/* ==========================================================================
   Voltika Configurador - CSS Custom Properties
   All variables prefixed with --vk- to prevent conflicts with host site
   ========================================================================== */

:root {
    /* Brand Colors — Voltika primary #039fe1 */
    --vk-green-primary: #039fe1;
    --vk-green-dark: #027db0;
    --vk-green-light: #E0F4FD;
    --vk-green-banner: #039fe1;
    --vk-green-check: #05aff5;
    --vk-green-soft: #F0FAFF;

    /* Credit flow (same brand blue) */
    --vk-blue-primary: #039fe1;
    --vk-blue-light: #E0F4FD;

    /* Badge */
    --vk-badge-yellow: #FFD700;
    --vk-badge-yellow-bg: #FFF8DC;

    /* Text */
    --vk-text-primary: #1A1A1A;
    --vk-text-secondary: #555555;
    --vk-text-muted: #999999;
    --vk-text-white: #FFFFFF;
    --vk-text-green: #039fe1;
    --vk-text-price: #333333;

    /* Backgrounds */
    --vk-bg-white: #FFFFFF;
    --vk-bg-light: #F7F7F7;
    --vk-bg-card: #FFFFFF;
    --vk-bg-body: #F0F0F0;

    /* Borders */
    --vk-border: #E0E0E0;
    --vk-border-light: #F0F0F0;
    --vk-border-active: #039fe1;

    /* Shadows */
    --vk-shadow-card: 0 2px 16px rgba(0, 0, 0, 0.08);
    --vk-shadow-card-hover: 0 4px 24px rgba(0, 0, 0, 0.12);
    --vk-shadow-button: 0 2px 8px rgba(3, 159, 225, 0.3);

    /* Typography */
    --vk-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --vk-font-size-xs: 11px;
    --vk-font-size-sm: 13px;
    --vk-font-size-base: 15px;
    --vk-font-size-lg: 17px;
    --vk-font-size-xl: 20px;
    --vk-font-size-2xl: 26px;
    --vk-font-size-3xl: 34px;
    --vk-font-size-4xl: 42px;

    /* Font Weights */
    --vk-font-regular: 400;
    --vk-font-medium: 500;
    --vk-font-semibold: 600;
    --vk-font-bold: 700;
    --vk-font-extrabold: 800;

    /* Spacing */
    --vk-space-2xs: 2px;
    --vk-space-xs: 4px;
    --vk-space-sm: 8px;
    --vk-space-md: 16px;
    --vk-space-lg: 24px;
    --vk-space-xl: 32px;
    --vk-space-2xl: 48px;

    /* Border Radius */
    --vk-radius-sm: 6px;
    --vk-radius-md: 10px;
    --vk-radius-lg: 14px;
    --vk-radius-xl: 20px;
    --vk-radius-pill: 50px;
    --vk-radius-circle: 50%;

    /* Card */
    --vk-card-max-width: 440px;
    --vk-card-padding: 20px;

    /* Transitions */
    --vk-transition-fast: 0.15s ease;
    --vk-transition-normal: 0.3s ease;
    --vk-transition-slow: 0.5s ease;
}