/* Dark Mode Override Classes */
body.dark-mode {
    --bg-color: #121212;
    --text-dark: #f1f1f1;
    --text-light: #a0a0a0;
    --white: #1e1e1e;
}

body.dark-mode .app-header {
    background-color: #0d0d0d;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

body.dark-mode .bottom-nav {
    box-shadow: 0 -2px 15px rgba(0, 0, 0, 0.5);
}

body.dark-mode .premium-card, 
body.dark-mode #calc-display {
    border-color: #333;
}

body.dark-mode .calc-btn {
    background-color: #2a2a2a !important;
    color: #fff;
}