/**
 * CSS Variables - LPG Brasil
 * Definições globais de design system
 */

:root {
  /* ========== CORES ========== */
  
  /* Backgrounds */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a24;
  
  /* Cores de Destaque */
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-secondary: #06b6d4;
  --color-accent: #8b5cf6;
  
  /* Texto */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-tertiary: #64748b;
  
  /* Status */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;
  
  /* ========== GLASSMORPHISM ========== */
  
  --glass-bg: rgba(26, 26, 36, 0.7);
  --glass-bg-hover: rgba(26, 26, 36, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-blur: blur(10px);
  --glass-blur-strong: blur(20px);
  
  /* ========== TIPOGRAFIA ========== */
  
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  
  --font-size-h1: 3.5rem;      /* 56px */
  --font-size-h2: 2.5rem;      /* 40px */
  --font-size-h3: 2rem;        /* 32px */
  --font-size-h4: 1.5rem;      /* 24px */
  --font-size-body: 1rem;      /* 16px */
  --font-size-small: 0.875rem; /* 14px */
  
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.1;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.6;
  
  /* ========== ESPAÇAMENTO ========== */
  
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  
  /* ========== BORDER RADIUS ========== */
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* ========== SOMBRAS ========== */
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.4);
  
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-glow-hover: 0 0 30px rgba(59, 130, 246, 0.5);
  
  /* ========== TRANSIÇÕES ========== */
  
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* ========== BREAKPOINTS (para referência) ========== */
  
  --breakpoint-mobile: 640px;
  --breakpoint-tablet: 1024px;
  --breakpoint-desktop: 1280px;
  
  /* ========== LAYOUT ========== */
  
  --container-max-width: 1280px;
  --header-height: 80px;
}

/* ========== RESPONSIVE VARIABLES ========== */

@media (max-width: 640px) {
  :root {
    --font-size-h1: 2.5rem;   /* 40px */
    --font-size-h2: 2rem;     /* 32px */
    --font-size-h3: 1.5rem;   /* 24px */
    --font-size-h4: 1.25rem;  /* 20px */
    
    --space-2xl: 32px;
    --space-3xl: 48px;
    --space-4xl: 64px;
    
    --header-height: 64px;
  }
}