:root {
    /* Light Theme (Fallbacks, but user wants Dark Default) */
    --bg-color: #ffffff;
    --panel-color: #f3f4f6;
    --text-color: #111827;
    --muted-color: #6b7280;
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Purple Brand (AI/SaaS Palette) */
    --brand-500: #6366f1;
    /* Indigo 500 */
    --brand-600: #4f46e5;
    /* Indigo 600 - Hover */
    --brand-700: #4338ca;
    /* Indigo 700 - Active */
    --brand-glow: rgba(99, 102, 241, 0.4);

    /* Functional Colors */
    --nav-bg: rgba(255, 255, 255, 0.9);
    --card-bg: #fff;
    --card-border: #e5e7eb;
    --heading-color: #111827;
}

[data-theme="dark"] {
    /* Dark Theme (Default) */
    --bg-color: #070a0a;
    --panel-color: #0b1111;
    --text-color: rgba(255, 255, 255, 0.92);
    --muted-color: rgba(255, 255, 255, 0.6);
    --border-color: #1f2937;
    --shadow-color: rgba(0, 0, 0, 0.5);

    /* Purple Brand Glow */
    --brand-glow: rgba(99, 102, 241, 0.15);

    /* Functional Colors */
    --nav-bg: rgba(7, 10, 10, 0.8);
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.05);
    --heading-color: #ffffff;
}

/* Force dark theme defaults on body if no attribute set */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Base resets handled in app.css, this file is properties only */