/* =============================================
   Games Hub - Design System
   Variáveis CSS compartilhadas entre todos os jogos
   ============================================= */

:root {
  /* Cores Primárias */
  --color-primary: #ff6b35;
  --color-primary-dark: #e55a2b;
  --color-secondary: #4ecdc4;
  --color-accent: #ffe66d;

  /* Cores por Categoria */
  --color-cards: #8b5cf6;      /* Roxo - Cartas */
  --color-puzzle: #10b981;     /* Verde - Puzzle */
  --color-arcade: #f59e0b;     /* Laranja - Arcade */
  --color-strategy: #3b82f6;   /* Azul - Estratégia */
  --color-words: #ec4899;      /* Rosa - Palavras */

  /* Cores de Feedback */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Cores Neutras */
  --color-bg: #1a1a2e;
  --color-surface: #16213e;
  --color-surface-light: #0f3460;
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.7);
  --color-border: rgba(255, 255, 255, 0.1);

  /* Tipografia */
  --font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --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: 2rem;

  /* Espaçamento */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;

  /* Bordas */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(255, 107, 53, 0.3);

  /* Animações */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* =============================================
   Componentes Base
   ============================================= */

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
  background: var(--color-surface-light);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  user-select: none;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(255, 107, 53, 0.5);
}

.btn-secondary {
  background: var(--color-surface-light);
  border-color: var(--color-border);
}

.btn-success {
  background: var(--color-success);
}

.btn-whatsapp {
  background: #25d366;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

/* Modais */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 90vw;
  width: 400px;
  text-align: center;
  transform: scale(0.9);
  transition: transform var(--transition-base) var(--bounce);
}

.modal-overlay.show .modal {
  transform: scale(1);
}

.modal-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  animation: bounceIn 0.6s var(--bounce);
}

/* Animações */
@keyframes bounceIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.animate-bounce-in { animation: bounceIn 0.6s var(--bounce); }
.animate-slide-up { animation: slideInUp 0.4s ease; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-shake { animation: shake 0.4s ease; }

/* Utilitários */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsivo */
@media (max-width: 640px) {
  :root {
    --font-size-2xl: 1.25rem;
    --font-size-3xl: 1.5rem;
  }

  .modal {
    width: 90vw;
    padding: var(--space-6);
  }
}