:root{--color-primary:#1677ff;--color-background:#0f172a;--color-card:#1e293b;--color-profit:#16a34a;--color-loss:#ef4444;--color-text-primary:#fff;--color-text-secondary:#94a3b8;--color-border:#334155}body{background:var(--color-background);color:var(--color-text-primary);font-family:Roboto,system-ui,-apple-system,sans-serif}.app-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:10px;padding:20px}.text-profit{color:var(--color-profit)}.text-loss{color:var(--color-loss)}.login-wrapper{background:var(--color-background);justify-content:center;align-items:center;width:100vw;height:100vh;display:flex}.login-card{background:#fff;border-radius:10px;width:420px;padding:20px}.login-header{text-align:center;margin-bottom:20px}.login-footer{text-align:center;margin-top:15px}