:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #94a3b8;
    --border: #e2e8f0;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --hover-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Novas variáveis para tema */
    --bg-primary: #f1f5f9;
    --bg-secondary: #ffffff;
    --text-primary: #334155;
    --text-secondary: #64748b;
    --header-bg: linear-gradient(135deg, var(--primary), var(--primary-dark));
    --header-text: #ffffff;
    --footer-bg: #ffffff;
    --input-bg: #ffffff;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --header-bg: linear-gradient(135deg, #1e40af, #1e3a8a);
    --header-text: #e2e8f0;
    --footer-bg: #1e293b;
    --input-bg: #334155;
    --border: #334155;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --hover-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}