/* ========================================
   DESIGN SYSTEM - DARK/NEON THEME
   Inspirado em sistemas de gamificação
   ======================================== */

/* === ROOT VARIABLES === */
:root {
  /* Cores principais - Dark theme */
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-tertiary: #1a202c;
  --bg-card: #1e293b;
  --bg-card-hover: #252f3f;

  /* Cores neon/accent */
  --neon-pink: #ff006e;
  --neon-cyan: #00f5ff;
  --neon-purple: #b300ff;
  --neon-yellow: #ffed00;
  --neon-orange: #ff6b00;
  --neon-green: #00ff9f;

  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #ff006e 0%, #b300ff 100%);
  --gradient-secondary: linear-gradient(135deg, #00f5ff 0%, #0066ff 100%);
  --gradient-success: linear-gradient(135deg, #00ff9f 0%, #00cc7e 100%);
  --gradient-warning: linear-gradient(135deg, #ffed00 0%, #ff6b00 100%);
  --gradient-danger: linear-gradient(135deg, #ff006e 0%, #cc0055 100%);

  /* Cores de texto */
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-muted: #475569;

  /* Borders */
  --border-color: #2d3748;
  --border-color-hover: #4a5568;
  --border-neon: rgba(255, 0, 110, 0.5);

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  --shadow-neon-pink: 0 0 20px rgba(255, 0, 110, 0.5);
  --shadow-neon-cyan: 0 0 20px rgba(0, 245, 255, 0.5);
  --shadow-neon-purple: 0 0 20px rgba(179, 0, 255, 0.5);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

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

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Orbitron', 'Rajdhani', 'Exo 2', sans-serif;
  --font-mono: 'Fira Code', 'Cascadia Code', 'SF Mono', Monaco, Consolas, monospace;

  /* Font sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
}

/* === RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
.text-display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-neon {
  color: var(--neon-pink);
  text-shadow: 0 0 10px rgba(255, 0, 110, 0.7);
}

.text-glow {
  text-shadow: 0 0 20px currentColor;
}

/* === LAYOUT === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  z-index: 100;
  overflow-y: auto;
  transition: transform var(--transition-base);
}

.sidebar-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
}

.sidebar-nav {
  padding: var(--spacing-md);
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  margin-bottom: var(--spacing-sm);
  position: relative;
  overflow: hidden;
}

.sidebar-nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.sidebar-nav-item:hover,
.sidebar-nav-item.active {
  background: var(--bg-card);
  color: var(--text-primary);
}

.sidebar-nav-item.active::before {
  transform: scaleY(1);
}

.sidebar-nav-item .icon {
  font-size: var(--text-xl);
  width: 24px;
  text-align: center;
}

.main-content {
  margin-left: 280px;
  min-height: 100vh;
  padding: var(--spacing-xl);
  background: var(--bg-primary);
}

/* === CARDS === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-neon {
  border: 1px solid var(--border-neon);
  box-shadow: var(--shadow-neon-pink);
  position: relative;
  overflow: hidden;
}

.card-neon::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  animation: slide-right 3s linear infinite;
}

@keyframes slide-right {
  0% { left: -100%; }
  100% { left: 100%; }
}

.card-gradient {
  background: var(--gradient-primary);
  border: none;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  font-family: var(--font-display);
  letter-spacing: 0.02em;
}

/* === STATS CARDS === */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.stat-card.pink::before {
  background: var(--gradient-primary);
}

.stat-card.cyan::before {
  background: var(--gradient-secondary);
}

.stat-card.green::before {
  background: var(--gradient-success);
}

.stat-card.yellow::before {
  background: var(--gradient-warning);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-md);
  background: var(--bg-tertiary);
}

.stat-value {
  font-size: var(--text-4xl);
  font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--text-base);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-neon-pink);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255, 0, 110, 0.6);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: rgba(255, 0, 110, 0.2);
  color: var(--neon-pink);
  border: 1px solid var(--neon-pink);
}

.badge-success {
  background: rgba(0, 255, 159, 0.2);
  color: var(--neon-green);
  border: 1px solid var(--neon-green);
}

.badge-warning {
  background: rgba(255, 237, 0, 0.2);
  color: var(--neon-yellow);
  border: 1px solid var(--neon-yellow);
}

.badge-danger {
  background: rgba(255, 107, 0, 0.2);
  color: var(--neon-orange);
  border: 1px solid var(--neon-orange);
}

/* === FORMS === */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--neon-pink);
  box-shadow: 0 0 0 3px rgba(255, 0, 110, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* === GRID LAYOUTS === */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.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);
}

/* === LOADING & ANIMATIONS === */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--bg-card);
  border-top-color: var(--neon-pink);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

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

/* === NEON EFFECTS === */
.neon-border {
  border: 2px solid var(--neon-pink);
  box-shadow:
    0 0 5px var(--neon-pink),
    inset 0 0 5px var(--neon-pink);
}

.glow-hover {
  transition: all var(--transition-base);
}

.glow-hover:hover {
  filter: drop-shadow(0 0 10px currentColor);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .grid-cols-4,
  .grid-cols-3,
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1024px) {
  .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);
  }
}

/* === UTILITIES === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mt-auto { margin-top: auto; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.cursor-pointer { cursor: pointer; }