/* ===== VARIÁVEIS CSS ===== */
:root {
  /* Cores Principais */
  --azul-principal: #538BE1;
  --azul-secundario: #6EA4E9;
  --azul-claro: #89BCF0;
  --azul-pastel: #A4D5F8;
  --azul-gelo: #BFEDFF;
  --preto-profundo: #1A1F1E;
  --branco-neve: #F9F9F9;
  --cinza-claro: #EAEAEA;
  
  /* Cores Complementares */
  --verde-sucesso: #28a745;
  --vermelho-erro: #dc3545;
  --amarelo-aviso: #ffc107;
  --laranja-destaque: #fd7e14;
  
  /* Gradientes */
  --gradiente-azul: linear-gradient(135deg, var(--azul-principal), var(--azul-secundario));
  --gradiente-azul-claro: linear-gradient(135deg, var(--azul-claro), var(--azul-pastel));
  --gradiente-overlay: linear-gradient(rgba(83, 139, 225, 0.8), rgba(110, 164, 233, 0.8));
  
  /* Tipografia */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Tamanhos de Fonte */
  --font-xs: 0.75rem;    /* 12px */
  --font-sm: 0.875rem;   /* 14px */
  --font-base: 1rem;     /* 16px */
  --font-lg: 1.125rem;   /* 18px */
  --font-xl: 1.25rem;    /* 20px */
  --font-2xl: 1.5rem;    /* 24px */
  --font-3xl: 1.875rem;  /* 30px */
  --font-4xl: 2.25rem;   /* 36px */
  --font-5xl: 3rem;      /* 48px */
  --font-6xl: 3.75rem;   /* 60px */
  
  /* Pesos de Fonte */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Espaçamentos */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */
  --spacing-5xl: 8rem;     /* 128px */
  
  /* Bordas */
  --border-radius-sm: 0.375rem;  /* 6px */
  --border-radius-md: 0.5rem;    /* 8px */
  --border-radius-lg: 0.75rem;   /* 12px */
  --border-radius-xl: 1rem;      /* 16px */
  --border-radius-2xl: 1.5rem;   /* 24px */
  --border-radius-full: 9999px;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  
  /* Transições */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Breakpoints (para uso em JavaScript) */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
  
  /* Altura mínima das seções */
  --section-min-height: 100vh;
  --section-padding: var(--spacing-4xl) 0;
  
  /* Largura máxima do container */
  --container-max-width: 1200px;
  
  /* Efeitos especiais */
  --blur-sm: blur(4px);
  --blur-md: blur(8px);
  --blur-lg: blur(16px);
  
  /* Animações */
  --animation-bounce: bounce 1s infinite;
  --animation-pulse: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  --animation-spin: spin 1s linear infinite;
  --animation-ping: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}


/* ===== KEYFRAMES PARA ANIMAÇÕES ===== */
@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

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

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

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

@keyframes slideInUp {
  from {
    transform: translate3d(0, 100%, 0);
    visibility: visible;
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInDown {
  from {
    transform: translate3d(0, -100%, 0);
    visibility: visible;
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInLeft {
  from {
    transform: translate3d(-100%, 0, 0);
    visibility: visible;
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInRight {
  from {
    transform: translate3d(100%, 0, 0);
    visibility: visible;
  }
  to {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale3d(0.3, 0.3, 0.3);
  }
  50% {
    opacity: 1;
  }
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}