/* zekt-action.css — Green theme (Free / Optional) */
    :root {
      --accent: #00ff88;
      --accent-rgb: 0, 255, 136;
    }

    .flip-card-back {
      background: linear-gradient(160deg, #0d1a11 0%, #0a0f0c 100%);
    }

    .header-subtitle {
      color: #ffffff;
    }

    main a:link,
    main a:visited {
      color: #00ff88;
    }