:root {
    --btcpay-primary-100: #1e293b; /* slightly lighter than cardBg for contrast */
    --btcpay-primary-200: #1f2937; /* cardBg */
    --btcpay-primary-300: #374151; /* inputBg */
    --btcpay-primary-400: #2563eb; /* primaryHover */
    --btcpay-primary-500: #3b82f6; /* primary */
    --btcpay-primary-600: #2563eb; /* primaryHover again for consistency */
    --btcpay-primary-700: #1f2937; /* cardBg again */
    --btcpay-primary-800: #111827; /* background */
    --btcpay-primary-900: #0f172a; /* darker shade than background for depth */

    --btcpay-body-bg: #111827;
    --btcpay-primary-rgb: 59, 130, 246; /* primary in RGB */
    --btcpay-primary-accent-rgb: 37, 99, 235; /* primaryHover in RGB */
    --btcpay-primary: rgb(var(--btcpay-primary-rgb));
    --btcpay-primary-accent: rgb(var(--btcpay-primary-accent-rgb));
    --btcpay-primary-shadow: rgba(var(--btcpay-primary-rgb), .5);
    --btcpay-bg-tile: var(--btcpay-body-bg);
    --btcpay-box-shadow-lg: none;
  }