);
  transition: all 0.3s ease;
}

.card-glow:hover {
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.25);
  border-color: var(--electric-cyan-400);
}

.card-premium {
  border-color: var(--metallic-gold-400);
  background: linear-gradient(to bottom right, #fff, #fffcf5);
}

.card-header {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--abyss-blue-500);
  margin: 0;
}

/* ============================================
   Badges & Status
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  gap: 0.25rem;
  transition: all 0.2s ease;
}

.badge:hover {
  transform: scale(1.05);
}

.badge-cyan {
  background: var(--electric-cyan-50);
  color: var(--electric-cyan-700);
  border: 1px solid var(--electric-cyan-200);
}

.badge-gold {
  background: var(--metallic-gold-50);
  color: var(--metallic-gold-700);
  border: 1px solid var(--metallic-gold-200);
}

.badge-abyss {
  background: var(--abyss-blue-50);
  color: var(--abyss-blue-700);
  border: 1px solid var(--abyss-blue-200);
}

/* ============================================
   Stats Cards
   ============================================ */
.stat-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border-left: 4px solid;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}

.stat-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.stat-card-blue {
  border-left-color: var(--abyss-blue-500);
}

.stat-card-cyan {
  border-left-color: var(--electric-cyan-400);
}

.stat-card-gold {
  border-left-color: var(--metallic-gold-500);
}

.stat-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  color: #6b7280;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--abyss-blue-500);
  margin: 0.5rem 0;
}

.stat-icon {
  font-size: 2rem;
  opacity: 0.8;
}

/* ============================================
   Forms & Inputs
   ============================================ */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--abyss-blue-500);
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--abyss-blue-200);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--electric-cyan-400);
  box-shadow: 0 0 0 3px var(--electric-cyan-100);
}

/* ============================================
   Animations & Effects
   ============================================ */
@keyframes glow-cyan {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(0, 212, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 212, 255, 0);
  }
}

@keyframes glow-gold {
  0% {
    box-shadow: 0 0 0 0 rgba(199, 167, 99, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(199, 167, 99, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(199, 167, 99, 0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.animate-glow-cyan {
  animation: glow-cyan 2s infinite;
}

.animate-glow-gold {
  animation: glow-gold 2s infinite;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ============================================
   Utility Classes
   ============================================ */
.bg-gradient-caio {
  background: linear-gradient(135deg, var(--abyss-blue-500) 0%, var(--electric-cyan-900) 100%);
}

.bg-gradient-caio-light {
  background: linear-gradient(135deg, var(--abyss-blue-50) 0%, var(--electric-cyan-50) 100%);
}

.text-primary {
  color: var(--abyss-blue-500);
}

.text-accent {
  color: var(--electric-cyan-500);
}

.text-premium {
  color: var(--metallic-gold-500);
}

.border-accent {
  border-color: var(--electric-cyan-400);
}

.shadow-glow-cyan {
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.shadow-glow-gold {
  box-shadow: 0 0 15px rgba(199, 167, 99, 0.3);
}

/* ============================================
   Responsive Grid
   ============================================ */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p.subtitle {
    font-size: 1.25rem;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
}

/* ============================================
   Accessibility
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Ensure focus states are visible */
*:focus-visible {
  outline: 2px solid var(--electric-cyan-400);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn {
    border: 2px solid currentColor;
  }
  
  .card {
    border-width: 2px;
  }
}

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