/* ========================================================================= */
        /* 6 DISTINCT THEMES (3 DARK & 3 LIGHT) WITH WCAG AAA CONTRAST */
        /* ========================================================================= */
        :root {
            --bg-body: #080b11;
            --bg-card: rgba(13, 18, 28, 0.85);
            --bg-card-subtle: rgba(7, 10, 16, 0.7);
            --border: #1e293b;
            --border-subtle: #162032;
            --text-primary: #f8fafc;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
        }

        body {
            background-color: var(--bg-body);
            color: var(--text-primary);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            transition: background-color 0.25s cubic-bezier(0.4, 0, 0.2, 1), color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Default Midnight Theme Enhancements */