/**
 * CSS Variables and Base Styles
 * Core design system for NUNEXX Climatização
 */

:root {
    /* 🎨 Color Palette - Climate & Trust */
    --brand-blue: #00AEEF;
    --brand-dark: #003366;
    --brand-metallic: #B0BEC5;
    --brand-light: #CFD8DC;
    --white: #ffffff;
    --action-blue: #0066CC;
    --action-blue-dark: #004A99;
    --action-green: #168344;
    --action-green-dark: #0B6F2C;
    --focus-color: #FFC857;
    
    /* Support Colors */
    --bg-primary: #f8fafb;
    --bg-secondary: #e3f2fd;
    --dark-bg: var(--brand-dark);
    --text-primary: #003366;
    --text-secondary: #455a64;
    --text-light: #607d8b;
    --text-muted: #90a4ae;
    
    /* Gradients */
    --gradient: linear-gradient(135deg, #00AEEF 0%, #003366 100%);
    --gradient-light: linear-gradient(135deg, #f8fafb 0%, #e3f2fd 100%);
    --gradient-accent: linear-gradient(135deg, #00AEEF 0%, #0288d1 100%);
    --gradient-action: linear-gradient(135deg, var(--action-blue) 0%, var(--action-blue-dark) 100%);
    --gradient-success: linear-gradient(135deg, var(--action-green) 0%, var(--action-green-dark) 100%);
    --gradient-metallic: linear-gradient(135deg, #B0BEC5 0%, #90a4ae 100%);
    
    /* Shadows */
    --shadow-light: 0 2px 8px rgba(0, 174, 239, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 51, 102, 0.15);
    --shadow-heavy: 0 8px 32px rgba(0, 51, 102, 0.2);
    --shadow-accent: 0 4px 15px rgba(0, 174, 239, 0.3);
    
    /* Borders */
    --border-subtle: rgba(0, 174, 239, 0.1);
    --border-light: rgba(0, 51, 102, 0.1);
    --border-accent: rgba(0, 174, 239, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Layout Variables */
    --section-padding: 4rem;
    --container-padding: 1rem;
    --site-header-height: 4.5rem;
    --site-header-gap: 1.25rem;
    --layer-header: 1020;
    --bg-color: var(--bg-primary);
    --text-color: var(--text-primary);
    --font-primary: var(--font-family);
    
    /* Core Colors */
    --primary-color: var(--brand-blue);
    --secondary-color: var(--brand-dark);
    --accent-color: #FFC107;
    --accent-hover: #FFB300;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    width: 100%;
    max-width: 100%;
}

/* Body styles moved to layout/main.css to avoid duplication */