/* HVEX Design System - Base Styles */
:root {
    /* Cores Principais */
    --hvex-blue: #1a4d8c;
    --hvex-blue-dark: #0e3a6b;
    --hvex-blue-light: #e8f0fa;
    --hvex-orange: #ff6b35;
    --hvex-orange-dark: #e55a2c;
    --hvex-gray: #6c757d;
    --hvex-gray-light: #f8f9fa;
    --hvex-gray-dark: #343a40;
    --hvex-success: #28a745;
    --hvex-danger: #dc3545;
    --hvex-warning: #ffc107;
    --hvex-info: #17a2b8;
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordas */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transições */
    --transition-fast: 150ms;
    --transition-base: 250ms;
    --transition-slow: 350ms;
    
    /* Fontes */
    --font-family-sans: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'Courier New', monospace;
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-modal: 2000;
    --z-tooltip: 3000;
}

/* Reset e Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    color: var(--hvex-gray-dark);
    background-color: #f5f7fb;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Tipografia */
h1, h2, h3, h4